ASTContext.cpp revision 6a2b9261bf9c973c7122d9d1febce24a38fa862d
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com//===--- ASTContext.cpp - Context to hold long-lived AST nodes ------------===// 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com// 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com// The LLVM Compiler Infrastructure 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com// 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com// This file is distributed under the University of Illinois Open Source 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com// License. See LICENSE.TXT for details. 7971d0c8049c6bfc7a58f0b41f8f59f9ec9ca077bbsalomon@google.com// 857f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com//===----------------------------------------------------------------------===// 957f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com// 1057f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com// This file implements the ASTContext interface. 1157f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com// 1257f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com//===----------------------------------------------------------------------===// 1357f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com 1457f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com#include "clang/AST/ASTContext.h" 1557f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com#include "clang/AST/DeclCXX.h" 16b29c883fb46ac6099440d82ac57b86d25386daedbungeman@google.com#include "clang/AST/DeclObjC.h" 176f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com#include "clang/AST/DeclTemplate.h" 1837269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com#include "clang/AST/TypeLoc.h" 197bc13a62609149f0b535c2f3ff7210eb834d8b36epoger@google.com#include "clang/AST/Expr.h" 205f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com#include "clang/AST/ExternalASTSource.h" 21b9b9a18ab459c2616ac4a52c9f8cc0637d284229reed@android.com#include "clang/AST/RecordLayout.h" 22d9ba9a05d6f5766fdb1378b6ed84c0659009a8dascroggo@google.com#include "clang/Basic/Builtins.h" 238a85d0c4938173476d037d7af0ee3b9436a1234ereed@google.com#include "clang/Basic/SourceManager.h" 244370aedf7f55af74e9ebb4ad1c2e010c08236dfajunov@google.com#include "clang/Basic/TargetInfo.h" 25971d0c8049c6bfc7a58f0b41f8f59f9ec9ca077bbsalomon@google.com#include "llvm/ADT/StringExtras.h" 265e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org#include "llvm/Support/MathExtras.h" 27de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com#include "llvm/Support/MemoryBuffer.h" 28c41295d1223136da4f9e4c65b7145360684ede4bcommit-bot@chromium.org#include "RecordLayoutBuilder.h" 295af9b2032b552516c9223d9fb22185b022b13c62scroggo@google.com 308015dd83ae37147bb630d4751030868051ad0caereed@android.comusing namespace clang; 318015dd83ae37147bb630d4751030868051ad0caereed@android.com 328015dd83ae37147bb630d4751030868051ad0caereed@android.comenum FloatingRank { 33e3bb3bce3e9c1f3bc8ee779b1b3383c18e560bcecommit-bot@chromium.org FloatRank, DoubleRank, LongDoubleRank 34e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com}; 350dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 369875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.comASTContext::ASTContext(const LangOptions& LOpts, SourceManager &SM, 37977b9c8af3ef1b9a2fa2a0037cf3734cf2ba13d9robertphillips@google.com TargetInfo &t, 385e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org IdentifierTable &idents, SelectorTable &sels, 3972c9672ce274a3b6cb40800d66374edf25b157a3scroggo@google.com Builtin::Context &builtins, 40f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com bool FreeMem, unsigned size_reserve) : 4111db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com GlobalNestedNameSpecifier(0), CFConstantStringTypeDecl(0), 422a48c3adb7cf4fc754f99a41352210b4a99edf04bsalomon@google.com ObjCFastEnumerationStateTypeDecl(0), FILEDecl(0), jmp_bufDecl(0), 43310478e72c63e639373465216271b81f1e4a9136epoger@google.com sigjmp_bufDecl(0), SourceMgr(SM), LangOpts(LOpts), 443cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org LoadedExternalComments(false), FreeMemory(FreeMem), Target(t), 4572c9672ce274a3b6cb40800d66374edf25b157a3scroggo@google.com Idents(idents), Selectors(sels), 460770044da6d61dcbc8d9673fed8dd92460faa314reed@google.com BuiltinInfo(builtins), ExternalSource(0), PrintingPolicy(LOpts) { 47515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org ObjCIdRedefinitionType = QualType(); 48515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org ObjCClassRedefinitionType = QualType(); 49515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org if (size_reserve > 0) Types.reserve(size_reserve); 50515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org TUDecl = TranslationUnitDecl::Create(*this); 51515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org InitBuiltinTypes(); 52515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org} 53ed5eb4ef2aa1d6c705bc3ed466f9caba2a230a2bepoger@google.com 54ed5eb4ef2aa1d6c705bc3ed466f9caba2a230a2bepoger@google.comASTContext::~ASTContext() { 55cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com // Deallocate all the types. 56cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com while (!Types.empty()) { 57cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com Types.back()->Destroy(*this); 58cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com Types.pop_back(); 596f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com } 606f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com 616f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com { 62cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com llvm::FoldingSet<ExtQuals>::iterator 6380724dfeb320d1152128cd33636c9024952432d3epoger@google.com I = ExtQualNodes.begin(), E = ExtQualNodes.end(); 64cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com while (I != E) 65123ac1d4eab757052407064623643fdc59f85363bsalomon@google.com Deallocate(&*I++); 66cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com } 67cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com 68cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com { 6976c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.com llvm::DenseMap<const RecordDecl*, const ASTRecordLayout*>::iterator 7076c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.com I = ASTRecordLayouts.begin(), E = ASTRecordLayouts.end(); 718923c6cfd580ac9accb11b909fa2a033d69553aareed@google.com while (I != E) { 725e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 738923c6cfd580ac9accb11b909fa2a033d69553aareed@google.com delete R; 740770044da6d61dcbc8d9673fed8dd92460faa314reed@google.com } 759875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com } 769875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com 770770044da6d61dcbc8d9673fed8dd92460faa314reed@google.com { 7800dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com llvm::DenseMap<const ObjCContainerDecl*, const ASTRecordLayout*>::iterator 79e3cc2eb88fef9b2123c6ea2ed813ce53b6385926epoger@google.com I = ObjCLayouts.begin(), E = ObjCLayouts.end(); 80e3cc2eb88fef9b2123c6ea2ed813ce53b6385926epoger@google.com while (I != E) { 81e3cc2eb88fef9b2123c6ea2ed813ce53b6385926epoger@google.com ASTRecordLayout *R = const_cast<ASTRecordLayout*>((I++)->second); 82b29c883fb46ac6099440d82ac57b86d25386daedbungeman@google.com delete R; 83b29c883fb46ac6099440d82ac57b86d25386daedbungeman@google.com } 84b29c883fb46ac6099440d82ac57b86d25386daedbungeman@google.com } 85b29c883fb46ac6099440d82ac57b86d25386daedbungeman@google.com 8646cce91f4859b9c229938d4d649870c0a43b1806reed@google.com // Destroy nested-name-specifiers. 8746cce91f4859b9c229938d4d649870c0a43b1806reed@google.com for (llvm::FoldingSet<NestedNameSpecifier>::iterator 8846cce91f4859b9c229938d4d649870c0a43b1806reed@google.com NNS = NestedNameSpecifiers.begin(), 8946cce91f4859b9c229938d4d649870c0a43b1806reed@google.com NNSEnd = NestedNameSpecifiers.end(); 9000dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com NNS != NNSEnd; 9100dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com /* Increment in loop */) 9200dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com (*NNS++).Destroy(*this); 9300dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com 9400dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com if (GlobalNestedNameSpecifier) 953914958a49ee089ddeb04acc16373aae8bc2eaf7bsalomon@google.com GlobalNestedNameSpecifier->Destroy(*this); 963914958a49ee089ddeb04acc16373aae8bc2eaf7bsalomon@google.com 973914958a49ee089ddeb04acc16373aae8bc2eaf7bsalomon@google.com TUDecl->Destroy(*this); 983914958a49ee089ddeb04acc16373aae8bc2eaf7bsalomon@google.com} 99dd0ac281e920b01a63789893cc3e7422789658ddreed@android.com 10000dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.comvoid 101d4dfd10bb6f9bf3ac6e1ebc9bc3ae22c6d06321freed@google.comASTContext::setExternalSource(llvm::OwningPtr<ExternalASTSource> &Source) { 102dd0ac281e920b01a63789893cc3e7422789658ddreed@android.com ExternalSource.reset(Source.take()); 10300dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com} 104dd0ac281e920b01a63789893cc3e7422789658ddreed@android.com 10500dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.comvoid ASTContext::PrintStats() const { 106dd0ac281e920b01a63789893cc3e7422789658ddreed@android.com fprintf(stderr, "*** AST Context Stats:\n"); 10700dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com fprintf(stderr, " %d types total.\n", (int)Types.size()); 10800dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com 10900dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com unsigned counts[] = { 110d4dfd10bb6f9bf3ac6e1ebc9bc3ae22c6d06321freed@google.com#define TYPE(Name, Parent) 0, 11100dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com#define ABSTRACT_TYPE(Name, Parent) 112dd0ac281e920b01a63789893cc3e7422789658ddreed@android.com#include "clang/AST/TypeNodes.def" 11300dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com 0 // Extra 11400dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com }; 11500dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com 11600dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com for (unsigned i = 0, e = Types.size(); i != e; ++i) { 11700dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com Type *T = Types[i]; 11800dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com counts[(unsigned)T->getTypeClass()]++; 11900dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com } 120d4dfd10bb6f9bf3ac6e1ebc9bc3ae22c6d06321freed@google.com 12100dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com unsigned Idx = 0; 12200dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com unsigned TotalBytes = 0; 12300dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com#define TYPE(Name, Parent) \ 12400dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com if (counts[Idx]) \ 125ce057fec926f8ec1d60ed4722d1e51a0086e7976epoger@google.com fprintf(stderr, " %d %s types\n", (int)counts[Idx], #Name); \ 126ce057fec926f8ec1d60ed4722d1e51a0086e7976epoger@google.com TotalBytes += counts[Idx] * sizeof(Name##Type); \ 127ce057fec926f8ec1d60ed4722d1e51a0086e7976epoger@google.com ++Idx; 128ce057fec926f8ec1d60ed4722d1e51a0086e7976epoger@google.com#define ABSTRACT_TYPE(Name, Parent) 129ce057fec926f8ec1d60ed4722d1e51a0086e7976epoger@google.com#include "clang/AST/TypeNodes.def" 130686abdfab0e4c45de1fd30774896c46e43a299acvandebo@chromium.org 1313cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org fprintf(stderr, "Total bytes = %d\n", int(TotalBytes)); 1323cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org 1333cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org if (ExternalSource.get()) { 1343cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org fprintf(stderr, "\n"); 1353cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org ExternalSource->PrintStats(); 1363cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org } 1373cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org} 1383cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org 1393cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org 1403cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.orgvoid ASTContext::InitBuiltinType(QualType &R, BuiltinType::Kind K) { 141686abdfab0e4c45de1fd30774896c46e43a299acvandebo@chromium.org BuiltinType *Ty = new (*this, TypeAlignment) BuiltinType(K); 142686abdfab0e4c45de1fd30774896c46e43a299acvandebo@chromium.org R = QualType(Ty, 0); 1437361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com Types.push_back(Ty); 1447361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com} 1457361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com 1467361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.comvoid ASTContext::InitBuiltinTypes() { 147f28dd8ab109663a6fe67fd4ee3d66248e0dac686epoger@google.com assert(VoidTy.isNull() && "Context reinitialized?"); 1487361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com 1497361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com // C99 6.2.5p19. 1507361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com InitBuiltinType(VoidTy, BuiltinType::Void); 1517361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com 1529875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com // C99 6.2.5p2. 1537361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com InitBuiltinType(BoolTy, BuiltinType::Bool); 1547361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com // C99 6.2.5p3. 155cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com if (LangOpts.CharIsSigned) 1567361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com InitBuiltinType(CharTy, BuiltinType::Char_S); 1577361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com else 1587361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com InitBuiltinType(CharTy, BuiltinType::Char_U); 1594c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com // C99 6.2.5p4. 1609875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com InitBuiltinType(SignedCharTy, BuiltinType::SChar); 1619875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com InitBuiltinType(ShortTy, BuiltinType::Short); 1620dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org InitBuiltinType(IntTy, BuiltinType::Int); 1630dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org InitBuiltinType(LongTy, BuiltinType::Long); 1640dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org InitBuiltinType(LongLongTy, BuiltinType::LongLong); 1650dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 1660dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // C99 6.2.5p6. 1670dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org InitBuiltinType(UnsignedCharTy, BuiltinType::UChar); 16810afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org InitBuiltinType(UnsignedShortTy, BuiltinType::UShort); 16910afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org InitBuiltinType(UnsignedIntTy, BuiltinType::UInt); 170971aca75572ed6e0c5e1cc959173dc58ca7b6b8dreed@google.com InitBuiltinType(UnsignedLongTy, BuiltinType::ULong); 17110afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org InitBuiltinType(UnsignedLongLongTy, BuiltinType::ULongLong); 172971aca75572ed6e0c5e1cc959173dc58ca7b6b8dreed@google.com 17310afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org // C99 6.2.5p10. 17410afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org InitBuiltinType(FloatTy, BuiltinType::Float); 17510afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org InitBuiltinType(DoubleTy, BuiltinType::Double); 176971aca75572ed6e0c5e1cc959173dc58ca7b6b8dreed@google.com InitBuiltinType(LongDoubleTy, BuiltinType::LongDouble); 17710afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org 17810afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org // GNU extension, 128-bit integers. 179de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com InitBuiltinType(Int128Ty, BuiltinType::Int128); 180de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com InitBuiltinType(UnsignedInt128Ty, BuiltinType::UInt128); 181de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 182de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com if (LangOpts.CPlusPlus) // C++ 3.9.1p5 183de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com InitBuiltinType(WCharTy, BuiltinType::WChar); 184de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com else // C99 185de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com WCharTy = getFromTargetType(Target.getWCharType()); 186de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 187de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 188de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com InitBuiltinType(Char16Ty, BuiltinType::Char16); 189de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com else // C99 190de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Char16Ty = getFromTargetType(Target.getChar16Type()); 191608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org 19273a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com if (LangOpts.CPlusPlus) // C++0x 3.9.1p5, extension for C++ 193d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com InitBuiltinType(Char32Ty, BuiltinType::Char32); 1945079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com else // C99 1955079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com Char32Ty = getFromTargetType(Target.getChar32Type()); 1965079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com 1975079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com // Placeholder type for functions. 198de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com InitBuiltinType(OverloadTy, BuiltinType::Overload); 199de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 2006f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com // Placeholder type for type-dependent expressions whose type is 2016f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com // completely unknown. No code should ever check a type against 2025f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com // DependentTy and users should never see it; however, it is here to 2035f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com // help diagnose failures to properly check for type-dependent 204e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com // expressions. 205659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com InitBuiltinType(DependentTy, BuiltinType::Dependent); 206659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 207659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // Placeholder type for C++0x auto declarations whose real type has 208659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // not yet been deduced. 209659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com InitBuiltinType(UndeducedAutoTy, BuiltinType::UndeducedAuto); 210659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 211659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // C99 6.2.5p11. 212659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com FloatComplexTy = getComplexType(FloatTy); 213e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com DoubleComplexTy = getComplexType(DoubleTy); 21457f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com LongDoubleComplexTy = getComplexType(LongDoubleTy); 21557f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com 21657f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com BuiltinVaListType = QualType(); 217e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com 218e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com // "Builtin" typedefs set by Sema::ActOnTranslationUnitScope(). 219e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com ObjCIdTypedefType = QualType(); 220e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com ObjCClassTypedefType = QualType(); 221de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 22210afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org // Builtin types for 'id' and 'Class'. 22310afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org InitBuiltinType(ObjCBuiltinIdTy, BuiltinType::ObjCId); 224659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com InitBuiltinType(ObjCBuiltinClassTy, BuiltinType::ObjCClass); 225659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 226659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com ObjCConstantStringType = QualType(); 227659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 228659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // void * type 229659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com VoidPtrTy = getPointerType(VoidTy); 230659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 231659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // nullptr type (C++0x 2.14.7) 232659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com InitBuiltinType(NullPtrTy, BuiltinType::NullPtr); 233659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com} 234659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 235659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.comMemberSpecializationInfo * 236ccd7afb6fb2df9774e57fb4d7f62f9504cabf03escroggo@google.comASTContext::getInstantiatedFromStaticDataMember(const VarDecl *Var) { 237659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com assert(Var->isStaticDataMember() && "Not a static data member"); 238659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com llvm::DenseMap<const VarDecl *, MemberSpecializationInfo *>::iterator Pos 2396f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com = InstantiatedFromStaticDataMember.find(Var); 2406f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com if (Pos == InstantiatedFromStaticDataMember.end()) 2416f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com return 0; 2426f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com 2436f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com return Pos->second; 2446f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com} 2456f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com 2466f7f14d061b045a58a888ee5450b4596797dc453epoger@google.comvoid 2476f7f14d061b045a58a888ee5450b4596797dc453epoger@google.comASTContext::setInstantiatedFromStaticDataMember(VarDecl *Inst, VarDecl *Tmpl, 2486f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com TemplateSpecializationKind TSK) { 2496f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com assert(Inst->isStaticDataMember() && "Not a static data member"); 2506f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com assert(Tmpl->isStaticDataMember() && "Not a static data member"); 2516f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com assert(!InstantiatedFromStaticDataMember[Inst] && 2526f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com "Already noted what static data member was instantiated from"); 2536f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com InstantiatedFromStaticDataMember[Inst] 2546f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com = new (*this) MemberSpecializationInfo(Tmpl, TSK); 2556f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com} 2566f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com 2576f7f14d061b045a58a888ee5450b4596797dc453epoger@google.comUnresolvedUsingDecl * 2586f7f14d061b045a58a888ee5450b4596797dc453epoger@google.comASTContext::getInstantiatedFromUnresolvedUsingDecl(UsingDecl *UUD) { 2596f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com llvm::DenseMap<UsingDecl *, UnresolvedUsingDecl *>::iterator Pos 2606f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com = InstantiatedFromUnresolvedUsingDecl.find(UUD); 2616f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com if (Pos == InstantiatedFromUnresolvedUsingDecl.end()) 2626f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com return 0; 263de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 264de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com return Pos->second; 265de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com} 266de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 267de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.comvoid 268dac522589e9395b4654a1a708f1bd971f37f95a5commit-bot@chromium.orgASTContext::setInstantiatedFromUnresolvedUsingDecl(UsingDecl *UD, 269dac522589e9395b4654a1a708f1bd971f37f95a5commit-bot@chromium.org UnresolvedUsingDecl *UUD) { 270dac522589e9395b4654a1a708f1bd971f37f95a5commit-bot@chromium.org assert(!InstantiatedFromUnresolvedUsingDecl[UD] && 2715f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com "Already noted what using decl what instantiated from"); 2725f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com InstantiatedFromUnresolvedUsingDecl[UD] = UUD; 273dac522589e9395b4654a1a708f1bd971f37f95a5commit-bot@chromium.org} 2745f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 2755f6a00775511b5675607c2bfdbb096c0a815025depoger@google.comFieldDecl *ASTContext::getInstantiatedFromUnnamedFieldDecl(FieldDecl *Field) { 2765f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com llvm::DenseMap<FieldDecl *, FieldDecl *>::iterator Pos 2772b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org = InstantiatedFromUnnamedFieldDecl.find(Field); 2785efdd0cb9cdf4c2017dc6ad70b2503bf04234d9bepoger@google.com if (Pos == InstantiatedFromUnnamedFieldDecl.end()) 2795f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com return 0; 2805f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 2815f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com return Pos->second; 2825f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com} 283de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 284de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.comvoid ASTContext::setInstantiatedFromUnnamedFieldDecl(FieldDecl *Inst, 285de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com FieldDecl *Tmpl) { 286de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com assert(!Inst->getDeclName() && "Instantiated field decl is not unnamed"); 287de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com assert(!Tmpl->getDeclName() && "Template field decl is not unnamed"); 288de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com assert(!InstantiatedFromUnnamedFieldDecl[Inst] && 28979d3cb4ba74651ceaa862005a4244460e4662afdvandebo@chromium.org "Already noted what unnamed field was instantiated from"); 29010afbefa5b60b0f7e8d2b02f4c996de88aa26830mike@reedtribe.org 2910dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org InstantiatedFromUnnamedFieldDecl[Inst] = Tmpl; 2925f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com} 2935f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 2945f6a00775511b5675607c2bfdbb096c0a815025depoger@google.comnamespace { 295de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com class BeforeInTranslationUnit 2968a2ad3cae710f05cca57e48dd1732d575dba2dc7commit-bot@chromium.org : std::binary_function<SourceRange, SourceRange, bool> { 2970dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org SourceManager *SourceMgr; 2980dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 2990dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org public: 3002b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org explicit BeforeInTranslationUnit(SourceManager *SM) : SourceMgr(SM) { } 3010dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 3020dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org bool operator()(SourceRange X, SourceRange Y) { 3030dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org return SourceMgr->isBeforeInTranslationUnit(X.getBegin(), Y.getBegin()); 304de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com } 3059875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com }; 3066f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com} 307310478e72c63e639373465216271b81f1e4a9136epoger@google.com 3086f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com/// \brief Determine whether the given comment is a Doxygen-style comment. 309310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// 310310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// \param Start the start of the comment text. 311310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// 312310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// \param End the end of the comment text. 313310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// 314310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// \param Member whether we want to check whether this is a member comment 315310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// (which requires a < after the Doxygen-comment delimiter). Otherwise, 316310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// we only return true when we find a non-member comment. 317310478e72c63e639373465216271b81f1e4a9136epoger@google.comstatic bool 318310478e72c63e639373465216271b81f1e4a9136epoger@google.comisDoxygenComment(SourceManager &SourceMgr, SourceRange Comment, 319310478e72c63e639373465216271b81f1e4a9136epoger@google.com bool Member = false) { 320310478e72c63e639373465216271b81f1e4a9136epoger@google.com const char *BufferStart 321310478e72c63e639373465216271b81f1e4a9136epoger@google.com = SourceMgr.getBufferData(SourceMgr.getFileID(Comment.getBegin())).first; 322310478e72c63e639373465216271b81f1e4a9136epoger@google.com const char *Start = BufferStart + SourceMgr.getFileOffset(Comment.getBegin()); 32385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org const char* End = BufferStart + SourceMgr.getFileOffset(Comment.getEnd()); 324310478e72c63e639373465216271b81f1e4a9136epoger@google.com 325310478e72c63e639373465216271b81f1e4a9136epoger@google.com if (End - Start < 4) 326310478e72c63e639373465216271b81f1e4a9136epoger@google.com return false; 327310478e72c63e639373465216271b81f1e4a9136epoger@google.com 3283a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com assert(Start[0] == '/' && "Not a comment?"); 3293a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com if (Start[1] == '*' && !(Start[2] == '!' || Start[2] == '*')) 3303e62ebf93b43139202ce803245411467c7ed13ffcommit-bot@chromium.org return false; 3313e62ebf93b43139202ce803245411467c7ed13ffcommit-bot@chromium.org if (Start[1] == '/' && !(Start[2] == '!' || Start[2] == '/')) 3323e62ebf93b43139202ce803245411467c7ed13ffcommit-bot@chromium.org return false; 3333a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com 3343a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com return (Start[3] == '<') == Member; 3353a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com} 3363a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com 3373a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com/// \brief Retrieve the comment associated with the given declaration, if 3383a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com/// it has one. 3393a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.comconst char *ASTContext::getCommentForDecl(const Decl *D) { 34085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (!D) 34185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return 0; 34285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 34385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // Check whether we have cached a comment string for this declaration 34485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // already. 34585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org llvm::DenseMap<const Decl *, std::string>::iterator Pos 34685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org = DeclComments.find(D); 34785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (Pos != DeclComments.end()) 34885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return Pos->second.c_str(); 34985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 35085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // If we have an external AST source and have not yet loaded comments from 35185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // that source, do so now. 35285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (ExternalSource && !LoadedExternalComments) { 35385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org std::vector<SourceRange> LoadedComments; 35485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org ExternalSource->ReadComments(LoadedComments); 35585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 35685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (!LoadedComments.empty()) 35785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Comments.insert(Comments.begin(), LoadedComments.begin(), 35885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org LoadedComments.end()); 35985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 36085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org LoadedExternalComments = true; 361310478e72c63e639373465216271b81f1e4a9136epoger@google.com } 362310478e72c63e639373465216271b81f1e4a9136epoger@google.com 363310478e72c63e639373465216271b81f1e4a9136epoger@google.com // If there are no comments anywhere, we won't find anything. 364310478e72c63e639373465216271b81f1e4a9136epoger@google.com if (Comments.empty()) 365310478e72c63e639373465216271b81f1e4a9136epoger@google.com return 0; 366659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 367659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // If the declaration doesn't map directly to a location in a file, we 368310478e72c63e639373465216271b81f1e4a9136epoger@google.com // can't find the comment. 369310478e72c63e639373465216271b81f1e4a9136epoger@google.com SourceLocation DeclStartLoc = D->getLocStart(); 370310478e72c63e639373465216271b81f1e4a9136epoger@google.com if (DeclStartLoc.isInvalid() || !DeclStartLoc.isFileID()) 371310478e72c63e639373465216271b81f1e4a9136epoger@google.com return 0; 372310478e72c63e639373465216271b81f1e4a9136epoger@google.com 373310478e72c63e639373465216271b81f1e4a9136epoger@google.com // Find the comment that occurs just before this declaration. 374310478e72c63e639373465216271b81f1e4a9136epoger@google.com std::vector<SourceRange>::iterator LastComment 375310478e72c63e639373465216271b81f1e4a9136epoger@google.com = std::lower_bound(Comments.begin(), Comments.end(), 3766f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com SourceRange(DeclStartLoc), 37715655b241bfe1d77032e88115f119684722c10e0epoger@google.com BeforeInTranslationUnit(&SourceMgr)); 378eb06636133b6b5971964e5bce5ce5ca71d9ea960epoger@google.com 379eb06636133b6b5971964e5bce5ce5ca71d9ea960epoger@google.com // Decompose the location for the start of the declaration and find the 380310478e72c63e639373465216271b81f1e4a9136epoger@google.com // beginning of the file buffer. 381659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com std::pair<FileID, unsigned> DeclStartDecomp 382caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com = SourceMgr.getDecomposedLoc(DeclStartLoc); 383310478e72c63e639373465216271b81f1e4a9136epoger@google.com const char *FileBufferStart 384310478e72c63e639373465216271b81f1e4a9136epoger@google.com = SourceMgr.getBufferData(DeclStartDecomp.first).first; 385310478e72c63e639373465216271b81f1e4a9136epoger@google.com 386310478e72c63e639373465216271b81f1e4a9136epoger@google.com // First check whether we have a comment for a member. 387310478e72c63e639373465216271b81f1e4a9136epoger@google.com if (LastComment != Comments.end() && 38857f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com !isa<TagDecl>(D) && !isa<NamespaceDecl>(D) && 389310478e72c63e639373465216271b81f1e4a9136epoger@google.com isDoxygenComment(SourceMgr, *LastComment, true)) { 39015655b241bfe1d77032e88115f119684722c10e0epoger@google.com std::pair<FileID, unsigned> LastCommentEndDecomp 391310478e72c63e639373465216271b81f1e4a9136epoger@google.com = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 392310478e72c63e639373465216271b81f1e4a9136epoger@google.com if (DeclStartDecomp.first == LastCommentEndDecomp.first && 393310478e72c63e639373465216271b81f1e4a9136epoger@google.com SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second) 394310478e72c63e639373465216271b81f1e4a9136epoger@google.com == SourceMgr.getLineNumber(LastCommentEndDecomp.first, 395310478e72c63e639373465216271b81f1e4a9136epoger@google.com LastCommentEndDecomp.second)) { 396310478e72c63e639373465216271b81f1e4a9136epoger@google.com // The Doxygen member comment comes after the declaration starts and 397310478e72c63e639373465216271b81f1e4a9136epoger@google.com // is on the same line and in the same file as the declaration. This 398310478e72c63e639373465216271b81f1e4a9136epoger@google.com // is the comment we want. 3995079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com std::string &Result = DeclComments[D]; 400310478e72c63e639373465216271b81f1e4a9136epoger@google.com Result.append(FileBufferStart + 401310478e72c63e639373465216271b81f1e4a9136epoger@google.com SourceMgr.getFileOffset(LastComment->getBegin()), 402310478e72c63e639373465216271b81f1e4a9136epoger@google.com FileBufferStart + LastCommentEndDecomp.second + 1); 403310478e72c63e639373465216271b81f1e4a9136epoger@google.com return Result.c_str(); 40457f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com } 40557f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com } 406310478e72c63e639373465216271b81f1e4a9136epoger@google.com 40751dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com if (LastComment == Comments.begin()) 40851dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com return 0; 40951dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com --LastComment; 41051dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com 41151dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com // Decompose the end of the comment. 41251dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com std::pair<FileID, unsigned> LastCommentEndDecomp 4135079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com = SourceMgr.getDecomposedLoc(LastComment->getEnd()); 41451dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com 41551dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com // If the comment and the declaration aren't in the same file, then they 41651dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com // aren't related. 41751dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com if (DeclStartDecomp.first != LastCommentEndDecomp.first) 41851dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com return 0; 41951dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com 42051dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com // Check that we actually have a Doxygen comment. 42151dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com if (!isDoxygenComment(SourceMgr, *LastComment)) 42251dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com return 0; 42351dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com 42451dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com // Compute the starting line for the declaration and for the end of the 42551dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com // comment (this is expensive). 42651dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com unsigned DeclStartLine 42751dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com = SourceMgr.getLineNumber(DeclStartDecomp.first, DeclStartDecomp.second); 42851dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com unsigned CommentEndLine 42951dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com = SourceMgr.getLineNumber(LastCommentEndDecomp.first, 43051dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com LastCommentEndDecomp.second); 43151dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com 4322b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org // If the comment does not end on the line prior to the declaration, then 43351dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com // the comment is not associated with the declaration at all. 43451dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com if (CommentEndLine + 1 != DeclStartLine) 43551dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com return 0; 436310478e72c63e639373465216271b81f1e4a9136epoger@google.com 43751dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com // We have a comment, but there may be more comments on the previous lines. 43851dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com // Keep looking so long as the comments are still Doxygen comments and are 439310478e72c63e639373465216271b81f1e4a9136epoger@google.com // still adjacent. 44051dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com unsigned ExpectedLine 441310478e72c63e639373465216271b81f1e4a9136epoger@google.com = SourceMgr.getSpellingLineNumber(LastComment->getBegin()) - 1; 442310478e72c63e639373465216271b81f1e4a9136epoger@google.com std::vector<SourceRange>::iterator FirstComment = LastComment; 443310478e72c63e639373465216271b81f1e4a9136epoger@google.com while (FirstComment != Comments.begin()) { 444310478e72c63e639373465216271b81f1e4a9136epoger@google.com // Look at the previous comment 445310478e72c63e639373465216271b81f1e4a9136epoger@google.com --FirstComment; 446310478e72c63e639373465216271b81f1e4a9136epoger@google.com std::pair<FileID, unsigned> Decomp 447310478e72c63e639373465216271b81f1e4a9136epoger@google.com = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4482b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org 449310478e72c63e639373465216271b81f1e4a9136epoger@google.com // If this previous comment is in a different file, we're done. 450310478e72c63e639373465216271b81f1e4a9136epoger@google.com if (Decomp.first != DeclStartDecomp.first) { 451310478e72c63e639373465216271b81f1e4a9136epoger@google.com ++FirstComment; 45251dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com break; 45357f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com } 4542b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org 45557f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com // If this comment is not a Doxygen comment, we're done. 45657f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com if (!isDoxygenComment(SourceMgr, *FirstComment)) { 4570dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org ++FirstComment; 458de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com break; 4590dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org } 4602b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org 4610dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // If the line number is not what we expected, we're done. 4620dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org unsigned Line = SourceMgr.getLineNumber(Decomp.first, Decomp.second); 4630dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (Line != ExpectedLine) { 464de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com ++FirstComment; 4659875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com break; 4665f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com } 4675f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 4685f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com // Set the next expected line number. 4695f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com ExpectedLine 4705f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com = SourceMgr.getSpellingLineNumber(FirstComment->getBegin()) - 1; 4715f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com } 4725f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 4735f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com // The iterator range [FirstComment, LastComment] contains all of the 4745f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com // BCPL comments that, together, are associated with this declaration. 4755f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com // Form a single comment block string for this declaration that concatenates 4765f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com // all of these comments. 477de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com std::string &Result = DeclComments[D]; 478de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com while (FirstComment != LastComment) { 479eb9a46cbbb475e862a084aa2224ec18d4ac5e95breed@google.com std::pair<FileID, unsigned> DecompStart 480dbfac8a72393eaf01670aeb3244de0e18d8faf98junov@google.com = SourceMgr.getDecomposedLoc(FirstComment->getBegin()); 48179d3cb4ba74651ceaa862005a4244460e4662afdvandebo@chromium.org std::pair<FileID, unsigned> DecompEnd 4829875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com = SourceMgr.getDecomposedLoc(FirstComment->getEnd()); 4835f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com Result.append(FileBufferStart + DecompStart.second, 4845f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com FileBufferStart + DecompEnd.second + 1); 4855f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com ++FirstComment; 4865f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com } 4875f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 4885f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com // Append the last comment line. 4895f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com Result.append(FileBufferStart + 4905f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com SourceMgr.getFileOffset(LastComment->getBegin()), 4915f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com FileBufferStart + LastCommentEndDecomp.second + 1); 4925f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com return Result.c_str(); 4935f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com} 4945f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 4955f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com//===----------------------------------------------------------------------===// 4965f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com// Type Sizing and Analysis 4975f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com//===----------------------------------------------------------------------===// 4985f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 4995f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// getFloatTypeSemantics - Return the APFloat 'semantics' for the specified 5005f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// scalar floating point type. 5015f6a00775511b5675607c2bfdbb096c0a815025depoger@google.comconst llvm::fltSemantics &ASTContext::getFloatTypeSemantics(QualType T) const { 5025f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com const BuiltinType *BT = T->getAs<BuiltinType>(); 5035f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com assert(BT && "Not a floating point type!"); 5045f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com switch (BT->getKind()) { 5055f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com default: assert(0 && "Not a floating point type!"); 5065f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com case BuiltinType::Float: return Target.getFloatFormat(); 5075f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com case BuiltinType::Double: return Target.getDoubleFormat(); 5085f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com case BuiltinType::LongDouble: return Target.getLongDoubleFormat(); 5095f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com } 510908f5836626d792c5e33ad93f44c6a418a0cc8f5epoger@google.com} 5115f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 5125f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// getDeclAlignInBytes - Return a conservative estimate of the alignment of the 5135f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// specified decl. Note that bitfields do not have a valid alignment, so 5145f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// this method will assert on them. 515908f5836626d792c5e33ad93f44c6a418a0cc8f5epoger@google.comunsigned ASTContext::getDeclAlignInBytes(const Decl *D) { 5165f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com unsigned Align = Target.getCharWidth(); 5175f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 5185f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com if (const AlignedAttr* AA = D->getAttr<AlignedAttr>()) 5195f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com Align = std::max(Align, AA->getAlignment()); 5205f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 5215f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com if (const ValueDecl *VD = dyn_cast<ValueDecl>(D)) { 522908f5836626d792c5e33ad93f44c6a418a0cc8f5epoger@google.com QualType T = VD->getType(); 5235f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com if (const ReferenceType* RT = T->getAs<ReferenceType>()) { 5245f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com unsigned AS = RT->getPointeeType().getAddressSpace(); 5255f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com Align = Target.getPointerAlign(AS); 5265f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com } else if (!T->isIncompleteType() && !T->isFunctionType()) { 527908f5836626d792c5e33ad93f44c6a418a0cc8f5epoger@google.com // Incomplete or function types default to 1. 5285f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com while (isa<VariableArrayType>(T) || isa<IncompleteArrayType>(T)) 5295f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com T = cast<ArrayType>(T)->getElementType(); 5305f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 5315f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com Align = std::max(Align, getPreferredTypeAlign(T.getTypePtr())); 5325f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com } 5335f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com } 5345f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com 5355f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com return Align / Target.getCharWidth(); 5365f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com} 537908f5836626d792c5e33ad93f44c6a418a0cc8f5epoger@google.com 5385f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// getTypeSize - Return the size of the specified type, in bits. This method 5395f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// does not work on incomplete types. 5405f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// 5415f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// FIXME: Pointers into different addr spaces could have different sizes and 5425f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com/// alignment requirements: getPointerInfo should take an AddrSpace, this 54309fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com/// should take a QualType, &c. 5449875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.comstd::pair<uint64_t, unsigned> 545aef73617d1bcede80145a13639668f958a3863d8reed@google.comASTContext::getTypeInfo(const Type *T) { 546de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com uint64_t Width=0; 5479875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com unsigned Align=8; 548de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com switch (T->getTypeClass()) { 549de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com#define TYPE(Class, Base) 550de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com#define ABSTRACT_TYPE(Class, Base) 551de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com#define NON_CANONICAL_TYPE(Class, Base) 552aef73617d1bcede80145a13639668f958a3863d8reed@google.com#define DEPENDENT_TYPE(Class, Base) case Type::Class: 553de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com#include "clang/AST/TypeNodes.def" 554de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com assert(false && "Should not see dependent types"); 555de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com break; 556b29c883fb46ac6099440d82ac57b86d25386daedbungeman@google.com 5576f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com case Type::ObjCProtocolList: 558123ac1d4eab757052407064623643fdc59f85363bsalomon@google.com assert(false && "Should not see protocol list types"); 5596f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com break; 5606f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com 561de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com case Type::FunctionNoProto: 562de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com case Type::FunctionProto: 56311db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com // GCC extension: alignof(function) = 32 bits 56411db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com Width = 0; 565de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Align = 32; 56611db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com break; 567de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 568b29c883fb46ac6099440d82ac57b86d25386daedbungeman@google.com case Type::IncompleteArray: 569de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com case Type::VariableArray: 57011db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com Width = 0; 57111db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com Align = getTypeAlign(cast<ArrayType>(T)->getElementType()); 57211db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com break; 573de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 57411db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com case Type::ConstantArray: { 575de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com const ConstantArrayType *CAT = cast<ConstantArrayType>(T); 57611db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com 577de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com std::pair<uint64_t, unsigned> EltInfo = getTypeInfo(CAT->getElementType()); 578aef73617d1bcede80145a13639668f958a3863d8reed@google.com Width = EltInfo.first*CAT->getSize().getZExtValue(); 579de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Align = EltInfo.second; 580de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com break; 581de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com } 582de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com case Type::ExtVector: 58311db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com case Type::Vector: { 584de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com std::pair<uint64_t, unsigned> EltInfo = 58511db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com getTypeInfo(cast<VectorType>(T)->getElementType()); 586de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Width = EltInfo.first*cast<VectorType>(T)->getNumElements(); 58711db6fa9b9fc30b1f504d9f53e0f6ae7149cc5c5reed@google.com Align = Width; 588de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // If the alignment is not a power of 2, round up to the next power of 2. 589aef73617d1bcede80145a13639668f958a3863d8reed@google.com // This happens for non-power-of-2 length vectors. 590de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // FIXME: this should probably be a target property. 591de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Align = 1 << llvm::Log2_32_Ceil(Align); 592de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com break; 593dac522589e9395b4654a1a708f1bd971f37f95a5commit-bot@chromium.org } 594de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 595de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com case Type::Builtin: 596de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com switch (cast<BuiltinType>(T)->getKind()) { 5975f6a00775511b5675607c2bfdbb096c0a815025depoger@google.com default: assert(0 && "Unknown builtin type!"); 5986f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com case BuiltinType::Void: 59946cce91f4859b9c229938d4d649870c0a43b1806reed@google.com // GCC extension: alignof(void) = 8 bits. 600de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Width = 0; 601de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Align = 8; 602c938c48bf426c322e2cb45b4bfaf8a2ee5a2a3c5junov@chromium.org break; 6035a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com 6045a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::Bool: 605de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Width = Target.getBoolWidth(); 606de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Align = Target.getBoolAlign(); 6075a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com break; 6085a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::Char_S: 6095a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::Char_U: 6105a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::UChar: 6115a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::SChar: 612041e2dbc0614e3341e1349fd0e962744a45b6194skia.committer@gmail.com Width = Target.getCharWidth(); 6135a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Align = Target.getCharAlign(); 6145a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com break; 6155a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::WChar: 6165a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Width = Target.getWCharWidth(); 6175a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Align = Target.getWCharAlign(); 6185a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com break; 6195a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::Char16: 6205a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Width = Target.getChar16Width(); 6215a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Align = Target.getChar16Align(); 6225a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com break; 6235a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::Char32: 6245a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Width = Target.getChar32Width(); 6255a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Align = Target.getChar32Align(); 6265a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com break; 6275a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::UShort: 6285a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::Short: 629041e2dbc0614e3341e1349fd0e962744a45b6194skia.committer@gmail.com Width = Target.getShortWidth(); 6305a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Align = Target.getShortAlign(); 6315a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com break; 6325a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::UInt: 6335a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::Int: 6345a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Width = Target.getIntWidth(); 635041e2dbc0614e3341e1349fd0e962744a45b6194skia.committer@gmail.com Align = Target.getIntAlign(); 636041e2dbc0614e3341e1349fd0e962744a45b6194skia.committer@gmail.com break; 6375a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::ULong: 6385a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::Long: 6395a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Width = Target.getLongWidth(); 6405a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Align = Target.getLongAlign(); 6415a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com break; 6425a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::ULongLong: 6435a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::LongLong: 6445a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Width = Target.getLongLongWidth(); 6455a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com Align = Target.getLongLongAlign(); 6465a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com break; 6475a7d029fd6fcdf161b58c09887c6f745c37f1855robertphillips@google.com case BuiltinType::Int128: 648b29c883fb46ac6099440d82ac57b86d25386daedbungeman@google.com case BuiltinType::UInt128: 649de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Width = 128; 6505e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Align = 128; // int128_t is 128-bit aligned on all targets. 651de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com break; 652de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com case BuiltinType::Float: 6535e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Width = Target.getFloatWidth(); 6545e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Align = Target.getFloatAlign(); 65573a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com break; 65673a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com case BuiltinType::Double: 65773a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com Width = Target.getDoubleWidth(); 65873a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com Align = Target.getDoubleAlign(); 659de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com break; 6605e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org case BuiltinType::LongDouble: 6615e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Width = Target.getLongDoubleWidth(); 6625e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Align = Target.getLongDoubleAlign(); 663de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com break; 6645e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org case BuiltinType::NullPtr: 6655e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Width = Target.getPointerWidth(0); // C++ 3.9.1p11: sizeof(nullptr_t) 6665e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Align = Target.getPointerAlign(0); // == sizeof(void*) 6675e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org break; 6685e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org } 6695e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org break; 6705e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org case Type::FixedWidthInt: 6715e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org // FIXME: This isn't precisely correct; the width/alignment should depend 6725e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org // on the available types for the target 6735e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Width = cast<FixedWidthIntType>(T)->getWidth(); 6745e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Width = std::max(llvm::NextPowerOf2(Width - 1), (uint64_t)8); 6755e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Align = Width; 6765e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org break; 6775e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org case Type::ObjCObjectPointer: 6785e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Width = Target.getPointerWidth(0); 6795e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Align = Target.getPointerAlign(0); 6805e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org break; 6815e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org case Type::BlockPointer: { 6825e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org unsigned AS = cast<BlockPointerType>(T)->getPointeeType().getAddressSpace(); 6835e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Width = Target.getPointerWidth(AS); 6845e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Align = Target.getPointerAlign(AS); 6855e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org break; 6865e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org } 6875e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org case Type::Pointer: { 6885e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org unsigned AS = cast<PointerType>(T)->getPointeeType().getAddressSpace(); 68973a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com Width = Target.getPointerWidth(AS); 6905e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org Align = Target.getPointerAlign(AS); 6915e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org break; 6925e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org } 6935e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org case Type::LValueReference: 6945e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org case Type::RValueReference: 6955e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org // "When applied to a reference or a reference type, the result is the size 6965e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org // of the referenced type." C++98 5.3.3p2: expr.sizeof. 6975e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org // FIXME: This is wrong for struct layout: a reference in a struct has 6985e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org // pointer size. 6999875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com return getTypeInfo(cast<ReferenceType>(T)->getPointeeType()); 700de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com case Type::MemberPointer: { 701de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // FIXME: This is ABI dependent. We use the Itanium C++ ABI. 702de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // http://www.codesourcery.com/public/cxx-abi/abi.html#member-pointers 703de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // If we ever want to support other ABIs this needs to be abstracted. 704de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 705de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com QualType Pointee = cast<MemberPointerType>(T)->getPointeeType(); 706de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com std::pair<uint64_t, unsigned> PtrDiffInfo = 707de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com getTypeInfo(getPointerDiffType()); 708de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Width = PtrDiffInfo.first; 709de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com if (Pointee->isFunctionType()) 710de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Width *= 2; 711de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Align = PtrDiffInfo.second; 712de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com break; 713de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com } 714de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com case Type::Complex: { 715de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // Complex types have the same alignment as their elements, but twice the 716de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // size. 717de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com std::pair<uint64_t, unsigned> EltInfo = 718de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com getTypeInfo(cast<ComplexType>(T)->getElementType()); 719aef73617d1bcede80145a13639668f958a3863d8reed@google.com Width = EltInfo.first*2; 720de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Align = EltInfo.second; 721de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com break; 722de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com } 723de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com case Type::ObjCInterface: { 7249875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com const ObjCInterfaceType *ObjCI = cast<ObjCInterfaceType>(T); 7259875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com const ASTRecordLayout &Layout = getASTObjCInterfaceLayout(ObjCI->getDecl()); 72637269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com Width = Layout.getSize(); 72784a1802b072d76657261eada3018955283ab29d2epoger@google.com Align = Layout.getAlignment(); 72884a1802b072d76657261eada3018955283ab29d2epoger@google.com break; 72984a1802b072d76657261eada3018955283ab29d2epoger@google.com } 73084a1802b072d76657261eada3018955283ab29d2epoger@google.com case Type::Record: 73184a1802b072d76657261eada3018955283ab29d2epoger@google.com case Type::Enum: { 73284a1802b072d76657261eada3018955283ab29d2epoger@google.com const TagType *TT = cast<TagType>(T); 73384a1802b072d76657261eada3018955283ab29d2epoger@google.com 73484a1802b072d76657261eada3018955283ab29d2epoger@google.com if (TT->getDecl()->isInvalidDecl()) { 73584a1802b072d76657261eada3018955283ab29d2epoger@google.com Width = 1; 73684a1802b072d76657261eada3018955283ab29d2epoger@google.com Align = 1; 7372b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org break; 7382b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org } 73984a1802b072d76657261eada3018955283ab29d2epoger@google.com 74084a1802b072d76657261eada3018955283ab29d2epoger@google.com if (const EnumType *ET = dyn_cast<EnumType>(TT)) 74184a1802b072d76657261eada3018955283ab29d2epoger@google.com return getTypeInfo(ET->getDecl()->getIntegerType()); 742dac522589e9395b4654a1a708f1bd971f37f95a5commit-bot@chromium.org 743dac522589e9395b4654a1a708f1bd971f37f95a5commit-bot@chromium.org const RecordType *RT = cast<RecordType>(TT); 7442b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org const ASTRecordLayout &Layout = getASTRecordLayout(RT->getDecl()); 7452b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org Width = Layout.getSize(); 74684a1802b072d76657261eada3018955283ab29d2epoger@google.com Align = Layout.getAlignment(); 74784a1802b072d76657261eada3018955283ab29d2epoger@google.com break; 74884a1802b072d76657261eada3018955283ab29d2epoger@google.com } 74984a1802b072d76657261eada3018955283ab29d2epoger@google.com 75084a1802b072d76657261eada3018955283ab29d2epoger@google.com case Type::Elaborated: { 75184a1802b072d76657261eada3018955283ab29d2epoger@google.com return getTypeInfo(cast<ElaboratedType>(T)->getUnderlyingType().getTypePtr()); 75284a1802b072d76657261eada3018955283ab29d2epoger@google.com } 75384a1802b072d76657261eada3018955283ab29d2epoger@google.com 75484a1802b072d76657261eada3018955283ab29d2epoger@google.com case Type::Typedef: { 75584a1802b072d76657261eada3018955283ab29d2epoger@google.com const TypedefDecl *Typedef = cast<TypedefType>(T)->getDecl(); 75684a1802b072d76657261eada3018955283ab29d2epoger@google.com if (const AlignedAttr *Aligned = Typedef->getAttr<AlignedAttr>()) { 75784a1802b072d76657261eada3018955283ab29d2epoger@google.com Align = Aligned->getAlignment(); 75884a1802b072d76657261eada3018955283ab29d2epoger@google.com Width = getTypeSize(Typedef->getUnderlyingType().getTypePtr()); 75984a1802b072d76657261eada3018955283ab29d2epoger@google.com } else 76084a1802b072d76657261eada3018955283ab29d2epoger@google.com return getTypeInfo(Typedef->getUnderlyingType().getTypePtr()); 76184a1802b072d76657261eada3018955283ab29d2epoger@google.com break; 76284a1802b072d76657261eada3018955283ab29d2epoger@google.com } 76384a1802b072d76657261eada3018955283ab29d2epoger@google.com 76484a1802b072d76657261eada3018955283ab29d2epoger@google.com case Type::TypeOfExpr: 76584a1802b072d76657261eada3018955283ab29d2epoger@google.com return getTypeInfo(cast<TypeOfExprType>(T)->getUnderlyingExpr()->getType() 76684a1802b072d76657261eada3018955283ab29d2epoger@google.com .getTypePtr()); 76784a1802b072d76657261eada3018955283ab29d2epoger@google.com 76884a1802b072d76657261eada3018955283ab29d2epoger@google.com case Type::TypeOf: 76984a1802b072d76657261eada3018955283ab29d2epoger@google.com return getTypeInfo(cast<TypeOfType>(T)->getUnderlyingType().getTypePtr()); 77084a1802b072d76657261eada3018955283ab29d2epoger@google.com 77184a1802b072d76657261eada3018955283ab29d2epoger@google.com case Type::Decltype: 77284a1802b072d76657261eada3018955283ab29d2epoger@google.com return getTypeInfo(cast<DecltypeType>(T)->getUnderlyingExpr()->getType() 77384a1802b072d76657261eada3018955283ab29d2epoger@google.com .getTypePtr()); 77484a1802b072d76657261eada3018955283ab29d2epoger@google.com 77584a1802b072d76657261eada3018955283ab29d2epoger@google.com case Type::QualifiedName: 7762b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org return getTypeInfo(cast<QualifiedNameType>(T)->getNamedType().getTypePtr()); 7772b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org 7782b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org case Type::TemplateSpecialization: 77984a1802b072d76657261eada3018955283ab29d2epoger@google.com assert(getCanonicalType(T) != T && 78084a1802b072d76657261eada3018955283ab29d2epoger@google.com "Cannot request the size of a dependent type"); 78184a1802b072d76657261eada3018955283ab29d2epoger@google.com // FIXME: this is likely to be wrong once we support template 782908f5836626d792c5e33ad93f44c6a418a0cc8f5epoger@google.com // aliases, since a template alias could refer to a typedef that 7836f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com // has an __aligned__ attribute on it. 78437269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com return getTypeInfo(getCanonicalType(T)); 78537269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com } 78637269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com 7875f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com assert(Align && (Align & (Align-1)) == 0 && "Alignment must be power of 2"); 78837269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com return std::make_pair(Width, Align); 78937269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com} 7906f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com 791659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com/// getPreferredTypeAlign - Return the "preferred" alignment of the specified 792659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com/// type for the current target in bits. This can be different than the ABI 79337269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com/// alignment in cases where it is beneficial for performance to overalign 79437269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com/// a data type. 795caac3db48f74676889006b5520b766b572b5e9b2epoger@google.comunsigned ASTContext::getPreferredTypeAlign(const Type *T) { 796caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com unsigned ABIAlign = getTypeAlign(T); 797caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com 798caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com // Double and long long should be naturally aligned if possible. 799caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com if (const ComplexType* CT = T->getAs<ComplexType>()) 80037269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com T = CT->getElementType().getTypePtr(); 8016f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com if (T->isSpecificBuiltinType(BuiltinType::Double) || 8026f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com T->isSpecificBuiltinType(BuiltinType::LongLong)) 803659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com return std::max(ABIAlign, (unsigned)getTypeSize(T)); 804659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 805caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com return ABIAlign; 8066f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com} 807659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 808659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.comstatic void CollectLocalObjCIvars(ASTContext *Ctx, 80937269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com const ObjCInterfaceDecl *OI, 810ce057fec926f8ec1d60ed4722d1e51a0086e7976epoger@google.com llvm::SmallVectorImpl<FieldDecl*> &Fields) { 811ce057fec926f8ec1d60ed4722d1e51a0086e7976epoger@google.com for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 81237269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com E = OI->ivar_end(); I != E; ++I) { 81337269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com ObjCIvarDecl *IVDecl = *I; 81437269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com if (!IVDecl->isInvalidDecl()) 8156f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com Fields.push_back(cast<FieldDecl>(IVDecl)); 8165f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com } 8175f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com} 8185f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com 8195f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.comvoid ASTContext::CollectObjCIvars(const ObjCInterfaceDecl *OI, 8205f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com llvm::SmallVectorImpl<FieldDecl*> &Fields) { 8215f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com if (const ObjCInterfaceDecl *SuperClass = OI->getSuperClass()) 8225f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com CollectObjCIvars(SuperClass, Fields); 8235f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com CollectLocalObjCIvars(this, OI, Fields); 8245f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com} 8255f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com 8266f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com/// ShallowCollectObjCIvars - 827caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com/// Collect all ivars, including those synthesized, in the current class. 828caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com/// 829caac3db48f74676889006b5520b766b572b5e9b2epoger@google.comvoid ASTContext::ShallowCollectObjCIvars(const ObjCInterfaceDecl *OI, 830caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars, 831caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com bool CollectSynthesized) { 832caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com for (ObjCInterfaceDecl::ivar_iterator I = OI->ivar_begin(), 833caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com E = OI->ivar_end(); I != E; ++I) { 834caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com Ivars.push_back(*I); 83584a1802b072d76657261eada3018955283ab29d2epoger@google.com } 83684a1802b072d76657261eada3018955283ab29d2epoger@google.com if (CollectSynthesized) 83784a1802b072d76657261eada3018955283ab29d2epoger@google.com CollectSynthesizedIvars(OI, Ivars); 83837269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com} 8396f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com 8406f7f14d061b045a58a888ee5450b4596797dc453epoger@google.comvoid ASTContext::CollectProtocolSynthesizedIvars(const ObjCProtocolDecl *PD, 8416f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 8426f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 843de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com E = PD->prop_end(); I != E; ++I) 84484a1802b072d76657261eada3018955283ab29d2epoger@google.com if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 84584a1802b072d76657261eada3018955283ab29d2epoger@google.com Ivars.push_back(Ivar); 84684a1802b072d76657261eada3018955283ab29d2epoger@google.com 84784a1802b072d76657261eada3018955283ab29d2epoger@google.com // Also look into nested protocols. 84884a1802b072d76657261eada3018955283ab29d2epoger@google.com for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 8496f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com E = PD->protocol_end(); P != E; ++P) 8506f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com CollectProtocolSynthesizedIvars(*P, Ivars); 85184a1802b072d76657261eada3018955283ab29d2epoger@google.com} 852ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com 85337269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com/// CollectSynthesizedIvars - 85437269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com/// This routine collect synthesized ivars for the designated class. 8556f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com/// 85637269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.comvoid ASTContext::CollectSynthesizedIvars(const ObjCInterfaceDecl *OI, 85737269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com llvm::SmallVectorImpl<ObjCIvarDecl*> &Ivars) { 85837269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 85937269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com E = OI->prop_end(); I != E; ++I) { 8606f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com if (ObjCIvarDecl *Ivar = (*I)->getPropertyIvarDecl()) 86137269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com Ivars.push_back(Ivar); 862ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com } 86337269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com // Also look into interface's protocol list for properties declared 8641ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com // in the protocol and whose ivars are synthesized. 86576c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.com for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 86637269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com PE = OI->protocol_end(); P != PE; ++P) { 86737269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com ObjCProtocolDecl *PD = (*P); 868d4993ff3605102036f83d5834d9a022d780e5488epoger@google.com CollectProtocolSynthesizedIvars(PD, Ivars); 86976c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.com } 87037269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com} 871d4993ff3605102036f83d5834d9a022d780e5488epoger@google.com 8721ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.comunsigned ASTContext::CountProtocolSynthesizedIvars(const ObjCProtocolDecl *PD) { 8731ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com unsigned count = 0; 87476c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.com for (ObjCContainerDecl::prop_iterator I = PD->prop_begin(), 8751ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com E = PD->prop_end(); I != E; ++I) 8761ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com if ((*I)->getPropertyIvarDecl()) 8771ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com ++count; 8781ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com 87937269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com // Also look into nested protocols. 8801ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com for (ObjCProtocolDecl::protocol_iterator P = PD->protocol_begin(), 881ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com E = PD->protocol_end(); P != E; ++P) 8821ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com count += CountProtocolSynthesizedIvars(*P); 883ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com return count; 8841ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com} 8851ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com 8861ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.comunsigned ASTContext::CountSynthesizedIvars(const ObjCInterfaceDecl *OI) { 8871ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com unsigned count = 0; 8881ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com for (ObjCInterfaceDecl::prop_iterator I = OI->prop_begin(), 8891ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com E = OI->prop_end(); I != E; ++I) { 8901ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com if ((*I)->getPropertyIvarDecl()) 8911ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com ++count; 8921ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com } 8931ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com // Also look into interface's protocol list for properties declared 8941ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com // in the protocol and whose ivars are synthesized. 8951ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com for (ObjCInterfaceDecl::protocol_iterator P = OI->protocol_begin(), 8961ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com PE = OI->protocol_end(); P != PE; ++P) { 8971ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com ObjCProtocolDecl *PD = (*P); 8981ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com count += CountProtocolSynthesizedIvars(PD); 8991ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com } 9001ddfbc201a5445d2da17d2a087a1ec88cc980ffbepoger@google.com return count; 901de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com} 90237269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com 903ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com/// \brief Get the implementation of ObjCInterfaceDecl,or NULL if none exists. 90437269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.comObjCImplementationDecl *ASTContext::getObjCImplementation(ObjCInterfaceDecl *D) { 90537269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 90637269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com I = ObjCImpls.find(D); 90737269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com if (I != ObjCImpls.end()) 90837269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com return cast<ObjCImplementationDecl>(I->second); 90976c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.com return 0; 9109ef89ce8b7eb270b37941553099654129f2e0a04epoger@google.com} 911a243b22422c82def12282f2ea713121716e30621epoger@google.com/// \brief Get the implementation of ObjCCategoryDecl, or NULL if none exists. 91237269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.comObjCCategoryImplDecl *ASTContext::getObjCImplementation(ObjCCategoryDecl *D) { 91337269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com llvm::DenseMap<ObjCContainerDecl*, ObjCImplDecl*>::iterator 91437269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com I = ObjCImpls.find(D); 91537269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com if (I != ObjCImpls.end()) 91637269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com return cast<ObjCCategoryImplDecl>(I->second); 9178fc3766c58ec879389c3c83c96a73e50ff59eb78vandebo@chromium.org return 0; 918e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com} 919e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com 92037269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com/// \brief Set the implementation of ObjCInterfaceDecl. 9216f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.comvoid ASTContext::setObjCImplementation(ObjCInterfaceDecl *IFaceD, 9228fc3766c58ec879389c3c83c96a73e50ff59eb78vandebo@chromium.org ObjCImplementationDecl *ImplD) { 9230dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org assert(IFaceD && ImplD && "Passed null params"); 924659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com ObjCImpls[IFaceD] = ImplD; 925e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com} 926e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com/// \brief Set the implementation of ObjCCategoryDecl. 927e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.comvoid ASTContext::setObjCImplementation(ObjCCategoryDecl *CatD, 928e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com ObjCCategoryImplDecl *ImplD) { 929e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com assert(CatD && ImplD && "Passed null params"); 9300dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org ObjCImpls[CatD] = ImplD; 931c824c83ec1402e68e827e8920278a86793a12c0cepoger@google.com} 932c824c83ec1402e68e827e8920278a86793a12c0cepoger@google.com 933c824c83ec1402e68e827e8920278a86793a12c0cepoger@google.com/// \brief Allocate an uninitialized DeclaratorInfo. 934c824c83ec1402e68e827e8920278a86793a12c0cepoger@google.com/// 935c824c83ec1402e68e827e8920278a86793a12c0cepoger@google.com/// The caller should initialize the memory held by DeclaratorInfo using 936c824c83ec1402e68e827e8920278a86793a12c0cepoger@google.com/// the TypeLoc wrappers. 9370dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// 938e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com/// \param T the type that will be the basis for type source info. This type 939e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com/// should refer to how the declarator was written in source code, not to 94038aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org/// what type semantic analysis resolved the declarator to. 9410dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.orgDeclaratorInfo *ASTContext::CreateDeclaratorInfo(QualType T) { 9420dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org unsigned DataSize = TypeLoc::getFullDataSizeForType(T); 9430dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DeclaratorInfo *DInfo = 944e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com (DeclaratorInfo*)BumpAlloc.Allocate(sizeof(DeclaratorInfo) + DataSize, 8); 945e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com new (DInfo) DeclaratorInfo(T); 946e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com return DInfo; 947e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com} 948e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com 949e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com/// getInterfaceLayoutImpl - Get or compute information about the 950e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com/// layout of the given interface. 951e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com/// 952e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com/// \param Impl - If given, also include the layout of the interface's 953e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com/// implementation. This may differ by including synthesized ivars. 954e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.comconst ASTRecordLayout & 955e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.comASTContext::getObjCLayout(const ObjCInterfaceDecl *D, 956e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com const ObjCImplementationDecl *Impl) { 957e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com assert(!D->isForwardDecl() && "Invalid interface decl!"); 958e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com 95938aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org // Look up this layout, if already laid out, return what we have. 960defc487aa9e6bef16f76846f286f8a1343524d45epoger@google.com ObjCContainerDecl *Key = 961defc487aa9e6bef16f76846f286f8a1343524d45epoger@google.com Impl ? (ObjCContainerDecl*) Impl : (ObjCContainerDecl*) D; 962e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com if (const ASTRecordLayout *Entry = ObjCLayouts[Key]) 96338aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org return *Entry; 964e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com 965e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com // Add in synthesized ivar count if laying out an implementation. 966e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com if (Impl) { 967e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com unsigned FieldCount = D->ivar_size(); 968e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com unsigned SynthCount = CountSynthesizedIvars(D); 969e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com FieldCount += SynthCount; 970e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com // If there aren't any sythesized ivars then reuse the interface 9710dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // entry. Note we can't cache this because we simply free all 972e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com // entries later; however we shouldn't look up implementations 973de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // frequently. 9746f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com if (SynthCount == 0) 9759284ccd8bc4e3dfed83485d9fa94ebd69c4b9741epoger@google.com return getObjCLayout(D, 0); 9769875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com } 97737269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com 97837269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com const ASTRecordLayout *NewEntry = 97937269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com ASTRecordLayoutBuilder::ComputeLayout(*this, D, Impl); 980659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com ObjCLayouts[Key] = NewEntry; 981659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 98237269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com return *NewEntry; 98337269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com} 98437269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com 98537269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.comconst ASTRecordLayout & 9866f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.comASTContext::getASTObjCInterfaceLayout(const ObjCInterfaceDecl *D) { 987659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com return getObjCLayout(D, 0); 98837269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com} 98937269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com 99037269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.comconst ASTRecordLayout & 99184a1802b072d76657261eada3018955283ab29d2epoger@google.comASTContext::getASTObjCImplementationLayout(const ObjCImplementationDecl *D) { 9926f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com return getObjCLayout(D->getClassInterface(), D); 9930dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org} 9940dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 9950dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// getASTRecordLayout - Get or compute information about the layout of the 9960dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// specified record (struct/union/class), which indicates its size and field 9970dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// position information. 9980dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.orgconst ASTRecordLayout &ASTContext::getASTRecordLayout(const RecordDecl *D) { 9990dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org D = D->getDefinition(*this); 10000dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org assert(D && "Cannot get layout of forward declarations!"); 10010dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 10020dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // Look up this layout, if already laid out, return what we have. 10030dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // Note that we can't save a reference to the entry because this function 10040dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // is recursive. 10050dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org const ASTRecordLayout *Entry = ASTRecordLayouts[D]; 100637269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com if (Entry) return *Entry; 100737269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com 100820bd04e365ca8f5cdb37068fedd696e783d1a775junov@chromium.org const ASTRecordLayout *NewEntry = 100920bd04e365ca8f5cdb37068fedd696e783d1a775junov@chromium.org ASTRecordLayoutBuilder::ComputeLayout(*this, D); 1010de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com ASTRecordLayouts[D] = NewEntry; 10113cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org 1012706ff2f4f6f0a46bc50401c0fdd70eb2eaafe2f0junov@chromium.org return *NewEntry; 1013706ff2f4f6f0a46bc50401c0fdd70eb2eaafe2f0junov@chromium.org} 1014d8b279926e5d57b2377dac52c3358266733f5820skia.committer@gmail.com 10153cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org//===----------------------------------------------------------------------===// 101629b19e53cfac5af4f9bd5d361436d1097f349a34junov@chromium.org// Type creation/memoization methods 101729b19e53cfac5af4f9bd5d361436d1097f349a34junov@chromium.org//===----------------------------------------------------------------------===// 101829b19e53cfac5af4f9bd5d361436d1097f349a34junov@chromium.org 101929b19e53cfac5af4f9bd5d361436d1097f349a34junov@chromium.orgQualType ASTContext::getExtQualType(const Type *TypeNode, Qualifiers Quals) { 102029b19e53cfac5af4f9bd5d361436d1097f349a34junov@chromium.org unsigned Fast = Quals.getFastQualifiers(); 10213cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org Quals.removeFastQualifiers(); 10223cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org 10233cb834bd27a16cc60ff30adae96659558c2dc91fjunov@chromium.org // Check if we've already instantiated this type. 102420bd04e365ca8f5cdb37068fedd696e783d1a775junov@chromium.org llvm::FoldingSetNodeID ID; 102520bd04e365ca8f5cdb37068fedd696e783d1a775junov@chromium.org ExtQuals::Profile(ID, TypeNode, Quals); 102620bd04e365ca8f5cdb37068fedd696e783d1a775junov@chromium.org void *InsertPos = 0; 1027706ff2f4f6f0a46bc50401c0fdd70eb2eaafe2f0junov@chromium.org if (ExtQuals *EQ = ExtQualNodes.FindNodeOrInsertPos(ID, InsertPos)) { 1028c938c48bf426c322e2cb45b4bfaf8a2ee5a2a3c5junov@chromium.org assert(EQ->getQualifiers() == Quals); 1029aef73617d1bcede80145a13639668f958a3863d8reed@google.com QualType T = QualType(EQ, Fast); 1030de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com return T; 10319875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com } 1032de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 1033de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com ExtQuals *New = new (*this, TypeAlignment) ExtQuals(*this, TypeNode, Quals); 10349875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com ExtQualNodes.InsertNode(New, InsertPos); 1035de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com QualType T = QualType(New, Fast); 1036de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com return T; 1037672588b684d484dce6ae251e9e163e4a46924322reed@google.com} 1038c29f3d8c6dec938fd0599db30cae590fcaa2108bbungeman@google.com 1039805df1aa1ddba876e6d18f9d2207d04c09415f9dcommit-bot@chromium.orgQualType ASTContext::getVolatileType(QualType T) { 1040805df1aa1ddba876e6d18f9d2207d04c09415f9dcommit-bot@chromium.org QualType CanT = getCanonicalType(T); 1041de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com if (CanT.isVolatileQualified()) return T; 1042de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 10439875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com QualifierCollector Quals; 1044de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com const Type *TypeNode = Quals.strip(T); 104515655b241bfe1d77032e88115f119684722c10e0epoger@google.com Quals.addVolatile(); 10460dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 10470dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org return getExtQualType(TypeNode, Quals); 10480dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org} 10496f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com 1050123ac1d4eab757052407064623643fdc59f85363bsalomon@google.comQualType ASTContext::getAddrSpaceQualType(QualType T, unsigned AddressSpace) { 10516f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com QualType CanT = getCanonicalType(T); 10520dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (CanT.getAddressSpace() == AddressSpace) 1053de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com return T; 10540dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 1055de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // If we are composing extended qualifiers together, merge together 1056de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // into one ExtQuals node. 1057de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com QualifierCollector Quals; 1058de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com const Type *TypeNode = Quals.strip(T); 10590dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 10606f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com // If this type already has an address space specified, it cannot get 106137269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com // another one. 106237269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com assert(!Quals.hasAddressSpace() && 106337269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com "Type cannot be in multiple addr spaces!"); 1064de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Quals.addAddressSpace(AddressSpace); 1065de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 10660dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org return getExtQualType(TypeNode, Quals); 10670dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org} 10688fc3766c58ec879389c3c83c96a73e50ff59eb78vandebo@chromium.org 10690dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.orgQualType ASTContext::getObjCGCQualType(QualType T, 10700dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org Qualifiers::GC GCAttr) { 107138aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org QualType CanT = getCanonicalType(T); 10720dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (CanT.getObjCGCAttr() == GCAttr) 10730dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org return T; 10740dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 1075de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com if (T->isPointerType()) { 10765e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 10775e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org if (Pointee->isAnyPointerType()) { 10785e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org QualType ResultType = getObjCGCQualType(Pointee, GCAttr); 10795e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org return getPointerType(ResultType); 10805e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org } 108138aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org } 10825e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org 10835e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org // If we are composing extended qualifiers together, merge together 10848fc3766c58ec879389c3c83c96a73e50ff59eb78vandebo@chromium.org // into one ExtQuals node. 10855e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org QualifierCollector Quals; 10865e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org const Type *TypeNode = Quals.strip(T); 10875e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org 1088969967ed68762ab047645a26eab0565eb760709dvandebo@chromium.org // If this type already has an ObjCGC specified, it cannot get 10895e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org // another one. 10905e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org assert(!Quals.hasObjCGCAttr() && 10915e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org "Type cannot have multiple ObjCGCs!"); 10922b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org Quals.addObjCGCAttr(GCAttr); 10932b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org 10942b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org return getExtQualType(TypeNode, Quals); 10955e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org} 10965e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org 10975e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.orgQualType ASTContext::getNoReturnType(QualType T) { 10985e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org QualType ResultType; 10995e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org if (T->isPointerType()) { 11005e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org QualType Pointee = T->getAs<PointerType>()->getPointeeType(); 11015e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org ResultType = getNoReturnType(Pointee); 11025e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org ResultType = getPointerType(ResultType); 11035e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org } else if (T->isBlockPointerType()) { 11045e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org QualType Pointee = T->getAs<BlockPointerType>()->getPointeeType(); 11055e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org ResultType = getNoReturnType(Pointee); 11065e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org ResultType = getBlockPointerType(ResultType); 110738aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org } else { 11085e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org assert (T->isFunctionType() 11095e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org && "can't noreturn qualify non-pointer to function or block type"); 11105e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org 11115e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org if (const FunctionNoProtoType *FNPT = T->getAs<FunctionNoProtoType>()) { 11120dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org ResultType = getFunctionNoProtoType(FNPT->getResultType(), true); 11135e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org } else { 11145e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org const FunctionProtoType *F = T->getAs<FunctionProtoType>(); 11150dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org ResultType 11160dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org = getFunctionType(F->getResultType(), F->arg_type_begin(), 1117de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com F->getNumArgs(), F->isVariadic(), F->getTypeQuals(), 1118de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com F->hasExceptionSpec(), F->hasAnyExceptionSpec(), 11190dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org F->getNumExceptions(), F->exception_begin(), true); 11200dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org } 11210dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org } 11228fc3766c58ec879389c3c83c96a73e50ff59eb78vandebo@chromium.org 1123e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.com return getQualifiedType(ResultType, T.getQualifiers()); 11240dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org} 112538aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org 11260dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// getComplexType - Return the uniqued reference to the type for a complex 11270dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// number with the specified element type. 1128e33e137623d56a9d61f00ef74c6ad2e998613062epoger@google.comQualType ASTContext::getComplexType(QualType T) { 11290dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // Unique pointers, to guarantee there is only one pointer of a particular 1130de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // structure. 11310dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org llvm::FoldingSetNodeID ID; 11329875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com ComplexType::Profile(ID, T); 11339875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com 11346f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com void *InsertPos = 0; 11356f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com if (ComplexType *CT = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos)) 11366f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com return QualType(CT, 0); 1137123ac1d4eab757052407064623643fdc59f85363bsalomon@google.com 1138de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // If the pointee type isn't canonical, this won't be a canonical type either, 1139de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // so fill in the canonical type field. 1140c8263e704135436f71a585801966294d6deadeebepoger@google.com QualType Canonical; 1141de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com if (!T->isCanonical()) { 1142de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com Canonical = getComplexType(getCanonicalType(T)); 1143de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 1144123ac1d4eab757052407064623643fdc59f85363bsalomon@google.com // Get the new insert position for the node we care about. 11456f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com ComplexType *NewIP = ComplexTypes.FindNodeOrInsertPos(ID, InsertPos); 11466f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 11476f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com } 11486f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com ComplexType *New = new (*this, TypeAlignment) ComplexType(T, Canonical); 11496f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com Types.push_back(New); 11506f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com ComplexTypes.InsertNode(New, InsertPos); 11516f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com return QualType(New, 0); 11526f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com} 11536f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com 11546f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.comQualType ASTContext::getFixedWidthIntType(unsigned Width, bool Signed) { 11556f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com llvm::DenseMap<unsigned, FixedWidthIntType*> &Map = Signed ? 11566f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com SignedFixedWidthIntTypes : UnsignedFixedWidthIntTypes; 1157310478e72c63e639373465216271b81f1e4a9136epoger@google.com FixedWidthIntType *&Entry = Map[Width]; 1158310478e72c63e639373465216271b81f1e4a9136epoger@google.com if (!Entry) 11596f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com Entry = new FixedWidthIntType(Width, Signed); 1160de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com return QualType(Entry, 0); 116137269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com} 116238aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org 11634370aedf7f55af74e9ebb4ad1c2e010c08236dfajunov@google.com/// getPointerType - Return the uniqued reference to the type for a pointer to 11646f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com/// the specified type. 11654370aedf7f55af74e9ebb4ad1c2e010c08236dfajunov@google.comQualType ASTContext::getPointerType(QualType T) { 11664370aedf7f55af74e9ebb4ad1c2e010c08236dfajunov@google.com // Unique pointers, to guarantee there is only one pointer of a particular 1167caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com // structure. 1168caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com llvm::FoldingSetNodeID ID; 116938aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org PointerType::Profile(ID, T); 1170659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 11716f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com void *InsertPos = 0; 1172de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com if (PointerType *PT = PointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1173c8263e704135436f71a585801966294d6deadeebepoger@google.com return QualType(PT, 0); 1174c8263e704135436f71a585801966294d6deadeebepoger@google.com 1175c8263e704135436f71a585801966294d6deadeebepoger@google.com // If the pointee type isn't canonical, this won't be a canonical type either, 1176805df1aa1ddba876e6d18f9d2207d04c09415f9dcommit-bot@chromium.org // so fill in the canonical type field. 1177805df1aa1ddba876e6d18f9d2207d04c09415f9dcommit-bot@chromium.org QualType Canonical; 1178805df1aa1ddba876e6d18f9d2207d04c09415f9dcommit-bot@chromium.org if (!T->isCanonical()) { 1179659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com Canonical = getPointerType(getCanonicalType(T)); 1180c8263e704135436f71a585801966294d6deadeebepoger@google.com 1181c8263e704135436f71a585801966294d6deadeebepoger@google.com // Get the new insert position for the node we care about. 1182c8263e704135436f71a585801966294d6deadeebepoger@google.com PointerType *NewIP = PointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1183c8263e704135436f71a585801966294d6deadeebepoger@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1184c8263e704135436f71a585801966294d6deadeebepoger@google.com } 1185c8263e704135436f71a585801966294d6deadeebepoger@google.com PointerType *New = new (*this, TypeAlignment) PointerType(T, Canonical); 1186c8263e704135436f71a585801966294d6deadeebepoger@google.com Types.push_back(New); 1187c8263e704135436f71a585801966294d6deadeebepoger@google.com PointerTypes.InsertNode(New, InsertPos); 118874b7ffda687c66d46ac3cfa4f2baedd4c62e3fbescroggo@google.com return QualType(New, 0); 118974b7ffda687c66d46ac3cfa4f2baedd4c62e3fbescroggo@google.com} 119074b7ffda687c66d46ac3cfa4f2baedd4c62e3fbescroggo@google.com 1191c8263e704135436f71a585801966294d6deadeebepoger@google.com/// getBlockPointerType - Return the uniqued reference to the type for 1192c8263e704135436f71a585801966294d6deadeebepoger@google.com/// a pointer to the specified block. 1193aef2d3b14eab4f86e7d0efef952e64b3546630acscroggo@google.comQualType ASTContext::getBlockPointerType(QualType T) { 1194aef2d3b14eab4f86e7d0efef952e64b3546630acscroggo@google.com assert(T->isFunctionType() && "block of function types only"); 1195c8263e704135436f71a585801966294d6deadeebepoger@google.com // Unique pointers, to guarantee there is only one block of a particular 1196c8263e704135436f71a585801966294d6deadeebepoger@google.com // structure. 1197c8263e704135436f71a585801966294d6deadeebepoger@google.com llvm::FoldingSetNodeID ID; 1198c8263e704135436f71a585801966294d6deadeebepoger@google.com BlockPointerType::Profile(ID, T); 1199c8263e704135436f71a585801966294d6deadeebepoger@google.com 1200c8263e704135436f71a585801966294d6deadeebepoger@google.com void *InsertPos = 0; 120138aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org if (BlockPointerType *PT = 1202659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1203c8263e704135436f71a585801966294d6deadeebepoger@google.com return QualType(PT, 0); 1204c8263e704135436f71a585801966294d6deadeebepoger@google.com 1205c8263e704135436f71a585801966294d6deadeebepoger@google.com // If the block pointee type isn't canonical, this won't be a canonical 1206de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com // type either so fill in the canonical type field. 1207565254bc9343d0befdfbbb97a3dc6d44c6e18658scroggo@google.com QualType Canonical; 1208de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com if (!T->isCanonical()) { 1209565254bc9343d0befdfbbb97a3dc6d44c6e18658scroggo@google.com Canonical = getBlockPointerType(getCanonicalType(T)); 12105af9b2032b552516c9223d9fb22185b022b13c62scroggo@google.com 12116f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com // Get the new insert position for the node we care about. 12126f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com BlockPointerType *NewIP = 121338aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org BlockPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 1214659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 12156f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com } 1216de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com BlockPointerType *New 1217c8263e704135436f71a585801966294d6deadeebepoger@google.com = new (*this, TypeAlignment) BlockPointerType(T, Canonical); 1218c8263e704135436f71a585801966294d6deadeebepoger@google.com Types.push_back(New); 1219c8263e704135436f71a585801966294d6deadeebepoger@google.com BlockPointerTypes.InsertNode(New, InsertPos); 1220c8263e704135436f71a585801966294d6deadeebepoger@google.com return QualType(New, 0); 1221c8263e704135436f71a585801966294d6deadeebepoger@google.com} 1222659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 1223c8263e704135436f71a585801966294d6deadeebepoger@google.com/// getLValueReferenceType - Return the uniqued reference to the type for an 1224c8263e704135436f71a585801966294d6deadeebepoger@google.com/// lvalue reference to the specified type. 1225c8263e704135436f71a585801966294d6deadeebepoger@google.comQualType ASTContext::getLValueReferenceType(QualType T) { 1226c8263e704135436f71a585801966294d6deadeebepoger@google.com // Unique pointers, to guarantee there is only one pointer of a particular 1227c8263e704135436f71a585801966294d6deadeebepoger@google.com // structure. 1228c8263e704135436f71a585801966294d6deadeebepoger@google.com llvm::FoldingSetNodeID ID; 1229c8263e704135436f71a585801966294d6deadeebepoger@google.com ReferenceType::Profile(ID, T); 1230c8263e704135436f71a585801966294d6deadeebepoger@google.com 123174b7ffda687c66d46ac3cfa4f2baedd4c62e3fbescroggo@google.com void *InsertPos = 0; 1232c8263e704135436f71a585801966294d6deadeebepoger@google.com if (LValueReferenceType *RT = 1233c8263e704135436f71a585801966294d6deadeebepoger@google.com LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 1234aef2d3b14eab4f86e7d0efef952e64b3546630acscroggo@google.com return QualType(RT, 0); 1235aef2d3b14eab4f86e7d0efef952e64b3546630acscroggo@google.com 1236c8263e704135436f71a585801966294d6deadeebepoger@google.com // If the referencee type isn't canonical, this won't be a canonical type 1237c8263e704135436f71a585801966294d6deadeebepoger@google.com // either, so fill in the canonical type field. 1238c8263e704135436f71a585801966294d6deadeebepoger@google.com QualType Canonical; 123938aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org if (!T->isCanonical()) { 1240c8263e704135436f71a585801966294d6deadeebepoger@google.com Canonical = getLValueReferenceType(getCanonicalType(T)); 1241c8263e704135436f71a585801966294d6deadeebepoger@google.com 1242c8263e704135436f71a585801966294d6deadeebepoger@google.com // Get the new insert position for the node we care about. 1243c8263e704135436f71a585801966294d6deadeebepoger@google.com LValueReferenceType *NewIP = 1244c8263e704135436f71a585801966294d6deadeebepoger@google.com LValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1245de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1246565254bc9343d0befdfbbb97a3dc6d44c6e18658scroggo@google.com } 1247de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 1248565254bc9343d0befdfbbb97a3dc6d44c6e18658scroggo@google.com LValueReferenceType *New 1249e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com = new (*this, TypeAlignment) LValueReferenceType(T, Canonical); 1250e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com Types.push_back(New); 1251e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com LValueReferenceTypes.InsertNode(New, InsertPos); 1252e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com return QualType(New, 0); 1253e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com} 1254e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com 12556f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com/// getRValueReferenceType - Return the uniqued reference to the type for an 12565079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com/// rvalue reference to the specified type. 12573e62ebf93b43139202ce803245411467c7ed13ffcommit-bot@chromium.orgQualType ASTContext::getRValueReferenceType(QualType T) { 1258e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com // Unique pointers, to guarantee there is only one pointer of a particular 125995146ebc43175ae0c1cd3a116509d92aa1a445abjunov@chromium.org // structure. 12605f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com llvm::FoldingSetNodeID ID; 126195146ebc43175ae0c1cd3a116509d92aa1a445abjunov@chromium.org ReferenceType::Profile(ID, T); 1262310478e72c63e639373465216271b81f1e4a9136epoger@google.com 1263310478e72c63e639373465216271b81f1e4a9136epoger@google.com void *InsertPos = 0; 126485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (RValueReferenceType *RT = 1265310478e72c63e639373465216271b81f1e4a9136epoger@google.com RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos)) 1266310478e72c63e639373465216271b81f1e4a9136epoger@google.com return QualType(RT, 0); 126757f7abc8659f17e58fc2d1410117033ad524f9d3epoger@google.com 1268908f5836626d792c5e33ad93f44c6a418a0cc8f5epoger@google.com // If the referencee type isn't canonical, this won't be a canonical type 126937269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com // either, so fill in the canonical type field. 127037269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com QualType Canonical; 127137269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com if (!T->isCanonical()) { 127237269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com Canonical = getRValueReferenceType(getCanonicalType(T)); 1273ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com 1274ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com // Get the new insert position for the node we care about. 1275ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com RValueReferenceType *NewIP = 12769c56a8dea6587242671fb36db3940277db6018dbepoger@google.com RValueReferenceTypes.FindNodeOrInsertPos(ID, InsertPos); 1277ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1278ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com } 1279de96163a80167636d95837f9ee6a2e98baf9d350epoger@google.com 128072c9672ce274a3b6cb40800d66374edf25b157a3scroggo@google.com RValueReferenceType *New 1281cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com = new (*this, TypeAlignment) RValueReferenceType(T, Canonical); 1282cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com Types.push_back(New); 1283cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com RValueReferenceTypes.InsertNode(New, InsertPos); 1284cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com return QualType(New, 0); 1285cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com} 12867361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com 12879875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com/// getMemberPointerType - Return the uniqued reference to the type for a 12884c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com/// member pointer to the specified type, in the specified class. 128969dc4ffa6f461d85b6323d3ec4ef574ff5ff1f59reed@google.comQualType ASTContext::getMemberPointerType(QualType T, const Type *Cls) { 12904c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com // Unique pointers, to guarantee there is only one pointer of a particular 1291a73e860923885ae05ae794b40e7e3fe0b1bd8478robertphillips@google.com // structure. 12924c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com llvm::FoldingSetNodeID ID; 12934c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com MemberPointerType::Profile(ID, T, Cls); 12944c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com 12957bb28a1679d5d0c07e4cdf983316417cffdc4197robertphillips@google.com void *InsertPos = 0; 12964c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com if (MemberPointerType *PT = 1297440ddf433b176aca51a2e1335d9f00039a947a0bcommit-bot@chromium.org MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1298440ddf433b176aca51a2e1335d9f00039a947a0bcommit-bot@chromium.org return QualType(PT, 0); 1299c824c83ec1402e68e827e8920278a86793a12c0cepoger@google.com 1300c824c83ec1402e68e827e8920278a86793a12c0cepoger@google.com // If the pointee or class type isn't canonical, this won't be a canonical 1301515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org // type either, so fill in the canonical type field. 1302d6543e5edae5d2fe9f364a563f41c1654b14e5f4robertphillips@google.com QualType Canonical; 1303d6543e5edae5d2fe9f364a563f41c1654b14e5f4robertphillips@google.com if (!T->isCanonical()) { 1304d6543e5edae5d2fe9f364a563f41c1654b14e5f4robertphillips@google.com Canonical = getMemberPointerType(getCanonicalType(T),getCanonicalType(Cls)); 1305d6543e5edae5d2fe9f364a563f41c1654b14e5f4robertphillips@google.com 1306515dcd36032997ce335daa0163c6d67e851bcad1commit-bot@chromium.org // Get the new insert position for the node we care about. 1307cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com MemberPointerType *NewIP = 13084c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com MemberPointerTypes.FindNodeOrInsertPos(ID, InsertPos); 13094c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1310cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com } 1311cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com MemberPointerType *New 13124c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com = new (*this, TypeAlignment) MemberPointerType(T, Cls, Canonical); 1313cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com Types.push_back(New); 13144c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com MemberPointerTypes.InsertNode(New, InsertPos); 1315b29c883fb46ac6099440d82ac57b86d25386daedbungeman@google.com return QualType(New, 0); 13167361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com} 13174c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com 1318a73e860923885ae05ae794b40e7e3fe0b1bd8478robertphillips@google.com/// getConstantArrayType - Return the unique reference to the type for an 13197361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com/// array of the specified element type. 13200dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.orgQualType ASTContext::getConstantArrayType(QualType EltTy, 1321cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com const llvm::APInt &ArySizeIn, 132200dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com ArrayType::ArraySizeModifier ASM, 132300dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com unsigned EltTypeQuals) { 13240dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org assert((EltTy->isDependentType() || EltTy->isConstantSizeType()) && 13250dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org "Constant array of VLAs is illegal!"); 13260dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 13270dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // Convert the array size into a canonical width matching the pointer size for 13280dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // the target. 13290dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org llvm::APInt ArySize(ArySizeIn); 13300dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org ArySize.zextOrTrunc(Target.getPointerWidth(EltTy.getAddressSpace())); 1331ffd178c84d85a12016d844d1b9b3fe2172e32a74commit-bot@chromium.org 1332ffd178c84d85a12016d844d1b9b3fe2172e32a74commit-bot@chromium.org llvm::FoldingSetNodeID ID; 1333ffd178c84d85a12016d844d1b9b3fe2172e32a74commit-bot@chromium.org ConstantArrayType::Profile(ID, EltTy, ArySize, ASM, EltTypeQuals); 13340dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 13350dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org void *InsertPos = 0; 1336dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com if (ConstantArrayType *ATP = 1337dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 1338dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com return QualType(ATP, 0); 133909fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com 13400f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com // If the element type isn't canonical, this won't be a canonical type either, 13410f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com // so fill in the canonical type field. 13425867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com QualType Canonical; 1343dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com if (!EltTy->isCanonical()) { 13445867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com Canonical = getConstantArrayType(getCanonicalType(EltTy), ArySize, 13450f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com ASM, EltTypeQuals); 13465867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com // Get the new insert position for the node we care about. 134709fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com ConstantArrayType *NewIP = 13485867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com ConstantArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 13490f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 13500f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com } 1351dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com 1352dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com ConstantArrayType *New = new(*this,TypeAlignment) 1353dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com ConstantArrayType(EltTy, Canonical, ArySize, ASM, EltTypeQuals); 13540f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com ConstantArrayTypes.InsertNode(New, InsertPos); 13550f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com Types.push_back(New); 13560f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com return QualType(New, 0); 13570f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com} 13580f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com 1359dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com/// getVariableArrayType - Returns a non-unique reference to the type for a 1360dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com/// variable array of the specified element type. 1361dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.comQualType ASTContext::getVariableArrayType(QualType EltTy, 1362dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com Expr *NumElts, 1363dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com ArrayType::ArraySizeModifier ASM, 1364dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com unsigned EltTypeQuals, 1365dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com SourceRange Brackets) { 1366dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com // Since we don't unique expressions, it isn't possible to unique VLA's 1367dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com // that have an expression provided for their size. 1368dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com 1369dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com VariableArrayType *New = new(*this, TypeAlignment) 13700f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com VariableArrayType(EltTy, QualType(), NumElts, ASM, EltTypeQuals, Brackets); 13710f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com 1372dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com VariableArrayTypes.push_back(New); 1373dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com Types.push_back(New); 1374dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com return QualType(New, 0); 1375dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com} 1376dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com 1377dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com/// getDependentSizedArrayType - Returns a non-unique reference to 1378dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com/// the type for a dependently-sized array of the specified element 1379dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com/// type. 1380dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.comQualType ASTContext::getDependentSizedArrayType(QualType EltTy, 1381dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com Expr *NumElts, 1382dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com ArrayType::ArraySizeModifier ASM, 1383dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com unsigned EltTypeQuals, 138409fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com SourceRange Brackets) { 138509fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com assert((NumElts->isTypeDependent() || NumElts->isValueDependent()) && 138609fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com "Size must be type- or value-dependent!"); 13870dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 13880dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org llvm::FoldingSetNodeID ID; 13890dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentSizedArrayType::Profile(ID, *this, getCanonicalType(EltTy), ASM, 13900dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org EltTypeQuals, NumElts); 13910dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 13920dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org void *InsertPos = 0; 13930dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentSizedArrayType *Canon 13940dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org = DependentSizedArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 13950dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentSizedArrayType *New; 13960dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (Canon) { 13970dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // We already have a canonical version of this array type; use it as 13980dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // the canonical type for a newly-built type. 13990dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org New = new (*this, TypeAlignment) 14000dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentSizedArrayType(*this, EltTy, QualType(Canon, 0), 14010dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org NumElts, ASM, EltTypeQuals, Brackets); 14020dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org } else { 14030dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org QualType CanonEltTy = getCanonicalType(EltTy); 14040dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (CanonEltTy == EltTy) { 14050dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org New = new (*this, TypeAlignment) 14060dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentSizedArrayType(*this, EltTy, QualType(), 14070dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org NumElts, ASM, EltTypeQuals, Brackets); 14080dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentSizedArrayTypes.InsertNode(New, InsertPos); 14090dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org } else { 14100dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org QualType Canon = getDependentSizedArrayType(CanonEltTy, NumElts, 14110dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org ASM, EltTypeQuals, 14120dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org SourceRange()); 14136f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com New = new (*this, TypeAlignment) 14146f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com DependentSizedArrayType(*this, EltTy, Canon, 14156f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com NumElts, ASM, EltTypeQuals, Brackets); 14166f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com } 14176f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com } 14186f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com 14197d519305bb52eadf6b8265c6720642193791a364scroggo@google.com Types.push_back(New); 14200f567c6cb6944d0fc1ce18214c3459ba6b23fdf0scroggo@google.com return QualType(New, 0); 1421f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org} 14225e49738c99f573b2e5ba342f6ec8bfa3bcf125e4epoger@google.com 142309fd4d216963c498c24ba355accce9337a5029a8scroggo@google.comQualType ASTContext::getIncompleteArrayType(QualType EltTy, 142409fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com ArrayType::ArraySizeModifier ASM, 14250b735631b7d22316693629a4110c7e95b2a7633escroggo@google.com unsigned EltTypeQuals) { 142609fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com llvm::FoldingSetNodeID ID; 14276f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com IncompleteArrayType::Profile(ID, EltTy, ASM, EltTypeQuals); 14286f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com 14290b735631b7d22316693629a4110c7e95b2a7633escroggo@google.com void *InsertPos = 0; 143009fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com if (IncompleteArrayType *ATP = 143109fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos)) 14325079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com return QualType(ATP, 0); 14335079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com 14345079d2c2a0dc0deacecccc6ef9d1c45c6c7982e4epoger@google.com // If the element type isn't canonical, this won't be a canonical type 1435f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com // either, so fill in the canonical type field. 1436f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com QualType Canonical; 1437f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com 14386dda827913a3dbdb84934f4f1d79c0b702169e5ccommit-bot@chromium.org if (!EltTy->isCanonical()) { 1439512c9b65fc9fd6d298892719aeda2a8bcd377ac5caryclark@google.com Canonical = getIncompleteArrayType(getCanonicalType(EltTy), 1440512c9b65fc9fd6d298892719aeda2a8bcd377ac5caryclark@google.com ASM, EltTypeQuals); 1441512c9b65fc9fd6d298892719aeda2a8bcd377ac5caryclark@google.com 1442512c9b65fc9fd6d298892719aeda2a8bcd377ac5caryclark@google.com // Get the new insert position for the node we care about. 1443512c9b65fc9fd6d298892719aeda2a8bcd377ac5caryclark@google.com IncompleteArrayType *NewIP = 1444512c9b65fc9fd6d298892719aeda2a8bcd377ac5caryclark@google.com IncompleteArrayTypes.FindNodeOrInsertPos(ID, InsertPos); 1445512c9b65fc9fd6d298892719aeda2a8bcd377ac5caryclark@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1446512c9b65fc9fd6d298892719aeda2a8bcd377ac5caryclark@google.com } 14475f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com 14485f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com IncompleteArrayType *New = new (*this, TypeAlignment) 144909fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com IncompleteArrayType(EltTy, Canonical, ASM, EltTypeQuals); 145009fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com 145109fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com IncompleteArrayTypes.InsertNode(New, InsertPos); 145209fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com Types.push_back(New); 14535e49738c99f573b2e5ba342f6ec8bfa3bcf125e4epoger@google.com return QualType(New, 0); 145409fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com} 145509fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com 14565e49738c99f573b2e5ba342f6ec8bfa3bcf125e4epoger@google.com/// getVectorType - Return the unique reference to a vector type of 1457ac8f3a4f133d059c74ea20c106b963235ee6e48edjsollen@google.com/// the specified element type and size. VectorType must be a built-in type. 1458ac8f3a4f133d059c74ea20c106b963235ee6e48edjsollen@google.comQualType ASTContext::getVectorType(QualType vecType, unsigned NumElts) { 1459ac8f3a4f133d059c74ea20c106b963235ee6e48edjsollen@google.com BuiltinType *baseType; 1460725a64cf89605680ebb0f56cd6727f29d8b9899btfarina@chromium.org 14615e49738c99f573b2e5ba342f6ec8bfa3bcf125e4epoger@google.com baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 14625e49738c99f573b2e5ba342f6ec8bfa3bcf125e4epoger@google.com assert(baseType != 0 && "getVectorType(): Expecting a built-in type"); 1463caac3db48f74676889006b5520b766b572b5e9b2epoger@google.com 146409fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com // Check if we've already instantiated a vector of this type. 14655e49738c99f573b2e5ba342f6ec8bfa3bcf125e4epoger@google.com llvm::FoldingSetNodeID ID; 146609fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com VectorType::Profile(ID, vecType, NumElts, Type::Vector); 146709fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com void *InsertPos = 0; 1468b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 1469b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com return QualType(VTP, 0); 14706f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com 14716f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com // If the element type isn't canonical, this won't be a canonical type either, 14726f7f14d061b045a58a888ee5450b4596797dc453epoger@google.com // so fill in the canonical type field. 147309fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com QualType Canonical; 1474604e0c249ef0e11a1b8bc41195081363fd86d892scroggo@google.com if (!vecType->isCanonical()) { 1475d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com Canonical = getVectorType(getCanonicalType(vecType), NumElts); 1476d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com 1477d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com // Get the new insert position for the node we care about. 1478f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1479f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1480f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org } 1481f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org VectorType *New = new (*this, TypeAlignment) 1482f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org VectorType(vecType, NumElts, Canonical); 1483f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org VectorTypes.InsertNode(New, InsertPos); 1484f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org Types.push_back(New); 14855e00989a283111cef05bed8102e45c16651e43e4commit-bot@chromium.org return QualType(New, 0); 148673a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com} 148773a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com 148873a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com/// getExtVectorType - Return the unique reference to an extended vector type of 148973a7ea3ae0d37ee28f90d6b38c49fda052638253edisonn@google.com/// the specified element type and size. VectorType must be a built-in type. 1490672588b684d484dce6ae251e9e163e4a46924322reed@google.comQualType ASTContext::getExtVectorType(QualType vecType, unsigned NumElts) { 1491d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com BuiltinType *baseType; 1492608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org 1493608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org baseType = dyn_cast<BuiltinType>(getCanonicalType(vecType).getTypePtr()); 1494d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com assert(baseType != 0 && "getExtVectorType(): Expecting a built-in type"); 1495608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org 1496d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com // Check if we've already instantiated a vector of this type. 1497d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com llvm::FoldingSetNodeID ID; 1498d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com VectorType::Profile(ID, vecType, NumElts, Type::ExtVector); 1499d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com void *InsertPos = 0; 1500d5f032d46baa42f836d06d7372fba8f022a20dfacommit-bot@chromium.org if (VectorType *VTP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos)) 1501608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org return QualType(VTP, 0); 1502d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com 1503d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com // If the element type isn't canonical, this won't be a canonical type either, 1504608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org // so fill in the canonical type field. 1505608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org QualType Canonical; 1506608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org if (!vecType->isCanonical()) { 1507608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org Canonical = getExtVectorType(getCanonicalType(vecType), NumElts); 1508608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org 1509608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org // Get the new insert position for the node we care about. 1510608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org VectorType *NewIP = VectorTypes.FindNodeOrInsertPos(ID, InsertPos); 1511608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1512608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org } 1513608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org ExtVectorType *New = new (*this, TypeAlignment) 1514608ea6508ae2e9ea05ea863ba50fc27d44d2eae9commit-bot@chromium.org ExtVectorType(vecType, NumElts, Canonical); 1515d9dfa18372119c8e1318125d2075fa80e0819094edisonn@google.com VectorTypes.InsertNode(New, InsertPos); 15167d519305bb52eadf6b8265c6720642193791a364scroggo@google.com Types.push_back(New); 15175867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com return QualType(New, 0); 15185867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com} 15195867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com 152009fd4d216963c498c24ba355accce9337a5029a8scroggo@google.comQualType ASTContext::getDependentSizedExtVectorType(QualType vecType, 15215867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com Expr *SizeExpr, 15225867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com SourceLocation AttrLoc) { 15235867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com llvm::FoldingSetNodeID ID; 15245867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com DependentSizedExtVectorType::Profile(ID, *this, getCanonicalType(vecType), 15255867c0f03262a3ce11c6790d5bd75ce0ebcb197cscroggo@google.com SizeExpr); 15260dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 15270dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org void *InsertPos = 0; 15280dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentSizedExtVectorType *Canon 15290dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org = DependentSizedExtVectorTypes.FindNodeOrInsertPos(ID, InsertPos); 15300dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentSizedExtVectorType *New; 15310dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (Canon) { 15320dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // We already have a canonical version of this array type; use it as 15330dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // the canonical type for a newly-built type. 15340dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org New = new (*this, TypeAlignment) 1535fb2cd425c2271c3d42c9667753b33ae71f05ef1breed@google.com DependentSizedExtVectorType(*this, vecType, QualType(Canon, 0), 1536fb2cd425c2271c3d42c9667753b33ae71f05ef1breed@google.com SizeExpr, AttrLoc); 1537fb2cd425c2271c3d42c9667753b33ae71f05ef1breed@google.com } else { 1538fb2cd425c2271c3d42c9667753b33ae71f05ef1breed@google.com QualType CanonVecTy = getCanonicalType(vecType); 1539fb2cd425c2271c3d42c9667753b33ae71f05ef1breed@google.com if (CanonVecTy == vecType) { 1540fb2cd425c2271c3d42c9667753b33ae71f05ef1breed@google.com New = new (*this, TypeAlignment) 1541fb2cd425c2271c3d42c9667753b33ae71f05ef1breed@google.com DependentSizedExtVectorType(*this, vecType, QualType(), SizeExpr, 154280724dfeb320d1152128cd33636c9024952432d3epoger@google.com AttrLoc); 154380724dfeb320d1152128cd33636c9024952432d3epoger@google.com DependentSizedExtVectorTypes.InsertNode(New, InsertPos); 154480724dfeb320d1152128cd33636c9024952432d3epoger@google.com } else { 154580724dfeb320d1152128cd33636c9024952432d3epoger@google.com QualType Canon = getDependentSizedExtVectorType(CanonVecTy, SizeExpr, 154680724dfeb320d1152128cd33636c9024952432d3epoger@google.com SourceLocation()); 154780724dfeb320d1152128cd33636c9024952432d3epoger@google.com New = new (*this, TypeAlignment) 154880724dfeb320d1152128cd33636c9024952432d3epoger@google.com DependentSizedExtVectorType(*this, vecType, Canon, SizeExpr, AttrLoc); 15496f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com } 15506f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com } 15516f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com 15526f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com Types.push_back(New); 15536f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com return QualType(New, 0); 15546f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com} 15556f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com 155680724dfeb320d1152128cd33636c9024952432d3epoger@google.com/// getFunctionNoProtoType - Return a K&R style C function type like 'int()'. 155738aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org/// 1558659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.comQualType ASTContext::getFunctionNoProtoType(QualType ResultTy, bool NoReturn) { 1559c8263e704135436f71a585801966294d6deadeebepoger@google.com // Unique functions, to guarantee there is only one function of a particular 1560c8263e704135436f71a585801966294d6deadeebepoger@google.com // structure. 1561c8263e704135436f71a585801966294d6deadeebepoger@google.com llvm::FoldingSetNodeID ID; 1562c8263e704135436f71a585801966294d6deadeebepoger@google.com FunctionNoProtoType::Profile(ID, ResultTy, NoReturn); 1563c8263e704135436f71a585801966294d6deadeebepoger@google.com 1564c8263e704135436f71a585801966294d6deadeebepoger@google.com void *InsertPos = 0; 1565659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com if (FunctionNoProtoType *FT = 1566659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 1567c8263e704135436f71a585801966294d6deadeebepoger@google.com return QualType(FT, 0); 1568c8263e704135436f71a585801966294d6deadeebepoger@google.com 156980724dfeb320d1152128cd33636c9024952432d3epoger@google.com QualType Canonical; 157080724dfeb320d1152128cd33636c9024952432d3epoger@google.com if (!ResultTy->isCanonical()) { 1571c8263e704135436f71a585801966294d6deadeebepoger@google.com Canonical = getFunctionNoProtoType(getCanonicalType(ResultTy), NoReturn); 157238aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org 1573659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // Get the new insert position for the node we care about. 157480724dfeb320d1152128cd33636c9024952432d3epoger@google.com FunctionNoProtoType *NewIP = 1575c8263e704135436f71a585801966294d6deadeebepoger@google.com FunctionNoProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 157680724dfeb320d1152128cd33636c9024952432d3epoger@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 1577c8263e704135436f71a585801966294d6deadeebepoger@google.com } 1578c8263e704135436f71a585801966294d6deadeebepoger@google.com 1579c8263e704135436f71a585801966294d6deadeebepoger@google.com FunctionNoProtoType *New = new (*this, TypeAlignment) 1580659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com FunctionNoProtoType(ResultTy, Canonical, NoReturn); 1581659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com Types.push_back(New); 1582c8263e704135436f71a585801966294d6deadeebepoger@google.com FunctionNoProtoTypes.InsertNode(New, InsertPos); 1583c8263e704135436f71a585801966294d6deadeebepoger@google.com return QualType(New, 0); 158480724dfeb320d1152128cd33636c9024952432d3epoger@google.com} 158580724dfeb320d1152128cd33636c9024952432d3epoger@google.com 158680724dfeb320d1152128cd33636c9024952432d3epoger@google.com/// getFunctionType - Return a normal function type with a typed argument 158780724dfeb320d1152128cd33636c9024952432d3epoger@google.com/// list. isVariadic indicates whether the argument list includes '...'. 1588c8263e704135436f71a585801966294d6deadeebepoger@google.comQualType ASTContext::getFunctionType(QualType ResultTy,const QualType *ArgArray, 158938aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org unsigned NumArgs, bool isVariadic, 1590659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com unsigned TypeQuals, bool hasExceptionSpec, 159180724dfeb320d1152128cd33636c9024952432d3epoger@google.com bool hasAnyExceptionSpec, unsigned NumExs, 159280724dfeb320d1152128cd33636c9024952432d3epoger@google.com const QualType *ExArray, bool NoReturn) { 159380724dfeb320d1152128cd33636c9024952432d3epoger@google.com if (LangOpts.CPlusPlus) { 1594c8263e704135436f71a585801966294d6deadeebepoger@google.com for (unsigned i = 0; i != NumArgs; ++i) 1595c8263e704135436f71a585801966294d6deadeebepoger@google.com assert(!ArgArray[i].hasQualifiers() && 1596c8263e704135436f71a585801966294d6deadeebepoger@google.com "C++ arguments can't have toplevel qualifiers!"); 1597659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com } 1598659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 1599659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // Unique functions, to guarantee there is only one function of a particular 1600659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // structure. 1601659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com llvm::FoldingSetNodeID ID; 1602659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com FunctionProtoType::Profile(ID, ResultTy, ArgArray, NumArgs, isVariadic, 1603659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 160438aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org NumExs, ExArray, NoReturn); 1605659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com 1606c8263e704135436f71a585801966294d6deadeebepoger@google.com void *InsertPos = 0; 1607c8263e704135436f71a585801966294d6deadeebepoger@google.com if (FunctionProtoType *FTP = 160880724dfeb320d1152128cd33636c9024952432d3epoger@google.com FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos)) 160980724dfeb320d1152128cd33636c9024952432d3epoger@google.com return QualType(FTP, 0); 1610c8263e704135436f71a585801966294d6deadeebepoger@google.com 1611c8263e704135436f71a585801966294d6deadeebepoger@google.com // Determine whether the type being created is already canonical or not. 1612d4d44f08d73933dd64fffa75042aa19d45b772casenorblanco@chromium.org bool isCanonical = ResultTy->isCanonical(); 1613d4d44f08d73933dd64fffa75042aa19d45b772casenorblanco@chromium.org if (hasExceptionSpec) 1614659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com isCanonical = false; 1615659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com for (unsigned i = 0; i != NumArgs && isCanonical; ++i) 1616c8263e704135436f71a585801966294d6deadeebepoger@google.com if (!ArgArray[i]->isCanonical()) 1617c8263e704135436f71a585801966294d6deadeebepoger@google.com isCanonical = false; 161880724dfeb320d1152128cd33636c9024952432d3epoger@google.com 1619af94d9a82e1b960c0aac7ff95ce366b4d914cd88commit-bot@chromium.org // If this type isn't canonical, get the canonical version of it. 162080724dfeb320d1152128cd33636c9024952432d3epoger@google.com // The exception spec is not part of the canonical type. 162180724dfeb320d1152128cd33636c9024952432d3epoger@google.com QualType Canonical; 1622c8263e704135436f71a585801966294d6deadeebepoger@google.com if (!isCanonical) { 16236f6568b27eae62fea23ab8192c6da02ab892bb5eepoger@google.com llvm::SmallVector<QualType, 16> CanonicalArgs; 162438aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org CanonicalArgs.reserve(NumArgs); 1625659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com for (unsigned i = 0; i != NumArgs; ++i) 162680724dfeb320d1152128cd33636c9024952432d3epoger@google.com CanonicalArgs.push_back(getCanonicalType(ArgArray[i])); 162780724dfeb320d1152128cd33636c9024952432d3epoger@google.com 162880724dfeb320d1152128cd33636c9024952432d3epoger@google.com Canonical = getFunctionType(getCanonicalType(ResultTy), 1629c8263e704135436f71a585801966294d6deadeebepoger@google.com CanonicalArgs.data(), NumArgs, 1630c8263e704135436f71a585801966294d6deadeebepoger@google.com isVariadic, TypeQuals, false, 1631c8263e704135436f71a585801966294d6deadeebepoger@google.com false, 0, 0, NoReturn); 1632c8263e704135436f71a585801966294d6deadeebepoger@google.com 1633c8263e704135436f71a585801966294d6deadeebepoger@google.com // Get the new insert position for the node we care about. 1634c8263e704135436f71a585801966294d6deadeebepoger@google.com FunctionProtoType *NewIP = 1635c8263e704135436f71a585801966294d6deadeebepoger@google.com FunctionProtoTypes.FindNodeOrInsertPos(ID, InsertPos); 1636c8263e704135436f71a585801966294d6deadeebepoger@google.com assert(NewIP == 0 && "Shouldn't be in the map!"); NewIP = NewIP; 163780724dfeb320d1152128cd33636c9024952432d3epoger@google.com } 1638c8263e704135436f71a585801966294d6deadeebepoger@google.com 1639d4d44f08d73933dd64fffa75042aa19d45b772casenorblanco@chromium.org // FunctionProtoType objects are allocated with extra bytes after them 1640c8263e704135436f71a585801966294d6deadeebepoger@google.com // for two variable size arrays (for parameter and exception types) at the 1641659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com // end of them. 1642c8263e704135436f71a585801966294d6deadeebepoger@google.com FunctionProtoType *FTP = 1643c8263e704135436f71a585801966294d6deadeebepoger@google.com (FunctionProtoType*)Allocate(sizeof(FunctionProtoType) + 1644c8263e704135436f71a585801966294d6deadeebepoger@google.com NumArgs*sizeof(QualType) + 1645c8263e704135436f71a585801966294d6deadeebepoger@google.com NumExs*sizeof(QualType), TypeAlignment); 1646c8263e704135436f71a585801966294d6deadeebepoger@google.com new (FTP) FunctionProtoType(ResultTy, ArgArray, NumArgs, isVariadic, 1647c8263e704135436f71a585801966294d6deadeebepoger@google.com TypeQuals, hasExceptionSpec, hasAnyExceptionSpec, 1648c8263e704135436f71a585801966294d6deadeebepoger@google.com ExArray, NumExs, Canonical, NoReturn); 1649c8263e704135436f71a585801966294d6deadeebepoger@google.com Types.push_back(FTP); 1650c8263e704135436f71a585801966294d6deadeebepoger@google.com FunctionProtoTypes.InsertNode(FTP, InsertPos); 1651c8263e704135436f71a585801966294d6deadeebepoger@google.com return QualType(FTP, 0); 1652c8263e704135436f71a585801966294d6deadeebepoger@google.com} 1653c8263e704135436f71a585801966294d6deadeebepoger@google.com 1654c8263e704135436f71a585801966294d6deadeebepoger@google.com/// getTypeDeclType - Return the unique reference to the type for the 1655c8263e704135436f71a585801966294d6deadeebepoger@google.com/// specified type declaration. 1656c8263e704135436f71a585801966294d6deadeebepoger@google.comQualType ASTContext::getTypeDeclType(TypeDecl *Decl, TypeDecl* PrevDecl) { 1657c8263e704135436f71a585801966294d6deadeebepoger@google.com assert(Decl && "Passed null for Decl param"); 1658c8263e704135436f71a585801966294d6deadeebepoger@google.com if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 165938aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org 1660659c8c06cdc6c825004515240f81a8dafb2b4b0fepoger@google.com if (TypedefDecl *Typedef = dyn_cast<TypedefDecl>(Decl)) 1661c8263e704135436f71a585801966294d6deadeebepoger@google.com return getTypedefType(Typedef); 166280724dfeb320d1152128cd33636c9024952432d3epoger@google.com else if (isa<TemplateTypeParmDecl>(Decl)) { 1663c8263e704135436f71a585801966294d6deadeebepoger@google.com assert(false && "Template type parameter types are always available."); 166480724dfeb320d1152128cd33636c9024952432d3epoger@google.com } else if (ObjCInterfaceDecl *ObjCInterface 1665c8263e704135436f71a585801966294d6deadeebepoger@google.com = dyn_cast<ObjCInterfaceDecl>(Decl)) 1666c8263e704135436f71a585801966294d6deadeebepoger@google.com return getObjCInterfaceType(ObjCInterface); 1667c8263e704135436f71a585801966294d6deadeebepoger@google.com 1668c8263e704135436f71a585801966294d6deadeebepoger@google.com if (RecordDecl *Record = dyn_cast<RecordDecl>(Decl)) { 1669c8263e704135436f71a585801966294d6deadeebepoger@google.com if (PrevDecl) 1670c8263e704135436f71a585801966294d6deadeebepoger@google.com Decl->TypeForDecl = PrevDecl->TypeForDecl; 1671c8263e704135436f71a585801966294d6deadeebepoger@google.com else 167280724dfeb320d1152128cd33636c9024952432d3epoger@google.com Decl->TypeForDecl = new (*this, TypeAlignment) RecordType(Record); 167380724dfeb320d1152128cd33636c9024952432d3epoger@google.com } else if (EnumDecl *Enum = dyn_cast<EnumDecl>(Decl)) { 167480724dfeb320d1152128cd33636c9024952432d3epoger@google.com if (PrevDecl) 167580724dfeb320d1152128cd33636c9024952432d3epoger@google.com Decl->TypeForDecl = PrevDecl->TypeForDecl; 167680724dfeb320d1152128cd33636c9024952432d3epoger@google.com else 167785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Decl->TypeForDecl = new (*this, TypeAlignment) EnumType(Enum); 167885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org } else 167985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org assert(false && "TypeDecl without a type?"); 168085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 168185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (!PrevDecl) Types.push_back(Decl->TypeForDecl); 168285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return QualType(Decl->TypeForDecl, 0); 168385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org} 168485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 168585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// getTypedefType - Return the unique reference to the type for the 168685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// specified typename decl. 168785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.orgQualType ASTContext::getTypedefType(TypedefDecl *Decl) { 168885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (Decl->TypeForDecl) return QualType(Decl->TypeForDecl, 0); 168985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 169085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org QualType Canonical = getCanonicalType(Decl->getUnderlyingType()); 169185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Decl->TypeForDecl = new(*this, TypeAlignment) 169285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TypedefType(Type::Typedef, Decl, Canonical); 169385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Types.push_back(Decl->TypeForDecl); 169485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return QualType(Decl->TypeForDecl, 0); 169585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org} 169685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 169785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// \brief Retrieve the template type parameter type for a template 169885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// parameter or parameter pack with the given depth, index, and (optionally) 169985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// name. 170085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.orgQualType ASTContext::getTemplateTypeParmType(unsigned Depth, unsigned Index, 170138aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org bool ParameterPack, 170285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org IdentifierInfo *Name) { 170385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org llvm::FoldingSetNodeID ID; 170485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateTypeParmType::Profile(ID, Depth, Index, ParameterPack, Name); 170585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org void *InsertPos = 0; 170685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateTypeParmType *TypeParm 170785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org = TemplateTypeParmTypes.FindNodeOrInsertPos(ID, InsertPos); 170885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 170985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (TypeParm) 171085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return QualType(TypeParm, 0); 171185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 171285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (Name) { 171385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org QualType Canon = getTemplateTypeParmType(Depth, Index, ParameterPack); 171485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TypeParm = new (*this, TypeAlignment) 171585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateTypeParmType(Depth, Index, ParameterPack, Name, Canon); 171685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org } else 171785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TypeParm = new (*this, TypeAlignment) 171885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateTypeParmType(Depth, Index, ParameterPack); 171985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 172085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Types.push_back(TypeParm); 172185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateTypeParmTypes.InsertNode(TypeParm, InsertPos); 172285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 172385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return QualType(TypeParm, 0); 172485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org} 172585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 172685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.orgQualType 172785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.orgASTContext::getTemplateSpecializationType(TemplateName Template, 172885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org const TemplateArgument *Args, 172985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org unsigned NumArgs, 173085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org QualType Canon) { 173185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (!Canon.isNull()) 173285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Canon = getCanonicalType(Canon); 173385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org else { 173485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // Build the canonical template specialization type. 173585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateName CanonTemplate = getCanonicalTemplateName(Template); 173685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org llvm::SmallVector<TemplateArgument, 4> CanonArgs; 173785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org CanonArgs.reserve(NumArgs); 173885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org for (unsigned I = 0; I != NumArgs; ++I) 173985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org CanonArgs.push_back(getCanonicalTemplateArgument(Args[I])); 174085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 174185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // Determine whether this canonical template specialization type already 174285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // exists. 174385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org llvm::FoldingSetNodeID ID; 174485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateSpecializationType::Profile(ID, CanonTemplate, 174585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org CanonArgs.data(), NumArgs, *this); 174685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 174785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org void *InsertPos = 0; 174885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateSpecializationType *Spec 174985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org = TemplateSpecializationTypes.FindNodeOrInsertPos(ID, InsertPos); 175085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 175185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (!Spec) { 175285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // Allocate a new canonical template specialization type. 175385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org void *Mem = Allocate((sizeof(TemplateSpecializationType) + 175485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org sizeof(TemplateArgument) * NumArgs), 175585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TypeAlignment); 175685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Spec = new (Mem) TemplateSpecializationType(*this, CanonTemplate, 175785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org CanonArgs.data(), NumArgs, 175885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Canon); 175985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Types.push_back(Spec); 176085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateSpecializationTypes.InsertNode(Spec, InsertPos); 176185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org } 176285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 176385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (Canon.isNull()) 176485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Canon = QualType(Spec, 0); 176585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org assert(Canon->isDependentType() && 176685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org "Non-dependent template-id type must have a canonical type"); 176785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org } 176885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 176985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // Allocate the (non-canonical) template specialization type, but don't 177085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // try to unique it: these types typically have location information that 177185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // we don't unique and don't want to lose. 177285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org void *Mem = Allocate((sizeof(TemplateSpecializationType) + 177385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org sizeof(TemplateArgument) * NumArgs), 177485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TypeAlignment); 177585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org TemplateSpecializationType *Spec 177685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org = new (Mem) TemplateSpecializationType(*this, Template, Args, NumArgs, 177785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Canon); 177885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 177985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Types.push_back(Spec); 178085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return QualType(Spec, 0); 178185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org} 178285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 178385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.orgQualType 178485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.orgASTContext::getQualifiedNameType(NestedNameSpecifier *NNS, 178585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org QualType NamedType) { 178685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org llvm::FoldingSetNodeID ID; 178785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org QualifiedNameType::Profile(ID, NNS, NamedType); 178885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 178985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org void *InsertPos = 0; 179085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org QualifiedNameType *T 179185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org = QualifiedNameTypes.FindNodeOrInsertPos(ID, InsertPos); 179285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (T) 179385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return QualType(T, 0); 179485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 179585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org T = new (*this) QualifiedNameType(NNS, NamedType, 179685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org getCanonicalType(NamedType)); 179785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org Types.push_back(T); 179885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org QualifiedNameTypes.InsertNode(T, InsertPos); 179985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return QualType(T, 0); 180085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org} 180185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 180285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.orgQualType ASTContext::getTypenameType(NestedNameSpecifier *NNS, 180385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org const IdentifierInfo *Name, 180485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org QualType Canon) { 180585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 180685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 180785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (Canon.isNull()) { 180885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 180985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (CanonNNS != NNS) 1810310478e72c63e639373465216271b81f1e4a9136epoger@google.com Canon = getTypenameType(CanonNNS, Name); 1811f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com } 1812f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com 1813f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com llvm::FoldingSetNodeID ID; 1814f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com TypenameType::Profile(ID, NNS, Name); 1815f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com 1816f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com void *InsertPos = 0; 1817f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com TypenameType *T 1818f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1819f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com if (T) 1820f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com return QualType(T, 0); 18212b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org 1822f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com T = new (*this) TypenameType(NNS, Name, Canon); 1823f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com Types.push_back(T); 1824f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com TypenameTypes.InsertNode(T, InsertPos); 1825f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com return QualType(T, 0); 1826f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com} 1827f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com 1828f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.comQualType 1829f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.comASTContext::getTypenameType(NestedNameSpecifier *NNS, 1830f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com const TemplateSpecializationType *TemplateId, 1831f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com QualType Canon) { 1832f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com assert(NNS->isDependent() && "nested-name-specifier must be dependent"); 1833f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com 1834f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com if (Canon.isNull()) { 1835f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 1836f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com QualType CanonType = getCanonicalType(QualType(TemplateId, 0)); 1837f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com if (CanonNNS != NNS || CanonType != QualType(TemplateId, 0)) { 1838f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com const TemplateSpecializationType *CanonTemplateId 1839f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com = CanonType->getAs<TemplateSpecializationType>(); 1840f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com assert(CanonTemplateId && 1841f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com "Canonical type must also be a template specialization type"); 1842f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com Canon = getTypenameType(CanonNNS, CanonTemplateId); 1843f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com } 1844f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com } 1845f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com 1846f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com llvm::FoldingSetNodeID ID; 1847310478e72c63e639373465216271b81f1e4a9136epoger@google.com TypenameType::Profile(ID, NNS, TemplateId); 1848310478e72c63e639373465216271b81f1e4a9136epoger@google.com 1849310478e72c63e639373465216271b81f1e4a9136epoger@google.com void *InsertPos = 0; 1850310478e72c63e639373465216271b81f1e4a9136epoger@google.com TypenameType *T 1851310478e72c63e639373465216271b81f1e4a9136epoger@google.com = TypenameTypes.FindNodeOrInsertPos(ID, InsertPos); 1852310478e72c63e639373465216271b81f1e4a9136epoger@google.com if (T) 1853310478e72c63e639373465216271b81f1e4a9136epoger@google.com return QualType(T, 0); 1854310478e72c63e639373465216271b81f1e4a9136epoger@google.com 1855310478e72c63e639373465216271b81f1e4a9136epoger@google.com T = new (*this) TypenameType(NNS, TemplateId, Canon); 1856310478e72c63e639373465216271b81f1e4a9136epoger@google.com Types.push_back(T); 1857310478e72c63e639373465216271b81f1e4a9136epoger@google.com TypenameTypes.InsertNode(T, InsertPos); 1858310478e72c63e639373465216271b81f1e4a9136epoger@google.com return QualType(T, 0); 1859310478e72c63e639373465216271b81f1e4a9136epoger@google.com} 1860310478e72c63e639373465216271b81f1e4a9136epoger@google.com 1861310478e72c63e639373465216271b81f1e4a9136epoger@google.comQualType 1862310478e72c63e639373465216271b81f1e4a9136epoger@google.comASTContext::getElaboratedType(QualType UnderlyingType, 1863310478e72c63e639373465216271b81f1e4a9136epoger@google.com ElaboratedType::TagKind Tag) { 1864310478e72c63e639373465216271b81f1e4a9136epoger@google.com llvm::FoldingSetNodeID ID; 1865310478e72c63e639373465216271b81f1e4a9136epoger@google.com ElaboratedType::Profile(ID, UnderlyingType, Tag); 1866310478e72c63e639373465216271b81f1e4a9136epoger@google.com 1867310478e72c63e639373465216271b81f1e4a9136epoger@google.com void *InsertPos = 0; 1868310478e72c63e639373465216271b81f1e4a9136epoger@google.com ElaboratedType *T = ElaboratedTypes.FindNodeOrInsertPos(ID, InsertPos); 1869310478e72c63e639373465216271b81f1e4a9136epoger@google.com if (T) 1870310478e72c63e639373465216271b81f1e4a9136epoger@google.com return QualType(T, 0); 1871310478e72c63e639373465216271b81f1e4a9136epoger@google.com 1872310478e72c63e639373465216271b81f1e4a9136epoger@google.com QualType Canon = getCanonicalType(UnderlyingType); 1873310478e72c63e639373465216271b81f1e4a9136epoger@google.com 1874310478e72c63e639373465216271b81f1e4a9136epoger@google.com T = new (*this) ElaboratedType(UnderlyingType, Tag, Canon); 1875310478e72c63e639373465216271b81f1e4a9136epoger@google.com Types.push_back(T); 1876310478e72c63e639373465216271b81f1e4a9136epoger@google.com ElaboratedTypes.InsertNode(T, InsertPos); 1877310478e72c63e639373465216271b81f1e4a9136epoger@google.com return QualType(T, 0); 1878310478e72c63e639373465216271b81f1e4a9136epoger@google.com} 1879310478e72c63e639373465216271b81f1e4a9136epoger@google.com 1880310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// CmpProtocolNames - Comparison predicate for sorting protocols 1881310478e72c63e639373465216271b81f1e4a9136epoger@google.com/// alphabetically. 1882310478e72c63e639373465216271b81f1e4a9136epoger@google.comstatic bool CmpProtocolNames(const ObjCProtocolDecl *LHS, 1883310478e72c63e639373465216271b81f1e4a9136epoger@google.com const ObjCProtocolDecl *RHS) { 1884310478e72c63e639373465216271b81f1e4a9136epoger@google.com return LHS->getDeclName() < RHS->getDeclName(); 18850dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org} 18860dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 18870dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.orgstatic void SortAndUniqueProtocols(ObjCProtocolDecl **&Protocols, 1888fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com unsigned &NumProtocols) { 1889fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com ObjCProtocolDecl **ProtocolsEnd = Protocols+NumProtocols; 1890fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com 1891fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com // Sort protocols, keyed by name. 1892fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com std::sort(Protocols, Protocols+NumProtocols, CmpProtocolNames); 1893fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com 1894fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com // Remove duplicates. 1895fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com ProtocolsEnd = std::unique(Protocols, ProtocolsEnd); 1896fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com NumProtocols = ProtocolsEnd-Protocols; 1897fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com} 1898fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com 18990dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// getObjCObjectPointerType - Return a ObjCObjectPointerType type for 19000dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// the given interface decl and the conforming protocol list. 19010dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.orgQualType ASTContext::getObjCObjectPointerType(QualType InterfaceT, 19020dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org ObjCProtocolDecl **Protocols, 19038fc3766c58ec879389c3c83c96a73e50ff59eb78vandebo@chromium.org unsigned NumProtocols) { 19040dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // Sort the protocol list alphabetically to canonicalize it. 19050dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (NumProtocols) 19060dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org SortAndUniqueProtocols(Protocols, NumProtocols); 19070dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 19080dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org llvm::FoldingSetNodeID ID; 1909fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com ObjCObjectPointerType::Profile(ID, InterfaceT, Protocols, NumProtocols); 1910fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com 1911fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com void *InsertPos = 0; 1912fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com if (ObjCObjectPointerType *QT = 1913fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com ObjCObjectPointerTypes.FindNodeOrInsertPos(ID, InsertPos)) 1914ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return QualType(QT, 0); 1915ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 1916fb2cd425c2271c3d42c9667753b33ae71f05ef1breed@google.com // No Match; 191709fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com ObjCObjectPointerType *QType = new (*this, TypeAlignment) 191809fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com ObjCObjectPointerType(InterfaceT, Protocols, NumProtocols); 1919dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com 1920dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com Types.push_back(QType); 1921dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com ObjCObjectPointerTypes.InsertNode(QType, InsertPos); 1922dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com return QualType(QType, 0); 1923dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com} 1924dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com 1925dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com/// getObjCInterfaceType - Return the unique reference to the type for the 192609fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com/// specified ObjC interface decl. The list of protocols is optional. 1927dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.comQualType ASTContext::getObjCInterfaceType(const ObjCInterfaceDecl *Decl, 1928dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com ObjCProtocolDecl **Protocols, unsigned NumProtocols) { 1929dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com if (NumProtocols) 1930ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // Sort the protocol list alphabetically to canonicalize it. 1931dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com SortAndUniqueProtocols(Protocols, NumProtocols); 1932dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com 1933ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org llvm::FoldingSetNodeID ID; 19342b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org ObjCInterfaceType::Profile(ID, Decl, Protocols, NumProtocols); 19352b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org 1936ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org void *InsertPos = 0; 1937ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org if (ObjCInterfaceType *QT = 1938dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com ObjCInterfaceTypes.FindNodeOrInsertPos(ID, InsertPos)) 1939dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com return QualType(QT, 0); 1940ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 1941dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com // No Match; 1942dd8e353bef35b2656b83499289b409af3b0e3f10bsalomon@google.com ObjCInterfaceType *QType = new (*this, TypeAlignment) 194309fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com ObjCInterfaceType(const_cast<ObjCInterfaceDecl*>(Decl), 19442b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org Protocols, NumProtocols); 1945ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org Types.push_back(QType); 194609fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com ObjCInterfaceTypes.InsertNode(QType, InsertPos); 194709fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com return QualType(QType, 0); 19487d519305bb52eadf6b8265c6720642193791a364scroggo@google.com} 194909fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com 195009fd4d216963c498c24ba355accce9337a5029a8scroggo@google.comQualType ASTContext::getObjCProtocolListType(QualType T, 195109fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com ObjCProtocolDecl **Protocols, 195209fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com unsigned NumProtocols) { 19530b735631b7d22316693629a4110c7e95b2a7633escroggo@google.com llvm::FoldingSetNodeID ID; 19542b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org ObjCProtocolListType::Profile(ID, T, Protocols, NumProtocols); 1955ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 195609fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com void *InsertPos = 0; 195709fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com if (ObjCProtocolListType *QT = 195809fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com ObjCProtocolListTypes.FindNodeOrInsertPos(ID, InsertPos)) 1959ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return QualType(QT, 0); 1960ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 1961ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // No Match; 1962ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org ObjCProtocolListType *QType = new (*this, TypeAlignment) 1963ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org ObjCProtocolListType(T, Protocols, NumProtocols); 1964ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org Types.push_back(QType); 1965ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org ObjCProtocolListTypes.InsertNode(QType, InsertPos); 1966ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return QualType(QType, 0); 1967ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org} 1968ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 1969ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// getTypeOfExprType - Unlike many "get<Type>" functions, we can't unique 1970ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// TypeOfExprType AST's (since expression's are never shared). For example, 1971ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// multiple declarations that refer to "typeof(x)" all contain different 1972ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// DeclRefExpr's. This doesn't effect the type checker, since it operates 1973ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// on canonical type's (which are always unique). 1974ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.orgQualType ASTContext::getTypeOfExprType(Expr *tofExpr) { 1975ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org TypeOfExprType *toe; 1976fb2cd425c2271c3d42c9667753b33ae71f05ef1breed@google.com if (tofExpr->isTypeDependent()) { 1977ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org llvm::FoldingSetNodeID ID; 1978ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org DependentTypeOfExprType::Profile(ID, *this, tofExpr); 1979ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 1980ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org void *InsertPos = 0; 1981ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org DependentTypeOfExprType *Canon 1982ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org = DependentTypeOfExprTypes.FindNodeOrInsertPos(ID, InsertPos); 1983ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org if (Canon) { 19842b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org // We already have a "canonical" version of an identical, dependent 19852b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org // typeof(expr) type. Use that as our canonical type. 1986ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, 1987ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org QualType((TypeOfExprType*)Canon, 0)); 1988ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org } 1989ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org else { 1990ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // Build a new, canonical typeof(expr) type. 19912b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org Canon 19922b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org = new (*this, TypeAlignment) DependentTypeOfExprType(*this, tofExpr); 19932b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org DependentTypeOfExprTypes.InsertNode(Canon, InsertPos); 1994ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org toe = Canon; 1995ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org } 1996ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org } else { 19974c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com QualType Canonical = getCanonicalType(tofExpr->getType()); 19984c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com toe = new (*this, TypeAlignment) TypeOfExprType(tofExpr, Canonical); 1999ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org } 20004c75f241cb75f202cfa51569ba8dc4749a28a9f7bsalomon@google.com Types.push_back(toe); 2001ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return QualType(toe, 0); 20022b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org} 2003ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2004ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// getTypeOfType - Unlike many "get<Type>" functions, we don't unique 2005ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// TypeOfType AST's. The only motivation to unique these nodes would be 2006ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// memory savings. Since typeof(t) is fairly uncommon, space shouldn't be 2007ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// an issue. This doesn't effect the type checker, since it operates 2008ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// on canonical type's (which are always unique). 2009ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.orgQualType ASTContext::getTypeOfType(QualType tofType) { 2010ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org QualType Canonical = getCanonicalType(tofType); 2011ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org TypeOfType *tot = new (*this, TypeAlignment) TypeOfType(tofType, Canonical); 20122b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org Types.push_back(tot); 2013ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return QualType(tot, 0); 2014ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org} 2015ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2016ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// getDecltypeForExpr - Given an expr, will return the decltype for that 20170dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// expression, according to the rules in C++0x [dcl.type.simple]p4 20180dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.orgstatic QualType getDecltypeForExpr(const Expr *e, ASTContext &Context) { 20190dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (e->isTypeDependent()) 20200dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org return Context.DependentTy; 20210dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 20220dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // If e is an id expression or a class member access, decltype(e) is defined 20230dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // as the type of the entity named by e. 20240dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (const DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(e)) { 20250dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (const ValueDecl *VD = dyn_cast<ValueDecl>(DRE->getDecl())) 20260dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org return VD->getType(); 20270dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org } 20280dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (const MemberExpr *ME = dyn_cast<MemberExpr>(e)) { 20290dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (const FieldDecl *FD = dyn_cast<FieldDecl>(ME->getMemberDecl())) 20300dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org return FD->getType(); 20310dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org } 2032f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org // If e is a function call or an invocation of an overloaded operator, 2033f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org // (parentheses around e are ignored), decltype(e) is defined as the 20340dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // return type of that function. 20350dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (const CallExpr *CE = dyn_cast<CallExpr>(e->IgnoreParens())) 20360dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org return CE->getCallReturnType(); 20370dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 20380dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org QualType T = e->getType(); 2039f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org 2040f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org // Otherwise, where T is the type of e, if e is an lvalue, decltype(e) is 2041f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org // defined as T&, otherwise decltype(e) is defined as T. 2042f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org if (e->isLvalue(Context) == Expr::LV_Valid) 2043f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org T = Context.getLValueReferenceType(T); 2044f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org 20452b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org return T; 2046f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org} 2047f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org 2048f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org/// getDecltypeType - Unlike many "get<Type>" functions, we don't unique 2049f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org/// DecltypeType AST's. The only motivation to unique these nodes would be 2050f8afb2bd5853f9d66448ba1f23251f8c93340bf6vandebo@chromium.org/// memory savings. Since decltype(t) is fairly uncommon, space shouldn't be 20510dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// an issue. This doesn't effect the type checker, since it operates 20520dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org/// on canonical type's (which are always unique). 20530dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.orgQualType ASTContext::getDecltypeType(Expr *e) { 20540dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DecltypeType *dt; 20550dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (e->isTypeDependent()) { 20560dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org llvm::FoldingSetNodeID ID; 20570dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentDecltypeType::Profile(ID, *this, e); 20580dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 20592b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org void *InsertPos = 0; 20600dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org DependentDecltypeType *Canon 20610dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org = DependentDecltypeTypes.FindNodeOrInsertPos(ID, InsertPos); 20620dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org if (Canon) { 20630dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // We already have a "canonical" version of an equivalent, dependent 2064ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // decltype type. Use that as our canonical type. 20659677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org dt = new (*this, TypeAlignment) DecltypeType(e, DependentTy, 2066ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org QualType((DecltypeType*)Canon, 0)); 20679677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org } 20689677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org else { 20699677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org // Build a new, canonical typeof(expr) type. 20709677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org Canon = new (*this, TypeAlignment) DependentDecltypeType(*this, e); 20712b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org DependentDecltypeTypes.InsertNode(Canon, InsertPos); 2072ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org dt = Canon; 20739677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org } 2074ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org } else { 20759677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org QualType T = getDecltypeForExpr(e, *this); 20769677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org dt = new (*this, TypeAlignment) DecltypeType(e, T, getCanonicalType(T)); 20779677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org } 2078ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org Types.push_back(dt); 2079ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return QualType(dt, 0); 2080ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org} 20813a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com 20823e62ebf93b43139202ce803245411467c7ed13ffcommit-bot@chromium.org/// getTagDeclType - Return the unique reference to the type for the 20833a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com/// specified TagDecl (struct/union/class/enum) decl. 20843a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.comQualType ASTContext::getTagDeclType(const TagDecl *Decl) { 20853e62ebf93b43139202ce803245411467c7ed13ffcommit-bot@chromium.org assert (Decl); 20863e62ebf93b43139202ce803245411467c7ed13ffcommit-bot@chromium.org // FIXME: What is the design on getTagDeclType when it requires casting 2087f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com // away const? mutable? 2088f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com return getTypeDeclType(const_cast<TagDecl*>(Decl)); 2089f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com} 2090f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com 2091f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com/// getSizeType - Return the unique type for "size_t" (C99 7.17), the result 2092f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com/// of the sizeof operator (C99 6.5.3.4p4). The value is target dependent and 2093f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com/// needs to agree with the definition in <stddef.h>. 2094f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.comQualType ASTContext::getSizeType() const { 2095f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com return getFromTargetType(Target.getSizeType()); 2096f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com} 2097f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com 2098f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com/// getSignedWCharType - Return the type of "signed wchar_t". 20993e62ebf93b43139202ce803245411467c7ed13ffcommit-bot@chromium.org/// Used when in C++, as a GCC extension. 2100f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.comQualType ASTContext::getSignedWCharType() const { 2101f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com // FIXME: derive from "Target" ? 2102f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com return WCharTy; 2103f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com} 2104f711f320a34216fc9f64839b90b99a1492c54e09epoger@google.com 21053a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com/// getUnsignedWCharType - Return the type of "unsigned wchar_t". 21063a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.com/// Used when in C++, as a GCC extension. 21073a882dda0787e6957cfb37f6b5a68bcd31ce5cf7epoger@google.comQualType ASTContext::getUnsignedWCharType() const { 2108ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // FIXME: derive from "Target" ? 2109ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return UnsignedIntTy; 2110ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org} 2111ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2112ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// getPointerDiffType - Return the unique type for "ptrdiff_t" (ref?) 2113ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// defined in <stddef.h>. Pointer - pointer requires this (C99 6.5.6p9). 21142b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.orgQualType ASTContext::getPointerDiffType() const { 2115ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return getFromTargetType(Target.getPtrDiffType(0)); 2116ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org} 2117ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2118ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org//===----------------------------------------------------------------------===// 2119ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org// Type Operators 21209677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org//===----------------------------------------------------------------------===// 21219677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org 2122ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// getCanonicalType - Return the canonical (structural) type corresponding to 21239677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org/// the specified potentially non-canonical type. The non-canonical version 21249677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org/// of a type may have many "decorated" versions of types. Decorators can 21252b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org/// include typedefs, 'typeof' operators, etc. The returned type is guaranteed 2126ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org/// to be free of any of these, allowing two canonical types to be compared 21279677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org/// for exact equality with a simple pointer comparison. 2128ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.orgCanQualType ASTContext::getCanonicalType(QualType T) { 2129ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org QualifierCollector Quals; 21309677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org const Type *Ptr = Quals.strip(T); 2131ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org QualType CanType = Ptr->getCanonicalTypeInternal(); 2132ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 21339677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org // The canonical internal type will be the canonical type *except* 2134ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // that we push type qualifiers down through array types. 2135ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 21369677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org // If there are no new qualifiers to push down, stop here. 21379677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org if (!Quals.hasQualifiers()) 2138ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return CanQualType::CreateUnsafe(CanType); 2139ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 21409677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org // If the type qualifiers are on an array type, get the canonical 2141ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // type of the array with the qualifiers applied to the element 21429677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org // type. 21439677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org ArrayType *AT = dyn_cast<ArrayType>(CanType); 21449677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org if (!AT) 2145ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return CanQualType::CreateUnsafe(getQualifiedType(CanType, Quals)); 21469677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org 21479677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org // Get the canonical version of the element with the extra qualifiers on it. 2148ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // This can recursively sink qualifiers through multiple levels of arrays. 21499677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org QualType NewEltTy = getQualifiedType(AT->getElementType(), Quals); 21502b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org NewEltTy = getCanonicalType(NewEltTy); 2151ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2152c5205629da1e6e4aca83a2a1b3ce08f4bee360fdscroggo@google.com if (ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 2153c5205629da1e6e4aca83a2a1b3ce08f4bee360fdscroggo@google.com return CanQualType::CreateUnsafe( 2154ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org getConstantArrayType(NewEltTy, CAT->getSize(), 2155ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org CAT->getSizeModifier(), 21569677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org CAT->getIndexTypeCVRQualifiers())); 2157ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org if (IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(AT)) 2158ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return CanQualType::CreateUnsafe( 2159ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org getIncompleteArrayType(NewEltTy, IAT->getSizeModifier(), 21609677a84b4055ab084b2aae6adeab31ab1c7a95b7commit-bot@chromium.org IAT->getIndexTypeCVRQualifiers())); 2161ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2162ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org if (DependentSizedArrayType *DSAT = dyn_cast<DependentSizedArrayType>(AT)) 2163c5205629da1e6e4aca83a2a1b3ce08f4bee360fdscroggo@google.com return CanQualType::CreateUnsafe( 2164c5205629da1e6e4aca83a2a1b3ce08f4bee360fdscroggo@google.com getDependentSizedArrayType(NewEltTy, 2165ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org DSAT->getSizeExpr() ? 2166ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org DSAT->getSizeExpr()->Retain() : 0, 216709fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com DSAT->getSizeModifier(), 21688570b5c8695052378491b0c61e745d736fe85c8drobertphillips@google.com DSAT->getIndexTypeCVRQualifiers(), 216909fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com DSAT->getBracketsRange())); 217009fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com 217137269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com VariableArrayType *VAT = cast<VariableArrayType>(AT); 21722b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org return CanQualType::CreateUnsafe(getVariableArrayType(NewEltTy, 2173ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org VAT->getSizeExpr() ? 217437269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com VAT->getSizeExpr()->Retain() : 0, 217537269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com VAT->getSizeModifier(), 2176b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com VAT->getIndexTypeCVRQualifiers(), 21772b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org VAT->getBracketsRange())); 2178b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com} 2179ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2180b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.comTemplateName ASTContext::getCanonicalTemplateName(TemplateName Name) { 218137269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com // If this template name refers to a template, the canonical 2182b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com // template name merely stores the template itself. 21832b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org if (TemplateDecl *Template = Name.getAsTemplateDecl()) 2184b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com return TemplateName(cast<TemplateDecl>(Template->getCanonicalDecl())); 2185ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 218637269607334b99bf814c7dc6b426745d9b7c7e3fepoger@google.com // If this template name refers to a set of overloaded function templates, 2187f32f6e8323d201ede639ba66e1614783428a166dchudy@google.com /// the canonical template name merely stores the set of function templates. 2188ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org if (OverloadedFunctionDecl *Ovl = Name.getAsOverloadedFunctionDecl()) { 2189ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org OverloadedFunctionDecl *CanonOvl = 0; 2190ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org for (OverloadedFunctionDecl::function_iterator F = Ovl->function_begin(), 2191ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org FEnd = Ovl->function_end(); 2192ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org F != FEnd; ++F) { 2193ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org Decl *Canon = F->get()->getCanonicalDecl(); 2194ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org if (CanonOvl || Canon != F->get()) { 2195ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org if (!CanonOvl) 2196ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org CanonOvl = OverloadedFunctionDecl::Create(*this, 2197ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org Ovl->getDeclContext(), 2198ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org Ovl->getDeclName()); 2199ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 22002b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org CanonOvl->addOverload( 2201ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org AnyFunctionDecl::getFromNamedDecl(cast<NamedDecl>(Canon))); 2202ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org } 2203ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org } 2204ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2205ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return TemplateName(CanonOvl? CanonOvl : Ovl); 2206ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org } 2207ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2208ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org DependentTemplateName *DTN = Name.getAsDependentTemplateName(); 22096dda827913a3dbdb84934f4f1d79c0b702169e5ccommit-bot@chromium.org assert(DTN && "Non-dependent template names must refer to template decls."); 22106dda827913a3dbdb84934f4f1d79c0b702169e5ccommit-bot@chromium.org return DTN->CanonicalTemplateName; 22116dda827913a3dbdb84934f4f1d79c0b702169e5ccommit-bot@chromium.org} 22126dda827913a3dbdb84934f4f1d79c0b702169e5ccommit-bot@chromium.org 22136dda827913a3dbdb84934f4f1d79c0b702169e5ccommit-bot@chromium.orgTemplateArgument 2214ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.orgASTContext::getCanonicalTemplateArgument(const TemplateArgument &Arg) { 22156dda827913a3dbdb84934f4f1d79c0b702169e5ccommit-bot@chromium.org switch (Arg.getKind()) { 22166dda827913a3dbdb84934f4f1d79c0b702169e5ccommit-bot@chromium.org case TemplateArgument::Null: 22176dda827913a3dbdb84934f4f1d79c0b702169e5ccommit-bot@chromium.org return Arg; 2218ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2219ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org case TemplateArgument::Expression: 2220ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // FIXME: Build canonical expression? 2221ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return Arg; 2222ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2223ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org case TemplateArgument::Declaration: 2224ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return TemplateArgument(SourceLocation(), 2225ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org Arg.getAsDecl()->getCanonicalDecl()); 2226ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2227ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org case TemplateArgument::Integral: 22280dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org return TemplateArgument(SourceLocation(), 2229ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org *Arg.getAsIntegral(), 2230ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org getCanonicalType(Arg.getIntegralType())); 22310dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 2232ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org case TemplateArgument::Type: 2233ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return TemplateArgument(SourceLocation(), 2234ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org getCanonicalType(Arg.getAsType())); 2235ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2236ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org case TemplateArgument::Pack: { 2237ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // FIXME: Allocate in ASTContext 2238ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org TemplateArgument *CanonArgs = new TemplateArgument[Arg.pack_size()]; 2239ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org unsigned Idx = 0; 2240ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org for (TemplateArgument::pack_iterator A = Arg.pack_begin(), 22413e62ebf93b43139202ce803245411467c7ed13ffcommit-bot@chromium.org AEnd = Arg.pack_end(); 2242ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org A != AEnd; (void)++A, ++Idx) 2243ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org CanonArgs[Idx] = getCanonicalTemplateArgument(*A); 2244ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2245ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org TemplateArgument Result; 2246ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org Result.setArgumentPack(CanonArgs, Arg.pack_size(), false); 2247ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return Result; 2248ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org } 22490dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org } 2250ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org 2251ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org // Silence GCC warning 2252ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org assert(false && "Unhandled template argument kind"); 2253ab882bf205affcd29f62f764681bfdf09fde004ecommit-bot@chromium.org return TemplateArgument(); 2254b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com} 2255b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com 22562b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.orgNestedNameSpecifier * 2257b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.comASTContext::getCanonicalNestedNameSpecifier(NestedNameSpecifier *NNS) { 2258fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com if (!NNS) 22592b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org return 0; 2260fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com 22615f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com switch (NNS->getKind()) { 22622b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org case NestedNameSpecifier::Identifier: 22632b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org // Canonicalize the prefix but keep the identifier the same. 22645f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com return NestedNameSpecifier::Create(*this, 2265b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com getCanonicalNestedNameSpecifier(NNS->getPrefix()), 22662b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org NNS->getAsIdentifier()); 2267b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com 2268b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com case NestedNameSpecifier::Namespace: 22692b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org // A namespace is canonical; build a nested-name-specifier with 2270b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com // this namespace and no prefix. 22718570b5c8695052378491b0c61e745d736fe85c8drobertphillips@google.com return NestedNameSpecifier::Create(*this, 0, NNS->getAsNamespace()); 22728570b5c8695052378491b0c61e745d736fe85c8drobertphillips@google.com 2273310478e72c63e639373465216271b81f1e4a9136epoger@google.com case NestedNameSpecifier::TypeSpec: 2274ae7b8f3e7ba88baf5f64fdd2f6a70a55367a7ee1reed@google.com case NestedNameSpecifier::TypeSpecWithTemplate: { 2275ae7b8f3e7ba88baf5f64fdd2f6a70a55367a7ee1reed@google.com QualType T = getCanonicalType(QualType(NNS->getAsType(), 0)); 2276ae7b8f3e7ba88baf5f64fdd2f6a70a55367a7ee1reed@google.com return NestedNameSpecifier::Create(*this, 0, 2277e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com NNS->getKind() == NestedNameSpecifier::TypeSpecWithTemplate, 227809fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com T.getTypePtr()); 22790dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org } 22800dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 2281e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com case NestedNameSpecifier::Global: 2282e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com // The global specifier is canonical and unique. 2283fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com return NNS; 2284fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com } 22850dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org 22860dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // Required to silence a GCC warning 2287fdea3259d01572fdc09fec5ae84258a6e162da65epoger@google.com return 0; 2288e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com} 2289e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com 22905f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com 22915f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.comconst ArrayType *ASTContext::getAsArrayType(QualType T) { 22920dcbece326ce2fa1f9046aa69a21bb99de08714avandebo@chromium.org // Handle the non-qualified case efficiently. 22935f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com if (!T.hasQualifiers()) { 22945f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com // Handle the common positive case fast. 22955f99545de67ee729b4b17f1aae56f8c9dcf460f9epoger@google.com if (const ArrayType *AT = dyn_cast<ArrayType>(T)) 2296e8ebeb1f8fde6525bbab988c6090a5d3ab19855bepoger@google.com return AT; 22977361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com } 22987361f54294d65a5c42ce5cf1cd56d0fd7122e268bsalomon@google.com 229900dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com // Handle the common negative case fast. 2300f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org QualType CType = T->getCanonicalTypeInternal(); 2301f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org if (!isa<ArrayType>(CType)) 2302f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org return 0; 2303f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org 2304f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org // Apply any qualifiers from the array type to the element type. This 2305f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org // implements C99 6.7.3p8: "If the specification of an array type includes 2306f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org // any type qualifiers, the element type is so qualified, not the array type." 2307f4f9df4c193620167dc6f202f1b72245f4a260cdcommit-bot@chromium.org 230865caeaf32d09f5886f3c740cfef2f1c26ef9cb50skia.committer@gmail.com // If we get here, we either have type qualifiers on the type, or we have 23097fd2d70ad39661588de5910abe1006e073419f20scroggo@google.com // sugar such as a typedef in the way. If we have type qualifiers on the type 2310ae7b8f3e7ba88baf5f64fdd2f6a70a55367a7ee1reed@google.com // we must propagate them down into the element type. 231182cb65ba18150e1ff5b6a0e78a8630d59d4d4af9epoger@google.com 231282cb65ba18150e1ff5b6a0e78a8630d59d4d4af9epoger@google.com QualifierCollector Qs; 2313ae7b8f3e7ba88baf5f64fdd2f6a70a55367a7ee1reed@google.com const Type *Ty = Qs.strip(T.getDesugaredType()); 2314ae7b8f3e7ba88baf5f64fdd2f6a70a55367a7ee1reed@google.com 231582cb65ba18150e1ff5b6a0e78a8630d59d4d4af9epoger@google.com // If we have a simple case, just return now. 2316ae7b8f3e7ba88baf5f64fdd2f6a70a55367a7ee1reed@google.com const ArrayType *ATy = dyn_cast<ArrayType>(Ty); 2317ae7b8f3e7ba88baf5f64fdd2f6a70a55367a7ee1reed@google.com if (ATy == 0 || Qs.empty()) 231838aeb0fd7a2bdab5e44531d96045dffe25c8e2b0commit-bot@chromium.org return ATy; 2319586db93c447b753364d50fadc5426de4fef9a759sglez@google.com 2320a6f37e77c1c95f0a06ac55ff659cb7b8dfabefcfcommit-bot@chromium.org // Otherwise, we have an array and we have qualifiers on it. Push the 2321ece2b0297c1d55c46b4c63ba7a54f518a490a502reed@google.com // qualifiers into the array element type and return a new array type. 2322ece2b0297c1d55c46b4c63ba7a54f518a490a502reed@google.com // Get the canonical version of the element with the extra qualifiers on it. 2323ece2b0297c1d55c46b4c63ba7a54f518a490a502reed@google.com // This can recursively sink qualifiers through multiple levels of arrays. 2324310478e72c63e639373465216271b81f1e4a9136epoger@google.com QualType NewEltTy = getQualifiedType(ATy->getElementType(), Qs); 23259875dd14af6d768da8d1a4be58b98fc91ceca0ddtomhudson@google.com 23262b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(ATy)) 23272b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org return cast<ArrayType>(getConstantArrayType(NewEltTy, CAT->getSize(), 2328ebce16d21bd988ce32768f61946776a66b9b1f25djsollen@google.com CAT->getSizeModifier(), 232985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org CAT->getIndexTypeCVRQualifiers())); 233000dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com if (const IncompleteArrayType *IAT = dyn_cast<IncompleteArrayType>(ATy)) 2331310478e72c63e639373465216271b81f1e4a9136epoger@google.com return cast<ArrayType>(getIncompleteArrayType(NewEltTy, 2332310478e72c63e639373465216271b81f1e4a9136epoger@google.com IAT->getSizeModifier(), 2333310478e72c63e639373465216271b81f1e4a9136epoger@google.com IAT->getIndexTypeCVRQualifiers())); 233485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 233585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org if (const DependentSizedArrayType *DSAT 233685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org = dyn_cast<DependentSizedArrayType>(ATy)) 233785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return cast<ArrayType>( 233885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org getDependentSizedArrayType(NewEltTy, 233985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org DSAT->getSizeExpr() ? 234085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org DSAT->getSizeExpr()->Retain() : 0, 234185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org DSAT->getSizeModifier(), 234285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org DSAT->getIndexTypeCVRQualifiers(), 234385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org DSAT->getBracketsRange())); 234485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 234585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org const VariableArrayType *VAT = cast<VariableArrayType>(ATy); 234685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org return cast<ArrayType>(getVariableArrayType(NewEltTy, 234785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org VAT->getSizeExpr() ? 234885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org VAT->getSizeExpr()->Retain() : 0, 2349c8263e704135436f71a585801966294d6deadeebepoger@google.com VAT->getSizeModifier(), 2350c8263e704135436f71a585801966294d6deadeebepoger@google.com VAT->getIndexTypeCVRQualifiers(), 2351c8263e704135436f71a585801966294d6deadeebepoger@google.com VAT->getBracketsRange())); 2352c8263e704135436f71a585801966294d6deadeebepoger@google.com} 235385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 235485195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org 235585195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// getArrayDecayedType - Return the properly qualified result of decaying the 235685195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// specified array type to a pointer. This operation is non-trivial when 235785195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// handling typedefs etc. The canonical type of "T" must be an array type, 235885195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// this returns a pointer to a properly qualified element of the array. 235985195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// 236085195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org/// See C99 6.7.5.3p7 and C99 6.3.2.1p3. 236185195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.orgQualType ASTContext::getArrayDecayedType(QualType Ty) { 236285195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // Get the element type with 'getAsArrayType' so that we don't lose any 236385195486939b19a88b25b3ba0a1ad6640980fb5acommit-bot@chromium.org // typedefs in the element type of the array. This also handles propagation 2364310478e72c63e639373465216271b81f1e4a9136epoger@google.com // of type qualifiers from the array type into the element type if present 2365310478e72c63e639373465216271b81f1e4a9136epoger@google.com // (C99 6.7.3p8). 236651dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com const ArrayType *PrettyArrayType = getAsArrayType(Ty); 23672b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org assert(PrettyArrayType && "Not an array type!"); 23682b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org 23692b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org QualType PtrTy = getPointerType(PrettyArrayType->getElementType()); 23702b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org 23712b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org // int x[restrict 4] -> int *restrict 237251dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com return getQualifiedType(PtrTy, PrettyArrayType->getIndexTypeQualifiers()); 237351dbabee67ea1285e1115e535d26944d4da99be5epoger@google.com} 23745f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com 237507947d95657743a9c4c3bfec31e1205eb81e5910epoger@google.comQualType ASTContext::getBaseElementType(QualType QT) { 237607947d95657743a9c4c3bfec31e1205eb81e5910epoger@google.com QualifierCollector Qs; 237707947d95657743a9c4c3bfec31e1205eb81e5910epoger@google.com while (true) { 237807947d95657743a9c4c3bfec31e1205eb81e5910epoger@google.com const Type *UT = Qs.strip(QT); 2379c8263e704135436f71a585801966294d6deadeebepoger@google.com if (const ArrayType *AT = getAsArrayType(QualType(UT,0))) { 23802b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org QT = AT->getElementType(); 23812b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org } else { 2382c8263e704135436f71a585801966294d6deadeebepoger@google.com return Qs.apply(QT); 2383c8263e704135436f71a585801966294d6deadeebepoger@google.com } 2384c8263e704135436f71a585801966294d6deadeebepoger@google.com } 2385c8263e704135436f71a585801966294d6deadeebepoger@google.com} 238609fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com 238776c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.comQualType ASTContext::getBaseElementType(const ArrayType *AT) { 238876c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.com QualType ElemTy = AT->getElementType(); 238976c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.com 239076c913db20de7ae1baa49ae66e943bf7f40781ccepoger@google.com if (const ArrayType *AT = getAsArrayType(ElemTy)) 2391ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com return getBaseElementType(AT); 239209fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com 2393ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com return ElemTy; 2394ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com} 2395ee8a8e3931c1d3f39755ee8beaf0c7cb1ba91888epoger@google.com 2396cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com/// getConstantArrayElementCount - Returns number of constant array elements. 23975f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.comuint64_t 23985955202c805c7ef1448103cbf666972ea9d1ded1robertphillips@google.comASTContext::getConstantArrayElementCount(const ConstantArrayType *CA) const { 23995f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com uint64_t ElementCount = 1; 24005f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com do { 24015f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com ElementCount *= CA->getSize().getZExtValue(); 2402b0f8b430de74a51f35dbfbff5284a04f8d70ec48epoger@google.com CA = dyn_cast<ConstantArrayType>(CA->getElementType()); 24035f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com } while (CA); 24045f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com return ElementCount; 24052b3a204bf68c9e41e62e0f2db5dfe263ea811424commit-bot@chromium.org} 24065f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com 24075f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com/// getFloatingRank - Return a relative rank for floating point types. 24085f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com/// This routine will assert if passed a built-in type that isn't a float. 24095f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.comstatic FloatingRank getFloatingRank(QualType T) { 24105f9f2f574fe9b195f5f3e40edeb2e28b673511fdrobertphillips@google.com if (const ComplexType *CT = T->getAs<ComplexType>()) 2411977b9c8af3ef1b9a2fa2a0037cf3734cf2ba13d9robertphillips@google.com return getFloatingRank(CT->getElementType()); 2412cf8fb1f6f03fc77f9927564f9ef9abeeeec508d2bsalomon@google.com 2413977b9c8af3ef1b9a2fa2a0037cf3734cf2ba13d9robertphillips@google.com assert(T->getAs<BuiltinType>() && "getFloatingRank(): not a floating type"); 2414977b9c8af3ef1b9a2fa2a0037cf3734cf2ba13d9robertphillips@google.com switch (T->getAs<BuiltinType>()->getKind()) { 2415c8263e704135436f71a585801966294d6deadeebepoger@google.com default: assert(0 && "getFloatingRank(): not a floating type"); 241600dae86f5872b60927b28a32b375bc01cd7c61c9reed@android.com case BuiltinType::Float: return FloatRank; 24175987f58036574ccf23049b5fe71f29a441d0641dcaryclark@google.com case BuiltinType::Double: return DoubleRank; 241809fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com case BuiltinType::LongDouble: return LongDoubleRank; 241909fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com } 242009fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com} 242109fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com 242209fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com/// getFloatingTypeOfSizeWithinDomain - Returns a real floating 242309fd4d216963c498c24ba355accce9337a5029a8scroggo@google.com/// point or a complex type (based on typeDomain/typeSize). 24247158e6acca1b1ecc321d4d514a31cba11b5ead60borenet@google.com/// 'typeDomain' is a real floating point or complex type. 24255987f58036574ccf23049b5fe71f29a441d0641dcaryclark@google.com/// 'typeSize' is a real floating point or complex type. 24265987f58036574ccf23049b5fe71f29a441d0641dcaryclark@google.comQualType ASTContext::getFloatingTypeOfSizeWithinDomain(QualType Size, 24275987f58036574ccf23049b5fe71f29a441d0641dcaryclark@google.com QualType Domain) const { 24285987f58036574ccf23049b5fe71f29a441d0641dcaryclark@google.com FloatingRank EltRank = getFloatingRank(Size); 2429 if (Domain->isComplexType()) { 2430 switch (EltRank) { 2431 default: assert(0 && "getFloatingRank(): illegal value for rank"); 2432 case FloatRank: return FloatComplexTy; 2433 case DoubleRank: return DoubleComplexTy; 2434 case LongDoubleRank: return LongDoubleComplexTy; 2435 } 2436 } 2437 2438 assert(Domain->isRealFloatingType() && "Unknown domain!"); 2439 switch (EltRank) { 2440 default: assert(0 && "getFloatingRank(): illegal value for rank"); 2441 case FloatRank: return FloatTy; 2442 case DoubleRank: return DoubleTy; 2443 case LongDoubleRank: return LongDoubleTy; 2444 } 2445} 2446 2447/// getFloatingTypeOrder - Compare the rank of the two specified floating 2448/// point types, ignoring the domain of the type (i.e. 'double' == 2449/// '_Complex double'). If LHS > RHS, return 1. If LHS == RHS, return 0. If 2450/// LHS < RHS, return -1. 2451int ASTContext::getFloatingTypeOrder(QualType LHS, QualType RHS) { 2452 FloatingRank LHSR = getFloatingRank(LHS); 2453 FloatingRank RHSR = getFloatingRank(RHS); 2454 2455 if (LHSR == RHSR) 2456 return 0; 2457 if (LHSR > RHSR) 2458 return 1; 2459 return -1; 2460} 2461 2462/// getIntegerRank - Return an integer conversion rank (C99 6.3.1.1p1). This 2463/// routine will assert if passed a built-in type that isn't an integer or enum, 2464/// or if it is not canonicalized. 2465unsigned ASTContext::getIntegerRank(Type *T) { 2466 assert(T->isCanonical() && "T should be canonicalized"); 2467 if (EnumType* ET = dyn_cast<EnumType>(T)) 2468 T = ET->getDecl()->getIntegerType().getTypePtr(); 2469 2470 if (T->isSpecificBuiltinType(BuiltinType::WChar)) 2471 T = getFromTargetType(Target.getWCharType()).getTypePtr(); 2472 2473 if (T->isSpecificBuiltinType(BuiltinType::Char16)) 2474 T = getFromTargetType(Target.getChar16Type()).getTypePtr(); 2475 2476 if (T->isSpecificBuiltinType(BuiltinType::Char32)) 2477 T = getFromTargetType(Target.getChar32Type()).getTypePtr(); 2478 2479 // There are two things which impact the integer rank: the width, and 2480 // the ordering of builtins. The builtin ordering is encoded in the 2481 // bottom three bits; the width is encoded in the bits above that. 2482 if (FixedWidthIntType* FWIT = dyn_cast<FixedWidthIntType>(T)) 2483 return FWIT->getWidth() << 3; 2484 2485 switch (cast<BuiltinType>(T)->getKind()) { 2486 default: assert(0 && "getIntegerRank(): not a built-in integer"); 2487 case BuiltinType::Bool: 2488 return 1 + (getIntWidth(BoolTy) << 3); 2489 case BuiltinType::Char_S: 2490 case BuiltinType::Char_U: 2491 case BuiltinType::SChar: 2492 case BuiltinType::UChar: 2493 return 2 + (getIntWidth(CharTy) << 3); 2494 case BuiltinType::Short: 2495 case BuiltinType::UShort: 2496 return 3 + (getIntWidth(ShortTy) << 3); 2497 case BuiltinType::Int: 2498 case BuiltinType::UInt: 2499 return 4 + (getIntWidth(IntTy) << 3); 2500 case BuiltinType::Long: 2501 case BuiltinType::ULong: 2502 return 5 + (getIntWidth(LongTy) << 3); 2503 case BuiltinType::LongLong: 2504 case BuiltinType::ULongLong: 2505 return 6 + (getIntWidth(LongLongTy) << 3); 2506 case BuiltinType::Int128: 2507 case BuiltinType::UInt128: 2508 return 7 + (getIntWidth(Int128Ty) << 3); 2509 } 2510} 2511 2512/// \brief Whether this is a promotable bitfield reference according 2513/// to C99 6.3.1.1p2, bullet 2 (and GCC extensions). 2514/// 2515/// \returns the type this bit-field will promote to, or NULL if no 2516/// promotion occurs. 2517QualType ASTContext::isPromotableBitField(Expr *E) { 2518 FieldDecl *Field = E->getBitField(); 2519 if (!Field) 2520 return QualType(); 2521 2522 QualType FT = Field->getType(); 2523 2524 llvm::APSInt BitWidthAP = Field->getBitWidth()->EvaluateAsInt(*this); 2525 uint64_t BitWidth = BitWidthAP.getZExtValue(); 2526 uint64_t IntSize = getTypeSize(IntTy); 2527 // GCC extension compatibility: if the bit-field size is less than or equal 2528 // to the size of int, it gets promoted no matter what its type is. 2529 // For instance, unsigned long bf : 4 gets promoted to signed int. 2530 if (BitWidth < IntSize) 2531 return IntTy; 2532 2533 if (BitWidth == IntSize) 2534 return FT->isSignedIntegerType() ? IntTy : UnsignedIntTy; 2535 2536 // Types bigger than int are not subject to promotions, and therefore act 2537 // like the base type. 2538 // FIXME: This doesn't quite match what gcc does, but what gcc does here 2539 // is ridiculous. 2540 return QualType(); 2541} 2542 2543/// getPromotedIntegerType - Returns the type that Promotable will 2544/// promote to: C99 6.3.1.1p2, assuming that Promotable is a promotable 2545/// integer type. 2546QualType ASTContext::getPromotedIntegerType(QualType Promotable) { 2547 assert(!Promotable.isNull()); 2548 assert(Promotable->isPromotableIntegerType()); 2549 if (Promotable->isSignedIntegerType()) 2550 return IntTy; 2551 uint64_t PromotableSize = getTypeSize(Promotable); 2552 uint64_t IntSize = getTypeSize(IntTy); 2553 assert(Promotable->isUnsignedIntegerType() && PromotableSize <= IntSize); 2554 return (PromotableSize != IntSize) ? IntTy : UnsignedIntTy; 2555} 2556 2557/// getIntegerTypeOrder - Returns the highest ranked integer type: 2558/// C99 6.3.1.8p1. If LHS > RHS, return 1. If LHS == RHS, return 0. If 2559/// LHS < RHS, return -1. 2560int ASTContext::getIntegerTypeOrder(QualType LHS, QualType RHS) { 2561 Type *LHSC = getCanonicalType(LHS).getTypePtr(); 2562 Type *RHSC = getCanonicalType(RHS).getTypePtr(); 2563 if (LHSC == RHSC) return 0; 2564 2565 bool LHSUnsigned = LHSC->isUnsignedIntegerType(); 2566 bool RHSUnsigned = RHSC->isUnsignedIntegerType(); 2567 2568 unsigned LHSRank = getIntegerRank(LHSC); 2569 unsigned RHSRank = getIntegerRank(RHSC); 2570 2571 if (LHSUnsigned == RHSUnsigned) { // Both signed or both unsigned. 2572 if (LHSRank == RHSRank) return 0; 2573 return LHSRank > RHSRank ? 1 : -1; 2574 } 2575 2576 // Otherwise, the LHS is signed and the RHS is unsigned or visa versa. 2577 if (LHSUnsigned) { 2578 // If the unsigned [LHS] type is larger, return it. 2579 if (LHSRank >= RHSRank) 2580 return 1; 2581 2582 // If the signed type can represent all values of the unsigned type, it 2583 // wins. Because we are dealing with 2's complement and types that are 2584 // powers of two larger than each other, this is always safe. 2585 return -1; 2586 } 2587 2588 // If the unsigned [RHS] type is larger, return it. 2589 if (RHSRank >= LHSRank) 2590 return -1; 2591 2592 // If the signed type can represent all values of the unsigned type, it 2593 // wins. Because we are dealing with 2's complement and types that are 2594 // powers of two larger than each other, this is always safe. 2595 return 1; 2596} 2597 2598// getCFConstantStringType - Return the type used for constant CFStrings. 2599QualType ASTContext::getCFConstantStringType() { 2600 if (!CFConstantStringTypeDecl) { 2601 CFConstantStringTypeDecl = 2602 RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2603 &Idents.get("NSConstantString")); 2604 QualType FieldTypes[4]; 2605 2606 // const int *isa; 2607 FieldTypes[0] = getPointerType(IntTy.withConst()); 2608 // int flags; 2609 FieldTypes[1] = IntTy; 2610 // const char *str; 2611 FieldTypes[2] = getPointerType(CharTy.withConst()); 2612 // long length; 2613 FieldTypes[3] = LongTy; 2614 2615 // Create fields 2616 for (unsigned i = 0; i < 4; ++i) { 2617 FieldDecl *Field = FieldDecl::Create(*this, CFConstantStringTypeDecl, 2618 SourceLocation(), 0, 2619 FieldTypes[i], /*DInfo=*/0, 2620 /*BitWidth=*/0, 2621 /*Mutable=*/false); 2622 CFConstantStringTypeDecl->addDecl(Field); 2623 } 2624 2625 CFConstantStringTypeDecl->completeDefinition(*this); 2626 } 2627 2628 return getTagDeclType(CFConstantStringTypeDecl); 2629} 2630 2631void ASTContext::setCFConstantStringType(QualType T) { 2632 const RecordType *Rec = T->getAs<RecordType>(); 2633 assert(Rec && "Invalid CFConstantStringType"); 2634 CFConstantStringTypeDecl = Rec->getDecl(); 2635} 2636 2637QualType ASTContext::getObjCFastEnumerationStateType() { 2638 if (!ObjCFastEnumerationStateTypeDecl) { 2639 ObjCFastEnumerationStateTypeDecl = 2640 RecordDecl::Create(*this, TagDecl::TK_struct, TUDecl, SourceLocation(), 2641 &Idents.get("__objcFastEnumerationState")); 2642 2643 QualType FieldTypes[] = { 2644 UnsignedLongTy, 2645 getPointerType(ObjCIdTypedefType), 2646 getPointerType(UnsignedLongTy), 2647 getConstantArrayType(UnsignedLongTy, 2648 llvm::APInt(32, 5), ArrayType::Normal, 0) 2649 }; 2650 2651 for (size_t i = 0; i < 4; ++i) { 2652 FieldDecl *Field = FieldDecl::Create(*this, 2653 ObjCFastEnumerationStateTypeDecl, 2654 SourceLocation(), 0, 2655 FieldTypes[i], /*DInfo=*/0, 2656 /*BitWidth=*/0, 2657 /*Mutable=*/false); 2658 ObjCFastEnumerationStateTypeDecl->addDecl(Field); 2659 } 2660 2661 ObjCFastEnumerationStateTypeDecl->completeDefinition(*this); 2662 } 2663 2664 return getTagDeclType(ObjCFastEnumerationStateTypeDecl); 2665} 2666 2667void ASTContext::setObjCFastEnumerationStateType(QualType T) { 2668 const RecordType *Rec = T->getAs<RecordType>(); 2669 assert(Rec && "Invalid ObjCFAstEnumerationStateType"); 2670 ObjCFastEnumerationStateTypeDecl = Rec->getDecl(); 2671} 2672 2673// This returns true if a type has been typedefed to BOOL: 2674// typedef <type> BOOL; 2675static bool isTypeTypedefedAsBOOL(QualType T) { 2676 if (const TypedefType *TT = dyn_cast<TypedefType>(T)) 2677 if (IdentifierInfo *II = TT->getDecl()->getIdentifier()) 2678 return II->isStr("BOOL"); 2679 2680 return false; 2681} 2682 2683/// getObjCEncodingTypeSize returns size of type for objective-c encoding 2684/// purpose. 2685int ASTContext::getObjCEncodingTypeSize(QualType type) { 2686 uint64_t sz = getTypeSize(type); 2687 2688 // Make all integer and enum types at least as large as an int 2689 if (sz > 0 && type->isIntegralType()) 2690 sz = std::max(sz, getTypeSize(IntTy)); 2691 // Treat arrays as pointers, since that's how they're passed in. 2692 else if (type->isArrayType()) 2693 sz = getTypeSize(VoidPtrTy); 2694 return sz / getTypeSize(CharTy); 2695} 2696 2697/// getObjCEncodingForMethodDecl - Return the encoded type for this method 2698/// declaration. 2699void ASTContext::getObjCEncodingForMethodDecl(const ObjCMethodDecl *Decl, 2700 std::string& S) { 2701 // FIXME: This is not very efficient. 2702 // Encode type qualifer, 'in', 'inout', etc. for the return type. 2703 getObjCEncodingForTypeQualifier(Decl->getObjCDeclQualifier(), S); 2704 // Encode result type. 2705 getObjCEncodingForType(Decl->getResultType(), S); 2706 // Compute size of all parameters. 2707 // Start with computing size of a pointer in number of bytes. 2708 // FIXME: There might(should) be a better way of doing this computation! 2709 SourceLocation Loc; 2710 int PtrSize = getTypeSize(VoidPtrTy) / getTypeSize(CharTy); 2711 // The first two arguments (self and _cmd) are pointers; account for 2712 // their size. 2713 int ParmOffset = 2 * PtrSize; 2714 for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 2715 E = Decl->param_end(); PI != E; ++PI) { 2716 QualType PType = (*PI)->getType(); 2717 int sz = getObjCEncodingTypeSize(PType); 2718 assert (sz > 0 && "getObjCEncodingForMethodDecl - Incomplete param type"); 2719 ParmOffset += sz; 2720 } 2721 S += llvm::utostr(ParmOffset); 2722 S += "@0:"; 2723 S += llvm::utostr(PtrSize); 2724 2725 // Argument types. 2726 ParmOffset = 2 * PtrSize; 2727 for (ObjCMethodDecl::param_iterator PI = Decl->param_begin(), 2728 E = Decl->param_end(); PI != E; ++PI) { 2729 ParmVarDecl *PVDecl = *PI; 2730 QualType PType = PVDecl->getOriginalType(); 2731 if (const ArrayType *AT = 2732 dyn_cast<ArrayType>(PType->getCanonicalTypeInternal())) { 2733 // Use array's original type only if it has known number of 2734 // elements. 2735 if (!isa<ConstantArrayType>(AT)) 2736 PType = PVDecl->getType(); 2737 } else if (PType->isFunctionType()) 2738 PType = PVDecl->getType(); 2739 // Process argument qualifiers for user supplied arguments; such as, 2740 // 'in', 'inout', etc. 2741 getObjCEncodingForTypeQualifier(PVDecl->getObjCDeclQualifier(), S); 2742 getObjCEncodingForType(PType, S); 2743 S += llvm::utostr(ParmOffset); 2744 ParmOffset += getObjCEncodingTypeSize(PType); 2745 } 2746} 2747 2748/// getObjCEncodingForPropertyDecl - Return the encoded type for this 2749/// property declaration. If non-NULL, Container must be either an 2750/// ObjCCategoryImplDecl or ObjCImplementationDecl; it should only be 2751/// NULL when getting encodings for protocol properties. 2752/// Property attributes are stored as a comma-delimited C string. The simple 2753/// attributes readonly and bycopy are encoded as single characters. The 2754/// parametrized attributes, getter=name, setter=name, and ivar=name, are 2755/// encoded as single characters, followed by an identifier. Property types 2756/// are also encoded as a parametrized attribute. The characters used to encode 2757/// these attributes are defined by the following enumeration: 2758/// @code 2759/// enum PropertyAttributes { 2760/// kPropertyReadOnly = 'R', // property is read-only. 2761/// kPropertyBycopy = 'C', // property is a copy of the value last assigned 2762/// kPropertyByref = '&', // property is a reference to the value last assigned 2763/// kPropertyDynamic = 'D', // property is dynamic 2764/// kPropertyGetter = 'G', // followed by getter selector name 2765/// kPropertySetter = 'S', // followed by setter selector name 2766/// kPropertyInstanceVariable = 'V' // followed by instance variable name 2767/// kPropertyType = 't' // followed by old-style type encoding. 2768/// kPropertyWeak = 'W' // 'weak' property 2769/// kPropertyStrong = 'P' // property GC'able 2770/// kPropertyNonAtomic = 'N' // property non-atomic 2771/// }; 2772/// @endcode 2773void ASTContext::getObjCEncodingForPropertyDecl(const ObjCPropertyDecl *PD, 2774 const Decl *Container, 2775 std::string& S) { 2776 // Collect information from the property implementation decl(s). 2777 bool Dynamic = false; 2778 ObjCPropertyImplDecl *SynthesizePID = 0; 2779 2780 // FIXME: Duplicated code due to poor abstraction. 2781 if (Container) { 2782 if (const ObjCCategoryImplDecl *CID = 2783 dyn_cast<ObjCCategoryImplDecl>(Container)) { 2784 for (ObjCCategoryImplDecl::propimpl_iterator 2785 i = CID->propimpl_begin(), e = CID->propimpl_end(); 2786 i != e; ++i) { 2787 ObjCPropertyImplDecl *PID = *i; 2788 if (PID->getPropertyDecl() == PD) { 2789 if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2790 Dynamic = true; 2791 } else { 2792 SynthesizePID = PID; 2793 } 2794 } 2795 } 2796 } else { 2797 const ObjCImplementationDecl *OID=cast<ObjCImplementationDecl>(Container); 2798 for (ObjCCategoryImplDecl::propimpl_iterator 2799 i = OID->propimpl_begin(), e = OID->propimpl_end(); 2800 i != e; ++i) { 2801 ObjCPropertyImplDecl *PID = *i; 2802 if (PID->getPropertyDecl() == PD) { 2803 if (PID->getPropertyImplementation()==ObjCPropertyImplDecl::Dynamic) { 2804 Dynamic = true; 2805 } else { 2806 SynthesizePID = PID; 2807 } 2808 } 2809 } 2810 } 2811 } 2812 2813 // FIXME: This is not very efficient. 2814 S = "T"; 2815 2816 // Encode result type. 2817 // GCC has some special rules regarding encoding of properties which 2818 // closely resembles encoding of ivars. 2819 getObjCEncodingForTypeImpl(PD->getType(), S, true, true, 0, 2820 true /* outermost type */, 2821 true /* encoding for property */); 2822 2823 if (PD->isReadOnly()) { 2824 S += ",R"; 2825 } else { 2826 switch (PD->getSetterKind()) { 2827 case ObjCPropertyDecl::Assign: break; 2828 case ObjCPropertyDecl::Copy: S += ",C"; break; 2829 case ObjCPropertyDecl::Retain: S += ",&"; break; 2830 } 2831 } 2832 2833 // It really isn't clear at all what this means, since properties 2834 // are "dynamic by default". 2835 if (Dynamic) 2836 S += ",D"; 2837 2838 if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_nonatomic) 2839 S += ",N"; 2840 2841 if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_getter) { 2842 S += ",G"; 2843 S += PD->getGetterName().getAsString(); 2844 } 2845 2846 if (PD->getPropertyAttributes() & ObjCPropertyDecl::OBJC_PR_setter) { 2847 S += ",S"; 2848 S += PD->getSetterName().getAsString(); 2849 } 2850 2851 if (SynthesizePID) { 2852 const ObjCIvarDecl *OID = SynthesizePID->getPropertyIvarDecl(); 2853 S += ",V"; 2854 S += OID->getNameAsString(); 2855 } 2856 2857 // FIXME: OBJCGC: weak & strong 2858} 2859 2860/// getLegacyIntegralTypeEncoding - 2861/// Another legacy compatibility encoding: 32-bit longs are encoded as 2862/// 'l' or 'L' , but not always. For typedefs, we need to use 2863/// 'i' or 'I' instead if encoding a struct field, or a pointer! 2864/// 2865void ASTContext::getLegacyIntegralTypeEncoding (QualType &PointeeTy) const { 2866 if (isa<TypedefType>(PointeeTy.getTypePtr())) { 2867 if (const BuiltinType *BT = PointeeTy->getAs<BuiltinType>()) { 2868 if (BT->getKind() == BuiltinType::ULong && 2869 ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2870 PointeeTy = UnsignedIntTy; 2871 else 2872 if (BT->getKind() == BuiltinType::Long && 2873 ((const_cast<ASTContext *>(this))->getIntWidth(PointeeTy) == 32)) 2874 PointeeTy = IntTy; 2875 } 2876 } 2877} 2878 2879void ASTContext::getObjCEncodingForType(QualType T, std::string& S, 2880 const FieldDecl *Field) { 2881 // We follow the behavior of gcc, expanding structures which are 2882 // directly pointed to, and expanding embedded structures. Note that 2883 // these rules are sufficient to prevent recursive encoding of the 2884 // same type. 2885 getObjCEncodingForTypeImpl(T, S, true, true, Field, 2886 true /* outermost type */); 2887} 2888 2889static void EncodeBitField(const ASTContext *Context, std::string& S, 2890 const FieldDecl *FD) { 2891 const Expr *E = FD->getBitWidth(); 2892 assert(E && "bitfield width not there - getObjCEncodingForTypeImpl"); 2893 ASTContext *Ctx = const_cast<ASTContext*>(Context); 2894 unsigned N = E->EvaluateAsInt(*Ctx).getZExtValue(); 2895 S += 'b'; 2896 S += llvm::utostr(N); 2897} 2898 2899void ASTContext::getObjCEncodingForTypeImpl(QualType T, std::string& S, 2900 bool ExpandPointedToStructures, 2901 bool ExpandStructures, 2902 const FieldDecl *FD, 2903 bool OutermostType, 2904 bool EncodingProperty) { 2905 if (const BuiltinType *BT = T->getAs<BuiltinType>()) { 2906 if (FD && FD->isBitField()) 2907 return EncodeBitField(this, S, FD); 2908 char encoding; 2909 switch (BT->getKind()) { 2910 default: assert(0 && "Unhandled builtin type kind"); 2911 case BuiltinType::Void: encoding = 'v'; break; 2912 case BuiltinType::Bool: encoding = 'B'; break; 2913 case BuiltinType::Char_U: 2914 case BuiltinType::UChar: encoding = 'C'; break; 2915 case BuiltinType::UShort: encoding = 'S'; break; 2916 case BuiltinType::UInt: encoding = 'I'; break; 2917 case BuiltinType::ULong: 2918 encoding = 2919 (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'L' : 'Q'; 2920 break; 2921 case BuiltinType::UInt128: encoding = 'T'; break; 2922 case BuiltinType::ULongLong: encoding = 'Q'; break; 2923 case BuiltinType::Char_S: 2924 case BuiltinType::SChar: encoding = 'c'; break; 2925 case BuiltinType::Short: encoding = 's'; break; 2926 case BuiltinType::Int: encoding = 'i'; break; 2927 case BuiltinType::Long: 2928 encoding = 2929 (const_cast<ASTContext *>(this))->getIntWidth(T) == 32 ? 'l' : 'q'; 2930 break; 2931 case BuiltinType::LongLong: encoding = 'q'; break; 2932 case BuiltinType::Int128: encoding = 't'; break; 2933 case BuiltinType::Float: encoding = 'f'; break; 2934 case BuiltinType::Double: encoding = 'd'; break; 2935 case BuiltinType::LongDouble: encoding = 'd'; break; 2936 } 2937 2938 S += encoding; 2939 return; 2940 } 2941 2942 if (const ComplexType *CT = T->getAs<ComplexType>()) { 2943 S += 'j'; 2944 getObjCEncodingForTypeImpl(CT->getElementType(), S, false, false, 0, false, 2945 false); 2946 return; 2947 } 2948 2949 if (const PointerType *PT = T->getAs<PointerType>()) { 2950 QualType PointeeTy = PT->getPointeeType(); 2951 bool isReadOnly = false; 2952 // For historical/compatibility reasons, the read-only qualifier of the 2953 // pointee gets emitted _before_ the '^'. The read-only qualifier of 2954 // the pointer itself gets ignored, _unless_ we are looking at a typedef! 2955 // Also, do not emit the 'r' for anything but the outermost type! 2956 if (isa<TypedefType>(T.getTypePtr())) { 2957 if (OutermostType && T.isConstQualified()) { 2958 isReadOnly = true; 2959 S += 'r'; 2960 } 2961 } else if (OutermostType) { 2962 QualType P = PointeeTy; 2963 while (P->getAs<PointerType>()) 2964 P = P->getAs<PointerType>()->getPointeeType(); 2965 if (P.isConstQualified()) { 2966 isReadOnly = true; 2967 S += 'r'; 2968 } 2969 } 2970 if (isReadOnly) { 2971 // Another legacy compatibility encoding. Some ObjC qualifier and type 2972 // combinations need to be rearranged. 2973 // Rewrite "in const" from "nr" to "rn" 2974 const char * s = S.c_str(); 2975 int len = S.length(); 2976 if (len >= 2 && s[len-2] == 'n' && s[len-1] == 'r') { 2977 std::string replace = "rn"; 2978 S.replace(S.end()-2, S.end(), replace); 2979 } 2980 } 2981 if (isObjCSelType(PointeeTy)) { 2982 S += ':'; 2983 return; 2984 } 2985 2986 if (PointeeTy->isCharType()) { 2987 // char pointer types should be encoded as '*' unless it is a 2988 // type that has been typedef'd to 'BOOL'. 2989 if (!isTypeTypedefedAsBOOL(PointeeTy)) { 2990 S += '*'; 2991 return; 2992 } 2993 } else if (const RecordType *RTy = PointeeTy->getAs<RecordType>()) { 2994 // GCC binary compat: Need to convert "struct objc_class *" to "#". 2995 if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_class")) { 2996 S += '#'; 2997 return; 2998 } 2999 // GCC binary compat: Need to convert "struct objc_object *" to "@". 3000 if (RTy->getDecl()->getIdentifier() == &Idents.get("objc_object")) { 3001 S += '@'; 3002 return; 3003 } 3004 // fall through... 3005 } 3006 S += '^'; 3007 getLegacyIntegralTypeEncoding(PointeeTy); 3008 3009 getObjCEncodingForTypeImpl(PointeeTy, S, false, ExpandPointedToStructures, 3010 NULL); 3011 return; 3012 } 3013 3014 if (const ArrayType *AT = 3015 // Ignore type qualifiers etc. 3016 dyn_cast<ArrayType>(T->getCanonicalTypeInternal())) { 3017 if (isa<IncompleteArrayType>(AT)) { 3018 // Incomplete arrays are encoded as a pointer to the array element. 3019 S += '^'; 3020 3021 getObjCEncodingForTypeImpl(AT->getElementType(), S, 3022 false, ExpandStructures, FD); 3023 } else { 3024 S += '['; 3025 3026 if (const ConstantArrayType *CAT = dyn_cast<ConstantArrayType>(AT)) 3027 S += llvm::utostr(CAT->getSize().getZExtValue()); 3028 else { 3029 //Variable length arrays are encoded as a regular array with 0 elements. 3030 assert(isa<VariableArrayType>(AT) && "Unknown array type!"); 3031 S += '0'; 3032 } 3033 3034 getObjCEncodingForTypeImpl(AT->getElementType(), S, 3035 false, ExpandStructures, FD); 3036 S += ']'; 3037 } 3038 return; 3039 } 3040 3041 if (T->getAs<FunctionType>()) { 3042 S += '?'; 3043 return; 3044 } 3045 3046 if (const RecordType *RTy = T->getAs<RecordType>()) { 3047 RecordDecl *RDecl = RTy->getDecl(); 3048 S += RDecl->isUnion() ? '(' : '{'; 3049 // Anonymous structures print as '?' 3050 if (const IdentifierInfo *II = RDecl->getIdentifier()) { 3051 S += II->getName(); 3052 } else { 3053 S += '?'; 3054 } 3055 if (ExpandStructures) { 3056 S += '='; 3057 for (RecordDecl::field_iterator Field = RDecl->field_begin(), 3058 FieldEnd = RDecl->field_end(); 3059 Field != FieldEnd; ++Field) { 3060 if (FD) { 3061 S += '"'; 3062 S += Field->getNameAsString(); 3063 S += '"'; 3064 } 3065 3066 // Special case bit-fields. 3067 if (Field->isBitField()) { 3068 getObjCEncodingForTypeImpl(Field->getType(), S, false, true, 3069 (*Field)); 3070 } else { 3071 QualType qt = Field->getType(); 3072 getLegacyIntegralTypeEncoding(qt); 3073 getObjCEncodingForTypeImpl(qt, S, false, true, 3074 FD); 3075 } 3076 } 3077 } 3078 S += RDecl->isUnion() ? ')' : '}'; 3079 return; 3080 } 3081 3082 if (T->isEnumeralType()) { 3083 if (FD && FD->isBitField()) 3084 EncodeBitField(this, S, FD); 3085 else 3086 S += 'i'; 3087 return; 3088 } 3089 3090 if (T->isBlockPointerType()) { 3091 S += "@?"; // Unlike a pointer-to-function, which is "^?". 3092 return; 3093 } 3094 3095 if (const ObjCInterfaceType *OIT = T->getAs<ObjCInterfaceType>()) { 3096 // @encode(class_name) 3097 ObjCInterfaceDecl *OI = OIT->getDecl(); 3098 S += '{'; 3099 const IdentifierInfo *II = OI->getIdentifier(); 3100 S += II->getName(); 3101 S += '='; 3102 llvm::SmallVector<FieldDecl*, 32> RecFields; 3103 CollectObjCIvars(OI, RecFields); 3104 for (unsigned i = 0, e = RecFields.size(); i != e; ++i) { 3105 if (RecFields[i]->isBitField()) 3106 getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 3107 RecFields[i]); 3108 else 3109 getObjCEncodingForTypeImpl(RecFields[i]->getType(), S, false, true, 3110 FD); 3111 } 3112 S += '}'; 3113 return; 3114 } 3115 3116 if (const ObjCObjectPointerType *OPT = T->getAs<ObjCObjectPointerType>()) { 3117 if (OPT->isObjCIdType()) { 3118 S += '@'; 3119 return; 3120 } 3121 3122 if (OPT->isObjCClassType()) { 3123 S += '#'; 3124 return; 3125 } 3126 3127 if (OPT->isObjCQualifiedIdType()) { 3128 getObjCEncodingForTypeImpl(getObjCIdType(), S, 3129 ExpandPointedToStructures, 3130 ExpandStructures, FD); 3131 if (FD || EncodingProperty) { 3132 // Note that we do extended encoding of protocol qualifer list 3133 // Only when doing ivar or property encoding. 3134 S += '"'; 3135 for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 3136 E = OPT->qual_end(); I != E; ++I) { 3137 S += '<'; 3138 S += (*I)->getNameAsString(); 3139 S += '>'; 3140 } 3141 S += '"'; 3142 } 3143 return; 3144 } 3145 3146 QualType PointeeTy = OPT->getPointeeType(); 3147 if (!EncodingProperty && 3148 isa<TypedefType>(PointeeTy.getTypePtr())) { 3149 // Another historical/compatibility reason. 3150 // We encode the underlying type which comes out as 3151 // {...}; 3152 S += '^'; 3153 getObjCEncodingForTypeImpl(PointeeTy, S, 3154 false, ExpandPointedToStructures, 3155 NULL); 3156 return; 3157 } 3158 3159 S += '@'; 3160 if (FD || EncodingProperty) { 3161 S += '"'; 3162 S += OPT->getInterfaceDecl()->getNameAsCString(); 3163 for (ObjCObjectPointerType::qual_iterator I = OPT->qual_begin(), 3164 E = OPT->qual_end(); I != E; ++I) { 3165 S += '<'; 3166 S += (*I)->getNameAsString(); 3167 S += '>'; 3168 } 3169 S += '"'; 3170 } 3171 return; 3172 } 3173 3174 assert(0 && "@encode for type not implemented!"); 3175} 3176 3177void ASTContext::getObjCEncodingForTypeQualifier(Decl::ObjCDeclQualifier QT, 3178 std::string& S) const { 3179 if (QT & Decl::OBJC_TQ_In) 3180 S += 'n'; 3181 if (QT & Decl::OBJC_TQ_Inout) 3182 S += 'N'; 3183 if (QT & Decl::OBJC_TQ_Out) 3184 S += 'o'; 3185 if (QT & Decl::OBJC_TQ_Bycopy) 3186 S += 'O'; 3187 if (QT & Decl::OBJC_TQ_Byref) 3188 S += 'R'; 3189 if (QT & Decl::OBJC_TQ_Oneway) 3190 S += 'V'; 3191} 3192 3193void ASTContext::setBuiltinVaListType(QualType T) { 3194 assert(BuiltinVaListType.isNull() && "__builtin_va_list type already set!"); 3195 3196 BuiltinVaListType = T; 3197} 3198 3199void ASTContext::setObjCIdType(QualType T) { 3200 ObjCIdTypedefType = T; 3201} 3202 3203void ASTContext::setObjCSelType(QualType T) { 3204 ObjCSelType = T; 3205 3206 const TypedefType *TT = T->getAs<TypedefType>(); 3207 if (!TT) 3208 return; 3209 TypedefDecl *TD = TT->getDecl(); 3210 3211 // typedef struct objc_selector *SEL; 3212 const PointerType *ptr = TD->getUnderlyingType()->getAs<PointerType>(); 3213 if (!ptr) 3214 return; 3215 const RecordType *rec = ptr->getPointeeType()->getAsStructureType(); 3216 if (!rec) 3217 return; 3218 SelStructType = rec; 3219} 3220 3221void ASTContext::setObjCProtoType(QualType QT) { 3222 ObjCProtoType = QT; 3223} 3224 3225void ASTContext::setObjCClassType(QualType T) { 3226 ObjCClassTypedefType = T; 3227} 3228 3229void ASTContext::setObjCConstantStringInterface(ObjCInterfaceDecl *Decl) { 3230 assert(ObjCConstantStringType.isNull() && 3231 "'NSConstantString' type already set!"); 3232 3233 ObjCConstantStringType = getObjCInterfaceType(Decl); 3234} 3235 3236/// \brief Retrieve the template name that represents a qualified 3237/// template name such as \c std::vector. 3238TemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3239 bool TemplateKeyword, 3240 TemplateDecl *Template) { 3241 llvm::FoldingSetNodeID ID; 3242 QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 3243 3244 void *InsertPos = 0; 3245 QualifiedTemplateName *QTN = 3246 QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3247 if (!QTN) { 3248 QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3249 QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3250 } 3251 3252 return TemplateName(QTN); 3253} 3254 3255/// \brief Retrieve the template name that represents a qualified 3256/// template name such as \c std::vector. 3257TemplateName ASTContext::getQualifiedTemplateName(NestedNameSpecifier *NNS, 3258 bool TemplateKeyword, 3259 OverloadedFunctionDecl *Template) { 3260 llvm::FoldingSetNodeID ID; 3261 QualifiedTemplateName::Profile(ID, NNS, TemplateKeyword, Template); 3262 3263 void *InsertPos = 0; 3264 QualifiedTemplateName *QTN = 3265 QualifiedTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3266 if (!QTN) { 3267 QTN = new (*this,4) QualifiedTemplateName(NNS, TemplateKeyword, Template); 3268 QualifiedTemplateNames.InsertNode(QTN, InsertPos); 3269 } 3270 3271 return TemplateName(QTN); 3272} 3273 3274/// \brief Retrieve the template name that represents a dependent 3275/// template name such as \c MetaFun::template apply. 3276TemplateName ASTContext::getDependentTemplateName(NestedNameSpecifier *NNS, 3277 const IdentifierInfo *Name) { 3278 assert((!NNS || NNS->isDependent()) && 3279 "Nested name specifier must be dependent"); 3280 3281 llvm::FoldingSetNodeID ID; 3282 DependentTemplateName::Profile(ID, NNS, Name); 3283 3284 void *InsertPos = 0; 3285 DependentTemplateName *QTN = 3286 DependentTemplateNames.FindNodeOrInsertPos(ID, InsertPos); 3287 3288 if (QTN) 3289 return TemplateName(QTN); 3290 3291 NestedNameSpecifier *CanonNNS = getCanonicalNestedNameSpecifier(NNS); 3292 if (CanonNNS == NNS) { 3293 QTN = new (*this,4) DependentTemplateName(NNS, Name); 3294 } else { 3295 TemplateName Canon = getDependentTemplateName(CanonNNS, Name); 3296 QTN = new (*this,4) DependentTemplateName(NNS, Name, Canon); 3297 } 3298 3299 DependentTemplateNames.InsertNode(QTN, InsertPos); 3300 return TemplateName(QTN); 3301} 3302 3303/// getFromTargetType - Given one of the integer types provided by 3304/// TargetInfo, produce the corresponding type. The unsigned @p Type 3305/// is actually a value of type @c TargetInfo::IntType. 3306QualType ASTContext::getFromTargetType(unsigned Type) const { 3307 switch (Type) { 3308 case TargetInfo::NoInt: return QualType(); 3309 case TargetInfo::SignedShort: return ShortTy; 3310 case TargetInfo::UnsignedShort: return UnsignedShortTy; 3311 case TargetInfo::SignedInt: return IntTy; 3312 case TargetInfo::UnsignedInt: return UnsignedIntTy; 3313 case TargetInfo::SignedLong: return LongTy; 3314 case TargetInfo::UnsignedLong: return UnsignedLongTy; 3315 case TargetInfo::SignedLongLong: return LongLongTy; 3316 case TargetInfo::UnsignedLongLong: return UnsignedLongLongTy; 3317 } 3318 3319 assert(false && "Unhandled TargetInfo::IntType value"); 3320 return QualType(); 3321} 3322 3323//===----------------------------------------------------------------------===// 3324// Type Predicates. 3325//===----------------------------------------------------------------------===// 3326 3327/// isObjCNSObjectType - Return true if this is an NSObject object using 3328/// NSObject attribute on a c-style pointer type. 3329/// FIXME - Make it work directly on types. 3330/// FIXME: Move to Type. 3331/// 3332bool ASTContext::isObjCNSObjectType(QualType Ty) const { 3333 if (TypedefType *TDT = dyn_cast<TypedefType>(Ty)) { 3334 if (TypedefDecl *TD = TDT->getDecl()) 3335 if (TD->getAttr<ObjCNSObjectAttr>()) 3336 return true; 3337 } 3338 return false; 3339} 3340 3341/// getObjCGCAttr - Returns one of GCNone, Weak or Strong objc's 3342/// garbage collection attribute. 3343/// 3344Qualifiers::GC ASTContext::getObjCGCAttrKind(const QualType &Ty) const { 3345 Qualifiers::GC GCAttrs = Qualifiers::GCNone; 3346 if (getLangOptions().ObjC1 && 3347 getLangOptions().getGCMode() != LangOptions::NonGC) { 3348 GCAttrs = Ty.getObjCGCAttr(); 3349 // Default behavious under objective-c's gc is for objective-c pointers 3350 // (or pointers to them) be treated as though they were declared 3351 // as __strong. 3352 if (GCAttrs == Qualifiers::GCNone) { 3353 if (Ty->isObjCObjectPointerType() || Ty->isBlockPointerType()) 3354 GCAttrs = Qualifiers::Strong; 3355 else if (Ty->isPointerType()) 3356 return getObjCGCAttrKind(Ty->getAs<PointerType>()->getPointeeType()); 3357 } 3358 // Non-pointers have none gc'able attribute regardless of the attribute 3359 // set on them. 3360 else if (!Ty->isAnyPointerType() && !Ty->isBlockPointerType()) 3361 return Qualifiers::GCNone; 3362 } 3363 return GCAttrs; 3364} 3365 3366//===----------------------------------------------------------------------===// 3367// Type Compatibility Testing 3368//===----------------------------------------------------------------------===// 3369 3370/// areCompatVectorTypes - Return true if the two specified vector types are 3371/// compatible. 3372static bool areCompatVectorTypes(const VectorType *LHS, 3373 const VectorType *RHS) { 3374 assert(LHS->isCanonical() && RHS->isCanonical()); 3375 return LHS->getElementType() == RHS->getElementType() && 3376 LHS->getNumElements() == RHS->getNumElements(); 3377} 3378 3379//===----------------------------------------------------------------------===// 3380// ObjCQualifiedIdTypesAreCompatible - Compatibility testing for qualified id's. 3381//===----------------------------------------------------------------------===// 3382 3383/// ProtocolCompatibleWithProtocol - return 'true' if 'lProto' is in the 3384/// inheritance hierarchy of 'rProto'. 3385bool ASTContext::ProtocolCompatibleWithProtocol(ObjCProtocolDecl *lProto, 3386 ObjCProtocolDecl *rProto) { 3387 if (lProto == rProto) 3388 return true; 3389 for (ObjCProtocolDecl::protocol_iterator PI = rProto->protocol_begin(), 3390 E = rProto->protocol_end(); PI != E; ++PI) 3391 if (ProtocolCompatibleWithProtocol(lProto, *PI)) 3392 return true; 3393 return false; 3394} 3395 3396/// QualifiedIdConformsQualifiedId - compare id<p,...> with id<p1,...> 3397/// return true if lhs's protocols conform to rhs's protocol; false 3398/// otherwise. 3399bool ASTContext::QualifiedIdConformsQualifiedId(QualType lhs, QualType rhs) { 3400 if (lhs->isObjCQualifiedIdType() && rhs->isObjCQualifiedIdType()) 3401 return ObjCQualifiedIdTypesAreCompatible(lhs, rhs, false); 3402 return false; 3403} 3404 3405/// ObjCQualifiedIdTypesAreCompatible - We know that one of lhs/rhs is an 3406/// ObjCQualifiedIDType. 3407bool ASTContext::ObjCQualifiedIdTypesAreCompatible(QualType lhs, QualType rhs, 3408 bool compare) { 3409 // Allow id<P..> and an 'id' or void* type in all cases. 3410 if (lhs->isVoidPointerType() || 3411 lhs->isObjCIdType() || lhs->isObjCClassType()) 3412 return true; 3413 else if (rhs->isVoidPointerType() || 3414 rhs->isObjCIdType() || rhs->isObjCClassType()) 3415 return true; 3416 3417 if (const ObjCObjectPointerType *lhsQID = lhs->getAsObjCQualifiedIdType()) { 3418 const ObjCObjectPointerType *rhsOPT = rhs->getAs<ObjCObjectPointerType>(); 3419 3420 if (!rhsOPT) return false; 3421 3422 if (rhsOPT->qual_empty()) { 3423 // If the RHS is a unqualified interface pointer "NSString*", 3424 // make sure we check the class hierarchy. 3425 if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 3426 for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 3427 E = lhsQID->qual_end(); I != E; ++I) { 3428 // when comparing an id<P> on lhs with a static type on rhs, 3429 // see if static class implements all of id's protocols, directly or 3430 // through its super class and categories. 3431 if (!rhsID->ClassImplementsProtocol(*I, true)) 3432 return false; 3433 } 3434 } 3435 // If there are no qualifiers and no interface, we have an 'id'. 3436 return true; 3437 } 3438 // Both the right and left sides have qualifiers. 3439 for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 3440 E = lhsQID->qual_end(); I != E; ++I) { 3441 ObjCProtocolDecl *lhsProto = *I; 3442 bool match = false; 3443 3444 // when comparing an id<P> on lhs with a static type on rhs, 3445 // see if static class implements all of id's protocols, directly or 3446 // through its super class and categories. 3447 for (ObjCObjectPointerType::qual_iterator J = rhsOPT->qual_begin(), 3448 E = rhsOPT->qual_end(); J != E; ++J) { 3449 ObjCProtocolDecl *rhsProto = *J; 3450 if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 3451 (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 3452 match = true; 3453 break; 3454 } 3455 } 3456 // If the RHS is a qualified interface pointer "NSString<P>*", 3457 // make sure we check the class hierarchy. 3458 if (ObjCInterfaceDecl *rhsID = rhsOPT->getInterfaceDecl()) { 3459 for (ObjCObjectPointerType::qual_iterator I = lhsQID->qual_begin(), 3460 E = lhsQID->qual_end(); I != E; ++I) { 3461 // when comparing an id<P> on lhs with a static type on rhs, 3462 // see if static class implements all of id's protocols, directly or 3463 // through its super class and categories. 3464 if (rhsID->ClassImplementsProtocol(*I, true)) { 3465 match = true; 3466 break; 3467 } 3468 } 3469 } 3470 if (!match) 3471 return false; 3472 } 3473 3474 return true; 3475 } 3476 3477 const ObjCObjectPointerType *rhsQID = rhs->getAsObjCQualifiedIdType(); 3478 assert(rhsQID && "One of the LHS/RHS should be id<x>"); 3479 3480 if (const ObjCObjectPointerType *lhsOPT = 3481 lhs->getAsObjCInterfacePointerType()) { 3482 if (lhsOPT->qual_empty()) { 3483 bool match = false; 3484 if (ObjCInterfaceDecl *lhsID = lhsOPT->getInterfaceDecl()) { 3485 for (ObjCObjectPointerType::qual_iterator I = rhsQID->qual_begin(), 3486 E = rhsQID->qual_end(); I != E; ++I) { 3487 // when comparing an id<P> on lhs with a static type on rhs, 3488 // see if static class implements all of id's protocols, directly or 3489 // through its super class and categories. 3490 if (lhsID->ClassImplementsProtocol(*I, true)) { 3491 match = true; 3492 break; 3493 } 3494 } 3495 if (!match) 3496 return false; 3497 } 3498 return true; 3499 } 3500 // Both the right and left sides have qualifiers. 3501 for (ObjCObjectPointerType::qual_iterator I = lhsOPT->qual_begin(), 3502 E = lhsOPT->qual_end(); I != E; ++I) { 3503 ObjCProtocolDecl *lhsProto = *I; 3504 bool match = false; 3505 3506 // when comparing an id<P> on lhs with a static type on rhs, 3507 // see if static class implements all of id's protocols, directly or 3508 // through its super class and categories. 3509 for (ObjCObjectPointerType::qual_iterator J = rhsQID->qual_begin(), 3510 E = rhsQID->qual_end(); J != E; ++J) { 3511 ObjCProtocolDecl *rhsProto = *J; 3512 if (ProtocolCompatibleWithProtocol(lhsProto, rhsProto) || 3513 (compare && ProtocolCompatibleWithProtocol(rhsProto, lhsProto))) { 3514 match = true; 3515 break; 3516 } 3517 } 3518 if (!match) 3519 return false; 3520 } 3521 return true; 3522 } 3523 return false; 3524} 3525 3526/// canAssignObjCInterfaces - Return true if the two interface types are 3527/// compatible for assignment from RHS to LHS. This handles validation of any 3528/// protocol qualifiers on the LHS or RHS. 3529/// 3530bool ASTContext::canAssignObjCInterfaces(const ObjCObjectPointerType *LHSOPT, 3531 const ObjCObjectPointerType *RHSOPT) { 3532 // If either type represents the built-in 'id' or 'Class' types, return true. 3533 if (LHSOPT->isObjCBuiltinType() || RHSOPT->isObjCBuiltinType()) 3534 return true; 3535 3536 if (LHSOPT->isObjCQualifiedIdType() || RHSOPT->isObjCQualifiedIdType()) 3537 return ObjCQualifiedIdTypesAreCompatible(QualType(LHSOPT,0), 3538 QualType(RHSOPT,0), 3539 false); 3540 3541 const ObjCInterfaceType* LHS = LHSOPT->getInterfaceType(); 3542 const ObjCInterfaceType* RHS = RHSOPT->getInterfaceType(); 3543 if (LHS && RHS) // We have 2 user-defined types. 3544 return canAssignObjCInterfaces(LHS, RHS); 3545 3546 return false; 3547} 3548 3549bool ASTContext::canAssignObjCInterfaces(const ObjCInterfaceType *LHS, 3550 const ObjCInterfaceType *RHS) { 3551 // Verify that the base decls are compatible: the RHS must be a subclass of 3552 // the LHS. 3553 if (!LHS->getDecl()->isSuperClassOf(RHS->getDecl())) 3554 return false; 3555 3556 // RHS must have a superset of the protocols in the LHS. If the LHS is not 3557 // protocol qualified at all, then we are good. 3558 if (LHS->getNumProtocols() == 0) 3559 return true; 3560 3561 // Okay, we know the LHS has protocol qualifiers. If the RHS doesn't, then it 3562 // isn't a superset. 3563 if (RHS->getNumProtocols() == 0) 3564 return true; // FIXME: should return false! 3565 3566 for (ObjCInterfaceType::qual_iterator LHSPI = LHS->qual_begin(), 3567 LHSPE = LHS->qual_end(); 3568 LHSPI != LHSPE; LHSPI++) { 3569 bool RHSImplementsProtocol = false; 3570 3571 // If the RHS doesn't implement the protocol on the left, the types 3572 // are incompatible. 3573 for (ObjCInterfaceType::qual_iterator RHSPI = RHS->qual_begin(), 3574 RHSPE = RHS->qual_end(); 3575 RHSPI != RHSPE; RHSPI++) { 3576 if ((*RHSPI)->lookupProtocolNamed((*LHSPI)->getIdentifier())) { 3577 RHSImplementsProtocol = true; 3578 break; 3579 } 3580 } 3581 // FIXME: For better diagnostics, consider passing back the protocol name. 3582 if (!RHSImplementsProtocol) 3583 return false; 3584 } 3585 // The RHS implements all protocols listed on the LHS. 3586 return true; 3587} 3588 3589bool ASTContext::areComparableObjCPointerTypes(QualType LHS, QualType RHS) { 3590 // get the "pointed to" types 3591 const ObjCObjectPointerType *LHSOPT = LHS->getAs<ObjCObjectPointerType>(); 3592 const ObjCObjectPointerType *RHSOPT = RHS->getAs<ObjCObjectPointerType>(); 3593 3594 if (!LHSOPT || !RHSOPT) 3595 return false; 3596 3597 return canAssignObjCInterfaces(LHSOPT, RHSOPT) || 3598 canAssignObjCInterfaces(RHSOPT, LHSOPT); 3599} 3600 3601/// typesAreCompatible - C99 6.7.3p9: For two qualified types to be compatible, 3602/// both shall have the identically qualified version of a compatible type. 3603/// C99 6.2.7p1: Two types have compatible types if their types are the 3604/// same. See 6.7.[2,3,5] for additional rules. 3605bool ASTContext::typesAreCompatible(QualType LHS, QualType RHS) { 3606 return !mergeTypes(LHS, RHS).isNull(); 3607} 3608 3609QualType ASTContext::mergeFunctionTypes(QualType lhs, QualType rhs) { 3610 const FunctionType *lbase = lhs->getAs<FunctionType>(); 3611 const FunctionType *rbase = rhs->getAs<FunctionType>(); 3612 const FunctionProtoType *lproto = dyn_cast<FunctionProtoType>(lbase); 3613 const FunctionProtoType *rproto = dyn_cast<FunctionProtoType>(rbase); 3614 bool allLTypes = true; 3615 bool allRTypes = true; 3616 3617 // Check return type 3618 QualType retType = mergeTypes(lbase->getResultType(), rbase->getResultType()); 3619 if (retType.isNull()) return QualType(); 3620 if (getCanonicalType(retType) != getCanonicalType(lbase->getResultType())) 3621 allLTypes = false; 3622 if (getCanonicalType(retType) != getCanonicalType(rbase->getResultType())) 3623 allRTypes = false; 3624 // FIXME: double check this 3625 bool NoReturn = lbase->getNoReturnAttr() || rbase->getNoReturnAttr(); 3626 if (NoReturn != lbase->getNoReturnAttr()) 3627 allLTypes = false; 3628 if (NoReturn != rbase->getNoReturnAttr()) 3629 allRTypes = false; 3630 3631 if (lproto && rproto) { // two C99 style function prototypes 3632 assert(!lproto->hasExceptionSpec() && !rproto->hasExceptionSpec() && 3633 "C++ shouldn't be here"); 3634 unsigned lproto_nargs = lproto->getNumArgs(); 3635 unsigned rproto_nargs = rproto->getNumArgs(); 3636 3637 // Compatible functions must have the same number of arguments 3638 if (lproto_nargs != rproto_nargs) 3639 return QualType(); 3640 3641 // Variadic and non-variadic functions aren't compatible 3642 if (lproto->isVariadic() != rproto->isVariadic()) 3643 return QualType(); 3644 3645 if (lproto->getTypeQuals() != rproto->getTypeQuals()) 3646 return QualType(); 3647 3648 // Check argument compatibility 3649 llvm::SmallVector<QualType, 10> types; 3650 for (unsigned i = 0; i < lproto_nargs; i++) { 3651 QualType largtype = lproto->getArgType(i).getUnqualifiedType(); 3652 QualType rargtype = rproto->getArgType(i).getUnqualifiedType(); 3653 QualType argtype = mergeTypes(largtype, rargtype); 3654 if (argtype.isNull()) return QualType(); 3655 types.push_back(argtype); 3656 if (getCanonicalType(argtype) != getCanonicalType(largtype)) 3657 allLTypes = false; 3658 if (getCanonicalType(argtype) != getCanonicalType(rargtype)) 3659 allRTypes = false; 3660 } 3661 if (allLTypes) return lhs; 3662 if (allRTypes) return rhs; 3663 return getFunctionType(retType, types.begin(), types.size(), 3664 lproto->isVariadic(), lproto->getTypeQuals(), 3665 NoReturn); 3666 } 3667 3668 if (lproto) allRTypes = false; 3669 if (rproto) allLTypes = false; 3670 3671 const FunctionProtoType *proto = lproto ? lproto : rproto; 3672 if (proto) { 3673 assert(!proto->hasExceptionSpec() && "C++ shouldn't be here"); 3674 if (proto->isVariadic()) return QualType(); 3675 // Check that the types are compatible with the types that 3676 // would result from default argument promotions (C99 6.7.5.3p15). 3677 // The only types actually affected are promotable integer 3678 // types and floats, which would be passed as a different 3679 // type depending on whether the prototype is visible. 3680 unsigned proto_nargs = proto->getNumArgs(); 3681 for (unsigned i = 0; i < proto_nargs; ++i) { 3682 QualType argTy = proto->getArgType(i); 3683 if (argTy->isPromotableIntegerType() || 3684 getCanonicalType(argTy).getUnqualifiedType() == FloatTy) 3685 return QualType(); 3686 } 3687 3688 if (allLTypes) return lhs; 3689 if (allRTypes) return rhs; 3690 return getFunctionType(retType, proto->arg_type_begin(), 3691 proto->getNumArgs(), proto->isVariadic(), 3692 proto->getTypeQuals(), NoReturn); 3693 } 3694 3695 if (allLTypes) return lhs; 3696 if (allRTypes) return rhs; 3697 return getFunctionNoProtoType(retType, NoReturn); 3698} 3699 3700QualType ASTContext::mergeTypes(QualType LHS, QualType RHS) { 3701 // C++ [expr]: If an expression initially has the type "reference to T", the 3702 // type is adjusted to "T" prior to any further analysis, the expression 3703 // designates the object or function denoted by the reference, and the 3704 // expression is an lvalue unless the reference is an rvalue reference and 3705 // the expression is a function call (possibly inside parentheses). 3706 // FIXME: C++ shouldn't be going through here! The rules are different 3707 // enough that they should be handled separately. 3708 // FIXME: Merging of lvalue and rvalue references is incorrect. C++ *really* 3709 // shouldn't be going through here! 3710 if (const ReferenceType *RT = LHS->getAs<ReferenceType>()) 3711 LHS = RT->getPointeeType(); 3712 if (const ReferenceType *RT = RHS->getAs<ReferenceType>()) 3713 RHS = RT->getPointeeType(); 3714 3715 QualType LHSCan = getCanonicalType(LHS), 3716 RHSCan = getCanonicalType(RHS); 3717 3718 // If two types are identical, they are compatible. 3719 if (LHSCan == RHSCan) 3720 return LHS; 3721 3722 // If the qualifiers are different, the types aren't compatible... mostly. 3723 Qualifiers LQuals = LHSCan.getQualifiers(); 3724 Qualifiers RQuals = RHSCan.getQualifiers(); 3725 if (LQuals != RQuals) { 3726 // If any of these qualifiers are different, we have a type 3727 // mismatch. 3728 if (LQuals.getCVRQualifiers() != RQuals.getCVRQualifiers() || 3729 LQuals.getAddressSpace() != RQuals.getAddressSpace()) 3730 return QualType(); 3731 3732 // Exactly one GC qualifier difference is allowed: __strong is 3733 // okay if the other type has no GC qualifier but is an Objective 3734 // C object pointer (i.e. implicitly strong by default). We fix 3735 // this by pretending that the unqualified type was actually 3736 // qualified __strong. 3737 Qualifiers::GC GC_L = LQuals.getObjCGCAttr(); 3738 Qualifiers::GC GC_R = RQuals.getObjCGCAttr(); 3739 assert((GC_L != GC_R) && "unequal qualifier sets had only equal elements"); 3740 3741 if (GC_L == Qualifiers::Weak || GC_R == Qualifiers::Weak) 3742 return QualType(); 3743 3744 if (GC_L == Qualifiers::Strong && RHSCan->isObjCObjectPointerType()) { 3745 return mergeTypes(LHS, getObjCGCQualType(RHS, Qualifiers::Strong)); 3746 } 3747 if (GC_R == Qualifiers::Strong && LHSCan->isObjCObjectPointerType()) { 3748 return mergeTypes(getObjCGCQualType(LHS, Qualifiers::Strong), RHS); 3749 } 3750 return QualType(); 3751 } 3752 3753 // Okay, qualifiers are equal. 3754 3755 Type::TypeClass LHSClass = LHSCan->getTypeClass(); 3756 Type::TypeClass RHSClass = RHSCan->getTypeClass(); 3757 3758 // We want to consider the two function types to be the same for these 3759 // comparisons, just force one to the other. 3760 if (LHSClass == Type::FunctionProto) LHSClass = Type::FunctionNoProto; 3761 if (RHSClass == Type::FunctionProto) RHSClass = Type::FunctionNoProto; 3762 3763 // Same as above for arrays 3764 if (LHSClass == Type::VariableArray || LHSClass == Type::IncompleteArray) 3765 LHSClass = Type::ConstantArray; 3766 if (RHSClass == Type::VariableArray || RHSClass == Type::IncompleteArray) 3767 RHSClass = Type::ConstantArray; 3768 3769 // Canonicalize ExtVector -> Vector. 3770 if (LHSClass == Type::ExtVector) LHSClass = Type::Vector; 3771 if (RHSClass == Type::ExtVector) RHSClass = Type::Vector; 3772 3773 // If the canonical type classes don't match. 3774 if (LHSClass != RHSClass) { 3775 // C99 6.7.2.2p4: Each enumerated type shall be compatible with char, 3776 // a signed integer type, or an unsigned integer type. 3777 if (const EnumType* ETy = LHS->getAs<EnumType>()) { 3778 if (ETy->getDecl()->getIntegerType() == RHSCan.getUnqualifiedType()) 3779 return RHS; 3780 } 3781 if (const EnumType* ETy = RHS->getAs<EnumType>()) { 3782 if (ETy->getDecl()->getIntegerType() == LHSCan.getUnqualifiedType()) 3783 return LHS; 3784 } 3785 3786 return QualType(); 3787 } 3788 3789 // The canonical type classes match. 3790 switch (LHSClass) { 3791#define TYPE(Class, Base) 3792#define ABSTRACT_TYPE(Class, Base) 3793#define NON_CANONICAL_TYPE(Class, Base) case Type::Class: 3794#define DEPENDENT_TYPE(Class, Base) case Type::Class: 3795#include "clang/AST/TypeNodes.def" 3796 assert(false && "Non-canonical and dependent types shouldn't get here"); 3797 return QualType(); 3798 3799 case Type::LValueReference: 3800 case Type::RValueReference: 3801 case Type::MemberPointer: 3802 assert(false && "C++ should never be in mergeTypes"); 3803 return QualType(); 3804 3805 case Type::IncompleteArray: 3806 case Type::VariableArray: 3807 case Type::FunctionProto: 3808 case Type::ExtVector: 3809 assert(false && "Types are eliminated above"); 3810 return QualType(); 3811 3812 case Type::Pointer: 3813 { 3814 // Merge two pointer types, while trying to preserve typedef info 3815 QualType LHSPointee = LHS->getAs<PointerType>()->getPointeeType(); 3816 QualType RHSPointee = RHS->getAs<PointerType>()->getPointeeType(); 3817 QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3818 if (ResultType.isNull()) return QualType(); 3819 if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3820 return LHS; 3821 if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3822 return RHS; 3823 return getPointerType(ResultType); 3824 } 3825 case Type::BlockPointer: 3826 { 3827 // Merge two block pointer types, while trying to preserve typedef info 3828 QualType LHSPointee = LHS->getAs<BlockPointerType>()->getPointeeType(); 3829 QualType RHSPointee = RHS->getAs<BlockPointerType>()->getPointeeType(); 3830 QualType ResultType = mergeTypes(LHSPointee, RHSPointee); 3831 if (ResultType.isNull()) return QualType(); 3832 if (getCanonicalType(LHSPointee) == getCanonicalType(ResultType)) 3833 return LHS; 3834 if (getCanonicalType(RHSPointee) == getCanonicalType(ResultType)) 3835 return RHS; 3836 return getBlockPointerType(ResultType); 3837 } 3838 case Type::ConstantArray: 3839 { 3840 const ConstantArrayType* LCAT = getAsConstantArrayType(LHS); 3841 const ConstantArrayType* RCAT = getAsConstantArrayType(RHS); 3842 if (LCAT && RCAT && RCAT->getSize() != LCAT->getSize()) 3843 return QualType(); 3844 3845 QualType LHSElem = getAsArrayType(LHS)->getElementType(); 3846 QualType RHSElem = getAsArrayType(RHS)->getElementType(); 3847 QualType ResultType = mergeTypes(LHSElem, RHSElem); 3848 if (ResultType.isNull()) return QualType(); 3849 if (LCAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 3850 return LHS; 3851 if (RCAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 3852 return RHS; 3853 if (LCAT) return getConstantArrayType(ResultType, LCAT->getSize(), 3854 ArrayType::ArraySizeModifier(), 0); 3855 if (RCAT) return getConstantArrayType(ResultType, RCAT->getSize(), 3856 ArrayType::ArraySizeModifier(), 0); 3857 const VariableArrayType* LVAT = getAsVariableArrayType(LHS); 3858 const VariableArrayType* RVAT = getAsVariableArrayType(RHS); 3859 if (LVAT && getCanonicalType(LHSElem) == getCanonicalType(ResultType)) 3860 return LHS; 3861 if (RVAT && getCanonicalType(RHSElem) == getCanonicalType(ResultType)) 3862 return RHS; 3863 if (LVAT) { 3864 // FIXME: This isn't correct! But tricky to implement because 3865 // the array's size has to be the size of LHS, but the type 3866 // has to be different. 3867 return LHS; 3868 } 3869 if (RVAT) { 3870 // FIXME: This isn't correct! But tricky to implement because 3871 // the array's size has to be the size of RHS, but the type 3872 // has to be different. 3873 return RHS; 3874 } 3875 if (getCanonicalType(LHSElem) == getCanonicalType(ResultType)) return LHS; 3876 if (getCanonicalType(RHSElem) == getCanonicalType(ResultType)) return RHS; 3877 return getIncompleteArrayType(ResultType, 3878 ArrayType::ArraySizeModifier(), 0); 3879 } 3880 case Type::FunctionNoProto: 3881 return mergeFunctionTypes(LHS, RHS); 3882 case Type::Record: 3883 case Type::Enum: 3884 return QualType(); 3885 case Type::Builtin: 3886 // Only exactly equal builtin types are compatible, which is tested above. 3887 return QualType(); 3888 case Type::Complex: 3889 // Distinct complex types are incompatible. 3890 return QualType(); 3891 case Type::Vector: 3892 // FIXME: The merged type should be an ExtVector! 3893 if (areCompatVectorTypes(LHS->getAs<VectorType>(), RHS->getAs<VectorType>())) 3894 return LHS; 3895 return QualType(); 3896 case Type::ObjCInterface: { 3897 // Check if the interfaces are assignment compatible. 3898 // FIXME: This should be type compatibility, e.g. whether 3899 // "LHS x; RHS x;" at global scope is legal. 3900 const ObjCInterfaceType* LHSIface = LHS->getAs<ObjCInterfaceType>(); 3901 const ObjCInterfaceType* RHSIface = RHS->getAs<ObjCInterfaceType>(); 3902 if (LHSIface && RHSIface && 3903 canAssignObjCInterfaces(LHSIface, RHSIface)) 3904 return LHS; 3905 3906 return QualType(); 3907 } 3908 case Type::ObjCObjectPointer: { 3909 if (canAssignObjCInterfaces(LHS->getAs<ObjCObjectPointerType>(), 3910 RHS->getAs<ObjCObjectPointerType>())) 3911 return LHS; 3912 3913 return QualType(); 3914 } 3915 case Type::FixedWidthInt: 3916 // Distinct fixed-width integers are not compatible. 3917 return QualType(); 3918 case Type::TemplateSpecialization: 3919 assert(false && "Dependent types have no size"); 3920 break; 3921 } 3922 3923 return QualType(); 3924} 3925 3926//===----------------------------------------------------------------------===// 3927// Integer Predicates 3928//===----------------------------------------------------------------------===// 3929 3930unsigned ASTContext::getIntWidth(QualType T) { 3931 if (T == BoolTy) 3932 return 1; 3933 if (FixedWidthIntType *FWIT = dyn_cast<FixedWidthIntType>(T)) { 3934 return FWIT->getWidth(); 3935 } 3936 // For builtin types, just use the standard type sizing method 3937 return (unsigned)getTypeSize(T); 3938} 3939 3940QualType ASTContext::getCorrespondingUnsignedType(QualType T) { 3941 assert(T->isSignedIntegerType() && "Unexpected type"); 3942 3943 // Turn <4 x signed int> -> <4 x unsigned int> 3944 if (const VectorType *VTy = T->getAs<VectorType>()) 3945 return getVectorType(getCorrespondingUnsignedType(VTy->getElementType()), 3946 VTy->getNumElements()); 3947 3948 // For enums, we return the unsigned version of the base type. 3949 if (const EnumType *ETy = T->getAs<EnumType>()) 3950 T = ETy->getDecl()->getIntegerType(); 3951 3952 const BuiltinType *BTy = T->getAs<BuiltinType>(); 3953 assert(BTy && "Unexpected signed integer type"); 3954 switch (BTy->getKind()) { 3955 case BuiltinType::Char_S: 3956 case BuiltinType::SChar: 3957 return UnsignedCharTy; 3958 case BuiltinType::Short: 3959 return UnsignedShortTy; 3960 case BuiltinType::Int: 3961 return UnsignedIntTy; 3962 case BuiltinType::Long: 3963 return UnsignedLongTy; 3964 case BuiltinType::LongLong: 3965 return UnsignedLongLongTy; 3966 case BuiltinType::Int128: 3967 return UnsignedInt128Ty; 3968 default: 3969 assert(0 && "Unexpected signed integer type"); 3970 return QualType(); 3971 } 3972} 3973 3974ExternalASTSource::~ExternalASTSource() { } 3975 3976void ExternalASTSource::PrintStats() { } 3977 3978 3979//===----------------------------------------------------------------------===// 3980// Builtin Type Computation 3981//===----------------------------------------------------------------------===// 3982 3983/// DecodeTypeFromStr - This decodes one type descriptor from Str, advancing the 3984/// pointer over the consumed characters. This returns the resultant type. 3985static QualType DecodeTypeFromStr(const char *&Str, ASTContext &Context, 3986 ASTContext::GetBuiltinTypeError &Error, 3987 bool AllowTypeModifiers = true) { 3988 // Modifiers. 3989 int HowLong = 0; 3990 bool Signed = false, Unsigned = false; 3991 3992 // Read the modifiers first. 3993 bool Done = false; 3994 while (!Done) { 3995 switch (*Str++) { 3996 default: Done = true; --Str; break; 3997 case 'S': 3998 assert(!Unsigned && "Can't use both 'S' and 'U' modifiers!"); 3999 assert(!Signed && "Can't use 'S' modifier multiple times!"); 4000 Signed = true; 4001 break; 4002 case 'U': 4003 assert(!Signed && "Can't use both 'S' and 'U' modifiers!"); 4004 assert(!Unsigned && "Can't use 'S' modifier multiple times!"); 4005 Unsigned = true; 4006 break; 4007 case 'L': 4008 assert(HowLong <= 2 && "Can't have LLLL modifier"); 4009 ++HowLong; 4010 break; 4011 } 4012 } 4013 4014 QualType Type; 4015 4016 // Read the base type. 4017 switch (*Str++) { 4018 default: assert(0 && "Unknown builtin type letter!"); 4019 case 'v': 4020 assert(HowLong == 0 && !Signed && !Unsigned && 4021 "Bad modifiers used with 'v'!"); 4022 Type = Context.VoidTy; 4023 break; 4024 case 'f': 4025 assert(HowLong == 0 && !Signed && !Unsigned && 4026 "Bad modifiers used with 'f'!"); 4027 Type = Context.FloatTy; 4028 break; 4029 case 'd': 4030 assert(HowLong < 2 && !Signed && !Unsigned && 4031 "Bad modifiers used with 'd'!"); 4032 if (HowLong) 4033 Type = Context.LongDoubleTy; 4034 else 4035 Type = Context.DoubleTy; 4036 break; 4037 case 's': 4038 assert(HowLong == 0 && "Bad modifiers used with 's'!"); 4039 if (Unsigned) 4040 Type = Context.UnsignedShortTy; 4041 else 4042 Type = Context.ShortTy; 4043 break; 4044 case 'i': 4045 if (HowLong == 3) 4046 Type = Unsigned ? Context.UnsignedInt128Ty : Context.Int128Ty; 4047 else if (HowLong == 2) 4048 Type = Unsigned ? Context.UnsignedLongLongTy : Context.LongLongTy; 4049 else if (HowLong == 1) 4050 Type = Unsigned ? Context.UnsignedLongTy : Context.LongTy; 4051 else 4052 Type = Unsigned ? Context.UnsignedIntTy : Context.IntTy; 4053 break; 4054 case 'c': 4055 assert(HowLong == 0 && "Bad modifiers used with 'c'!"); 4056 if (Signed) 4057 Type = Context.SignedCharTy; 4058 else if (Unsigned) 4059 Type = Context.UnsignedCharTy; 4060 else 4061 Type = Context.CharTy; 4062 break; 4063 case 'b': // boolean 4064 assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'b'!"); 4065 Type = Context.BoolTy; 4066 break; 4067 case 'z': // size_t. 4068 assert(HowLong == 0 && !Signed && !Unsigned && "Bad modifiers for 'z'!"); 4069 Type = Context.getSizeType(); 4070 break; 4071 case 'F': 4072 Type = Context.getCFConstantStringType(); 4073 break; 4074 case 'a': 4075 Type = Context.getBuiltinVaListType(); 4076 assert(!Type.isNull() && "builtin va list type not initialized!"); 4077 break; 4078 case 'A': 4079 // This is a "reference" to a va_list; however, what exactly 4080 // this means depends on how va_list is defined. There are two 4081 // different kinds of va_list: ones passed by value, and ones 4082 // passed by reference. An example of a by-value va_list is 4083 // x86, where va_list is a char*. An example of by-ref va_list 4084 // is x86-64, where va_list is a __va_list_tag[1]. For x86, 4085 // we want this argument to be a char*&; for x86-64, we want 4086 // it to be a __va_list_tag*. 4087 Type = Context.getBuiltinVaListType(); 4088 assert(!Type.isNull() && "builtin va list type not initialized!"); 4089 if (Type->isArrayType()) { 4090 Type = Context.getArrayDecayedType(Type); 4091 } else { 4092 Type = Context.getLValueReferenceType(Type); 4093 } 4094 break; 4095 case 'V': { 4096 char *End; 4097 unsigned NumElements = strtoul(Str, &End, 10); 4098 assert(End != Str && "Missing vector size"); 4099 4100 Str = End; 4101 4102 QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4103 Type = Context.getVectorType(ElementType, NumElements); 4104 break; 4105 } 4106 case 'X': { 4107 QualType ElementType = DecodeTypeFromStr(Str, Context, Error, false); 4108 Type = Context.getComplexType(ElementType); 4109 break; 4110 } 4111 case 'P': 4112 Type = Context.getFILEType(); 4113 if (Type.isNull()) { 4114 Error = ASTContext::GE_Missing_stdio; 4115 return QualType(); 4116 } 4117 break; 4118 case 'J': 4119 if (Signed) 4120 Type = Context.getsigjmp_bufType(); 4121 else 4122 Type = Context.getjmp_bufType(); 4123 4124 if (Type.isNull()) { 4125 Error = ASTContext::GE_Missing_setjmp; 4126 return QualType(); 4127 } 4128 break; 4129 } 4130 4131 if (!AllowTypeModifiers) 4132 return Type; 4133 4134 Done = false; 4135 while (!Done) { 4136 switch (*Str++) { 4137 default: Done = true; --Str; break; 4138 case '*': 4139 Type = Context.getPointerType(Type); 4140 break; 4141 case '&': 4142 Type = Context.getLValueReferenceType(Type); 4143 break; 4144 // FIXME: There's no way to have a built-in with an rvalue ref arg. 4145 case 'C': 4146 Type = Type.withConst(); 4147 break; 4148 } 4149 } 4150 4151 return Type; 4152} 4153 4154/// GetBuiltinType - Return the type for the specified builtin. 4155QualType ASTContext::GetBuiltinType(unsigned id, 4156 GetBuiltinTypeError &Error) { 4157 const char *TypeStr = BuiltinInfo.GetTypeString(id); 4158 4159 llvm::SmallVector<QualType, 8> ArgTypes; 4160 4161 Error = GE_None; 4162 QualType ResType = DecodeTypeFromStr(TypeStr, *this, Error); 4163 if (Error != GE_None) 4164 return QualType(); 4165 while (TypeStr[0] && TypeStr[0] != '.') { 4166 QualType Ty = DecodeTypeFromStr(TypeStr, *this, Error); 4167 if (Error != GE_None) 4168 return QualType(); 4169 4170 // Do array -> pointer decay. The builtin should use the decayed type. 4171 if (Ty->isArrayType()) 4172 Ty = getArrayDecayedType(Ty); 4173 4174 ArgTypes.push_back(Ty); 4175 } 4176 4177 assert((TypeStr[0] != '.' || TypeStr[1] == 0) && 4178 "'.' should only occur at end of builtin type list!"); 4179 4180 // handle untyped/variadic arguments "T c99Style();" or "T cppStyle(...);". 4181 if (ArgTypes.size() == 0 && TypeStr[0] == '.') 4182 return getFunctionNoProtoType(ResType); 4183 return getFunctionType(ResType, ArgTypes.data(), ArgTypes.size(), 4184 TypeStr[0] == '.', 0); 4185} 4186 4187QualType 4188ASTContext::UsualArithmeticConversionsType(QualType lhs, QualType rhs) { 4189 // Perform the usual unary conversions. We do this early so that 4190 // integral promotions to "int" can allow us to exit early, in the 4191 // lhs == rhs check. Also, for conversion purposes, we ignore any 4192 // qualifiers. For example, "const float" and "float" are 4193 // equivalent. 4194 if (lhs->isPromotableIntegerType()) 4195 lhs = getPromotedIntegerType(lhs); 4196 else 4197 lhs = lhs.getUnqualifiedType(); 4198 if (rhs->isPromotableIntegerType()) 4199 rhs = getPromotedIntegerType(rhs); 4200 else 4201 rhs = rhs.getUnqualifiedType(); 4202 4203 // If both types are identical, no conversion is needed. 4204 if (lhs == rhs) 4205 return lhs; 4206 4207 // If either side is a non-arithmetic type (e.g. a pointer), we are done. 4208 // The caller can deal with this (e.g. pointer + int). 4209 if (!lhs->isArithmeticType() || !rhs->isArithmeticType()) 4210 return lhs; 4211 4212 // At this point, we have two different arithmetic types. 4213 4214 // Handle complex types first (C99 6.3.1.8p1). 4215 if (lhs->isComplexType() || rhs->isComplexType()) { 4216 // if we have an integer operand, the result is the complex type. 4217 if (rhs->isIntegerType() || rhs->isComplexIntegerType()) { 4218 // convert the rhs to the lhs complex type. 4219 return lhs; 4220 } 4221 if (lhs->isIntegerType() || lhs->isComplexIntegerType()) { 4222 // convert the lhs to the rhs complex type. 4223 return rhs; 4224 } 4225 // This handles complex/complex, complex/float, or float/complex. 4226 // When both operands are complex, the shorter operand is converted to the 4227 // type of the longer, and that is the type of the result. This corresponds 4228 // to what is done when combining two real floating-point operands. 4229 // The fun begins when size promotion occur across type domains. 4230 // From H&S 6.3.4: When one operand is complex and the other is a real 4231 // floating-point type, the less precise type is converted, within it's 4232 // real or complex domain, to the precision of the other type. For example, 4233 // when combining a "long double" with a "double _Complex", the 4234 // "double _Complex" is promoted to "long double _Complex". 4235 int result = getFloatingTypeOrder(lhs, rhs); 4236 4237 if (result > 0) { // The left side is bigger, convert rhs. 4238 rhs = getFloatingTypeOfSizeWithinDomain(lhs, rhs); 4239 } else if (result < 0) { // The right side is bigger, convert lhs. 4240 lhs = getFloatingTypeOfSizeWithinDomain(rhs, lhs); 4241 } 4242 // At this point, lhs and rhs have the same rank/size. Now, make sure the 4243 // domains match. This is a requirement for our implementation, C99 4244 // does not require this promotion. 4245 if (lhs != rhs) { // Domains don't match, we have complex/float mix. 4246 if (lhs->isRealFloatingType()) { // handle "double, _Complex double". 4247 return rhs; 4248 } else { // handle "_Complex double, double". 4249 return lhs; 4250 } 4251 } 4252 return lhs; // The domain/size match exactly. 4253 } 4254 // Now handle "real" floating types (i.e. float, double, long double). 4255 if (lhs->isRealFloatingType() || rhs->isRealFloatingType()) { 4256 // if we have an integer operand, the result is the real floating type. 4257 if (rhs->isIntegerType()) { 4258 // convert rhs to the lhs floating point type. 4259 return lhs; 4260 } 4261 if (rhs->isComplexIntegerType()) { 4262 // convert rhs to the complex floating point type. 4263 return getComplexType(lhs); 4264 } 4265 if (lhs->isIntegerType()) { 4266 // convert lhs to the rhs floating point type. 4267 return rhs; 4268 } 4269 if (lhs->isComplexIntegerType()) { 4270 // convert lhs to the complex floating point type. 4271 return getComplexType(rhs); 4272 } 4273 // We have two real floating types, float/complex combos were handled above. 4274 // Convert the smaller operand to the bigger result. 4275 int result = getFloatingTypeOrder(lhs, rhs); 4276 if (result > 0) // convert the rhs 4277 return lhs; 4278 assert(result < 0 && "illegal float comparison"); 4279 return rhs; // convert the lhs 4280 } 4281 if (lhs->isComplexIntegerType() || rhs->isComplexIntegerType()) { 4282 // Handle GCC complex int extension. 4283 const ComplexType *lhsComplexInt = lhs->getAsComplexIntegerType(); 4284 const ComplexType *rhsComplexInt = rhs->getAsComplexIntegerType(); 4285 4286 if (lhsComplexInt && rhsComplexInt) { 4287 if (getIntegerTypeOrder(lhsComplexInt->getElementType(), 4288 rhsComplexInt->getElementType()) >= 0) 4289 return lhs; // convert the rhs 4290 return rhs; 4291 } else if (lhsComplexInt && rhs->isIntegerType()) { 4292 // convert the rhs to the lhs complex type. 4293 return lhs; 4294 } else if (rhsComplexInt && lhs->isIntegerType()) { 4295 // convert the lhs to the rhs complex type. 4296 return rhs; 4297 } 4298 } 4299 // Finally, we have two differing integer types. 4300 // The rules for this case are in C99 6.3.1.8 4301 int compare = getIntegerTypeOrder(lhs, rhs); 4302 bool lhsSigned = lhs->isSignedIntegerType(), 4303 rhsSigned = rhs->isSignedIntegerType(); 4304 QualType destType; 4305 if (lhsSigned == rhsSigned) { 4306 // Same signedness; use the higher-ranked type 4307 destType = compare >= 0 ? lhs : rhs; 4308 } else if (compare != (lhsSigned ? 1 : -1)) { 4309 // The unsigned type has greater than or equal rank to the 4310 // signed type, so use the unsigned type 4311 destType = lhsSigned ? rhs : lhs; 4312 } else if (getIntWidth(lhs) != getIntWidth(rhs)) { 4313 // The two types are different widths; if we are here, that 4314 // means the signed type is larger than the unsigned type, so 4315 // use the signed type. 4316 destType = lhsSigned ? lhs : rhs; 4317 } else { 4318 // The signed type is higher-ranked than the unsigned type, 4319 // but isn't actually any bigger (like unsigned int and long 4320 // on most 32-bit systems). Use the unsigned type corresponding 4321 // to the signed type. 4322 destType = getCorrespondingUnsignedType(lhsSigned ? lhs : rhs); 4323 } 4324 return destType; 4325} 4326