1b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroff//===--- RewriteObjC.cpp - Playground for the code rewriter ---------------===// 277cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner// 377cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner// The LLVM Compiler Infrastructure 477cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 777cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner// 877cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner//===----------------------------------------------------------------------===// 977cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner// 1077cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner// Hacks and fun related to the code rewriter. 1177cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner// 1277cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner//===----------------------------------------------------------------------===// 1377cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner 14305c613af6cfc40e519c75d9d2c84c6fa9a841c0Ted Kremenek#include "clang/Rewrite/Frontend/ASTConsumers.h" 1577cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner#include "clang/AST/AST.h" 1677cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner#include "clang/AST/ASTConsumer.h" 172fa67efeaf66a9332c30a026dc1c21bef6c33a6cBenjamin Kramer#include "clang/AST/Attr.h" 188599e7a394e7ed44a32dfe64733125e095e3f28cSteve Naroff#include "clang/AST/ParentMap.h" 193f6f51e28231f65de9c2dd150a2d757b2162cfa3Jordan Rose#include "clang/Basic/CharInfo.h" 200750618b0beacdc9b0a9e210a661e4746823ced7Chris Lattner#include "clang/Basic/Diagnostic.h" 212fa67efeaf66a9332c30a026dc1c21bef6c33a6cBenjamin Kramer#include "clang/Basic/IdentifierTable.h" 222fa67efeaf66a9332c30a026dc1c21bef6c33a6cBenjamin Kramer#include "clang/Basic/SourceManager.h" 2326de4655a38b899e0f0dcef4175032175854d1cfChris Lattner#include "clang/Lex/Lexer.h" 2455fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Rewrite/Core/Rewriter.h" 252fa67efeaf66a9332c30a026dc1c21bef6c33a6cBenjamin Kramer#include "llvm/ADT/DenseSet.h" 262fa67efeaf66a9332c30a026dc1c21bef6c33a6cBenjamin Kramer#include "llvm/ADT/SmallPtrSet.h" 272fa67efeaf66a9332c30a026dc1c21bef6c33a6cBenjamin Kramer#include "llvm/ADT/StringExtras.h" 286cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer#include "llvm/Support/MemoryBuffer.h" 296cb7c1a43b0c8f739d1f54b7fdae5ede86033496Benjamin Kramer#include "llvm/Support/raw_ostream.h" 30651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include <memory> 3172952fc11f80c975492a2a1e0f6e3601c5252e0aFariborz Jahanian 32176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines#ifdef CLANG_ENABLE_OBJC_REWRITER 33176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 3477cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattnerusing namespace clang; 35158ecb9767faf87c2a33df3baec1b160dcc0be84Chris Lattnerusing llvm::utostr; 3677cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner 3777cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattnernamespace { 38b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroff class RewriteObjC : public ASTConsumer { 39d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian protected: 40d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4173e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian enum { 4259b173d81b05b7d10cec8b06b3fd843230ef628cNico Weber BLOCK_FIELD_IS_OBJECT = 3, /* id, NSObject, __attribute__((NSObject)), 4373e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian block, ... */ 4473e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian BLOCK_FIELD_IS_BLOCK = 7, /* a block variable */ 4573e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian BLOCK_FIELD_IS_BYREF = 8, /* the on stack structure holding the 4673e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian __block variable */ 4759b173d81b05b7d10cec8b06b3fd843230ef628cNico Weber BLOCK_FIELD_IS_WEAK = 16, /* declared __weak, only used in byref copy 4873e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian helpers */ 4959b173d81b05b7d10cec8b06b3fd843230ef628cNico Weber BLOCK_BYREF_CALLER = 128, /* called from __block (byref) copy/dispose 5073e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian support routines */ 5173e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian BLOCK_BYREF_CURRENT_MAX = 256 5273e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian }; 5373e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian 5473e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian enum { 5573e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian BLOCK_NEEDS_FREE = (1 << 24), 5673e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian BLOCK_HAS_COPY_DISPOSE = (1 << 25), 5773e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian BLOCK_HAS_CXX_OBJ = (1 << 26), 5873e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian BLOCK_IS_GC = (1 << 27), 5973e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian BLOCK_IS_GLOBAL = (1 << 28), 6073e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian BLOCK_HAS_DESCRIPTOR = (1 << 29) 6173e437bbe7e9631ad9055b1d50f4ae8564efbdf3Fariborz Jahanian }; 625845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian static const int OBJC_ABI_VERSION = 7; 63d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 642c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner Rewriter Rewrite; 65d6471f7c1921c7802804ce3ff6fe9768310f72b9David Blaikie DiagnosticsEngine &Diags; 664f943c23a47d042c3275e78f2d6015daa650f105Steve Naroff const LangOptions &LangOpts; 6701c5748c29e75b29cab5fc7d8ad1b173b29c7ecfChris Lattner ASTContext *Context; 6877cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner SourceManager *SM; 69ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis TranslationUnitDecl *TUDecl; 702b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner FileID MainFileID; 7126de4655a38b899e0f0dcef4175032175854d1cfChris Lattner const char *MainFileStart, *MainFileEnd; 725845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian Stmt *CurrentBody; 735845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian ParentMap *PropParentMap; // created lazily. 74dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian std::string InFileName; 75dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian raw_ostream* OutFile; 76dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian std::string Preamble; 77ab10b2ebad09c283ccab0ef043118b3cf0166b56Fariborz Jahanian 78dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian TypeDecl *ProtocolTypeDecl; 79dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian VarDecl *GlobalVarDecl; 80dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian unsigned RewriteFailedDiag; 81dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian // ObjC string constant support. 82d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff unsigned NumObjCStringLiterals; 83dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian VarDecl *ConstantStringClassReference; 84dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian RecordDecl *NSStringRecord; 851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian // ObjC foreach break/continue generation support. 87dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian int BcLabelCount; 88dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian 89d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned TryFinallyContainsReturnDiag; 90dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian // Needed for super. 91dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian ObjCMethodDecl *CurMethodDef; 92dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian RecordDecl *SuperStructDecl; 93dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian RecordDecl *ConstantStringDecl; 94dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian 95ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff FunctionDecl *MsgSendFunctionDecl; 96874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff FunctionDecl *MsgSendSuperFunctionDecl; 9780a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian FunctionDecl *MsgSendStretFunctionDecl; 9880a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian FunctionDecl *MsgSendSuperStretFunctionDecl; 99acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian FunctionDecl *MsgSendFpretFunctionDecl; 100ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff FunctionDecl *GetClassFunctionDecl; 1019bcb5fc1fd48c1f40c6a3b5a59130ebc313b4957Steve Naroff FunctionDecl *GetMetaClassFunctionDecl; 102d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian FunctionDecl *GetSuperClassFunctionDecl; 103934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff FunctionDecl *SelGetUidFunctionDecl; 1049698464266660346fa2da1bddc3e6404a9819b25Steve Naroff FunctionDecl *CFStringFunctionDecl; 105e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer FunctionDecl *SuperConstructorFunctionDecl; 106dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian FunctionDecl *CurFunctionDef; 107dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian FunctionDecl *CurFunctionDeclToDeclareForBlock; 1081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 109dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian /* Misc. containers needed for meta-data rewrite. */ 110dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian SmallVector<ObjCImplementationDecl *, 8> ClassImplementation; 111dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian SmallVector<ObjCCategoryImplDecl *, 8> CategoryImplementation; 112dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian llvm::SmallPtrSet<ObjCInterfaceDecl*, 8> ObjCSynthesizedStructs; 113dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl*, 8> ObjCSynthesizedProtocols; 114dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian llvm::SmallPtrSet<ObjCInterfaceDecl*, 8> ObjCForwardDecls; 115dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian llvm::DenseMap<ObjCMethodDecl*, std::string> MethodInternalNames; 116dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian SmallVector<Stmt *, 32> Stmts; 117dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian SmallVector<int, 8> ObjCBcLabelNo; 118dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian // Remember all the @protocol(<expr>) expressions. 119dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian llvm::SmallPtrSet<ObjCProtocolDecl *, 32> ProtocolExprDecls; 120dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian 121dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian llvm::DenseSet<uint64_t> CopyDestroyCache; 12254055232a5ddb9529726e934301b125cb720a273Steve Naroff 12354055232a5ddb9529726e934301b125cb720a273Steve Naroff // Block expressions. 1245f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<BlockExpr *, 32> Blocks; 1255f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<int, 32> InnerDeclRefsCount; 126f4b88a45902af1802a1cb42ba48b1c474474f228John McCall SmallVector<DeclRefExpr *, 32> InnerDeclRefs; 1275e49b2f3e0bbc583076fe8af00dff06bcba06dafFariborz Jahanian 128f4b88a45902af1802a1cb42ba48b1c474474f228John McCall SmallVector<DeclRefExpr *, 32> BlockDeclRefs; 1291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13054055232a5ddb9529726e934301b125cb720a273Steve Naroff // Block related declarations. 1315f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<ValueDecl *, 8> BlockByCopyDecls; 132bab71685568085b635f077ee5720d22dffab84beFariborz Jahanian llvm::SmallPtrSet<ValueDecl *, 8> BlockByCopyDeclsPtrSet; 1335f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<ValueDecl *, 8> BlockByRefDecls; 134bab71685568085b635f077ee5720d22dffab84beFariborz Jahanian llvm::SmallPtrSet<ValueDecl *, 8> BlockByRefDeclsPtrSet; 135a73165e47aefbea60312d284343660c9c962c9c3Fariborz Jahanian llvm::DenseMap<ValueDecl *, unsigned> BlockByRefDeclNo; 13654055232a5ddb9529726e934301b125cb720a273Steve Naroff llvm::SmallPtrSet<ValueDecl *, 8> ImportedBlockDecls; 1376cb6eb4c792b504ad652d9230640656852e18ee9Fariborz Jahanian llvm::SmallPtrSet<VarDecl *, 8> ImportedLocalExternalDecls; 1386cb6eb4c792b504ad652d9230640656852e18ee9Fariborz Jahanian 13954055232a5ddb9529726e934301b125cb720a273Steve Naroff llvm::DenseMap<BlockExpr *, std::string> RewrittenBlockExprs; 14054055232a5ddb9529726e934301b125cb720a273Steve Naroff 1414c3580e5f9d1804fa08fecca76ad5089bc9965feSteve Naroff // This maps an original source AST to it's rewritten form. This allows 1424c3580e5f9d1804fa08fecca76ad5089bc9965feSteve Naroff // us to avoid rewriting the same node twice (which is very uncommon). 1434c3580e5f9d1804fa08fecca76ad5089bc9965feSteve Naroff // This is needed to support some of the exotic property rewriting. 1444c3580e5f9d1804fa08fecca76ad5089bc9965feSteve Naroff llvm::DenseMap<Stmt *, Stmt *> ReplacedNodes; 14515f081de2c8ac7deadf5d938b458b20732230cd9Steve Naroff 146dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian // Needed for header files being rewritten 147dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian bool IsHeader; 148dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian bool SilenceRewriteMacroWarning; 149dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian bool objc_impl_method; 150dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian 151b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff bool DisableReplaceStmt; 1524b9c2d235fb9449e249d74f48ecfec601650de93John McCall class DisableReplaceStmtScope { 1534b9c2d235fb9449e249d74f48ecfec601650de93John McCall RewriteObjC &R; 1544b9c2d235fb9449e249d74f48ecfec601650de93John McCall bool SavedValue; 1555845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 1564b9c2d235fb9449e249d74f48ecfec601650de93John McCall public: 1574b9c2d235fb9449e249d74f48ecfec601650de93John McCall DisableReplaceStmtScope(RewriteObjC &R) 1584b9c2d235fb9449e249d74f48ecfec601650de93John McCall : R(R), SavedValue(R.DisableReplaceStmt) { 1594b9c2d235fb9449e249d74f48ecfec601650de93John McCall R.DisableReplaceStmt = true; 1604b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 1614b9c2d235fb9449e249d74f48ecfec601650de93John McCall ~DisableReplaceStmtScope() { 1624b9c2d235fb9449e249d74f48ecfec601650de93John McCall R.DisableReplaceStmt = SavedValue; 1634b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 1644b9c2d235fb9449e249d74f48ecfec601650de93John McCall }; 165d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian void InitializeCommon(ASTContext &context); 1661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16777cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner public: 168e3a6198400453c0d9623207718e4942f7c111f87Ted Kremenek 169f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner // Top Level Driver code. 170651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool HandleTopLevelDecl(DeclGroupRef D) override { 17195ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian for (DeclGroupRef::iterator I = D.begin(), E = D.end(); I != E; ++I) { 172375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(*I)) { 173375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor if (!Class->isThisDeclarationADefinition()) { 174375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor RewriteForwardClassDecl(D); 175375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor break; 176375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor } 17795ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian } 178375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor 179bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor if (ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>(*I)) { 180bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor if (!Proto->isThisDeclarationADefinition()) { 181bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor RewriteForwardProtocolDecl(D); 182bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor break; 183bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor } 184bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor } 185bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 186682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner HandleTopLevelSingleDecl(*I); 18795ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian } 18888c2596edc8eb475e20f6033de1ea01669695a0cArgyrios Kyrtzidis return true; 189682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 190682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner void HandleTopLevelSingleDecl(Decl *D); 1912c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner void HandleDeclInMainFile(Decl *D); 1925f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner RewriteObjC(std::string inFile, raw_ostream *OS, 193d6471f7c1921c7802804ce3ff6fe9768310f72b9David Blaikie DiagnosticsEngine &D, const LangOptions &LOpts, 194c6d656e2b0491f224ddd48507627b51d630d749aEli Friedman bool silenceMacroWarn); 195e452e0ffc81c6c3d79680f552f2623e6cf0956d7Ted Kremenek 19633337ca4d89605025818daf83390ab4271d598d9Pirama Arumuga Nainar ~RewriteObjC() override {} 1971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 198651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void HandleTranslationUnit(ASTContext &C) override; 1991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20088906cddbb1d5b3a868eeeec6cb170befc829c2fFariborz Jahanian void ReplaceStmt(Stmt *Old, Stmt *New) { 201176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines ReplaceStmtWithRange(Old, New, Old->getSourceRange()); 202dcbc5b0b0722282a0fdd829359fe0d7e22adb882Chris Lattner } 203b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff 204b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff void ReplaceStmtWithRange(Stmt *Old, Stmt *New, SourceRange SrcRange) { 205c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines assert(Old != nullptr && New != nullptr && "Expected non-null Stmt's"); 206176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 207176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Stmt *ReplacingStmt = ReplacedNodes[Old]; 208176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (ReplacingStmt) 209176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return; // We can't rewrite the same node twice. 210176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 2114b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (DisableReplaceStmt) 2124b9c2d235fb9449e249d74f48ecfec601650de93John McCall return; 2134b9c2d235fb9449e249d74f48ecfec601650de93John McCall 2147e7492442f32e3abbe246f6bb35568b044c1188bNick Lewycky // Measure the old text. 215b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff int Size = Rewrite.getRangeSize(SrcRange); 216b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff if (Size == -1) { 217b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff Diags.Report(Context->getFullLoc(Old->getLocStart()), RewriteFailedDiag) 218b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff << Old->getSourceRange(); 219b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff return; 220b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff } 221b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff // Get the new text. 222b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff std::string SStr; 223b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff llvm::raw_string_ostream S(SStr); 2246bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines New->printPretty(S, nullptr, PrintingPolicy(LangOpts)); 225b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff const std::string &Str = S.str(); 226b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff 227b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff // If replacement succeeded or warning disabled return with no warning. 228d7407dc92c7d19cafce429e7e1cf9819d3fc0b92Daniel Dunbar if (!Rewrite.ReplaceText(SrcRange.getBegin(), Size, Str)) { 229b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff ReplacedNodes[Old] = New; 230b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff return; 231b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff } 232b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff if (SilenceRewriteMacroWarning) 233b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff return; 234b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff Diags.Report(Context->getFullLoc(Old->getLocStart()), RewriteFailedDiag) 235b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff << Old->getSourceRange(); 236b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff } 237b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff 2385f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner void InsertText(SourceLocation Loc, StringRef Str, 239ba92b2ed976e29ea05f0f5afabaf9488c1096bebSteve Naroff bool InsertAfter = true) { 240aadaf78d65daef3ac1b45e4ad6136ce859962fe2Chris Lattner // If insertion succeeded or warning disabled return with no warning. 241d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer if (!Rewrite.InsertText(Loc, Str, InsertAfter) || 242f3dd57e5378bcf5fc9f05832e92479a535d9cd8aChris Lattner SilenceRewriteMacroWarning) 243f3dd57e5378bcf5fc9f05832e92479a535d9cd8aChris Lattner return; 2441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 245f3dd57e5378bcf5fc9f05832e92479a535d9cd8aChris Lattner Diags.Report(Context->getFullLoc(Loc), RewriteFailedDiag); 246f3dd57e5378bcf5fc9f05832e92479a535d9cd8aChris Lattner } 2471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 248aadaf78d65daef3ac1b45e4ad6136ce859962fe2Chris Lattner void ReplaceText(SourceLocation Start, unsigned OrigLength, 2495f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef Str) { 250aadaf78d65daef3ac1b45e4ad6136ce859962fe2Chris Lattner // If removal succeeded or warning disabled return with no warning. 251d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer if (!Rewrite.ReplaceText(Start, OrigLength, Str) || 252aadaf78d65daef3ac1b45e4ad6136ce859962fe2Chris Lattner SilenceRewriteMacroWarning) 253aadaf78d65daef3ac1b45e4ad6136ce859962fe2Chris Lattner return; 2541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 255aadaf78d65daef3ac1b45e4ad6136ce859962fe2Chris Lattner Diags.Report(Context->getFullLoc(Start), RewriteFailedDiag); 256aadaf78d65daef3ac1b45e4ad6136ce859962fe2Chris Lattner } 2571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 258f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner // Syntactic Rewriting. 2595845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void RewriteRecordBody(RecordDecl *RD); 260452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian void RewriteInclude(); 26195ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian void RewriteForwardClassDecl(DeclGroupRef D); 2626b9240e058bf3451685df73fc8ce181b3046e92bCraig Topper void RewriteForwardClassDecl(const SmallVectorImpl<Decl *> &DG); 263375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor void RewriteForwardClassEpilogue(ObjCInterfaceDecl *ClassDecl, 264a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian const std::string &typedefString); 2655845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void RewriteImplementations(); 266a0876e88aff05e8fc0492d216c17bff16de31a37Steve Naroff void RewritePropertyImplDecl(ObjCPropertyImplDecl *PID, 267a0876e88aff05e8fc0492d216c17bff16de31a37Steve Naroff ObjCImplementationDecl *IMD, 268a0876e88aff05e8fc0492d216c17bff16de31a37Steve Naroff ObjCCategoryImplDecl *CID); 269a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void RewriteInterfaceDecl(ObjCInterfaceDecl *Dcl); 2704afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor void RewriteImplementationDecl(Decl *Dcl); 2712d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian void RewriteObjCMethodDecl(const ObjCInterfaceDecl *IDecl, 2722d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian ObjCMethodDecl *MDecl, std::string &ResultStr); 2737c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian void RewriteTypeIntoString(QualType T, std::string &ResultStr, 2747c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian const FunctionType *&FPRetType); 275a73165e47aefbea60312d284343660c9c962c9c3Fariborz Jahanian void RewriteByRefString(std::string &ResultStr, const std::string &Name, 2761e8011e2fcddc4a638d210ec2dcd21adcf7b1763Fariborz Jahanian ValueDecl *VD, bool def=false); 277a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void RewriteCategoryDecl(ObjCCategoryDecl *Dcl); 278a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void RewriteProtocolDecl(ObjCProtocolDecl *Dcl); 279bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor void RewriteForwardProtocolDecl(DeclGroupRef D); 2806b9240e058bf3451685df73fc8ce181b3046e92bCraig Topper void RewriteForwardProtocolDecl(const SmallVectorImpl<Decl *> &DG); 281a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void RewriteMethodDeclaration(ObjCMethodDecl *Method); 2826327e0d55c590b3c2766fa76ef1db241a0467df2Steve Naroff void RewriteProperty(ObjCPropertyDecl *prop); 28309b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff void RewriteFunctionDecl(FunctionDecl *FD); 284fa297fb29b38991c537a0ae90ff595102dcd21a9Daniel Dunbar void RewriteBlockPointerType(std::string& Str, QualType Type); 285fa297fb29b38991c537a0ae90ff595102dcd21a9Daniel Dunbar void RewriteBlockPointerTypeVariable(std::string& Str, ValueDecl *VD); 286abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian void RewriteBlockLiteralFunctionDecl(FunctionDecl *FD); 287a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void RewriteObjCQualifiedInterfaceTypes(Decl *Dcl); 2884c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian void RewriteTypeOfDecl(VarDecl *VD); 2894f95b750534f2111f28434b282bcbd5656002816Steve Naroff void RewriteObjCQualifiedInterfaceTypes(Expr *E); 2905845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 291f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner // Expression Rewriting. 292f3473a7e48dfaaa88f58dd9304856e16754f9b1cSteve Naroff Stmt *RewriteFunctionBodyOrGlobalInitializer(Stmt *S); 293e64b7771dca65d737dfc49b6137bd69fc1ff6bd2Chris Lattner Stmt *RewriteAtEncode(ObjCEncodeExpr *Exp); 2944b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt *RewritePropertyOrImplicitGetter(PseudoObjectExpr *Pseudo); 2954b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt *RewritePropertyOrImplicitSetter(PseudoObjectExpr *Pseudo); 296b42f8415bcfb84c208fd577458ce1bbc2cd800feSteve Naroff Stmt *RewriteAtSelector(ObjCSelectorExpr *Exp); 297e64b7771dca65d737dfc49b6137bd69fc1ff6bd2Chris Lattner Stmt *RewriteMessageExpr(ObjCMessageExpr *Exp); 298beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff Stmt *RewriteObjCStringLiteral(ObjCStringLiteral *Exp); 29936ee2cb3247a662b6049f9cc097ba5cf9c0bb2b5Fariborz Jahanian Stmt *RewriteObjCProtocolExpr(ObjCProtocolExpr *Exp); 300b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff void RewriteTryReturnStmts(Stmt *S); 301b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff void RewriteSyncReturnStmts(Stmt *S, std::string buf); 302a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Stmt *RewriteObjCTryStmt(ObjCAtTryStmt *S); 303a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian Stmt *RewriteObjCSynchronizedStmt(ObjCAtSynchronizedStmt *S); 304a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek Stmt *RewriteObjCThrowStmt(ObjCAtThrowStmt *S); 305338d1e2ced8037b71d91fb319631846917d0cedaChris Lattner Stmt *RewriteObjCForCollectionStmt(ObjCForCollectionStmt *S, 306338d1e2ced8037b71d91fb319631846917d0cedaChris Lattner SourceLocation OrigEnd); 307e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian Stmt *RewriteBreakStmt(BreakStmt *S); 308e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian Stmt *RewriteContinueStmt(ContinueStmt *S); 3095845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void RewriteCastExpr(CStyleCastExpr *CE); 310d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 31154055232a5ddb9529726e934301b125cb720a273Steve Naroff // Block rewriting. 3121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void RewriteBlocksInFunctionProtoType(QualType funcType, NamedDecl *D); 3135845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 3141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Block specific rewrite rules. 31554055232a5ddb9529726e934301b125cb720a273Steve Naroff void RewriteBlockPointerDecl(NamedDecl *VD); 31652b08f2c8a65c059cb2123fa0fd6317b829416deFariborz Jahanian void RewriteByRefVar(VarDecl *VD); 317f4b88a45902af1802a1cb42ba48b1c474474f228John McCall Stmt *RewriteBlockDeclRefExpr(DeclRefExpr *VD); 3186cb6eb4c792b504ad652d9230640656852e18ee9Fariborz Jahanian Stmt *RewriteLocalVariableExternalStorage(DeclRefExpr *DRE); 31954055232a5ddb9529726e934301b125cb720a273Steve Naroff void RewriteBlockPointerFunctionArgs(FunctionDecl *FD); 3205845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 3215845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void RewriteObjCInternalStruct(ObjCInterfaceDecl *CDecl, 3225845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian std::string &Result); 323651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 324176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void Initialize(ASTContext &context) override = 0; 325651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 326d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Metadata Rewriting. 327d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian virtual void RewriteMetaDataIntoBuffer(std::string &Result) = 0; 328d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian virtual void RewriteObjCProtocolListMetaData(const ObjCList<ObjCProtocolDecl> &Prots, 329d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef prefix, 330d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef ClassName, 331d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) = 0; 332d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian virtual void RewriteObjCCategoryImplDecl(ObjCCategoryImplDecl *CDecl, 333d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) = 0; 334d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian virtual void RewriteObjCProtocolMetaData(ObjCProtocolDecl *Protocol, 335d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef prefix, 336d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef ClassName, 337d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) = 0; 338d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian virtual void RewriteObjCClassMetaData(ObjCImplementationDecl *IDecl, 339d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) = 0; 340d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 341d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Rewriting ivar access 342d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian virtual Stmt *RewriteObjCIvarRefExpr(ObjCIvarRefExpr *IV) = 0; 343d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian virtual void RewriteIvarOffsetComputation(ObjCIvarDecl *ivar, 344d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) = 0; 3455845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 34648d798ce32447607144db70a484cdb99c1180663Benjamin Kramer // Misc. AST transformation routines. Sometimes they end up calling 3475845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian // rewriting routines on the new ASTs. 3485845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian CallExpr *SynthesizeCallToFunctionDecl(FunctionDecl *FD, 3495845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian Expr **args, unsigned nargs, 3505845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian SourceLocation StartLoc=SourceLocation(), 3515845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian SourceLocation EndLoc=SourceLocation()); 3529fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian CallExpr *SynthMsgSendStretCallExpr(FunctionDecl *MsgSendStretFlavor, 3539fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian QualType msgSendType, 3549fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian QualType returnType, 3559fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian SmallVectorImpl<QualType> &ArgTypes, 3569fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian SmallVectorImpl<Expr*> &MsgExprs, 3579fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian ObjCMethodDecl *Method); 3585845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian Stmt *SynthMessageExpr(ObjCMessageExpr *Exp, 3595845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian SourceLocation StartLoc=SourceLocation(), 3605845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian SourceLocation EndLoc=SourceLocation()); 3615845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 3625845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthCountByEnumWithState(std::string &buf); 3635845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthMsgSendFunctionDecl(); 3645845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthMsgSendSuperFunctionDecl(); 3655845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthMsgSendStretFunctionDecl(); 3665845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthMsgSendFpretFunctionDecl(); 3675845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthMsgSendSuperStretFunctionDecl(); 3685845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthGetClassFunctionDecl(); 3695845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthGetMetaClassFunctionDecl(); 3705845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthGetSuperClassFunctionDecl(); 3715845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void SynthSelGetUidFunctionDecl(); 372e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer void SynthSuperConstructorFunctionDecl(); 3735845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 3745845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian std::string SynthesizeByrefCopyDestroyHelper(VarDecl *VD, int flag); 3751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::string SynthesizeBlockHelperFuncs(BlockExpr *CE, int i, 3765f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef funcName, std::string Tag); 3771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::string SynthesizeBlockFunc(BlockExpr *CE, int i, 3785f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef funcName, std::string Tag); 37901aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff std::string SynthesizeBlockImpl(BlockExpr *CE, 38001aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff std::string Tag, std::string Desc); 38101aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff std::string SynthesizeBlockDescriptor(std::string DescTag, 38201aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff std::string ImplTag, 3835f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner int i, StringRef funcName, 38401aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff unsigned hasCopy); 3858a9e170efd32855377bc7fc5f7ea431ec4f8802eFariborz Jahanian Stmt *SynthesizeBlockCall(CallExpr *Exp, const Expr* BlockExp); 38654055232a5ddb9529726e934301b125cb720a273Steve Naroff void SynthesizeBlockLiterals(SourceLocation FunLocStart, 3875f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef FunName); 3885845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian FunctionDecl *SynthBlockInitFunctionDecl(StringRef name); 3895845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian Stmt *SynthBlockInitExpr(BlockExpr *Exp, 3906b9240e058bf3451685df73fc8ce181b3046e92bCraig Topper const SmallVectorImpl<DeclRefExpr *> &InnerBlockDeclRefs); 3915845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 3925845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian // Misc. helper routines. 393dd8079c54b0030152c373541f6b0d3d7983ef18cFariborz Jahanian QualType getProtocolType(); 3945845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void WarnAboutReturnGotoStmts(Stmt *S); 3955845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void HasReturnStmts(Stmt *S, bool &hasReturns); 3965845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void CheckFunctionPointerDecl(QualType dType, NamedDecl *ND); 3975845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void InsertBlockLiteralsWithinFunction(FunctionDecl *FD); 3985845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian void InsertBlockLiteralsWithinMethod(ObjCMethodDecl *MD); 3991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4005845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian bool IsDeclStmtInForeachHeader(DeclStmt *DS); 40154055232a5ddb9529726e934301b125cb720a273Steve Naroff void CollectBlockDeclRefInfo(BlockExpr *Exp); 40254055232a5ddb9529726e934301b125cb720a273Steve Naroff void GetBlockDeclRefExprs(Stmt *S); 4036b9240e058bf3451685df73fc8ce181b3046e92bCraig Topper void GetInnerBlockDeclRefExprs(Stmt *S, 4046b9240e058bf3451685df73fc8ce181b3046e92bCraig Topper SmallVectorImpl<DeclRefExpr *> &InnerBlockDeclRefs, 405176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::SmallPtrSetImpl<const DeclContext *> &InnerContexts); 4061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 40754055232a5ddb9529726e934301b125cb720a273Steve Naroff // We avoid calling Type::isBlockPointerType(), since it operates on the 40854055232a5ddb9529726e934301b125cb720a273Steve Naroff // canonical type. We only care if the top-level type is a closure pointer. 4098189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek bool isTopLevelBlockPointerType(QualType T) { 4108189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek return isa<BlockPointerType>(T); 4118189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek } 4121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4134fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian /// convertBlockPointerToFunctionPointer - Converts a block-pointer type 4144fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian /// to a function pointer type and upon success, returns true; false 4154fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian /// otherwise. 4164fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian bool convertBlockPointerToFunctionPointer(QualType &T) { 4174fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian if (isTopLevelBlockPointerType(T)) { 4184fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian const BlockPointerType *BPT = T->getAs<BlockPointerType>(); 4194fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian T = Context->getPointerType(BPT->getPointeeType()); 4204fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian return true; 4214fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian } 4224fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian return false; 4234fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian } 4244fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian 4255845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian bool needToScanForQualifiers(QualType T); 4265845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian QualType getSuperStructType(); 4275845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian QualType getConstantStringStructType(); 4285845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian QualType convertFunctionTypeOfBlocks(const FunctionType *FT); 4295845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian bool BufferContainsPPDirectives(const char *startBuf, const char *endBuf); 4305845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 4318188e5f6367714e0eda2bdf9a9710131cb15bbfbFariborz Jahanian void convertToUnqualifiedObjCType(QualType &T) { 4328188e5f6367714e0eda2bdf9a9710131cb15bbfbFariborz Jahanian if (T->isObjCQualifiedIdType()) 4338188e5f6367714e0eda2bdf9a9710131cb15bbfbFariborz Jahanian T = Context->getObjCIdType(); 4348188e5f6367714e0eda2bdf9a9710131cb15bbfbFariborz Jahanian else if (T->isObjCQualifiedClassType()) 4358188e5f6367714e0eda2bdf9a9710131cb15bbfbFariborz Jahanian T = Context->getObjCClassType(); 4368188e5f6367714e0eda2bdf9a9710131cb15bbfbFariborz Jahanian else if (T->isObjCObjectPointerType() && 4373a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian T->getPointeeType()->isObjCQualifiedInterfaceType()) { 4383a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian if (const ObjCObjectPointerType * OBJPT = 4393a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian T->getAsObjCInterfacePointerType()) { 4403a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian const ObjCInterfaceType *IFaceT = OBJPT->getInterfaceType(); 4413a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian T = QualType(IFaceT, 0); 4423a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian T = Context->getPointerType(T); 4433a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian } 4443a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian } 4458188e5f6367714e0eda2bdf9a9710131cb15bbfbFariborz Jahanian } 4468188e5f6367714e0eda2bdf9a9710131cb15bbfbFariborz Jahanian 44754055232a5ddb9529726e934301b125cb720a273Steve Naroff // FIXME: This predicate seems like it would be useful to add to ASTContext. 44854055232a5ddb9529726e934301b125cb720a273Steve Naroff bool isObjCType(QualType T) { 44954055232a5ddb9529726e934301b125cb720a273Steve Naroff if (!LangOpts.ObjC1 && !LangOpts.ObjC2) 45054055232a5ddb9529726e934301b125cb720a273Steve Naroff return false; 4511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45254055232a5ddb9529726e934301b125cb720a273Steve Naroff QualType OCT = Context->getCanonicalType(T).getUnqualifiedType(); 4531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45454055232a5ddb9529726e934301b125cb720a273Steve Naroff if (OCT == Context->getCanonicalType(Context->getObjCIdType()) || 45554055232a5ddb9529726e934301b125cb720a273Steve Naroff OCT == Context->getCanonicalType(Context->getObjCClassType())) 45654055232a5ddb9529726e934301b125cb720a273Steve Naroff return true; 4571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4586217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType *PT = OCT->getAs<PointerType>()) { 4591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (isa<ObjCInterfaceType>(PT->getPointeeType()) || 460d1b3c2dd5bc1f3103bee6137957aa7c5f8f2f0bcSteve Naroff PT->getPointeeType()->isObjCQualifiedIdType()) 46154055232a5ddb9529726e934301b125cb720a273Steve Naroff return true; 46254055232a5ddb9529726e934301b125cb720a273Steve Naroff } 46354055232a5ddb9529726e934301b125cb720a273Steve Naroff return false; 46454055232a5ddb9529726e934301b125cb720a273Steve Naroff } 46554055232a5ddb9529726e934301b125cb720a273Steve Naroff bool PointerTypeTakesAnyBlockArguments(QualType QT); 466e985d01390a828d9ea679c26c711d5509fd27709Fariborz Jahanian bool PointerTypeTakesAnyObjCQualifiedType(QualType QT); 4678189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void GetExtentOfArgList(const char *Name, const char *&LParen, 4688189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek const char *&RParen); 4695845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian 470621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff void QuoteDoublequotes(std::string &From, std::string &To) { 4711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump for (unsigned i = 0; i < From.length(); i++) { 472621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff if (From[i] == '"') 473621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff To += "\\\""; 474621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff else 475621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff To += From[i]; 476621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff } 477621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff } 478e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall 479e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType getSimpleFunctionType(QualType result, 480bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArrayRef<QualType> args, 481e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall bool variadic = false) { 48288914801a4d73e321c6f74f97df7d7b11c298bc6Fariborz Jahanian if (result == Context->getObjCInstanceType()) 48388914801a4d73e321c6f74f97df7d7b11c298bc6Fariborz Jahanian result = Context->getObjCIdType(); 484e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall FunctionProtoType::ExtProtoInfo fpi; 485e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall fpi.Variadic = variadic; 486bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose return Context->getFunctionType(result, args, fpi); 487e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall } 4889d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 4895845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian // Helper function: create a CStyleCastExpr with trivial type source info. 4905845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian CStyleCastExpr* NoTypeInfoCStyleCastExpr(ASTContext *Ctx, QualType Ty, 4915845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian CastKind Kind, Expr *E) { 4925845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian TypeSourceInfo *TInfo = Ctx->getTrivialTypeSourceInfo(Ty, SourceLocation()); 4936bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return CStyleCastExpr::Create(*Ctx, Ty, VK_RValue, Kind, E, nullptr, 4946bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TInfo, SourceLocation(), SourceLocation()); 4955845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian } 496651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 497651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines StringLiteral *getStringLiteral(StringRef Str) { 498651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType StrType = Context->getConstantArrayType( 499651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Context->CharTy, llvm::APInt(32, Str.size() + 1), ArrayType::Normal, 500651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 0); 501651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return StringLiteral::Create(*Context, Str, StringLiteral::Ascii, 502651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /*Pascal=*/false, StrType, SourceLocation()); 503651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 5045845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian }; 505d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 506d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian class RewriteObjCFragileABI : public RewriteObjC { 507d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian public: 508d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 509d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCFragileABI(std::string inFile, raw_ostream *OS, 510d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DiagnosticsEngine &D, const LangOptions &LOpts, 511d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian bool silenceMacroWarn) : RewriteObjC(inFile, OS, 512d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian D, LOpts, 513d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian silenceMacroWarn) {} 51433337ca4d89605025818daf83390ab4271d598d9Pirama Arumuga Nainar 51533337ca4d89605025818daf83390ab4271d598d9Pirama Arumuga Nainar ~RewriteObjCFragileABI() override {} 516176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines void Initialize(ASTContext &context) override; 517651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 518d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Rewriting metadata 519d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian template<typename MethodIterator> 520d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian void RewriteObjCMethodsMetaData(MethodIterator MethodBegin, 521d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian MethodIterator MethodEnd, 522d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian bool IsInstanceMethod, 523d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef prefix, 524d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef ClassName, 525d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result); 526651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void RewriteObjCProtocolMetaData(ObjCProtocolDecl *Protocol, 527651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines StringRef prefix, StringRef ClassName, 528651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::string &Result) override; 529651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void RewriteObjCProtocolListMetaData( 530651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const ObjCList<ObjCProtocolDecl> &Prots, 531651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines StringRef prefix, StringRef ClassName, std::string &Result) override; 532651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void RewriteObjCClassMetaData(ObjCImplementationDecl *IDecl, 533651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::string &Result) override; 534651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void RewriteMetaDataIntoBuffer(std::string &Result) override; 535651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void RewriteObjCCategoryImplDecl(ObjCCategoryImplDecl *CDecl, 536651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::string &Result) override; 537651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 538d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Rewriting ivar 539651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void RewriteIvarOffsetComputation(ObjCIvarDecl *ivar, 540651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::string &Result) override; 541651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Stmt *RewriteObjCIvarRefExpr(ObjCIvarRefExpr *IV) override; 542d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian }; 54377cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner} 54477cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner 5451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid RewriteObjC::RewriteBlocksInFunctionProtoType(QualType funcType, 5461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NamedDecl *D) { 547f4c7371fb1d3cebcfb40abad4537bb82515704eaJohn McCall if (const FunctionProtoType *fproto 548723df245307a530da5433dfb43accf187dc3e243Abramo Bagnara = dyn_cast<FunctionProtoType>(funcType.IgnoreParens())) { 549651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto &I : fproto->param_types()) 550651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (isTopLevelBlockPointerType(I)) { 55154055232a5ddb9529726e934301b125cb720a273Steve Naroff // All the args are checked/rewritten. Don't call twice! 55254055232a5ddb9529726e934301b125cb720a273Steve Naroff RewriteBlockPointerDecl(D); 55354055232a5ddb9529726e934301b125cb720a273Steve Naroff break; 55454055232a5ddb9529726e934301b125cb720a273Steve Naroff } 55554055232a5ddb9529726e934301b125cb720a273Steve Naroff } 55654055232a5ddb9529726e934301b125cb720a273Steve Naroff} 55754055232a5ddb9529726e934301b125cb720a273Steve Naroff 55854055232a5ddb9529726e934301b125cb720a273Steve Naroffvoid RewriteObjC::CheckFunctionPointerDecl(QualType funcType, NamedDecl *ND) { 5596217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek const PointerType *PT = funcType->getAs<PointerType>(); 56054055232a5ddb9529726e934301b125cb720a273Steve Naroff if (PT && PointerTypeTakesAnyBlockArguments(funcType)) 56172564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor RewriteBlocksInFunctionProtoType(PT->getPointeeType(), ND); 56254055232a5ddb9529726e934301b125cb720a273Steve Naroff} 56354055232a5ddb9529726e934301b125cb720a273Steve Naroff 564b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanianstatic bool IsHeaderFile(const std::string &Filename) { 565b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanian std::string::size_type DotPos = Filename.rfind('.'); 5661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 567b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanian if (DotPos == std::string::npos) { 568b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanian // no file extension 5691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return false; 570b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanian } 5711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 572b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanian std::string Ext = std::string(Filename.begin()+DotPos+1, Filename.end()); 573b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanian // C header: .h 574b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanian // C++ header: .hh or .H; 575b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanian return Ext == "h" || Ext == "hh" || Ext == "H"; 5761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump} 577b4b2f0c9e80c6613c3e9846da121632ea39bcd5dFariborz Jahanian 5785f9e272e632e951b1efe824cd16acb4d96077930Chris LattnerRewriteObjC::RewriteObjC(std::string inFile, raw_ostream* OS, 579d6471f7c1921c7802804ce3ff6fe9768310f72b9David Blaikie DiagnosticsEngine &D, const LangOptions &LOpts, 580c6d656e2b0491f224ddd48507627b51d630d749aEli Friedman bool silenceMacroWarn) 581c6d656e2b0491f224ddd48507627b51d630d749aEli Friedman : Diags(D), LangOpts(LOpts), InFileName(inFile), OutFile(OS), 582c6d656e2b0491f224ddd48507627b51d630d749aEli Friedman SilenceRewriteMacroWarning(silenceMacroWarn) { 583a7b402dc258bf38ab5e206dbf4916a69d3ee3cc8Steve Naroff IsHeader = IsHeaderFile(inFile); 584d6471f7c1921c7802804ce3ff6fe9768310f72b9David Blaikie RewriteFailedDiag = Diags.getCustomDiagID(DiagnosticsEngine::Warning, 585a7b402dc258bf38ab5e206dbf4916a69d3ee3cc8Steve Naroff "rewriting sub-expression within a macro (may not be correct)"); 586d6471f7c1921c7802804ce3ff6fe9768310f72b9David Blaikie TryFinallyContainsReturnDiag = Diags.getCustomDiagID( 587d6471f7c1921c7802804ce3ff6fe9768310f72b9David Blaikie DiagnosticsEngine::Warning, 5888189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek "rewriter doesn't support user-specified control flow semantics " 5898189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek "for @try/@finally (code may not execute properly)"); 590a7b402dc258bf38ab5e206dbf4916a69d3ee3cc8Steve Naroff} 591a7b402dc258bf38ab5e206dbf4916a69d3ee3cc8Steve Naroff 592176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hinesstd::unique_ptr<ASTConsumer> 593176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hinesclang::CreateObjCRewriter(const std::string &InFile, raw_ostream *OS, 594176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines DiagnosticsEngine &Diags, const LangOptions &LOpts, 595176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines bool SilenceRewriteMacroWarning) { 596176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return llvm::make_unique<RewriteObjCFragileABI>(InFile, OS, Diags, LOpts, 597176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SilenceRewriteMacroWarning); 598e365c50a21cb02e0219433db0c4461566ad4a597Chris Lattner} 59977cd2a0b6eea81cc393b4c9e2941ec31fa09fdbeChris Lattner 600d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::InitializeCommon(ASTContext &context) { 6019e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner Context = &context; 6029e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner SM = &Context->getSourceManager(); 603ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis TUDecl = Context->getTranslationUnitDecl(); 6046bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines MsgSendFunctionDecl = nullptr; 6056bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines MsgSendSuperFunctionDecl = nullptr; 6066bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines MsgSendStretFunctionDecl = nullptr; 6076bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines MsgSendSuperStretFunctionDecl = nullptr; 6086bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines MsgSendFpretFunctionDecl = nullptr; 6096bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines GetClassFunctionDecl = nullptr; 6106bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines GetMetaClassFunctionDecl = nullptr; 6116bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines GetSuperClassFunctionDecl = nullptr; 6126bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SelGetUidFunctionDecl = nullptr; 6136bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CFStringFunctionDecl = nullptr; 6146bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ConstantStringClassReference = nullptr; 6156bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NSStringRecord = nullptr; 6166bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurMethodDef = nullptr; 6176bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurFunctionDef = nullptr; 6186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurFunctionDeclToDeclareForBlock = nullptr; 6196bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines GlobalVarDecl = nullptr; 6206bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SuperStructDecl = nullptr; 6216bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ProtocolTypeDecl = nullptr; 6226bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ConstantStringDecl = nullptr; 6239e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner BcLabelCount = 0; 6246bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SuperConstructorFunctionDecl = nullptr; 625d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff NumObjCStringLiterals = 0; 6266bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PropParentMap = nullptr; 6276bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurrentBody = nullptr; 628b619d957b020744bb6bfdd1cef8169d8042df43eSteve Naroff DisableReplaceStmt = false; 629f292fcf6bd5118499a830e0950429effeb373c28Fariborz Jahanian objc_impl_method = false; 6301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6319e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner // Get the ID and start/end of the main file. 6329e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner MainFileID = SM->getMainFileID(); 6339e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner const llvm::MemoryBuffer *MainBuf = SM->getBuffer(MainFileID); 6349e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner MainFileStart = MainBuf->getBufferStart(); 6359e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner MainFileEnd = MainBuf->getBufferEnd(); 6361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6374e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Rewrite.setSourceMgr(Context->getSourceManager(), Context->getLangOpts()); 6389e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner} 6399e13c2eb681b5d8e14f930b14300caaae22fdb92Chris Lattner 640f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner//===----------------------------------------------------------------------===// 641f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner// Top Level Driver Code 642f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner//===----------------------------------------------------------------------===// 643f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner 644682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnervoid RewriteObjC::HandleTopLevelSingleDecl(Decl *D) { 645e50187a987dadb6a3b6f673125617c8f42ff3560Ted Kremenek if (Diags.hasErrorOccurred()) 646e50187a987dadb6a3b6f673125617c8f42ff3560Ted Kremenek return; 647e50187a987dadb6a3b6f673125617c8f42ff3560Ted Kremenek 6482c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner // Two cases: either the decl could be in the main file, or it could be in a 6492c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner // #included file. If the former, rewrite it now. If the later, check to see 6502c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner // if we rewrote the #include/#import. 6512c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner SourceLocation Loc = D->getLocation(); 652402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth Loc = SM->getExpansionLoc(Loc); 6531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6542c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner // If this is for a builtin, ignore it. 6552c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner if (Loc.isInvalid()) return; 6562c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner 657ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff // Look for built-in declarations that we need to refer during the rewrite. 658ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) { 65909b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff RewriteFunctionDecl(FD); 660248a753f6b670692523c99afaeb8fe98f7ae3ca7Steve Naroff } else if (VarDecl *FVD = dyn_cast<VarDecl>(D)) { 661beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff // declared in <Foundation/NSString.h> 6624087f27e5416c799bcb6be072f905be752acb61cDaniel Dunbar if (FVD->getName() == "_NSConstantStringClassReference") { 663beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff ConstantStringClassReference = FVD; 664beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff return; 665beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff } 6667723fec9b45b7258c0eddf4cbfd0d335348f5edcDouglas Gregor } else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) { 6677723fec9b45b7258c0eddf4cbfd0d335348f5edcDouglas Gregor if (ID->isThisDeclarationADefinition()) 6687723fec9b45b7258c0eddf4cbfd0d335348f5edcDouglas Gregor RewriteInterfaceDecl(ID); 669a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (ObjCCategoryDecl *CD = dyn_cast<ObjCCategoryDecl>(D)) { 670423cb565abc681b770fb4b9b4bc24d398c98157bSteve Naroff RewriteCategoryDecl(CD); 671a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek } else if (ObjCProtocolDecl *PD = dyn_cast<ObjCProtocolDecl>(D)) { 672bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor if (PD->isThisDeclarationADefinition()) 673bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor RewriteProtocolDecl(PD); 674d04341000d35c8808a72838b057eed7bf13b7661Douglas Gregor } else if (LinkageSpecDecl *LSD = dyn_cast<LinkageSpecDecl>(D)) { 675d04341000d35c8808a72838b057eed7bf13b7661Douglas Gregor // Recurse into linkage specifications 67617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis for (DeclContext::decl_iterator DI = LSD->decls_begin(), 67717945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis DIEnd = LSD->decls_end(); 678a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian DI != DIEnd; ) { 679375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor if (ObjCInterfaceDecl *IFace = dyn_cast<ObjCInterfaceDecl>((*DI))) { 680375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor if (!IFace->isThisDeclarationADefinition()) { 681375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor SmallVector<Decl *, 8> DG; 682375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor SourceLocation StartLoc = IFace->getLocStart(); 683375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor do { 684375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor if (isa<ObjCInterfaceDecl>(*DI) && 685375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor !cast<ObjCInterfaceDecl>(*DI)->isThisDeclarationADefinition() && 686375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor StartLoc == (*DI)->getLocStart()) 687375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor DG.push_back(*DI); 688375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor else 689375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor break; 690375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor 6917723fec9b45b7258c0eddf4cbfd0d335348f5edcDouglas Gregor ++DI; 692375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor } while (DI != DIEnd); 693375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor RewriteForwardClassDecl(DG); 694375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor continue; 695a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian } 696a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian } 697bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 698bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor if (ObjCProtocolDecl *Proto = dyn_cast<ObjCProtocolDecl>((*DI))) { 699bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor if (!Proto->isThisDeclarationADefinition()) { 700bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor SmallVector<Decl *, 8> DG; 701bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor SourceLocation StartLoc = Proto->getLocStart(); 702bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor do { 703bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor if (isa<ObjCProtocolDecl>(*DI) && 704bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor !cast<ObjCProtocolDecl>(*DI)->isThisDeclarationADefinition() && 705bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor StartLoc == (*DI)->getLocStart()) 706bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor DG.push_back(*DI); 707bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor else 708bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor break; 709bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 710bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ++DI; 711bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor } while (DI != DIEnd); 712bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor RewriteForwardProtocolDecl(DG); 713bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor continue; 714bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor } 715bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor } 716bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 717682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner HandleTopLevelSingleDecl(*DI); 718a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian ++DI; 719a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian } 720ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff } 721f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner // If we have a decl in the main file, see if we should rewrite it. 72224146975f1af8c1b4b14e8545f218129d0e7dfebEli Friedman if (SM->isWrittenInMainFile(Loc)) 7232c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner return HandleDeclInMainFile(D); 7242c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner} 7252c64b7b9381be4ff62fbdc404ed3f14c8086898dChris Lattner 726f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner//===----------------------------------------------------------------------===// 727f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner// Syntactic (non-AST) Rewriting Code 728f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner//===----------------------------------------------------------------------===// 729f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner 730b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::RewriteInclude() { 7312b2453a7d8fe732561795431f39ceb2b2a832d84Chris Lattner SourceLocation LocStart = SM->getLocForStartOfFile(MainFileID); 7325f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef MainBuf = SM->getBufferData(MainFileID); 733f6ac97b101c8840efa92bf29166077ce4049e293Benjamin Kramer const char *MainBufStart = MainBuf.begin(); 734f6ac97b101c8840efa92bf29166077ce4049e293Benjamin Kramer const char *MainBufEnd = MainBuf.end(); 735452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian size_t ImportLen = strlen("import"); 7361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 737af57b46f12e9dd48485fa27f2088f85466ee9292Fariborz Jahanian // Loop over the whole file, looking for includes. 738452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian for (const char *BufPtr = MainBufStart; BufPtr < MainBufEnd; ++BufPtr) { 739452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian if (*BufPtr == '#') { 740452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian if (++BufPtr == MainBufEnd) 741452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian return; 742452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian while (*BufPtr == ' ' || *BufPtr == '\t') 743452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian if (++BufPtr == MainBufEnd) 744452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian return; 745452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian if (!strncmp(BufPtr, "import", ImportLen)) { 746452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian // replace import with include 7471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation ImportLoc = 748a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis LocStart.getLocWithOffset(BufPtr-MainBufStart); 749d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(ImportLoc, ImportLen, "include"); 750452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian BufPtr += ImportLen; 751452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian } 752452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian } 753452b899c9f5fbcb8ddd130375b7982bed6b4d93fFariborz Jahanian } 7548a12c2777cccdf629b89745b6ecc89a8c1641e4eChris Lattner} 7558a12c2777cccdf629b89745b6ecc89a8c1641e4eChris Lattner 7562d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanianstatic std::string getIvarAccessString(ObjCIvarDecl *OID) { 7572d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian const ObjCInterfaceDecl *ClassDecl = OID->getContainingInterface(); 758eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff std::string S; 759eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff S = "((struct "; 760eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff S += ClassDecl->getIdentifier()->getName(); 761eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff S += "_IMPL *)self)->"; 7625ffe14ca96bd662de7820f6875d3f04789a640c1Daniel Dunbar S += OID->getName(); 763eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff return S; 764eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff} 765eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff 766a0876e88aff05e8fc0492d216c17bff16de31a37Steve Naroffvoid RewriteObjC::RewritePropertyImplDecl(ObjCPropertyImplDecl *PID, 767a0876e88aff05e8fc0492d216c17bff16de31a37Steve Naroff ObjCImplementationDecl *IMD, 768a0876e88aff05e8fc0492d216c17bff16de31a37Steve Naroff ObjCCategoryImplDecl *CID) { 7697c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian static bool objcGetPropertyDefined = false; 7707c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian static bool objcSetPropertyDefined = false; 771d40910b581b09c937a8c1fdcde9b8ec724398fb9Steve Naroff SourceLocation startLoc = PID->getLocStart(); 772d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(startLoc, "// "); 773eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff const char *startBuf = SM->getCharacterData(startLoc); 774eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff assert((*startBuf == '@') && "bogus @synthesize location"); 775eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff const char *semiBuf = strchr(startBuf, ';'); 776eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff assert((*semiBuf == ';') && "@synthesize: can't find ';'"); 7778189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek SourceLocation onePastSemiLoc = 778a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis startLoc.getLocWithOffset(semiBuf-startBuf+1); 779eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff 780eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff if (PID->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic) 781eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff return; // FIXME: is this correct? 7821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 783eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff // Generate the 'getter' function. 784eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff ObjCPropertyDecl *PD = PID->getPropertyDecl(); 785eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff ObjCIvarDecl *OID = PID->getPropertyIvarDecl(); 7861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 787dd2fdf13f11f93a8bd271807db25c71191914807Steve Naroff if (!OID) 788dd2fdf13f11f93a8bd271807db25c71191914807Steve Naroff return; 789ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling unsigned Attributes = PD->getPropertyAttributes(); 790ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian if (!PD->getGetterMethodDecl()->isDefined()) { 791ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling bool GenGetProperty = !(Attributes & ObjCPropertyDecl::OBJC_PR_nonatomic) && 792ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling (Attributes & (ObjCPropertyDecl::OBJC_PR_retain | 793ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian ObjCPropertyDecl::OBJC_PR_copy)); 794ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian std::string Getr; 795ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian if (GenGetProperty && !objcGetPropertyDefined) { 796ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian objcGetPropertyDefined = true; 797ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian // FIXME. Is this attribute correct in all cases? 798ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr = "\nextern \"C\" __declspec(dllimport) " 799ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian "id objc_getProperty(id, SEL, long, bool);\n"; 800ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian } 801ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian RewriteObjCMethodDecl(OID->getContainingInterface(), 802ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian PD->getGetterMethodDecl(), Getr); 803ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += "{ "; 804ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian // Synthesize an explicit cast to gain access to the ivar. 805ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian // See objc-act.c:objc_synthesize_new_getter() for details. 806ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian if (GenGetProperty) { 807ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian // return objc_getProperty(self, _cmd, offsetof(ClassDecl, OID), 1) 808ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += "typedef "; 8096bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const FunctionType *FPRetType = nullptr; 810651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteTypeIntoString(PD->getGetterMethodDecl()->getReturnType(), Getr, 811ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian FPRetType); 812ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += " _TYPE"; 813ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian if (FPRetType) { 814ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += ")"; // close the precedence "scope" for "*". 8157c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian 816ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian // Now, emit the argument types (if any). 817ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian if (const FunctionProtoType *FT = dyn_cast<FunctionProtoType>(FPRetType)){ 818ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += "("; 819651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) { 820ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian if (i) Getr += ", "; 821651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::string ParamStr = 822651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FT->getParamType(i).getAsString(Context->getPrintingPolicy()); 823ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += ParamStr; 824ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian } 825ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian if (FT->isVariadic()) { 826651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (FT->getNumParams()) 827651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Getr += ", "; 828ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += "..."; 829ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian } 830ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += ")"; 831ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian } else 832ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += "()"; 833ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian } 834ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += ";\n"; 835ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += "return (_TYPE)"; 836ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += "objc_getProperty(self, _cmd, "; 8375845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian RewriteIvarOffsetComputation(OID, Getr); 838ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += ", 1)"; 8397c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian } 840ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian else 841ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += "return " + getIvarAccessString(OID); 842ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian Getr += "; }"; 843ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian InsertText(onePastSemiLoc, Getr); 8447c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian } 845ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian 846ec3683b3f33beda2449b4896b1a9548ab283e0e7Fariborz Jahanian if (PD->isReadOnly() || PD->getSetterMethodDecl()->isDefined()) 847eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff return; 8481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 849eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff // Generate the 'setter' function. 850eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff std::string Setr; 851ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling bool GenSetProperty = Attributes & (ObjCPropertyDecl::OBJC_PR_retain | 8527c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian ObjCPropertyDecl::OBJC_PR_copy); 8537c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian if (GenSetProperty && !objcSetPropertyDefined) { 8547c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian objcSetPropertyDefined = true; 8557c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian // FIXME. Is this attribute correct in all cases? 8567c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian Setr = "\nextern \"C\" __declspec(dllimport) " 8577c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian "void objc_setProperty (id, SEL, long, id, bool, bool);\n"; 8587c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian } 8597c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian 8602d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian RewriteObjCMethodDecl(OID->getContainingInterface(), 8612d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian PD->getSetterMethodDecl(), Setr); 862eb0646c8df1c5c8de62b622d13d0c9f19aa29277Steve Naroff Setr += "{ "; 863dd2fdf13f11f93a8bd271807db25c71191914807Steve Naroff // Synthesize an explicit cast to initialize the ivar. 86415f081de2c8ac7deadf5d938b458b20732230cd9Steve Naroff // See objc-act.c:objc_synthesize_new_setter() for details. 8657c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian if (GenSetProperty) { 8667c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian Setr += "objc_setProperty (self, _cmd, "; 8675845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian RewriteIvarOffsetComputation(OID, Setr); 8687c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian Setr += ", (id)"; 8694087f27e5416c799bcb6be072f905be752acb61cDaniel Dunbar Setr += PD->getName(); 8707c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian Setr += ", "; 871ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCPropertyDecl::OBJC_PR_nonatomic) 8727c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian Setr += "0, "; 8737c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian else 8747c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian Setr += "1, "; 875ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling if (Attributes & ObjCPropertyDecl::OBJC_PR_copy) 8767c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian Setr += "1)"; 8777c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian else 8787c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian Setr += "0)"; 8797c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian } 8807c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian else { 8812d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian Setr += getIvarAccessString(OID) + " = "; 8824087f27e5416c799bcb6be072f905be752acb61cDaniel Dunbar Setr += PD->getName(); 8837c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian } 884dd2fdf13f11f93a8bd271807db25c71191914807Steve Naroff Setr += "; }"; 885d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(onePastSemiLoc, Setr); 886d40910b581b09c937a8c1fdcde9b8ec724398fb9Steve Naroff} 8878a12c2777cccdf629b89745b6ecc89a8c1641e4eChris Lattner 888a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanianstatic void RewriteOneForwardClassDecl(ObjCInterfaceDecl *ForwardDecl, 889a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian std::string &typedefString) { 890a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += "#ifndef _REWRITER_typedef_"; 891a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += ForwardDecl->getNameAsString(); 892a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += "\n"; 893a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += "#define _REWRITER_typedef_"; 894a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += ForwardDecl->getNameAsString(); 895a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += "\n"; 896a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += "typedef struct objc_object "; 897a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += ForwardDecl->getNameAsString(); 898a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += ";\n#endif\n"; 899a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian} 900a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian 901375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregorvoid RewriteObjC::RewriteForwardClassEpilogue(ObjCInterfaceDecl *ClassDecl, 902a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian const std::string &typedefString) { 903375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor SourceLocation startLoc = ClassDecl->getLocStart(); 904a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian const char *startBuf = SM->getCharacterData(startLoc); 905a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian const char *semiPtr = strchr(startBuf, ';'); 906a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian // Replace the @class with typedefs corresponding to the classes. 907a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian ReplaceText(startLoc, semiPtr-startBuf+1, typedefString); 908a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian} 909a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian 91095ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanianvoid RewriteObjC::RewriteForwardClassDecl(DeclGroupRef D) { 911f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner std::string typedefString; 91295ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian for (DeclGroupRef::iterator I = D.begin(), E = D.end(); I != E; ++I) { 913375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor ObjCInterfaceDecl *ForwardDecl = cast<ObjCInterfaceDecl>(*I); 91495ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian if (I == D.begin()) { 915a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian // Translate to typedef's that forward reference structs with the same name 916a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian // as the class. As a convenience, we include the original declaration 917a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian // as a comment. 91895ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian typedefString += "// @class "; 91995ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian typedefString += ForwardDecl->getNameAsString(); 92091fbd12d8b6e60b72883ff4c42e2a0993087f876Fariborz Jahanian typedefString += ";\n"; 92195ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian } 922a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian RewriteOneForwardClassDecl(ForwardDecl, typedefString); 923934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 924a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian DeclGroupRef::iterator I = D.begin(); 925375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor RewriteForwardClassEpilogue(cast<ObjCInterfaceDecl>(*I), typedefString); 926a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian} 9271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9286b9240e058bf3451685df73fc8ce181b3046e92bCraig Toppervoid RewriteObjC::RewriteForwardClassDecl(const SmallVectorImpl<Decl *> &D) { 929a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian std::string typedefString; 930a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian for (unsigned i = 0; i < D.size(); i++) { 931375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor ObjCInterfaceDecl *ForwardDecl = cast<ObjCInterfaceDecl>(D[i]); 932a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian if (i == 0) { 933a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += "// @class "; 934a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += ForwardDecl->getNameAsString(); 935a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian typedefString += ";\n"; 936a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian } 937a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian RewriteOneForwardClassDecl(ForwardDecl, typedefString); 938a5e2b23b594a03a5ab846ec9433a720cb3f3cc3aFariborz Jahanian } 939375bb1413c041055262c8a416f20d10474a5eda9Douglas Gregor RewriteForwardClassEpilogue(cast<ObjCInterfaceDecl>(D[0]), typedefString); 940f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner} 941f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner 942b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::RewriteMethodDeclaration(ObjCMethodDecl *Method) { 943d0502407c1b41b2ace326f355d7b7a6876246223Fariborz Jahanian // When method is a synthesized one, such as a getter/setter there is 944d0502407c1b41b2ace326f355d7b7a6876246223Fariborz Jahanian // nothing to rewrite. 94588914801a4d73e321c6f74f97df7d7b11c298bc6Fariborz Jahanian if (Method->isImplicit()) 946d0502407c1b41b2ace326f355d7b7a6876246223Fariborz Jahanian return; 94758dbdeb69c063f82d644504fc638120198f7fad2Steve Naroff SourceLocation LocStart = Method->getLocStart(); 94858dbdeb69c063f82d644504fc638120198f7fad2Steve Naroff SourceLocation LocEnd = Method->getLocEnd(); 9491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 950642116259e8df6286063a17361c20e95b5017a0aChandler Carruth if (SM->getExpansionLineNumber(LocEnd) > 951642116259e8df6286063a17361c20e95b5017a0aChandler Carruth SM->getExpansionLineNumber(LocStart)) { 952d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(LocStart, "#if 0\n"); 953d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocEnd, 1, ";\n#endif\n"); 95458dbdeb69c063f82d644504fc638120198f7fad2Steve Naroff } else { 955d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(LocStart, "// "); 956423cb565abc681b770fb4b9b4bc24d398c98157bSteve Naroff } 957423cb565abc681b770fb4b9b4bc24d398c98157bSteve Naroff} 958423cb565abc681b770fb4b9b4bc24d398c98157bSteve Naroff 9591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpvoid RewriteObjC::RewriteProperty(ObjCPropertyDecl *prop) { 960d0502407c1b41b2ace326f355d7b7a6876246223Fariborz Jahanian SourceLocation Loc = prop->getAtLoc(); 9611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 962d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(Loc, 0, "// "); 9636327e0d55c590b3c2766fa76ef1db241a0467df2Steve Naroff // FIXME: handle properties that are declared across multiple lines. 964957cf65bf32fe7c84886a2296d0b4ede40029850Fariborz Jahanian} 965957cf65bf32fe7c84886a2296d0b4ede40029850Fariborz Jahanian 966b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::RewriteCategoryDecl(ObjCCategoryDecl *CatDecl) { 967423cb565abc681b770fb4b9b4bc24d398c98157bSteve Naroff SourceLocation LocStart = CatDecl->getLocStart(); 9681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 969423cb565abc681b770fb4b9b4bc24d398c98157bSteve Naroff // FIXME: handle category headers that are declared across multiple lines. 970d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocStart, 0, "// "); 9711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 972651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : CatDecl->properties()) 973651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteProperty(I); 974651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : CatDecl->instance_methods()) 975651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteMethodDeclaration(I); 976651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : CatDecl->class_methods()) 977651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteMethodDeclaration(I); 97858dbdeb69c063f82d644504fc638120198f7fad2Steve Naroff 979423cb565abc681b770fb4b9b4bc24d398c98157bSteve Naroff // Lastly, comment out the @end. 98073d1eb064350d5310f0475366cbe54d2d1da27bbFariborz Jahanian ReplaceText(CatDecl->getAtEndRange().getBegin(), 98173d1eb064350d5310f0475366cbe54d2d1da27bbFariborz Jahanian strlen("@end"), "/* @end */"); 982423cb565abc681b770fb4b9b4bc24d398c98157bSteve Naroff} 983423cb565abc681b770fb4b9b4bc24d398c98157bSteve Naroff 984b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::RewriteProtocolDecl(ObjCProtocolDecl *PDecl) { 985752d6ef8c886b4de3365efef15449cd6f939baf1Steve Naroff SourceLocation LocStart = PDecl->getLocStart(); 98661cc296de6c1f82fa84c0abb3ecd142a584838efDouglas Gregor assert(PDecl->isThisDeclarationADefinition()); 98761cc296de6c1f82fa84c0abb3ecd142a584838efDouglas Gregor 988752d6ef8c886b4de3365efef15449cd6f939baf1Steve Naroff // FIXME: handle protocol headers that are declared across multiple lines. 989d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocStart, 0, "// "); 9901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 991651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : PDecl->instance_methods()) 992651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteMethodDeclaration(I); 993651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : PDecl->class_methods()) 994651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteMethodDeclaration(I); 995651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : PDecl->properties()) 996651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteProperty(I); 99707acdf4c776fd98e315bc1de380af8ba3c25559eFariborz Jahanian 998752d6ef8c886b4de3365efef15449cd6f939baf1Steve Naroff // Lastly, comment out the @end. 999782f2f52b78d8ca785110398a7f7b56b830b9ac7Ted Kremenek SourceLocation LocEnd = PDecl->getAtEndRange().getBegin(); 100073d1eb064350d5310f0475366cbe54d2d1da27bbFariborz Jahanian ReplaceText(LocEnd, strlen("@end"), "/* @end */"); 10018cc764c67afc249628ba4f65b8e2d2ad461112ffSteve Naroff 1002b82b3ea8a12e4bc5960f59c1c2b9f483af5471e8Fariborz Jahanian // Must comment out @optional/@required 1003b82b3ea8a12e4bc5960f59c1c2b9f483af5471e8Fariborz Jahanian const char *startBuf = SM->getCharacterData(LocStart); 1004b82b3ea8a12e4bc5960f59c1c2b9f483af5471e8Fariborz Jahanian const char *endBuf = SM->getCharacterData(LocEnd); 1005b82b3ea8a12e4bc5960f59c1c2b9f483af5471e8Fariborz Jahanian for (const char *p = startBuf; p < endBuf; p++) { 1006b82b3ea8a12e4bc5960f59c1c2b9f483af5471e8Fariborz Jahanian if (*p == '@' && !strncmp(p+1, "optional", strlen("optional"))) { 1007a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation OptionalLoc = LocStart.getLocWithOffset(p-startBuf); 1008d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(OptionalLoc, strlen("@optional"), "/* @optional */"); 10091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1010b82b3ea8a12e4bc5960f59c1c2b9f483af5471e8Fariborz Jahanian } 1011b82b3ea8a12e4bc5960f59c1c2b9f483af5471e8Fariborz Jahanian else if (*p == '@' && !strncmp(p+1, "required", strlen("required"))) { 1012a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation OptionalLoc = LocStart.getLocWithOffset(p-startBuf); 1013d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(OptionalLoc, strlen("@required"), "/* @required */"); 10141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1015b82b3ea8a12e4bc5960f59c1c2b9f483af5471e8Fariborz Jahanian } 1016b82b3ea8a12e4bc5960f59c1c2b9f483af5471e8Fariborz Jahanian } 1017752d6ef8c886b4de3365efef15449cd6f939baf1Steve Naroff} 1018752d6ef8c886b4de3365efef15449cd6f939baf1Steve Naroff 1019bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregorvoid RewriteObjC::RewriteForwardProtocolDecl(DeclGroupRef D) { 1020bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor SourceLocation LocStart = (*D.begin())->getLocStart(); 1021bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor if (LocStart.isInvalid()) 1022bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor llvm_unreachable("Invalid SourceLocation"); 1023bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor // FIXME: handle forward protocol that are declared across multiple lines. 1024bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ReplaceText(LocStart, 0, "// "); 1025bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor} 1026bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 1027bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregorvoid 10286b9240e058bf3451685df73fc8ce181b3046e92bCraig TopperRewriteObjC::RewriteForwardProtocolDecl(const SmallVectorImpl<Decl *> &DG) { 1029bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor SourceLocation LocStart = DG[0]->getLocStart(); 1030b7fa992be16668b61f722e6e125137216860469eSteve Naroff if (LocStart.isInvalid()) 1031b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Invalid SourceLocation"); 1032d175ddfdbefff8646982dfd4afc5bdf6edbc9e67Fariborz Jahanian // FIXME: handle forward protocol that are declared across multiple lines. 1033d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocStart, 0, "// "); 1034d175ddfdbefff8646982dfd4afc5bdf6edbc9e67Fariborz Jahanian} 1035d175ddfdbefff8646982dfd4afc5bdf6edbc9e67Fariborz Jahanian 10367c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanianvoid RewriteObjC::RewriteTypeIntoString(QualType T, std::string &ResultStr, 10377c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian const FunctionType *&FPRetType) { 10387c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian if (T->isObjCQualifiedIdType()) 1039c569249ca0ab755ac79d8cbbfcb2bcae19743624Fariborz Jahanian ResultStr += "id"; 10407c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian else if (T->isFunctionPointerType() || 10417c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian T->isBlockPointerType()) { 104276e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff // needs special handling, since pointer-to-functions have special 104376e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff // syntax (where a decaration models use). 10447c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian QualType retType = T; 1045f4312dc9b690fc79039560c125e9e3f8ea8a478eSteve Naroff QualType PointeeTy; 10466217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek if (const PointerType* PT = retType->getAs<PointerType>()) 1047f4312dc9b690fc79039560c125e9e3f8ea8a478eSteve Naroff PointeeTy = PT->getPointeeType(); 10486217b80b7a1379b74cced1c076338262c3c980b3Ted Kremenek else if (const BlockPointerType *BPT = retType->getAs<BlockPointerType>()) 1049f4312dc9b690fc79039560c125e9e3f8ea8a478eSteve Naroff PointeeTy = BPT->getPointeeType(); 1050183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall if ((FPRetType = PointeeTy->getAs<FunctionType>())) { 1051651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ResultStr += 1052651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FPRetType->getReturnType().getAsString(Context->getPrintingPolicy()); 1053f4312dc9b690fc79039560c125e9e3f8ea8a478eSteve Naroff ResultStr += "(*"; 105476e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff } 105576e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff } else 105630c42404202d2e2512e51efc6066bd614cfdb5a4Douglas Gregor ResultStr += T.getAsString(Context->getPrintingPolicy()); 10577c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian} 10587c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian 10592d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanianvoid RewriteObjC::RewriteObjCMethodDecl(const ObjCInterfaceDecl *IDecl, 10602d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian ObjCMethodDecl *OMD, 10617c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian std::string &ResultStr) { 10627c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian //fprintf(stderr,"In RewriteObjCMethodDecl\n"); 10636bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const FunctionType *FPRetType = nullptr; 10647c63fddad600e710042fa018768807bd04eaa233Fariborz Jahanian ResultStr += "\nstatic "; 1065651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteTypeIntoString(OMD->getReturnType(), ResultStr, FPRetType); 1066531a1ea2f4c88817f3dc0f4628dfc34536f54c5eFariborz Jahanian ResultStr += " "; 10671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 106848a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian // Unique method name 1069b7908b5c54aeafc1ff98797e304d61c68b1aed25Fariborz Jahanian std::string NameStr; 10701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1071f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor if (OMD->isInstanceMethod()) 1072b7908b5c54aeafc1ff98797e304d61c68b1aed25Fariborz Jahanian NameStr += "_I_"; 107348a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian else 1074b7908b5c54aeafc1ff98797e304d61c68b1aed25Fariborz Jahanian NameStr += "_C_"; 10751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10762d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian NameStr += IDecl->getNameAsString(); 1077b7908b5c54aeafc1ff98797e304d61c68b1aed25Fariborz Jahanian NameStr += "_"; 10781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (ObjCCategoryImplDecl *CID = 10803e0a540b6d846178857289ec0eb8470a278d11a3Steve Naroff dyn_cast<ObjCCategoryImplDecl>(OMD->getDeclContext())) { 1081d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner NameStr += CID->getNameAsString(); 1082b7908b5c54aeafc1ff98797e304d61c68b1aed25Fariborz Jahanian NameStr += "_"; 108348a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian } 10841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Append selector names, replacing ':' with '_' 1085077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner { 1086077bf5e2f48acfa9e7d69429b6e4ba86ea14896dChris Lattner std::string selString = OMD->getSelector().getAsString(); 108748a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian int len = selString.size(); 108848a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian for (int i = 0; i < len; i++) 108948a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian if (selString[i] == ':') 109048a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian selString[i] = '_'; 1091b7908b5c54aeafc1ff98797e304d61c68b1aed25Fariborz Jahanian NameStr += selString; 109248a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian } 1093b7908b5c54aeafc1ff98797e304d61c68b1aed25Fariborz Jahanian // Remember this name for metadata emission 1094b7908b5c54aeafc1ff98797e304d61c68b1aed25Fariborz Jahanian MethodInternalNames[OMD] = NameStr; 1095b7908b5c54aeafc1ff98797e304d61c68b1aed25Fariborz Jahanian ResultStr += NameStr; 10961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 109748a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian // Rewrite arguments 109848a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian ResultStr += "("; 10991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 110048a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian // invisible arguments 1101f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor if (OMD->isInstanceMethod()) { 11022d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian QualType selfTy = Context->getObjCInterfaceType(IDecl); 110348a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian selfTy = Context->getPointerType(selfTy); 110462ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (!LangOpts.MicrosoftExt) { 11052d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian if (ObjCSynthesizedStructs.count(const_cast<ObjCInterfaceDecl*>(IDecl))) 110605b8c782669d07a71d4889bcacfd53a29cd16fcbSteve Naroff ResultStr += "struct "; 110705b8c782669d07a71d4889bcacfd53a29cd16fcbSteve Naroff } 110805b8c782669d07a71d4889bcacfd53a29cd16fcbSteve Naroff // When rewriting for Microsoft, explicitly omit the structure name. 11092d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian ResultStr += IDecl->getNameAsString(); 111061ed9caca5dd6a9b9ccee7fb51296234e6cc68adSteve Naroff ResultStr += " *"; 111148a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian } 111248a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian else 1113fa297fb29b38991c537a0ae90ff595102dcd21a9Daniel Dunbar ResultStr += Context->getObjCClassType().getAsString( 111430c42404202d2e2512e51efc6066bd614cfdb5a4Douglas Gregor Context->getPrintingPolicy()); 11151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 111648a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian ResultStr += " self, "; 111730c42404202d2e2512e51efc6066bd614cfdb5a4Douglas Gregor ResultStr += Context->getObjCSelType().getAsString(Context->getPrintingPolicy()); 111848a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian ResultStr += " _cmd"; 11191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 112048a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian // Method arguments. 1121651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto *PDecl : OMD->params()) { 112248a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian ResultStr += ", "; 1123543409e200234a1c97ea38b9d52bce22ff807080Steve Naroff if (PDecl->getType()->isObjCQualifiedIdType()) { 1124543409e200234a1c97ea38b9d52bce22ff807080Steve Naroff ResultStr += "id "; 1125d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner ResultStr += PDecl->getNameAsString(); 1126543409e200234a1c97ea38b9d52bce22ff807080Steve Naroff } else { 1127d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner std::string Name = PDecl->getNameAsString(); 11284fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian QualType QT = PDecl->getType(); 11294fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian // Make sure we convert "t (^)(...)" to "t (*)(...)". 11302610f90135571be7bf983c80a1cf7bfa0844dc57Fariborz Jahanian (void)convertBlockPointerToFunctionPointer(QT); 11312610f90135571be7bf983c80a1cf7bfa0844dc57Fariborz Jahanian QT.getAsStringInternal(Name, Context->getPrintingPolicy()); 1132543409e200234a1c97ea38b9d52bce22ff807080Steve Naroff ResultStr += Name; 1133543409e200234a1c97ea38b9d52bce22ff807080Steve Naroff } 113448a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian } 11357c39ff7eb3dd7ae9b2b81cb66a139c9b52f47f1dFariborz Jahanian if (OMD->isVariadic()) 11367c39ff7eb3dd7ae9b2b81cb66a139c9b52f47f1dFariborz Jahanian ResultStr += ", ..."; 1137531a1ea2f4c88817f3dc0f4628dfc34536f54c5eFariborz Jahanian ResultStr += ") "; 11381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 113976e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff if (FPRetType) { 114076e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff ResultStr += ")"; // close the precedence "scope" for "*". 11411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 114276e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff // Now, emit the argument types (if any). 114372564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor if (const FunctionProtoType *FT = dyn_cast<FunctionProtoType>(FPRetType)) { 114476e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff ResultStr += "("; 1145651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (unsigned i = 0, e = FT->getNumParams(); i != e; ++i) { 114676e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff if (i) ResultStr += ", "; 1147651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::string ParamStr = 1148651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FT->getParamType(i).getAsString(Context->getPrintingPolicy()); 114976e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff ResultStr += ParamStr; 115076e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff } 115176e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff if (FT->isVariadic()) { 1152651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (FT->getNumParams()) 1153651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ResultStr += ", "; 115476e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff ResultStr += "..."; 115576e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff } 115676e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff ResultStr += ")"; 115776e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff } else { 115876e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff ResultStr += "()"; 115976e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff } 116076e429d781a8871afb5050f39ab8e00e72bdf2f8Steve Naroff } 116148a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian} 11624afa39deaa245592977136d367251ee2c173dd8dDouglas Gregorvoid RewriteObjC::RewriteImplementationDecl(Decl *OID) { 1163a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCImplementationDecl *IMD = dyn_cast<ObjCImplementationDecl>(OID); 1164a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCCategoryImplDecl *CID = dyn_cast<ObjCCategoryImplDecl>(OID); 11651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1166a135216595c00ddb5ce5f5b853a3d1f4037a13b7Fariborz Jahanian InsertText(IMD ? IMD->getLocStart() : CID->getLocStart(), "// "); 11671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1168651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *OMD : IMD ? IMD->instance_methods() : CID->instance_methods()) { 116948a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian std::string ResultStr; 11702d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian RewriteObjCMethodDecl(OMD->getClassInterface(), OMD, ResultStr); 117148a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian SourceLocation LocStart = OMD->getLocStart(); 11726fb0aee4f9dc261bbec72e1283ad8dc0557a6d96Argyrios Kyrtzidis SourceLocation LocEnd = OMD->getCompoundBody()->getLocStart(); 1173d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 117448a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian const char *startBuf = SM->getCharacterData(LocStart); 117548a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian const char *endBuf = SM->getCharacterData(LocEnd); 1176d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocStart, endBuf-startBuf, ResultStr); 117748a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian } 11781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1179651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *OMD : IMD ? IMD->class_methods() : CID->class_methods()) { 118048a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian std::string ResultStr; 11812d8c1fdef9658d7c3d56bcfd5533188f6c8b6bf5Fariborz Jahanian RewriteObjCMethodDecl(OMD->getClassInterface(), OMD, ResultStr); 118248a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian SourceLocation LocStart = OMD->getLocStart(); 11836fb0aee4f9dc261bbec72e1283ad8dc0557a6d96Argyrios Kyrtzidis SourceLocation LocEnd = OMD->getCompoundBody()->getLocStart(); 11841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 118548a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian const char *startBuf = SM->getCharacterData(LocStart); 118648a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian const char *endBuf = SM->getCharacterData(LocEnd); 1187d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocStart, endBuf-startBuf, ResultStr); 118848a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian } 1189651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : IMD ? IMD->property_impls() : CID->property_impls()) 1190651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewritePropertyImplDecl(I, IMD, CID); 1191d40910b581b09c937a8c1fdcde9b8ec724398fb9Steve Naroff 1192d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(IMD ? IMD->getLocEnd() : CID->getLocEnd(), "// "); 119348a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian} 119448a0b6aa9d23bba2bd4ad943ad59106a91f8b3f7Fariborz Jahanian 1195b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::RewriteInterfaceDecl(ObjCInterfaceDecl *ClassDecl) { 1196f908a87299d278164540f90b5b6e6cab7b14fb41Steve Naroff std::string ResultStr; 11977723fec9b45b7258c0eddf4cbfd0d335348f5edcDouglas Gregor if (!ObjCForwardDecls.count(ClassDecl->getCanonicalDecl())) { 11986c6a2dbb4db96a69d6f1c2e3d322e4c3abd43814Steve Naroff // we haven't seen a forward decl - generate a typedef. 11995086a8df9a269acc2e4f0deb1895d4a9e9d13f4dSteve Naroff ResultStr = "#ifndef _REWRITER_typedef_"; 1200d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner ResultStr += ClassDecl->getNameAsString(); 120132174826f58d38c20f376fe64ceac4a278133883Steve Naroff ResultStr += "\n"; 120232174826f58d38c20f376fe64ceac4a278133883Steve Naroff ResultStr += "#define _REWRITER_typedef_"; 1203d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner ResultStr += ClassDecl->getNameAsString(); 120432174826f58d38c20f376fe64ceac4a278133883Steve Naroff ResultStr += "\n"; 120561ed9caca5dd6a9b9ccee7fb51296234e6cc68adSteve Naroff ResultStr += "typedef struct objc_object "; 1206d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner ResultStr += ClassDecl->getNameAsString(); 120732174826f58d38c20f376fe64ceac4a278133883Steve Naroff ResultStr += ";\n#endif\n"; 12086c6a2dbb4db96a69d6f1c2e3d322e4c3abd43814Steve Naroff // Mark this typedef as having been generated. 12097723fec9b45b7258c0eddf4cbfd0d335348f5edcDouglas Gregor ObjCForwardDecls.insert(ClassDecl->getCanonicalDecl()); 12106c6a2dbb4db96a69d6f1c2e3d322e4c3abd43814Steve Naroff } 12115845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian RewriteObjCInternalStruct(ClassDecl, ResultStr); 12121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1213651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : ClassDecl->properties()) 1214651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteProperty(I); 1215651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : ClassDecl->instance_methods()) 1216651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteMethodDeclaration(I); 1217651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *I : ClassDecl->class_methods()) 1218651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines RewriteMethodDeclaration(I); 121958dbdeb69c063f82d644504fc638120198f7fad2Steve Naroff 12202feac5e559ca5c9693a3a19905ab106b9c52e193Steve Naroff // Lastly, comment out the @end. 122173d1eb064350d5310f0475366cbe54d2d1da27bbFariborz Jahanian ReplaceText(ClassDecl->getAtEndRange().getBegin(), strlen("@end"), 122273d1eb064350d5310f0475366cbe54d2d1da27bbFariborz Jahanian "/* @end */"); 1223bef1185418705e16012b3dd50cd7c260c8d6b79cSteve Naroff} 1224bef1185418705e16012b3dd50cd7c260c8d6b79cSteve Naroff 12254b9c2d235fb9449e249d74f48ecfec601650de93John McCallStmt *RewriteObjC::RewritePropertyOrImplicitSetter(PseudoObjectExpr *PseudoOp) { 12264b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceRange OldRange = PseudoOp->getSourceRange(); 12274b9c2d235fb9449e249d74f48ecfec601650de93John McCall 12284b9c2d235fb9449e249d74f48ecfec601650de93John McCall // We just magically know some things about the structure of this 12294b9c2d235fb9449e249d74f48ecfec601650de93John McCall // expression. 12304b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCMessageExpr *OldMsg = 12314b9c2d235fb9449e249d74f48ecfec601650de93John McCall cast<ObjCMessageExpr>(PseudoOp->getSemanticExpr( 12324b9c2d235fb9449e249d74f48ecfec601650de93John McCall PseudoOp->getNumSemanticExprs() - 1)); 12334b9c2d235fb9449e249d74f48ecfec601650de93John McCall 12344b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Because the rewriter doesn't allow us to rewrite rewritten code, 12354b9c2d235fb9449e249d74f48ecfec601650de93John McCall // we need to suppress rewriting the sub-statements. 12364b9c2d235fb9449e249d74f48ecfec601650de93John McCall Expr *Base, *RHS; 12374b9c2d235fb9449e249d74f48ecfec601650de93John McCall { 12384b9c2d235fb9449e249d74f48ecfec601650de93John McCall DisableReplaceStmtScope S(*this); 12394b9c2d235fb9449e249d74f48ecfec601650de93John McCall 12404b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Rebuild the base expression if we have one. 12416bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Base = nullptr; 12424b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (OldMsg->getReceiverKind() == ObjCMessageExpr::Instance) { 12434b9c2d235fb9449e249d74f48ecfec601650de93John McCall Base = OldMsg->getInstanceReceiver(); 12444b9c2d235fb9449e249d74f48ecfec601650de93John McCall Base = cast<OpaqueValueExpr>(Base)->getSourceExpr(); 12454b9c2d235fb9449e249d74f48ecfec601650de93John McCall Base = cast<Expr>(RewriteFunctionBodyOrGlobalInitializer(Base)); 12468ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian } 12474b9c2d235fb9449e249d74f48ecfec601650de93John McCall 12484b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Rebuild the RHS. 12494b9c2d235fb9449e249d74f48ecfec601650de93John McCall RHS = cast<BinaryOperator>(PseudoOp->getSyntacticForm())->getRHS(); 12504b9c2d235fb9449e249d74f48ecfec601650de93John McCall RHS = cast<OpaqueValueExpr>(RHS)->getSourceExpr(); 12514b9c2d235fb9449e249d74f48ecfec601650de93John McCall RHS = cast<Expr>(RewriteFunctionBodyOrGlobalInitializer(RHS)); 12524b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 12534b9c2d235fb9449e249d74f48ecfec601650de93John McCall 12544b9c2d235fb9449e249d74f48ecfec601650de93John McCall // TODO: avoid this copy. 12554b9c2d235fb9449e249d74f48ecfec601650de93John McCall SmallVector<SourceLocation, 1> SelLocs; 12564b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSelectorLocs(SelLocs); 12574b9c2d235fb9449e249d74f48ecfec601650de93John McCall 12586bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCMessageExpr *NewMsg = nullptr; 12594b9c2d235fb9449e249d74f48ecfec601650de93John McCall switch (OldMsg->getReceiverKind()) { 12604b9c2d235fb9449e249d74f48ecfec601650de93John McCall case ObjCMessageExpr::Class: 12614b9c2d235fb9449e249d74f48ecfec601650de93John McCall NewMsg = ObjCMessageExpr::Create(*Context, OldMsg->getType(), 12624b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getValueKind(), 12634b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getLeftLoc(), 12644b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getClassReceiverTypeInfo(), 12654b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSelector(), 12664b9c2d235fb9449e249d74f48ecfec601650de93John McCall SelLocs, 12674b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getMethodDecl(), 12684b9c2d235fb9449e249d74f48ecfec601650de93John McCall RHS, 1269746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->getRightLoc(), 1270746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->isImplicit()); 12714b9c2d235fb9449e249d74f48ecfec601650de93John McCall break; 12724b9c2d235fb9449e249d74f48ecfec601650de93John McCall 12734b9c2d235fb9449e249d74f48ecfec601650de93John McCall case ObjCMessageExpr::Instance: 12744b9c2d235fb9449e249d74f48ecfec601650de93John McCall NewMsg = ObjCMessageExpr::Create(*Context, OldMsg->getType(), 12754b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getValueKind(), 12764b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getLeftLoc(), 12774b9c2d235fb9449e249d74f48ecfec601650de93John McCall Base, 12784b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSelector(), 12794b9c2d235fb9449e249d74f48ecfec601650de93John McCall SelLocs, 12804b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getMethodDecl(), 12814b9c2d235fb9449e249d74f48ecfec601650de93John McCall RHS, 1282746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->getRightLoc(), 1283746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->isImplicit()); 12844b9c2d235fb9449e249d74f48ecfec601650de93John McCall break; 12854b9c2d235fb9449e249d74f48ecfec601650de93John McCall 12864b9c2d235fb9449e249d74f48ecfec601650de93John McCall case ObjCMessageExpr::SuperClass: 12874b9c2d235fb9449e249d74f48ecfec601650de93John McCall case ObjCMessageExpr::SuperInstance: 12884b9c2d235fb9449e249d74f48ecfec601650de93John McCall NewMsg = ObjCMessageExpr::Create(*Context, OldMsg->getType(), 12894b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getValueKind(), 12904b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getLeftLoc(), 12914b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSuperLoc(), 12924b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getReceiverKind() == ObjCMessageExpr::SuperInstance, 12934b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSuperType(), 12944b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSelector(), 12954b9c2d235fb9449e249d74f48ecfec601650de93John McCall SelLocs, 12964b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getMethodDecl(), 12974b9c2d235fb9449e249d74f48ecfec601650de93John McCall RHS, 1298746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->getRightLoc(), 1299746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->isImplicit()); 13004b9c2d235fb9449e249d74f48ecfec601650de93John McCall break; 1301f2ad2c92720f0e25c032188783a1d6374155f03aFariborz Jahanian } 13021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13034b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt *Replacement = SynthMessageExpr(NewMsg); 13044b9c2d235fb9449e249d74f48ecfec601650de93John McCall ReplaceStmtWithRange(PseudoOp, Replacement, OldRange); 13054b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Replacement; 130615f081de2c8ac7deadf5d938b458b20732230cd9Steve Naroff} 130715f081de2c8ac7deadf5d938b458b20732230cd9Steve Naroff 13084b9c2d235fb9449e249d74f48ecfec601650de93John McCallStmt *RewriteObjC::RewritePropertyOrImplicitGetter(PseudoObjectExpr *PseudoOp) { 13094b9c2d235fb9449e249d74f48ecfec601650de93John McCall SourceRange OldRange = PseudoOp->getSourceRange(); 13104b9c2d235fb9449e249d74f48ecfec601650de93John McCall 13114b9c2d235fb9449e249d74f48ecfec601650de93John McCall // We just magically know some things about the structure of this 13124b9c2d235fb9449e249d74f48ecfec601650de93John McCall // expression. 13134b9c2d235fb9449e249d74f48ecfec601650de93John McCall ObjCMessageExpr *OldMsg = 13144b9c2d235fb9449e249d74f48ecfec601650de93John McCall cast<ObjCMessageExpr>(PseudoOp->getResultExpr()->IgnoreImplicit()); 13154b9c2d235fb9449e249d74f48ecfec601650de93John McCall 13164b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Because the rewriter doesn't allow us to rewrite rewritten code, 13174b9c2d235fb9449e249d74f48ecfec601650de93John McCall // we need to suppress rewriting the sub-statements. 13186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Expr *Base = nullptr; 13194b9c2d235fb9449e249d74f48ecfec601650de93John McCall { 13204b9c2d235fb9449e249d74f48ecfec601650de93John McCall DisableReplaceStmtScope S(*this); 13214b9c2d235fb9449e249d74f48ecfec601650de93John McCall 13224b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Rebuild the base expression if we have one. 13234b9c2d235fb9449e249d74f48ecfec601650de93John McCall if (OldMsg->getReceiverKind() == ObjCMessageExpr::Instance) { 13244b9c2d235fb9449e249d74f48ecfec601650de93John McCall Base = OldMsg->getInstanceReceiver(); 13254b9c2d235fb9449e249d74f48ecfec601650de93John McCall Base = cast<OpaqueValueExpr>(Base)->getSourceExpr(); 13264b9c2d235fb9449e249d74f48ecfec601650de93John McCall Base = cast<Expr>(RewriteFunctionBodyOrGlobalInitializer(Base)); 13278ac2d449820fd0df00fcbde5bf82165c1f49854dFariborz Jahanian } 13288599e7a394e7ed44a32dfe64733125e095e3f28cSteve Naroff } 13294b9c2d235fb9449e249d74f48ecfec601650de93John McCall 13304b9c2d235fb9449e249d74f48ecfec601650de93John McCall // Intentionally empty. 13314b9c2d235fb9449e249d74f48ecfec601650de93John McCall SmallVector<SourceLocation, 1> SelLocs; 13324b9c2d235fb9449e249d74f48ecfec601650de93John McCall SmallVector<Expr*, 1> Args; 13334b9c2d235fb9449e249d74f48ecfec601650de93John McCall 13346bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCMessageExpr *NewMsg = nullptr; 13354b9c2d235fb9449e249d74f48ecfec601650de93John McCall switch (OldMsg->getReceiverKind()) { 13364b9c2d235fb9449e249d74f48ecfec601650de93John McCall case ObjCMessageExpr::Class: 13374b9c2d235fb9449e249d74f48ecfec601650de93John McCall NewMsg = ObjCMessageExpr::Create(*Context, OldMsg->getType(), 13384b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getValueKind(), 13394b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getLeftLoc(), 13404b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getClassReceiverTypeInfo(), 13414b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSelector(), 13424b9c2d235fb9449e249d74f48ecfec601650de93John McCall SelLocs, 13434b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getMethodDecl(), 13444b9c2d235fb9449e249d74f48ecfec601650de93John McCall Args, 1345746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->getRightLoc(), 1346746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->isImplicit()); 13474b9c2d235fb9449e249d74f48ecfec601650de93John McCall break; 13484b9c2d235fb9449e249d74f48ecfec601650de93John McCall 13494b9c2d235fb9449e249d74f48ecfec601650de93John McCall case ObjCMessageExpr::Instance: 13504b9c2d235fb9449e249d74f48ecfec601650de93John McCall NewMsg = ObjCMessageExpr::Create(*Context, OldMsg->getType(), 13514b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getValueKind(), 13524b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getLeftLoc(), 13534b9c2d235fb9449e249d74f48ecfec601650de93John McCall Base, 13544b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSelector(), 13554b9c2d235fb9449e249d74f48ecfec601650de93John McCall SelLocs, 13564b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getMethodDecl(), 13574b9c2d235fb9449e249d74f48ecfec601650de93John McCall Args, 1358746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->getRightLoc(), 1359746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->isImplicit()); 13604b9c2d235fb9449e249d74f48ecfec601650de93John McCall break; 13614b9c2d235fb9449e249d74f48ecfec601650de93John McCall 13624b9c2d235fb9449e249d74f48ecfec601650de93John McCall case ObjCMessageExpr::SuperClass: 13634b9c2d235fb9449e249d74f48ecfec601650de93John McCall case ObjCMessageExpr::SuperInstance: 13644b9c2d235fb9449e249d74f48ecfec601650de93John McCall NewMsg = ObjCMessageExpr::Create(*Context, OldMsg->getType(), 13654b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getValueKind(), 13664b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getLeftLoc(), 13674b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSuperLoc(), 13684b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getReceiverKind() == ObjCMessageExpr::SuperInstance, 13694b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSuperType(), 13704b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getSelector(), 13714b9c2d235fb9449e249d74f48ecfec601650de93John McCall SelLocs, 13724b9c2d235fb9449e249d74f48ecfec601650de93John McCall OldMsg->getMethodDecl(), 13734b9c2d235fb9449e249d74f48ecfec601650de93John McCall Args, 1374746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->getRightLoc(), 1375746f5bcbfde5b25269169c63c66492311673b67dArgyrios Kyrtzidis OldMsg->isImplicit()); 13764b9c2d235fb9449e249d74f48ecfec601650de93John McCall break; 13778599e7a394e7ed44a32dfe64733125e095e3f28cSteve Naroff } 13784b9c2d235fb9449e249d74f48ecfec601650de93John McCall 13794b9c2d235fb9449e249d74f48ecfec601650de93John McCall Stmt *Replacement = SynthMessageExpr(NewMsg); 13804b9c2d235fb9449e249d74f48ecfec601650de93John McCall ReplaceStmtWithRange(PseudoOp, Replacement, OldRange); 13814b9c2d235fb9449e249d74f48ecfec601650de93John McCall return Replacement; 138215f081de2c8ac7deadf5d938b458b20732230cd9Steve Naroff} 138315f081de2c8ac7deadf5d938b458b20732230cd9Steve Naroff 1384fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// SynthCountByEnumWithState - To print: 1385fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// ((unsigned int (*) 1386fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// (id, SEL, struct __objcFastEnumerationState *, id *, unsigned int)) 13871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// (void *)objc_msgSend)((id)l_collection, 1388fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// sel_registerName( 13891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// "countByEnumeratingWithState:objects:count:"), 13901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// &enumState, 1391108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian/// (id *)__rw_items, (unsigned int)16) 1392fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// 1393fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroffvoid RewriteObjC::SynthCountByEnumWithState(std::string &buf) { 1394fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf += "((unsigned int (*) (id, SEL, struct __objcFastEnumerationState *, " 1395fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff "id *, unsigned int))(void *)objc_msgSend)"; 1396fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf += "\n\t\t"; 1397fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf += "((id)l_collection,\n\t\t"; 1398fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf += "sel_registerName(\"countByEnumeratingWithState:objects:count:\"),"; 1399fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf += "\n\t\t"; 1400fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf += "&enumState, " 1401108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian "(id *)__rw_items, (unsigned int)16)"; 1402fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff} 1403b42f8415bcfb84c208fd577458ce1bbc2cd800feSteve Naroff 1404fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// RewriteBreakStmt - Rewrite for a break-stmt inside an ObjC2's foreach 1405fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// statement to exit to its outer synthesized loop. 1406fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// 1407fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve NaroffStmt *RewriteObjC::RewriteBreakStmt(BreakStmt *S) { 1408fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff if (Stmts.empty() || !isa<ObjCForCollectionStmt>(Stmts.back())) 1409fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff return S; 1410fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff // replace break with goto __break_label 1411fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff std::string buf; 14121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1413fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff SourceLocation startLoc = S->getLocStart(); 1414fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf = "goto __break_label_"; 1415fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf += utostr(ObjCBcLabelNo.back()); 1416d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, strlen("break"), buf); 14172bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff 14186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 1419fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff} 1420a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian 1421fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// RewriteContinueStmt - Rewrite for a continue-stmt inside an ObjC2's foreach 1422fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// statement to continue with its inner synthesized loop. 1423fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff/// 1424fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve NaroffStmt *RewriteObjC::RewriteContinueStmt(ContinueStmt *S) { 1425fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff if (Stmts.empty() || !isa<ObjCForCollectionStmt>(Stmts.back())) 1426fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff return S; 1427fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff // replace continue with goto __continue_label 1428fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff std::string buf; 14291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1430fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff SourceLocation startLoc = S->getLocStart(); 1431fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf = "goto __continue_label_"; 1432fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff buf += utostr(ObjCBcLabelNo.back()); 1433d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, strlen("continue"), buf); 14341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14356bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 1436e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian} 1437e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian 1438a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian/// RewriteObjCForCollectionStmt - Rewriter for ObjC2's foreach statement. 143910d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// It rewrites: 144010d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// for ( type elem in collection) { stmts; } 14411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 144210d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// Into: 144310d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// { 14441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// type elem; 144533b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian/// struct __objcFastEnumerationState enumState = { 0 }; 1446108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian/// id __rw_items[16]; 144733b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian/// id l_collection = (id)collection; 14481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// unsigned long limit = [l_collection countByEnumeratingWithState:&enumState 1449108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian/// objects:__rw_items count:16]; 145010d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// if (limit) { 145110d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// unsigned long startMutations = *enumState.mutationsPtr; 145210d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// do { 145310d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// unsigned long counter = 0; 145410d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// do { 14551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// if (startMutations != *enumState.mutationsPtr) 145633b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian/// objc_enumerationMutation(l_collection); 145788f50f31d84185827a8f765dd611134bcaface7bFariborz Jahanian/// elem = (type)enumState.itemsPtr[counter++]; 145810d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// stmts; 1459e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian/// __continue_label: ; 146010d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// } while (counter < limit); 14611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// } while (limit = [l_collection countByEnumeratingWithState:&enumState 1462108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian/// objects:__rw_items count:16]); 146333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian/// elem = nil; 1464e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian/// __break_label: ; 146510d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// } 146610d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// else 146710d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// elem = nil; 146810d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// } 146910d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian/// 1470b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffStmt *RewriteObjC::RewriteObjCForCollectionStmt(ObjCForCollectionStmt *S, 1471338d1e2ced8037b71d91fb319631846917d0cedaChris Lattner SourceLocation OrigEnd) { 1472e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian assert(!Stmts.empty() && "ObjCForCollectionStmt - Statement stack empty"); 14731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isa<ObjCForCollectionStmt>(Stmts.back()) && 1474e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian "ObjCForCollectionStmt Statement stack mismatch"); 14751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!ObjCBcLabelNo.empty() && 1476e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian "ObjCForCollectionStmt - Label No stack empty"); 14771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 147833b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian SourceLocation startLoc = S->getLocStart(); 147933b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian const char *startBuf = SM->getCharacterData(startLoc); 14805f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner StringRef elementName; 148188f50f31d84185827a8f765dd611134bcaface7bFariborz Jahanian std::string elementTypeAsString; 148233b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian std::string buf; 148333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf = "\n{\n\t"; 148433b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian if (DeclStmt *DS = dyn_cast<DeclStmt>(S->getElement())) { 148533b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // type elem; 14867e24e82a70a2c681f4291a3397bcd1e1005f251aChris Lattner NamedDecl* D = cast<NamedDecl>(DS->getSingleDecl()); 14871ed8e2a39456d064a346a6a5c2f6bd53e6d57345Ted Kremenek QualType ElementType = cast<ValueDecl>(D)->getType(); 1488e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff if (ElementType->isObjCQualifiedIdType() || 1489e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff ElementType->isObjCQualifiedInterfaceType()) 1490e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff // Simply use 'id' for all qualified types. 1491e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff elementTypeAsString = "id"; 1492e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff else 149330c42404202d2e2512e51efc6066bd614cfdb5a4Douglas Gregor elementTypeAsString = ElementType.getAsString(Context->getPrintingPolicy()); 149488f50f31d84185827a8f765dd611134bcaface7bFariborz Jahanian buf += elementTypeAsString; 149533b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += " "; 14964087f27e5416c799bcb6be072f905be752acb61cDaniel Dunbar elementName = D->getName(); 149733b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += elementName; 149833b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += ";\n\t"; 149933b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian } 150006767518f56cc7ed2a1ae4a37434ad9bdd7890beChris Lattner else { 150106767518f56cc7ed2a1ae4a37434ad9bdd7890beChris Lattner DeclRefExpr *DR = cast<DeclRefExpr>(S->getElement()); 15024087f27e5416c799bcb6be072f905be752acb61cDaniel Dunbar elementName = DR->getDecl()->getName(); 1503e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff ValueDecl *VD = cast<ValueDecl>(DR->getDecl()); 1504e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff if (VD->getType()->isObjCQualifiedIdType() || 1505e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff VD->getType()->isObjCQualifiedInterfaceType()) 1506e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff // Simply use 'id' for all qualified types. 1507e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff elementTypeAsString = "id"; 1508e89b8e7946155db1a3bbb1e22addd5d9d2a904dfSteve Naroff else 150930c42404202d2e2512e51efc6066bd614cfdb5a4Douglas Gregor elementTypeAsString = VD->getType().getAsString(Context->getPrintingPolicy()); 151088f50f31d84185827a8f765dd611134bcaface7bFariborz Jahanian } 15111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 151233b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // struct __objcFastEnumerationState enumState = { 0 }; 151333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "struct __objcFastEnumerationState enumState = { 0 };\n\t"; 1514108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian // id __rw_items[16]; 1515108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian buf += "id __rw_items[16];\n\t"; 151633b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // id l_collection = (id) 151733b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "id l_collection = (id)"; 15187571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian // Find start location of 'collection' the hard way! 15197571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian const char *startCollectionBuf = startBuf; 15207571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian startCollectionBuf += 3; // skip 'for' 15217571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian startCollectionBuf = strchr(startCollectionBuf, '('); 15227571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian startCollectionBuf++; // skip '(' 15237571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian // find 'in' and skip it. 15247571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian while (*startCollectionBuf != ' ' || 15257571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian *(startCollectionBuf+1) != 'i' || *(startCollectionBuf+2) != 'n' || 15267571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian (*(startCollectionBuf+3) != ' ' && 15277571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian *(startCollectionBuf+3) != '[' && *(startCollectionBuf+3) != '(')) 15287571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian startCollectionBuf++; 15297571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian startCollectionBuf += 3; 15301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Replace: "for (type element in" with string constructed thus far. 1532d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, startCollectionBuf - startBuf, buf); 153333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // Replace ')' in for '(' type elem in collection ')' with ';' 15347571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian SourceLocation rightParenLoc = S->getRParenLoc(); 15357571228ec9b31de7733ae96352ee4eaa8afcf2b5Fariborz Jahanian const char *rparenBuf = SM->getCharacterData(rightParenLoc); 1536a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation lparenLoc = startLoc.getLocWithOffset(rparenBuf-startBuf); 153733b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf = ";\n\t"; 15381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 153933b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // unsigned long limit = [l_collection countByEnumeratingWithState:&enumState 1540108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian // objects:__rw_items count:16]; 154133b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // which is synthesized into: 15421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // unsigned int limit = 154333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // ((unsigned int (*) 154433b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // (id, SEL, struct __objcFastEnumerationState *, id *, unsigned int)) 15451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (void *)objc_msgSend)((id)l_collection, 154633b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // sel_registerName( 15471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // "countByEnumeratingWithState:objects:count:"), 15481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // (struct __objcFastEnumerationState *)&state, 1549108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian // (id *)__rw_items, (unsigned int)16); 155033b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "unsigned long limit =\n\t\t"; 155133b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian SynthCountByEnumWithState(buf); 155233b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += ";\n\t"; 155333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// if (limit) { 155433b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// unsigned long startMutations = *enumState.mutationsPtr; 155533b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// do { 155633b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// unsigned long counter = 0; 155733b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// do { 15581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// if (startMutations != *enumState.mutationsPtr) 155933b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// objc_enumerationMutation(l_collection); 156088f50f31d84185827a8f765dd611134bcaface7bFariborz Jahanian /// elem = (type)enumState.itemsPtr[counter++]; 156133b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "if (limit) {\n\t"; 156233b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "unsigned long startMutations = *enumState.mutationsPtr;\n\t"; 156333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "do {\n\t\t"; 156433b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "unsigned long counter = 0;\n\t\t"; 156533b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "do {\n\t\t\t"; 156633b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "if (startMutations != *enumState.mutationsPtr)\n\t\t\t\t"; 156733b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "objc_enumerationMutation(l_collection);\n\t\t\t"; 156833b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += elementName; 156988f50f31d84185827a8f765dd611134bcaface7bFariborz Jahanian buf += " = ("; 157088f50f31d84185827a8f765dd611134bcaface7bFariborz Jahanian buf += elementTypeAsString; 157188f50f31d84185827a8f765dd611134bcaface7bFariborz Jahanian buf += ")enumState.itemsPtr[counter++];"; 157233b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // Replace ')' in for '(' type elem in collection ')' with all of these. 1573d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(lparenLoc, 1, buf); 15741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1575e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian /// __continue_label: ; 157633b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// } while (counter < limit); 15771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// } while (limit = [l_collection countByEnumeratingWithState:&enumState 1578108fb14563f60f895481e2236bfdcea10d1536fbFariborz Jahanian /// objects:__rw_items count:16]); 157933b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// elem = nil; 1580e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian /// __break_label: ; 158133b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// } 158233b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// else 158333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// elem = nil; 158433b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian /// } 15851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 1586e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian buf = ";\n\t"; 1587e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian buf += "__continue_label_"; 1588e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian buf += utostr(ObjCBcLabelNo.back()); 1589e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian buf += ": ;"; 1590e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian buf += "\n\t\t"; 159133b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "} while (counter < limit);\n\t"; 159233b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "} while (limit = "; 159333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian SynthCountByEnumWithState(buf); 159433b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += ");\n\t"; 159533b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += elementName; 159665b0aa5d3973e07c8c4449ef2b81c389fd48229aFariborz Jahanian buf += " = (("; 159765b0aa5d3973e07c8c4449ef2b81c389fd48229aFariborz Jahanian buf += elementTypeAsString; 159865b0aa5d3973e07c8c4449ef2b81c389fd48229aFariborz Jahanian buf += ")0);\n\t"; 1599e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian buf += "__break_label_"; 1600e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian buf += utostr(ObjCBcLabelNo.back()); 1601e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian buf += ": ;\n\t"; 160233b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "}\n\t"; 160333b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "else\n\t\t"; 160433b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += elementName; 160565b0aa5d3973e07c8c4449ef2b81c389fd48229aFariborz Jahanian buf += " = (("; 160665b0aa5d3973e07c8c4449ef2b81c389fd48229aFariborz Jahanian buf += elementTypeAsString; 160765b0aa5d3973e07c8c4449ef2b81c389fd48229aFariborz Jahanian buf += ")0);\n\t"; 160833b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian buf += "}\n"; 16091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161033b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian // Insert all these *after* the statement body. 1611d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl // FIXME: If this should support Obj-C++, support CXXTryStmt 1612600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff if (isa<CompoundStmt>(S->getBody())) { 1613a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation endBodyLoc = OrigEnd.getLocWithOffset(1); 1614d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(endBodyLoc, buf); 1615600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff } else { 1616600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff /* Need to treat single statements specially. For example: 1617600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff * 1618600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff * for (A *a in b) if (stuff()) break; 1619600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff * for (A *a in b) xxxyy; 1620600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff * 1621600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff * The following code simply scans ahead to the semi to find the actual end. 1622600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff */ 1623600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff const char *stmtBuf = SM->getCharacterData(OrigEnd); 1624600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff const char *semiBuf = strchr(stmtBuf, ';'); 1625600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff assert(semiBuf && "Can't find ';'"); 1626a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation endBodyLoc = OrigEnd.getLocWithOffset(semiBuf-stmtBuf+1); 1627d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(endBodyLoc, buf); 1628600e4e8c358fd39e70f3313b7f1bfa0848957597Steve Naroff } 1629e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian Stmts.pop_back(); 1630e8d1c0579404442a87818506bb0e742d0f52d5bfFariborz Jahanian ObjCBcLabelNo.pop_back(); 16316bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 163210d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian} 163310d24f062ee8c83823199191ccdba452c7f9ac24Fariborz Jahanian 16341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// RewriteObjCSynchronizedStmt - 1635a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian/// This routine rewrites @synchronized(expr) stmt; 1636a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian/// into: 1637a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian/// objc_sync_enter(expr); 1638a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian/// @try stmt @finally { objc_sync_exit(expr); } 1639a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian/// 1640b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffStmt *RewriteObjC::RewriteObjCSynchronizedStmt(ObjCAtSynchronizedStmt *S) { 1641a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian // Get the start location and compute the semi location. 1642a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian SourceLocation startLoc = S->getLocStart(); 1643a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian const char *startBuf = SM->getCharacterData(startLoc); 16441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1645a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian assert((*startBuf == '@') && "bogus @synchronized location"); 16461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump std::string buf; 16483498cc9793487a5ad51a5a050be85bd550775eccSteve Naroff buf = "objc_sync_enter((id)"; 16493498cc9793487a5ad51a5a050be85bd550775eccSteve Naroff const char *lparenBuf = startBuf; 16503498cc9793487a5ad51a5a050be85bd550775eccSteve Naroff while (*lparenBuf != '(') lparenBuf++; 1651d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, lparenBuf-startBuf+1, buf); 16521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We can't use S->getSynchExpr()->getLocEnd() to find the end location, since 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // the sync expression is typically a message expression that's already 1654c7089f1be946f3ca6e59596f0e0f92d96136e4c8Steve Naroff // been rewritten! (which implies the SourceLocation's are invalid). 1655c7089f1be946f3ca6e59596f0e0f92d96136e4c8Steve Naroff SourceLocation endLoc = S->getSynchBody()->getLocStart(); 1656a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian const char *endBuf = SM->getCharacterData(endLoc); 1657c7089f1be946f3ca6e59596f0e0f92d96136e4c8Steve Naroff while (*endBuf != ')') endBuf--; 1658a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation rparenLoc = startLoc.getLocWithOffset(endBuf-startBuf); 1659a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf = ");\n"; 1660a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian // declare a new scope with two variables, _stack and _rethrow. 1661a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += "/* @try scope begin */ \n{ struct _objc_exception_data {\n"; 1662a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += "int buf[18/*32-bit i386*/];\n"; 1663a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += "char *pointers[4];} _stack;\n"; 1664a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += "id volatile _rethrow = 0;\n"; 1665a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += "objc_exception_try_enter(&_stack);\n"; 1666a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += "if (!_setjmp(_stack.buf)) /* @try block continue */\n"; 1667d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(rparenLoc, 1, buf); 1668a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian startLoc = S->getSynchBody()->getLocEnd(); 1669a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian startBuf = SM->getCharacterData(startLoc); 16701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1671c7089f1be946f3ca6e59596f0e0f92d96136e4c8Steve Naroff assert((*startBuf == '}') && "bogus @synchronized block"); 1672a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian SourceLocation lastCurlyLoc = startLoc; 1673a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf = "}\nelse {\n"; 1674a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += " _rethrow = objc_exception_extract(&_stack);\n"; 1675621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff buf += "}\n"; 1676621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff buf += "{ /* implicit finally clause */\n"; 1677a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += " if (!_rethrow) objc_exception_try_exit(&_stack);\n"; 1678b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1679b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff std::string syncBuf; 1680b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff syncBuf += " objc_sync_exit("; 16811d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall 16821d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall Expr *syncExpr = S->getSynchExpr(); 16831d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CastKind CK = syncExpr->getType()->isObjCObjectPointerType() 16841d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall ? CK_BitCast : 16851d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall syncExpr->getType()->isBlockPointerType() 16861d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall ? CK_BlockPointerToObjCPointerCast 16871d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall : CK_CPointerToObjCPointerCast; 16881d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall syncExpr = NoTypeInfoCStyleCastExpr(Context, Context->getObjCIdType(), 16891d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK, syncExpr); 1690a95d3750441ac8ad03e36af8e6e74039c9a3109dTed Kremenek std::string syncExprBufS; 1691a95d3750441ac8ad03e36af8e6e74039c9a3109dTed Kremenek llvm::raw_string_ostream syncExprBuf(syncExprBufS); 1692c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines assert(syncExpr != nullptr && "Expected non-null Expr"); 16936bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines syncExpr->printPretty(syncExprBuf, nullptr, PrintingPolicy(LangOpts)); 1694b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff syncBuf += syncExprBuf.str(); 1695b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff syncBuf += ");"; 1696b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1697b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff buf += syncBuf; 1698b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff buf += "\n if (_rethrow) objc_exception_throw(_rethrow);\n"; 1699a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += "}\n"; 1700a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian buf += "}"; 17011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1702d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(lastCurlyLoc, 1, buf); 1703b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1704b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff bool hasReturns = false; 1705b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff HasReturnStmts(S->getSynchBody(), hasReturns); 1706b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff if (hasReturns) 1707b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff RewriteSyncReturnStmts(S->getSynchBody(), syncBuf); 1708b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 17096bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 1710a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian} 1711a0f55792409289d1d343023fa8292cff6355e538Fariborz Jahanian 1712b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroffvoid RewriteObjC::WarnAboutReturnGotoStmts(Stmt *S) 1713b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff{ 17148c56515a0c61b73fc2f02cc96dc3e37650d89d45Steve Naroff // Perform a bottom up traversal of all children. 17157502c1d3ce8bb97bcc4f7bebef507040bd93b26fJohn McCall for (Stmt::child_range CI = S->children(); CI; ++CI) 17168c56515a0c61b73fc2f02cc96dc3e37650d89d45Steve Naroff if (*CI) 1717b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff WarnAboutReturnGotoStmts(*CI); 17188c56515a0c61b73fc2f02cc96dc3e37650d89d45Steve Naroff 1719b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff if (isa<ReturnStmt>(S) || isa<GotoStmt>(S)) { 17201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diags.Report(Context->getFullLoc(S->getLocStart()), 17218c56515a0c61b73fc2f02cc96dc3e37650d89d45Steve Naroff TryFinallyContainsReturnDiag); 17228c56515a0c61b73fc2f02cc96dc3e37650d89d45Steve Naroff } 17238c56515a0c61b73fc2f02cc96dc3e37650d89d45Steve Naroff return; 17248c56515a0c61b73fc2f02cc96dc3e37650d89d45Steve Naroff} 17258c56515a0c61b73fc2f02cc96dc3e37650d89d45Steve Naroff 1726b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroffvoid RewriteObjC::HasReturnStmts(Stmt *S, bool &hasReturns) 1727b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff{ 1728b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff // Perform a bottom up traversal of all children. 17297502c1d3ce8bb97bcc4f7bebef507040bd93b26fJohn McCall for (Stmt::child_range CI = S->children(); CI; ++CI) 1730b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff if (*CI) 1731b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff HasReturnStmts(*CI, hasReturns); 1732b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1733b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff if (isa<ReturnStmt>(S)) 1734b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff hasReturns = true; 1735b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff return; 1736b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff} 1737b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1738b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroffvoid RewriteObjC::RewriteTryReturnStmts(Stmt *S) { 1739b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff // Perform a bottom up traversal of all children. 17407502c1d3ce8bb97bcc4f7bebef507040bd93b26fJohn McCall for (Stmt::child_range CI = S->children(); CI; ++CI) 1741b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff if (*CI) { 1742b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff RewriteTryReturnStmts(*CI); 1743b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff } 1744b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff if (isa<ReturnStmt>(S)) { 1745b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff SourceLocation startLoc = S->getLocStart(); 1746b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff const char *startBuf = SM->getCharacterData(startLoc); 1747b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1748b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff const char *semiBuf = strchr(startBuf, ';'); 1749b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff assert((*semiBuf == ';') && "RewriteTryReturnStmts: can't find ';'"); 1750a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation onePastSemiLoc = startLoc.getLocWithOffset(semiBuf-startBuf+1); 1751b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1752b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff std::string buf; 1753b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff buf = "{ objc_exception_try_exit(&_stack); return"; 1754b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1755d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, 6, buf); 1756d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(onePastSemiLoc, "}"); 1757b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff } 1758b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff return; 1759b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff} 1760b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1761b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroffvoid RewriteObjC::RewriteSyncReturnStmts(Stmt *S, std::string syncExitBuf) { 1762b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff // Perform a bottom up traversal of all children. 17637502c1d3ce8bb97bcc4f7bebef507040bd93b26fJohn McCall for (Stmt::child_range CI = S->children(); CI; ++CI) 1764b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff if (*CI) { 1765b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff RewriteSyncReturnStmts(*CI, syncExitBuf); 1766b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff } 1767b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff if (isa<ReturnStmt>(S)) { 1768b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff SourceLocation startLoc = S->getLocStart(); 1769b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff const char *startBuf = SM->getCharacterData(startLoc); 1770b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1771b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff const char *semiBuf = strchr(startBuf, ';'); 1772b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff assert((*semiBuf == ';') && "RewriteSyncReturnStmts: can't find ';'"); 1773a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation onePastSemiLoc = startLoc.getLocWithOffset(semiBuf-startBuf+1); 1774b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1775b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff std::string buf; 1776b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff buf = "{ objc_exception_try_exit(&_stack);"; 1777b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff buf += syncExitBuf; 1778b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff buf += " return"; 1779b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1780d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, 6, buf); 1781d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(onePastSemiLoc, "}"); 1782b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff } 1783b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff return; 1784b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff} 1785b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1786b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffStmt *RewriteObjC::RewriteObjCTryStmt(ObjCAtTryStmt *S) { 17877573098b83e780d1c5bea13b384b610d8f155676Steve Naroff // Get the start location and compute the semi location. 17887573098b83e780d1c5bea13b384b610d8f155676Steve Naroff SourceLocation startLoc = S->getLocStart(); 17897573098b83e780d1c5bea13b384b610d8f155676Steve Naroff const char *startBuf = SM->getCharacterData(startLoc); 17901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17917573098b83e780d1c5bea13b384b610d8f155676Steve Naroff assert((*startBuf == '@') && "bogus @try location"); 17927573098b83e780d1c5bea13b384b610d8f155676Steve Naroff 17937573098b83e780d1c5bea13b384b610d8f155676Steve Naroff std::string buf; 17947573098b83e780d1c5bea13b384b610d8f155676Steve Naroff // declare a new scope with two variables, _stack and _rethrow. 17957573098b83e780d1c5bea13b384b610d8f155676Steve Naroff buf = "/* @try scope begin */ { struct _objc_exception_data {\n"; 17967573098b83e780d1c5bea13b384b610d8f155676Steve Naroff buf += "int buf[18/*32-bit i386*/];\n"; 17977573098b83e780d1c5bea13b384b610d8f155676Steve Naroff buf += "char *pointers[4];} _stack;\n"; 17987573098b83e780d1c5bea13b384b610d8f155676Steve Naroff buf += "id volatile _rethrow = 0;\n"; 17997573098b83e780d1c5bea13b384b610d8f155676Steve Naroff buf += "objc_exception_try_enter(&_stack);\n"; 180021867b1188ae19b2834c155b21e97c39ed1b9770Steve Naroff buf += "if (!_setjmp(_stack.buf)) /* @try block continue */\n"; 18017573098b83e780d1c5bea13b384b610d8f155676Steve Naroff 1802d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, 4, buf); 18031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18047573098b83e780d1c5bea13b384b610d8f155676Steve Naroff startLoc = S->getTryBody()->getLocEnd(); 18057573098b83e780d1c5bea13b384b610d8f155676Steve Naroff startBuf = SM->getCharacterData(startLoc); 18067573098b83e780d1c5bea13b384b610d8f155676Steve Naroff 18077573098b83e780d1c5bea13b384b610d8f155676Steve Naroff assert((*startBuf == '}') && "bogus @try block"); 18081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1809c9ba172447f2e2fe938ae03c3b16b91bda5b4dc3Steve Naroff SourceLocation lastCurlyLoc = startLoc; 18108f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor if (S->getNumCatchStmts()) { 1811a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis startLoc = startLoc.getLocWithOffset(1); 1812c9ba172447f2e2fe938ae03c3b16b91bda5b4dc3Steve Naroff buf = " /* @catch begin */ else {\n"; 1813c9ba172447f2e2fe938ae03c3b16b91bda5b4dc3Steve Naroff buf += " id _caught = objc_exception_extract(&_stack);\n"; 1814c9ba172447f2e2fe938ae03c3b16b91bda5b4dc3Steve Naroff buf += " objc_exception_try_enter (&_stack);\n"; 1815c9ba172447f2e2fe938ae03c3b16b91bda5b4dc3Steve Naroff buf += " if (_setjmp(_stack.buf))\n"; 1816c9ba172447f2e2fe938ae03c3b16b91bda5b4dc3Steve Naroff buf += " _rethrow = objc_exception_extract(&_stack);\n"; 1817c9ba172447f2e2fe938ae03c3b16b91bda5b4dc3Steve Naroff buf += " else { /* @catch continue */"; 18181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1819d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(startLoc, buf); 18208bd3dc64d28bdb3b263838a12aca25587bce661bSteve Naroff } else { /* no catch list */ 18218bd3dc64d28bdb3b263838a12aca25587bce661bSteve Naroff buf = "}\nelse {\n"; 18228bd3dc64d28bdb3b263838a12aca25587bce661bSteve Naroff buf += " _rethrow = objc_exception_extract(&_stack);\n"; 18238bd3dc64d28bdb3b263838a12aca25587bce661bSteve Naroff buf += "}"; 1824d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(lastCurlyLoc, 1, buf); 1825c9ba172447f2e2fe938ae03c3b16b91bda5b4dc3Steve Naroff } 18266bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Stmt *lastCatchBody = nullptr; 18278f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor for (unsigned I = 0, N = S->getNumCatchStmts(); I != N; ++I) { 18288f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor ObjCAtCatchStmt *Catch = S->getCatchStmt(I); 1829c00d8e18ad3d903acfeb5d05163ce90713066a3fDouglas Gregor VarDecl *catchDecl = Catch->getCatchParamDecl(); 18307573098b83e780d1c5bea13b384b610d8f155676Steve Naroff 18318f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor if (I == 0) 18327573098b83e780d1c5bea13b384b610d8f155676Steve Naroff buf = "if ("; // we are generating code for the first catch clause 18337573098b83e780d1c5bea13b384b610d8f155676Steve Naroff else 18347573098b83e780d1c5bea13b384b610d8f155676Steve Naroff buf = "else if ("; 18358f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor startLoc = Catch->getLocStart(); 18367573098b83e780d1c5bea13b384b610d8f155676Steve Naroff startBuf = SM->getCharacterData(startLoc); 18371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18387573098b83e780d1c5bea13b384b610d8f155676Steve Naroff assert((*startBuf == '@') && "bogus @catch location"); 18391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18407573098b83e780d1c5bea13b384b610d8f155676Steve Naroff const char *lParenLoc = strchr(startBuf, '('); 18417573098b83e780d1c5bea13b384b610d8f155676Steve Naroff 18428f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor if (Catch->hasEllipsis()) { 1843e12e69223ec279e89ac681023d42184b115e0068Steve Naroff // Now rewrite the body... 18448f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor lastCatchBody = Catch->getCatchBody(); 1845e12e69223ec279e89ac681023d42184b115e0068Steve Naroff SourceLocation bodyLoc = lastCatchBody->getLocStart(); 1846e12e69223ec279e89ac681023d42184b115e0068Steve Naroff const char *bodyBuf = SM->getCharacterData(bodyLoc); 18478f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor assert(*SM->getCharacterData(Catch->getRParenLoc()) == ')' && 184806767518f56cc7ed2a1ae4a37434ad9bdd7890beChris Lattner "bogus @catch paren location"); 1849e12e69223ec279e89ac681023d42184b115e0068Steve Naroff assert((*bodyBuf == '{') && "bogus @catch body location"); 18501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1851e12e69223ec279e89ac681023d42184b115e0068Steve Naroff buf += "1) { id _tmp = _caught;"; 1852d7407dc92c7d19cafce429e7e1cf9819d3fc0b92Daniel Dunbar Rewrite.ReplaceText(startLoc, bodyBuf-startBuf+1, buf); 18537ba138abd329e591a8f6d5001f60dd7082f71b3bSteve Naroff } else if (catchDecl) { 18547ba138abd329e591a8f6d5001f60dd7082f71b3bSteve Naroff QualType t = catchDecl->getType(); 1855a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (t == Context->getObjCIdType()) { 18567573098b83e780d1c5bea13b384b610d8f155676Steve Naroff buf += "1) { "; 1857d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, lParenLoc-startBuf+1, buf); 1858506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall } else if (const ObjCObjectPointerType *Ptr = 1859506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall t->getAs<ObjCObjectPointerType>()) { 1860506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall // Should be a pointer to a class. 1861506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall ObjCInterfaceDecl *IDecl = Ptr->getObjectType()->getInterface(); 1862506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall if (IDecl) { 186321867b1188ae19b2834c155b21e97c39ed1b9770Steve Naroff buf += "objc_exception_match((struct objc_class *)objc_getClass(\""; 1864506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall buf += IDecl->getNameAsString(); 186521867b1188ae19b2834c155b21e97c39ed1b9770Steve Naroff buf += "\"), (struct objc_object *)_caught)) { "; 1866d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, lParenLoc-startBuf+1, buf); 18677573098b83e780d1c5bea13b384b610d8f155676Steve Naroff } 18687573098b83e780d1c5bea13b384b610d8f155676Steve Naroff } 18697573098b83e780d1c5bea13b384b610d8f155676Steve Naroff // Now rewrite the body... 18708f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor lastCatchBody = Catch->getCatchBody(); 18718f5e3dd32e443768d9dbbad7191e123e6733750cDouglas Gregor SourceLocation rParenLoc = Catch->getRParenLoc(); 18727573098b83e780d1c5bea13b384b610d8f155676Steve Naroff SourceLocation bodyLoc = lastCatchBody->getLocStart(); 18737573098b83e780d1c5bea13b384b610d8f155676Steve Naroff const char *bodyBuf = SM->getCharacterData(bodyLoc); 18747573098b83e780d1c5bea13b384b610d8f155676Steve Naroff const char *rParenBuf = SM->getCharacterData(rParenLoc); 18757573098b83e780d1c5bea13b384b610d8f155676Steve Naroff assert((*rParenBuf == ')') && "bogus @catch paren location"); 18767573098b83e780d1c5bea13b384b610d8f155676Steve Naroff assert((*bodyBuf == '{') && "bogus @catch body location"); 18771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Here we replace ") {" with "= _caught;" (which initializes and 18797573098b83e780d1c5bea13b384b610d8f155676Steve Naroff // declares the @catch parameter). 1880d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(rParenLoc, bodyBuf-rParenBuf+1, " = _caught;"); 18817ba138abd329e591a8f6d5001f60dd7082f71b3bSteve Naroff } else { 1882b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("@catch rewrite bug"); 18832bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff } 18847573098b83e780d1c5bea13b384b610d8f155676Steve Naroff } 18857573098b83e780d1c5bea13b384b610d8f155676Steve Naroff // Complete the catch list... 18867573098b83e780d1c5bea13b384b610d8f155676Steve Naroff if (lastCatchBody) { 18877573098b83e780d1c5bea13b384b610d8f155676Steve Naroff SourceLocation bodyLoc = lastCatchBody->getLocEnd(); 188806767518f56cc7ed2a1ae4a37434ad9bdd7890beChris Lattner assert(*SM->getCharacterData(bodyLoc) == '}' && 188906767518f56cc7ed2a1ae4a37434ad9bdd7890beChris Lattner "bogus @catch body location"); 18901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1891378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff // Insert the last (implicit) else clause *before* the right curly brace. 1892a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis bodyLoc = bodyLoc.getLocWithOffset(-1); 1893378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf = "} /* last catch end */\n"; 1894378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf += "else {\n"; 1895378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf += " _rethrow = _caught;\n"; 1896378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf += " objc_exception_try_exit(&_stack);\n"; 1897378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf += "} } /* @catch end */\n"; 1898378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff if (!S->getFinallyStmt()) 1899378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf += "}\n"; 1900d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(bodyLoc, buf); 19011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19027573098b83e780d1c5bea13b384b610d8f155676Steve Naroff // Set lastCurlyLoc 19037573098b83e780d1c5bea13b384b610d8f155676Steve Naroff lastCurlyLoc = lastCatchBody->getLocEnd(); 19047573098b83e780d1c5bea13b384b610d8f155676Steve Naroff } 1905a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCAtFinallyStmt *finalStmt = S->getFinallyStmt()) { 19067573098b83e780d1c5bea13b384b610d8f155676Steve Naroff startLoc = finalStmt->getLocStart(); 19077573098b83e780d1c5bea13b384b610d8f155676Steve Naroff startBuf = SM->getCharacterData(startLoc); 19087573098b83e780d1c5bea13b384b610d8f155676Steve Naroff assert((*startBuf == '@') && "bogus @finally start"); 19091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1910d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, 8, "/* @finally */"); 19111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19127573098b83e780d1c5bea13b384b610d8f155676Steve Naroff Stmt *body = finalStmt->getFinallyBody(); 19137573098b83e780d1c5bea13b384b610d8f155676Steve Naroff SourceLocation startLoc = body->getLocStart(); 19147573098b83e780d1c5bea13b384b610d8f155676Steve Naroff SourceLocation endLoc = body->getLocEnd(); 191506767518f56cc7ed2a1ae4a37434ad9bdd7890beChris Lattner assert(*SM->getCharacterData(startLoc) == '{' && 191606767518f56cc7ed2a1ae4a37434ad9bdd7890beChris Lattner "bogus @finally body location"); 19171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(*SM->getCharacterData(endLoc) == '}' && 191806767518f56cc7ed2a1ae4a37434ad9bdd7890beChris Lattner "bogus @finally body location"); 19191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1920a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis startLoc = startLoc.getLocWithOffset(1); 1921d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(startLoc, " if (!_rethrow) objc_exception_try_exit(&_stack);\n"); 1922a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis endLoc = endLoc.getLocWithOffset(-1); 1923d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(endLoc, " if (_rethrow) objc_exception_throw(_rethrow);\n"); 19241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19257573098b83e780d1c5bea13b384b610d8f155676Steve Naroff // Set lastCurlyLoc 19267573098b83e780d1c5bea13b384b610d8f155676Steve Naroff lastCurlyLoc = body->getLocEnd(); 19271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19288c56515a0c61b73fc2f02cc96dc3e37650d89d45Steve Naroff // Now check for any return/continue/go statements within the @try. 1929b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff WarnAboutReturnGotoStmts(S->getTryBody()); 1930378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff } else { /* no finally clause - make sure we synthesize an implicit one */ 1931378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf = "{ /* implicit finally clause */\n"; 1932378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf += " if (!_rethrow) objc_exception_try_exit(&_stack);\n"; 1933378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf += " if (_rethrow) objc_exception_throw(_rethrow);\n"; 1934378f47afeebe3fde2c17e78ae1cf42d2e3beeacfSteve Naroff buf += "}"; 1935d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(lastCurlyLoc, 1, buf); 1936b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff 1937b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff // Now check for any return/continue/go statements within the @try. 1938b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff // The implicit finally clause won't called if the @try contains any 1939b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff // jump statements. 1940b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff bool hasReturns = false; 1941b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff HasReturnStmts(S->getTryBody(), hasReturns); 1942b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff if (hasReturns) 1943b85e77af052ea495aa47edcce3b1ec8887e53873Steve Naroff RewriteTryReturnStmts(S->getTryBody()); 19447573098b83e780d1c5bea13b384b610d8f155676Steve Naroff } 19457573098b83e780d1c5bea13b384b610d8f155676Steve Naroff // Now emit the final closing curly brace... 1946a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis lastCurlyLoc = lastCurlyLoc.getLocWithOffset(1); 1947d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(lastCurlyLoc, " } /* @try scope end */\n"); 19486bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 1949909f02a69786e94d34d34fc8d4ea3e160bcff775Fariborz Jahanian} 1950909f02a69786e94d34d34fc8d4ea3e160bcff775Fariborz Jahanian 19511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// This can't be done with ReplaceStmt(S, ThrowExpr), since 19521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// the throw expression is typically a message expression that's already 19532bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff// been rewritten! (which implies the SourceLocation's are invalid). 1954b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffStmt *RewriteObjC::RewriteObjCThrowStmt(ObjCAtThrowStmt *S) { 19552bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff // Get the start location and compute the semi location. 19562bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff SourceLocation startLoc = S->getLocStart(); 19572bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff const char *startBuf = SM->getCharacterData(startLoc); 19581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19592bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff assert((*startBuf == '@') && "bogus @throw location"); 19602bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff 19612bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff std::string buf; 19622bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff /* void objc_exception_throw(id) __attribute__((noreturn)); */ 196320ebf8f15df48f27ce2bf7c1b3ae87565235600fSteve Naroff if (S->getThrowExpr()) 196420ebf8f15df48f27ce2bf7c1b3ae87565235600fSteve Naroff buf = "objc_exception_throw("; 196520ebf8f15df48f27ce2bf7c1b3ae87565235600fSteve Naroff else // add an implicit argument 196620ebf8f15df48f27ce2bf7c1b3ae87565235600fSteve Naroff buf = "objc_exception_throw(_caught"; 19671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19684ba0acbe835b12b3755d138f364cd67044d7322fSteve Naroff // handle "@ throw" correctly. 19694ba0acbe835b12b3755d138f364cd67044d7322fSteve Naroff const char *wBuf = strchr(startBuf, 'w'); 19704ba0acbe835b12b3755d138f364cd67044d7322fSteve Naroff assert((*wBuf == 'w') && "@throw: can't find 'w'"); 1971d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(startLoc, wBuf-startBuf+1, buf); 19721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19732bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff const char *semiBuf = strchr(startBuf, ';'); 19742bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff assert((*semiBuf == ';') && "@throw: can't find ';'"); 1975a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation semiLoc = startLoc.getLocWithOffset(semiBuf-startBuf); 1976d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(semiLoc, 1, ");"); 19776bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 19782bd03923398add1bcb10d40c283cb0eb8ade74daSteve Naroff} 1979909f02a69786e94d34d34fc8d4ea3e160bcff775Fariborz Jahanian 1980b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffStmt *RewriteObjC::RewriteAtEncode(ObjCEncodeExpr *Exp) { 198101c5748c29e75b29cab5fc7d8ad1b173b29c7ecfChris Lattner // Create a new string expression. 198285f9bceab1542aafff012d4d28e998f4ba16e362Anders Carlsson std::string StrEncoding; 19830d504c1da852e58ff802545c823ecff3b6c654b8Daniel Dunbar Context->getObjCEncodingForType(Exp->getEncodedType(), StrEncoding); 1984651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Expr *Replacement = getStringLiteral(StrEncoding); 1985dcbc5b0b0722282a0fdd829359fe0d7e22adb882Chris Lattner ReplaceStmt(Exp, Replacement); 19861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19870750618b0beacdc9b0a9e210a661e4746823ced7Chris Lattner // Replace this subexpr in the parent. 1988f2ad2c92720f0e25c032188783a1d6374155f03aFariborz Jahanian // delete Exp; leak for now, see RewritePropertyOrImplicitSetter() usage for more info. 1989e64b7771dca65d737dfc49b6137bd69fc1ff6bd2Chris Lattner return Replacement; 1990311ff02fae0392bee6abe7723cdf5a69b2899a47Chris Lattner} 1991311ff02fae0392bee6abe7723cdf5a69b2899a47Chris Lattner 1992b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffStmt *RewriteObjC::RewriteAtSelector(ObjCSelectorExpr *Exp) { 19931a9376408941d65c285ddad8a0f1a2ac518df344Steve Naroff if (!SelGetUidFunctionDecl) 19941a9376408941d65c285ddad8a0f1a2ac518df344Steve Naroff SynthSelGetUidFunctionDecl(); 1995b42f8415bcfb84c208fd577458ce1bbc2cd800feSteve Naroff assert(SelGetUidFunctionDecl && "Can't find sel_registerName() decl"); 1996b42f8415bcfb84c208fd577458ce1bbc2cd800feSteve Naroff // Create a call to sel_registerName("selName"). 19975f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Expr*, 8> SelExprs; 1998651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SelExprs.push_back(getStringLiteral(Exp->getSelector().getAsString())); 1999b42f8415bcfb84c208fd577458ce1bbc2cd800feSteve Naroff CallExpr *SelExp = SynthesizeCallToFunctionDecl(SelGetUidFunctionDecl, 2000b42f8415bcfb84c208fd577458ce1bbc2cd800feSteve Naroff &SelExprs[0], SelExprs.size()); 2001dcbc5b0b0722282a0fdd829359fe0d7e22adb882Chris Lattner ReplaceStmt(Exp, SelExp); 2002f2ad2c92720f0e25c032188783a1d6374155f03aFariborz Jahanian // delete Exp; leak for now, see RewritePropertyOrImplicitSetter() usage for more info. 2003b42f8415bcfb84c208fd577458ce1bbc2cd800feSteve Naroff return SelExp; 2004b42f8415bcfb84c208fd577458ce1bbc2cd800feSteve Naroff} 2005b42f8415bcfb84c208fd577458ce1bbc2cd800feSteve Naroff 2006b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffCallExpr *RewriteObjC::SynthesizeCallToFunctionDecl( 20071d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian FunctionDecl *FD, Expr **args, unsigned nargs, SourceLocation StartLoc, 20081d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian SourceLocation EndLoc) { 2009ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff // Get the type, we will need to reference it in a couple spots. 2010934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff QualType msgSendType = FD->getType(); 20111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2012ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff // Create a reference to the objc_msgSend() declaration. 2013f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr *DRE = new (Context) DeclRefExpr(FD, false, msgSendType, 2014f4b88a45902af1802a1cb42ba48b1c474474f228John McCall VK_LValue, SourceLocation()); 20151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2016ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff // Now, we cast the reference to a pointer to the objc_msgSend type. 2017f04da137288c48879a86e9e1d4014db8e28dbae1Chris Lattner QualType pToFunc = Context->getPointerType(msgSendType); 20186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ImplicitCastExpr *ICE = 2019a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall ImplicitCastExpr::Create(*Context, pToFunc, CK_FunctionToPointerDecay, 20206bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines DRE, nullptr, VK_RValue); 20211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2022183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = msgSendType->getAs<FunctionType>(); 20231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20241d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian CallExpr *Exp = 20253b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer new (Context) CallExpr(*Context, ICE, llvm::makeArrayRef(args, nargs), 2026f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall FT->getCallResultType(*Context), 2027f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, EndLoc); 20281d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian return Exp; 2029934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff} 2030934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff 2031d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroffstatic bool scanForProtocolRefs(const char *startBuf, const char *endBuf, 2032d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff const char *&startRef, const char *&endRef) { 2033d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff while (startBuf < endBuf) { 2034d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff if (*startBuf == '<') 2035d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff startRef = startBuf; // mark the start. 2036d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff if (*startBuf == '>') { 203732174826f58d38c20f376fe64ceac4a278133883Steve Naroff if (startRef && *startRef == '<') { 203832174826f58d38c20f376fe64ceac4a278133883Steve Naroff endRef = startBuf; // mark the end. 203932174826f58d38c20f376fe64ceac4a278133883Steve Naroff return true; 204032174826f58d38c20f376fe64ceac4a278133883Steve Naroff } 204132174826f58d38c20f376fe64ceac4a278133883Steve Naroff return false; 2042d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff } 2043d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff startBuf++; 2044d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff } 2045d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff return false; 2046d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff} 2047d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff 204861477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanianstatic void scanToNextArgument(const char *&argRef) { 204961477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian int angle = 0; 205061477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian while (*argRef != ')' && (*argRef != ',' || angle > 0)) { 205161477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian if (*argRef == '<') 205261477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian angle++; 205361477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian else if (*argRef == '>') 205461477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian angle--; 205561477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian argRef++; 205661477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian } 205761477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian assert(angle == 0 && "scanToNextArgument - bad protocol type syntax"); 205861477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian} 2059291e04b29669d6576e19e35555bbc3cadd2f6649Fariborz Jahanian 2060b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffbool RewriteObjC::needToScanForQualifiers(QualType T) { 206132132a08c0aecc316728d81e1d93726707fde14bFariborz Jahanian if (T->isObjCQualifiedIdType()) 206232132a08c0aecc316728d81e1d93726707fde14bFariborz Jahanian return true; 206384aa9464a4542b7b63d3b1f9953f9169ce536527Fariborz Jahanian if (const PointerType *PT = T->getAs<PointerType>()) { 206484aa9464a4542b7b63d3b1f9953f9169ce536527Fariborz Jahanian if (PT->getPointeeType()->isObjCQualifiedIdType()) 206584aa9464a4542b7b63d3b1f9953f9169ce536527Fariborz Jahanian return true; 206684aa9464a4542b7b63d3b1f9953f9169ce536527Fariborz Jahanian } 206784aa9464a4542b7b63d3b1f9953f9169ce536527Fariborz Jahanian if (T->isObjCObjectPointerType()) { 206884aa9464a4542b7b63d3b1f9953f9169ce536527Fariborz Jahanian T = T->getPointeeType(); 206984aa9464a4542b7b63d3b1f9953f9169ce536527Fariborz Jahanian return T->isObjCQualifiedInterfaceType(); 207084aa9464a4542b7b63d3b1f9953f9169ce536527Fariborz Jahanian } 207124f9cab9288368171caaef4bb18b95e4f6083f22Fariborz Jahanian if (T->isArrayType()) { 207224f9cab9288368171caaef4bb18b95e4f6083f22Fariborz Jahanian QualType ElemTy = Context->getBaseElementType(T); 207324f9cab9288368171caaef4bb18b95e4f6083f22Fariborz Jahanian return needToScanForQualifiers(ElemTy); 207424f9cab9288368171caaef4bb18b95e4f6083f22Fariborz Jahanian } 207584aa9464a4542b7b63d3b1f9953f9169ce536527Fariborz Jahanian return false; 2076d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff} 2077d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff 20784f95b750534f2111f28434b282bcbd5656002816Steve Naroffvoid RewriteObjC::RewriteObjCQualifiedInterfaceTypes(Expr *E) { 20794f95b750534f2111f28434b282bcbd5656002816Steve Naroff QualType Type = E->getType(); 20804f95b750534f2111f28434b282bcbd5656002816Steve Naroff if (needToScanForQualifiers(Type)) { 2081cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff SourceLocation Loc, EndLoc; 20821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2083cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff if (const CStyleCastExpr *ECE = dyn_cast<CStyleCastExpr>(E)) { 2084cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff Loc = ECE->getLParenLoc(); 2085cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff EndLoc = ECE->getRParenLoc(); 2086cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff } else { 2087cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff Loc = E->getLocStart(); 2088cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff EndLoc = E->getLocEnd(); 2089cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff } 2090cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff // This will defend against trying to rewrite synthesized expressions. 2091cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff if (Loc.isInvalid() || EndLoc.isInvalid()) 2092cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff return; 2093cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff 20944f95b750534f2111f28434b282bcbd5656002816Steve Naroff const char *startBuf = SM->getCharacterData(Loc); 2095cda658e90d7ffe0ece23d741ff82cf764108f66cSteve Naroff const char *endBuf = SM->getCharacterData(EndLoc); 20966bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const char *startRef = nullptr, *endRef = nullptr; 20974f95b750534f2111f28434b282bcbd5656002816Steve Naroff if (scanForProtocolRefs(startBuf, endBuf, startRef, endRef)) { 20984f95b750534f2111f28434b282bcbd5656002816Steve Naroff // Get the locations of the startRef, endRef. 2099a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation LessLoc = Loc.getLocWithOffset(startRef-startBuf); 2100a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation GreaterLoc = Loc.getLocWithOffset(endRef-startBuf+1); 21014f95b750534f2111f28434b282bcbd5656002816Steve Naroff // Comment out the protocol references. 2102d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(LessLoc, "/*"); 2103d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(GreaterLoc, "*/"); 21044f95b750534f2111f28434b282bcbd5656002816Steve Naroff } 21054f95b750534f2111f28434b282bcbd5656002816Steve Naroff } 21064f95b750534f2111f28434b282bcbd5656002816Steve Naroff} 21074f95b750534f2111f28434b282bcbd5656002816Steve Naroff 2108b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::RewriteObjCQualifiedInterfaceTypes(Decl *Dcl) { 210961477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian SourceLocation Loc; 211061477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian QualType Type; 21116bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const FunctionProtoType *proto = nullptr; 211261477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian if (VarDecl *VD = dyn_cast<VarDecl>(Dcl)) { 211361477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian Loc = VD->getLocation(); 211461477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian Type = VD->getType(); 211561477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian } 211661477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(Dcl)) { 211761477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian Loc = FD->getLocation(); 211861477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian // Check for ObjC 'id' and class types that have been adorned with protocol 211961477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian // information (id<p>, C<p>*). The protocol references need to be rewritten! 2120183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *funcType = FD->getType()->getAs<FunctionType>(); 212161477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian assert(funcType && "missing function type"); 212272564e73277e29f6db3305d1f27ba408abb7ed88Douglas Gregor proto = dyn_cast<FunctionProtoType>(funcType); 212361477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian if (!proto) 212461477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian return; 2125651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Type = proto->getReturnType(); 212661477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian } 21273d7e7865bd0863fcf36aee14d8911b785dde57ddSteve Naroff else if (FieldDecl *FD = dyn_cast<FieldDecl>(Dcl)) { 21283d7e7865bd0863fcf36aee14d8911b785dde57ddSteve Naroff Loc = FD->getLocation(); 21293d7e7865bd0863fcf36aee14d8911b785dde57ddSteve Naroff Type = FD->getType(); 21303d7e7865bd0863fcf36aee14d8911b785dde57ddSteve Naroff } 213161477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian else 2132e66894c3dea9aeab4403e67bf5baabc20da61cb3Fariborz Jahanian return; 21331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 213461477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian if (needToScanForQualifiers(Type)) { 2135d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff // Since types are unique, we need to scan the buffer. 21361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2137d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff const char *endBuf = SM->getCharacterData(Loc); 2138d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff const char *startBuf = endBuf; 21396cafbf2a678c95d4cdc09ecaa782319bbcf56944Steve Naroff while (*startBuf != ';' && *startBuf != '<' && startBuf != MainFileStart) 2140d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff startBuf--; // scan backward (from the decl location) for return type. 21416bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const char *startRef = nullptr, *endRef = nullptr; 2142d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff if (scanForProtocolRefs(startBuf, endBuf, startRef, endRef)) { 2143d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff // Get the locations of the startRef, endRef. 2144a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation LessLoc = Loc.getLocWithOffset(startRef-endBuf); 2145a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation GreaterLoc = Loc.getLocWithOffset(endRef-endBuf+1); 2146d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff // Comment out the protocol references. 2147d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(LessLoc, "/*"); 2148d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(GreaterLoc, "*/"); 2149d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff } 2150d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff } 215161477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian if (!proto) 215261477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian return; // most likely, was a variable 21539165ad378f8d25eb5c378a8e9540089afce421ffSteve Naroff // Now check arguments. 215461477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian const char *startBuf = SM->getCharacterData(Loc); 215561477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian const char *startFuncBuf = startBuf; 2156651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (unsigned i = 0; i < proto->getNumParams(); i++) { 2157651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (needToScanForQualifiers(proto->getParamType(i))) { 2158d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff // Since types are unique, we need to scan the buffer. 21591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2160d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff const char *endBuf = startBuf; 216161477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian // scan forward (from the decl location) for argument types. 216261477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian scanToNextArgument(endBuf); 21636bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const char *startRef = nullptr, *endRef = nullptr; 2164d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff if (scanForProtocolRefs(startBuf, endBuf, startRef, endRef)) { 2165d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff // Get the locations of the startRef, endRef. 21661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation LessLoc = 2167a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis Loc.getLocWithOffset(startRef-startFuncBuf); 21681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation GreaterLoc = 2169a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis Loc.getLocWithOffset(endRef-startFuncBuf+1); 2170d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff // Comment out the protocol references. 2171d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(LessLoc, "/*"); 2172d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(GreaterLoc, "*/"); 2173d5255f55ebe8803ee10b01589a64156e5e9cde5eSteve Naroff } 217461477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian startBuf = ++endBuf; 217561477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian } 217661477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian else { 2177aba49d10daaedbc9e8bf6f4c6bfbfa6ea668baa6Steve Naroff // If the function name is derived from a macro expansion, then the 2178aba49d10daaedbc9e8bf6f4c6bfbfa6ea668baa6Steve Naroff // argument buffer will not follow the name. Need to speak with Chris. 2179aba49d10daaedbc9e8bf6f4c6bfbfa6ea668baa6Steve Naroff while (*startBuf && *startBuf != ')' && *startBuf != ',') 218061477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian startBuf++; // scan forward (from the decl location) for argument types. 218161477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian startBuf++; 218261477f7a4ccd3ac785afd9708d77a53869a53a76Fariborz Jahanian } 21839165ad378f8d25eb5c378a8e9540089afce421ffSteve Naroff } 21849165ad378f8d25eb5c378a8e9540089afce421ffSteve Naroff} 21859165ad378f8d25eb5c378a8e9540089afce421ffSteve Naroff 21864c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanianvoid RewriteObjC::RewriteTypeOfDecl(VarDecl *ND) { 21874c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian QualType QT = ND->getType(); 21884c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian const Type* TypePtr = QT->getAs<Type>(); 21894c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian if (!isa<TypeOfExprType>(TypePtr)) 21904c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian return; 21914c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian while (isa<TypeOfExprType>(TypePtr)) { 21924c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian const TypeOfExprType *TypeOfExprTypePtr = cast<TypeOfExprType>(TypePtr); 21934c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian QT = TypeOfExprTypePtr->getUnderlyingExpr()->getType(); 21944c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian TypePtr = QT->getAs<Type>(); 21954c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian } 21964c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian // FIXME. This will not work for multiple declarators; as in: 21974c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian // __typeof__(a) b,c,d; 219830c42404202d2e2512e51efc6066bd614cfdb5a4Douglas Gregor std::string TypeAsString(QT.getAsString(Context->getPrintingPolicy())); 21994c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian SourceLocation DeclLoc = ND->getTypeSpecStartLoc(); 22004c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian const char *startBuf = SM->getCharacterData(DeclLoc); 22014c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian if (ND->getInit()) { 22024c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian std::string Name(ND->getNameAsString()); 22034c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian TypeAsString += " " + Name + " = "; 22044c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian Expr *E = ND->getInit(); 22054c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian SourceLocation startLoc; 22064c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian if (const CStyleCastExpr *ECE = dyn_cast<CStyleCastExpr>(E)) 22074c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian startLoc = ECE->getLParenLoc(); 22084c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian else 22094c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian startLoc = E->getLocStart(); 2210402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth startLoc = SM->getExpansionLoc(startLoc); 22114c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian const char *endBuf = SM->getCharacterData(startLoc); 2212d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(DeclLoc, endBuf-startBuf-1, TypeAsString); 22134c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian } 22144c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian else { 22154c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian SourceLocation X = ND->getLocEnd(); 2216402785357ab053dd53f4fdd858b9630a5e0f8badChandler Carruth X = SM->getExpansionLoc(X); 22174c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian const char *endBuf = SM->getCharacterData(X); 2218d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(DeclLoc, endBuf-startBuf-1, TypeAsString); 22194c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian } 22204c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian} 22214c863ef92c2b74572090da245c87e1487b0b596cFariborz Jahanian 2222a70711b296953bfe2fc17351f3908dcc417c404aFariborz Jahanian// SynthSelGetUidFunctionDecl - SEL sel_registerName(const char *str); 2223b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::SynthSelGetUidFunctionDecl() { 2224a70711b296953bfe2fc17351f3908dcc417c404aFariborz Jahanian IdentifierInfo *SelGetUidIdent = &Context->Idents.get("sel_registerName"); 22255f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 22260953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ArgTys.push_back(Context->getPointerType(Context->CharTy.withConst())); 2227e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType getFuncType = 2228bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose getSimpleFunctionType(Context->getObjCSelType(), ArgTys); 2229ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis SelGetUidFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 2230e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2231e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 22326bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SelGetUidIdent, getFuncType, 22336bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SC_Extern); 2234a70711b296953bfe2fc17351f3908dcc417c404aFariborz Jahanian} 2235a70711b296953bfe2fc17351f3908dcc417c404aFariborz Jahanian 2236b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::RewriteFunctionDecl(FunctionDecl *FD) { 223709b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff // declared in <objc/objc.h> 223851efe56116a6283ba707cfb8bf8b4e0b13cb41acDouglas Gregor if (FD->getIdentifier() && 22394087f27e5416c799bcb6be072f905be752acb61cDaniel Dunbar FD->getName() == "sel_registerName") { 224009b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff SelGetUidFunctionDecl = FD; 22419165ad378f8d25eb5c378a8e9540089afce421ffSteve Naroff return; 22429165ad378f8d25eb5c378a8e9540089afce421ffSteve Naroff } 2243a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek RewriteObjCQualifiedInterfaceTypes(FD); 224409b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff} 224509b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff 2246fa297fb29b38991c537a0ae90ff595102dcd21a9Daniel Dunbarvoid RewriteObjC::RewriteBlockPointerType(std::string& Str, QualType Type) { 224730c42404202d2e2512e51efc6066bd614cfdb5a4Douglas Gregor std::string TypeString(Type.getAsString(Context->getPrintingPolicy())); 224852b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian const char *argPtr = TypeString.c_str(); 224952b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian if (!strchr(argPtr, '^')) { 225052b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian Str += TypeString; 225152b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian return; 225252b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian } 225352b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian while (*argPtr) { 225452b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian Str += (*argPtr == '^' ? '*' : *argPtr); 225552b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian argPtr++; 225652b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian } 225752b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian} 225852b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian 2259e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian// FIXME. Consolidate this routine with RewriteBlockPointerType. 2260fa297fb29b38991c537a0ae90ff595102dcd21a9Daniel Dunbarvoid RewriteObjC::RewriteBlockPointerTypeVariable(std::string& Str, 2261fa297fb29b38991c537a0ae90ff595102dcd21a9Daniel Dunbar ValueDecl *VD) { 2262e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian QualType Type = VD->getType(); 226330c42404202d2e2512e51efc6066bd614cfdb5a4Douglas Gregor std::string TypeString(Type.getAsString(Context->getPrintingPolicy())); 2264e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian const char *argPtr = TypeString.c_str(); 2265e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian int paren = 0; 2266e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian while (*argPtr) { 2267e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian switch (*argPtr) { 2268e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian case '(': 2269e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian Str += *argPtr; 2270e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian paren++; 2271e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian break; 2272e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian case ')': 2273e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian Str += *argPtr; 2274e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian paren--; 2275e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian break; 2276e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian case '^': 2277e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian Str += '*'; 2278e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian if (paren == 1) 2279e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian Str += VD->getNameAsString(); 2280e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian break; 2281e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian default: 2282e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian Str += *argPtr; 2283e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian break; 2284e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian } 2285e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian argPtr++; 2286e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian } 2287e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian} 2288e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian 2289e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian 2290abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanianvoid RewriteObjC::RewriteBlockLiteralFunctionDecl(FunctionDecl *FD) { 2291abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian SourceLocation FunLocStart = FD->getTypeSpecStartLoc(); 2292abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian const FunctionType *funcType = FD->getType()->getAs<FunctionType>(); 2293abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian const FunctionProtoType *proto = dyn_cast<FunctionProtoType>(funcType); 2294abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian if (!proto) 2295abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian return; 2296651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType Type = proto->getReturnType(); 229730c42404202d2e2512e51efc6066bd614cfdb5a4Douglas Gregor std::string FdStr = Type.getAsString(Context->getPrintingPolicy()); 2298abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian FdStr += " "; 22994087f27e5416c799bcb6be072f905be752acb61cDaniel Dunbar FdStr += FD->getName(); 2300abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian FdStr += "("; 2301651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned numArgs = proto->getNumParams(); 2302abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian for (unsigned i = 0; i < numArgs; i++) { 2303651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType ArgType = proto->getParamType(i); 230452b2e1e0775a7a50616b02be4af92295c61e37f5Fariborz Jahanian RewriteBlockPointerType(FdStr, ArgType); 2305abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian if (i+1 < numArgs) 2306abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian FdStr += ", "; 2307abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian } 2308abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian FdStr += ");\n"; 2309d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(FunLocStart, FdStr); 23106bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurFunctionDeclToDeclareForBlock = nullptr; 2311abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian} 2312abfd83e74ca8a7553e375dd4631d2570f33648b4Fariborz Jahanian 2313e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer// SynthSuperConstructorFunctionDecl - id objc_super(id obj, id super); 2314e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramervoid RewriteObjC::SynthSuperConstructorFunctionDecl() { 2315e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer if (SuperConstructorFunctionDecl) 2316c0a123c81b4c88eb713ad2f82e3d7ad0e9ef7c68Steve Naroff return; 231746a98a7df016b4a6835a1902c2f8ff2a3a8012baSteve Naroff IdentifierInfo *msgSendIdent = &Context->Idents.get("__rw_objc_super"); 23185f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 2319c0a123c81b4c88eb713ad2f82e3d7ad0e9ef7c68Steve Naroff QualType argT = Context->getObjCIdType(); 2320c0a123c81b4c88eb713ad2f82e3d7ad0e9ef7c68Steve Naroff assert(!argT.isNull() && "Can't find 'id' type"); 2321c0a123c81b4c88eb713ad2f82e3d7ad0e9ef7c68Steve Naroff ArgTys.push_back(argT); 2322c0a123c81b4c88eb713ad2f82e3d7ad0e9ef7c68Steve Naroff ArgTys.push_back(argT); 2323e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType msgSendType = getSimpleFunctionType(Context->getObjCIdType(), 2324bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArgTys); 2325e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer SuperConstructorFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 2326e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2327e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2328e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier msgSendIdent, msgSendType, 23296bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SC_Extern); 2330c0a123c81b4c88eb713ad2f82e3d7ad0e9ef7c68Steve Naroff} 2331c0a123c81b4c88eb713ad2f82e3d7ad0e9ef7c68Steve Naroff 233209b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff// SynthMsgSendFunctionDecl - id objc_msgSend(id self, SEL op, ...); 2333b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::SynthMsgSendFunctionDecl() { 233409b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff IdentifierInfo *msgSendIdent = &Context->Idents.get("objc_msgSend"); 23355f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 2336a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType argT = Context->getObjCIdType(); 233709b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff assert(!argT.isNull() && "Can't find 'id' type"); 233809b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff ArgTys.push_back(argT); 2339a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek argT = Context->getObjCSelType(); 234009b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff assert(!argT.isNull() && "Can't find 'SEL' type"); 234109b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff ArgTys.push_back(argT); 2342e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType msgSendType = getSimpleFunctionType(Context->getObjCIdType(), 2343bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArgTys, /*isVariadic=*/true); 2344ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis MsgSendFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 2345e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2346e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 23476bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines msgSendIdent, msgSendType, 23486bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SC_Extern); 234909b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff} 235009b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff 2351874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff// SynthMsgSendSuperFunctionDecl - id objc_msgSendSuper(struct objc_super *, SEL op, ...); 2352b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::SynthMsgSendSuperFunctionDecl() { 2353874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff IdentifierInfo *msgSendIdent = &Context->Idents.get("objc_msgSendSuper"); 23545f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 2355465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara RecordDecl *RD = RecordDecl::Create(*Context, TTK_Struct, TUDecl, 2356ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara SourceLocation(), SourceLocation(), 2357df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Context->Idents.get("objc_super")); 2358874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff QualType argT = Context->getPointerType(Context->getTagDeclType(RD)); 2359874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff assert(!argT.isNull() && "Can't build 'struct objc_super *' type"); 2360874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff ArgTys.push_back(argT); 2361a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek argT = Context->getObjCSelType(); 2362874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff assert(!argT.isNull() && "Can't find 'SEL' type"); 2363874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff ArgTys.push_back(argT); 2364e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType msgSendType = getSimpleFunctionType(Context->getObjCIdType(), 2365bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArgTys, /*isVariadic=*/true); 2366ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis MsgSendSuperFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 2367e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2368e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 23696bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines msgSendIdent, msgSendType, 23706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SC_Extern); 2371874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff} 2372874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff 2373336c8f70ff961c5568de3b9c65fb0502843b7407Fariborz Jahanian// SynthMsgSendStretFunctionDecl - id objc_msgSend_stret(id self, SEL op, ...); 2374b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::SynthMsgSendStretFunctionDecl() { 237580a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian IdentifierInfo *msgSendIdent = &Context->Idents.get("objc_msgSend_stret"); 23765f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 2377a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType argT = Context->getObjCIdType(); 237880a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian assert(!argT.isNull() && "Can't find 'id' type"); 237980a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian ArgTys.push_back(argT); 2380a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek argT = Context->getObjCSelType(); 238180a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian assert(!argT.isNull() && "Can't find 'SEL' type"); 238280a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian ArgTys.push_back(argT); 2383336c8f70ff961c5568de3b9c65fb0502843b7407Fariborz Jahanian QualType msgSendType = getSimpleFunctionType(Context->getObjCIdType(), 2384bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArgTys, /*isVariadic=*/true); 2385ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis MsgSendStretFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 2386e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2387e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 23886bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines msgSendIdent, msgSendType, 23896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SC_Extern); 239080a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian} 239180a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian 23921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump// SynthMsgSendSuperStretFunctionDecl - 2393336c8f70ff961c5568de3b9c65fb0502843b7407Fariborz Jahanian// id objc_msgSendSuper_stret(struct objc_super *, SEL op, ...); 2394b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::SynthMsgSendSuperStretFunctionDecl() { 23951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump IdentifierInfo *msgSendIdent = 239680a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian &Context->Idents.get("objc_msgSendSuper_stret"); 23975f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 2398465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara RecordDecl *RD = RecordDecl::Create(*Context, TTK_Struct, TUDecl, 2399ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara SourceLocation(), SourceLocation(), 2400df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Context->Idents.get("objc_super")); 240180a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian QualType argT = Context->getPointerType(Context->getTagDeclType(RD)); 240280a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian assert(!argT.isNull() && "Can't build 'struct objc_super *' type"); 240380a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian ArgTys.push_back(argT); 2404a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek argT = Context->getObjCSelType(); 240580a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian assert(!argT.isNull() && "Can't find 'SEL' type"); 240680a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian ArgTys.push_back(argT); 2407336c8f70ff961c5568de3b9c65fb0502843b7407Fariborz Jahanian QualType msgSendType = getSimpleFunctionType(Context->getObjCIdType(), 2408bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArgTys, /*isVariadic=*/true); 2409ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis MsgSendSuperStretFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 24101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation(), 2411ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara SourceLocation(), 2412e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier msgSendIdent, 24136bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines msgSendType, nullptr, 2414d2615cc53b916e8aae45783ca7113b93de515ce3Rafael Espindola SC_Extern); 241580a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian} 241680a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian 24171284db8d85782c4eb1d41eb02358613c8681f07fSteve Naroff// SynthMsgSendFpretFunctionDecl - double objc_msgSend_fpret(id self, SEL op, ...); 2418b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::SynthMsgSendFpretFunctionDecl() { 2419acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian IdentifierInfo *msgSendIdent = &Context->Idents.get("objc_msgSend_fpret"); 24205f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 2421a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek QualType argT = Context->getObjCIdType(); 2422acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian assert(!argT.isNull() && "Can't find 'id' type"); 2423acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian ArgTys.push_back(argT); 2424a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek argT = Context->getObjCSelType(); 2425acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian assert(!argT.isNull() && "Can't find 'SEL' type"); 2426acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian ArgTys.push_back(argT); 2427e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType msgSendType = getSimpleFunctionType(Context->DoubleTy, 2428bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArgTys, /*isVariadic=*/true); 2429ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis MsgSendFpretFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 2430e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2431e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 24326bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines msgSendIdent, msgSendType, 24336bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SC_Extern); 2434acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian} 2435acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian 243609b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff// SynthGetClassFunctionDecl - id objc_getClass(const char *name); 2437b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::SynthGetClassFunctionDecl() { 243809b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff IdentifierInfo *getClassIdent = &Context->Idents.get("objc_getClass"); 24395f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 24400953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ArgTys.push_back(Context->getPointerType(Context->CharTy.withConst())); 2441e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType getClassType = getSimpleFunctionType(Context->getObjCIdType(), 2442bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArgTys); 2443ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis GetClassFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 2444e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2445e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 24466bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines getClassIdent, getClassType, 24476bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SC_Extern); 244809b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff} 244909b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff 2450d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian// SynthGetSuperClassFunctionDecl - Class class_getSuperclass(Class cls); 2451d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanianvoid RewriteObjC::SynthGetSuperClassFunctionDecl() { 2452d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian IdentifierInfo *getSuperClassIdent = 2453d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian &Context->Idents.get("class_getSuperclass"); 24545f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 2455d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian ArgTys.push_back(Context->getObjCClassType()); 2456e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType getClassType = getSimpleFunctionType(Context->getObjCClassType(), 2457bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArgTys); 2458d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian GetSuperClassFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 245916573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor SourceLocation(), 2460ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara SourceLocation(), 246116573fa9705b546b7597c273b25b85d6321e2b33Douglas Gregor getSuperClassIdent, 24626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines getClassType, nullptr, 2463d2615cc53b916e8aae45783ca7113b93de515ce3Rafael Espindola SC_Extern); 2464d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian} 2465d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian 246697bbab2df74cbfe221fb20454738d607a41f3ca4Fariborz Jahanian// SynthGetMetaClassFunctionDecl - id objc_getMetaClass(const char *name); 2467b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve Naroffvoid RewriteObjC::SynthGetMetaClassFunctionDecl() { 24689bcb5fc1fd48c1f40c6a3b5a59130ebc313b4957Steve Naroff IdentifierInfo *getClassIdent = &Context->Idents.get("objc_getMetaClass"); 24695f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 16> ArgTys; 24700953e767ff7817f97b3ab20896b229891eeff45bJohn McCall ArgTys.push_back(Context->getPointerType(Context->CharTy.withConst())); 2471e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType getClassType = getSimpleFunctionType(Context->getObjCIdType(), 2472bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose ArgTys); 2473ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis GetMetaClassFunctionDecl = FunctionDecl::Create(*Context, TUDecl, 2474e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2475e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier SourceLocation(), 2476e3b29886ab053123feeb256e92bf8af23ba136ccChad Rosier getClassIdent, getClassType, 24776bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SC_Extern); 24789bcb5fc1fd48c1f40c6a3b5a59130ebc313b4957Steve Naroff} 24799bcb5fc1fd48c1f40c6a3b5a59130ebc313b4957Steve Naroff 2480b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffStmt *RewriteObjC::RewriteObjCStringLiteral(ObjCStringLiteral *Exp) { 2481c568f1e98938584c0ef0b12ae5018ff7d90a4072Stephen Hines assert(Exp != nullptr && "Expected non-null ObjCStringLiteral"); 2482d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff QualType strType = getConstantStringStructType(); 2483d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff 2484d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff std::string S = "__NSConstantStringImpl_"; 24857691d9b77b01bf9df6c51e7cb8b43ec150f50b7bSteve Naroff 24867691d9b77b01bf9df6c51e7cb8b43ec150f50b7bSteve Naroff std::string tmpName = InFileName; 24877691d9b77b01bf9df6c51e7cb8b43ec150f50b7bSteve Naroff unsigned i; 24887691d9b77b01bf9df6c51e7cb8b43ec150f50b7bSteve Naroff for (i=0; i < tmpName.length(); i++) { 24897691d9b77b01bf9df6c51e7cb8b43ec150f50b7bSteve Naroff char c = tmpName.at(i); 2490651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // replace any non-alphanumeric characters with '_'. 24913f6f51e28231f65de9c2dd150a2d757b2162cfa3Jordan Rose if (!isAlphanumeric(c)) 24927691d9b77b01bf9df6c51e7cb8b43ec150f50b7bSteve Naroff tmpName[i] = '_'; 24937691d9b77b01bf9df6c51e7cb8b43ec150f50b7bSteve Naroff } 24947691d9b77b01bf9df6c51e7cb8b43ec150f50b7bSteve Naroff S += tmpName; 24957691d9b77b01bf9df6c51e7cb8b43ec150f50b7bSteve Naroff S += "_"; 2496d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff S += utostr(NumObjCStringLiterals++); 2497d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff 2498ba92b2ed976e29ea05f0f5afabaf9488c1096bebSteve Naroff Preamble += "static __NSConstantStringImpl " + S; 2499ba92b2ed976e29ea05f0f5afabaf9488c1096bebSteve Naroff Preamble += " __attribute__ ((section (\"__DATA, __cfstring\"))) = {__CFConstantStringClassReference,"; 2500ba92b2ed976e29ea05f0f5afabaf9488c1096bebSteve Naroff Preamble += "0x000007c8,"; // utf8_str 2501d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff // The pretty printer for StringLiteral handles escape characters properly. 2502a95d3750441ac8ad03e36af8e6e74039c9a3109dTed Kremenek std::string prettyBufS; 2503a95d3750441ac8ad03e36af8e6e74039c9a3109dTed Kremenek llvm::raw_string_ostream prettyBuf(prettyBufS); 25046bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Exp->getString()->printPretty(prettyBuf, nullptr, PrintingPolicy(LangOpts)); 2505ba92b2ed976e29ea05f0f5afabaf9488c1096bebSteve Naroff Preamble += prettyBuf.str(); 2506ba92b2ed976e29ea05f0f5afabaf9488c1096bebSteve Naroff Preamble += ","; 2507fd5b76fe99a123630321b45667a78f1a15be7241Steve Naroff Preamble += utostr(Exp->getString()->getByteLength()) + "};\n"; 25081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VarDecl *NewVD = VarDecl::Create(*Context, TUDecl, SourceLocation(), 2510ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara SourceLocation(), &Context->Idents.get(S), 25116bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines strType, nullptr, SC_Static); 2512f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr *DRE = new (Context) DeclRefExpr(NewVD, false, strType, VK_LValue, 2513f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation()); 25142de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall Expr *Unop = new (Context) UnaryOperator(DRE, UO_AddrOf, 25151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Context->getPointerType(DRE->getType()), 2516f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, OK_Ordinary, 2517f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation()); 25189698464266660346fa2da1bddc3e6404a9819b25Steve Naroff // cast to NSConstantString * 25199d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall CastExpr *cast = NoTypeInfoCStyleCastExpr(Context, Exp->getType(), 25201d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK_CPointerToObjCPointerCast, Unop); 2521dcbc5b0b0722282a0fdd829359fe0d7e22adb882Chris Lattner ReplaceStmt(Exp, cast); 2522f2ad2c92720f0e25c032188783a1d6374155f03aFariborz Jahanian // delete Exp; leak for now, see RewritePropertyOrImplicitSetter() usage for more info. 25239698464266660346fa2da1bddc3e6404a9819b25Steve Naroff return cast; 2524beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff} 2525beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff 2526874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff// struct objc_super { struct objc_object *receiver; struct objc_class *super; }; 2527b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffQualType RewriteObjC::getSuperStructType() { 2528874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff if (!SuperStructDecl) { 2529465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara SuperStructDecl = RecordDecl::Create(*Context, TTK_Struct, TUDecl, 2530ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara SourceLocation(), SourceLocation(), 2531df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Context->Idents.get("objc_super")); 2532874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff QualType FieldTypes[2]; 25331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2534874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff // struct objc_object *receiver; 25351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[0] = Context->getObjCIdType(); 2536874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff // struct objc_class *super; 25371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[1] = Context->getObjCClassType(); 253844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2539874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff // Create fields 254044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 2; ++i) { 25411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SuperStructDecl->addDecl(FieldDecl::Create(*Context, SuperStructDecl, 2542ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara SourceLocation(), 25436bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation(), nullptr, 25446bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines FieldTypes[i], nullptr, 25456bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*BitWidth=*/nullptr, 25467a614d8380297fcd2bc23986241905d97222948cRichard Smith /*Mutable=*/false, 2547ca5233044ef679840d1ad1c46a36b16e2ee8a6e1Richard Smith ICIS_NoInit)); 254844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 25491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2550838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor SuperStructDecl->completeDefinition(); 2551874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff } 2552874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff return Context->getTagDeclType(SuperStructDecl); 2553874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff} 2554874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff 2555b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffQualType RewriteObjC::getConstantStringStructType() { 2556d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff if (!ConstantStringDecl) { 2557465d41b92b2c862f3062c412a0538db65c6a2661Abramo Bagnara ConstantStringDecl = RecordDecl::Create(*Context, TTK_Struct, TUDecl, 2558ba877adeb49ed6dc17f27fa3a3bcd0cca713fd68Abramo Bagnara SourceLocation(), SourceLocation(), 2559df042e6c2bf06b2d9ed53c52469599ac1bd93a3fTed Kremenek &Context->Idents.get("__NSConstantStringImpl")); 2560d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff QualType FieldTypes[4]; 25611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2562d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff // struct objc_object *receiver; 25631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[0] = Context->getObjCIdType(); 2564d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff // int flags; 25651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[1] = Context->IntTy; 2566d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff // char *str; 25671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[2] = Context->getPointerType(Context->CharTy); 2568d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff // long length; 25691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FieldTypes[3] = Context->LongTy; 257044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2571d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff // Create fields 257244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor for (unsigned i = 0; i < 4; ++i) { 25731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantStringDecl->addDecl(FieldDecl::Create(*Context, 25741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConstantStringDecl, 2575ff676cb48fe8bf7be2feaa251dc7c5fb15af4730Abramo Bagnara SourceLocation(), 25766bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation(), nullptr, 25776bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines FieldTypes[i], nullptr, 25786bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*BitWidth=*/nullptr, 25797a614d8380297fcd2bc23986241905d97222948cRichard Smith /*Mutable=*/true, 2580ca5233044ef679840d1ad1c46a36b16e2ee8a6e1Richard Smith ICIS_NoInit)); 258144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 258244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 2583838db383b69b9fb55f55c8e9546477df198a4faaDouglas Gregor ConstantStringDecl->completeDefinition(); 2584d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff } 2585d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff return Context->getTagDeclType(ConstantStringDecl); 2586d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff} 2587d82a9ab4540899e24c96a389c5488381c5551c78Steve Naroff 25889fc5b007726ef8a2fa923a95f047a51477704121Fariborz JahanianCallExpr *RewriteObjC::SynthMsgSendStretCallExpr(FunctionDecl *MsgSendStretFlavor, 25899fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian QualType msgSendType, 25909fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian QualType returnType, 25919fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian SmallVectorImpl<QualType> &ArgTypes, 25929fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian SmallVectorImpl<Expr*> &MsgExprs, 25939fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian ObjCMethodDecl *Method) { 25949fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian // Create a reference to the objc_msgSend_stret() declaration. 25959fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian DeclRefExpr *STDRE = new (Context) DeclRefExpr(MsgSendStretFlavor, 25969fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian false, msgSendType, 25979fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian VK_LValue, SourceLocation()); 25989fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian // Need to cast objc_msgSend_stret to "void *" (see above comment). 25999fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian CastExpr *cast = NoTypeInfoCStyleCastExpr(Context, 26009fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian Context->getPointerType(Context->VoidTy), 26019fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian CK_BitCast, STDRE); 26029fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian // Now do the "normal" pointer to function cast. 2603bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose QualType castType = getSimpleFunctionType(returnType, ArgTypes, 2604bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose Method ? Method->isVariadic() 2605bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose : false); 26069fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian castType = Context->getPointerType(castType); 26079fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian cast = NoTypeInfoCStyleCastExpr(Context, castType, CK_BitCast, 26089fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian cast); 26099fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian 26109fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian // Don't forget the parens to enforce the proper binding. 26119fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian ParenExpr *PE = new (Context) ParenExpr(SourceLocation(), SourceLocation(), cast); 26129fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian 26139fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian const FunctionType *FT = msgSendType->getAs<FunctionType>(); 2614651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines CallExpr *STCE = new (Context) CallExpr( 2615651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines *Context, PE, MsgExprs, FT->getReturnType(), VK_RValue, SourceLocation()); 26169fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian return STCE; 26179fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian 26189fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian} 26199fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian 26209fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian 26211d35b168348a308696d1fce29a18c14143f61d6aFariborz JahanianStmt *RewriteObjC::SynthMessageExpr(ObjCMessageExpr *Exp, 26221d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian SourceLocation StartLoc, 26231d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian SourceLocation EndLoc) { 2624a70711b296953bfe2fc17351f3908dcc417c404aFariborz Jahanian if (!SelGetUidFunctionDecl) 2625a70711b296953bfe2fc17351f3908dcc417c404aFariborz Jahanian SynthSelGetUidFunctionDecl(); 262609b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff if (!MsgSendFunctionDecl) 262709b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff SynthMsgSendFunctionDecl(); 2628874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff if (!MsgSendSuperFunctionDecl) 2629874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff SynthMsgSendSuperFunctionDecl(); 263080a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian if (!MsgSendStretFunctionDecl) 263180a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian SynthMsgSendStretFunctionDecl(); 263280a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian if (!MsgSendSuperStretFunctionDecl) 263380a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian SynthMsgSendSuperStretFunctionDecl(); 2634acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian if (!MsgSendFpretFunctionDecl) 2635acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian SynthMsgSendFpretFunctionDecl(); 263609b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff if (!GetClassFunctionDecl) 263709b266eb2a014b7af4dc06126c47b7629030ce09Steve Naroff SynthGetClassFunctionDecl(); 2638d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian if (!GetSuperClassFunctionDecl) 2639d314e9e12326c2fd8f140adc4c769d13b483b3f6Fariborz Jahanian SynthGetSuperClassFunctionDecl(); 26409bcb5fc1fd48c1f40c6a3b5a59130ebc313b4957Steve Naroff if (!GetMetaClassFunctionDecl) 26419bcb5fc1fd48c1f40c6a3b5a59130ebc313b4957Steve Naroff SynthGetMetaClassFunctionDecl(); 26421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2643874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff // default to objc_msgSend(). 264480a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian FunctionDecl *MsgSendFlavor = MsgSendFunctionDecl; 264580a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // May need to use objc_msgSend_stret() as well. 26466bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines FunctionDecl *MsgSendStretFlavor = nullptr; 2647621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff if (ObjCMethodDecl *mDecl = Exp->getMethodDecl()) { 2648651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType resultType = mDecl->getReturnType(); 2649fb87b89fc9eb103e19fb8e4b925c23f0bd091b99Douglas Gregor if (resultType->isRecordType()) 265080a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian MsgSendStretFlavor = MsgSendStretFunctionDecl; 26518b51fd76319d8b71f401cc6ad56e6f4f7be77958Chris Lattner else if (resultType->isRealFloatingType()) 2652acb4977dd3b6a678bfbdb80781bfe3c617be3f24Fariborz Jahanian MsgSendFlavor = MsgSendFpretFunctionDecl; 265380a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian } 26541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2655934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff // Synthesize a call to objc_msgSend(). 26565f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Expr*, 8> MsgExprs; 265704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor switch (Exp->getReceiverKind()) { 265804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor case ObjCMessageExpr::SuperClass: { 265904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor MsgSendFlavor = MsgSendSuperFunctionDecl; 266004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor if (MsgSendStretFlavor) 266104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor MsgSendStretFlavor = MsgSendSuperStretFunctionDecl; 266204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor assert(MsgSendFlavor && "MsgSendFlavor is NULL!"); 266304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 266404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ObjCInterfaceDecl *ClassDecl = CurMethodDef->getClassInterface(); 266504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 26665f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Expr*, 4> InitExprs; 266704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 266804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // set the receiver to self, the first argument to all methods. 266904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor InitExprs.push_back( 267004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor NoTypeInfoCStyleCastExpr(Context, Context->getObjCIdType(), 2671a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall CK_BitCast, 267204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor new (Context) DeclRefExpr(CurMethodDef->getSelfDecl(), 2673f4b88a45902af1802a1cb42ba48b1c474474f228John McCall false, 2674f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Context->getObjCIdType(), 2675f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, 2676f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation())) 267704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ); // set the 'receiver'. 267804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 267904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (id)class_getSuperclass((Class)objc_getClass("CurrentClass")) 26805f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Expr*, 8> ClsExprs; 2681651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ClsExprs.push_back(getStringLiteral(ClassDecl->getIdentifier()->getName())); 268204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor CallExpr *Cls = SynthesizeCallToFunctionDecl(GetMetaClassFunctionDecl, 268304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor &ClsExprs[0], 268404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ClsExprs.size(), 268504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor StartLoc, 268604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor EndLoc); 268704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (Class)objc_getClass("CurrentClass") 268804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor CastExpr *ArgExpr = NoTypeInfoCStyleCastExpr(Context, 268904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Context->getObjCClassType(), 269097bbab2df74cbfe221fb20454738d607a41f3ca4Fariborz Jahanian CK_BitCast, Cls); 269104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ClsExprs.clear(); 269204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ClsExprs.push_back(ArgExpr); 269304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Cls = SynthesizeCallToFunctionDecl(GetSuperClassFunctionDecl, 269404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor &ClsExprs[0], ClsExprs.size(), 269504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor StartLoc, EndLoc); 269604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 269704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (id)class_getSuperclass((Class)objc_getClass("CurrentClass")) 269804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // To turn off a warning, type-cast to 'id' 269904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor InitExprs.push_back( // set 'super class', using class_getSuperclass(). 270004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor NoTypeInfoCStyleCastExpr(Context, 270104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Context->getObjCIdType(), 2702a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall CK_BitCast, Cls)); 270304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // struct objc_super 270404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor QualType superType = getSuperStructType(); 270504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Expr *SuperRep; 270604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 270762ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (LangOpts.MicrosoftExt) { 2708e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer SynthSuperConstructorFunctionDecl(); 2709e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer // Simulate a constructor call... 2710e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer DeclRefExpr *DRE = new (Context) DeclRefExpr(SuperConstructorFunctionDecl, 2711f4b88a45902af1802a1cb42ba48b1c474474f228John McCall false, superType, VK_LValue, 2712f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation()); 27133b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer SuperRep = new (Context) CallExpr(*Context, DRE, InitExprs, 2714f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall superType, VK_LValue, 2715f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation()); 271604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // The code for super is a little tricky to prevent collision with 271704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // the structure definition in the header. The rewriter has it's own 271804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // internal definition (__rw_objc_super) that is uses. This is why 271904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // we need the cast below. For example: 272004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (struct objc_super *)&__rw_objc_super((id)self, (id)objc_getClass("SUPER")) 272104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // 27222de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall SuperRep = new (Context) UnaryOperator(SuperRep, UO_AddrOf, 272304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Context->getPointerType(SuperRep->getType()), 2724f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, OK_Ordinary, 2725f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation()); 272604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor SuperRep = NoTypeInfoCStyleCastExpr(Context, 272704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Context->getPointerType(superType), 2728a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall CK_BitCast, SuperRep); 27299bcb5fc1fd48c1f40c6a3b5a59130ebc313b4957Steve Naroff } else { 273004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (struct objc_super) { <exprs from above> } 273104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor InitListExpr *ILE = 27323b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer new (Context) InitListExpr(*Context, SourceLocation(), InitExprs, 273304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor SourceLocation()); 273404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor TypeSourceInfo *superTInfo 273504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor = Context->getTrivialTypeSourceInfo(superType); 273604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor SuperRep = new (Context) CompoundLiteralExpr(SourceLocation(), superTInfo, 2737f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall superType, VK_LValue, 2738f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ILE, false); 273904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // struct objc_super * 27402de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall SuperRep = new (Context) UnaryOperator(SuperRep, UO_AddrOf, 274104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Context->getPointerType(SuperRep->getType()), 2742f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, OK_Ordinary, 2743f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation()); 27449bcb5fc1fd48c1f40c6a3b5a59130ebc313b4957Steve Naroff } 274504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor MsgExprs.push_back(SuperRep); 274604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor break; 274704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 274804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 274904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor case ObjCMessageExpr::Class: { 27505f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Expr*, 8> ClsExprs; 275104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ObjCInterfaceDecl *Class 2752506b57e8b79d7dc2c367bf2ee7ec95420ad3fc8fJohn McCall = Exp->getClassReceiver()->getAs<ObjCObjectType>()->getInterface(); 275304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor IdentifierInfo *clsName = Class->getIdentifier(); 2754651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ClsExprs.push_back(getStringLiteral(clsName->getName())); 275504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor CallExpr *Cls = SynthesizeCallToFunctionDecl(GetClassFunctionDecl, 275604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor &ClsExprs[0], 275704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ClsExprs.size(), 275804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor StartLoc, EndLoc); 275904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor MsgExprs.push_back(Cls); 276004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor break; 276104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 276204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 276304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor case ObjCMessageExpr::SuperInstance:{ 276404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor MsgSendFlavor = MsgSendSuperFunctionDecl; 276504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor if (MsgSendStretFlavor) 276604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor MsgSendStretFlavor = MsgSendSuperStretFunctionDecl; 276704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor assert(MsgSendFlavor && "MsgSendFlavor is NULL!"); 276804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ObjCInterfaceDecl *ClassDecl = CurMethodDef->getClassInterface(); 27695f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Expr*, 4> InitExprs; 277004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 277104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor InitExprs.push_back( 277204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor NoTypeInfoCStyleCastExpr(Context, Context->getObjCIdType(), 2773a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall CK_BitCast, 277404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor new (Context) DeclRefExpr(CurMethodDef->getSelfDecl(), 2775f4b88a45902af1802a1cb42ba48b1c474474f228John McCall false, 2776f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Context->getObjCIdType(), 2777f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, SourceLocation())) 277804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ); // set the 'receiver'. 277904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 278004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (id)class_getSuperclass((Class)objc_getClass("CurrentClass")) 27815f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Expr*, 8> ClsExprs; 2782651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ClsExprs.push_back(getStringLiteral(ClassDecl->getIdentifier()->getName())); 278304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor CallExpr *Cls = SynthesizeCallToFunctionDecl(GetClassFunctionDecl, 278404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor &ClsExprs[0], 278504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ClsExprs.size(), 278604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor StartLoc, EndLoc); 278704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (Class)objc_getClass("CurrentClass") 278804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor CastExpr *ArgExpr = NoTypeInfoCStyleCastExpr(Context, 278904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Context->getObjCClassType(), 2790a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall CK_BitCast, Cls); 279104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ClsExprs.clear(); 279204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor ClsExprs.push_back(ArgExpr); 279304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Cls = SynthesizeCallToFunctionDecl(GetSuperClassFunctionDecl, 279404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor &ClsExprs[0], ClsExprs.size(), 279504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor StartLoc, EndLoc); 279604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 279704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (id)class_getSuperclass((Class)objc_getClass("CurrentClass")) 279804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // To turn off a warning, type-cast to 'id' 279904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor InitExprs.push_back( 280004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // set 'super class', using class_getSuperclass(). 280104badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor NoTypeInfoCStyleCastExpr(Context, Context->getObjCIdType(), 2802a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall CK_BitCast, Cls)); 280304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // struct objc_super 280404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor QualType superType = getSuperStructType(); 280504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Expr *SuperRep; 280604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 280762ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (LangOpts.MicrosoftExt) { 2808e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer SynthSuperConstructorFunctionDecl(); 2809e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer // Simulate a constructor call... 2810e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer DeclRefExpr *DRE = new (Context) DeclRefExpr(SuperConstructorFunctionDecl, 2811f4b88a45902af1802a1cb42ba48b1c474474f228John McCall false, superType, VK_LValue, 2812f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation()); 28133b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer SuperRep = new (Context) CallExpr(*Context, DRE, InitExprs, 2814f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall superType, VK_LValue, SourceLocation()); 281504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // The code for super is a little tricky to prevent collision with 281604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // the structure definition in the header. The rewriter has it's own 281704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // internal definition (__rw_objc_super) that is uses. This is why 281804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // we need the cast below. For example: 281904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (struct objc_super *)&__rw_objc_super((id)self, (id)objc_getClass("SUPER")) 282004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // 28212de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall SuperRep = new (Context) UnaryOperator(SuperRep, UO_AddrOf, 282204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Context->getPointerType(SuperRep->getType()), 2823f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, OK_Ordinary, 282404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor SourceLocation()); 282504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor SuperRep = NoTypeInfoCStyleCastExpr(Context, 282604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Context->getPointerType(superType), 2827a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall CK_BitCast, SuperRep); 2828874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff } else { 282904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // (struct objc_super) { <exprs from above> } 283004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor InitListExpr *ILE = 28313b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer new (Context) InitListExpr(*Context, SourceLocation(), InitExprs, 283204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor SourceLocation()); 283304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor TypeSourceInfo *superTInfo 283404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor = Context->getTrivialTypeSourceInfo(superType); 283504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor SuperRep = new (Context) CompoundLiteralExpr(SourceLocation(), superTInfo, 2836f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall superType, VK_RValue, ILE, 2837f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall false); 2838874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff } 283904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor MsgExprs.push_back(SuperRep); 284004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor break; 28416568d4dd760f37a945f7c9a249b1500de0777a2dSteve Naroff } 284204badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 284304badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor case ObjCMessageExpr::Instance: { 284404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // Remove all type-casts because it may contain objc-style types; e.g. 284504badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor // Foo<Proto> *. 284604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor Expr *recExpr = Exp->getInstanceReceiver(); 284704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor while (CStyleCastExpr *CE = dyn_cast<CStyleCastExpr>(recExpr)) 284804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor recExpr = CE->getSubExpr(); 2849baac1ea9e06985fceff856398655c6dfdab8c85cFariborz Jahanian CastKind CK = recExpr->getType()->isObjCObjectPointerType() 2850baac1ea9e06985fceff856398655c6dfdab8c85cFariborz Jahanian ? CK_BitCast : recExpr->getType()->isBlockPointerType() 2851baac1ea9e06985fceff856398655c6dfdab8c85cFariborz Jahanian ? CK_BlockPointerToObjCPointerCast 2852baac1ea9e06985fceff856398655c6dfdab8c85cFariborz Jahanian : CK_CPointerToObjCPointerCast; 2853baac1ea9e06985fceff856398655c6dfdab8c85cFariborz Jahanian 285404badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor recExpr = NoTypeInfoCStyleCastExpr(Context, Context->getObjCIdType(), 2855baac1ea9e06985fceff856398655c6dfdab8c85cFariborz Jahanian CK, recExpr); 285604badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor MsgExprs.push_back(recExpr); 285704badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor break; 285804badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 285904badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor } 286004badcf84c8d504d8491c7c7e29b58f52cb16640Douglas Gregor 2861beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff // Create a call to sel_registerName("selName"), it will be the 2nd argument. 28625f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<Expr*, 8> SelExprs; 2863651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SelExprs.push_back(getStringLiteral(Exp->getSelector().getAsString())); 2864934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff CallExpr *SelExp = SynthesizeCallToFunctionDecl(SelGetUidFunctionDecl, 28651d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian &SelExprs[0], SelExprs.size(), 28661d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian StartLoc, 28671d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian EndLoc); 2868934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff MsgExprs.push_back(SelExp); 28691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2870934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff // Now push any user supplied arguments. 2871934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff for (unsigned i = 0; i < Exp->getNumArgs(); i++) { 28726568d4dd760f37a945f7c9a249b1500de0777a2dSteve Naroff Expr *userExpr = Exp->getArg(i); 28737e3411b23eb3724da5461dc6d6f97d14b3b0a52fSteve Naroff // Make all implicit casts explicit...ICE comes in handy:-) 28747e3411b23eb3724da5461dc6d6f97d14b3b0a52fSteve Naroff if (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(userExpr)) { 28757e3411b23eb3724da5461dc6d6f97d14b3b0a52fSteve Naroff // Reuse the ICE type, it is exactly what the doctor ordered. 2876dff3f018e0bf93a08f135954a5771bfe664a7744Fariborz Jahanian QualType type = ICE->getType(); 2877dff3f018e0bf93a08f135954a5771bfe664a7744Fariborz Jahanian if (needToScanForQualifiers(type)) 2878dff3f018e0bf93a08f135954a5771bfe664a7744Fariborz Jahanian type = Context->getObjCIdType(); 28791f90622e9d24064164df1608ea125d0ed451ac68Fariborz Jahanian // Make sure we convert "type (^)(...)" to "type (*)(...)". 28804fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian (void)convertBlockPointerToFunctionPointer(type); 28811a38b46ae2f818592577546c8c800ada8de7962bFariborz Jahanian const Expr *SubExpr = ICE->IgnoreParenImpCasts(); 28821d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CastKind CK; 28831d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall if (SubExpr->getType()->isIntegralType(*Context) && 28841d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall type->isBooleanType()) { 28851d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_IntegralToBoolean; 28861d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } else if (type->isObjCObjectPointerType()) { 28871d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall if (SubExpr->getType()->isBlockPointerType()) { 28881d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_BlockPointerToObjCPointerCast; 28891d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } else if (SubExpr->getType()->isPointerType()) { 28901d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_CPointerToObjCPointerCast; 28911d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } else { 28921d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_BitCast; 28931d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } 28941d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } else { 28951d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_BitCast; 28961d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } 28971d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall 28981d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall userExpr = NoTypeInfoCStyleCastExpr(Context, type, CK, userExpr); 2899d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian } 2900d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian // Make id<P...> cast into an 'id' cast. 29016eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor else if (CStyleCastExpr *CE = dyn_cast<CStyleCastExpr>(userExpr)) { 2902a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (CE->getType()->isObjCQualifiedIdType()) { 29036eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor while ((CE = dyn_cast<CStyleCastExpr>(userExpr))) 2904d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian userExpr = CE->getSubExpr(); 29051d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CastKind CK; 29061d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall if (userExpr->getType()->isIntegralType(*Context)) { 29071d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_IntegralToPointer; 29081d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } else if (userExpr->getType()->isBlockPointerType()) { 29091d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_BlockPointerToObjCPointerCast; 29101d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } else if (userExpr->getType()->isPointerType()) { 29111d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_CPointerToObjCPointerCast; 29121d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } else { 29131d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK = CK_BitCast; 29141d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall } 29159d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall userExpr = NoTypeInfoCStyleCastExpr(Context, Context->getObjCIdType(), 29161d9b3b25f7ac0d0195bba6b507a684fe5e7943eeJohn McCall CK, userExpr); 2917d58fabf7ed279be18a5e82617f809c9deff9be67Fariborz Jahanian } 29181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 29196568d4dd760f37a945f7c9a249b1500de0777a2dSteve Naroff MsgExprs.push_back(userExpr); 2920621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff // We've transferred the ownership to MsgExprs. For now, we *don't* null 2921621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff // out the argument in the original expression (since we aren't deleting 2922f2ad2c92720f0e25c032188783a1d6374155f03aFariborz Jahanian // the ObjCMessageExpr). See RewritePropertyOrImplicitSetter() usage for more info. 2923621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff //Exp->setArg(i, 0); 2924934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 2925ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // Generate the funky cast. 2926ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff CastExpr *cast; 29275f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVector<QualType, 8> ArgTypes; 2928ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff QualType returnType; 29291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2930ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // Push 'id' and 'SEL', the 2 implicit arguments. 2931c3a438c39ca6061965007c273727f27dfaa4a694Steve Naroff if (MsgSendFlavor == MsgSendSuperFunctionDecl) 2932c3a438c39ca6061965007c273727f27dfaa4a694Steve Naroff ArgTypes.push_back(Context->getPointerType(getSuperStructType())); 2933c3a438c39ca6061965007c273727f27dfaa4a694Steve Naroff else 2934a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ArgTypes.push_back(Context->getObjCIdType()); 2935a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ArgTypes.push_back(Context->getObjCSelType()); 293689951a86b594513c2a013532ed45d197413b1087Chris Lattner if (ObjCMethodDecl *OMD = Exp->getMethodDecl()) { 2937ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // Push any user argument types. 2938651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto *PI : OMD->params()) { 2939651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType t = PI->getType()->isObjCQualifiedIdType() 29401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ? Context->getObjCIdType() 2941651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines : PI->getType(); 2942a206b0614a392cfef19aaaa894f9d3c756006421Steve Naroff // Make sure we convert "t (^)(...)" to "t (*)(...)". 29434fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian (void)convertBlockPointerToFunctionPointer(t); 2944352336bb0a480b044eb03e7359e73d3b173d9cddSteve Naroff ArgTypes.push_back(t); 2945352336bb0a480b044eb03e7359e73d3b173d9cddSteve Naroff } 29463a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian returnType = Exp->getType(); 29473a448fb539f66b204a6119946973d29fa5547574Fariborz Jahanian convertToUnqualifiedObjCType(returnType); 29484fc8453dd02d015b1161d83a5740632617aedd12Fariborz Jahanian (void)convertBlockPointerToFunctionPointer(returnType); 2949ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff } else { 2950a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek returnType = Context->getObjCIdType(); 2951ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff } 2952ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // Get the type, we will need to reference it in a couple spots. 2953874e232a0d5e179197de860e6dfa3e99cd42ad30Steve Naroff QualType msgSendType = MsgSendFlavor->getType(); 29541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2955ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // Create a reference to the objc_msgSend() declaration. 2956f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr *DRE = new (Context) DeclRefExpr(MsgSendFlavor, false, msgSendType, 2957f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_LValue, SourceLocation()); 2958ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff 29591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Need to cast objc_msgSend to "void *" (to workaround a GCC bandaid). 2960ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // If we don't do this cast, we get the following bizarre warning/note: 2961ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // xx.m:13: warning: function called through a non-compatible type 2962ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // xx.m:13: note: if this code is reached, the program will abort 29639d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall cast = NoTypeInfoCStyleCastExpr(Context, 29649d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall Context->getPointerType(Context->VoidTy), 2965a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall CK_BitCast, DRE); 29661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2967ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // Now do the "normal" pointer to function cast. 2968bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose // If we don't have a method decl, force a variadic cast. 2969bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose const ObjCMethodDecl *MD = Exp->getMethodDecl(); 2970e23cf437fe76b1ed02d63c3f61b456fd48a915f5John McCall QualType castType = 2971bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose getSimpleFunctionType(returnType, ArgTypes, MD ? MD->isVariadic() : true); 2972ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff castType = Context->getPointerType(castType); 2973a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall cast = NoTypeInfoCStyleCastExpr(Context, castType, CK_BitCast, 29749d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall cast); 2975ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff 2976ab972d3c4b49fb0b99ae2beee70c1771a05342baSteve Naroff // Don't forget the parens to enforce the proper binding. 29771d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian ParenExpr *PE = new (Context) ParenExpr(StartLoc, EndLoc, cast); 29781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2979183700f494ec9b6701b6efe82bcb25f4c79ba561John McCall const FunctionType *FT = msgSendType->getAs<FunctionType>(); 2980651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines CallExpr *CE = new (Context) 2981651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines CallExpr(*Context, PE, MsgExprs, FT->getReturnType(), VK_RValue, EndLoc); 298233b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian Stmt *ReplacingStmt = CE; 298380a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian if (MsgSendStretFlavor) { 298480a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // We have the method which returns a struct/union. Must also generate 298580a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // call to objc_msgSend_stret and hang both varieties on a conditional 298680a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // expression which dictate which one to envoke depending on size of 298780a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // method's return type. 29889fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian 29899fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian CallExpr *STCE = SynthMsgSendStretCallExpr(MsgSendStretFlavor, 29909fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian msgSendType, returnType, 29919fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian ArgTypes, MsgExprs, 29929fc5b007726ef8a2fa923a95f047a51477704121Fariborz Jahanian Exp->getMethodDecl()); 29931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 299480a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // Build sizeof(returnType) 2995f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne UnaryExprOrTypeTraitExpr *sizeofExpr = 2996f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne new (Context) UnaryExprOrTypeTraitExpr(UETT_SizeOf, 2997f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Context->getTrivialTypeSourceInfo(returnType), 2998f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne Context->getSizeType(), SourceLocation(), 2999f4e3cfbe8abd124be6341ef5d714819b4fbd9082Peter Collingbourne SourceLocation()); 300080a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // (sizeof(returnType) <= 8 ? objc_msgSend(...) : objc_msgSend_stret(...)) 300180a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // FIXME: Value of 8 is base on ppc32/x86 ABI for the most common cases. 300280a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // For X86 it is more complicated and some kind of target specific routine 300380a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // is needed to decide what to do. 30041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned IntSize = 300598be4943e8dc4f3905629a7102668960873cf863Chris Lattner static_cast<unsigned>(Context->getTypeSize(Context->IntTy)); 30069996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral *limit = IntegerLiteral::Create(*Context, 30079996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt(IntSize, 8), 30089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Context->IntTy, 30099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis SourceLocation()); 3010f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall BinaryOperator *lessThanExpr = 3011f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall new (Context) BinaryOperator(sizeofExpr, limit, BO_LE, Context->IntTy, 3012be9af1288881110e406b87914162eaa59f1e5918Lang Hames VK_RValue, OK_Ordinary, SourceLocation(), 3013be9af1288881110e406b87914162eaa59f1e5918Lang Hames false); 301480a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian // (sizeof(returnType) <= 8 ? objc_msgSend(...) : objc_msgSend_stret(...)) 30151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ConditionalOperator *CondExpr = 301647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor new (Context) ConditionalOperator(lessThanExpr, 301747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation(), CE, 301856ca35d396d8692c384c785f9aeebcf22563fe1eJohn McCall SourceLocation(), STCE, 30190943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall returnType, VK_RValue, OK_Ordinary); 3020f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian ReplacingStmt = new (Context) ParenExpr(SourceLocation(), SourceLocation(), 3021f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian CondExpr); 302280a6a5abbbf0b7c45f535d4e0b0d00f4c3f320eaFariborz Jahanian } 3023f2ad2c92720f0e25c032188783a1d6374155f03aFariborz Jahanian // delete Exp; leak for now, see RewritePropertyOrImplicitSetter() usage for more info. 302433b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian return ReplacingStmt; 302533b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian} 302633b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian 3027b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffStmt *RewriteObjC::RewriteMessageExpr(ObjCMessageExpr *Exp) { 30281d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian Stmt *ReplacingStmt = SynthMessageExpr(Exp, Exp->getLocStart(), 30291d35b168348a308696d1fce29a18c14143f61d6aFariborz Jahanian Exp->getLocEnd()); 30301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3031934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff // Now do the actual rewrite. 3032dcbc5b0b0722282a0fdd829359fe0d7e22adb882Chris Lattner ReplaceStmt(Exp, ReplacingStmt); 30331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3034f2ad2c92720f0e25c032188783a1d6374155f03aFariborz Jahanian // delete Exp; leak for now, see RewritePropertyOrImplicitSetter() usage for more info. 303533b9c4e4c6f1b055d94c8b57cd16883125701ac7Fariborz Jahanian return ReplacingStmt; 3036ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff} 3037ebf2b56bce1ea6b1b8133c1f0e2131503d229d2dSteve Naroff 3038621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff// typedef struct objc_object Protocol; 3039621edce9cd7d4e06979daf911cc306350619f33bSteve NaroffQualType RewriteObjC::getProtocolType() { 3040621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff if (!ProtocolTypeDecl) { 3041a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *TInfo 3042a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall = Context->getTrivialTypeSourceInfo(Context->getObjCIdType()); 3043621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff ProtocolTypeDecl = TypedefDecl::Create(*Context, TUDecl, 3044344577e6b58f42d18dc8118c8903b49a85dc005eAbramo Bagnara SourceLocation(), SourceLocation(), 3045621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff &Context->Idents.get("Protocol"), 3046a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TInfo); 3047621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff } 3048621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff return Context->getTypeDeclType(ProtocolTypeDecl); 3049621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff} 3050621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff 305136ee2cb3247a662b6049f9cc097ba5cf9c0bb2b5Fariborz Jahanian/// RewriteObjCProtocolExpr - Rewrite a protocol expression into 3052621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff/// a synthesized/forward data reference (to the protocol's metadata). 3053621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff/// The forward references (and metadata) are generated in 3054621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff/// RewriteObjC::HandleTranslationUnit(). 3055b29b427fa977e8e13ea104d22b193b2cd8a4a52fSteve NaroffStmt *RewriteObjC::RewriteObjCProtocolExpr(ObjCProtocolExpr *Exp) { 3056621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff std::string Name = "_OBJC_PROTOCOL_" + Exp->getProtocol()->getNameAsString(); 3057621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff IdentifierInfo *ID = &Context->Idents.get(Name); 30581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump VarDecl *VD = VarDecl::Create(*Context, TUDecl, SourceLocation(), 30596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation(), ID, getProtocolType(), 30606bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SC_Extern); 3061f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr *DRE = new (Context) DeclRefExpr(VD, false, getProtocolType(), 3062f4b88a45902af1802a1cb42ba48b1c474474f228John McCall VK_LValue, SourceLocation()); 30632de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall Expr *DerefExpr = new (Context) UnaryOperator(DRE, UO_AddrOf, 3064621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff Context->getPointerType(DRE->getType()), 3065f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall VK_RValue, OK_Ordinary, SourceLocation()); 30669d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall CastExpr *castExpr = NoTypeInfoCStyleCastExpr(Context, DerefExpr->getType(), 3067a5bbc50b1e1b27008a79c11a6c6c33e51d8a9cc9John McCall CK_BitCast, 30689d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall DerefExpr); 3069621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff ReplaceStmt(Exp, castExpr); 30703fc73ee0c613715ebce78e30b4d050ea715a007dDouglas Gregor ProtocolExprDecls.insert(Exp->getProtocol()->getCanonicalDecl()); 3071f2ad2c92720f0e25c032188783a1d6374155f03aFariborz Jahanian // delete Exp; leak for now, see RewritePropertyOrImplicitSetter() usage for more info. 3072621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff return castExpr; 30731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 307436ee2cb3247a662b6049f9cc097ba5cf9c0bb2b5Fariborz Jahanian} 307536ee2cb3247a662b6049f9cc097ba5cf9c0bb2b5Fariborz Jahanian 30761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpbool RewriteObjC::BufferContainsPPDirectives(const char *startBuf, 3077baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff const char *endBuf) { 3078baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff while (startBuf < endBuf) { 3079baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff if (*startBuf == '#') { 3080baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // Skip whitespace. 3081baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff for (++startBuf; startBuf[0] == ' ' || startBuf[0] == '\t'; ++startBuf) 3082baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff ; 3083baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff if (!strncmp(startBuf, "if", strlen("if")) || 3084baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "ifdef", strlen("ifdef")) || 3085baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "ifndef", strlen("ifndef")) || 3086baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "define", strlen("define")) || 3087baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "undef", strlen("undef")) || 3088baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "else", strlen("else")) || 3089baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "elif", strlen("elif")) || 3090baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "endif", strlen("endif")) || 3091baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "pragma", strlen("pragma")) || 3092baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "include", strlen("include")) || 3093baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "import", strlen("import")) || 3094baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff !strncmp(startBuf, "include_next", strlen("include_next"))) 3095baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff return true; 3096baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff } 3097baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff startBuf++; 3098baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff } 3099baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff return false; 3100baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff} 3101baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff 31025845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanian/// RewriteObjCInternalStruct - Rewrite one internal struct corresponding to 310326e4cd331c389a9b7d51c91981a7a10c8a909bf4Fariborz Jahanian/// an objective-c class with ivars. 31045845717880d1b0ecaf68c58093681eb18ace9237Fariborz Jahanianvoid RewriteObjC::RewriteObjCInternalStruct(ObjCInterfaceDecl *CDecl, 310526e4cd331c389a9b7d51c91981a7a10c8a909bf4Fariborz Jahanian std::string &Result) { 3106a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek assert(CDecl && "Class missing in SynthesizeObjCInternalStruct"); 31074087f27e5416c799bcb6be072f905be752acb61cDaniel Dunbar assert(CDecl->getName() != "" && 31082e1cd4264d363ca869bf37ef160902f211d21b8cDouglas Gregor "Name missing in SynthesizeObjCInternalStruct"); 3109212b768a4b39479bc8cce1268a95a1adbd825542Fariborz Jahanian // Do not synthesize more than once. 3110a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (ObjCSynthesizedStructs.count(CDecl)) 3111212b768a4b39479bc8cce1268a95a1adbd825542Fariborz Jahanian return; 3112a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCInterfaceDecl *RCDecl = CDecl->getSuperClass(); 3113f3a7af901231535191d14cb524d58f22907ac4d2Chris Lattner int NumIvars = CDecl->ivar_size(); 31142c7038b298c61e531ee4e79b9ff014ffb97b6cccFariborz Jahanian SourceLocation LocStart = CDecl->getLocStart(); 311505c272fed899b8d3142cf080e86a235fc6168862Douglas Gregor SourceLocation LocEnd = CDecl->getEndOfDefinitionLoc(); 31161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31172c7038b298c61e531ee4e79b9ff014ffb97b6cccFariborz Jahanian const char *startBuf = SM->getCharacterData(LocStart); 31182c7038b298c61e531ee4e79b9ff014ffb97b6cccFariborz Jahanian const char *endBuf = SM->getCharacterData(LocEnd); 31191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3120aff56d0bffdad7ed75db938d5e61e1ce3d5cd195Fariborz Jahanian // If no ivars and no root or if its root, directly or indirectly, 3121f1de0ca05e2df6f23bd559028693a12d1ebdaaf6Fariborz Jahanian // have no ivars (thus not synthesized) then no need to synthesize this class. 31227723fec9b45b7258c0eddf4cbfd0d335348f5edcDouglas Gregor if ((!CDecl->isThisDeclarationADefinition() || NumIvars == 0) && 3123f3a7af901231535191d14cb524d58f22907ac4d2Chris Lattner (!RCDecl || !ObjCSynthesizedStructs.count(RCDecl))) { 31242c78b873f4f3823ae859c15674cb3d76c8554113Chris Lattner endBuf += Lexer::MeasureTokenLength(LocEnd, *SM, LangOpts); 3125d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocStart, endBuf-startBuf, Result); 312626e4cd331c389a9b7d51c91981a7a10c8a909bf4Fariborz Jahanian return; 31272c7038b298c61e531ee4e79b9ff014ffb97b6cccFariborz Jahanian } 31281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // FIXME: This has potential of causing problem. If 3130a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // SynthesizeObjCInternalStruct is ever called recursively. 3131fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff Result += "\nstruct "; 3132d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Result += CDecl->getNameAsString(); 313362ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (LangOpts.MicrosoftExt) 313461ed9caca5dd6a9b9ccee7fb51296234e6cc68adSteve Naroff Result += "_IMPL"; 313505b8c782669d07a71d4889bcacfd53a29cd16fcbSteve Naroff 3136fdc08a06822f7c56cef56e1a813f92565ea8f961Fariborz Jahanian if (NumIvars > 0) { 3137fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff const char *cursor = strchr(startBuf, '{'); 31381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((cursor && endBuf) 3139a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek && "SynthesizeObjCInternalStruct - malformed @interface"); 3140baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // If the buffer contains preprocessor directives, we do more fine-grained 3141baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // rewrites. This is intended to fix code that looks like (which occurs in 3142baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // NSURL.h, for example): 3143baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // 3144baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // #ifdef XYZ 3145baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // @interface Foo : NSObject 3146baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // #else 3147baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // @interface FooBar : NSObject 3148baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // #endif 3149baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // { 3150baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // int i; 3151baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // } 3152baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // @end 3153baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // 3154baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // This clause is segregated to avoid breaking the common case. 3155baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff if (BufferContainsPPDirectives(startBuf, cursor)) { 31561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation L = RCDecl ? CDecl->getSuperClassLoc() : 31571711fc91efb36d131f7ba771f73f0154dc1abd1fArgyrios Kyrtzidis CDecl->getAtStartLoc(); 3158baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff const char *endHeader = SM->getCharacterData(L); 31592c78b873f4f3823ae859c15674cb3d76c8554113Chris Lattner endHeader += Lexer::MeasureTokenLength(L, *SM, LangOpts); 3160baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff 3161cafeb35117578585dbbfef0bc79d8aa27712bc0eChris Lattner if (CDecl->protocol_begin() != CDecl->protocol_end()) { 3162baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // advance to the end of the referenced protocols. 3163baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff while (endHeader < cursor && *endHeader != '>') endHeader++; 3164baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff endHeader++; 3165baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff } 3166baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // rewrite the original header 3167d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocStart, endHeader-startBuf, Result); 3168baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff } else { 3169baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff // rewrite the original header *without* disturbing the '{' 3170d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocStart, cursor-startBuf, Result); 3171baf58c3f1fb13eec46fe339287662f180bb566daSteve Naroff } 3172a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek if (RCDecl && ObjCSynthesizedStructs.count(RCDecl)) { 3173fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff Result = "\n struct "; 3174d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Result += RCDecl->getNameAsString(); 317539bbd9f5918950436821585afc6244b1fe2c7295Steve Naroff Result += "_IMPL "; 3176d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Result += RCDecl->getNameAsString(); 3177819173c41e395744480e8f325dc5c02438420604Steve Naroff Result += "_IVARS;\n"; 31781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3179fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff // insert the super class structure definition. 3180f3dd57e5378bcf5fc9f05832e92479a535d9cd8aChris Lattner SourceLocation OnePastCurly = 3181a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis LocStart.getLocWithOffset(cursor-startBuf+1); 3182d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(OnePastCurly, Result); 3183fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff } 3184fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff cursor++; // past '{' 31851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3186fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff // Now comment out any visibility specifiers. 3187fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff while (cursor < endBuf) { 3188fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff if (*cursor == '@') { 3189a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation atLoc = LocStart.getLocWithOffset(cursor-startBuf); 3190df6a51b0202d10963ed005c2480e3b4a10d16928Chris Lattner // Skip whitespace. 3191df6a51b0202d10963ed005c2480e3b4a10d16928Chris Lattner for (++cursor; cursor[0] == ' ' || cursor[0] == '\t'; ++cursor) 3192df6a51b0202d10963ed005c2480e3b4a10d16928Chris Lattner /*scan*/; 3193df6a51b0202d10963ed005c2480e3b4a10d16928Chris Lattner 3194fdc08a06822f7c56cef56e1a813f92565ea8f961Fariborz Jahanian // FIXME: presence of @public, etc. inside comment results in 3195fdc08a06822f7c56cef56e1a813f92565ea8f961Fariborz Jahanian // this transformation as well, which is still correct c-code. 3196fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff if (!strncmp(cursor, "public", strlen("public")) || 3197fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff !strncmp(cursor, "private", strlen("private")) || 3198c5e327712499caa2a9f3b6591490de8cb7df0b5bSteve Naroff !strncmp(cursor, "package", strlen("package")) || 31999567392e164128d853f0005014114d1ffc06fa86Fariborz Jahanian !strncmp(cursor, "protected", strlen("protected"))) 3200d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(atLoc, "// "); 3201fdc08a06822f7c56cef56e1a813f92565ea8f961Fariborz Jahanian } 32029567392e164128d853f0005014114d1ffc06fa86Fariborz Jahanian // FIXME: If there are cases where '<' is used in ivar declaration part 32039567392e164128d853f0005014114d1ffc06fa86Fariborz Jahanian // of user code, then scan the ivar list and use needToScanForQualifiers 32049567392e164128d853f0005014114d1ffc06fa86Fariborz Jahanian // for type checking. 32059567392e164128d853f0005014114d1ffc06fa86Fariborz Jahanian else if (*cursor == '<') { 3206a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation atLoc = LocStart.getLocWithOffset(cursor-startBuf); 3207d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(atLoc, "/* "); 32089567392e164128d853f0005014114d1ffc06fa86Fariborz Jahanian cursor = strchr(cursor, '>'); 32099567392e164128d853f0005014114d1ffc06fa86Fariborz Jahanian cursor++; 3210a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis atLoc = LocStart.getLocWithOffset(cursor-startBuf); 3211d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer InsertText(atLoc, " */"); 3212ced80a848de94ef44b6e7b4ce6f182249b3141a8Steve Naroff } else if (*cursor == '^') { // rewrite block specifier. 3213a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation caretLoc = LocStart.getLocWithOffset(cursor-startBuf); 3214d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(caretLoc, 1, "*"); 32159567392e164128d853f0005014114d1ffc06fa86Fariborz Jahanian } 3216fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff cursor++; 3217fdc08a06822f7c56cef56e1a813f92565ea8f961Fariborz Jahanian } 3218fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff // Don't forget to add a ';'!! 3219a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis InsertText(LocEnd.getLocWithOffset(1), ";"); 3220fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff } else { // we don't have any instance variables - insert super struct. 32212c78b873f4f3823ae859c15674cb3d76c8554113Chris Lattner endBuf += Lexer::MeasureTokenLength(LocEnd, *SM, LangOpts); 3222fea763e8b02eb907c399883117179e898f2abbf8Steve Naroff Result += " {\n struct "; 3223d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Result += RCDecl->getNameAsString(); 322439bbd9f5918950436821585afc6244b1fe2c7295Steve Naroff Result += "_IMPL "; 3225d9d22dd9c94618490dbffb0e2caf222530ca39d3Chris Lattner Result += RCDecl->getNameAsString(); 3226819173c41e395744480e8f325dc5c02438420604Steve Naroff Result += "_IVARS;\n};\n"; 3227d999b3736ce2646ae0711416b421d906298764dbBenjamin Kramer ReplaceText(LocStart, endBuf-startBuf, Result); 322826e4cd331c389a9b7d51c91981a7a10c8a909bf4Fariborz Jahanian } 322926e4cd331c389a9b7d51c91981a7a10c8a909bf4Fariborz Jahanian // Mark this struct as having been generated. 3230176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (!ObjCSynthesizedStructs.insert(CDecl).second) 3231b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("struct already synthesize- SynthesizeObjCInternalStruct"); 323226e4cd331c389a9b7d51c91981a7a10c8a909bf4Fariborz Jahanian} 323326e4cd331c389a9b7d51c91981a7a10c8a909bf4Fariborz Jahanian 3234d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian//===----------------------------------------------------------------------===// 3235d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// Meta Data Emission 3236d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian//===----------------------------------------------------------------------===// 32371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3239d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// RewriteImplementations - This routine rewrites all method implementations 3240d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// and emits meta-data. 32411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3242d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::RewriteImplementations() { 3243d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int ClsDefCount = ClassImplementation.size(); 3244d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int CatDefCount = CategoryImplementation.size(); 32451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3246d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Rewrite implemented methods 3247d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (int i = 0; i < ClsDefCount; i++) 3248d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteImplementationDecl(ClassImplementation[i]); 3249ab4c4d5e5ececa77aae7e291fafcba3049319cdcChris Lattner 3250d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (int i = 0; i < CatDefCount; i++) 3251d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteImplementationDecl(CategoryImplementation[i]); 32522e6d935930867d93d84d234ada30d93a0371754dFariborz Jahanian} 32532e6d935930867d93d84d234ada30d93a0371754dFariborz Jahanian 3254d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::RewriteByRefString(std::string &ResultStr, 3255d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const std::string &Name, 3256d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ValueDecl *VD, bool def) { 3257d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(BlockByRefDeclNo.count(VD) && 3258d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "RewriteByRefString: ByRef decl missing"); 3259d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (def) 3260d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ResultStr += "struct "; 3261d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ResultStr += "__Block_byref_" + Name + 3262d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "_" + utostr(BlockByRefDeclNo[VD]) ; 3263d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 3264621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff 3265d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianstatic bool HasLocalVariableExternalStorage(ValueDecl *VD) { 3266d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (VarDecl *Var = dyn_cast<VarDecl>(VD)) 3267d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return (Var->isFunctionOrMethodVarDecl() && !Var->hasLocalStorage()); 3268d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return false; 3269d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 32701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3271d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianstd::string RewriteObjC::SynthesizeBlockFunc(BlockExpr *CE, int i, 3272d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef funcName, 3273d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Tag) { 3274d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const FunctionType *AFT = CE->getFunctionType(); 3275651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType RT = AFT->getReturnType(); 3276d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string StructRef = "struct " + Tag; 3277d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string S = "static " + RT.getAsString(Context->getPrintingPolicy()) + " __" + 3278d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian funcName.str() + "_" + "block_func_" + utostr(i); 32791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3280d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockDecl *BD = CE->getBlockDecl(); 32811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3282d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isa<FunctionNoProtoType>(AFT)) { 3283d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // No user-supplied arguments. Still need to pass in a pointer to the 3284d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // block (to reference imported block decl refs). 3285d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "(" + StructRef + " *__cself)"; 3286d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else if (BD->param_empty()) { 3287d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "(" + StructRef + " *__cself)"; 3288d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 3289d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const FunctionProtoType *FT = cast<FunctionProtoType>(AFT); 3290d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(FT && "SynthesizeBlockFunc: No function proto"); 3291d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += '('; 3292d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // first add the implicit argument. 3293d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += StructRef + " *__cself, "; 3294d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string ParamStr; 3295d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (BlockDecl::param_iterator AI = BD->param_begin(), 3296d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = BD->param_end(); AI != E; ++AI) { 3297d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (AI != BD->param_begin()) S += ", "; 3298d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ParamStr = (*AI)->getNameAsString(); 3299d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType QT = (*AI)->getType(); 33002610f90135571be7bf983c80a1cf7bfa0844dc57Fariborz Jahanian (void)convertBlockPointerToFunctionPointer(QT); 33012610f90135571be7bf983c80a1cf7bfa0844dc57Fariborz Jahanian QT.getAsStringInternal(ParamStr, Context->getPrintingPolicy()); 3302d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ParamStr; 33039d0aaa11cd5e657987bbb2d54b63bb0fd18c5117Chris Lattner } 3304d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (FT->isVariadic()) { 3305d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!BD->param_empty()) S += ", "; 3306d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "..."; 3307d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3308d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ')'; 3309621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff } 3310d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " {\n"; 33111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3312d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Create local declarations to avoid rewriting all closure decl ref exprs. 3313d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // First, emit a declaration for all "by ref" decls. 331409d19efaa147762f84aed55efa7930bb3616a4e5Craig Topper for (SmallVectorImpl<ValueDecl *>::iterator I = BlockByRefDecls.begin(), 3315d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = BlockByRefDecls.end(); I != E; ++I) { 3316d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " "; 3317d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Name = (*I)->getNameAsString(); 3318d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string TypeString; 3319d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteByRefString(TypeString, Name, (*I)); 3320d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian TypeString += " *"; 3321d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Name = TypeString + Name; 3322d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += Name + " = __cself->" + (*I)->getNameAsString() + "; // bound by ref\n"; 3323d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3324d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Next, emit a declaration for all "by copy" declarations. 332509d19efaa147762f84aed55efa7930bb3616a4e5Craig Topper for (SmallVectorImpl<ValueDecl *>::iterator I = BlockByCopyDecls.begin(), 3326d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = BlockByCopyDecls.end(); I != E; ++I) { 3327d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " "; 3328d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Handle nested closure invocation. For example: 3329d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 3330d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // void (^myImportedClosure)(void); 3331d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // myImportedClosure = ^(void) { setGlobalInt(x + y); }; 3332d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 3333d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // void (^anotherClosure)(void); 3334d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // anotherClosure = ^(void) { 3335d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // myImportedClosure(); // import and invoke the closure 3336d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // }; 3337d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 3338d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isTopLevelBlockPointerType((*I)->getType())) { 3339d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockPointerTypeVariable(S, (*I)); 3340d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " = ("; 3341d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockPointerType(S, (*I)->getType()); 3342d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ")"; 3343d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "__cself->" + (*I)->getNameAsString() + "; // bound by copy\n"; 3344d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3345d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else { 3346d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Name = (*I)->getNameAsString(); 3347d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType QT = (*I)->getType(); 3348d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasLocalVariableExternalStorage(*I)) 3349d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QT = Context->getPointerType(QT); 3350d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QT.getAsStringInternal(Name, Context->getPrintingPolicy()); 3351d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += Name + " = __cself->" + 3352d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian (*I)->getNameAsString() + "; // bound by copy\n"; 3353e887c0939572f063b07b6ac2df16140c40fcb667Fariborz Jahanian } 3354621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff } 3355d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string RewrittenStr = RewrittenBlockExprs[CE]; 3356d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *cstr = RewrittenStr.c_str(); 3357d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while (*cstr++ != '{') ; 3358d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += cstr; 3359d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "\n"; 3360d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return S; 3361d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 3362621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff 3363d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianstd::string RewriteObjC::SynthesizeBlockHelperFuncs(BlockExpr *CE, int i, 3364d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef funcName, 3365d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Tag) { 3366d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string StructRef = "struct " + Tag; 3367d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string S = "static void __"; 33681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3369d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += funcName; 3370d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "_block_copy_" + utostr(i); 3371d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "(" + StructRef; 3372d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "*dst, " + StructRef; 3373d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "*src) {"; 3374176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines for (ValueDecl *VD : ImportedBlockDecls) { 3375d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "_Block_object_assign((void*)&dst->"; 3376176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines S += VD->getNameAsString(); 3377d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", (void*)src->"; 3378176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines S += VD->getNameAsString(); 3379176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (BlockByRefDeclsPtrSet.count(VD)) 3380d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", " + utostr(BLOCK_FIELD_IS_BYREF) + "/*BLOCK_FIELD_IS_BYREF*/);"; 3381d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (VD->getType()->isBlockPointerType()) 3382d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", " + utostr(BLOCK_FIELD_IS_BLOCK) + "/*BLOCK_FIELD_IS_BLOCK*/);"; 3383d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 3384d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", " + utostr(BLOCK_FIELD_IS_OBJECT) + "/*BLOCK_FIELD_IS_OBJECT*/);"; 33859d0aaa11cd5e657987bbb2d54b63bb0fd18c5117Chris Lattner } 3386d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "}\n"; 3387d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3388d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "\nstatic void __"; 3389d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += funcName; 3390d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "_block_dispose_" + utostr(i); 3391d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "(" + StructRef; 3392d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "*src) {"; 3393176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines for (ValueDecl *VD : ImportedBlockDecls) { 3394d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "_Block_object_dispose((void*)src->"; 3395176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines S += VD->getNameAsString(); 3396176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (BlockByRefDeclsPtrSet.count(VD)) 3397d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", " + utostr(BLOCK_FIELD_IS_BYREF) + "/*BLOCK_FIELD_IS_BYREF*/);"; 3398d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (VD->getType()->isBlockPointerType()) 3399d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", " + utostr(BLOCK_FIELD_IS_BLOCK) + "/*BLOCK_FIELD_IS_BLOCK*/);"; 3400d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 3401d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", " + utostr(BLOCK_FIELD_IS_OBJECT) + "/*BLOCK_FIELD_IS_OBJECT*/);"; 3402621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff } 3403d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "}\n"; 3404d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return S; 3405621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff} 3406621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff 3407d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianstd::string RewriteObjC::SynthesizeBlockImpl(BlockExpr *CE, std::string Tag, 3408d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Desc) { 3409d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string S = "\nstruct " + Tag; 3410d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Constructor = " " + Tag; 34111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3412d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " {\n struct __block_impl impl;\n"; 3413d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " struct " + Desc; 3414d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "* Desc;\n"; 3415621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff 3416d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += "(void *fp, "; // Invoke function pointer. 3417d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += "struct " + Desc; // Descriptor pointer. 3418d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " *desc"; 34191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3420d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (BlockDeclRefs.size()) { 3421d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output all "by copy" declarations. 342209d19efaa147762f84aed55efa7930bb3616a4e5Craig Topper for (SmallVectorImpl<ValueDecl *>::iterator I = BlockByCopyDecls.begin(), 3423d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = BlockByCopyDecls.end(); I != E; ++I) { 3424d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " "; 3425d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string FieldName = (*I)->getNameAsString(); 3426d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string ArgName = "_" + FieldName; 3427d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Handle nested closure invocation. For example: 3428d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 3429d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // void (^myImportedBlock)(void); 3430d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // myImportedBlock = ^(void) { setGlobalInt(x + y); }; 3431d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 3432d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // void (^anotherBlock)(void); 3433d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // anotherBlock = ^(void) { 3434d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // myImportedBlock(); // import and invoke the closure 3435d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // }; 3436d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 3437d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isTopLevelBlockPointerType((*I)->getType())) { 3438d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "struct __block_impl *"; 3439d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += ", void *" + ArgName; 3440d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 3441d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType QT = (*I)->getType(); 3442d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasLocalVariableExternalStorage(*I)) 3443d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QT = Context->getPointerType(QT); 3444d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QT.getAsStringInternal(FieldName, Context->getPrintingPolicy()); 3445d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QT.getAsStringInternal(ArgName, Context->getPrintingPolicy()); 3446d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += ", " + ArgName; 3447d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3448d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += FieldName + ";\n"; 3449d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3450d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output all "by ref" declarations. 345109d19efaa147762f84aed55efa7930bb3616a4e5Craig Topper for (SmallVectorImpl<ValueDecl *>::iterator I = BlockByRefDecls.begin(), 3452d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = BlockByRefDecls.end(); I != E; ++I) { 3453d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " "; 3454d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string FieldName = (*I)->getNameAsString(); 3455d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string ArgName = "_" + FieldName; 3456d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian { 3457d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string TypeString; 3458d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteByRefString(TypeString, FieldName, (*I)); 3459d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian TypeString += " *"; 3460d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FieldName = TypeString + FieldName; 3461d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ArgName = TypeString + ArgName; 3462d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += ", " + ArgName; 3463d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3464d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += FieldName + "; // by ref\n"; 3465d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3466d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Finish writing the constructor. 3467d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += ", int flags=0)"; 3468d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Initialize all "by copy" arguments. 3469d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian bool firsTime = true; 347009d19efaa147762f84aed55efa7930bb3616a4e5Craig Topper for (SmallVectorImpl<ValueDecl *>::iterator I = BlockByCopyDecls.begin(), 3471d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = BlockByCopyDecls.end(); I != E; ++I) { 3472d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Name = (*I)->getNameAsString(); 3473d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (firsTime) { 3474d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " : "; 3475d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian firsTime = false; 3476d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3477d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 3478d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += ", "; 3479d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isTopLevelBlockPointerType((*I)->getType())) 3480d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += Name + "((struct __block_impl *)_" + Name + ")"; 3481d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 3482d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += Name + "(_" + Name + ")"; 3483d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3484d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Initialize all "by ref" arguments. 348509d19efaa147762f84aed55efa7930bb3616a4e5Craig Topper for (SmallVectorImpl<ValueDecl *>::iterator I = BlockByRefDecls.begin(), 3486d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = BlockByRefDecls.end(); I != E; ++I) { 3487d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Name = (*I)->getNameAsString(); 3488d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (firsTime) { 3489d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " : "; 3490d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian firsTime = false; 3491d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3492d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 3493d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += ", "; 3494d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += Name + "(_" + Name + "->__forwarding)"; 3495d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3496d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3497d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " {\n"; 3498d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (GlobalVarDecl) 3499d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " impl.isa = &_NSConcreteGlobalBlock;\n"; 3500d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 3501d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " impl.isa = &_NSConcreteStackBlock;\n"; 3502d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " impl.Flags = flags;\n impl.FuncPtr = fp;\n"; 35031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3504d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " Desc = desc;\n"; 3505d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 3506d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Finish writing the constructor. 3507d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += ", int flags=0) {\n"; 3508d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (GlobalVarDecl) 3509d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " impl.isa = &_NSConcreteGlobalBlock;\n"; 3510d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 3511d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " impl.isa = &_NSConcreteStackBlock;\n"; 3512d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " impl.Flags = flags;\n impl.FuncPtr = fp;\n"; 3513d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " Desc = desc;\n"; 35149d0aaa11cd5e657987bbb2d54b63bb0fd18c5117Chris Lattner } 3515d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += " "; 3516d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Constructor += "}\n"; 3517d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += Constructor; 3518d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "};\n"; 3519d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return S; 35202e6d935930867d93d84d234ada30d93a0371754dFariborz Jahanian} 35212e6d935930867d93d84d234ada30d93a0371754dFariborz Jahanian 3522d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianstd::string RewriteObjC::SynthesizeBlockDescriptor(std::string DescTag, 3523d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string ImplTag, int i, 3524d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef FunName, 3525d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned hasCopy) { 3526d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string S = "\nstatic struct " + DescTag; 3527d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3528d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " {\n unsigned long reserved;\n"; 3529d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " unsigned long Block_size;\n"; 3530d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (hasCopy) { 3531d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " void (*copy)(struct "; 3532d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ImplTag; S += "*, struct "; 3533d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ImplTag; S += "*);\n"; 3534d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3535d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " void (*dispose)(struct "; 3536d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ImplTag; S += "*);\n"; 3537d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3538d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "} "; 3539621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff 3540d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += DescTag + "_DATA = { 0, sizeof(struct "; 3541d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ImplTag + ")"; 3542d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (hasCopy) { 3543d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", __" + FunName.str() + "_block_copy_" + utostr(i); 3544d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", __" + FunName.str() + "_block_dispose_" + utostr(i); 3545d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3546d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "};\n"; 3547d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return S; 3548d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 3549653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor 3550d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::SynthesizeBlockLiterals(SourceLocation FunLocStart, 3551d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef FunName) { 3552d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Insert declaration for the function in which block literal is used. 3553d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CurFunctionDeclToDeclareForBlock && !Blocks.empty()) 3554d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockLiteralFunctionDecl(CurFunctionDeclToDeclareForBlock); 3555d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian bool RewriteSC = (GlobalVarDecl && 3556d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian !Blocks.empty() && 3557d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GlobalVarDecl->getStorageClass() == SC_Static && 3558d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GlobalVarDecl->getType().getCVRQualifiers()); 3559d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (RewriteSC) { 3560d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string SC(" void __"); 3561d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SC += GlobalVarDecl->getNameAsString(); 3562d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SC += "() {}"; 3563d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(FunLocStart, SC); 3564653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor } 3565d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3566d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Insert closures that were part of the function. 3567d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (unsigned i = 0, count=0; i < Blocks.size(); i++) { 3568d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CollectBlockDeclRefInfo(Blocks[i]); 3569d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Need to copy-in the inner copied-in variables not actually used in this 3570d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // block. 3571d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (int j = 0; j < InnerDeclRefsCount[i]; j++) { 3572f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr *Exp = InnerDeclRefs[count++]; 3573d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ValueDecl *VD = Exp->getDecl(); 3574d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockDeclRefs.push_back(Exp); 3575f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (!VD->hasAttr<BlocksAttr>() && !BlockByCopyDeclsPtrSet.count(VD)) { 3576d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByCopyDeclsPtrSet.insert(VD); 3577d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByCopyDecls.push_back(VD); 3578d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3579f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (VD->hasAttr<BlocksAttr>() && !BlockByRefDeclsPtrSet.count(VD)) { 3580d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByRefDeclsPtrSet.insert(VD); 3581d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByRefDecls.push_back(VD); 3582d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3583d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // imported objects in the inner blocks not used in the outer 3584d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // blocks must be copied/disposed in the outer block as well. 3585f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (VD->hasAttr<BlocksAttr>() || 3586d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian VD->getType()->isObjCObjectPointerType() || 3587d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian VD->getType()->isBlockPointerType()) 3588d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ImportedBlockDecls.insert(VD); 3589d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 35901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3591d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string ImplTag = "__" + FunName.str() + "_block_impl_" + utostr(i); 3592d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string DescTag = "__" + FunName.str() + "_block_desc_" + utostr(i); 35931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3594d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string CI = SynthesizeBlockImpl(Blocks[i], ImplTag, DescTag); 35951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3596d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(FunLocStart, CI); 35971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3598d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string CF = SynthesizeBlockFunc(Blocks[i], i, FunName, ImplTag); 35991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3600d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(FunLocStart, CF); 36012e6d935930867d93d84d234ada30d93a0371754dFariborz Jahanian 3602d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ImportedBlockDecls.size()) { 3603d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string HF = SynthesizeBlockHelperFuncs(Blocks[i], i, FunName, ImplTag); 3604d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(FunLocStart, HF); 3605d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3606d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string BD = SynthesizeBlockDescriptor(DescTag, ImplTag, i, FunName, 3607d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ImportedBlockDecls.size() > 0); 3608d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(FunLocStart, BD); 3609d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3610d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockDeclRefs.clear(); 3611d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByRefDecls.clear(); 3612d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByRefDeclsPtrSet.clear(); 3613d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByCopyDecls.clear(); 3614d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByCopyDeclsPtrSet.clear(); 3615d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ImportedBlockDecls.clear(); 3616d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3617d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (RewriteSC) { 3618d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Must insert any 'const/volatile/static here. Since it has been 3619d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // removed as result of rewriting of block literals. 3620d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string SC; 3621d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (GlobalVarDecl->getStorageClass() == SC_Static) 3622d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SC = "static "; 3623d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (GlobalVarDecl->getType().isConstQualified()) 3624d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SC += "const "; 3625d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (GlobalVarDecl->getType().isVolatileQualified()) 3626d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SC += "volatile "; 3627d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (GlobalVarDecl->getType().isRestrictQualified()) 3628d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SC += "restrict "; 3629d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(FunLocStart, SC); 36308f3b2654a9ff6912862f366102f5c46f7757260aSteve Naroff } 3631d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3632d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Blocks.clear(); 3633d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerDeclRefsCount.clear(); 3634d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerDeclRefs.clear(); 3635d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewrittenBlockExprs.clear(); 363626e4cd331c389a9b7d51c91981a7a10c8a909bf4Fariborz Jahanian} 363726e4cd331c389a9b7d51c91981a7a10c8a909bf4Fariborz Jahanian 3638d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::InsertBlockLiteralsWithinFunction(FunctionDecl *FD) { 3639d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation FunLocStart = FD->getTypeSpecStartLoc(); 3640d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef FuncName = FD->getName(); 36412e6d935930867d93d84d234ada30d93a0371754dFariborz Jahanian 3642d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SynthesizeBlockLiterals(FunLocStart, FuncName); 3643d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 36441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3645d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianstatic void BuildUniqueMethodName(std::string &Name, 3646d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCMethodDecl *MD) { 3647d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCInterfaceDecl *IFace = MD->getClassInterface(); 3648d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Name = IFace->getName(); 3649d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Name += "__" + MD->getSelector().getAsString(); 3650d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Convert colons to underscores. 3651d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string::size_type loc = 0; 3652d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while ((loc = Name.find(":", loc)) != std::string::npos) 3653d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Name.replace(loc, 1, "_"); 3654d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 36551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3656d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::InsertBlockLiteralsWithinMethod(ObjCMethodDecl *MD) { 3657d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian //fprintf(stderr,"In InsertBlockLiteralsWitinMethod\n"); 3658d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian //SourceLocation FunLocStart = MD->getLocStart(); 3659d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation FunLocStart = MD->getLocStart(); 3660d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string FuncName; 3661d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BuildUniqueMethodName(FuncName, MD); 3662d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SynthesizeBlockLiterals(FunLocStart, FuncName); 3663d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 36641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3665d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::GetBlockDeclRefExprs(Stmt *S) { 3666d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (Stmt::child_range CI = S->children(); CI; ++CI) 3667d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (*CI) { 3668d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (BlockExpr *CBE = dyn_cast<BlockExpr>(*CI)) 3669d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GetBlockDeclRefExprs(CBE->getBody()); 3670d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 3671d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GetBlockDeclRefExprs(*CI); 3672d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3673d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Handle specific things. 36740e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(S)) 36750e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (DRE->refersToEnclosingVariableOrCapture() || 36760e2c34f92f00628d48968dfea096d36381f494cbStephen Hines HasLocalVariableExternalStorage(DRE->getDecl())) 3677f4b88a45902af1802a1cb42ba48b1c474474f228John McCall // FIXME: Handle enums. 36780e2c34f92f00628d48968dfea096d36381f494cbStephen Hines BlockDeclRefs.push_back(DRE); 36790e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 3680d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 3681d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 36822e6d935930867d93d84d234ada30d93a0371754dFariborz Jahanian 36836b9240e058bf3451685df73fc8ce181b3046e92bCraig Toppervoid RewriteObjC::GetInnerBlockDeclRefExprs(Stmt *S, 36846b9240e058bf3451685df73fc8ce181b3046e92bCraig Topper SmallVectorImpl<DeclRefExpr *> &InnerBlockDeclRefs, 3685176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines llvm::SmallPtrSetImpl<const DeclContext *> &InnerContexts) { 3686d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (Stmt::child_range CI = S->children(); CI; ++CI) 3687d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (*CI) { 3688d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (BlockExpr *CBE = dyn_cast<BlockExpr>(*CI)) { 3689d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerContexts.insert(cast<DeclContext>(CBE->getBlockDecl())); 3690d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GetInnerBlockDeclRefExprs(CBE->getBody(), 3691d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerBlockDeclRefs, 3692d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerContexts); 3693d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3694d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 3695d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GetInnerBlockDeclRefExprs(*CI, 3696d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerBlockDeclRefs, 3697d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerContexts); 36981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3699ccd87b07a714b6e2735a80e89e425ce7fdf6a8d8Fariborz Jahanian } 3700d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Handle specific things. 3701f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(S)) { 37020e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (DRE->refersToEnclosingVariableOrCapture() || 37030e2c34f92f00628d48968dfea096d36381f494cbStephen Hines HasLocalVariableExternalStorage(DRE->getDecl())) { 37040e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (!InnerContexts.count(DRE->getDecl()->getDeclContext())) 3705f4b88a45902af1802a1cb42ba48b1c474474f228John McCall InnerBlockDeclRefs.push_back(DRE); 37060e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (VarDecl *Var = cast<VarDecl>(DRE->getDecl())) 3707f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (Var->isFunctionOrMethodVarDecl()) 3708f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ImportedLocalExternalDecls.insert(Var); 3709f4b88a45902af1802a1cb42ba48b1c474474f228John McCall } 3710d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3711d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3712d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 3713d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 37141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3715d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// convertFunctionTypeOfBlocks - This routine converts a function type 3716d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// whose result type may be a block pointer or whose argument type(s) 3717d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// might be block pointers to an equivalent function type replacing 3718d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// all block pointers to function pointers. 3719d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz JahanianQualType RewriteObjC::convertFunctionTypeOfBlocks(const FunctionType *FT) { 3720d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const FunctionProtoType *FTP = dyn_cast<FunctionProtoType>(FT); 3721d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FTP will be null for closures that don't take arguments. 3722d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Generate a funky cast. 3723d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SmallVector<QualType, 8> ArgTypes; 3724651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType Res = FT->getReturnType(); 3725d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian bool HasBlockType = convertBlockPointerToFunctionPointer(Res); 3726d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3727d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (FTP) { 3728651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto &I : FTP->param_types()) { 3729651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType t = I; 3730d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Make sure we convert "t (^)(...)" to "t (*)(...)". 3731d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (convertBlockPointerToFunctionPointer(t)) 3732d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian HasBlockType = true; 3733d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ArgTypes.push_back(t); 3734d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 37352e6d935930867d93d84d234ada30d93a0371754dFariborz Jahanian } 3736d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType FuncType; 3737d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FIXME. Does this work if block takes no argument but has a return type 3738d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // which is of block type? 3739d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasBlockType) 3740bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose FuncType = getSimpleFunctionType(Res, ArgTypes); 3741d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else FuncType = QualType(FT, 0); 3742d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return FuncType; 3743d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 37441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3745d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz JahanianStmt *RewriteObjC::SynthesizeBlockCall(CallExpr *Exp, const Expr *BlockExp) { 3746d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Navigate to relevant type information. 37476bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const BlockPointerType *CPT = nullptr; 3748653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor 3749d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(BlockExp)) { 3750d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CPT = DRE->getType()->getAs<BlockPointerType>(); 3751d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else if (const MemberExpr *MExpr = dyn_cast<MemberExpr>(BlockExp)) { 3752d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CPT = MExpr->getType()->getAs<BlockPointerType>(); 3753d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3754d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (const ParenExpr *PRE = dyn_cast<ParenExpr>(BlockExp)) { 3755d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return SynthesizeBlockCall(Exp, PRE->getSubExpr()); 3756653f1b1bf293a9bd96fd4dd6372e779cc7af1597Douglas Gregor } 3757d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (const ImplicitCastExpr *IEXPR = dyn_cast<ImplicitCastExpr>(BlockExp)) 3758d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CPT = IEXPR->getType()->getAs<BlockPointerType>(); 3759d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (const ConditionalOperator *CEXPR = 3760d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian dyn_cast<ConditionalOperator>(BlockExp)) { 3761d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *LHSExp = CEXPR->getLHS(); 3762d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmt *LHSStmt = SynthesizeBlockCall(Exp, LHSExp); 3763d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *RHSExp = CEXPR->getRHS(); 3764d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmt *RHSStmt = SynthesizeBlockCall(Exp, RHSExp); 3765d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *CONDExp = CEXPR->getCond(); 3766d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ConditionalOperator *CondExpr = 3767d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian new (Context) ConditionalOperator(CONDExp, 3768d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation(), cast<Expr>(LHSStmt), 3769d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation(), cast<Expr>(RHSStmt), 3770d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Exp->getType(), VK_RValue, OK_Ordinary); 3771d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return CondExpr; 3772d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else if (const ObjCIvarRefExpr *IRE = dyn_cast<ObjCIvarRefExpr>(BlockExp)) { 3773d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CPT = IRE->getType()->getAs<BlockPointerType>(); 3774d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else if (const PseudoObjectExpr *POE 3775d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian = dyn_cast<PseudoObjectExpr>(BlockExp)) { 3776d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CPT = POE->getType()->castAs<BlockPointerType>(); 3777d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 3778d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(1 && "RewriteBlockClass: Bad type"); 3779d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3780d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(CPT && "RewriteBlockClass: Bad type"); 3781d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const FunctionType *FT = CPT->getPointeeType()->getAs<FunctionType>(); 3782d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(FT && "RewriteBlockClass: Bad type"); 3783d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const FunctionProtoType *FTP = dyn_cast<FunctionProtoType>(FT); 3784d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FTP will be null for closures that don't take arguments. 37851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3786d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RecordDecl *RD = RecordDecl::Create(*Context, TTK_Struct, TUDecl, 3787d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation(), SourceLocation(), 3788d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian &Context->Idents.get("__block_impl")); 3789d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType PtrBlock = Context->getPointerType(Context->getTagDeclType(RD)); 37901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3791d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Generate a funky cast. 3792d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SmallVector<QualType, 8> ArgTypes; 37931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3794d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Push the block argument type. 3795d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ArgTypes.push_back(PtrBlock); 3796d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (FTP) { 3797651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto &I : FTP->param_types()) { 3798651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines QualType t = I; 3799d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Make sure we convert "t (^)(...)" to "t (*)(...)". 3800d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!convertBlockPointerToFunctionPointer(t)) 3801d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian convertToUnqualifiedObjCType(t); 3802d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ArgTypes.push_back(t); 3803d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 38049f0a1cb8cf741d8ccd86beb15b50867b0758750fFariborz Jahanian } 3805d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Now do the pointer to function cast. 3806bea522ff43a3f11c7a2bc7949119dbb9fce19e39Jordan Rose QualType PtrToFuncCastType = getSimpleFunctionType(Exp->getType(), ArgTypes); 38071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3808d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian PtrToFuncCastType = Context->getPointerType(PtrToFuncCastType); 38091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3810d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CastExpr *BlkCast = NoTypeInfoCStyleCastExpr(Context, PtrBlock, 3811d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CK_BitCast, 3812d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const_cast<Expr*>(BlockExp)); 3813d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Don't forget the parens to enforce the proper binding. 3814d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ParenExpr *PE = new (Context) ParenExpr(SourceLocation(), SourceLocation(), 3815d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlkCast); 3816d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian //PE->dump(); 3817ccd87b07a714b6e2735a80e89e425ce7fdf6a8d8Fariborz Jahanian 38186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines FieldDecl *FD = FieldDecl::Create(*Context, nullptr, SourceLocation(), 3819d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation(), 3820d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian &Context->Idents.get("FuncPtr"), 38213ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar Context->VoidPtrTy, nullptr, 38223ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar /*BitWidth=*/nullptr, /*Mutable=*/true, 38233ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar ICIS_NoInit); 38243ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar MemberExpr *ME = 38253ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar new (Context) MemberExpr(PE, true, SourceLocation(), FD, SourceLocation(), 38263ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar FD->getType(), VK_LValue, OK_Ordinary); 38273ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar 38283ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar CastExpr *FunkCast = NoTypeInfoCStyleCastExpr(Context, PtrToFuncCastType, 38293ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar CK_BitCast, ME); 38303ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar PE = new (Context) ParenExpr(SourceLocation(), SourceLocation(), FunkCast); 3831d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3832d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SmallVector<Expr*, 8> BlkExprs; 3833d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Add the implicit argument. 3834d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlkExprs.push_back(BlkCast); 3835d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Add the user arguments. 3836d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (CallExpr::arg_iterator I = Exp->arg_begin(), 3837d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = Exp->arg_end(); I != E; ++I) { 3838d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlkExprs.push_back(*I); 3839ccd87b07a714b6e2735a80e89e425ce7fdf6a8d8Fariborz Jahanian } 38403b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer CallExpr *CE = new (Context) CallExpr(*Context, PE, BlkExprs, 3841d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Exp->getType(), VK_RValue, 3842d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation()); 3843d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return CE; 38449f0a1cb8cf741d8ccd86beb15b50867b0758750fFariborz Jahanian} 3845f4d331dd922f92478ebf30e808c0ca97ce49418bFariborz Jahanian 3846d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// We need to return the rewritten expression to handle cases where the 3847d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// BlockDeclRefExpr is embedded in another expression being rewritten. 3848d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// For example: 3849d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// 3850d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// int main() { 3851d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// __block Foo *f; 3852d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// __block int i; 3853d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// 3854d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// void (^myblock)() = ^() { 3855d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// [f test]; // f is a BlockDeclRefExpr embedded in a message (which is being rewritten). 3856d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// i = 77; 3857d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// }; 3858d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian//} 3859f4b88a45902af1802a1cb42ba48b1c474474f228John McCallStmt *RewriteObjC::RewriteBlockDeclRefExpr(DeclRefExpr *DeclRefExp) { 3860d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Rewrite the byref variable into BYREFVAR->__forwarding->BYREFVAR 3861d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // for each DeclRefExp where BYREFVAR is name of the variable. 3862f4b88a45902af1802a1cb42ba48b1c474474f228John McCall ValueDecl *VD = DeclRefExp->getDecl(); 38630e2c34f92f00628d48968dfea096d36381f494cbStephen Hines bool isArrow = DeclRefExp->refersToEnclosingVariableOrCapture() || 38640e2c34f92f00628d48968dfea096d36381f494cbStephen Hines HasLocalVariableExternalStorage(DeclRefExp->getDecl()); 38656bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 38666bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines FieldDecl *FD = FieldDecl::Create(*Context, nullptr, SourceLocation(), 3867d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation(), 3868d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian &Context->Idents.get("__forwarding"), 38693ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar Context->VoidPtrTy, nullptr, 38703ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar /*BitWidth=*/nullptr, /*Mutable=*/true, 38713ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar ICIS_NoInit); 38723ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar MemberExpr *ME = new (Context) 38733ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar MemberExpr(DeclRefExp, isArrow, SourceLocation(), FD, SourceLocation(), 38743ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar FD->getType(), VK_LValue, OK_Ordinary); 38753ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar 38763ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar StringRef Name = VD->getName(); 38773ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar FD = FieldDecl::Create(*Context, nullptr, SourceLocation(), SourceLocation(), 3878d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian &Context->Idents.get(Name), 38793ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar Context->VoidPtrTy, nullptr, 38803ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar /*BitWidth=*/nullptr, /*Mutable=*/true, 38813ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar ICIS_NoInit); 38823ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar ME = 38833ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar new (Context) MemberExpr(ME, true, SourceLocation(), FD, SourceLocation(), 38843ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar DeclRefExp->getType(), VK_LValue, OK_Ordinary); 38853ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar 38863ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar // Need parens to enforce precedence. 38873ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar ParenExpr *PE = new (Context) ParenExpr(DeclRefExp->getExprLoc(), 38883ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar DeclRefExp->getExprLoc(), 3889d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ME); 3890d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceStmt(DeclRefExp, PE); 3891d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return PE; 3892d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 38931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3894d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// Rewrites the imported local variable V with external storage 3895d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// (static, extern, etc.) as *V 3896d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// 3897d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz JahanianStmt *RewriteObjC::RewriteLocalVariableExternalStorage(DeclRefExpr *DRE) { 3898d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ValueDecl *VD = DRE->getDecl(); 3899d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (VarDecl *Var = dyn_cast<VarDecl>(VD)) 3900d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!ImportedLocalExternalDecls.count(Var)) 3901d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return DRE; 3902d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *Exp = new (Context) UnaryOperator(DRE, UO_Deref, DRE->getType(), 3903d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian VK_LValue, OK_Ordinary, 3904d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DRE->getLocation()); 3905d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Need parens to enforce precedence. 3906d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ParenExpr *PE = new (Context) ParenExpr(SourceLocation(), SourceLocation(), 3907d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Exp); 3908d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceStmt(DRE, PE); 3909d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return PE; 3910d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 3911621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff 3912d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::RewriteCastExpr(CStyleCastExpr *CE) { 3913d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation LocStart = CE->getLParenLoc(); 3914d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation LocEnd = CE->getRParenLoc(); 39151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3916d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Need to avoid trying to rewrite synthesized casts. 3917d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (LocStart.isInvalid()) 3918d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 3919d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Need to avoid trying to rewrite casts contained in macros. 3920d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!Rewriter::isRewritable(LocStart) || !Rewriter::isRewritable(LocEnd)) 3921d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 39221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3923d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *startBuf = SM->getCharacterData(LocStart); 3924d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *endBuf = SM->getCharacterData(LocEnd); 3925d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType QT = CE->getType(); 3926d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const Type* TypePtr = QT->getAs<Type>(); 3927d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isa<TypeOfExprType>(TypePtr)) { 3928d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const TypeOfExprType *TypeOfExprTypePtr = cast<TypeOfExprType>(TypePtr); 3929d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QT = TypeOfExprTypePtr->getUnderlyingExpr()->getType(); 3930d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string TypeAsString = "("; 3931d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockPointerType(TypeAsString, QT); 3932d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian TypeAsString += ")"; 3933d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceText(LocStart, endBuf-startBuf+1, TypeAsString); 3934d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 3935ccd87b07a714b6e2735a80e89e425ce7fdf6a8d8Fariborz Jahanian } 3936d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // advance the location to startArgList. 3937d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *argPtr = startBuf; 39381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3939d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while (*argPtr++ && (argPtr < endBuf)) { 3940d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian switch (*argPtr) { 3941d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case '^': 3942d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Replace the '^' with '*'. 3943d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian LocStart = LocStart.getLocWithOffset(argPtr-startBuf); 3944d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceText(LocStart, 1, "*"); 3945d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 3946d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3947ccd87b07a714b6e2735a80e89e425ce7fdf6a8d8Fariborz Jahanian } 3948d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 3949d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 39501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3951d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::RewriteBlockPointerFunctionArgs(FunctionDecl *FD) { 3952d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation DeclLoc = FD->getLocation(); 3953d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned parenCount = 0; 39541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3955d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // We have 1 or more arguments that have closure pointers. 3956d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *startBuf = SM->getCharacterData(DeclLoc); 3957d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *startArgList = strchr(startBuf, '('); 39581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3959d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert((*startArgList == '(') && "Rewriter fuzzy parser confused"); 39601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3961d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian parenCount++; 3962d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // advance the location to startArgList. 3963d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DeclLoc = DeclLoc.getLocWithOffset(startArgList-startBuf); 3964d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert((DeclLoc.isValid()) && "Invalid DeclLoc"); 39654f943c23a47d042c3275e78f2d6015daa650f105Steve Naroff 3966d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *argPtr = startArgList; 3967d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 3968d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while (*argPtr++ && parenCount) { 3969d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian switch (*argPtr) { 3970d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case '^': 3971d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Replace the '^' with '*'. 3972d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DeclLoc = DeclLoc.getLocWithOffset(argPtr-startArgList); 3973d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceText(DeclLoc, 1, "*"); 3974d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 3975d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case '(': 3976d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian parenCount++; 3977d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 3978d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case ')': 3979d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian parenCount--; 3980d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 3981621edce9cd7d4e06979daf911cc306350619f33bSteve Naroff } 39824f943c23a47d042c3275e78f2d6015daa650f105Steve Naroff } 3983d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 3984545b9ae381158761d387d2b5b071f28b1f489ed6Fariborz Jahanian} 3985311ff02fae0392bee6abe7723cdf5a69b2899a47Chris Lattner 3986d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianbool RewriteObjC::PointerTypeTakesAnyBlockArguments(QualType QT) { 3987d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const FunctionProtoType *FTP; 3988d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const PointerType *PT = QT->getAs<PointerType>(); 3989d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PT) { 3990d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FTP = PT->getPointeeType()->getAs<FunctionProtoType>(); 3991d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 3992d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const BlockPointerType *BPT = QT->getAs<BlockPointerType>(); 3993d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(BPT && "BlockPointerTypeTakeAnyBlockArguments(): not a block pointer type"); 3994d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FTP = BPT->getPointeeType()->getAs<FunctionProtoType>(); 3995d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 3996d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (FTP) { 3997651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto &I : FTP->param_types()) 3998651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (isTopLevelBlockPointerType(I)) 3999d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return true; 4000d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 40016cb6eb4c792b504ad652d9230640656852e18ee9Fariborz Jahanian return false; 40026cb6eb4c792b504ad652d9230640656852e18ee9Fariborz Jahanian} 40036cb6eb4c792b504ad652d9230640656852e18ee9Fariborz Jahanian 4004d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianbool RewriteObjC::PointerTypeTakesAnyObjCQualifiedType(QualType QT) { 4005d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const FunctionProtoType *FTP; 4006d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const PointerType *PT = QT->getAs<PointerType>(); 4007d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PT) { 4008d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FTP = PT->getPointeeType()->getAs<FunctionProtoType>(); 400954055232a5ddb9529726e934301b125cb720a273Steve Naroff } else { 4010d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const BlockPointerType *BPT = QT->getAs<BlockPointerType>(); 4011d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(BPT && "BlockPointerTypeTakeAnyBlockArguments(): not a block pointer type"); 4012d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FTP = BPT->getPointeeType()->getAs<FunctionProtoType>(); 40131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 4014d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (FTP) { 4015651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto &I : FTP->param_types()) { 4016651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (I->isObjCQualifiedIdType()) 4017d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return true; 4018651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (I->isObjCObjectPointerType() && 4019651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines I->getPointeeType()->isObjCQualifiedInterfaceType()) 4020d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return true; 4021e8c28dffce846b1783fd11cc130b4be4f9894301Fariborz Jahanian } 4022d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 402354055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4024d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return false; 402554055232a5ddb9529726e934301b125cb720a273Steve Naroff} 402654055232a5ddb9529726e934301b125cb720a273Steve Naroff 4027d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::GetExtentOfArgList(const char *Name, const char *&LParen, 4028d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *&RParen) { 4029d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *argPtr = strchr(Name, '('); 4030d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert((*argPtr == '(') && "Rewriter fuzzy parser confused"); 40311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4032d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian LParen = argPtr; // output the start. 4033d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian argPtr++; // skip past the left paren. 4034d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned parenCount = 1; 4035d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4036d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while (*argPtr && parenCount) { 4037d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian switch (*argPtr) { 4038d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case '(': parenCount++; break; 4039d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case ')': parenCount--; break; 4040d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian default: break; 4041d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4042d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (parenCount) argPtr++; 404354055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4044d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert((*argPtr == ')') && "Rewriter fuzzy parser confused"); 4045d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RParen = argPtr; // output the end 404654055232a5ddb9529726e934301b125cb720a273Steve Naroff} 4047ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis 4048d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::RewriteBlockPointerDecl(NamedDecl *ND) { 4049d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (FunctionDecl *FD = dyn_cast<FunctionDecl>(ND)) { 4050d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockPointerFunctionArgs(FD); 4051d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 4052d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4053d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Handle Variables and Typedefs. 4054d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation DeclLoc = ND->getLocation(); 4055d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType DeclT; 4056d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (VarDecl *VD = dyn_cast<VarDecl>(ND)) 4057d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DeclT = VD->getType(); 4058d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (TypedefNameDecl *TDD = dyn_cast<TypedefNameDecl>(ND)) 4059d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DeclT = TDD->getUnderlyingType(); 4060d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (FieldDecl *FD = dyn_cast<FieldDecl>(ND)) 4061d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DeclT = FD->getType(); 4062d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 4063d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian llvm_unreachable("RewriteBlockPointerDecl(): Decl type not yet handled"); 4064d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4065d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *startBuf = SM->getCharacterData(DeclLoc); 4066d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *endBuf = startBuf; 4067d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // scan backward (from the decl location) for the end of the previous decl. 4068d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while (*startBuf != '^' && *startBuf != ';' && startBuf != MainFileStart) 4069d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian startBuf--; 4070d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation Start = DeclLoc.getLocWithOffset(startBuf-endBuf); 4071d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string buf; 4072d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned OrigLength=0; 4073d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // *startBuf != '^' if we are dealing with a pointer to function that 4074d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // may take block argument types (which will be handled below). 4075d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (*startBuf == '^') { 4076d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Replace the '^' with '*', computing a negative offset. 4077d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf = '*'; 4078d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian startBuf++; 4079d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OrigLength++; 4080d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4081d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while (*startBuf != ')') { 4082d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += *startBuf; 4083d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian startBuf++; 4084d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OrigLength++; 4085d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4086d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += ')'; 4087d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OrigLength++; 4088d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4089d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PointerTypeTakesAnyBlockArguments(DeclT) || 4090d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian PointerTypeTakesAnyObjCQualifiedType(DeclT)) { 4091d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Replace the '^' with '*' for arguments. 4092d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Replace id<P> with id/*<>*/ 4093d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DeclLoc = ND->getLocation(); 4094d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian startBuf = SM->getCharacterData(DeclLoc); 4095d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *argListBegin, *argListEnd; 4096d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GetExtentOfArgList(startBuf, argListBegin, argListEnd); 4097d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while (argListBegin < argListEnd) { 4098d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (*argListBegin == '^') 4099d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += '*'; 4100d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (*argListBegin == '<') { 4101d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += "/*"; 4102d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += *argListBegin++; 41031ad23d62007162df82b58bca31b4aa277a5f6586Dmitri Gribenko OrigLength++; 4104d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while (*argListBegin != '>') { 4105d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += *argListBegin++; 4106d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OrigLength++; 410720432ef377e8ebcf2933d3f568eaf72766b06116Fariborz Jahanian } 4108d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += *argListBegin; 4109d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += "*/"; 411020432ef377e8ebcf2933d3f568eaf72766b06116Fariborz Jahanian } 411120432ef377e8ebcf2933d3f568eaf72766b06116Fariborz Jahanian else 4112d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += *argListBegin; 4113d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian argListBegin++; 4114d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OrigLength++; 411554055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4116d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian buf += ')'; 4117d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OrigLength++; 411854055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4119d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceText(Start, OrigLength, buf); 4120d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4121d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 412254055232a5ddb9529726e934301b125cb720a273Steve Naroff} 412339ba4aeca296b1c9f04bde7d9d3cbbf129f1abd3Argyrios Kyrtzidis 412401aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff 4125d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// SynthesizeByrefCopyDestroyHelper - This routine synthesizes: 4126d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// void __Block_byref_id_object_copy(struct Block_byref_id_object *dst, 4127d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// struct Block_byref_id_object *src) { 4128d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// _Block_object_assign (&_dest->object, _src->object, 4129d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// BLOCK_BYREF_CALLER | BLOCK_FIELD_IS_OBJECT 4130d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// [|BLOCK_FIELD_IS_WEAK]) // object 4131d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// _Block_object_assign(&_dest->object, _src->object, 4132d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// BLOCK_BYREF_CALLER | BLOCK_FIELD_IS_BLOCK 4133d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// [|BLOCK_FIELD_IS_WEAK]) // block 4134d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// } 4135d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// And: 4136d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// void __Block_byref_id_object_dispose(struct Block_byref_id_object *_src) { 4137d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// _Block_object_dispose(_src->object, 4138d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// BLOCK_BYREF_CALLER | BLOCK_FIELD_IS_OBJECT 4139d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// [|BLOCK_FIELD_IS_WEAK]) // object 4140d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// _Block_object_dispose(_src->object, 4141d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// BLOCK_BYREF_CALLER | BLOCK_FIELD_IS_BLOCK 4142d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// [|BLOCK_FIELD_IS_WEAK]) // block 4143d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// } 4144d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4145d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianstd::string RewriteObjC::SynthesizeByrefCopyDestroyHelper(VarDecl *VD, 4146d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int flag) { 4147d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string S; 4148d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CopyDestroyCache.count(flag)) 4149d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return S; 4150d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CopyDestroyCache.insert(flag); 4151d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S = "static void __Block_byref_id_object_copy_"; 4152d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += utostr(flag); 4153d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "(void *dst, void *src) {\n"; 4154d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4155d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // offset into the object pointer is computed as: 4156d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // void * + void* + int + int + void* + void * 4157d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned IntSize = 4158d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian static_cast<unsigned>(Context->getTypeSize(Context->IntTy)); 4159d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned VoidPtrSize = 4160d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian static_cast<unsigned>(Context->getTypeSize(Context->VoidPtrTy)); 4161d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4162d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned offset = (VoidPtrSize*4 + IntSize + IntSize)/Context->getCharWidth(); 4163d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " _Block_object_assign((char*)dst + "; 4164d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += utostr(offset); 4165d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ", *(void * *) ((char*)src + "; 4166d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += utostr(offset); 4167d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "), "; 4168d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += utostr(flag); 4169d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ");\n}\n"; 4170d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4171d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "static void __Block_byref_id_object_dispose_"; 4172d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += utostr(flag); 4173d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "(void *src) {\n"; 4174d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += " _Block_object_dispose(*(void * *) ((char*)src + "; 4175d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += utostr(offset); 4176d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += "), "; 4177d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += utostr(flag); 4178d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian S += ");\n}\n"; 417901aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff return S; 418001aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff} 418101aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff 4182d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// RewriteByRefVar - For each __block typex ND variable this routine transforms 4183d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// the declaration into: 4184d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// struct __Block_byref_ND { 4185d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// void *__isa; // NULL for everything except __weak pointers 4186d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// struct __Block_byref_ND *__forwarding; 4187d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// int32_t __flags; 4188d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// int32_t __size; 4189d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// void *__Block_byref_id_object_copy; // If variable is __block ObjC object 4190d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// void *__Block_byref_id_object_dispose; // If variable is __block ObjC object 4191d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// typex ND; 4192d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// }; 4193d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// 4194d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// It then replaces declaration of ND variable with: 4195d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// struct __Block_byref_ND ND = {__isa=0B, __forwarding=&ND, __flags=some_flag, 4196d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// __size=sizeof(struct __Block_byref_ND), 4197d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// ND=initializer-if-any}; 4198d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// 4199d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// 4200d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::RewriteByRefVar(VarDecl *ND) { 4201d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Insert declaration for the function in which block literal is 4202d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // used. 4203d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CurFunctionDeclToDeclareForBlock) 4204d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockLiteralFunctionDecl(CurFunctionDeclToDeclareForBlock); 4205d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int flag = 0; 4206d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int isa = 0; 4207d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation DeclLoc = ND->getTypeSpecStartLoc(); 4208d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (DeclLoc.isInvalid()) 4209d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // If type location is missing, it is because of missing type (a warning). 4210d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Use variable's location which is good for this case. 4211d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DeclLoc = ND->getLocation(); 4212d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *startBuf = SM->getCharacterData(DeclLoc); 4213d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation X = ND->getLocEnd(); 4214d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian X = SM->getExpansionLoc(X); 4215d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *endBuf = SM->getCharacterData(X); 4216d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Name(ND->getNameAsString()); 4217d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string ByrefType; 4218d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteByRefString(ByrefType, Name, ND, true); 4219d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " {\n"; 4220d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " void *__isa;\n"; 4221d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteByRefString(ByrefType, Name, ND); 4222d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " *__forwarding;\n"; 4223d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " int __flags;\n"; 4224d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " int __size;\n"; 4225d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Add void *__Block_byref_id_object_copy; 4226d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // void *__Block_byref_id_object_dispose; if needed. 4227d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType Ty = ND->getType(); 4228b15c8984ea300624fbbde385d3907667ce1043faFariborz Jahanian bool HasCopyAndDispose = Context->BlockRequiresCopying(Ty, ND); 4229d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasCopyAndDispose) { 4230d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " void (*__Block_byref_id_object_copy)(void*, void*);\n"; 4231d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " void (*__Block_byref_id_object_dispose)(void*);\n"; 4232d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4233d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4234d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType T = Ty; 4235d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian (void)convertBlockPointerToFunctionPointer(T); 4236d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian T.getAsStringInternal(Name, Context->getPrintingPolicy()); 4237d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4238d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " " + Name + ";\n"; 4239d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += "};\n"; 4240d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Insert this type in global scope. It is needed by helper function. 4241d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation FunLocStart; 4242d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CurFunctionDef) 4243d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FunLocStart = CurFunctionDef->getTypeSpecStartLoc(); 4244d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else { 4245d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(CurMethodDef && "RewriteByRefVar - CurMethodDef is null"); 4246d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FunLocStart = CurMethodDef->getLocStart(); 4247d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4248d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(FunLocStart, ByrefType); 4249d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (Ty.isObjCGCWeak()) { 4250d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian flag |= BLOCK_FIELD_IS_WEAK; 4251d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian isa = 1; 4252d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 42538611eb02e8296bd31ffa31b6eafefd76dd1e299cFariborz Jahanian 4254d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasCopyAndDispose) { 4255d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian flag = BLOCK_BYREF_CALLER; 4256d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType Ty = ND->getType(); 4257d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FIXME. Handle __weak variable (BLOCK_FIELD_IS_WEAK) as well. 4258d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (Ty->isBlockPointerType()) 4259d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian flag |= BLOCK_FIELD_IS_BLOCK; 4260d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 4261d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian flag |= BLOCK_FIELD_IS_OBJECT; 4262d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string HF = SynthesizeByrefCopyDestroyHelper(ND, flag); 4263d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!HF.empty()) 4264d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(FunLocStart, HF); 4265d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4266d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4267d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // struct __Block_byref_ND ND = 4268d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // {0, &ND, some_flag, __size=sizeof(struct __Block_byref_ND), 4269d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // initializer-if-any}; 42706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool hasInit = (ND->getInit() != nullptr); 4271d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned flags = 0; 4272d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasCopyAndDispose) 4273d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian flags |= BLOCK_HAS_COPY_DISPOSE; 4274d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Name = ND->getNameAsString(); 4275d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType.clear(); 4276d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteByRefString(ByrefType, Name, ND); 4277d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string ForwardingCastType("("); 4278d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ForwardingCastType += ByrefType + " *)"; 4279d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!hasInit) { 4280d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " " + Name + " = {(void*)"; 4281d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += utostr(isa); 4282d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += "," + ForwardingCastType + "&" + Name + ", "; 4283d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += utostr(flags); 4284d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += ", "; 4285d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += "sizeof("; 4286d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteByRefString(ByrefType, Name, ND); 4287d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += ")"; 4288d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasCopyAndDispose) { 4289d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += ", __Block_byref_id_object_copy_"; 4290d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += utostr(flag); 4291d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += ", __Block_byref_id_object_dispose_"; 4292d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += utostr(flag); 4293d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4294d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += "};\n"; 4295d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned nameSize = Name.size(); 4296d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // for block or function pointer declaration. Name is aleady 4297d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // part of the declaration. 4298d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (Ty->isBlockPointerType() || Ty->isFunctionPointerType()) 4299d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian nameSize = 1; 4300d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceText(DeclLoc, endBuf-startBuf+nameSize, ByrefType); 4301d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4302d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else { 4303d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation startLoc; 4304d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *E = ND->getInit(); 4305d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (const CStyleCastExpr *ECE = dyn_cast<CStyleCastExpr>(E)) 4306d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian startLoc = ECE->getLParenLoc(); 4307d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 4308d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian startLoc = E->getLocStart(); 4309d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian startLoc = SM->getExpansionLoc(startLoc); 4310d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian endBuf = SM->getCharacterData(startLoc); 4311d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " " + Name; 4312d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += " = {(void*)"; 4313d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += utostr(isa); 4314d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += "," + ForwardingCastType + "&" + Name + ", "; 4315d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += utostr(flags); 4316d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += ", "; 4317d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += "sizeof("; 4318d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteByRefString(ByrefType, Name, ND); 4319d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += "), "; 4320d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasCopyAndDispose) { 4321d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += "__Block_byref_id_object_copy_"; 4322d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += utostr(flag); 4323d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += ", __Block_byref_id_object_dispose_"; 4324d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += utostr(flag); 4325d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ByrefType += ", "; 4326d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4327d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceText(DeclLoc, endBuf-startBuf, ByrefType); 4328d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4329d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Complete the newly synthesized compound expression by inserting a right 4330d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // curly brace before the end of the declaration. 4331d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FIXME: This approach avoids rewriting the initializer expression. It 4332d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // also assumes there is only one declarator. For example, the following 4333d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // isn't currently supported by this routine (in general): 4334d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 4335d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // double __block BYREFVAR = 1.34, BYREFVAR2 = 1.37; 4336d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 4337d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *startInitializerBuf = SM->getCharacterData(startLoc); 4338d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *semiBuf = strchr(startInitializerBuf, ';'); 4339d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert((*semiBuf == ';') && "RewriteByRefVar: can't find ';'"); 4340d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation semiLoc = 4341d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian startLoc.getLocWithOffset(semiBuf-startInitializerBuf); 4342d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4343d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(semiLoc, "}"); 4344d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4345d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 4346d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 4347d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4348d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::CollectBlockDeclRefInfo(BlockExpr *Exp) { 4349d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Add initializers for any closure decl refs. 4350d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GetBlockDeclRefExprs(Exp->getBody()); 4351d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (BlockDeclRefs.size()) { 4352d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Unique all "by copy" declarations. 4353d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (unsigned i = 0; i < BlockDeclRefs.size(); i++) 4354f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (!BlockDeclRefs[i]->getDecl()->hasAttr<BlocksAttr>()) { 4355d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!BlockByCopyDeclsPtrSet.count(BlockDeclRefs[i]->getDecl())) { 4356d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByCopyDeclsPtrSet.insert(BlockDeclRefs[i]->getDecl()); 4357d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByCopyDecls.push_back(BlockDeclRefs[i]->getDecl()); 4358d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4359d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4360d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Unique all "by ref" declarations. 4361d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (unsigned i = 0; i < BlockDeclRefs.size(); i++) 4362f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (BlockDeclRefs[i]->getDecl()->hasAttr<BlocksAttr>()) { 4363d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!BlockByRefDeclsPtrSet.count(BlockDeclRefs[i]->getDecl())) { 4364d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByRefDeclsPtrSet.insert(BlockDeclRefs[i]->getDecl()); 4365d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByRefDecls.push_back(BlockDeclRefs[i]->getDecl()); 4366d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4367d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4368d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Find any imported blocks...they will need special attention. 4369d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (unsigned i = 0; i < BlockDeclRefs.size(); i++) 4370f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (BlockDeclRefs[i]->getDecl()->hasAttr<BlocksAttr>() || 4371d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockDeclRefs[i]->getType()->isObjCObjectPointerType() || 4372d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockDeclRefs[i]->getType()->isBlockPointerType()) 4373d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ImportedBlockDecls.insert(BlockDeclRefs[i]->getDecl()); 4374d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4375d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 4376d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4377d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz JahanianFunctionDecl *RewriteObjC::SynthBlockInitFunctionDecl(StringRef name) { 4378d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IdentifierInfo *ID = &Context->Idents.get(name); 4379d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType FType = Context->getFunctionNoProtoType(Context->VoidPtrTy); 4380d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return FunctionDecl::Create(*Context, TUDecl, SourceLocation(), 43816bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines SourceLocation(), ID, FType, nullptr, SC_Extern, 4382d2615cc53b916e8aae45783ca7113b93de515ce3Rafael Espindola false, false); 4383d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 4384d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4385d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz JahanianStmt *RewriteObjC::SynthBlockInitExpr(BlockExpr *Exp, 43866b9240e058bf3451685df73fc8ce181b3046e92bCraig Topper const SmallVectorImpl<DeclRefExpr *> &InnerBlockDeclRefs) { 4387d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const BlockDecl *block = Exp->getBlockDecl(); 4388d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Blocks.push_back(Exp); 4389d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4390d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CollectBlockDeclRefInfo(Exp); 4391d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4392d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Add inner imported variables now used in current block. 4393d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int countOfInnerDecls = 0; 4394d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!InnerBlockDeclRefs.empty()) { 4395d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (unsigned i = 0; i < InnerBlockDeclRefs.size(); i++) { 4396f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr *Exp = InnerBlockDeclRefs[i]; 439772952fc11f80c975492a2a1e0f6e3601c5252e0aFariborz Jahanian ValueDecl *VD = Exp->getDecl(); 4398f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (!VD->hasAttr<BlocksAttr>() && !BlockByCopyDeclsPtrSet.count(VD)) { 4399d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // We need to save the copied-in variables in nested 4400d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // blocks because it is needed at the end for some of the API generations. 4401d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // See SynthesizeBlockLiterals routine. 4402d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerDeclRefs.push_back(Exp); countOfInnerDecls++; 4403d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockDeclRefs.push_back(Exp); 440472952fc11f80c975492a2a1e0f6e3601c5252e0aFariborz Jahanian BlockByCopyDeclsPtrSet.insert(VD); 440572952fc11f80c975492a2a1e0f6e3601c5252e0aFariborz Jahanian BlockByCopyDecls.push_back(VD); 440672952fc11f80c975492a2a1e0f6e3601c5252e0aFariborz Jahanian } 4407f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (VD->hasAttr<BlocksAttr>() && !BlockByRefDeclsPtrSet.count(VD)) { 4408d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerDeclRefs.push_back(Exp); countOfInnerDecls++; 4409d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockDeclRefs.push_back(Exp); 441072952fc11f80c975492a2a1e0f6e3601c5252e0aFariborz Jahanian BlockByRefDeclsPtrSet.insert(VD); 441172952fc11f80c975492a2a1e0f6e3601c5252e0aFariborz Jahanian BlockByRefDecls.push_back(VD); 441272952fc11f80c975492a2a1e0f6e3601c5252e0aFariborz Jahanian } 441372952fc11f80c975492a2a1e0f6e3601c5252e0aFariborz Jahanian } 4414d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Find any imported blocks...they will need special attention. 4415d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (unsigned i = 0; i < InnerBlockDeclRefs.size(); i++) 4416f4b88a45902af1802a1cb42ba48b1c474474f228John McCall if (InnerBlockDeclRefs[i]->getDecl()->hasAttr<BlocksAttr>() || 4417d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerBlockDeclRefs[i]->getType()->isObjCObjectPointerType() || 4418d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerBlockDeclRefs[i]->getType()->isBlockPointerType()) 4419d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ImportedBlockDecls.insert(InnerBlockDeclRefs[i]->getDecl()); 4420d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4421d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerDeclRefsCount.push_back(countOfInnerDecls); 4422d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4423d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string FuncName; 442454055232a5ddb9529726e934301b125cb720a273Steve Naroff 4425d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CurFunctionDef) 4426d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FuncName = CurFunctionDef->getNameAsString(); 4427d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (CurMethodDef) 4428d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BuildUniqueMethodName(FuncName, CurMethodDef); 4429d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (GlobalVarDecl) 4430d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FuncName = std::string(GlobalVarDecl->getNameAsString()); 44311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4432d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string BlockNumber = utostr(Blocks.size()-1); 443354055232a5ddb9529726e934301b125cb720a273Steve Naroff 4434d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Tag = "__" + FuncName + "_block_impl_" + BlockNumber; 4435d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Func = "__" + FuncName + "_block_func_" + BlockNumber; 443654055232a5ddb9529726e934301b125cb720a273Steve Naroff 4437d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Get a pointer to the function type so we can cast appropriately. 4438d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType BFT = convertFunctionTypeOfBlocks(Exp->getFunctionType()); 4439d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType FType = Context->getPointerType(BFT); 44401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4441d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FunctionDecl *FD; 4442d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *NewRep; 444354055232a5ddb9529726e934301b125cb720a273Steve Naroff 4444e575359c34a9248c55ec0c03a8fc945f1ee4cb01Benjamin Kramer // Simulate a constructor call... 4445d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FD = SynthBlockInitFunctionDecl(Tag); 4446f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr *DRE = new (Context) DeclRefExpr(FD, false, FType, VK_RValue, 4447d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation()); 44481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4449d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SmallVector<Expr*, 4> InitExprs; 4450d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4451d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Initialize the block function. 4452d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FD = SynthBlockInitFunctionDecl(Func); 4453f4b88a45902af1802a1cb42ba48b1c474474f228John McCall DeclRefExpr *Arg = new (Context) DeclRefExpr(FD, false, FD->getType(), 4454f4b88a45902af1802a1cb42ba48b1c474474f228John McCall VK_LValue, SourceLocation()); 4455d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CastExpr *castExpr = NoTypeInfoCStyleCastExpr(Context, Context->VoidPtrTy, 4456d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CK_BitCast, Arg); 4457d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InitExprs.push_back(castExpr); 4458d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4459d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Initialize the block descriptor. 4460d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string DescData = "__" + FuncName + "_block_desc_" + BlockNumber + "_DATA"; 4461d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4462d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian VarDecl *NewVD = VarDecl::Create(*Context, TUDecl, 4463d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation(), SourceLocation(), 4464d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian &Context->Idents.get(DescData.c_str()), 44656bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Context->VoidPtrTy, nullptr, 4466d2615cc53b916e8aae45783ca7113b93de515ce3Rafael Espindola SC_Static); 4467d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian UnaryOperator *DescRefExpr = 4468f4b88a45902af1802a1cb42ba48b1c474474f228John McCall new (Context) UnaryOperator(new (Context) DeclRefExpr(NewVD, false, 4469d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Context->VoidPtrTy, 4470d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian VK_LValue, 4471d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation()), 4472d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian UO_AddrOf, 4473d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Context->getPointerType(Context->VoidPtrTy), 4474d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian VK_RValue, OK_Ordinary, 4475d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation()); 4476d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InitExprs.push_back(DescRefExpr); 4477d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4478d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Add initializers for any closure decl refs. 4479d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (BlockDeclRefs.size()) { 4480d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *Exp; 4481d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output all "by copy" declarations. 448209d19efaa147762f84aed55efa7930bb3616a4e5Craig Topper for (SmallVectorImpl<ValueDecl *>::iterator I = BlockByCopyDecls.begin(), 4483d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = BlockByCopyDecls.end(); I != E; ++I) { 4484d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isObjCType((*I)->getType())) { 4485d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FIXME: Conform to ABI ([[obj retain] autorelease]). 4486d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FD = SynthBlockInitFunctionDecl((*I)->getName()); 4487f4b88a45902af1802a1cb42ba48b1c474474f228John McCall Exp = new (Context) DeclRefExpr(FD, false, FD->getType(), VK_LValue, 4488d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation()); 4489d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasLocalVariableExternalStorage(*I)) { 4490d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType QT = (*I)->getType(); 4491d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QT = Context->getPointerType(QT); 4492d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Exp = new (Context) UnaryOperator(Exp, UO_AddrOf, QT, VK_RValue, 4493d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OK_Ordinary, SourceLocation()); 4494d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4495d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else if (isTopLevelBlockPointerType((*I)->getType())) { 4496d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FD = SynthBlockInitFunctionDecl((*I)->getName()); 4497f4b88a45902af1802a1cb42ba48b1c474474f228John McCall Arg = new (Context) DeclRefExpr(FD, false, FD->getType(), VK_LValue, 4498d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation()); 4499d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Exp = NoTypeInfoCStyleCastExpr(Context, Context->VoidPtrTy, 4500d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CK_BitCast, Arg); 4501d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 4502d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FD = SynthBlockInitFunctionDecl((*I)->getName()); 4503f4b88a45902af1802a1cb42ba48b1c474474f228John McCall Exp = new (Context) DeclRefExpr(FD, false, FD->getType(), VK_LValue, 4504d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation()); 4505d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasLocalVariableExternalStorage(*I)) { 4506d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType QT = (*I)->getType(); 4507d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QT = Context->getPointerType(QT); 4508d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Exp = new (Context) UnaryOperator(Exp, UO_AddrOf, QT, VK_RValue, 4509d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OK_Ordinary, SourceLocation()); 4510d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4511d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4512d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4513d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InitExprs.push_back(Exp); 4514d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4515d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output all "by ref" declarations. 451609d19efaa147762f84aed55efa7930bb3616a4e5Craig Topper for (SmallVectorImpl<ValueDecl *>::iterator I = BlockByRefDecls.begin(), 4517d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian E = BlockByRefDecls.end(); I != E; ++I) { 4518d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ValueDecl *ND = (*I); 4519d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Name(ND->getNameAsString()); 4520d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string RecName; 4521d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteByRefString(RecName, Name, ND, true); 4522d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IdentifierInfo *II = &Context->Idents.get(RecName.c_str() 4523d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian + sizeof("struct")); 4524d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RecordDecl *RD = RecordDecl::Create(*Context, TTK_Struct, TUDecl, 4525d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation(), SourceLocation(), 4526d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian II); 4527d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(RD && "SynthBlockInitExpr(): Can't find RecordDecl"); 4528d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType castT = Context->getPointerType(Context->getTagDeclType(RD)); 4529d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4530d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FD = SynthBlockInitFunctionDecl((*I)->getName()); 4531f4b88a45902af1802a1cb42ba48b1c474474f228John McCall Exp = new (Context) DeclRefExpr(FD, false, FD->getType(), VK_LValue, 4532d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation()); 4533d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian bool isNestedCapturedVar = false; 4534d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (block) 4535651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto &CI : block->captures()) { 4536651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const VarDecl *variable = CI.getVariable(); 4537651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (variable == ND && CI.isNested()) { 4538651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines assert (CI.isByRef() && 4539d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "SynthBlockInitExpr - captured block variable is not byref"); 4540d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian isNestedCapturedVar = true; 4541d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 4542d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4543d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4544d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // captured nested byref variable has its address passed. Do not take 4545d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // its address again. 4546d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!isNestedCapturedVar) 4547d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Exp = new (Context) UnaryOperator(Exp, UO_AddrOf, 4548d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Context->getPointerType(Exp->getType()), 4549d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian VK_RValue, OK_Ordinary, SourceLocation()); 4550d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Exp = NoTypeInfoCStyleCastExpr(Context, castT, CK_BitCast, Exp); 4551d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InitExprs.push_back(Exp); 4552d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 455354055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4554d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ImportedBlockDecls.size()) { 4555d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // generate BLOCK_HAS_COPY_DISPOSE(have helper funcs) | BLOCK_HAS_DESCRIPTOR 4556d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int flag = (BLOCK_HAS_COPY_DISPOSE | BLOCK_HAS_DESCRIPTOR); 4557d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned IntSize = 4558d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian static_cast<unsigned>(Context->getTypeSize(Context->IntTy)); 4559d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *FlagExp = IntegerLiteral::Create(*Context, llvm::APInt(IntSize, flag), 4560d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Context->IntTy, SourceLocation()); 4561d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InitExprs.push_back(FlagExp); 456261b82e3ed67d9c02d8cc0a8c5976e5fb7fad12a8Fariborz Jahanian } 45633b6bef9a213249c6ab6d67c07b1ac6380961be3eBenjamin Kramer NewRep = new (Context) CallExpr(*Context, DRE, InitExprs, 4564d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FType, VK_LValue, SourceLocation()); 4565d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian NewRep = new (Context) UnaryOperator(NewRep, UO_AddrOf, 4566d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Context->getPointerType(NewRep->getType()), 4567d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian VK_RValue, OK_Ordinary, SourceLocation()); 4568d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian NewRep = NoTypeInfoCStyleCastExpr(Context, FType, CK_BitCast, 4569d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian NewRep); 4570d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockDeclRefs.clear(); 4571d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByRefDecls.clear(); 4572d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByRefDeclsPtrSet.clear(); 4573d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByCopyDecls.clear(); 4574d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByCopyDeclsPtrSet.clear(); 4575d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ImportedBlockDecls.clear(); 4576d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return NewRep; 457754055232a5ddb9529726e934301b125cb720a273Steve Naroff} 457854055232a5ddb9529726e934301b125cb720a273Steve Naroff 4579d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianbool RewriteObjC::IsDeclStmtInForeachHeader(DeclStmt *DS) { 4580d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (const ObjCForCollectionStmt * CS = 4581d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian dyn_cast<ObjCForCollectionStmt>(Stmts.back())) 4582d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return CS->getElement() == DS; 4583d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return false; 458454055232a5ddb9529726e934301b125cb720a273Steve Naroff} 458554055232a5ddb9529726e934301b125cb720a273Steve Naroff 4586d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian//===----------------------------------------------------------------------===// 4587d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// Function Body / Expression rewriting 4588d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian//===----------------------------------------------------------------------===// 4589e61a1d4c57bbce3dfaa191a4b4de48ad79ac0b83Fariborz Jahanian 4590d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz JahanianStmt *RewriteObjC::RewriteFunctionBodyOrGlobalInitializer(Stmt *S) { 4591d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isa<SwitchStmt>(S) || isa<WhileStmt>(S) || 4592d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian isa<DoStmt>(S) || isa<ForStmt>(S)) 4593d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmts.push_back(S); 4594d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (isa<ObjCForCollectionStmt>(S)) { 4595d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmts.push_back(S); 4596d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCBcLabelNo.push_back(++BcLabelCount); 4597d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 459854055232a5ddb9529726e934301b125cb720a273Steve Naroff 4599d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Pseudo-object operations and ivar references need special 4600d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // treatment because we're going to recursively rewrite them. 4601d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PseudoObjectExpr *PseudoOp = dyn_cast<PseudoObjectExpr>(S)) { 4602d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isa<BinaryOperator>(PseudoOp->getSyntacticForm())) { 4603d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewritePropertyOrImplicitSetter(PseudoOp); 4604d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 4605d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewritePropertyOrImplicitGetter(PseudoOp); 460654055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4607d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else if (ObjCIvarRefExpr *IvarRefExpr = dyn_cast<ObjCIvarRefExpr>(S)) { 4608d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteObjCIvarRefExpr(IvarRefExpr); 46096cb6eb4c792b504ad652d9230640656852e18ee9Fariborz Jahanian } 461054055232a5ddb9529726e934301b125cb720a273Steve Naroff 4611d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceRange OrigStmtRange = S->getSourceRange(); 4612d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4613d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Perform a bottom up rewrite of all children. 46147502c1d3ce8bb97bcc4f7bebef507040bd93b26fJohn McCall for (Stmt::child_range CI = S->children(); CI; ++CI) 46155e49b2f3e0bbc583076fe8af00dff06bcba06dafFariborz Jahanian if (*CI) { 4616d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmt *childStmt = (*CI); 4617d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmt *newStmt = RewriteFunctionBodyOrGlobalInitializer(childStmt); 4618d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (newStmt) { 4619d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian *CI = newStmt; 4620d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 46215e49b2f3e0bbc583076fe8af00dff06bcba06dafFariborz Jahanian } 46225e49b2f3e0bbc583076fe8af00dff06bcba06dafFariborz Jahanian 4623d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (BlockExpr *BE = dyn_cast<BlockExpr>(S)) { 4624f4b88a45902af1802a1cb42ba48b1c474474f228John McCall SmallVector<DeclRefExpr *, 8> InnerBlockDeclRefs; 4625d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian llvm::SmallPtrSet<const DeclContext *, 8> InnerContexts; 4626d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerContexts.insert(BE->getBlockDecl()); 4627d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ImportedLocalExternalDecls.clear(); 4628d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GetInnerBlockDeclRefExprs(BE->getBody(), 4629d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InnerBlockDeclRefs, InnerContexts); 4630d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Rewrite the block body in place. 4631d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmt *SaveCurrentBody = CurrentBody; 4632d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CurrentBody = BE->getBody(); 46336bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PropParentMap = nullptr; 4634d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // block literal on rhs of a property-dot-sytax assignment 4635d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // must be replaced by its synthesize ast so getRewrittenText 4636d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // works as expected. In this case, what actually ends up on RHS 4637d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // is the blockTranscribed which is the helper function for the 4638d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // block literal; as in: self.c = ^() {[ace ARR];}; 4639d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian bool saveDisableReplaceStmt = DisableReplaceStmt; 4640d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DisableReplaceStmt = false; 4641d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteFunctionBodyOrGlobalInitializer(BE->getBody()); 4642d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DisableReplaceStmt = saveDisableReplaceStmt; 4643d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CurrentBody = SaveCurrentBody; 46446bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PropParentMap = nullptr; 4645d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ImportedLocalExternalDecls.clear(); 4646d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Now we snarf the rewritten text and stash it away for later use. 4647d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string Str = Rewrite.getRewrittenText(BE->getSourceRange()); 4648d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewrittenBlockExprs[BE] = Str; 4649d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4650d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmt *blockTranscribed = SynthBlockInitExpr(BE, InnerBlockDeclRefs); 4651d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4652d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian //blockTranscribed->dump(); 4653d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceStmt(S, blockTranscribed); 4654d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return blockTranscribed; 46551f90622e9d24064164df1608ea125d0ed451ac68Fariborz Jahanian } 4656d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Handle specific things. 4657d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCEncodeExpr *AtEncode = dyn_cast<ObjCEncodeExpr>(S)) 4658d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteAtEncode(AtEncode); 46591f90622e9d24064164df1608ea125d0ed451ac68Fariborz Jahanian 4660d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCSelectorExpr *AtSelector = dyn_cast<ObjCSelectorExpr>(S)) 4661d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteAtSelector(AtSelector); 46621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4663d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCStringLiteral *AtString = dyn_cast<ObjCStringLiteral>(S)) 4664d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteObjCStringLiteral(AtString); 46651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4666d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCMessageExpr *MessExpr = dyn_cast<ObjCMessageExpr>(S)) { 4667d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian#if 0 4668d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Before we rewrite it, put the original message expression in a comment. 4669d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation startLoc = MessExpr->getLocStart(); 4670d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation endLoc = MessExpr->getLocEnd(); 467154055232a5ddb9529726e934301b125cb720a273Steve Naroff 4672d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *startBuf = SM->getCharacterData(startLoc); 4673d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *endBuf = SM->getCharacterData(endLoc); 46741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4675d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string messString; 4676d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian messString += "// "; 4677d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian messString.append(startBuf, endBuf-startBuf+1); 4678d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian messString += "\n"; 4679d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4680d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FIXME: Missing definition of 4681d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // InsertText(clang::SourceLocation, char const*, unsigned int). 4682d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // InsertText(startLoc, messString.c_str(), messString.size()); 4683d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Tried this, but it didn't work either... 4684d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // ReplaceText(startLoc, 0, messString.c_str(), messString.size()); 4685d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian#endif 4686d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteMessageExpr(MessExpr); 4687aa4d5ae6c450fdbe207cdb12373fc026376ece42Steve Naroff } 46881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4689d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCAtTryStmt *StmtTry = dyn_cast<ObjCAtTryStmt>(S)) 4690d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteObjCTryStmt(StmtTry); 46911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4692d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCAtSynchronizedStmt *StmtTry = dyn_cast<ObjCAtSynchronizedStmt>(S)) 4693d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteObjCSynchronizedStmt(StmtTry); 46941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4695d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCAtThrowStmt *StmtThrow = dyn_cast<ObjCAtThrowStmt>(S)) 4696d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteObjCThrowStmt(StmtThrow); 46971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4698d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCProtocolExpr *ProtocolExp = dyn_cast<ObjCProtocolExpr>(S)) 4699d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteObjCProtocolExpr(ProtocolExp); 47001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4701d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCForCollectionStmt *StmtForCollection = 4702d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian dyn_cast<ObjCForCollectionStmt>(S)) 4703d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteObjCForCollectionStmt(StmtForCollection, 4704d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OrigStmtRange.getEnd()); 4705d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (BreakStmt *StmtBreakStmt = 4706d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian dyn_cast<BreakStmt>(S)) 4707d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteBreakStmt(StmtBreakStmt); 4708d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ContinueStmt *StmtContinueStmt = 4709d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian dyn_cast<ContinueStmt>(S)) 4710d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteContinueStmt(StmtContinueStmt); 471154055232a5ddb9529726e934301b125cb720a273Steve Naroff 4712d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Need to check for protocol refs (id <P>, Foo <P> *) in variable decls 4713d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // and cast exprs. 4714d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (DeclStmt *DS = dyn_cast<DeclStmt>(S)) { 4715d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FIXME: What we're doing here is modifying the type-specifier that 4716d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // precedes the first Decl. In the future the DeclGroup should have 4717d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // a separate type-specifier that we can rewrite. 4718d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // NOTE: We need to avoid rewriting the DeclStmt if it is within 4719d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // the context of an ObjCForCollectionStmt. For example: 4720d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // NSArray *someArray; 4721d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // for (id <FooProtocol> index in someArray) ; 4722d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // This is because RewriteObjCForCollectionStmt() does textual rewriting 4723d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // and it depends on the original text locations/positions. 4724d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (Stmts.empty() || !IsDeclStmtInForeachHeader(DS)) 4725d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCQualifiedInterfaceTypes(*DS->decl_begin()); 47261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4727d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Blocks rewrite rules. 4728651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *SD : DS->decls()) { 4729d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ValueDecl *ND = dyn_cast<ValueDecl>(SD)) { 4730d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isTopLevelBlockPointerType(ND->getType())) 4731d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockPointerDecl(ND); 4732d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (ND->getType()->isFunctionPointerType()) 4733d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CheckFunctionPointerDecl(ND->getType(), ND); 4734d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (VarDecl *VD = dyn_cast<VarDecl>(SD)) { 4735d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (VD->hasAttr<BlocksAttr>()) { 4736d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian static unsigned uniqueByrefDeclCount = 0; 4737d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(!BlockByRefDeclNo.count(ND) && 4738d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "RewriteFunctionBodyOrGlobalInitializer: Duplicate byref decl"); 4739d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BlockByRefDeclNo[ND] = uniqueByrefDeclCount++; 4740d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteByRefVar(VD); 4741d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4742d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 4743d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteTypeOfDecl(VD); 4744d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4745d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4746d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(SD)) { 4747d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isTopLevelBlockPointerType(TD->getUnderlyingType())) 4748d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockPointerDecl(TD); 4749d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (TD->getUnderlyingType()->isFunctionPointerType()) 4750d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CheckFunctionPointerDecl(TD->getUnderlyingType(), TD); 4751d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 475254055232a5ddb9529726e934301b125cb720a273Steve Naroff } 475354055232a5ddb9529726e934301b125cb720a273Steve Naroff } 47541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4755d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CStyleCastExpr *CE = dyn_cast<CStyleCastExpr>(S)) 4756d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCQualifiedInterfaceTypes(CE); 47571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4758d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isa<SwitchStmt>(S) || isa<WhileStmt>(S) || 4759d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian isa<DoStmt>(S) || isa<ForStmt>(S)) { 4760d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(!Stmts.empty() && "Statement stack is empty"); 4761d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert ((isa<SwitchStmt>(Stmts.back()) || isa<WhileStmt>(Stmts.back()) || 4762d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian isa<DoStmt>(Stmts.back()) || isa<ForStmt>(Stmts.back())) 4763d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian && "Statement stack mismatch"); 4764d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmts.pop_back(); 4765d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4766d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Handle blocks rewriting. 4767d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(S)) { 4768d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ValueDecl *VD = DRE->getDecl(); 4769d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (VD->hasAttr<BlocksAttr>()) 4770d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteBlockDeclRefExpr(DRE); 4771d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (HasLocalVariableExternalStorage(VD)) 4772d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return RewriteLocalVariableExternalStorage(DRE); 4773d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4774d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4775d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CallExpr *CE = dyn_cast<CallExpr>(S)) { 4776d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CE->getCallee()->getType()->isBlockPointerType()) { 4777d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Stmt *BlockCall = SynthesizeBlockCall(CE, CE->getCallee()); 4778d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceStmt(S, BlockCall); 4779d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return BlockCall; 478054055232a5ddb9529726e934301b125cb720a273Steve Naroff } 478154055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4782d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CStyleCastExpr *CE = dyn_cast<CStyleCastExpr>(S)) { 4783d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteCastExpr(CE); 478454055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4785d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian#if 0 4786d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ImplicitCastExpr *ICE = dyn_cast<ImplicitCastExpr>(S)) { 4787d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CastExpr *Replacement = new (Context) CastExpr(ICE->getType(), 4788d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ICE->getSubExpr(), 4789d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation()); 4790d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Get the new text. 4791d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string SStr; 4792d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian llvm::raw_string_ostream Buf(SStr); 4793d1420c6fa788669e49f21e184927c7833881e399Richard Smith Replacement->printPretty(Buf); 4794d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const std::string &Str = Buf.str(); 4795d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4796d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian printf("CAST = %s\n", &Str[0]); 4797d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(ICE->getSubExpr()->getLocStart(), &Str[0], Str.size()); 4798d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian delete S; 4799d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return Replacement; 480054055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4801d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian#endif 4802d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Return this stmt unmodified. 4803d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return S; 480454055232a5ddb9529726e934301b125cb720a273Steve Naroff} 480554055232a5ddb9529726e934301b125cb720a273Steve Naroff 4806d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::RewriteRecordBody(RecordDecl *RD) { 4807651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *FD : RD->fields()) { 4808d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isTopLevelBlockPointerType(FD->getType())) 4809d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockPointerDecl(FD); 4810d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (FD->getType()->isObjCQualifiedIdType() || 4811d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FD->getType()->isObjCQualifiedInterfaceType()) 4812d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCQualifiedInterfaceTypes(FD); 4813e985d01390a828d9ea679c26c711d5509fd27709Fariborz Jahanian } 4814e985d01390a828d9ea679c26c711d5509fd27709Fariborz Jahanian} 4815e985d01390a828d9ea679c26c711d5509fd27709Fariborz Jahanian 4816d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// HandleDeclInMainFile - This is called for each top-level decl defined in the 4817d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// main file of the input. 4818d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::HandleDeclInMainFile(Decl *D) { 4819d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian switch (D->getKind()) { 4820d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case Decl::Function: { 4821d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FunctionDecl *FD = cast<FunctionDecl>(D); 4822d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (FD->isOverloadedOperator()) 4823d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 48241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4825d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Since function prototypes don't have ParmDecl's, we check the function 4826d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // prototype. This enables us to rewrite function declarations and 4827d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // definitions using the same code. 4828d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlocksInFunctionProtoType(FD->getType(), FD); 48291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 48309335df324951c022bc696e64b5fe9f66a8ad5222Argyrios Kyrtzidis if (!FD->isThisDeclarationADefinition()) 48319335df324951c022bc696e64b5fe9f66a8ad5222Argyrios Kyrtzidis break; 48329335df324951c022bc696e64b5fe9f66a8ad5222Argyrios Kyrtzidis 4833d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FIXME: If this should support Obj-C++, support CXXTryStmt 4834d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CompoundStmt *Body = dyn_cast_or_null<CompoundStmt>(FD->getBody())) { 4835d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CurFunctionDef = FD; 4836d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CurFunctionDeclToDeclareForBlock = FD; 4837d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CurrentBody = Body; 4838d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Body = 4839d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian cast_or_null<CompoundStmt>(RewriteFunctionBodyOrGlobalInitializer(Body)); 4840d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FD->setBody(Body); 48416bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurrentBody = nullptr; 4842d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PropParentMap) { 4843d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian delete PropParentMap; 48446bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PropParentMap = nullptr; 4845d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4846d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // This synthesizes and inserts the block "impl" struct, invoke function, 4847d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // and any copy/dispose helper functions. 4848d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertBlockLiteralsWithinFunction(FD); 48496bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurFunctionDef = nullptr; 48506bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurFunctionDeclToDeclareForBlock = nullptr; 4851d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4852d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 485354055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4854d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case Decl::ObjCMethod: { 4855d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCMethodDecl *MD = cast<ObjCMethodDecl>(D); 4856d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CompoundStmt *Body = MD->getCompoundBody()) { 4857d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CurMethodDef = MD; 4858d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CurrentBody = Body; 4859d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Body = 4860d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian cast_or_null<CompoundStmt>(RewriteFunctionBodyOrGlobalInitializer(Body)); 4861d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian MD->setBody(Body); 48626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurrentBody = nullptr; 4863d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PropParentMap) { 4864d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian delete PropParentMap; 48656bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PropParentMap = nullptr; 4866d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4867d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertBlockLiteralsWithinMethod(MD); 48686bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurMethodDef = nullptr; 4869d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4870d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 4871d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4872d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case Decl::ObjCImplementation: { 4873d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCImplementationDecl *CI = cast<ObjCImplementationDecl>(D); 4874d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ClassImplementation.push_back(CI); 4875d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 4876d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4877d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case Decl::ObjCCategoryImpl: { 4878d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCCategoryImplDecl *CI = cast<ObjCCategoryImplDecl>(D); 4879d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CategoryImplementation.push_back(CI); 4880d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 4881d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4882d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case Decl::Var: { 4883d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian VarDecl *VD = cast<VarDecl>(D); 4884d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCQualifiedInterfaceTypes(VD); 4885d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isTopLevelBlockPointerType(VD->getType())) 4886d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockPointerDecl(VD); 4887d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (VD->getType()->isFunctionPointerType()) { 4888d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CheckFunctionPointerDecl(VD->getType(), VD); 4889d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (VD->getInit()) { 4890d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CStyleCastExpr *CE = dyn_cast<CStyleCastExpr>(VD->getInit())) { 4891d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteCastExpr(CE); 4892d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4893d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4894d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else if (VD->getType()->isRecordType()) { 4895d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RecordDecl *RD = VD->getType()->getAs<RecordType>()->getDecl(); 4896d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (RD->isCompleteDefinition()) 4897d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteRecordBody(RD); 4898d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4899d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (VD->getInit()) { 4900d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian GlobalVarDecl = VD; 4901d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CurrentBody = VD->getInit(); 4902d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteFunctionBodyOrGlobalInitializer(VD->getInit()); 49036bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurrentBody = nullptr; 4904d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PropParentMap) { 4905d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian delete PropParentMap; 49066bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PropParentMap = nullptr; 4907d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4908d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SynthesizeBlockLiterals(VD->getTypeSpecStartLoc(), VD->getName()); 49096bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines GlobalVarDecl = nullptr; 49106bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 4911d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // This is needed for blocks. 4912d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CStyleCastExpr *CE = dyn_cast<CStyleCastExpr>(VD->getInit())) { 4913d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteCastExpr(CE); 4914d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4915d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4916d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 4917d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4918d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case Decl::TypeAlias: 4919d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case Decl::Typedef: { 4920d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (TypedefNameDecl *TD = dyn_cast<TypedefNameDecl>(D)) { 4921d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (isTopLevelBlockPointerType(TD->getUnderlyingType())) 4922d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteBlockPointerDecl(TD); 4923d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else if (TD->getUnderlyingType()->isFunctionPointerType()) 4924d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CheckFunctionPointerDecl(TD->getUnderlyingType(), TD); 4925d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4926d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 4927d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4928d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case Decl::CXXRecord: 4929d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian case Decl::Record: { 4930d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RecordDecl *RD = cast<RecordDecl>(D); 4931d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (RD->isCompleteDefinition()) 4932d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteRecordBody(RD); 4933d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 4934d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4935d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian default: 4936d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian break; 493754055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4938d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Nothing yet. 493954055232a5ddb9529726e934301b125cb720a273Steve Naroff} 494054055232a5ddb9529726e934301b125cb720a273Steve Naroff 4941d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjC::HandleTranslationUnit(ASTContext &C) { 4942d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (Diags.hasErrorOccurred()) 494354055232a5ddb9529726e934301b125cb720a273Steve Naroff return; 49441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4945d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteInclude(); 4946d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4947d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Here's a great place to add any extra declarations that may be needed. 4948d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Write out meta data for each @protocol(<expr>). 4949176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines for (ObjCProtocolDecl *ProtDecl : ProtocolExprDecls) 4950176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines RewriteObjCProtocolMetaData(ProtDecl, "", "", Preamble); 4951d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4952d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InsertText(SM->getLocForStartOfFile(MainFileID), Preamble, false); 4953d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ClassImplementation.size() || CategoryImplementation.size()) 4954d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteImplementations(); 4955d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4956d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Get the buffer corresponding to MainFileID. If we haven't changed it, then 4957d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // we are done. 4958d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (const RewriteBuffer *RewriteBuf = 4959d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Rewrite.getRewriteBufferFor(MainFileID)) { 4960d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian //printf("Changed:\n"); 4961d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian *OutFile << std::string(RewriteBuf->begin(), RewriteBuf->end()); 4962d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 4963d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian llvm::errs() << "No changes\n"; 4964e985d01390a828d9ea679c26c711d5509fd27709Fariborz Jahanian } 4965d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 4966d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ClassImplementation.size() || CategoryImplementation.size() || 4967d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ProtocolExprDecls.size()) { 4968d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Rewrite Objective-c meta data* 4969d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string ResultStr; 4970d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteMetaDataIntoBuffer(ResultStr); 4971d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Emit metadata. 4972d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian *OutFile << ResultStr; 497354055232a5ddb9529726e934301b125cb720a273Steve Naroff } 4974d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OutFile->flush(); 497554055232a5ddb9529726e934301b125cb720a273Steve Naroff} 497654055232a5ddb9529726e934301b125cb720a273Steve Naroff 4977d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjCFragileABI::Initialize(ASTContext &context) { 4978d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InitializeCommon(context); 4979ab10b2ebad09c283ccab0ef043118b3cf0166b56Fariborz Jahanian 4980d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // declaring objc_selector outside the parameter list removes a silly 4981d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // scope related warning... 4982d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (IsHeader) 4983d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble = "#pragma once\n"; 4984d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "struct objc_selector; struct objc_class;\n"; 4985d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "struct __rw_objc_super { struct objc_object *object; "; 4986d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "struct objc_object *superClass; "; 4987d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (LangOpts.MicrosoftExt) { 4988d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Add a constructor for creating temporary objects. 4989d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__rw_objc_super(struct objc_object *o, struct objc_object *s) " 4990d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ": "; 4991d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "object(o), superClass(s) {} "; 4992d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 4993d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "};\n"; 4994d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#ifndef _REWRITER_typedef_Protocol\n"; 4995d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "typedef struct objc_object Protocol;\n"; 4996d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define _REWRITER_typedef_Protocol\n"; 4997d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#endif\n"; 4998d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (LangOpts.MicrosoftExt) { 4999d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define __OBJC_RW_DLLIMPORT extern \"C\" __declspec(dllimport)\n"; 5000d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define __OBJC_RW_STATICIMPORT extern \"C\"\n"; 5001d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else 5002d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define __OBJC_RW_DLLIMPORT extern\n"; 5003d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT struct objc_object *objc_msgSend"; 5004d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "(struct objc_object *, struct objc_selector *, ...);\n"; 5005d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT struct objc_object *objc_msgSendSuper"; 5006d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "(struct objc_super *, struct objc_selector *, ...);\n"; 5007d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT struct objc_object* objc_msgSend_stret"; 5008d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "(struct objc_object *, struct objc_selector *, ...);\n"; 5009d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT struct objc_object* objc_msgSendSuper_stret"; 5010d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "(struct objc_super *, struct objc_selector *, ...);\n"; 5011d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT double objc_msgSend_fpret"; 5012d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "(struct objc_object *, struct objc_selector *, ...);\n"; 5013d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT struct objc_object *objc_getClass"; 5014d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "(const char *);\n"; 5015d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT struct objc_class *class_getSuperclass"; 5016d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "(struct objc_class *);\n"; 5017d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT struct objc_object *objc_getMetaClass"; 5018d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "(const char *);\n"; 5019d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT void objc_exception_throw(struct objc_object *);\n"; 5020d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT void objc_exception_try_enter(void *);\n"; 5021d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT void objc_exception_try_exit(void *);\n"; 5022d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT struct objc_object *objc_exception_extract(void *);\n"; 5023d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT int objc_exception_match"; 5024d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "(struct objc_class *, struct objc_object *);\n"; 5025d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // @synchronized hooks. 50262d234d73f687428c89f8a99af94f123012f05551Aaron Ballman Preamble += "__OBJC_RW_DLLIMPORT int objc_sync_enter(struct objc_object *);\n"; 50272d234d73f687428c89f8a99af94f123012f05551Aaron Ballman Preamble += "__OBJC_RW_DLLIMPORT int objc_sync_exit(struct objc_object *);\n"; 5028d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT Protocol *objc_getProtocol(const char *);\n"; 5029d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#ifndef __FASTENUMERATIONSTATE\n"; 5030d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "struct __objcFastEnumerationState {\n\t"; 5031d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "unsigned long state;\n\t"; 5032d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "void **itemsPtr;\n\t"; 5033d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "unsigned long *mutationsPtr;\n\t"; 5034d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "unsigned long extra[5];\n};\n"; 5035d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT void objc_enumerationMutation(struct objc_object *);\n"; 5036d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define __FASTENUMERATIONSTATE\n"; 5037d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#endif\n"; 5038d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#ifndef __NSCONSTANTSTRINGIMPL\n"; 5039d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "struct __NSConstantStringImpl {\n"; 5040d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += " int *isa;\n"; 5041d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += " int flags;\n"; 5042d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += " char *str;\n"; 5043d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += " long length;\n"; 5044d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "};\n"; 5045d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#ifdef CF_EXPORT_CONSTANT_STRING\n"; 5046d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "extern \"C\" __declspec(dllexport) int __CFConstantStringClassReference[];\n"; 5047d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#else\n"; 5048d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT int __CFConstantStringClassReference[];\n"; 5049d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#endif\n"; 5050d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define __NSCONSTANTSTRINGIMPL\n"; 5051d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#endif\n"; 5052d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Blocks preamble. 5053d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#ifndef BLOCK_IMPL\n"; 5054d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define BLOCK_IMPL\n"; 5055d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "struct __block_impl {\n"; 5056d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += " void *isa;\n"; 5057d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += " int Flags;\n"; 5058d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += " int Reserved;\n"; 5059d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += " void *FuncPtr;\n"; 5060d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "};\n"; 5061d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "// Runtime copy/destroy helper functions (from Block_private.h)\n"; 5062d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#ifdef __OBJC_EXPORT_BLOCKS\n"; 5063d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "extern \"C\" __declspec(dllexport) " 5064d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "void _Block_object_assign(void *, const void *, const int);\n"; 5065d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "extern \"C\" __declspec(dllexport) void _Block_object_dispose(const void *, const int);\n"; 5066d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "extern \"C\" __declspec(dllexport) void *_NSConcreteGlobalBlock[32];\n"; 5067d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "extern \"C\" __declspec(dllexport) void *_NSConcreteStackBlock[32];\n"; 5068d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#else\n"; 5069d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT void _Block_object_assign(void *, const void *, const int);\n"; 5070d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT void _Block_object_dispose(const void *, const int);\n"; 5071d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT void *_NSConcreteGlobalBlock[32];\n"; 5072d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "__OBJC_RW_DLLIMPORT void *_NSConcreteStackBlock[32];\n"; 5073d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#endif\n"; 5074d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#endif\n"; 5075d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (LangOpts.MicrosoftExt) { 5076d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#undef __OBJC_RW_DLLIMPORT\n"; 5077d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#undef __OBJC_RW_STATICIMPORT\n"; 5078d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#ifndef KEEP_ATTRIBUTES\n"; // We use this for clang tests. 5079d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define __attribute__(X)\n"; 5080d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#endif\n"; 5081d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define __weak\n"; 5082f381cc90d6cfa0966ddf791db57a6ed6c2462b5dFariborz Jahanian } 5083dfa4fa0fc5b78a91c74db84fce305771c2038229Fariborz Jahanian else { 5084d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define __block\n"; 5085d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "#define __weak\n"; 5086dfa4fa0fc5b78a91c74db84fce305771c2038229Fariborz Jahanian } 5087d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // NOTE! Windows uses LLP64 for 64bit mode. So, cast pointer to long long 5088d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // as this avoids warning in any 64bit/32bit compilation model. 5089d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Preamble += "\n#define __OFFSETOFIVAR__(TYPE, MEMBER) ((long long) &((TYPE *)0)->MEMBER)\n"; 5090d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 5091d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5092d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// RewriteIvarOffsetComputation - This rutine synthesizes computation of 5093d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// ivar offset. 5094d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjCFragileABI::RewriteIvarOffsetComputation(ObjCIvarDecl *ivar, 5095d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) { 5096d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ivar->isBitField()) { 5097d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FIXME: The hack below doesn't work for bitfields. For now, we simply 5098d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // place all bitfields at offset 0. 5099d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "0"; 5100d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 5101d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "__OFFSETOFIVAR__(struct "; 5102d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ivar->getContainingInterface()->getNameAsString(); 5103d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (LangOpts.MicrosoftExt) 5104d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "_IMPL"; 5105d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", "; 5106d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ivar->getNameAsString(); 5107d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ")"; 51082086d544d38f2611f2fba034e25833a47c81fb21Fariborz Jahanian } 5109d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 5110d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5111d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// RewriteObjCProtocolMetaData - Rewrite protocols meta-data. 5112d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjCFragileABI::RewriteObjCProtocolMetaData( 5113d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCProtocolDecl *PDecl, StringRef prefix, 5114d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef ClassName, std::string &Result) { 5115d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian static bool objc_protocol_methods = false; 51162086d544d38f2611f2fba034e25833a47c81fb21Fariborz Jahanian 5117d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output struct protocol_methods holder of method selector and type. 51185e2a1ff9f28d2eab256d2553e76a9c9d54693875Douglas Gregor if (!objc_protocol_methods && PDecl->hasDefinition()) { 5119d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct protocol_methods { 5120d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SEL _cmd; 5121d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian char *method_types; 5122d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5123d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5124d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstruct _protocol_methods {\n"; 5125d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct objc_selector *_cmd;\n"; 5126d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tchar *method_types;\n"; 5127d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n"; 5128d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5129d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian objc_protocol_methods = true; 5130d2eb1fdb1cfd37a6b93b46161826a23740d185e7Fariborz Jahanian } 5131d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Do not synthesize the protocol more than once. 51323fc73ee0c613715ebce78e30b4d050ea715a007dDouglas Gregor if (ObjCSynthesizedProtocols.count(PDecl->getCanonicalDecl())) 5133d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return; 513452b08f2c8a65c059cb2123fa0fd6317b829416deFariborz Jahanian 513561cc296de6c1f82fa84c0abb3ecd142a584838efDouglas Gregor if (ObjCProtocolDecl *Def = PDecl->getDefinition()) 513661cc296de6c1f82fa84c0abb3ecd142a584838efDouglas Gregor PDecl = Def; 513761cc296de6c1f82fa84c0abb3ecd142a584838efDouglas Gregor 5138d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PDecl->instmeth_begin() != PDecl->instmeth_end()) { 5139d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned NumMethods = std::distance(PDecl->instmeth_begin(), 5140d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian PDecl->instmeth_end()); 5141d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct _objc_protocol_method_list { 5142d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int protocol_method_count; 5143d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct protocol_methods protocols[]; 5144d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5145d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5146d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstatic struct {\n"; 5147d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tint protocol_method_count;\n"; 5148d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _protocol_methods protocol_methods["; 5149d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += utostr(NumMethods); 5150d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "];\n} _OBJC_PROTOCOL_INSTANCE_METHODS_"; 5151d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += PDecl->getNameAsString(); 5152d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " __attribute__ ((used, section (\"__OBJC, __cat_inst_meth\")))= " 5153d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "{\n\t" + utostr(NumMethods) + "\n"; 5154d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5155d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output instance methods declared in this protocol. 5156d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (ObjCProtocolDecl::instmeth_iterator 5157d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian I = PDecl->instmeth_begin(), E = PDecl->instmeth_end(); 5158d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian I != E; ++I) { 5159d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (I == PDecl->instmeth_begin()) 5160d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t ,{{(struct objc_selector *)\""; 5161d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5162d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t ,{(struct objc_selector *)\""; 5163d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += (*I)->getSelector().getAsString(); 5164d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string MethodTypeString; 5165d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Context->getObjCEncodingForMethodDecl((*I), MethodTypeString); 5166d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", \""; 5167d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += MethodTypeString; 5168d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\"}\n"; 5169d2eb1fdb1cfd37a6b93b46161826a23740d185e7Fariborz Jahanian } 5170d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t }\n};\n"; 517152b08f2c8a65c059cb2123fa0fd6317b829416deFariborz Jahanian } 5172d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5173d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output class methods declared in this protocol. 5174d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned NumMethods = std::distance(PDecl->classmeth_begin(), 5175d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian PDecl->classmeth_end()); 5176d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (NumMethods > 0) { 5177d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct _objc_protocol_method_list { 5178d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int protocol_method_count; 5179d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct protocol_methods protocols[]; 5180d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5181d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5182d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstatic struct {\n"; 5183d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tint protocol_method_count;\n"; 5184d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _protocol_methods protocol_methods["; 5185d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += utostr(NumMethods); 5186d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "];\n} _OBJC_PROTOCOL_CLASS_METHODS_"; 5187d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += PDecl->getNameAsString(); 5188d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " __attribute__ ((used, section (\"__OBJC, __cat_cls_meth\")))= " 5189d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "{\n\t"; 5190d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += utostr(NumMethods); 5191d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5192d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5193d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output instance methods declared in this protocol. 5194d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (ObjCProtocolDecl::classmeth_iterator 5195d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian I = PDecl->classmeth_begin(), E = PDecl->classmeth_end(); 5196d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian I != E; ++I) { 5197d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (I == PDecl->classmeth_begin()) 5198d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t ,{{(struct objc_selector *)\""; 5199d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5200d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t ,{(struct objc_selector *)\""; 5201d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += (*I)->getSelector().getAsString(); 5202d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string MethodTypeString; 5203d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Context->getObjCEncodingForMethodDecl((*I), MethodTypeString); 5204d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", \""; 5205d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += MethodTypeString; 5206d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\"}\n"; 5207d2eb1fdb1cfd37a6b93b46161826a23740d185e7Fariborz Jahanian } 5208d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t }\n};\n"; 5209d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5210d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5211d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output: 5212d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct _objc_protocol { 5213d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Objective-C 1.0 extensions 5214d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_protocol_extension *isa; 5215d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian char *protocol_name; 5216d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_protocol **protocol_list; 5217d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_protocol_method_list *instance_methods; 5218d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_protocol_method_list *class_methods; 5219d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian }; 5220d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5221d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian static bool objc_protocol = false; 5222d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!objc_protocol) { 5223d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstruct _objc_protocol {\n"; 5224d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_protocol_extension *isa;\n"; 5225d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tchar *protocol_name;\n"; 5226d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_protocol **protocol_list;\n"; 5227d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_protocol_method_list *instance_methods;\n"; 5228d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_protocol_method_list *class_methods;\n"; 5229d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n"; 5230c5143c538783a2834cfdc3d29db0ff76e857818fSteve Naroff 5231d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian objc_protocol = true; 523252b08f2c8a65c059cb2123fa0fd6317b829416deFariborz Jahanian } 5233d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5234d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstatic struct _objc_protocol _OBJC_PROTOCOL_"; 5235d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += PDecl->getNameAsString(); 5236d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " __attribute__ ((used, section (\"__OBJC, __protocol\")))= " 5237d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "{\n\t0, \""; 5238d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += PDecl->getNameAsString(); 5239d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", 0, "; 5240d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PDecl->instmeth_begin() != PDecl->instmeth_end()) { 5241d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "(struct _objc_protocol_method_list *)&_OBJC_PROTOCOL_INSTANCE_METHODS_"; 5242d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += PDecl->getNameAsString(); 5243d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", "; 524454055232a5ddb9529726e934301b125cb720a273Steve Naroff } 5245d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5246d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "0, "; 5247d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PDecl->classmeth_begin() != PDecl->classmeth_end()) { 5248d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "(struct _objc_protocol_method_list *)&_OBJC_PROTOCOL_CLASS_METHODS_"; 5249d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += PDecl->getNameAsString(); 5250d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5251d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5252d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5253d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "0\n"; 5254d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n"; 5255d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5256d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Mark this protocol as having been generated. 5257176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (!ObjCSynthesizedProtocols.insert(PDecl->getCanonicalDecl()).second) 5258d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian llvm_unreachable("protocol already synthesized"); 5259d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 526054055232a5ddb9529726e934301b125cb720a273Steve Naroff} 526154055232a5ddb9529726e934301b125cb720a273Steve Naroff 5262d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjCFragileABI::RewriteObjCProtocolListMetaData( 5263d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const ObjCList<ObjCProtocolDecl> &Protocols, 5264d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef prefix, StringRef ClassName, 5265d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) { 5266d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (Protocols.empty()) return; 5267d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5268d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (unsigned i = 0; i != Protocols.size(); i++) 5269d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCProtocolMetaData(Protocols[i], prefix, ClassName, Result); 5270d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5271d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Output the top lovel protocol meta-data for the class. 5272d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct _objc_protocol_list { 5273d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_protocol_list *next; 5274d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int protocol_count; 5275d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_protocol *class_protocols[]; 5276d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5277d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5278d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstatic struct {\n"; 5279d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_protocol_list *next;\n"; 5280d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tint protocol_count;\n"; 5281d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_protocol *class_protocols["; 5282d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += utostr(Protocols.size()); 5283d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "];\n} _OBJC_"; 5284d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += prefix; 5285d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "_PROTOCOLS_"; 5286d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ClassName; 5287d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " __attribute__ ((used, section (\"__OBJC, __cat_cls_meth\")))= " 5288d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "{\n\t0, "; 5289d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += utostr(Protocols.size()); 5290d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5291d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5292d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t,{&_OBJC_PROTOCOL_"; 5293d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += Protocols[0]->getNameAsString(); 5294d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " \n"; 5295d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5296d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (unsigned i = 1; i != Protocols.size(); i++) { 5297d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t ,&_OBJC_PROTOCOL_"; 5298d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += Protocols[i]->getNameAsString(); 5299d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5300d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5301d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t }\n};\n"; 5302fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff} 5303fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff 5304d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjCFragileABI::RewriteObjCClassMetaData(ObjCImplementationDecl *IDecl, 5305d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) { 5306d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCInterfaceDecl *CDecl = IDecl->getClassInterface(); 53075e49b2f3e0bbc583076fe8af00dff06bcba06dafFariborz Jahanian 5308d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Explicitly declared @interface's are already synthesized. 5309d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CDecl->isImplicitInterfaceDecl()) { 53107723fec9b45b7258c0eddf4cbfd0d335348f5edcDouglas Gregor // FIXME: Implementation of a class with no @interface (legacy) does not 5311d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // produce correct synthesis as yet. 5312d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCInternalStruct(CDecl, Result); 53135e49b2f3e0bbc583076fe8af00dff06bcba06dafFariborz Jahanian } 531401aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff 5315d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Build _objc_ivar_list metadata for classes ivars if needed 5316d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned NumIvars = !IDecl->ivar_empty() 5317d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ? IDecl->ivar_size() 5318d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian : (CDecl ? CDecl->ivar_size() : 0); 5319d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (NumIvars > 0) { 5320d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian static bool objc_ivar = false; 5321d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!objc_ivar) { 5322d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct _objc_ivar { 5323d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian char *ivar_name; 5324d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian char *ivar_type; 5325d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int ivar_offset; 5326d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian }; 5327d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5328d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstruct _objc_ivar {\n"; 5329d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tchar *ivar_name;\n"; 5330d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tchar *ivar_type;\n"; 5331d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tint ivar_offset;\n"; 5332d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n"; 53332663f527c2717295fbaed4715945b879ad68f4cfFariborz Jahanian 5334d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian objc_ivar = true; 5335d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5336d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5337d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct { 5338d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int ivar_count; 5339d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_ivar ivar_list[nIvars]; 5340d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian }; 5341d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5342d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstatic struct {\n"; 5343d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tint ivar_count;\n"; 5344d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_ivar ivar_list["; 5345d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += utostr(NumIvars); 5346d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "];\n} _OBJC_INSTANCE_VARIABLES_"; 5347d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += IDecl->getNameAsString(); 5348d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " __attribute__ ((used, section (\"__OBJC, __instance_vars\")))= " 5349d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "{\n\t"; 5350d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += utostr(NumIvars); 5351d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5352d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5353d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCInterfaceDecl::ivar_iterator IVI, IVE; 5354d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SmallVector<ObjCIvarDecl *, 8> IVars; 5355d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!IDecl->ivar_empty()) { 5356651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (auto *IV : IDecl->ivars()) 5357651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines IVars.push_back(IV); 5358d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IVI = IDecl->ivar_begin(); 5359d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IVE = IDecl->ivar_end(); 5360d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { 5361d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IVI = CDecl->ivar_begin(); 5362d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IVE = CDecl->ivar_end(); 5363fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5364d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t,{{\""; 5365262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie Result += IVI->getNameAsString(); 5366d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", \""; 5367d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string TmpString, StrEncoding; 5368581deb3da481053c4993c7600f97acf7768caac5David Blaikie Context->getObjCEncodingForType(IVI->getType(), TmpString, *IVI); 5369d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QuoteDoublequotes(TmpString, StrEncoding); 5370d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += StrEncoding; 5371d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", "; 5372581deb3da481053c4993c7600f97acf7768caac5David Blaikie RewriteIvarOffsetComputation(*IVI, Result); 5373d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "}\n"; 5374d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (++IVI; IVI != IVE; ++IVI) { 5375d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t ,{\""; 5376262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie Result += IVI->getNameAsString(); 5377d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", \""; 5378d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string TmpString, StrEncoding; 5379581deb3da481053c4993c7600f97acf7768caac5David Blaikie Context->getObjCEncodingForType(IVI->getType(), TmpString, *IVI); 5380d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QuoteDoublequotes(TmpString, StrEncoding); 5381d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += StrEncoding; 5382d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", "; 5383581deb3da481053c4993c7600f97acf7768caac5David Blaikie RewriteIvarOffsetComputation(*IVI, Result); 5384d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "}\n"; 5385d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5386d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5387d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t }\n};\n"; 538801aec11c8cace2b9b22531627970d8bbdbac0c1cSteve Naroff } 5389d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5390d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Build _objc_method_list for class's instance methods if needed 5391651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SmallVector<ObjCMethodDecl *, 32> InstanceMethods(IDecl->instance_methods()); 5392d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5393d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // If any of our property implementations have associated getters or 5394d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // setters, produce metadata for them as well. 5395651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto *Prop : IDecl->property_impls()) { 5396262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie if (Prop->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic) 5397d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian continue; 5398262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie if (!Prop->getPropertyIvarDecl()) 5399d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian continue; 5400262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie ObjCPropertyDecl *PD = Prop->getPropertyDecl(); 5401d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!PD) 5402d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian continue; 5403d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCMethodDecl *Getter = PD->getGetterMethodDecl()) 5404d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!Getter->isDefined()) 5405d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InstanceMethods.push_back(Getter); 5406d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PD->isReadOnly()) 5407d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian continue; 5408d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCMethodDecl *Setter = PD->getSetterMethodDecl()) 5409d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!Setter->isDefined()) 5410d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InstanceMethods.push_back(Setter); 5411d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5412d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCMethodsMetaData(InstanceMethods.begin(), InstanceMethods.end(), 5413d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian true, "", IDecl->getName(), Result); 5414d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5415d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Build _objc_method_list for class's class methods if needed 5416d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCMethodsMetaData(IDecl->classmeth_begin(), IDecl->classmeth_end(), 5417d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian false, "", IDecl->getName(), Result); 5418d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5419d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Protocols referenced in class declaration? 5420d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCProtocolListMetaData(CDecl->getReferencedProtocols(), 5421d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "CLASS", CDecl->getName(), Result); 5422d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5423d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Declaration of class/meta-class metadata 5424d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct _objc_class { 5425d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_class *isa; // or const char *root_class_name when metadata 5426d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *super_class_name; 5427d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian char *name; 5428d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian long version; 5429d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian long info; 5430d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian long instance_size; 5431d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_ivar_list *ivars; 5432d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_method_list *methods; 5433d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct objc_cache *cache; 5434d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct objc_protocol_list *protocols; 5435d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *ivar_layout; 5436d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_class_ext *ext; 5437d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian }; 5438d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5439d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian static bool objc_class = false; 5440d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!objc_class) { 5441d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstruct _objc_class {\n"; 5442d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_class *isa;\n"; 5443d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tconst char *super_class_name;\n"; 5444d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tchar *name;\n"; 5445d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tlong version;\n"; 5446d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tlong info;\n"; 5447d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tlong instance_size;\n"; 5448d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_ivar_list *ivars;\n"; 5449d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_method_list *methods;\n"; 5450d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct objc_cache *cache;\n"; 5451d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_protocol_list *protocols;\n"; 5452d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tconst char *ivar_layout;\n"; 5453d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_class_ext *ext;\n"; 5454d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n"; 5455d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian objc_class = true; 5456d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5457d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5458d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Meta-class metadata generation. 54596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCInterfaceDecl *RootClass = nullptr; 5460d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCInterfaceDecl *SuperClass = CDecl->getSuperClass(); 5461d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian while (SuperClass) { 5462d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RootClass = SuperClass; 5463d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SuperClass = SuperClass->getSuperClass(); 5464d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5465d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SuperClass = CDecl->getSuperClass(); 5466d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5467d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstatic struct _objc_class _OBJC_METACLASS_"; 5468d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5469d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " __attribute__ ((used, section (\"__OBJC, __meta_class\")))= " 5470d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "{\n\t(struct _objc_class *)\""; 5471d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += (RootClass ? RootClass->getNameAsString() : CDecl->getNameAsString()); 5472d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\""; 5473d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5474d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (SuperClass) { 5475d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", \""; 5476d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += SuperClass->getNameAsString(); 5477d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", \""; 5478d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5479d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\""; 5480d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5481d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else { 5482d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", 0, \""; 5483d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5484d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\""; 5485d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5486d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Set 'ivars' field for root class to 0. ObjC1 runtime does not use it. 5487d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 'info' field is initialized to CLS_META(2) for metaclass 5488d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", 0,2, sizeof(struct _objc_class), 0"; 5489d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (IDecl->classmeth_begin() != IDecl->classmeth_end()) { 5490d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n\t, (struct _objc_method_list *)&_OBJC_CLASS_METHODS_"; 5491d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += IDecl->getNameAsString(); 5492d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5493d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5494d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5495d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", 0\n"; 5496d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CDecl->protocol_begin() != CDecl->protocol_end()) { 5497d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t,0, (struct _objc_protocol_list *)&_OBJC_CLASS_PROTOCOLS_"; 5498d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5499d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ",0,0\n"; 5500d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5501d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5502d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t,0,0,0,0\n"; 5503d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n"; 5504d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5505d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // class metadata generation. 5506d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstatic struct _objc_class _OBJC_CLASS_"; 5507d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5508d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " __attribute__ ((used, section (\"__OBJC, __class\")))= " 5509d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "{\n\t&_OBJC_METACLASS_"; 5510d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5511d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (SuperClass) { 5512d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", \""; 5513d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += SuperClass->getNameAsString(); 5514d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", \""; 5515d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5516d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\""; 5517d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5518d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else { 5519d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", 0, \""; 5520d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5521d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\""; 5522fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5523d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // 'info' field is initialized to CLS_CLASS(1) for class 5524d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", 0,1"; 5525d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!ObjCSynthesizedStructs.count(CDecl)) 5526d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ",0"; 5527d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else { 5528d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // class has size. Must synthesize its size. 5529d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ",sizeof(struct "; 5530d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5531d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (LangOpts.MicrosoftExt) 5532d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "_IMPL"; 5533d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ")"; 5534fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5535d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (NumIvars > 0) { 5536d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", (struct _objc_ivar_list *)&_OBJC_INSTANCE_VARIABLES_"; 5537d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5538d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n\t"; 55394b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 5540d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5541d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ",0"; 5542d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (IDecl->instmeth_begin() != IDecl->instmeth_end()) { 5543d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", (struct _objc_method_list *)&_OBJC_INSTANCE_METHODS_"; 5544d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5545d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", 0\n\t"; 5546fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5547d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5548d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ",0,0"; 5549d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CDecl->protocol_begin() != CDecl->protocol_end()) { 5550d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", (struct _objc_protocol_list*)&_OBJC_CLASS_PROTOCOLS_"; 5551d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CDecl->getNameAsString(); 5552d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ", 0,0\n"; 5553fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5554d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5555d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ",0,0,0\n"; 5556d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n"; 5557d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 55581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5559d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjCFragileABI::RewriteMetaDataIntoBuffer(std::string &Result) { 5560d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int ClsDefCount = ClassImplementation.size(); 5561d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int CatDefCount = CategoryImplementation.size(); 5562d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5563d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // For each implemented class, write out all its meta data. 5564d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (int i = 0; i < ClsDefCount; i++) 5565d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCClassMetaData(ClassImplementation[i], Result); 5566d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5567d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // For each implemented category, write out all its meta data. 5568d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (int i = 0; i < CatDefCount; i++) 5569d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCCategoryImplDecl(CategoryImplementation[i], Result); 5570d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5571d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Write objc_symtab metadata 5572d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* 5573d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_symtab 5574d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian { 5575d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian long sel_ref_cnt; 5576d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SEL *refs; 5577d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian short cls_def_cnt; 5578d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian short cat_def_cnt; 5579d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian void *defs[cls_def_cnt + cat_def_cnt]; 5580d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian }; 5581d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5582d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5583d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstruct _objc_symtab {\n"; 5584d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tlong sel_ref_cnt;\n"; 5585d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tSEL *refs;\n"; 5586d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tshort cls_def_cnt;\n"; 5587d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tshort cat_def_cnt;\n"; 5588d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tvoid *defs[" + utostr(ClsDefCount + CatDefCount)+ "];\n"; 5589d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n\n"; 5590d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5591d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "static struct _objc_symtab " 5592d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "_OBJC_SYMBOLS __attribute__((used, section (\"__OBJC, __symbols\")))= {\n"; 5593d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t0, 0, " + utostr(ClsDefCount) 5594d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian + ", " + utostr(CatDefCount) + "\n"; 5595d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (int i = 0; i < ClsDefCount; i++) { 5596d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t,&_OBJC_CLASS_"; 5597d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ClassImplementation[i]->getNameAsString(); 5598d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5599d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5600d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5601d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (int i = 0; i < CatDefCount; i++) { 5602d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t,&_OBJC_CATEGORY_"; 5603d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CategoryImplementation[i]->getClassInterface()->getNameAsString(); 5604d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "_"; 5605d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += CategoryImplementation[i]->getNameAsString(); 5606d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5607d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5608d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5609d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n\n"; 5610d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5611d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Write objc_module metadata 5612d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5613d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* 5614d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_module { 5615d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian long version; 5616d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian long size; 5617d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const char *name; 5618d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_symtab *symtab; 5619d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5620d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5621d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5622d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstruct _objc_module {\n"; 5623d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tlong version;\n"; 5624d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tlong size;\n"; 5625d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tconst char *name;\n"; 5626d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_symtab *symtab;\n"; 5627d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n\n"; 5628d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "static struct _objc_module " 5629d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "_OBJC_MODULES __attribute__ ((used, section (\"__OBJC, __module_info\")))= {\n"; 5630d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t" + utostr(OBJC_ABI_VERSION) + 5631d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ", sizeof(struct _objc_module), \"\", &_OBJC_SYMBOLS\n"; 5632d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n\n"; 5633d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5634d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (LangOpts.MicrosoftExt) { 5635d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ProtocolExprDecls.size()) { 5636d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "#pragma section(\".objc_protocol$B\",long,read,write)\n"; 5637d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "#pragma data_seg(push, \".objc_protocol$B\")\n"; 5638176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines for (ObjCProtocolDecl *ProtDecl : ProtocolExprDecls) { 5639d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "static struct _objc_protocol *_POINTER_OBJC_PROTOCOL_"; 5640176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Result += ProtDecl->getNameAsString(); 5641d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " = &_OBJC_PROTOCOL_"; 5642176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Result += ProtDecl->getNameAsString(); 5643d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ";\n"; 5644fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5645d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "#pragma data_seg(pop)\n\n"; 5646fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5647d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "#pragma section(\".objc_module_info$B\",long,read,write)\n"; 5648d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "#pragma data_seg(push, \".objc_module_info$B\")\n"; 5649d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "static struct _objc_module *_POINTER_OBJC_MODULES = "; 5650d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "&_OBJC_MODULES;\n"; 5651d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "#pragma data_seg(pop)\n\n"; 5652fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5653d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 56541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5655d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// RewriteObjCCategoryImplDecl - Rewrite metadata for each category 5656d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// implementation. 5657d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjCFragileABI::RewriteObjCCategoryImplDecl(ObjCCategoryImplDecl *IDecl, 5658d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) { 5659d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCInterfaceDecl *ClassDecl = IDecl->getClassInterface(); 5660d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Find category declaration for this implementation. 5661d329724745b49f894b768d47275b7c2713106e89Douglas Gregor ObjCCategoryDecl *CDecl 5662d329724745b49f894b768d47275b7c2713106e89Douglas Gregor = ClassDecl->FindCategoryDeclaration(IDecl->getIdentifier()); 5663d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5664d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string FullCategoryName = ClassDecl->getNameAsString(); 5665d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FullCategoryName += '_'; 5666d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FullCategoryName += IDecl->getNameAsString(); 5667d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5668d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Build _objc_method_list for class's instance methods if needed 5669651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SmallVector<ObjCMethodDecl *, 32> InstanceMethods(IDecl->instance_methods()); 5670d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5671d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // If any of our property implementations have associated getters or 5672d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // setters, produce metadata for them as well. 5673651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines for (const auto *Prop : IDecl->property_impls()) { 5674262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie if (Prop->getPropertyImplementation() == ObjCPropertyImplDecl::Dynamic) 5675d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian continue; 5676262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie if (!Prop->getPropertyIvarDecl()) 5677d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian continue; 5678262bc18e32500558af7cb0afa205b34bd37bafedDavid Blaikie ObjCPropertyDecl *PD = Prop->getPropertyDecl(); 5679d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!PD) 5680d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian continue; 5681d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCMethodDecl *Getter = PD->getGetterMethodDecl()) 5682d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InstanceMethods.push_back(Getter); 5683d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (PD->isReadOnly()) 5684d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian continue; 5685d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (ObjCMethodDecl *Setter = PD->getSetterMethodDecl()) 5686d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian InstanceMethods.push_back(Setter); 5687fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5688d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCMethodsMetaData(InstanceMethods.begin(), InstanceMethods.end(), 5689d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian true, "CATEGORY_", FullCategoryName.c_str(), 5690d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result); 5691d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5692d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Build _objc_method_list for class's class methods if needed 5693d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCMethodsMetaData(IDecl->classmeth_begin(), IDecl->classmeth_end(), 5694d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian false, "CATEGORY_", FullCategoryName.c_str(), 5695d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result); 5696d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5697d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Protocols referenced in class declaration? 5698d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Null CDecl is case of a category implementation with no category interface 5699d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CDecl) 5700d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RewriteObjCProtocolListMetaData(CDecl->getReferencedProtocols(), "CATEGORY", 5701d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian FullCategoryName, Result); 5702d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct _objc_category { 5703d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian char *category_name; 5704d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian char *class_name; 5705d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_method_list *instance_methods; 5706d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_method_list *class_methods; 5707d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_protocol_list *protocols; 5708d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Objective-C 1.0 extensions 5709d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian uint32_t size; // sizeof (struct _objc_category) 5710d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_property_list *instance_properties; // category's own 5711d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // @property decl. 5712d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian }; 5713d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5714d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5715d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian static bool objc_category = false; 5716d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!objc_category) { 5717d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstruct _objc_category {\n"; 5718d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tchar *category_name;\n"; 5719d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tchar *class_name;\n"; 5720d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_method_list *instance_methods;\n"; 5721d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_method_list *class_methods;\n"; 5722d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_protocol_list *protocols;\n"; 5723d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tunsigned int size;\n"; 5724d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_property_list *instance_properties;\n"; 5725d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n"; 5726d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian objc_category = true; 5727f381cc90d6cfa0966ddf791db57a6ed6c2462b5dFariborz Jahanian } 5728d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstatic struct _objc_category _OBJC_CATEGORY_"; 5729d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += FullCategoryName; 5730d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " __attribute__ ((used, section (\"__OBJC, __category\")))= {\n\t\""; 5731d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += IDecl->getNameAsString(); 5732d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\"\n\t, \""; 5733d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ClassDecl->getNameAsString(); 5734d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\"\n"; 5735f381cc90d6cfa0966ddf791db57a6ed6c2462b5dFariborz Jahanian 5736d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (IDecl->instmeth_begin() != IDecl->instmeth_end()) { 5737d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t, (struct _objc_method_list *)" 5738d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "&_OBJC_CATEGORY_INSTANCE_METHODS_"; 5739d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += FullCategoryName; 5740d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5741fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5742d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5743d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t, 0\n"; 5744d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (IDecl->classmeth_begin() != IDecl->classmeth_end()) { 5745d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t, (struct _objc_method_list *)" 5746d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian "&_OBJC_CATEGORY_CLASS_METHODS_"; 5747d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += FullCategoryName; 5748d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5749fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5750d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5751d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t, 0\n"; 5752d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5753d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CDecl && CDecl->protocol_begin() != CDecl->protocol_end()) { 5754d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t, (struct _objc_protocol_list *)&_OBJC_CATEGORY_PROTOCOLS_"; 5755d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += FullCategoryName; 5756d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\n"; 5757d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5758d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian else 5759d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t, 0\n"; 5760d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t, sizeof(struct _objc_category), 0\n};\n"; 5761d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian} 5762fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff 5763d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian// RewriteObjCMethodsMetaData - Rewrite methods metadata for instance or 5764d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian/// class methods. 5765d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahaniantemplate<typename MethodIterator> 5766d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanianvoid RewriteObjCFragileABI::RewriteObjCMethodsMetaData(MethodIterator MethodBegin, 5767d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian MethodIterator MethodEnd, 5768d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian bool IsInstanceMethod, 5769d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef prefix, 5770d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian StringRef ClassName, 5771d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string &Result) { 5772d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (MethodBegin == MethodEnd) return; 5773d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5774d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (!objc_impl_method) { 5775d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct _objc_method { 5776d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SEL _cmd; 5777d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian char *method_types; 5778d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian void *_imp; 5779d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5780d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5781d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstruct _objc_method {\n"; 5782d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tSEL _cmd;\n"; 5783d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tchar *method_types;\n"; 5784d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tvoid *_imp;\n"; 5785d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "};\n"; 5786d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5787d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian objc_impl_method = true; 5788d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5789d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5790d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Build _objc_method_list for class's methods if needed 5791d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5792d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian /* struct { 5793d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_method_list *next_method; 5794d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian int method_count; 5795d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian struct _objc_method method_list[]; 5796d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } 5797d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian */ 5798d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian unsigned NumMethods = std::distance(MethodBegin, MethodEnd); 5799d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\nstatic struct {\n"; 5800d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_method_list *next_method;\n"; 5801d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tint method_count;\n"; 5802d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\tstruct _objc_method method_list["; 5803d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += utostr(NumMethods); 5804d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "];\n} _OBJC_"; 5805d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += prefix; 5806d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += IsInstanceMethod ? "INSTANCE" : "CLASS"; 5807d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "_METHODS_"; 5808d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += ClassName; 5809d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += " __attribute__ ((used, section (\"__OBJC, __"; 5810d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += IsInstanceMethod ? "inst" : "cls"; 5811d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "_meth\")))= "; 5812d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "{\n\t0, " + utostr(NumMethods) + "\n"; 5813d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5814d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t,{{(SEL)\""; 5815d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += (*MethodBegin)->getSelector().getAsString().c_str(); 5816d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string MethodTypeString; 5817d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Context->getObjCEncodingForMethodDecl(*MethodBegin, MethodTypeString); 5818d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", \""; 5819d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += MethodTypeString; 5820d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", (void *)"; 5821d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += MethodInternalNames[*MethodBegin]; 5822d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "}\n"; 5823d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian for (++MethodBegin; MethodBegin != MethodEnd; ++MethodBegin) { 5824d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t ,{(SEL)\""; 5825d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += (*MethodBegin)->getSelector().getAsString().c_str(); 5826d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string MethodTypeString; 5827d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Context->getObjCEncodingForMethodDecl(*MethodBegin, MethodTypeString); 5828d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", \""; 5829d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += MethodTypeString; 5830d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\", (void *)"; 5831d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += MethodInternalNames[*MethodBegin]; 5832d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "}\n"; 5833fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5834d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Result += "\t }\n};\n"; 5835fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff} 5836fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff 5837d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz JahanianStmt *RewriteObjCFragileABI::RewriteObjCIvarRefExpr(ObjCIvarRefExpr *IV) { 5838d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceRange OldRange = IV->getSourceRange(); 5839d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *BaseExpr = IV->getBase(); 5840d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5841d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Rewrite the base, but without actually doing replaces. 5842d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian { 5843d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian DisableReplaceStmtScope S(*this); 5844d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian BaseExpr = cast<Expr>(RewriteFunctionBodyOrGlobalInitializer(BaseExpr)); 5845d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IV->setBase(BaseExpr); 58463d7e7865bd0863fcf36aee14d8911b785dde57ddSteve Naroff } 5847d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5848d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ObjCIvarDecl *D = IV->getDecl(); 5849d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5850d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian Expr *Replacement = IV; 5851d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (CurMethodDef) { 5852d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (BaseExpr->getType()->isObjCObjectPointerType()) { 5853d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const ObjCInterfaceType *iFaceDecl = 5854d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian dyn_cast<ObjCInterfaceType>(BaseExpr->getType()->getPointeeType()); 5855d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(iFaceDecl && "RewriteObjCIvarRefExpr - iFaceDecl is null"); 5856d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // lookup which class implements the instance variable. 58576bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCInterfaceDecl *clsDeclared = nullptr; 5858d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian iFaceDecl->getDecl()->lookupInstanceVariable(D->getIdentifier(), 5859d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian clsDeclared); 5860d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(clsDeclared && "RewriteObjCIvarRefExpr(): Can't find class"); 5861d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5862d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Synthesize an explicit cast to gain access to the ivar. 5863d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string RecName = clsDeclared->getIdentifier()->getName(); 5864d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RecName += "_IMPL"; 5865d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IdentifierInfo *II = &Context->Idents.get(RecName); 5866d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RecordDecl *RD = RecordDecl::Create(*Context, TTK_Struct, TUDecl, 5867d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation(), SourceLocation(), 5868d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian II); 5869d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(RD && "RewriteObjCIvarRefExpr(): Can't find RecordDecl"); 5870d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType castT = Context->getPointerType(Context->getTagDeclType(RD)); 5871d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CastExpr *castExpr = NoTypeInfoCStyleCastExpr(Context, castT, 5872d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CK_BitCast, 5873d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IV->getBase()); 5874d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Don't forget the parens to enforce the proper binding. 5875d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ParenExpr *PE = new (Context) ParenExpr(OldRange.getBegin(), 5876d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian OldRange.getEnd(), 58773ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar castExpr); 58783ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar if (IV->isFreeIvar() && 58793ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar declaresSameEntity(CurMethodDef->getClassInterface(), iFaceDecl->getDecl())) { 58803ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar MemberExpr *ME = new (Context) 58813ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar MemberExpr(PE, true, SourceLocation(), D, IV->getLocation(), 58823ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar D->getType(), VK_LValue, OK_Ordinary); 58833ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar Replacement = ME; 58843ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar } else { 58853ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar IV->setBase(PE); 58868e2f57ad06d73a6c2cacf0167a3b9e244439a9f9Steve Naroff } 588702f8396a440b7b7a0354159e5371d29934aedd9cFariborz Jahanian } 5888d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian } else { // we are outside a method. 5889d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(!IV->isFreeIvar() && "Cannot have a free standing ivar outside a method"); 5890d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5891d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Explicit ivar refs need to have a cast inserted. 5892d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // FIXME: consider sharing some of this code with the code above. 5893d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian if (BaseExpr->getType()->isObjCObjectPointerType()) { 5894d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian const ObjCInterfaceType *iFaceDecl = 5895d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian dyn_cast<ObjCInterfaceType>(BaseExpr->getType()->getPointeeType()); 5896d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // lookup which class implements the instance variable. 58976bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjCInterfaceDecl *clsDeclared = nullptr; 5898d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian iFaceDecl->getDecl()->lookupInstanceVariable(D->getIdentifier(), 5899d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian clsDeclared); 5900d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(clsDeclared && "RewriteObjCIvarRefExpr(): Can't find class"); 5901d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5902d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Synthesize an explicit cast to gain access to the ivar. 5903d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian std::string RecName = clsDeclared->getIdentifier()->getName(); 5904d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RecName += "_IMPL"; 5905d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IdentifierInfo *II = &Context->Idents.get(RecName); 5906d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian RecordDecl *RD = RecordDecl::Create(*Context, TTK_Struct, TUDecl, 5907d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian SourceLocation(), SourceLocation(), 5908d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian II); 5909d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian assert(RD && "RewriteObjCIvarRefExpr(): Can't find RecordDecl"); 5910d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian QualType castT = Context->getPointerType(Context->getTagDeclType(RD)); 5911d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CastExpr *castExpr = NoTypeInfoCStyleCastExpr(Context, castT, 5912d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian CK_BitCast, 5913d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IV->getBase()); 5914d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Don't forget the parens to enforce the proper binding. 5915d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ParenExpr *PE = new (Context) ParenExpr(IV->getBase()->getLocStart(), 5916d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IV->getBase()->getLocEnd(), castExpr); 5917d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Cannot delete IV->getBase(), since PE points to it. 5918d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // Replace the old base with the cast. This is important when doing 5919d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian // embedded rewrites. For example, [newInv->_container addObject:0]. 5920d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian IV->setBase(PE); 592102f8396a440b7b7a0354159e5371d29934aedd9cFariborz Jahanian } 5922fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff } 5923d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian 5924d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian ReplaceStmtWithRange(IV, Replacement, OldRange); 5925d5c3fa29c6a06ed9c74e03b4a96f786cbc156b7cFariborz Jahanian return Replacement; 5926fa15fd9db405f2d0a9811e94a671f7d7bc282385Steve Naroff} 5927176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 5928176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines#endif 5929