ParseCXXInlineMethods.cpp revision d7c56e1114bfe7d461786903bb720d2c6efc05a1
14cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis//===--- ParseCXXInlineMethods.cpp - C++ class inline methods parsing------===// 24cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis// 34cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis// The LLVM Compiler Infrastructure 44cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis// 54cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis// This file is distributed under the University of Illinois Open Source 64cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis// License. See LICENSE.TXT for details. 74cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis// 84cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis//===----------------------------------------------------------------------===// 94cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis// 104cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis// This file implements parsing for C++ class inline methods. 114cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis// 124cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis//===----------------------------------------------------------------------===// 134cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 14500d3297d2a21edeac4d46cbcbe21bc2352c2a28Chris Lattner#include "clang/Parse/ParseDiagnostic.h" 154cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis#include "clang/Parse/Parser.h" 1619510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 1719510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/Scope.h" 188387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet#include "clang/AST/DeclTemplate.h" 194cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidisusing namespace clang; 204cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 21d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// ParseCXXInlineMethodDef - We parsed and verified that the specified 224cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// Declarator is a well formed C++ inline method definition. Now lex its body 234cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// and store its tokens for parsing after the C++ class is complete. 245f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik VerbruggenDecl *Parser::ParseCXXInlineMethodDef(AccessSpecifier AS, 255f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen AttributeList *AccessAttrs, 265f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen ParsingDeclarator &D, 2745fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor const ParsedTemplateInfo &TemplateInfo, 2845fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor const VirtSpecifiers& VS, 2945fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor FunctionDefinitionKind DefinitionKind, 3045fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor ExprResult& Init) { 31075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(D.isFunctionDeclarator() && "This isn't a function declarator!"); 32e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt assert((Tok.is(tok::l_brace) || Tok.is(tok::colon) || Tok.is(tok::kw_try) || 33e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Tok.is(tok::equal)) && 34e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt "Current token not a '{', ':', '=', or 'try'!"); 354cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 36f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall MultiTemplateParamsArg TemplateParams(Actions, 374cd8494d9a2f99cbf38147bca80be18cdff83734Sean Hunt TemplateInfo.TemplateParams ? TemplateInfo.TemplateParams->data() : 0, 384cd8494d9a2f99cbf38147bca80be18cdff83734Sean Hunt TemplateInfo.TemplateParams ? TemplateInfo.TemplateParams->size() : 0); 394cd8494d9a2f99cbf38147bca80be18cdff83734Sean Hunt 40d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *FnD; 4145fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(DefinitionKind); 4267d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall if (D.getDeclSpec().isFriendSpecified()) 432c712f50cd56eaf3662989b556e9c6b1e8fcd11aKaelyn Uhrain FnD = Actions.ActOnFriendFunctionDecl(getCurScope(), D, 444cd8494d9a2f99cbf38147bca80be18cdff83734Sean Hunt move(TemplateParams)); 45147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor else { 4623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor FnD = Actions.ActOnCXXMemberDeclarator(getCurScope(), AS, D, 4769a87357310260c4b2c5dce2cdcd10c3fd3a0a58Anders Carlsson move(TemplateParams), 0, 48a2b4e5d9292688bc67b583592918dbeecae31ea3Douglas Gregor VS, /*HasDeferredInit=*/false); 49147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor if (FnD) { 505f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen Actions.ProcessDeclAttributeList(getCurScope(), FnD, AccessAttrs, 515f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen false, true); 52147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor bool TypeSpecContainsAuto 53147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor = D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto; 54a2b4e5d9292688bc67b583592918dbeecae31ea3Douglas Gregor if (Init.isUsable()) 55147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor Actions.AddInitializerToDecl(FnD, Init.get(), false, 56147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor TypeSpecContainsAuto); 57147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor else 58147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor Actions.ActOnUninitializedDecl(FnD, TypeSpecContainsAuto); 59147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor } 604867347e82648d3baf09524b98b09c297a5a198fNico Weber } 614cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 62d33133cdc1af466f9c276249b2621be03867888bEli Friedman HandleMemberFunctionDefaultArgs(D, FnD); 63d33133cdc1af466f9c276249b2621be03867888bEli Friedman 64eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall D.complete(FnD); 65eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 66e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Tok.is(tok::equal)) { 67e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt ConsumeToken(); 68e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 69c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith if (!FnD) { 70c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith SkipUntil(tok::semi); 71c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith return 0; 72c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith } 73c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith 74e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt bool Delete = false; 75e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt SourceLocation KWLoc; 76e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Tok.is(tok::kw_delete)) { 777fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok, getLang().CPlusPlus0x ? 787fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_deleted_function : 79d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_deleted_function); 80e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 81e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt KWLoc = ConsumeToken(); 82e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Actions.SetDeclDeleted(FnD, KWLoc); 83e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Delete = true; 84e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } else if (Tok.is(tok::kw_default)) { 857fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok, getLang().CPlusPlus0x ? 867fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_defaulted_function : 87d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_defaulted_function); 88e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 89e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt KWLoc = ConsumeToken(); 90e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Actions.SetDeclDefaulted(FnD, KWLoc); 91e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } else { 92e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 93e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 94e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 95e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Tok.is(tok::comma)) { 96e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 97e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt << Delete; 98e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt SkipUntil(tok::semi); 99e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } else { 100e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 101e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Delete ? "delete" : "default", tok::semi); 102e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 103e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 104e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return FnD; 105e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 106e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 1078387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, if we are within a class template 1088387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // or if we are about to parse function member template then consume 1098387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // the tokens and store them for parsing at the end of the translation unit. 1108387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (getLang().DelayedTemplateParsing && 1118387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ((Actions.CurContext->isDependentContext() || 1128387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind != ParsedTemplateInfo::NonTemplate) && 1139d38dbc9a16017fff3e34b7876a6590413a7d56bFrancois Pichet !Actions.IsInsideALocalClassWithinATemplateFunction())) { 1148387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1158387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FnD) { 116e1fca502e7f1349e9b4520a4ca9a02413bcf2b14Francois Pichet LateParsedTemplatedFunction *LPT = new LateParsedTemplatedFunction(FnD); 1178387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1188387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FD = 0; 1198387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(FnD)) 1208387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FD = FunTmpl->getTemplatedDecl(); 1218387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 1228387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FD = cast<FunctionDecl>(FnD); 12381542fd91bd5e7e65ebae3eaad117bdaeaf7d737Chandler Carruth Actions.CheckForFunctionRedefinition(FD); 1248387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1258387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplateMap[FD] = LPT; 1268387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.MarkAsLateParsedTemplate(FD); 1278387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(LPT->Toks); 1288387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } else { 1298387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet CachedTokens Toks; 1308387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(Toks); 1318387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 1328387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1338387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return FnD; 1348387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 1358387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1364cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Consume the tokens and store them for later parsing. 1374cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 138d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor LexedMethod* LM = new LexedMethod(this, FnD); 139d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor getCurrentClass().LateParsedDeclarations.push_back(LM); 140d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor LM->TemplateScope = getCurScope()->isTemplateParamScope(); 141d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor CachedTokens &Toks = LM->Toks; 1424cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 143d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl tok::TokenKind kind = Tok.getKind(); 144a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // Consume everything up to (and including) the left brace of the 145a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // function body. 146a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl if (ConsumeAndStoreFunctionPrologue(Toks)) { 147a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // We didn't find the left-brace we expected after the 148a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // constructor initializer. 149a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl if (Tok.is(tok::semi)) { 150a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // We found a semicolon; complain, consume the semicolon, and 151a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // don't try to parse this method later. 152a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl Diag(Tok.getLocation(), diag::err_expected_lbrace); 153a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl ConsumeAnyToken(); 154a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl delete getCurrentClass().LateParsedDeclarations.back(); 155a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl getCurrentClass().LateParsedDeclarations.pop_back(); 156a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl return FnD; 1573f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor } 1587ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor } else { 159a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // Consume everything up to (and including) the matching right brace. 160a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl ConsumeAndStoreUntil(tok::r_brace, Toks, /*StopAtSemi=*/false); 1617ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor } 1624cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 163d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl // If we're in a function-try-block, we need to store all the catch blocks. 164d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (kind == tok::kw_try) { 165d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl while (Tok.is(tok::kw_catch)) { 16614b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis ConsumeAndStoreUntil(tok::l_brace, Toks, /*StopAtSemi=*/false); 16714b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis ConsumeAndStoreUntil(tok::r_brace, Toks, /*StopAtSemi=*/false); 168d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl } 169d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl } 170d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 17187f106462ce49a4a9b812b9de92aadd4e54567bdDouglas Gregor 17287f106462ce49a4a9b812b9de92aadd4e54567bdDouglas Gregor if (!FnD) { 17387f106462ce49a4a9b812b9de92aadd4e54567bdDouglas Gregor // If semantic analysis could not build a function declaration, 17487f106462ce49a4a9b812b9de92aadd4e54567bdDouglas Gregor // just throw away the late-parsed declaration. 17587f106462ce49a4a9b812b9de92aadd4e54567bdDouglas Gregor delete getCurrentClass().LateParsedDeclarations.back(); 17687f106462ce49a4a9b812b9de92aadd4e54567bdDouglas Gregor getCurrentClass().LateParsedDeclarations.pop_back(); 17787f106462ce49a4a9b812b9de92aadd4e54567bdDouglas Gregor } 17887f106462ce49a4a9b812b9de92aadd4e54567bdDouglas Gregor 1794cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return FnD; 1804cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 1814cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 1827a614d8380297fcd2bc23986241905d97222948cRichard Smith/// ParseCXXNonStaticMemberInitializer - We parsed and verified that the 1837a614d8380297fcd2bc23986241905d97222948cRichard Smith/// specified Declarator is a well formed C++ non-static data member 1847a614d8380297fcd2bc23986241905d97222948cRichard Smith/// declaration. Now lex its initializer and store its tokens for parsing 1857a614d8380297fcd2bc23986241905d97222948cRichard Smith/// after the class is complete. 1867a614d8380297fcd2bc23986241905d97222948cRichard Smithvoid Parser::ParseCXXNonStaticMemberInitializer(Decl *VarD) { 1877a614d8380297fcd2bc23986241905d97222948cRichard Smith assert((Tok.is(tok::l_brace) || Tok.is(tok::equal)) && 1887a614d8380297fcd2bc23986241905d97222948cRichard Smith "Current token not a '{' or '='!"); 1897a614d8380297fcd2bc23986241905d97222948cRichard Smith 1907a614d8380297fcd2bc23986241905d97222948cRichard Smith LateParsedMemberInitializer *MI = 1917a614d8380297fcd2bc23986241905d97222948cRichard Smith new LateParsedMemberInitializer(this, VarD); 1927a614d8380297fcd2bc23986241905d97222948cRichard Smith getCurrentClass().LateParsedDeclarations.push_back(MI); 1937a614d8380297fcd2bc23986241905d97222948cRichard Smith CachedTokens &Toks = MI->Toks; 1947a614d8380297fcd2bc23986241905d97222948cRichard Smith 1957a614d8380297fcd2bc23986241905d97222948cRichard Smith tok::TokenKind kind = Tok.getKind(); 1967a614d8380297fcd2bc23986241905d97222948cRichard Smith if (kind == tok::equal) { 1977a614d8380297fcd2bc23986241905d97222948cRichard Smith Toks.push_back(Tok); 1987a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeAnyToken(); 1997a614d8380297fcd2bc23986241905d97222948cRichard Smith } 2007a614d8380297fcd2bc23986241905d97222948cRichard Smith 2017a614d8380297fcd2bc23986241905d97222948cRichard Smith if (kind == tok::l_brace) { 2027a614d8380297fcd2bc23986241905d97222948cRichard Smith // Begin by storing the '{' token. 2037a614d8380297fcd2bc23986241905d97222948cRichard Smith Toks.push_back(Tok); 2047a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeBrace(); 2057a614d8380297fcd2bc23986241905d97222948cRichard Smith 2067a614d8380297fcd2bc23986241905d97222948cRichard Smith // Consume everything up to (and including) the matching right brace. 2077a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeAndStoreUntil(tok::r_brace, Toks, /*StopAtSemi=*/true); 2087a614d8380297fcd2bc23986241905d97222948cRichard Smith } else { 2097a614d8380297fcd2bc23986241905d97222948cRichard Smith // Consume everything up to (but excluding) the comma or semicolon. 2107a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeAndStoreUntil(tok::comma, Toks, /*StopAtSemi=*/true, 2117a614d8380297fcd2bc23986241905d97222948cRichard Smith /*ConsumeFinalToken=*/false); 2127a614d8380297fcd2bc23986241905d97222948cRichard Smith } 2137a614d8380297fcd2bc23986241905d97222948cRichard Smith 2147a614d8380297fcd2bc23986241905d97222948cRichard Smith // Store an artificial EOF token to ensure that we don't run off the end of 2157a614d8380297fcd2bc23986241905d97222948cRichard Smith // the initializer when we come to parse it. 2167a614d8380297fcd2bc23986241905d97222948cRichard Smith Token Eof; 2177a614d8380297fcd2bc23986241905d97222948cRichard Smith Eof.startToken(); 2187a614d8380297fcd2bc23986241905d97222948cRichard Smith Eof.setKind(tok::eof); 2197a614d8380297fcd2bc23986241905d97222948cRichard Smith Eof.setLocation(Tok.getLocation()); 2207a614d8380297fcd2bc23986241905d97222948cRichard Smith Toks.push_back(Eof); 2217a614d8380297fcd2bc23986241905d97222948cRichard Smith} 2227a614d8380297fcd2bc23986241905d97222948cRichard Smith 223d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas GregorParser::LateParsedDeclaration::~LateParsedDeclaration() {} 224d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregorvoid Parser::LateParsedDeclaration::ParseLexedMethodDeclarations() {} 2257a614d8380297fcd2bc23986241905d97222948cRichard Smithvoid Parser::LateParsedDeclaration::ParseLexedMemberInitializers() {} 226d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregorvoid Parser::LateParsedDeclaration::ParseLexedMethodDefs() {} 227d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 228d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas GregorParser::LateParsedClass::LateParsedClass(Parser *P, ParsingClass *C) 229d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor : Self(P), Class(C) {} 230d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 231d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas GregorParser::LateParsedClass::~LateParsedClass() { 232d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Self->DeallocateParsedClasses(Class); 233d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor} 234d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 235d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregorvoid Parser::LateParsedClass::ParseLexedMethodDeclarations() { 236d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Self->ParseLexedMethodDeclarations(*Class); 237d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor} 238d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 2397a614d8380297fcd2bc23986241905d97222948cRichard Smithvoid Parser::LateParsedClass::ParseLexedMemberInitializers() { 2407a614d8380297fcd2bc23986241905d97222948cRichard Smith Self->ParseLexedMemberInitializers(*Class); 2417a614d8380297fcd2bc23986241905d97222948cRichard Smith} 2427a614d8380297fcd2bc23986241905d97222948cRichard Smith 243d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregorvoid Parser::LateParsedClass::ParseLexedMethodDefs() { 244d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Self->ParseLexedMethodDefs(*Class); 245d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor} 246d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 247d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregorvoid Parser::LateParsedMethodDeclaration::ParseLexedMethodDeclarations() { 248d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Self->ParseLexedMethodDeclaration(*this); 249d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor} 250d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 251d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregorvoid Parser::LexedMethod::ParseLexedMethodDefs() { 252d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Self->ParseLexedMethodDef(*this); 253d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor} 254d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 2557a614d8380297fcd2bc23986241905d97222948cRichard Smithvoid Parser::LateParsedMemberInitializer::ParseLexedMemberInitializers() { 2567a614d8380297fcd2bc23986241905d97222948cRichard Smith Self->ParseLexedMemberInitializer(*this); 2577a614d8380297fcd2bc23986241905d97222948cRichard Smith} 2587a614d8380297fcd2bc23986241905d97222948cRichard Smith 25972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// ParseLexedMethodDeclarations - We finished parsing the member 26072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// specification of a top (non-nested) C++ class. Now go over the 26172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// stack of method declarations with some parts for which parsing was 26272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// delayed (such as default arguments) and parse them. 2636569d68745c8213709740337d2be52b031384f58Douglas Gregorvoid Parser::ParseLexedMethodDeclarations(ParsingClass &Class) { 2646569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasTemplateScope = !Class.TopLevelClass && Class.TemplateScope; 265d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseScope ClassTemplateScope(this, Scope::TemplateParamScope, HasTemplateScope); 2666569d68745c8213709740337d2be52b031384f58Douglas Gregor if (HasTemplateScope) 26723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnReenterTemplateScope(getCurScope(), Class.TagOrTemplate); 2686569d68745c8213709740337d2be52b031384f58Douglas Gregor 2697a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall // The current scope is still active if we're the top-level class. 2707a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall // Otherwise we'll need to push and enter a new scope. 2716569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasClassScope = !Class.TopLevelClass; 2724cd8494d9a2f99cbf38147bca80be18cdff83734Sean Hunt ParseScope ClassScope(this, Scope::ClassScope|Scope::DeclScope, 2734cd8494d9a2f99cbf38147bca80be18cdff83734Sean Hunt HasClassScope); 2747a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall if (HasClassScope) 27523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartDelayedMemberDeclarations(getCurScope(), Class.TagOrTemplate); 2766569d68745c8213709740337d2be52b031384f58Douglas Gregor 277d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor for (size_t i = 0; i < Class.LateParsedDeclarations.size(); ++i) { 278d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Class.LateParsedDeclarations[i]->ParseLexedMethodDeclarations(); 279d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } 28072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 281d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (HasClassScope) 282d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnFinishDelayedMemberDeclarations(getCurScope(), Class.TagOrTemplate); 283d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor} 2847fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis 285d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregorvoid Parser::ParseLexedMethodDeclaration(LateParsedMethodDeclaration &LM) { 286d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // If this is a member template, introduce the template parameter scope. 287d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseScope TemplateScope(this, Scope::TemplateParamScope, LM.TemplateScope); 288d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (LM.TemplateScope) 289d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnReenterTemplateScope(getCurScope(), LM.Method); 290d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 291d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Start the delayed C++ method declaration 292d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnStartDelayedCXXMethodDeclaration(getCurScope(), LM.Method); 293d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 294d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Introduce the parameters into scope and parse their default 295d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // arguments. 296d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseScope PrototypeScope(this, 297d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Scope::FunctionPrototypeScope|Scope::DeclScope); 298d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor for (unsigned I = 0, N = LM.DefaultArgs.size(); I != N; ++I) { 299d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Introduce the parameter into scope. 300d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnDelayedCXXMethodParameter(getCurScope(), LM.DefaultArgs[I].Param); 301d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 302d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (CachedTokens *Toks = LM.DefaultArgs[I].Toks) { 303d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Save the current token position. 304d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor SourceLocation origLoc = Tok.getLocation(); 305d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 306d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Parse the default argument from its saved token stream. 307d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Toks->push_back(Tok); // So that the current token doesn't get lost 308d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor PP.EnterTokenStream(&Toks->front(), Toks->size(), true, false); 309d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 310d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Consume the previously-pushed token. 311d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ConsumeAnyToken(); 312d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 313d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Consume the '='. 314d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert(Tok.is(tok::equal) && "Default argument not starting with '='"); 315d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor SourceLocation EqualLoc = ConsumeToken(); 316d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 317d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // The argument isn't actually potentially evaluated unless it is 318d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // used. 319d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor EnterExpressionEvaluationContext Eval(Actions, 320d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Sema::PotentiallyEvaluatedIfUsed); 321d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 322d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ExprResult DefArgResult(ParseAssignmentExpression()); 323d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (DefArgResult.isInvalid()) 324d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnParamDefaultArgumentError(LM.DefaultArgs[I].Param); 325d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor else { 326d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (Tok.is(tok::cxx_defaultarg_end)) 327d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ConsumeToken(); 328d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor else 329d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Diag(Tok.getLocation(), diag::err_default_arg_unparsed); 330d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnParamDefaultArgument(LM.DefaultArgs[I].Param, EqualLoc, 331d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor DefArgResult.take()); 332d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } 33372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 334d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert(!PP.getSourceManager().isBeforeInTranslationUnit(origLoc, 335d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Tok.getLocation()) && 336d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor "ParseAssignmentExpression went over the default arg tokens!"); 337d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // There could be leftover tokens (e.g. because of an error). 338d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Skip through until we reach the original token position. 339d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor while (Tok.getLocation() != origLoc && Tok.isNot(tok::eof)) 34072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAnyToken(); 34172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 342d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor delete Toks; 343d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor LM.DefaultArgs[I].Toks = 0; 34472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 34572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 346d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor PrototypeScope.Exit(); 3476569d68745c8213709740337d2be52b031384f58Douglas Gregor 348d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Finish the delayed C++ method declaration. 349d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnFinishDelayedCXXMethodDeclaration(getCurScope(), LM.Method); 35072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor} 35172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 3524cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseLexedMethodDefs - We finished parsing the member specification of a top 3534cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// (non-nested) C++ class. Now go over the stack of lexed methods that were 3544cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// collected during its parsing and parse them all. 3556569d68745c8213709740337d2be52b031384f58Douglas Gregorvoid Parser::ParseLexedMethodDefs(ParsingClass &Class) { 3566569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasTemplateScope = !Class.TopLevelClass && Class.TemplateScope; 357d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseScope ClassTemplateScope(this, Scope::TemplateParamScope, HasTemplateScope); 3586569d68745c8213709740337d2be52b031384f58Douglas Gregor if (HasTemplateScope) 35923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnReenterTemplateScope(getCurScope(), Class.TagOrTemplate); 3606569d68745c8213709740337d2be52b031384f58Douglas Gregor 3616569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasClassScope = !Class.TopLevelClass; 3626569d68745c8213709740337d2be52b031384f58Douglas Gregor ParseScope ClassScope(this, Scope::ClassScope|Scope::DeclScope, 3636569d68745c8213709740337d2be52b031384f58Douglas Gregor HasClassScope); 3646569d68745c8213709740337d2be52b031384f58Douglas Gregor 365d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor for (size_t i = 0; i < Class.LateParsedDeclarations.size(); ++i) { 366d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Class.LateParsedDeclarations[i]->ParseLexedMethodDefs(); 367d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } 368d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor} 3694cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 370d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregorvoid Parser::ParseLexedMethodDef(LexedMethod &LM) { 371d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // If this is a member template, introduce the template parameter scope. 372d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseScope TemplateScope(this, Scope::TemplateParamScope, LM.TemplateScope); 373d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (LM.TemplateScope) 374d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnReenterTemplateScope(getCurScope(), LM.D); 375d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 376d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Save the current token position. 377d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor SourceLocation origLoc = Tok.getLocation(); 378d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 379d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert(!LM.Toks.empty() && "Empty body!"); 380d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Append the current token at the end of the new token stream so that it 381d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // doesn't get lost. 382d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor LM.Toks.push_back(Tok); 383d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor PP.EnterTokenStream(LM.Toks.data(), LM.Toks.size(), true, false); 384d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 385d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Consume the previously pushed token. 386d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ConsumeAnyToken(); 387d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert((Tok.is(tok::l_brace) || Tok.is(tok::colon) || Tok.is(tok::kw_try)) 388d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor && "Inline method not starting with '{', ':' or 'try'"); 389d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 390d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Parse the method body. Function body parsing code is similar enough 391d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // to be re-used for method bodies as well. 392d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseScope FnScope(this, Scope::FnScope|Scope::DeclScope); 393d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnStartOfFunctionDef(getCurScope(), LM.D); 394d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 395d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (Tok.is(tok::kw_try)) { 396c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor ParseFunctionTryBlock(LM.D, FnScope); 397d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert(!PP.getSourceManager().isBeforeInTranslationUnit(origLoc, 398d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Tok.getLocation()) && 399d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor "ParseFunctionTryBlock went over the cached tokens!"); 400d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // There could be leftover tokens (e.g. because of an error). 401d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Skip through until we reach the original token position. 402d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor while (Tok.getLocation() != origLoc && Tok.isNot(tok::eof)) 403d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ConsumeAnyToken(); 404d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor return; 405d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } 406d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (Tok.is(tok::colon)) { 407d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseConstructorInitializer(LM.D); 4084cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 409d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Error recovery. 410d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (!Tok.is(tok::l_brace)) { 411c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor FnScope.Exit(); 412d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnFinishFunctionBody(LM.D, 0); 41310904527359605a76561a49769a2199351a072d8Matt Beaumont-Gay while (Tok.getLocation() != origLoc && Tok.isNot(tok::eof)) 41410904527359605a76561a49769a2199351a072d8Matt Beaumont-Gay ConsumeAnyToken(); 415d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor return; 416d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } 417d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } else 418d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnDefaultCtorInitializers(LM.D); 419d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 420c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor ParseFunctionStatementBody(LM.D, FnScope); 421d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 422d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (Tok.getLocation() != origLoc) { 423d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Due to parsing error, we either went over the cached tokens or 424d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // there are still cached tokens left. If it's the latter case skip the 425d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // leftover tokens. 426d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Since this is an uncommon situation that should be avoided, use the 427d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // expensive isBeforeInTranslationUnit call. 428d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (PP.getSourceManager().isBeforeInTranslationUnit(Tok.getLocation(), 429d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor origLoc)) 4308f9359f5ae1227f3b489d1d261225d8180b64ed3Argyrios Kyrtzidis while (Tok.getLocation() != origLoc && Tok.isNot(tok::eof)) 4317558cd00a5ac620990174f3cba86aea4bd9a000aArgyrios Kyrtzidis ConsumeAnyToken(); 4327a614d8380297fcd2bc23986241905d97222948cRichard Smith } 4337a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4347a614d8380297fcd2bc23986241905d97222948cRichard Smith 4357a614d8380297fcd2bc23986241905d97222948cRichard Smith/// ParseLexedMemberInitializers - We finished parsing the member specification 4367a614d8380297fcd2bc23986241905d97222948cRichard Smith/// of a top (non-nested) C++ class. Now go over the stack of lexed data member 4377a614d8380297fcd2bc23986241905d97222948cRichard Smith/// initializers that were collected during its parsing and parse them all. 4387a614d8380297fcd2bc23986241905d97222948cRichard Smithvoid Parser::ParseLexedMemberInitializers(ParsingClass &Class) { 4397a614d8380297fcd2bc23986241905d97222948cRichard Smith bool HasTemplateScope = !Class.TopLevelClass && Class.TemplateScope; 4407a614d8380297fcd2bc23986241905d97222948cRichard Smith ParseScope ClassTemplateScope(this, Scope::TemplateParamScope, 4417a614d8380297fcd2bc23986241905d97222948cRichard Smith HasTemplateScope); 4427a614d8380297fcd2bc23986241905d97222948cRichard Smith if (HasTemplateScope) 4437a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnReenterTemplateScope(getCurScope(), Class.TagOrTemplate); 4447a614d8380297fcd2bc23986241905d97222948cRichard Smith 4457a614d8380297fcd2bc23986241905d97222948cRichard Smith // Set or update the scope flags to include Scope::ThisScope. 4467a614d8380297fcd2bc23986241905d97222948cRichard Smith bool AlreadyHasClassScope = Class.TopLevelClass; 4477a614d8380297fcd2bc23986241905d97222948cRichard Smith unsigned ScopeFlags = Scope::ClassScope|Scope::DeclScope|Scope::ThisScope; 4487a614d8380297fcd2bc23986241905d97222948cRichard Smith ParseScope ClassScope(this, ScopeFlags, !AlreadyHasClassScope); 4497a614d8380297fcd2bc23986241905d97222948cRichard Smith ParseScopeFlags ClassScopeFlags(this, ScopeFlags, AlreadyHasClassScope); 4507558cd00a5ac620990174f3cba86aea4bd9a000aArgyrios Kyrtzidis 4517a614d8380297fcd2bc23986241905d97222948cRichard Smith if (!AlreadyHasClassScope) 4527a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnStartDelayedMemberDeclarations(getCurScope(), 4537a614d8380297fcd2bc23986241905d97222948cRichard Smith Class.TagOrTemplate); 4547a614d8380297fcd2bc23986241905d97222948cRichard Smith 4557a614d8380297fcd2bc23986241905d97222948cRichard Smith for (size_t i = 0; i < Class.LateParsedDeclarations.size(); ++i) { 4567a614d8380297fcd2bc23986241905d97222948cRichard Smith Class.LateParsedDeclarations[i]->ParseLexedMemberInitializers(); 4574cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 4587a614d8380297fcd2bc23986241905d97222948cRichard Smith 4597a614d8380297fcd2bc23986241905d97222948cRichard Smith if (!AlreadyHasClassScope) 4607a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnFinishDelayedMemberDeclarations(getCurScope(), 4617a614d8380297fcd2bc23986241905d97222948cRichard Smith Class.TagOrTemplate); 4627a614d8380297fcd2bc23986241905d97222948cRichard Smith 4637a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnFinishDelayedMemberInitializers(Class.TagOrTemplate); 4647a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4657a614d8380297fcd2bc23986241905d97222948cRichard Smith 4667a614d8380297fcd2bc23986241905d97222948cRichard Smithvoid Parser::ParseLexedMemberInitializer(LateParsedMemberInitializer &MI) { 4671991b7139a92d73420336690a870f049e88cfad6Richard Smith if (!MI.Field || MI.Field->isInvalidDecl()) 4687a614d8380297fcd2bc23986241905d97222948cRichard Smith return; 4697a614d8380297fcd2bc23986241905d97222948cRichard Smith 4707a614d8380297fcd2bc23986241905d97222948cRichard Smith // Append the current token at the end of the new token stream so that it 4717a614d8380297fcd2bc23986241905d97222948cRichard Smith // doesn't get lost. 4727a614d8380297fcd2bc23986241905d97222948cRichard Smith MI.Toks.push_back(Tok); 4737a614d8380297fcd2bc23986241905d97222948cRichard Smith PP.EnterTokenStream(MI.Toks.data(), MI.Toks.size(), true, false); 4747a614d8380297fcd2bc23986241905d97222948cRichard Smith 4757a614d8380297fcd2bc23986241905d97222948cRichard Smith // Consume the previously pushed token. 4767a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeAnyToken(); 4777a614d8380297fcd2bc23986241905d97222948cRichard Smith 4787a614d8380297fcd2bc23986241905d97222948cRichard Smith SourceLocation EqualLoc; 4797a614d8380297fcd2bc23986241905d97222948cRichard Smith ExprResult Init = ParseCXXMemberInitializer(/*IsFunction=*/false, EqualLoc); 4807a614d8380297fcd2bc23986241905d97222948cRichard Smith 4817a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnCXXInClassMemberInitializer(MI.Field, EqualLoc, Init.release()); 4827a614d8380297fcd2bc23986241905d97222948cRichard Smith 4837a614d8380297fcd2bc23986241905d97222948cRichard Smith // The next token should be our artificial terminating EOF token. 4847a614d8380297fcd2bc23986241905d97222948cRichard Smith if (Tok.isNot(tok::eof)) { 4857a614d8380297fcd2bc23986241905d97222948cRichard Smith SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 4867a614d8380297fcd2bc23986241905d97222948cRichard Smith if (!EndLoc.isValid()) 4877a614d8380297fcd2bc23986241905d97222948cRichard Smith EndLoc = Tok.getLocation(); 4887a614d8380297fcd2bc23986241905d97222948cRichard Smith // No fixit; we can't recover as if there were a semicolon here. 4897a614d8380297fcd2bc23986241905d97222948cRichard Smith Diag(EndLoc, diag::err_expected_semi_decl_list); 4907a614d8380297fcd2bc23986241905d97222948cRichard Smith 4917a614d8380297fcd2bc23986241905d97222948cRichard Smith // Consume tokens until we hit the artificial EOF. 4927a614d8380297fcd2bc23986241905d97222948cRichard Smith while (Tok.isNot(tok::eof)) 4937a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeAnyToken(); 4947a614d8380297fcd2bc23986241905d97222948cRichard Smith } 4957a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeAnyToken(); 4964cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 4974cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4984cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ConsumeAndStoreUntil - Consume and store the token at the passed token 49972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// container until the token 'T' is reached (which gets 5001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// consumed/stored too, if ConsumeFinalToken). 50114b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis/// If StopAtSemi is true, then we will stop early at a ';' character. 50272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// Returns true if token 'T1' or 'T2' was found. 5034cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// NOTE: This is a specialized version of Parser::SkipUntil. 50472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregorbool Parser::ConsumeAndStoreUntil(tok::TokenKind T1, tok::TokenKind T2, 50572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens &Toks, 50614b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis bool StopAtSemi, bool ConsumeFinalToken) { 5074cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // We always want this function to consume at least one token if the first 5084cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // token isn't T and if not at EOF. 5094cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis bool isFirstTokenConsumed = true; 5104cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis while (1) { 5114cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // If we found one of the tokens, stop and return true. 51272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor if (Tok.is(T1) || Tok.is(T2)) { 51372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor if (ConsumeFinalToken) { 51472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Toks.push_back(Tok); 51572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAnyToken(); 51672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 5174cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return true; 5184cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 5194cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5204cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis switch (Tok.getKind()) { 5214cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::eof: 5224cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Ran out of tokens. 5234cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; 5244cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5254cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::l_paren: 5264cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Recursively consume properly-nested parens. 5274cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5284cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeParen(); 52914b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis ConsumeAndStoreUntil(tok::r_paren, Toks, /*StopAtSemi=*/false); 5304cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5314cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::l_square: 5324cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Recursively consume properly-nested square brackets. 5334cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5344cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBracket(); 53514b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis ConsumeAndStoreUntil(tok::r_square, Toks, /*StopAtSemi=*/false); 5364cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5374cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::l_brace: 5384cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Recursively consume properly-nested braces. 5394cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5404cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBrace(); 54114b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis ConsumeAndStoreUntil(tok::r_brace, Toks, /*StopAtSemi=*/false); 5424cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5434cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5444cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Okay, we found a ']' or '}' or ')', which we think should be balanced. 5454cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Since the user wasn't looking for this token (if they were, it would 5464cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // already be handled), this isn't balanced. If there is a LHS token at a 5474cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // higher level, we will assume that this matches the unbalanced token 5484cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // and return it. Otherwise, this is a spurious RHS token, which we skip. 5494cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::r_paren: 5504cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis if (ParenCount && !isFirstTokenConsumed) 5514cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; // Matches something. 5524cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5534cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeParen(); 5544cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5554cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::r_square: 5564cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis if (BracketCount && !isFirstTokenConsumed) 5574cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; // Matches something. 5584cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5594cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBracket(); 5604cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5614cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::r_brace: 5624cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis if (BraceCount && !isFirstTokenConsumed) 5634cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; // Matches something. 5644cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5654cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBrace(); 5664cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5674cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5687d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis case tok::code_completion: 5697d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis Toks.push_back(Tok); 5707d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis ConsumeCodeCompletionToken(); 5717d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis break; 5727d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 5734cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::string_literal: 5744cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::wide_string_literal: 5755cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 5765cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 5775cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 5784cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5794cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeStringToken(); 5804cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 58114b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis case tok::semi: 58214b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis if (StopAtSemi) 58314b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis return false; 58414b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis // FALL THROUGH. 5854cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis default: 5864cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // consume this token. 5874cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5884cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeToken(); 5894cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5904cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 5914cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis isFirstTokenConsumed = false; 5924cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 5934cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 5946df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 5956df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl/// \brief Consume tokens and store them in the passed token container until 5966df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl/// we've passed the try keyword and constructor initializers and have consumed 597a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl/// the opening brace of the function body. The opening brace will be consumed 598a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl/// if and only if there was no error. 5996df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl/// 600a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl/// \return True on error. 601a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redlbool Parser::ConsumeAndStoreFunctionPrologue(CachedTokens &Toks) { 6026df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (Tok.is(tok::kw_try)) { 6036df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl Toks.push_back(Tok); 6046df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl ConsumeToken(); 6056df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl } 6066df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (Tok.is(tok::colon)) { 6076df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl // Initializers can contain braces too. 6086df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl Toks.push_back(Tok); 6096df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl ConsumeToken(); 6106df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 6116df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl while (Tok.is(tok::identifier) || Tok.is(tok::coloncolon)) { 6126df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (Tok.is(tok::eof) || Tok.is(tok::semi)) 6136df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl return true; 6146df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 6156df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl // Grab the identifier. 6166df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (!ConsumeAndStoreUntil(tok::l_paren, tok::l_brace, Toks, 6176df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl /*StopAtSemi=*/true, 6186df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl /*ConsumeFinalToken=*/false)) 6196df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl return true; 6206df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 6216df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl tok::TokenKind kind = Tok.getKind(); 6226df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl Toks.push_back(Tok); 6236df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (kind == tok::l_paren) 6246df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl ConsumeParen(); 6256df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl else { 6266df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl assert(kind == tok::l_brace && "Must be left paren or brace here."); 6276df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl ConsumeBrace(); 628a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // In C++03, this has to be the start of the function body, which 629a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // means the initializer is malformed. 630a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl if (!getLang().CPlusPlus0x) 631a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl return false; 6326df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl } 6336df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 6346df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl // Grab the initializer 6356df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (!ConsumeAndStoreUntil(kind == tok::l_paren ? tok::r_paren : 6366df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl tok::r_brace, 6376df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl Toks, /*StopAtSemi=*/true)) 6386df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl return true; 639a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl 640a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // Grab the separating comma, if any. 641a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl if (Tok.is(tok::comma)) { 642a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl Toks.push_back(Tok); 643a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl ConsumeToken(); 644a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl } 6456df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl } 6466df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl } 6476df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 648a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // Grab any remaining garbage to be diagnosed later. We stop when we reach a 649a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // brace: an opening one is the function body, while a closing one probably 650a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // means we've reached the end of the class. 651a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl if (!ConsumeAndStoreUntil(tok::l_brace, tok::r_brace, Toks, 652a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl /*StopAtSemi=*/true, /*ConsumeFinalToken=*/false)) 653a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl return true; 654a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl if(Tok.isNot(tok::l_brace)) 655a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl return true; 656a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl 657a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl Toks.push_back(Tok); 658a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl ConsumeBrace(); 659a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl return false; 6606df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl} 661