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" 199257664568bf375b7790131a84d9a4fa30a5b7e3John McCall#include "RAIIObjectsForParser.h" 204cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidisusing namespace clang; 214cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 22d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// ParseCXXInlineMethodDef - We parsed and verified that the specified 234cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// Declarator is a well formed C++ inline method definition. Now lex its body 244cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// and store its tokens for parsing after the C++ class is complete. 255f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik VerbruggenDecl *Parser::ParseCXXInlineMethodDef(AccessSpecifier AS, 265f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen AttributeList *AccessAttrs, 275f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen ParsingDeclarator &D, 2845fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor const ParsedTemplateInfo &TemplateInfo, 2945fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor const VirtSpecifiers& VS, 3045fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor FunctionDefinitionKind DefinitionKind, 3145fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor ExprResult& Init) { 32075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(D.isFunctionDeclarator() && "This isn't a function declarator!"); 33e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt assert((Tok.is(tok::l_brace) || Tok.is(tok::colon) || Tok.is(tok::kw_try) || 34e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Tok.is(tok::equal)) && 35e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt "Current token not a '{', ':', '=', or 'try'!"); 364cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 375354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg TemplateParams( 384cd8494d9a2f99cbf38147bca80be18cdff83734Sean Hunt TemplateInfo.TemplateParams ? TemplateInfo.TemplateParams->data() : 0, 394cd8494d9a2f99cbf38147bca80be18cdff83734Sean Hunt TemplateInfo.TemplateParams ? TemplateInfo.TemplateParams->size() : 0); 404cd8494d9a2f99cbf38147bca80be18cdff83734Sean Hunt 41d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *FnD; 4245fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(DefinitionKind); 4367d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall if (D.getDeclSpec().isFriendSpecified()) 442c712f50cd56eaf3662989b556e9c6b1e8fcd11aKaelyn Uhrain FnD = Actions.ActOnFriendFunctionDecl(getCurScope(), D, 453fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer TemplateParams); 46147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor else { 4723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor FnD = Actions.ActOnCXXMemberDeclarator(getCurScope(), AS, D, 483fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer TemplateParams, 0, 49ca5233044ef679840d1ad1c46a36b16e2ee8a6e1Richard Smith VS, ICIS_NoInit); 50147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor if (FnD) { 515f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen Actions.ProcessDeclAttributeList(getCurScope(), FnD, AccessAttrs, 525f1c822def3efffe1d8f7299fbbbc3b1cdd4833dErik Verbruggen false, true); 53147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor bool TypeSpecContainsAuto 54147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor = D.getDeclSpec().getTypeSpecType() == DeclSpec::TST_auto; 55a2b4e5d9292688bc67b583592918dbeecae31ea3Douglas Gregor if (Init.isUsable()) 56147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor Actions.AddInitializerToDecl(FnD, Init.get(), false, 57147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor TypeSpecContainsAuto); 58147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor else 59147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor Actions.ActOnUninitializedDecl(FnD, TypeSpecContainsAuto); 60147545d698972cfd34ece30a5d55e8180784161eDouglas Gregor } 614867347e82648d3baf09524b98b09c297a5a198fNico Weber } 624cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 6374e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor HandleMemberFunctionDeclDelays(D, FnD); 64d33133cdc1af466f9c276249b2621be03867888bEli Friedman 65eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall D.complete(FnD); 66eee1d5434ebfa955ffc3c493aecd68bb7b3f4838John McCall 67e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Tok.is(tok::equal)) { 68e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt ConsumeToken(); 69e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 70c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith if (!FnD) { 71c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith SkipUntil(tok::semi); 72c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith return 0; 73c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith } 74c430ef4f92eedea7d3378f05a2b05982ed3713dcRichard Smith 75e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt bool Delete = false; 76e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt SourceLocation KWLoc; 77e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Tok.is(tok::kw_delete)) { 784e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 797fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_deleted_function : 80d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_deleted_function); 81e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 82e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt KWLoc = ConsumeToken(); 83e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Actions.SetDeclDeleted(FnD, KWLoc); 84e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Delete = true; 85e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } else if (Tok.is(tok::kw_default)) { 864e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 877fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_defaulted_function : 88d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_defaulted_function); 89e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 90e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt KWLoc = ConsumeToken(); 91e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Actions.SetDeclDefaulted(FnD, KWLoc); 92e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } else { 93e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 94e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 95e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 96e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Tok.is(tok::comma)) { 97e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 98e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt << Delete; 99e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt SkipUntil(tok::semi); 100e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } else { 101e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 102e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Delete ? "delete" : "default", tok::semi); 103e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 104e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 105e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return FnD; 106e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 107e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 1088387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, if we are within a class template 1098387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // or if we are about to parse function member template then consume 1108387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // the tokens and store them for parsing at the end of the translation unit. 1114e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing && 1120963017dcbc32176c79a251c3ab23bc35ac784e5Douglas Gregor DefinitionKind == FDK_Definition && 1138387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ((Actions.CurContext->isDependentContext() || 1148387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind != ParsedTemplateInfo::NonTemplate) && 1159d38dbc9a16017fff3e34b7876a6590413a7d56bFrancois Pichet !Actions.IsInsideALocalClassWithinATemplateFunction())) { 1168387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1178387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FnD) { 118e1fca502e7f1349e9b4520a4ca9a02413bcf2b14Francois Pichet LateParsedTemplatedFunction *LPT = new LateParsedTemplatedFunction(FnD); 1198387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1208387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FD = 0; 1218387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(FnD)) 1228387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FD = FunTmpl->getTemplatedDecl(); 1238387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 1248387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FD = cast<FunctionDecl>(FnD); 12581542fd91bd5e7e65ebae3eaad117bdaeaf7d737Chandler Carruth Actions.CheckForFunctionRedefinition(FD); 1268387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1278387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplateMap[FD] = LPT; 1288387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.MarkAsLateParsedTemplate(FD); 1298387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(LPT->Toks); 1308387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } else { 1318387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet CachedTokens Toks; 1328387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(Toks); 1338387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 1348387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1358387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return FnD; 1368387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 1378387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1384cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Consume the tokens and store them for later parsing. 1394cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 140d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor LexedMethod* LM = new LexedMethod(this, FnD); 141d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor getCurrentClass().LateParsedDeclarations.push_back(LM); 142d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor LM->TemplateScope = getCurScope()->isTemplateParamScope(); 143d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor CachedTokens &Toks = LM->Toks; 1444cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 145d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl tok::TokenKind kind = Tok.getKind(); 146a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // Consume everything up to (and including) the left brace of the 147a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // function body. 148a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl if (ConsumeAndStoreFunctionPrologue(Toks)) { 149a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // We didn't find the left-brace we expected after the 150e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman // constructor initializer; we already printed an error, and it's likely 151e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman // impossible to recover, so don't try to parse this method later. 152e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman // If we stopped at a semicolon, consume it to avoid an extra warning. 153e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman if (Tok.is(tok::semi)) 154e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman ConsumeToken(); 155e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman delete getCurrentClass().LateParsedDeclarations.back(); 156e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman getCurrentClass().LateParsedDeclarations.pop_back(); 157e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman return FnD; 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); 198d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor ConsumeToken(); 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. 300ccc1b5eebc6ca8a904c58c0468b9a71483b7c7cfDouglas Gregor Actions.ActOnDelayedCXXMethodParameter(getCurScope(), 301ccc1b5eebc6ca8a904c58c0468b9a71483b7c7cfDouglas Gregor LM.DefaultArgs[I].Param); 302d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 303d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (CachedTokens *Toks = LM.DefaultArgs[I].Toks) { 304d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Save the current token position. 305d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor SourceLocation origLoc = Tok.getLocation(); 306d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 307d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Parse the default argument from its saved token stream. 308d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Toks->push_back(Tok); // So that the current token doesn't get lost 309d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor PP.EnterTokenStream(&Toks->front(), Toks->size(), true, false); 310d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 311d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Consume the previously-pushed token. 312d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ConsumeAnyToken(); 313d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 314d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Consume the '='. 315d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert(Tok.is(tok::equal) && "Default argument not starting with '='"); 316d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor SourceLocation EqualLoc = ConsumeToken(); 317d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 318d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // The argument isn't actually potentially evaluated unless it is 319d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // used. 320d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor EnterExpressionEvaluationContext Eval(Actions, 321ccc1b5eebc6ca8a904c58c0468b9a71483b7c7cfDouglas Gregor Sema::PotentiallyEvaluatedIfUsed, 322ccc1b5eebc6ca8a904c58c0468b9a71483b7c7cfDouglas Gregor LM.DefaultArgs[I].Param); 323d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 32484407ba82a10235962901ce269b7b3276d17f01dSebastian Redl ExprResult DefArgResult; 325ca8937111cccdbf7d17c349487a332d6c7c97f91Sebastian Redl if (getLangOpts().CPlusPlus0x && Tok.is(tok::l_brace)) { 326ca8937111cccdbf7d17c349487a332d6c7c97f91Sebastian Redl Diag(Tok, diag::warn_cxx98_compat_generalized_initializer_lists); 32784407ba82a10235962901ce269b7b3276d17f01dSebastian Redl DefArgResult = ParseBraceInitializer(); 328ca8937111cccdbf7d17c349487a332d6c7c97f91Sebastian Redl } else 32984407ba82a10235962901ce269b7b3276d17f01dSebastian Redl DefArgResult = ParseAssignmentExpression(); 330d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (DefArgResult.isInvalid()) 331d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnParamDefaultArgumentError(LM.DefaultArgs[I].Param); 332d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor else { 333d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (Tok.is(tok::cxx_defaultarg_end)) 334d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ConsumeToken(); 335d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor else 336d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Diag(Tok.getLocation(), diag::err_default_arg_unparsed); 337d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnParamDefaultArgument(LM.DefaultArgs[I].Param, EqualLoc, 338d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor DefArgResult.take()); 339d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } 34072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 341d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert(!PP.getSourceManager().isBeforeInTranslationUnit(origLoc, 342d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Tok.getLocation()) && 343d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor "ParseAssignmentExpression went over the default arg tokens!"); 344d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // There could be leftover tokens (e.g. because of an error). 345d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Skip through until we reach the original token position. 346d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor while (Tok.getLocation() != origLoc && Tok.isNot(tok::eof)) 34772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAnyToken(); 34872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 349d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor delete Toks; 350d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor LM.DefaultArgs[I].Toks = 0; 35172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 35272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 353a058fd4f0a944174295f77169b438510dad389f8Richard Smith 354d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor PrototypeScope.Exit(); 3556569d68745c8213709740337d2be52b031384f58Douglas Gregor 356d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Finish the delayed C++ method declaration. 357d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnFinishDelayedCXXMethodDeclaration(getCurScope(), LM.Method); 35872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor} 35972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 3604cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseLexedMethodDefs - We finished parsing the member specification of a top 3614cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// (non-nested) C++ class. Now go over the stack of lexed methods that were 3624cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// collected during its parsing and parse them all. 3636569d68745c8213709740337d2be52b031384f58Douglas Gregorvoid Parser::ParseLexedMethodDefs(ParsingClass &Class) { 3646569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasTemplateScope = !Class.TopLevelClass && Class.TemplateScope; 365d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseScope ClassTemplateScope(this, Scope::TemplateParamScope, HasTemplateScope); 3666569d68745c8213709740337d2be52b031384f58Douglas Gregor if (HasTemplateScope) 36723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnReenterTemplateScope(getCurScope(), Class.TagOrTemplate); 3686569d68745c8213709740337d2be52b031384f58Douglas Gregor 3696569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasClassScope = !Class.TopLevelClass; 3706569d68745c8213709740337d2be52b031384f58Douglas Gregor ParseScope ClassScope(this, Scope::ClassScope|Scope::DeclScope, 3716569d68745c8213709740337d2be52b031384f58Douglas Gregor HasClassScope); 3726569d68745c8213709740337d2be52b031384f58Douglas Gregor 373d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor for (size_t i = 0; i < Class.LateParsedDeclarations.size(); ++i) { 374d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Class.LateParsedDeclarations[i]->ParseLexedMethodDefs(); 375d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } 376d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor} 3774cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 378d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregorvoid Parser::ParseLexedMethodDef(LexedMethod &LM) { 379d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // If this is a member template, introduce the template parameter scope. 380d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseScope TemplateScope(this, Scope::TemplateParamScope, LM.TemplateScope); 381d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (LM.TemplateScope) 382d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnReenterTemplateScope(getCurScope(), LM.D); 383d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 384d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Save the current token position. 385d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor SourceLocation origLoc = Tok.getLocation(); 386d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 387d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert(!LM.Toks.empty() && "Empty body!"); 388d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Append the current token at the end of the new token stream so that it 389d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // doesn't get lost. 390d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor LM.Toks.push_back(Tok); 391d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor PP.EnterTokenStream(LM.Toks.data(), LM.Toks.size(), true, false); 392d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 393d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Consume the previously pushed token. 394d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ConsumeAnyToken(); 395d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert((Tok.is(tok::l_brace) || Tok.is(tok::colon) || Tok.is(tok::kw_try)) 396d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor && "Inline method not starting with '{', ':' or 'try'"); 397d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 398d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Parse the method body. Function body parsing code is similar enough 399d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // to be re-used for method bodies as well. 400d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseScope FnScope(this, Scope::FnScope|Scope::DeclScope); 401d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnStartOfFunctionDef(getCurScope(), LM.D); 402d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 403d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (Tok.is(tok::kw_try)) { 404c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor ParseFunctionTryBlock(LM.D, FnScope); 405d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor assert(!PP.getSourceManager().isBeforeInTranslationUnit(origLoc, 406d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Tok.getLocation()) && 407d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor "ParseFunctionTryBlock went over the cached tokens!"); 408d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // There could be leftover tokens (e.g. because of an error). 409d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Skip through until we reach the original token position. 410d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor while (Tok.getLocation() != origLoc && Tok.isNot(tok::eof)) 411d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ConsumeAnyToken(); 412d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor return; 413d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } 414d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (Tok.is(tok::colon)) { 415d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor ParseConstructorInitializer(LM.D); 4164cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 417d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Error recovery. 418d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (!Tok.is(tok::l_brace)) { 419c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor FnScope.Exit(); 420d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnFinishFunctionBody(LM.D, 0); 42110904527359605a76561a49769a2199351a072d8Matt Beaumont-Gay while (Tok.getLocation() != origLoc && Tok.isNot(tok::eof)) 42210904527359605a76561a49769a2199351a072d8Matt Beaumont-Gay ConsumeAnyToken(); 423d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor return; 424d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } 425d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor } else 426d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor Actions.ActOnDefaultCtorInitializers(LM.D); 427d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 428c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor ParseFunctionStatementBody(LM.D, FnScope); 429d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor 430d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (Tok.getLocation() != origLoc) { 431d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Due to parsing error, we either went over the cached tokens or 432d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // there are still cached tokens left. If it's the latter case skip the 433d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // leftover tokens. 434d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // Since this is an uncommon situation that should be avoided, use the 435d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor // expensive isBeforeInTranslationUnit call. 436d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor if (PP.getSourceManager().isBeforeInTranslationUnit(Tok.getLocation(), 437d54eb4410330383f48d3cc22b2ad8d23f120836bDouglas Gregor origLoc)) 4388f9359f5ae1227f3b489d1d261225d8180b64ed3Argyrios Kyrtzidis while (Tok.getLocation() != origLoc && Tok.isNot(tok::eof)) 4397558cd00a5ac620990174f3cba86aea4bd9a000aArgyrios Kyrtzidis ConsumeAnyToken(); 4407a614d8380297fcd2bc23986241905d97222948cRichard Smith } 4417a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4427a614d8380297fcd2bc23986241905d97222948cRichard Smith 4437a614d8380297fcd2bc23986241905d97222948cRichard Smith/// ParseLexedMemberInitializers - We finished parsing the member specification 4447a614d8380297fcd2bc23986241905d97222948cRichard Smith/// of a top (non-nested) C++ class. Now go over the stack of lexed data member 4457a614d8380297fcd2bc23986241905d97222948cRichard Smith/// initializers that were collected during its parsing and parse them all. 4467a614d8380297fcd2bc23986241905d97222948cRichard Smithvoid Parser::ParseLexedMemberInitializers(ParsingClass &Class) { 4477a614d8380297fcd2bc23986241905d97222948cRichard Smith bool HasTemplateScope = !Class.TopLevelClass && Class.TemplateScope; 4487a614d8380297fcd2bc23986241905d97222948cRichard Smith ParseScope ClassTemplateScope(this, Scope::TemplateParamScope, 4497a614d8380297fcd2bc23986241905d97222948cRichard Smith HasTemplateScope); 4507a614d8380297fcd2bc23986241905d97222948cRichard Smith if (HasTemplateScope) 4517a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnReenterTemplateScope(getCurScope(), Class.TagOrTemplate); 4527a614d8380297fcd2bc23986241905d97222948cRichard Smith 453cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor // Set or update the scope flags. 4547a614d8380297fcd2bc23986241905d97222948cRichard Smith bool AlreadyHasClassScope = Class.TopLevelClass; 455cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor unsigned ScopeFlags = Scope::ClassScope|Scope::DeclScope; 4567a614d8380297fcd2bc23986241905d97222948cRichard Smith ParseScope ClassScope(this, ScopeFlags, !AlreadyHasClassScope); 4577a614d8380297fcd2bc23986241905d97222948cRichard Smith ParseScopeFlags ClassScopeFlags(this, ScopeFlags, AlreadyHasClassScope); 4587558cd00a5ac620990174f3cba86aea4bd9a000aArgyrios Kyrtzidis 4597a614d8380297fcd2bc23986241905d97222948cRichard Smith if (!AlreadyHasClassScope) 4607a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnStartDelayedMemberDeclarations(getCurScope(), 4617a614d8380297fcd2bc23986241905d97222948cRichard Smith Class.TagOrTemplate); 4627a614d8380297fcd2bc23986241905d97222948cRichard Smith 463268efba18e171d47e847ccdf313498905c32acfaBenjamin Kramer if (!Class.LateParsedDeclarations.empty()) { 464cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor // C++11 [expr.prim.general]p4: 465cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor // Otherwise, if a member-declarator declares a non-static data member 466cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor // (9.2) of a class X, the expression this is a prvalue of type "pointer 467cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor // to X" within the optional brace-or-equal-initializer. It shall not 468cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor // appear elsewhere in the member-declarator. 469cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor Sema::CXXThisScopeRAII ThisScope(Actions, Class.TagOrTemplate, 470cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor /*TypeQuals=*/(unsigned)0); 471cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor 472cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor for (size_t i = 0; i < Class.LateParsedDeclarations.size(); ++i) { 473cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor Class.LateParsedDeclarations[i]->ParseLexedMemberInitializers(); 474cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor } 4754cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 476cefc3afac14d29de5aba7810cc8fe6c858949e9dDouglas Gregor 4777a614d8380297fcd2bc23986241905d97222948cRichard Smith if (!AlreadyHasClassScope) 4787a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnFinishDelayedMemberDeclarations(getCurScope(), 4797a614d8380297fcd2bc23986241905d97222948cRichard Smith Class.TagOrTemplate); 4807a614d8380297fcd2bc23986241905d97222948cRichard Smith 4817a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnFinishDelayedMemberInitializers(Class.TagOrTemplate); 4827a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4837a614d8380297fcd2bc23986241905d97222948cRichard Smith 4847a614d8380297fcd2bc23986241905d97222948cRichard Smithvoid Parser::ParseLexedMemberInitializer(LateParsedMemberInitializer &MI) { 4851991b7139a92d73420336690a870f049e88cfad6Richard Smith if (!MI.Field || MI.Field->isInvalidDecl()) 4867a614d8380297fcd2bc23986241905d97222948cRichard Smith return; 4877a614d8380297fcd2bc23986241905d97222948cRichard Smith 4887a614d8380297fcd2bc23986241905d97222948cRichard Smith // Append the current token at the end of the new token stream so that it 4897a614d8380297fcd2bc23986241905d97222948cRichard Smith // doesn't get lost. 4907a614d8380297fcd2bc23986241905d97222948cRichard Smith MI.Toks.push_back(Tok); 4917a614d8380297fcd2bc23986241905d97222948cRichard Smith PP.EnterTokenStream(MI.Toks.data(), MI.Toks.size(), true, false); 4927a614d8380297fcd2bc23986241905d97222948cRichard Smith 4937a614d8380297fcd2bc23986241905d97222948cRichard Smith // Consume the previously pushed token. 4947a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeAnyToken(); 4957a614d8380297fcd2bc23986241905d97222948cRichard Smith 4967a614d8380297fcd2bc23986241905d97222948cRichard Smith SourceLocation EqualLoc; 497ca5233044ef679840d1ad1c46a36b16e2ee8a6e1Richard Smith 498552e29985a710f4ced62b39d70557501bd31ca9bDouglas Gregor ExprResult Init = ParseCXXMemberInitializer(MI.Field, /*IsFunction=*/false, 499552e29985a710f4ced62b39d70557501bd31ca9bDouglas Gregor EqualLoc); 5007a614d8380297fcd2bc23986241905d97222948cRichard Smith 5017a614d8380297fcd2bc23986241905d97222948cRichard Smith Actions.ActOnCXXInClassMemberInitializer(MI.Field, EqualLoc, Init.release()); 5027a614d8380297fcd2bc23986241905d97222948cRichard Smith 5037a614d8380297fcd2bc23986241905d97222948cRichard Smith // The next token should be our artificial terminating EOF token. 5047a614d8380297fcd2bc23986241905d97222948cRichard Smith if (Tok.isNot(tok::eof)) { 5057a614d8380297fcd2bc23986241905d97222948cRichard Smith SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 5067a614d8380297fcd2bc23986241905d97222948cRichard Smith if (!EndLoc.isValid()) 5077a614d8380297fcd2bc23986241905d97222948cRichard Smith EndLoc = Tok.getLocation(); 5087a614d8380297fcd2bc23986241905d97222948cRichard Smith // No fixit; we can't recover as if there were a semicolon here. 5097a614d8380297fcd2bc23986241905d97222948cRichard Smith Diag(EndLoc, diag::err_expected_semi_decl_list); 5107a614d8380297fcd2bc23986241905d97222948cRichard Smith 5117a614d8380297fcd2bc23986241905d97222948cRichard Smith // Consume tokens until we hit the artificial EOF. 5127a614d8380297fcd2bc23986241905d97222948cRichard Smith while (Tok.isNot(tok::eof)) 5137a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeAnyToken(); 5147a614d8380297fcd2bc23986241905d97222948cRichard Smith } 5157a614d8380297fcd2bc23986241905d97222948cRichard Smith ConsumeAnyToken(); 5164cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 5174cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5184cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ConsumeAndStoreUntil - Consume and store the token at the passed token 51972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// container until the token 'T' is reached (which gets 5201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// consumed/stored too, if ConsumeFinalToken). 52114b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis/// If StopAtSemi is true, then we will stop early at a ';' character. 52272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// Returns true if token 'T1' or 'T2' was found. 5234cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// NOTE: This is a specialized version of Parser::SkipUntil. 52472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregorbool Parser::ConsumeAndStoreUntil(tok::TokenKind T1, tok::TokenKind T2, 52572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens &Toks, 52614b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis bool StopAtSemi, bool ConsumeFinalToken) { 5274cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // We always want this function to consume at least one token if the first 5284cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // token isn't T and if not at EOF. 5294cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis bool isFirstTokenConsumed = true; 5304cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis while (1) { 5314cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // If we found one of the tokens, stop and return true. 53272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor if (Tok.is(T1) || Tok.is(T2)) { 53372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor if (ConsumeFinalToken) { 53472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Toks.push_back(Tok); 53572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAnyToken(); 53672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 5374cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return true; 5384cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 5394cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5404cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis switch (Tok.getKind()) { 5414cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::eof: 5424cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Ran out of tokens. 5434cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; 5444cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5454cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::l_paren: 5464cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Recursively consume properly-nested parens. 5474cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5484cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeParen(); 54914b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis ConsumeAndStoreUntil(tok::r_paren, Toks, /*StopAtSemi=*/false); 5504cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5514cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::l_square: 5524cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Recursively consume properly-nested square brackets. 5534cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5544cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBracket(); 55514b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis ConsumeAndStoreUntil(tok::r_square, Toks, /*StopAtSemi=*/false); 5564cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5574cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::l_brace: 5584cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Recursively consume properly-nested braces. 5594cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5604cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBrace(); 56114b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis ConsumeAndStoreUntil(tok::r_brace, Toks, /*StopAtSemi=*/false); 5624cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5634cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5644cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Okay, we found a ']' or '}' or ')', which we think should be balanced. 5654cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Since the user wasn't looking for this token (if they were, it would 5664cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // already be handled), this isn't balanced. If there is a LHS token at a 5674cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // higher level, we will assume that this matches the unbalanced token 5684cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // and return it. Otherwise, this is a spurious RHS token, which we skip. 5694cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::r_paren: 5704cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis if (ParenCount && !isFirstTokenConsumed) 5714cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; // Matches something. 5724cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5734cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeParen(); 5744cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5754cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::r_square: 5764cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis if (BracketCount && !isFirstTokenConsumed) 5774cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; // Matches something. 5784cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5794cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBracket(); 5804cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5814cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::r_brace: 5824cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis if (BraceCount && !isFirstTokenConsumed) 5834cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; // Matches something. 5844cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5854cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBrace(); 5864cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 5874cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5887d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis case tok::code_completion: 5897d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis Toks.push_back(Tok); 5907d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis ConsumeCodeCompletionToken(); 5917d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis break; 5927d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 5934cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::string_literal: 5944cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::wide_string_literal: 5955cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 5965cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 5975cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 5984cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 5994cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeStringToken(); 6004cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 60114b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis case tok::semi: 60214b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis if (StopAtSemi) 60314b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis return false; 60414b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis // FALL THROUGH. 6054cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis default: 6064cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // consume this token. 6074cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 6084cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeToken(); 6094cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 6104cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 6114cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis isFirstTokenConsumed = false; 6124cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 6134cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 6146df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 6156df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl/// \brief Consume tokens and store them in the passed token container until 6166df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl/// we've passed the try keyword and constructor initializers and have consumed 617a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl/// the opening brace of the function body. The opening brace will be consumed 618a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl/// if and only if there was no error. 6196df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl/// 620a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl/// \return True on error. 621a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redlbool Parser::ConsumeAndStoreFunctionPrologue(CachedTokens &Toks) { 6226df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (Tok.is(tok::kw_try)) { 6236df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl Toks.push_back(Tok); 6246df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl ConsumeToken(); 6256df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl } 626e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman bool ReadInitializer = false; 6276df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (Tok.is(tok::colon)) { 6286df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl // Initializers can contain braces too. 6296df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl Toks.push_back(Tok); 6306df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl ConsumeToken(); 6316df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 6326df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl while (Tok.is(tok::identifier) || Tok.is(tok::coloncolon)) { 6336df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (Tok.is(tok::eof) || Tok.is(tok::semi)) 634e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman return Diag(Tok.getLocation(), diag::err_expected_lbrace); 6356df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 6366df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl // Grab the identifier. 6376df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl if (!ConsumeAndStoreUntil(tok::l_paren, tok::l_brace, Toks, 6386df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl /*StopAtSemi=*/true, 6396df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl /*ConsumeFinalToken=*/false)) 640e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman return Diag(Tok.getLocation(), diag::err_expected_lparen); 6416df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 6426df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl tok::TokenKind kind = Tok.getKind(); 6436df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl Toks.push_back(Tok); 644e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman bool IsLParen = (kind == tok::l_paren); 645e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman SourceLocation LOpen = Tok.getLocation(); 646e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman 647e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman if (IsLParen) { 6486df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl ConsumeParen(); 649e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman } else { 6506df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl assert(kind == tok::l_brace && "Must be left paren or brace here."); 6516df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl ConsumeBrace(); 652a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // In C++03, this has to be the start of the function body, which 653e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman // means the initializer is malformed; we'll diagnose it later. 6544e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus0x) 655a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl return false; 6566df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl } 6576df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 6586df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl // Grab the initializer 659e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman if (!ConsumeAndStoreUntil(IsLParen ? tok::r_paren : tok::r_brace, 660e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman Toks, /*StopAtSemi=*/true)) { 661e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman Diag(Tok, IsLParen ? diag::err_expected_rparen : 662e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman diag::err_expected_rbrace); 663e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman Diag(LOpen, diag::note_matching) << (IsLParen ? "(" : "{"); 6646df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl return true; 665e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman } 666e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman 667e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman // Grab pack ellipsis, if present 668e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman if (Tok.is(tok::ellipsis)) { 669e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman Toks.push_back(Tok); 670e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman ConsumeToken(); 671e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman } 672a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl 673a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // Grab the separating comma, if any. 674a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl if (Tok.is(tok::comma)) { 675a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl Toks.push_back(Tok); 676a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl ConsumeToken(); 677e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman } else if (Tok.isNot(tok::l_brace)) { 678e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman ReadInitializer = true; 679e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman break; 680a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl } 6816df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl } 6826df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl } 6836df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl 684a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // Grab any remaining garbage to be diagnosed later. We stop when we reach a 685a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // brace: an opening one is the function body, while a closing one probably 686a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl // means we've reached the end of the class. 687e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman ConsumeAndStoreUntil(tok::l_brace, tok::r_brace, Toks, 688e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman /*StopAtSemi=*/true, 689e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman /*ConsumeFinalToken=*/false); 690e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman if (Tok.isNot(tok::l_brace)) { 691e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman if (ReadInitializer) 692e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman return Diag(Tok.getLocation(), diag::err_expected_lbrace_or_comma); 693e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman return Diag(Tok.getLocation(), diag::err_expected_lbrace); 694e9ee382c32a83e9807a2fe4cfd52b5a11169a4b8Eli Friedman } 695a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl 696a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl Toks.push_back(Tok); 697a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl ConsumeBrace(); 698a891a32d3762ee641a29c091d286f2a7432671a5Sebastian Redl return false; 6996df6548e44a61c444bd85dccd0398cba047c79b1Sebastian Redl} 700