ParseCXXInlineMethods.cpp revision 7fd3a6456a88cdd225b92ae1606144f24c7f51d4
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" 164cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis#include "clang/Parse/DeclSpec.h" 174cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis#include "clang/Parse/Scope.h" 184cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidisusing namespace clang; 194cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 20d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// ParseCXXInlineMethodDef - We parsed and verified that the specified 214cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// Declarator is a well formed C++ inline method definition. Now lex its body 224cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// and store its tokens for parsing after the C++ class is complete. 23b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris LattnerParser::DeclPtrTy 2437b372b76a3fafe77186d7e6079e5642e2017478Douglas GregorParser::ParseCXXInlineMethodDef(AccessSpecifier AS, Declarator &D, 2537b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor const ParsedTemplateInfo &TemplateInfo) { 264cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(D.getTypeObject(0).Kind == DeclaratorChunk::Function && 274cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis "This isn't a function declarator!"); 28d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl assert((Tok.is(tok::l_brace) || Tok.is(tok::colon) || Tok.is(tok::kw_try)) && 29d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl "Current token not a '{', ':' or 'try'!"); 304cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 3137b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor Action::MultiTemplateParamsArg TemplateParams(Actions, 3237b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->data() : 0, 3337b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor TemplateInfo.TemplateParams? TemplateInfo.TemplateParams->size() : 0); 3467d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall DeclPtrTy FnD; 3567d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall if (D.getDeclSpec().isFriendSpecified()) 3637b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor // FIXME: Friend templates 37bbbcdd9cc06b6078939129330ecc9bda3310984dJohn McCall FnD = Actions.ActOnFriendFunctionDecl(CurScope, D, true, move(TemplateParams)); 3837b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor else // FIXME: pass template information through 391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FnD = Actions.ActOnCXXMemberDeclarator(CurScope, AS, D, 40d1a7846699a82f85ff3ce6b2e383409537c3f5c5Sebastian Redl move(TemplateParams), 0, 0, 41d1a7846699a82f85ff3ce6b2e383409537c3f5c5Sebastian Redl /*IsDefinition*/true); 424cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 43d33133cdc1af466f9c276249b2621be03867888bEli Friedman HandleMemberFunctionDefaultArgs(D, FnD); 44d33133cdc1af466f9c276249b2621be03867888bEli Friedman 454cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Consume the tokens and store them for later parsing. 464cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 476569d68745c8213709740337d2be52b031384f58Douglas Gregor getCurrentClass().MethodDefs.push_back(LexedMethod(FnD)); 481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump getCurrentClass().MethodDefs.back().TemplateScope 49d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor = CurScope->isTemplateParamScope(); 506569d68745c8213709740337d2be52b031384f58Douglas Gregor CachedTokens &Toks = getCurrentClass().MethodDefs.back().Toks; 514cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 52d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl tok::TokenKind kind = Tok.getKind(); 53d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl // We may have a constructor initializer or function-try-block here. 54d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (kind == tok::colon || kind == tok::kw_try) { 557ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // Consume everything up to (and including) the left brace. 5672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor if (!ConsumeAndStoreUntil(tok::l_brace, tok::unknown, Toks, tok::semi)) { 573f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor // We didn't find the left-brace we expected after the 581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // constructor initializer. 593f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor if (Tok.is(tok::semi)) { 603f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor // We found a semicolon; complain, consume the semicolon, and 613f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor // don't try to parse this method later. 623f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor Diag(Tok.getLocation(), diag::err_expected_lbrace); 633f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor ConsumeAnyToken(); 646569d68745c8213709740337d2be52b031384f58Douglas Gregor getCurrentClass().MethodDefs.pop_back(); 653f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor return FnD; 663f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor } 673f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor } 683f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor 697ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor } else { 701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Begin by storing the '{' token. 717ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor Toks.push_back(Tok); 727ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ConsumeBrace(); 737ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor } 747ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // Consume everything up to (and including) the matching right brace. 7572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAndStoreUntil(tok::r_brace, tok::unknown, Toks); 764cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 77d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl // If we're in a function-try-block, we need to store all the catch blocks. 78d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (kind == tok::kw_try) { 79d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl while (Tok.is(tok::kw_catch)) { 80d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl ConsumeAndStoreUntil(tok::l_brace, tok::unknown, Toks); 81d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl ConsumeAndStoreUntil(tok::r_brace, tok::unknown, Toks); 82d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl } 83d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl } 84d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 854cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return FnD; 864cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 874cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 8872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// ParseLexedMethodDeclarations - We finished parsing the member 8972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// specification of a top (non-nested) C++ class. Now go over the 9072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// stack of method declarations with some parts for which parsing was 9172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// delayed (such as default arguments) and parse them. 926569d68745c8213709740337d2be52b031384f58Douglas Gregorvoid Parser::ParseLexedMethodDeclarations(ParsingClass &Class) { 936569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasTemplateScope = !Class.TopLevelClass && Class.TemplateScope; 946569d68745c8213709740337d2be52b031384f58Douglas Gregor ParseScope TemplateScope(this, Scope::TemplateParamScope, HasTemplateScope); 956569d68745c8213709740337d2be52b031384f58Douglas Gregor if (HasTemplateScope) 966569d68745c8213709740337d2be52b031384f58Douglas Gregor Actions.ActOnReenterTemplateScope(CurScope, Class.TagOrTemplate); 976569d68745c8213709740337d2be52b031384f58Douglas Gregor 987a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall // The current scope is still active if we're the top-level class. 997a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall // Otherwise we'll need to push and enter a new scope. 1006569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasClassScope = !Class.TopLevelClass; 1017a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall ParseScope ClassScope(this, Scope::ClassScope|Scope::DeclScope, HasClassScope); 1027a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall if (HasClassScope) 1037a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall Actions.ActOnStartDelayedMemberDeclarations(CurScope, Class.TagOrTemplate); 1046569d68745c8213709740337d2be52b031384f58Douglas Gregor 1056569d68745c8213709740337d2be52b031384f58Douglas Gregor for (; !Class.MethodDecls.empty(); Class.MethodDecls.pop_front()) { 1066569d68745c8213709740337d2be52b031384f58Douglas Gregor LateParsedMethodDeclaration &LM = Class.MethodDecls.front(); 1071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 108d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor // If this is a member template, introduce the template parameter scope. 109d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor ParseScope TemplateScope(this, Scope::TemplateParamScope, LM.TemplateScope); 110d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor if (LM.TemplateScope) 111d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor Actions.ActOnReenterTemplateScope(CurScope, LM.Method); 1121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor // Start the delayed C++ method declaration 11472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Actions.ActOnStartDelayedCXXMethodDeclaration(CurScope, LM.Method); 11572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 11672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor // Introduce the parameters into scope and parse their default 11772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor // arguments. 1181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParseScope PrototypeScope(this, 1193218c4bb3b5d7250f12420de6db7ef3e3f805a75Douglas Gregor Scope::FunctionPrototypeScope|Scope::DeclScope); 12072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor for (unsigned I = 0, N = LM.DefaultArgs.size(); I != N; ++I) { 12172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor // Introduce the parameter into scope. 12272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Actions.ActOnDelayedCXXMethodParameter(CurScope, LM.DefaultArgs[I].Param); 12372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 12472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor if (CachedTokens *Toks = LM.DefaultArgs[I].Toks) { 1257fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis // Save the current token position. 1267fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis SourceLocation origLoc = Tok.getLocation(); 1277fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis 12872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor // Parse the default argument from its saved token stream. 12972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Toks->push_back(Tok); // So that the current token doesn't get lost 13072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor PP.EnterTokenStream(&Toks->front(), Toks->size(), true, false); 13172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 13272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor // Consume the previously-pushed token. 13372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAnyToken(); 13472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 13572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor // Consume the '='. 13672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor assert(Tok.is(tok::equal) && "Default argument not starting with '='"); 13772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor SourceLocation EqualLoc = ConsumeToken(); 13872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 13972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor OwningExprResult DefArgResult(ParseAssignmentExpression()); 14072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor if (DefArgResult.isInvalid()) 14172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Actions.ActOnParamDefaultArgumentError(LM.DefaultArgs[I].Param); 14272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor else 14372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Actions.ActOnParamDefaultArgument(LM.DefaultArgs[I].Param, EqualLoc, 144f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move(DefArgResult)); 1457fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis 1467fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis assert(!PP.getSourceManager().isBeforeInTranslationUnit(origLoc, 1477fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis Tok.getLocation()) && 1487fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis "ParseAssignmentExpression went over the default arg tokens!"); 1497fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis // There could be leftover tokens (e.g. because of an error). 1507fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis // Skip through until we reach the original token position. 1517fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis while (Tok.getLocation() != origLoc) 1527fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis ConsumeAnyToken(); 1537fd3a6456a88cdd225b92ae1606144f24c7f51d4Argyrios Kyrtzidis 15472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor delete Toks; 15572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor LM.DefaultArgs[I].Toks = 0; 15672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 15772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 15872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor PrototypeScope.Exit(); 15972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 16072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor // Finish the delayed C++ method declaration. 16172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Actions.ActOnFinishDelayedCXXMethodDeclaration(CurScope, LM.Method); 16272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 1636569d68745c8213709740337d2be52b031384f58Douglas Gregor 1646569d68745c8213709740337d2be52b031384f58Douglas Gregor for (unsigned I = 0, N = Class.NestedClasses.size(); I != N; ++I) 1656569d68745c8213709740337d2be52b031384f58Douglas Gregor ParseLexedMethodDeclarations(*Class.NestedClasses[I]); 1667a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall 1677a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall if (HasClassScope) 1687a1dc562d4ad59237ed9fe7e8cef56f9eaa7a26cJohn McCall Actions.ActOnFinishDelayedMemberDeclarations(CurScope, Class.TagOrTemplate); 16972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor} 17072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 1714cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseLexedMethodDefs - We finished parsing the member specification of a top 1724cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// (non-nested) C++ class. Now go over the stack of lexed methods that were 1734cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// collected during its parsing and parse them all. 1746569d68745c8213709740337d2be52b031384f58Douglas Gregorvoid Parser::ParseLexedMethodDefs(ParsingClass &Class) { 1756569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasTemplateScope = !Class.TopLevelClass && Class.TemplateScope; 1766569d68745c8213709740337d2be52b031384f58Douglas Gregor ParseScope TemplateScope(this, Scope::TemplateParamScope, HasTemplateScope); 1776569d68745c8213709740337d2be52b031384f58Douglas Gregor if (HasTemplateScope) 1786569d68745c8213709740337d2be52b031384f58Douglas Gregor Actions.ActOnReenterTemplateScope(CurScope, Class.TagOrTemplate); 1796569d68745c8213709740337d2be52b031384f58Douglas Gregor 1806569d68745c8213709740337d2be52b031384f58Douglas Gregor bool HasClassScope = !Class.TopLevelClass; 1816569d68745c8213709740337d2be52b031384f58Douglas Gregor ParseScope ClassScope(this, Scope::ClassScope|Scope::DeclScope, 1826569d68745c8213709740337d2be52b031384f58Douglas Gregor HasClassScope); 1836569d68745c8213709740337d2be52b031384f58Douglas Gregor 1846569d68745c8213709740337d2be52b031384f58Douglas Gregor for (; !Class.MethodDefs.empty(); Class.MethodDefs.pop_front()) { 1856569d68745c8213709740337d2be52b031384f58Douglas Gregor LexedMethod &LM = Class.MethodDefs.front(); 1864cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 187d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor // If this is a member template, introduce the template parameter scope. 188d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor ParseScope TemplateScope(this, Scope::TemplateParamScope, LM.TemplateScope); 189d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor if (LM.TemplateScope) 190d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor Actions.ActOnReenterTemplateScope(CurScope, LM.D); 1911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1924cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(!LM.Toks.empty() && "Empty body!"); 1934cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Append the current token at the end of the new token stream so that it 1944cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // doesn't get lost. 1954cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis LM.Toks.push_back(Tok); 196efd5bdad3c2b746db46452c6b13bd3c462dd761dDouglas Gregor PP.EnterTokenStream(LM.Toks.data(), LM.Toks.size(), true, false); 1974cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 1984cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Consume the previously pushed token. 1994cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeAnyToken(); 200d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl assert((Tok.is(tok::l_brace) || Tok.is(tok::colon) || Tok.is(tok::kw_try)) 201d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl && "Inline method not starting with '{', ':' or 'try'"); 2024cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 2034cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Parse the method body. Function body parsing code is similar enough 2044cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // to be re-used for method bodies as well. 2058935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope FnScope(this, Scope::FnScope|Scope::DeclScope); 2064cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Actions.ActOnStartOfFunctionDef(CurScope, LM.D); 2074cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 208d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) { 209d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl ParseFunctionTryBlock(LM.D); 210de1b60a9868f80f0872ed05d78df3b40a10ba5caSebastian Redl continue; 211d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl } 2127ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor if (Tok.is(tok::colon)) 2137ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(LM.D); 2140849d38128536b0b33377d91bf02d005308319efFariborz Jahanian else 215393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(LM.D); 216d01c915dda27bb0045687f0a08bbcab1dd40e652Fariborz Jahanian 21740e9bc84a2ab49fc33c2b1a95c6674ab2b820e9eChris Lattner // FIXME: What if ParseConstructorInitializer doesn't leave us with a '{'?? 21840e9bc84a2ab49fc33c2b1a95c6674ab2b820e9eChris Lattner ParseFunctionStatementBody(LM.D); 2194cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 2206569d68745c8213709740337d2be52b031384f58Douglas Gregor 2216569d68745c8213709740337d2be52b031384f58Douglas Gregor for (unsigned I = 0, N = Class.NestedClasses.size(); I != N; ++I) 2226569d68745c8213709740337d2be52b031384f58Douglas Gregor ParseLexedMethodDefs(*Class.NestedClasses[I]); 2234cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 2244cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 2254cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ConsumeAndStoreUntil - Consume and store the token at the passed token 22672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// container until the token 'T' is reached (which gets 2271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// consumed/stored too, if ConsumeFinalToken). 2283f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor/// If EarlyAbortIf is specified, then we will stop early if we find that 2293f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor/// token at the top level. 23072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor/// Returns true if token 'T1' or 'T2' was found. 2314cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// NOTE: This is a specialized version of Parser::SkipUntil. 23272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregorbool Parser::ConsumeAndStoreUntil(tok::TokenKind T1, tok::TokenKind T2, 23372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens &Toks, 23472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor tok::TokenKind EarlyAbortIf, 23572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor bool ConsumeFinalToken) { 2364cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // We always want this function to consume at least one token if the first 2374cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // token isn't T and if not at EOF. 2384cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis bool isFirstTokenConsumed = true; 2394cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis while (1) { 2404cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // If we found one of the tokens, stop and return true. 24172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor if (Tok.is(T1) || Tok.is(T2)) { 24272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor if (ConsumeFinalToken) { 24372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Toks.push_back(Tok); 24472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAnyToken(); 24572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor } 2464cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return true; 2474cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 2484cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 2493f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor // If we found the early-abort token, return. 2503f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor if (Tok.is(EarlyAbortIf)) 2513f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor return false; 2523f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor 2534cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis switch (Tok.getKind()) { 2544cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::eof: 2554cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Ran out of tokens. 2564cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; 2574cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 2584cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::l_paren: 2594cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Recursively consume properly-nested parens. 2604cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 2614cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeParen(); 26272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAndStoreUntil(tok::r_paren, tok::unknown, Toks); 2634cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 2644cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::l_square: 2654cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Recursively consume properly-nested square brackets. 2664cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 2674cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBracket(); 26872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAndStoreUntil(tok::r_square, tok::unknown, Toks); 2694cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 2704cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::l_brace: 2714cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Recursively consume properly-nested braces. 2724cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 2734cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBrace(); 27472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor ConsumeAndStoreUntil(tok::r_brace, tok::unknown, Toks); 2754cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 2764cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 2774cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Okay, we found a ']' or '}' or ')', which we think should be balanced. 2784cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Since the user wasn't looking for this token (if they were, it would 2794cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // already be handled), this isn't balanced. If there is a LHS token at a 2804cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // higher level, we will assume that this matches the unbalanced token 2814cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // and return it. Otherwise, this is a spurious RHS token, which we skip. 2824cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::r_paren: 2834cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis if (ParenCount && !isFirstTokenConsumed) 2844cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; // Matches something. 2854cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 2864cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeParen(); 2874cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 2884cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::r_square: 2894cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis if (BracketCount && !isFirstTokenConsumed) 2904cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; // Matches something. 2914cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 2924cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBracket(); 2934cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 2944cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::r_brace: 2954cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis if (BraceCount && !isFirstTokenConsumed) 2964cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return false; // Matches something. 2974cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 2984cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeBrace(); 2994cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 3004cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 3014cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::string_literal: 3024cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis case tok::wide_string_literal: 3034cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 3044cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeStringToken(); 3054cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 3064cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis default: 3074cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // consume this token. 3084cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Toks.push_back(Tok); 3094cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis ConsumeToken(); 3104cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis break; 3114cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 3124cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis isFirstTokenConsumed = false; 3134cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 3144cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 315