15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Parser.cpp - C Language Family Parser ----------------------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the Parser interfaces. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Parser.h" 1555fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "RAIIObjectsForParser.h" 1655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/ASTConsumer.h" 17651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/AST/ASTContext.h" 1855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/DeclTemplate.h" 19500d3297d2a21edeac4d46cbcbe21bc2352c2a28Chris Lattner#include "clang/Parse/ParseDiagnostic.h" 2019510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 2119510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 2255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Scope.h" 230102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner#include "llvm/Support/raw_ostream.h" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 2769b5e952c56f95673064ad1815a240e0fb595865Benjamin Kramernamespace { 28aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// \brief A comment handler that passes comments found by the preprocessor 29aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// to the parser action. 30aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkoclass ActionCommentHandler : public CommentHandler { 31aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko Sema &S; 32aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 33aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkopublic: 34aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko explicit ActionCommentHandler(Sema &S) : S(S) { } 35aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 36651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool HandleComment(Preprocessor &PP, SourceRange Comment) override { 37aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko S.ActOnComment(Comment); 38aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko return false; 39aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko } 40aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko}; 41b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar 42b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar/// \brief RAIIObject to destroy the contents of a SmallVector of 43b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar/// TemplateIdAnnotation pointers and clear the vector. 44b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainarclass DestroyTemplateIdAnnotationsRAIIObj { 45b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar SmallVectorImpl<TemplateIdAnnotation *> &Container; 46b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar 47b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainarpublic: 48b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar DestroyTemplateIdAnnotationsRAIIObj( 49b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar SmallVectorImpl<TemplateIdAnnotation *> &Container) 50b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar : Container(Container) {} 51b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar 52b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar ~DestroyTemplateIdAnnotationsRAIIObj() { 53b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = 54b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar Container.begin(), 55b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar E = Container.end(); 56b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar I != E; ++I) 57b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar (*I)->Destroy(); 58b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar Container.clear(); 59b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar } 60b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar}; 6169b5e952c56f95673064ad1815a240e0fb595865Benjamin Kramer} // end anonymous namespace 62aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 63b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas GregorIdentifierInfo *Parser::getSEHExceptKeyword() { 64b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor // __except is accepted as a (contextual) keyword 654e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Ident__except && (getLangOpts().MicrosoftExt || getLangOpts().Borland)) 66b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = PP.getIdentifierInfo("__except"); 67b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 68b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor return Ident__except; 69b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor} 70b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 7125893e0930c1241c3fdafc6f1b8661443bb19692Argyrios KyrtzidisParser::Parser(Preprocessor &pp, Sema &actions, bool skipFunctionBodies) 72614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 730fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 746a91d385618ea4d28236c496f540a26877c95525Erik Verbruggen InMessageExpression(false), TemplateParameterDepth(0), 7525893e0930c1241c3fdafc6f1b8661443bb19692Argyrios Kyrtzidis ParsingInObjCContainer(false) { 7625893e0930c1241c3fdafc6f1b8661443bb19692Argyrios Kyrtzidis SkipFunctionBodies = pp.isCodeCompletionEnabled() || skipFunctionBodies; 772b970e9d70768802984f2cf1885e73643c17e0c2Chris Lattner Tok.startToken(); 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 796bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Actions.CurScope = nullptr; 809e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 826bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurParsedObjCImpl = nullptr; 83fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 84fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 85fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 86651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines initializePragmaHandlers(); 877adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner 88056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko CommentSemaHandler.reset(new ActionCommentHandler(actions)); 89056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.addCommentHandler(CommentSemaHandler.get()); 90aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 91f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 943cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 9533e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 961ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 971ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 983cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 991ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1024b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 1034b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 1044b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 1054b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 10670517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko/// \param DK The kind of diagnostic to emit. 1074b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 1084b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 1094b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 110b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 111b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 1124b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 1134b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 1144b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 1154b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 1164b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 1171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 119849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 120849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1214b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1224b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 123837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 124837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 1254b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith case tok::semi: 1264b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith return Tok.is(tok::colon) || Tok.is(tok::comma); // : or , for ; 127837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 128837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 129837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 130837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 132176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines StringRef Msg) { 133dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 137a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 138837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 139837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 140837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 141651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines { 142651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DiagnosticBuilder DB = Diag(Loc, DiagID); 143651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << FixItHint::CreateReplacement( 144651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SourceRange(Loc), tok::getPunctuatorSpelling(ExpectedTok)); 145651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DiagID == diag::err_expected) 146651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << ExpectedTok; 147651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else if (DiagID == diag::err_expected_after) 148651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << Msg << ExpectedTok; 149651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else 150651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << Msg; 151651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 152837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 153837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 154651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ConsumeAnyToken(); 155837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 156837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 157837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 158b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const char *Spelling = nullptr; 160651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (EndLoc.isValid()) 161651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Spelling = tok::getPunctuatorSpelling(ExpectedTok); 162651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 163651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DiagnosticBuilder DB = 164651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Spelling 165651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ? Diag(EndLoc, DiagID) << FixItHint::CreateInsertion(EndLoc, Spelling) 166651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines : Diag(Tok, DiagID); 167651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DiagID == diag::err_expected) 168651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << ExpectedTok; 169651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else if (DiagID == diag::err_expected_after) 170651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << Msg << ExpectedTok; 171651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else 172651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << Msg; 1734b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1779ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 178651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TryConsumeToken(tok::semi)) 179651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 180651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 181651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Tok.is(tok::code_completion)) { 182651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines handleUnexpectedCodeCompletionToken(); 1839ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 1849ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 1859ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 1869ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 1879ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 1889ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 1899ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 1909ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 1919ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 1929ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 1939ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 1949ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 1959ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 1969ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 1979ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 1989ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 199eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smithvoid Parser::ConsumeExtraSemi(ExtraSemiKind Kind, unsigned TST) { 2004b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu if (!Tok.is(tok::semi)) return; 2014b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 202eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith bool HadMultipleSemis = false; 2034b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation StartLoc = Tok.getLocation(); 2044b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation EndLoc = Tok.getLocation(); 2054b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2064b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2074b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu while ((Tok.is(tok::semi) && !Tok.isAtStartOfLine())) { 208eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith HadMultipleSemis = true; 2094b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu EndLoc = Tok.getLocation(); 2104b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2114b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2124b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 213eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // C++11 allows extra semicolons at namespace scope, but not in any of the 214eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // other contexts. 215eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind == OutsideFunction && getLangOpts().CPlusPlus) { 21680ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11) 217eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_cxx98_compat_top_level_semi) 218eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 219eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 220eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi_cxx11) 221eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2224b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu return; 2234b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2244b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 225eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind != AfterMemberFunctionDefinition || HadMultipleSemis) 226eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi) 227651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << Kind << DeclSpec::getSpecifierName((DeclSpec::TST)TST, 228651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Actions.getASTContext().getPrintingPolicy()) 229eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 230eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 231eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // A single semicolon is valid after a member function definition. 232eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_extra_semi_after_mem_fn_def) 233eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2344b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu} 2354b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 240f2b87508c744d6581200fa6521f0924b7f3c0e9fBenjamin Kramerstatic bool HasFlagsSet(Parser::SkipUntilFlags L, Parser::SkipUntilFlags R) { 2418fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev return (static_cast<unsigned>(L) & static_cast<unsigned>(R)) != 0; 2428fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev} 2438fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 2458fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev/// it (unless no flag StopBeforeMatch). Because we cannot guarantee that the 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 249a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 251a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 2528fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataevbool Parser::SkipUntil(ArrayRef<tok::TokenKind> Toks, SkipUntilFlags Flags) { 2535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 258eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie for (unsigned i = 0, NumToks = Toks.size(); i != NumToks; ++i) { 259000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2608fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopBeforeMatch)) { 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 268a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 269d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola // Important special case: The caller has given up and just wants us to 270d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola // skip the rest of the file. Do this without recursing, since we can 271d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola // get here precisely because the caller detected too much recursion. 2728fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (Toks.size() == 1 && Toks[0] == tok::eof && 2738fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev !HasFlagsSet(Flags, StopAtSemi) && 2748fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev !HasFlagsSet(Flags, StopAtCodeCompletion)) { 275651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines while (Tok.isNot(tok::eof)) 276d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola ConsumeAnyToken(); 277d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola return true; 278d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola } 279d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 284651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 285a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar case tok::annot_pragma_openmp: 286651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_pragma_openmp_end: 287651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Stop before an OpenMP pragma boundary. 288651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_begin: 289651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_end: 290651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_include: 291651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Stop before we change submodules. They generally indicate a "good" 292651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // place to pick up parsing again (except in the special case where 293651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // we're trying to skip to EOF). 294651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 295651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 296dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2978fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (!HasFlagsSet(Flags, StopAtCodeCompletion)) 298651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines handleUnexpectedCodeCompletionToken(); 299dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 300dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 3048fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopAtCodeCompletion)) 3058fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtCodeCompletion); 3068fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev else 3078fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren); 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 3128fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopAtCodeCompletion)) 3138fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_square, StopAtCodeCompletion); 3148fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev else 3158fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_square); 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3208fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopAtCodeCompletion)) 3218fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_brace, StopAtCodeCompletion); 3228fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev else 3238fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_brace); 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 325a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 3335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 3405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 3425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 3435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 346a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 3495cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 3505cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 3515cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 3535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 35455edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 3568fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopAtSemi)) 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 365a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 3749e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 3759e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 37623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 37723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 3785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 3799c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 3805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 3845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 38523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 3865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 38790ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 38890ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 3896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 390a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 39123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 39223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 393a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3949e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 3959e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 3965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3979e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 3985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4007a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Set the flags for the current scope to ScopeFlags. If ManageFlags is false, 4017a614d8380297fcd2bc23986241905d97222948cRichard Smith/// this object does nothing. 4027a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::ParseScopeFlags(Parser *Self, unsigned ScopeFlags, 4037a614d8380297fcd2bc23986241905d97222948cRichard Smith bool ManageFlags) 4046bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines : CurScope(ManageFlags ? Self->getCurScope() : nullptr) { 4057a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) { 4067a614d8380297fcd2bc23986241905d97222948cRichard Smith OldFlags = CurScope->getFlags(); 4077a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(ScopeFlags); 4087a614d8380297fcd2bc23986241905d97222948cRichard Smith } 4097a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4117a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Restore the flags for the current scope to what they were before this 4127a614d8380297fcd2bc23986241905d97222948cRichard Smith/// object overrode them. 4137a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::~ParseScopeFlags() { 4147a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) 4157a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(OldFlags); 4167a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 4245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 42523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 4266bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Actions.CurScope = nullptr; 4276bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 4285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 4299e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 4309e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 431fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 432651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines resetPragmaHandlers(); 433aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 434056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.removeCommentHandler(CommentSemaHandler.get()); 435aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 436f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 43713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 438b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar if (getLangOpts().DelayedTemplateParsing && 439b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar !PP.isIncrementalProcessingEnabled() && !TemplateIds.empty()) { 440b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar // If an ASTConsumer parsed delay-parsed templates in their 441b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar // HandleTranslationUnit() method, TemplateIds created there were not 442b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar // guarded by a DestroyTemplateIdAnnotationsRAIIObj object in 443b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar // ParseTopLevelDecl(). Destroy them here. 444b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 445b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar } 446b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar 44713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); 4485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 45331e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 4546bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines assert(getCurScope() == nullptr && "A scope is already active?"); 45531e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 456c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 457c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 45834870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 459a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 4604e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1) { 461a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 462a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 463a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 464a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 465a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 466a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 467a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar ObjCTypeQuals[objc_nonnull] = &PP.getIdentifierTable().get("nonnull"); 468a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar ObjCTypeQuals[objc_nullable] = &PP.getIdentifierTable().get("nullable"); 469a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar ObjCTypeQuals[objc_null_unspecified] 470a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar = &PP.getIdentifierTable().get("null_unspecified"); 47134870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 472662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 4736bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_instancetype = nullptr; 4746bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_final = nullptr; 4756bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_sealed = nullptr; 4766bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_override = nullptr; 4771f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 478662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 47982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 480a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Ident_vector = nullptr; 481a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Ident_bool = nullptr; 482a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Ident_pixel = nullptr; 483a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (getLangOpts().AltiVec || getLangOpts().ZVector) { 48482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 4853e3d20b2b26a885fcae855bb0b02dbc42d7c5739Bill Schmidt Ident_bool = &PP.getIdentifierTable().get("bool"); 48682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 487a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (getLangOpts().AltiVec) 488a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Ident_pixel = &PP.getIdentifierTable().get("pixel"); 4890a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4906bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_introduced = nullptr; 4916bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_deprecated = nullptr; 4926bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_obsoleted = nullptr; 4936bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_unavailable = nullptr; 49428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 4956bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident__except = nullptr; 4966bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 4976bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident__exception_code = Ident__exception_info = nullptr; 4986bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident__abnormal_termination = Ident___exception_code = nullptr; 4996bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident___exception_info = Ident___abnormal_termination = nullptr; 5006bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_GetExceptionCode = Ident_GetExceptionInfo = nullptr; 5016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_AbnormalTermination = nullptr; 50228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 5034e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if(getLangOpts().Borland) { 50428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 50528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 50628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 50728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 50828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 50928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 51028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 51128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 51228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 51328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 51428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 51528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 51628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 51728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 51828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 51928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 52028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 52128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 52228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 52328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 524c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor 525c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor Actions.Initialize(); 526c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor 527c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor // Prime the lexer look-ahead. 528c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor ConsumeToken(); 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 531176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hinesvoid Parser::LateTemplateParserCleanupCallback(void *P) { 532176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines // While this RAII helper doesn't bracket any actual work, the destructor will 533176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines // clean up annotations that were created during ActOnEndOfTranslationUnit 534176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines // when incremental processing is enabled. 535176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(((Parser *)P)->TemplateIds); 536176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines} 537176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines 5385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 540682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 54113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 542b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 543651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Skip over the EOF token, flagging end of previous input for incremental 544e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // processing 545e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (PP.isIncrementalProcessingEnabled() && Tok.is(tok::eof)) 546e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann ConsumeToken(); 547e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 54826297f57634994b4ae47a0774c372d6944265bb2Richard Smith Result = DeclGroupPtrTy(); 54926297f57634994b4ae47a0774c372d6944265bb2Richard Smith switch (Tok.getKind()) { 55026297f57634994b4ae47a0774c372d6944265bb2Richard Smith case tok::annot_pragma_unused: 551b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 55226297f57634994b4ae47a0774c372d6944265bb2Richard Smith return false; 553b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 55426297f57634994b4ae47a0774c372d6944265bb2Richard Smith case tok::annot_module_include: 55526297f57634994b4ae47a0774c372d6944265bb2Richard Smith Actions.ActOnModuleInclude(Tok.getLocation(), 55626297f57634994b4ae47a0774c372d6944265bb2Richard Smith reinterpret_cast<Module *>( 55726297f57634994b4ae47a0774c372d6944265bb2Richard Smith Tok.getAnnotationValue())); 55826297f57634994b4ae47a0774c372d6944265bb2Richard Smith ConsumeToken(); 55926297f57634994b4ae47a0774c372d6944265bb2Richard Smith return false; 56026297f57634994b4ae47a0774c372d6944265bb2Richard Smith 561651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_begin: 562b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar Actions.ActOnModuleBegin(Tok.getLocation(), reinterpret_cast<Module *>( 563b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar Tok.getAnnotationValue())); 564b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar ConsumeToken(); 565b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar return false; 566b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar 567651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_end: 568b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar Actions.ActOnModuleEnd(Tok.getLocation(), reinterpret_cast<Module *>( 569b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar Tok.getAnnotationValue())); 570651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ConsumeToken(); 571651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 572651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 57326297f57634994b4ae47a0774c372d6944265bb2Richard Smith case tok::eof: 5748387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 5754e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing) 576176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Actions.SetLateTemplateParser(LateTemplateParserCallback, 577176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines PP.isIncrementalProcessingEnabled() ? 578176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines LateTemplateParserCleanupCallback : nullptr, 579176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines this); 580e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (!PP.isIncrementalProcessingEnabled()) 581e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann Actions.ActOnEndOfTranslationUnit(); 582e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann //else don't tell Sema that we ended parsing: more input might come. 5839299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 58426297f57634994b4ae47a0774c372d6944265bb2Richard Smith 58526297f57634994b4ae47a0774c372d6944265bb2Richard Smith default: 58626297f57634994b4ae47a0774c372d6944265bb2Richard Smith break; 5879299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 588a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5890b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 5904e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 5917f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 592e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 5937f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 59890b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 599c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 600c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 601c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 603c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 610c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 6136b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] empty-declaration 6146b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] attribute-declaration 6155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 6166b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] empty-declaration: 617a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 618a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 61945f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 6207f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 6217f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 6227f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 62313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 62436d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 6257d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 6267d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis if (PP.isCodeCompletionReached()) { 6277d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6287d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 6297d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis } 6307d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 6316bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Decl *SingleDecl = nullptr; 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 633426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola case tok::annot_pragma_vis: 634426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola HandlePragmaVisibility(); 635426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola return DeclGroupPtrTy(); 636aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman case tok::annot_pragma_pack: 637aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman HandlePragmaPack(); 638aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman return DeclGroupPtrTy(); 6399595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_msstruct: 6409595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaMSStruct(); 6419595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6429595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_align: 6439595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaAlign(); 6449595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6459595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weak: 6469595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeak(); 6479595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6489595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weakalias: 6499595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeakAlias(); 6509595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6519595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_redefine_extname: 6529595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaRedefineExtname(); 6539595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6549595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_fp_contract: 6559595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaFPContract(); 6569595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6579595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_opencl_extension: 6589595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaOpenCLExtension(); 6599595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 660c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev case tok::annot_pragma_openmp: 661176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return ParseOpenMPDeclarativeDirective(); 662651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_pragma_ms_pointers_to_members: 663651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines HandlePragmaMSPointersToMembers(); 664651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return DeclGroupPtrTy(); 665651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_pragma_ms_vtordisp: 666651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines HandlePragmaMSVtorDisp(); 667651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return DeclGroupPtrTy(); 6686bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines case tok::annot_pragma_ms_pragma: 6696bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines HandlePragmaMSPragma(); 6706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return DeclGroupPtrTy(); 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 6726b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // Either a C++11 empty-declaration or attribute-declaration. 673684aa73192d92850a926870be62a1787eb5b7ed9Michael Han SingleDecl = Actions.ActOnEmptyDeclaration(getCurScope(), 674684aa73192d92850a926870be62a1787eb5b7ed9Michael Han attrs.getList(), 675684aa73192d92850a926870be62a1787eb5b7ed9Michael Han Tok.getLocation()); 6764b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeExtraSemi(OutsideFunction); 677684aa73192d92850a926870be62a1787eb5b7ed9Michael Han break; 67890b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 679883692ebd421c40b44e2c2665e5f54dade5621bcNico Weber Diag(Tok, diag::err_extraneous_closing_brace); 68090b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 681682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 68290b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 68390b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 684682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 685c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 686c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 687c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 68839146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 6897f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 690c3018153a11afe91849748a93d920040a571b76cChris Lattner } 691dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 6927f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 693bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 69421e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 69521e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 696b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar 69721e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 698a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 699b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar // Check if GNU-style InlineAsm is disabled. 700b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar // Empty asm string is allowed because it will not introduce 701b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar // any assembly code. 702b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar if (!(getLangOpts().GNUAsm || Result.isInvalid())) { 703b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar const auto *SL = cast<StringLiteral>(Result.get()); 704b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar if (!SL->getString().trim().empty()) 705b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar Diag(StartLoc, diag::err_gnu_inline_asm_disabled); 706b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar } 707b6d6993e6e6d3daf4d9876794254d20a134e37c2Pirama Arumuga Nainar 708651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpectAndConsume(tok::semi, diag::err_expected_after, 7093f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 710dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 711682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 712682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 71321e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 714682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 715dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 71795ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian return ParseObjCAtDirectives(); 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 7204e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().ObjC1) { 721682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 722682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 723682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 724682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 725682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 726682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 727791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 72823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 729849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl? Sema::PCC_ObjCImplementation 730f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 7317d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 7327d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 733f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 7348f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 736adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 737adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 738511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 739c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 74026d6023cb0d343bf8fc8836f97d39709bbd4afa0Chad Rosier // A function definition cannot start with any of these keywords. 74197144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 74297144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 743176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return ParseDeclaration(Declarator::FileContext, DeclEnd, attrs); 74497144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 745d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 7467306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 7477306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 7487306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7494e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 7507306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7517306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 752d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 753176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return ParseDeclaration(Declarator::FileContext, DeclEnd, attrs); 7547306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7557306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 7567306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7577306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 7584e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 7597306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 7607306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7617306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 7627306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 7637306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 764176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return ParseDeclaration(Declarator::FileContext, DeclEnd, attrs); 7657306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7667306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7677306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 7687306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7697306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 7707306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7717306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 7727306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 773176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines return ParseDeclaration(Declarator::FileContext, DeclEnd, attrs); 7747306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 775d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 776d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 777d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 77845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 7794e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 78045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 78145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 78245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 78380ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith Diag(ExternLoc, getLangOpts().CPlusPlus11 ? 7849324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::warn_cxx98_compat_extern_template : 7859324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); 78645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 78745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 7889241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ParseExplicitInstantiation(Declarator::FileContext, 7899241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ExternLoc, TemplateLoc, DeclEnd)); 79045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 791d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 7921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 793f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 794f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 795563a645de82231a55e221fe655b7188bf8369662Francois Pichet ParseMicrosoftIfExistsExternalDeclaration(); 796f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 7976aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 799d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 80120af49a7c5bdb6cca5f4d6586106ef1ce8579311Rafael Espindola return ParseDeclarationOrFunctionDefinition(attrs, DS); 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 804682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 805682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 806682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 8075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8091426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 8101426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 811e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 812e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 8134e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 814e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 815e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 816e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 817e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 8186c89eafc90f5c51a0bf185a993961170aee530c2Fariborz Jahanian 8191426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 8201426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 8211426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 8221426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 8231426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 8244e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().CPlusPlus && 82539700f81c5b42e6be93be10275602915f872fc86Fariborz Jahanian Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 8261426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 8271426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 8281426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 8291426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 830004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 831075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 8325d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 8335d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 8345d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 835004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 8364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus && 837075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 838004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 839e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 8404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 841e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 842e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 843e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 844004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 8455d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 8465d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 8471426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 8481426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 851c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 852c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 8531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 856a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 857a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 858a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 859a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 861697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 862697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 865682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 8662edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclOrFunctionDefInternal(ParsedAttributesWithRange &attrs, 8672edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec &DS, 8682edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt AccessSpecifier AS) { 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 8700efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 871a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 872f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling // If we had a free-standing type definition with a missing semicolon, we 873f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling // may get this far before the problem becomes obvious. 874f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling if (DS.hasTagDefinition() && 875f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling DiagnoseMissingSemiAfterTagDefinition(DS, AS, DSC_top_level)) 876f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling return DeclGroupPtrTy(); 877f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 880000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 8812edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 883d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 88454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 885682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 887a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8882edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt DS.takeAttributesFrom(attrs); 8892edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 890246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 891246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 892246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 8934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC2 && Tok.is(tok::at)) { 894dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 8951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 896246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 897246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 898cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 899682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 900cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 901d8ac05753dc4506224d445ff98399c01da3136e5John McCall 90254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 90354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 9046bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const char *PrevSpec = nullptr; 905fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 906651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID, 907651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Actions.getASTContext().getPrintingPolicy())) 908fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 9091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 910246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 911bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 912bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 913bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return Actions.ConvertDeclToDeclGroup( 914bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes())); 915dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 916a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 917c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 918c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 919c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 920651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (getLangOpts().CPlusPlus && isTokenStringLiteral() && 921c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 922682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 923d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 924682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 925682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 926c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 9270e2c34f92f00628d48968dfea096d36381f494cbStephen Hines return ParseDeclGroup(DS, Declarator::FileContext); 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9303acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 9312edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclarationOrFunctionDefinition(ParsedAttributesWithRange &attrs, 9322edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec *DS, 9333acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 9342edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt if (DS) { 9352edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, *DS, AS); 9362edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } else { 9372edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec PDS(*this); 9382edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // Must temporarily exit the objective-c container scope for 9392edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // parsing c constructs and re-enter objc container scope 9402edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // afterwards. 9412edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ObjCDeclContextSwitch ObjCDC(*this); 9422edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 9432edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, PDS, AS); 9442edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } 9453acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 9463acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 951a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 952a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 953a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 954a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 9557ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 95623c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 95723c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 9587ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 959d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 961d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 962c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins const ParsedTemplateInfo &TemplateInfo, 963c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins LateParsedAttrList *LateParsedAttrs) { 9640e2c34f92f00628d48968dfea096d36381f494cbStephen Hines // Poison SEH identifiers so they are flagged as illegal in function bodies. 96528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 966075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 967a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 968a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 969a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 970a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 9714e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ImplicitInt && D.getDeclSpec().isEmpty()) { 972a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 973fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 974651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const PrintingPolicy &Policy = Actions.getASTContext().getPrintingPolicy(); 97531c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 97631c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 977651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines PrevSpec, DiagID, 978651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Policy); 979ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 980a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 981a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 985004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9887ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 9897ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 990758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 9914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!getLangOpts().CPlusPlus || 992cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && 993cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Tok.isNot(tok::equal)))) { 9945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 9978fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::l_brace, StopAtSemi | StopBeforeMatch); 998a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 1000000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 10016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1003a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1004c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Check to make sure that any normal attributes are allowed to be on 1005c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // a definition. Late parsed attributes are checked at the end. 1006c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (Tok.isNot(tok::equal)) { 1007c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins AttributeList *DtorAttrs = D.getAttributes(); 1008c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins while (DtorAttrs) { 1009651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DtorAttrs->isKnownToGCC() && 1010cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith !DtorAttrs->isCXX11Attribute()) { 1011c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins Diag(DtorAttrs->getLoc(), diag::warn_attribute_on_function_definition) 1012651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << DtorAttrs->getName(); 1013c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 1014c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins DtorAttrs = DtorAttrs->getNext(); 1015c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 1016c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 1017c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 10188387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 10198387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 1020645526c3e42170e356f792b1bc0ac2acb65c26c4David Majnemer if (getLangOpts().DelayedTemplateParsing && Tok.isNot(tok::equal) && 1021645526c3e42170e356f792b1bc0ac2acb65c26c4David Majnemer TemplateInfo.Kind == ParsedTemplateInfo::Template && 1022651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Actions.canDelayFunctionBody(D)) { 10235354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg TemplateParameterLists(*TemplateInfo.TemplateParams); 10248387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 10258387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 10268387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 10278387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 102845fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(FDK_Definition); 10298387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 10303fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer TemplateParameterLists); 10318387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 10328387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 10338387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1034ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith CachedTokens Toks; 1035ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith LexTemplateFunctionForLateParsing(Toks); 10368387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1037ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith if (DP) { 1038651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FunctionDecl *FnD = DP->getAsFunction(); 1039ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith Actions.CheckForFunctionRedefinition(FnD); 1040ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith Actions.MarkAsLateParsedTemplate(FnD, DP, Toks); 10418387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10428387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 10438387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10442eb362b50f34296c39d5ec3e5e1bd6a2c9a5877eFariborz Jahanian else if (CurParsedObjCImpl && 10459e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian !TemplateInfo.TemplateParams && 10469e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian (Tok.is(tok::l_brace) || Tok.is(tok::kw_try) || 10479e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian Tok.is(tok::colon)) && 1048be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Actions.CurContext->isTranslationUnit()) { 1049be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1050be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Scope *ParentScope = getCurScope()->getParent(); 1051651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1052be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.setFunctionDefinitionKind(FDK_Definition); 1053be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Decl *FuncDecl = Actions.HandleDeclarator(ParentScope, D, 10545354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg()); 1055be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.complete(FuncDecl); 1056be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.getMutableDeclSpec().abort(); 1057be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian if (FuncDecl) { 1058be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian // Consume the tokens and store them for later parsing. 1059be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian StashAwayMethodOrFunctionBodyTokens(FuncDecl); 1060be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian CurParsedObjCImpl->HasCFunction = true; 1061be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian return FuncDecl; 1062be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1063651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // FIXME: Should we really fall through here? 1064be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1065651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1066b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 10678935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1068a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1069b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 1070b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 1071a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Sema::SkipBodyInfo SkipBody; 1072a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Decl *Res = Actions.ActOnStartOfFunctionDef(getCurScope(), D, 1073a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar TemplateInfo.TemplateParams 1074a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar ? *TemplateInfo.TemplateParams 1075a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar : MultiTemplateParamsArg(), 1076a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar &SkipBody); 1077a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 1078a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (SkipBody.ShouldSkip) { 1079a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SkipFunctionBody(); 1080a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar return Res; 1081a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar } 1082a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 108354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 108454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 108554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 108654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 108754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 108854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 108954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 1090651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TryConsumeToken(tok::equal)) { 10914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Only C++ function definitions have '='"); 10926bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 1093cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt bool Delete = false; 1094cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SourceLocation KWLoc; 1095651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TryConsumeToken(tok::kw_delete, KWLoc)) { 1096651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(KWLoc, getLangOpts().CPlusPlus11 1097a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar ? diag::warn_cxx98_compat_defaulted_deleted_function 1098a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar : diag::ext_defaulted_deleted_function) 1099a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar << 1 /* deleted */; 1100cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDeleted(Res, KWLoc); 1101cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete = true; 1102651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (TryConsumeToken(tok::kw_default, KWLoc)) { 1103651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(KWLoc, getLangOpts().CPlusPlus11 1104a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar ? diag::warn_cxx98_compat_defaulted_deleted_function 1105a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar : diag::ext_defaulted_deleted_function) 1106a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar << 0 /* defaulted */; 1107cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDefaulted(Res, KWLoc); 1108cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1109cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 1110cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1111cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1112cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::comma)) { 1113cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 1114cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt << Delete; 1115cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SkipUntil(tok::semi); 1116651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (ExpectAndConsume(tok::semi, diag::err_expected_after, 1117651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Delete ? "delete" : "default")) { 1118651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SkipUntil(tok::semi); 1119cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1120cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 11213ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar Stmt *GeneratedBody = Res ? Res->getBody() : nullptr; 11223ea9e33ea25e0c2b12db56418ba3f994eb662c04Pirama Arumuga Nainar Actions.ActOnFinishFunctionBody(Res, GeneratedBody, false); 1123cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt return Res; 1124cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1125cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1126d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 1127c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 1128d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 11297ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 11307ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 1131d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 11327ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 1133d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 1134d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 1135d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 1136c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 11376bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Actions.ActOnFinishFunctionBody(Res, nullptr); 1138d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 1139d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 1140d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 1141393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 11427ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 1143c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Late attributes are parsed in the same scope as the function body. 1144c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (LateParsedAttrs) 1145c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins ParseLexedAttributeList(*LateParsedAttrs, Res, false, true); 1146c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 1147c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1150a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainarvoid Parser::SkipFunctionBody() { 1151a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (Tok.is(tok::equal)) { 1152a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SkipUntil(tok::semi); 1153a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar return; 1154a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar } 1155a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 1156a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar bool IsFunctionTryBlock = Tok.is(tok::kw_try); 1157a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (IsFunctionTryBlock) 1158a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar ConsumeToken(); 1159a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 1160a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar CachedTokens Skipped; 1161a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (ConsumeAndStoreFunctionPrologue(Skipped)) 1162a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SkipMalformedDecl(); 1163a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar else { 1164a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SkipUntil(tok::r_brace); 1165a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar while (IsFunctionTryBlock && Tok.is(tok::kw_catch)) { 1166a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SkipUntil(tok::l_brace); 1167a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SkipUntil(tok::r_brace); 1168a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar } 1169a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar } 1170a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar} 1171a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 1176075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 117804421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 117904421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 11803a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope | 11813a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith Scope::FunctionDeclarationScope | Scope::DeclScope); 118204421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 1186a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 11880b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1190a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1196651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TryConsumeToken(tok::semi)) { 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1200a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1209ec64244f5939fa81596fbeddad966cca4b4a4c51Richard Smith if (DS.getThreadStorageClassSpec() != DeclSpec::TSCS_unspecified) { 1210ec64244f5939fa81596fbeddad966cca4b4a4c51Richard Smith Diag(DS.getThreadStorageClassSpecLoc(), 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1214a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 12215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 12227f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 1223a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 1225d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 122623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 1227152b4e4652baedfceba1cd8115515629225e713fManuel Klimek 1228a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 12295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 1237651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (i == FTI.NumParams) { 12381ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 12396898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1242a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1243651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (FTI.Params[i].Ident == ParmDeclarator.getIdentifier()) { 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 1245651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (FTI.Params[i].Param) { 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 12471ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 12486898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 1250651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FTI.Params[i].Param = Param; 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 12585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 1259000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 1261a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12627984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.clear(); 12637984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith 12645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 12657984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.setCommaLoc(ConsumeToken()); 1266a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1270a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1271651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Consume ';' and continue parsing. 1272651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!ExpectAndConsumeSemi(diag::err_expected_semi_declaration)) 1273651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines continue; 1274651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1275651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Otherwise recover by skipping to next semi or mandatory function body. 1276651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (SkipUntil(tok::l_brace, StopAtSemi | StopBeforeMatch)) 1277651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines break; 1278651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TryConsumeToken(tok::semi); 12795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1280a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 128223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 12885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 12905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 12915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1292176edba5311f6eff0cad2631449885ddf4fbc9eaStephen HinesExprResult Parser::ParseAsmStringLiteral() { 12930e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (!isTokenStringLiteral()) { 12940e2c34f92f00628d48968dfea096d36381f494cbStephen Hines Diag(Tok, diag::err_expected_string_literal) 12950e2c34f92f00628d48968dfea096d36381f494cbStephen Hines << /*Source='in...'*/0 << "'asm'"; 12960e2c34f92f00628d48968dfea096d36381f494cbStephen Hines return ExprError(); 12970e2c34f92f00628d48968dfea096d36381f494cbStephen Hines } 12980e2c34f92f00628d48968dfea096d36381f494cbStephen Hines 12990e2c34f92f00628d48968dfea096d36381f494cbStephen Hines ExprResult AsmString(ParseStringLiteralExpression()); 13000e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (!AsmString.isInvalid()) { 13010e2c34f92f00628d48968dfea096d36381f494cbStephen Hines const auto *SL = cast<StringLiteral>(AsmString.get()); 13020e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (!SL->isAscii()) { 13037f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_asm_operand_wide_string_literal) 13040e2c34f92f00628d48968dfea096d36381f494cbStephen Hines << SL->isWide() 13050e2c34f92f00628d48968dfea096d36381f494cbStephen Hines << SL->getSourceRange(); 13067f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 13077f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek } 13085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13090e2c34f92f00628d48968dfea096d36381f494cbStephen Hines return AsmString; 13105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 13135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 13145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 13155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 13165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1317176edba5311f6eff0cad2631449885ddf4fbc9eaStephen HinesExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1318000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1319dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1320a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 13217a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1322841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1323841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1324841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1325841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1326841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1327849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 13287a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 13297a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 13307a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 13314a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 13324a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 13331ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 133461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 13355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1336a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 133760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1338a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1339651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!Result.isInvalid()) { 13404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Close the paren and get the location of the end bracket 13414a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1342ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 13434a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor *EndLoc = T.getCloseLocation(); 1344651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (SkipUntil(tok::r_paren, StopAtSemi | StopBeforeMatch)) { 1345651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (EndLoc) 1346651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines *EndLoc = Tok.getLocation(); 1347651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ConsumeParen(); 1348ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1349a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 13503fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 13515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 135325a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// \brief Get the TemplateIdAnnotation from the token and put it in the 135425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// cleanup pool so that it gets destroyed when parsing the current top level 135525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// declaration is finished. 135625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios KyrtzidisTemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { 135725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis assert(tok.is(tok::annot_template_id) && "Expected template-id token"); 135825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation * 135925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); 136025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis return Id; 136125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis} 136225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis 13630576681bac125be07f77f66b02a3dba2c3a24557Richard Smithvoid Parser::AnnotateScopeToken(CXXScopeSpec &SS, bool IsNewAnnotation) { 13640576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Push the current token back into the token stream (or revert it if it is 13650576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // cached) and use an annotation scope token for current token. 13660576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (PP.isBacktrackEnabled()) 13670576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.RevertCachedTokens(1); 13680576681bac125be07f77f66b02a3dba2c3a24557Richard Smith else 13690576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.EnterToken(Tok); 13700576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_cxxscope); 13710576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 13720576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationRange(SS.getRange()); 13730576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13740576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // In case the tokens were cached, have Preprocessor replace them 13750576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // with the annotation token. We don't need to do this if we've 13760576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // just reverted back to a prior state. 13770576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (IsNewAnnotation) 13780576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 13790576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 13800576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Attempt to classify the name at the current token position. This may 13820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// form a type, scope or primary expression annotation, or replace the token 13830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// with a typo-corrected keyword. This is only appropriate when the current 13840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// name must refer to an entity which has already been declared. 13850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// 13860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param IsAddressOfOperand Must be \c true if the name is preceded by an '&' 13870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// and might possibly have a dependent nested name specifier. 13880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param CCC Indicates how to perform typo-correction for this name. If NULL, 13890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// no typo correction will be performed. 13900576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::AnnotatedNameKind 13910576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::TryAnnotateName(bool IsAddressOfOperand, 1392176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines std::unique_ptr<CorrectionCandidateCallback> CCC) { 13930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith assert(Tok.is(tok::identifier) || Tok.is(tok::annot_cxxscope)); 13940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13950576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool EnteringContext = false; 13960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 13970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec SS; 13990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (getLangOpts().CPlusPlus && 14000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 14010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 14020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Tok.isNot(tok::identifier) || SS.isInvalid()) { 14040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 14050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 14060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 14070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 14080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IdentifierInfo *Name = Tok.getIdentifierInfo(); 14110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SourceLocation NameLoc = Tok.getLocation(); 14120576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // FIXME: Move the tentative declaration logic into ClassifyName so we can 14140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // typo-correct to tentatively-declared identifiers. 14150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (isTentativelyDeclared(Name)) { 14160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Identifier has been tentatively declared, and thus cannot be resolved as 14170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // an expression. Fall back to annotating it as a type. 14180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 14190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 14200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 14210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return Tok.is(tok::annot_typename) ? ANK_Success : ANK_TentativeDecl; 14220576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14230576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Token Next = NextToken(); 14250576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14260576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Look up and classify the identifier. We don't perform any typo-correction 14270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // after a scope specifier, because in general we can't recover from typos 1428651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // there (eg, after correcting 'A::tempalte B<X>::C' [sic], we would need to 1429651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // jump back into scope specifier parsing). 1430176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Sema::NameClassification Classification = Actions.ClassifyName( 1431176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines getCurScope(), SS, Name, NameLoc, Next, IsAddressOfOperand, 1432176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines SS.isEmpty() ? std::move(CCC) : nullptr); 14330576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14340576681bac125be07f77f66b02a3dba2c3a24557Richard Smith switch (Classification.getKind()) { 14350576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Error: 14360576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 14370576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14380576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Keyword: 14390576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // The identifier was typo-corrected to a keyword. 14400576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setIdentifierInfo(Name); 14410576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(Name->getTokenID()); 14420576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.TypoCorrectToken(Tok); 14430576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14440576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14450576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We've "annotated" this as a keyword. 14460576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14470576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14480576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Unknown: 14490576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // It's not something we know about. Leave it unannotated. 14500576681bac125be07f77f66b02a3dba2c3a24557Richard Smith break; 14510576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 1452a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar case Sema::NC_Type: { 1453a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SourceLocation BeginLoc = NameLoc; 14540576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 1455a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar BeginLoc = SS.getBeginLoc(); 1456a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 1457a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar /// An Objective-C object type followed by '<' is a specialization of 1458a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar /// a parameterized class type or a protocol-qualified type. 1459a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar ParsedType Ty = Classification.getType(); 1460a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (getLangOpts().ObjC1 && NextToken().is(tok::less) && 1461a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar (Ty.get()->isObjCObjectType() || 1462a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Ty.get()->isObjCObjectPointerType())) { 1463a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar // Consume the name. 1464a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SourceLocation IdentifierLoc = ConsumeToken(); 1465a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SourceLocation NewEndLoc; 1466a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar TypeResult NewType 1467a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar = parseObjCTypeArgsAndProtocolQualifiers(IdentifierLoc, Ty, 1468a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar /*consumeLastToken=*/false, 1469a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar NewEndLoc); 1470a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (NewType.isUsable()) 1471a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Ty = NewType.get(); 1472a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar } 1473a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 1474a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Tok.setKind(tok::annot_typename); 1475a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar setTypeAnnotation(Tok, Ty); 1476a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Tok.setAnnotationEndLoc(Tok.getLocation()); 1477a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Tok.setLocation(BeginLoc); 14780576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 14790576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 1480a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar } 14810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Expression: 14830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_primary_expr); 14840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setExprAnnotation(Tok, Classification.getExpression()); 14850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 14860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 14880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 14890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_TypeTemplate: 14920576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Next.isNot(tok::less)) { 14930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // This may be a type template being used as a template template argument. 14940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14950576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_TemplateName; 14970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Fall through. 1499ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo case Sema::NC_VarTemplate: 15000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_FunctionTemplate: { 1501ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo // We have a type, variable or function template followed by '<'. 15020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ConsumeToken(); 15030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith UnqualifiedId Id; 15040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Id.setIdentifier(Name, NameLoc); 15050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (AnnotateTemplateIdToken( 15060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith TemplateTy::make(Classification.getTemplateName()), 15070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Classification.getTemplateNameKind(), SS, SourceLocation(), Id)) 15080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 15090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 15100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 15110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15120576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_NestedNameSpecifier: 15130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith llvm_unreachable("already parsed nested name specifier"); 15140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 15150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Unable to classify the name, but maybe we can annotate a scope specifier. 15170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 15180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 15190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 15200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 15210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 152203e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendlingbool Parser::TryKeywordIdentFallback(bool DisableKeyword) { 1523176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines assert(Tok.isNot(tok::identifier)); 152403e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling Diag(Tok, diag::ext_keyword_as_ident) 152503e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling << PP.getSpelling(Tok) 152603e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling << DisableKeyword; 1527176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines if (DisableKeyword) 1528a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Tok.getIdentifierInfo()->revertTokenIDToIdentifier(); 152903e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling Tok.setKind(tok::identifier); 153003e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling return true; 153103e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling} 153203e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling 1533eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1534eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1535eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1536eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1537eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1538eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1539eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1540eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 154144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 154244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 154344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 154444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 154544802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1546b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 154744802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 154844802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 154944802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1550a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 15519ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 15521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 155355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 155455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1555fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrainbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { 1556176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 1557176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope) || 1558176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Tok.is(tok::kw_decltype) || Tok.is(tok::annot_template_id) || 1559176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Tok.is(tok::kw___super)) && 1560176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines "Cannot be a type or scope token!"); 15611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1562d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 156367ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // MSVC lets you do stuff like: 156467ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // typename typedef T_::D D; 156567ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // 156667ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // We will consume the typedef token here and put it back after we have 156767ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // parsed the first identifier, transforming it into something more like: 156867ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // typename T_::D typedef D; 1569651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (getLangOpts().MSVCCompat && NextToken().is(tok::kw_typedef)) { 157067ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Token TypedefToken; 157167ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer PP.Lex(TypedefToken); 157267ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer bool Result = TryAnnotateTypeOrScopeToken(EnteringContext, NeedType); 157367ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer PP.EnterToken(Tok); 157467ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Tok = TypedefToken; 157567ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer if (!Result) 157667ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Diag(Tok.getLocation(), diag::warn_expected_qualified_after_typename); 157767ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer return Result; 157867ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer } 157967ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer 1580d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1581d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1582d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1583d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 15841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 15851734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1586d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1587d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 1588efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), 1589efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false, 15906bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, /*IsTypename*/ true)) 15919ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15929ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 1593b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::identifier) || Tok.is(tok::annot_template_id) || 1594b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet Tok.is(tok::annot_decltype)) { 159523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // Attempt to recover by skipping the invalid 'typename' 1596b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::annot_decltype) || 1597b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet (!TryAnnotateTypeOrScopeToken(EnteringContext, NeedType) && 159867ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Tok.isAnnotation())) { 159923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith unsigned DiagID = diag::err_expected_qualified_after_typename; 160023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // MS compatibility: MSVC permits using known types with typename. 160123756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // e.g. "typedef typename T* pointer_type" 160223756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith if (getLangOpts().MicrosoftExt) 160323756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith DiagID = diag::warn_expected_qualified_after_typename; 160423756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), DiagID); 160523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith return false; 160623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 160723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 160823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith 160923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 16109ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1611d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1612d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1613d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1614d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1615d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 161623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 16171a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1618d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 16191734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 162025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1621651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TemplateId->Kind != TNK_Type_template && 1622651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TemplateId->Kind != TNK_Dependent_template_name) { 16231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 16241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 16259ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 16261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1627d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 16285354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), 1629a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 163066581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara 1631a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 163266581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateId->TemplateKWLoc, 1633a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1634a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1635a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 163666581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateArgsPtr, 1637a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 16381734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 16391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 16401734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 16419ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 16421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 16431734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 164439d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 16451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1646b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 164739d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 16481734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 16491734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 16509ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1651d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1652d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1653ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 16540576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1655ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1656eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 16574e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 1658b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 16599ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1660eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 16610576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, NeedType, 16620576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SS, !WasScopeAnnotation); 16630576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 16640576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16650576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Try to annotate a type or scope token, having already parsed an 16660576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// optional scope specifier. \p IsNewScope should be \c true unless the scope 16670576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// specifier was extracted from an existing tok::annot_cxxscope annotation. 16680576681bac125be07f77f66b02a3dba2c3a24557Richard Smithbool Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(bool EnteringContext, 16690576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool NeedType, 16700576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec &SS, 16710576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool IsNewScope) { 1672eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 16736bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines IdentifierInfo *CorrectedII = nullptr; 1674608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1675b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1676b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 16771e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 16789e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 16799e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 1680fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/false, 16816bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*NonTrivialTypeSourceInfo*/ true, 16826bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NeedType ? &CorrectedII 16836bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines : nullptr)) { 1684fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain // A FixIt was applied as a result of typo correction 1685fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain if (CorrectedII) 1686fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain Tok.setIdentifierInfo(CorrectedII); 1687a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 1688a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SourceLocation BeginLoc = Tok.getLocation(); 1689a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (SS.isNotEmpty()) // it was a C++ qualified type name. 1690a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar BeginLoc = SS.getBeginLoc(); 1691a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 1692a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar /// An Objective-C object type followed by '<' is a specialization of 1693a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar /// a parameterized class type or a protocol-qualified type. 1694a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (getLangOpts().ObjC1 && NextToken().is(tok::less) && 1695a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar (Ty.get()->isObjCObjectType() || 1696a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Ty.get()->isObjCObjectPointerType())) { 1697a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar // Consume the name. 1698a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SourceLocation IdentifierLoc = ConsumeToken(); 1699a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar SourceLocation NewEndLoc; 1700a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar TypeResult NewType 1701a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar = parseObjCTypeArgsAndProtocolQualifiers(IdentifierLoc, Ty, 1702a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar /*consumeLastToken=*/false, 1703a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar NewEndLoc); 1704a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (NewType.isUsable()) 1705a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Ty = NewType.get(); 1706a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar } 1707a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 1708608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1709608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1710b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1711b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1712608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1713a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Tok.setLocation(BeginLoc); 17141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1715608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1716608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1717608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 17189ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 17191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 172039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 17214e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 1722608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1723608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 17241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1725608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1726eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 17271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 172839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 172955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 17307532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1731014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1732014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 17331fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 17341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 17357c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 17367c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1737b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1738b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 17397c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1740ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1741ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1742e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 1743e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName)) { 1744c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1745c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1746c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 17479ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1748c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1749ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 175055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1751d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 175239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 175339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 175439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 175539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 17561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1757eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 175839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 175925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1760c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 176139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 176239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 176339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 176439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1765059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 17669ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1767651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 176839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1769d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 17706ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 17719ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 17721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17736ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 17740576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, IsNewScope); 17759ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1776eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1777eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1778eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 177939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 178083a22ecbf52c06b4ee364f3fadcdb0abaf2dabf6Richard Smith/// true if there was an error that could not be recovered from. 17811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 178255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 178355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1784495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 17854e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 17866ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 17873b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 178842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) || 1789176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines Tok.is(tok::kw_decltype) || Tok.is(tok::kw___super)) && 1790176edba5311f6eff0cad2631449885ddf4fbc9eaStephen Hines "Cannot be a type or scope token!"); 1791eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 17924bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1793b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 17949ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1795edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 17969ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1797eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 17980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, true); 17999ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1800eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 18016c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1802fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieubool Parser::isTokenEqualOrEqualTypo() { 1803fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu tok::TokenKind Kind = Tok.getKind(); 1804fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu switch (Kind) { 1805fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu default: 1806d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu return false; 1807fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::ampequal: // &= 1808fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::starequal: // *= 1809fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::plusequal: // += 1810fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::minusequal: // -= 1811fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::exclaimequal: // != 1812fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::slashequal: // /= 1813fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::percentequal: // %= 1814fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lessequal: // <= 1815fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lesslessequal: // <<= 1816fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greaterequal: // >= 1817fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greatergreaterequal: // >>= 1818fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::caretequal: // ^= 1819fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::pipeequal: // |= 1820fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equalequal: // == 1821fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu Diag(Tok, diag::err_invalid_token_after_declarator_suggest_equal) 1822651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << Kind 1823651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), "="); 1824fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equal: 1825fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu return true; 1826fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu } 1827a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1828a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 18297d100872341f233c81e1d7b72b40457e62c36862Argyrios KyrtzidisSourceLocation Parser::handleUnexpectedCodeCompletionToken() { 18307d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis assert(Tok.is(tok::code_completion)); 18317d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis PrevTokLocation = Tok.getLocation(); 18327d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 183323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1834dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 18350e2c34f92f00628d48968dfea096d36381f494cbStephen Hines Actions.CodeCompleteOrdinaryName(getCurScope(), 18360e2c34f92f00628d48968dfea096d36381f494cbStephen Hines Sema::PCC_RecoveryInFunction); 18377d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 18387d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1839dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1840dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1841dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1842f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 18437d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 18447d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1845dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1846dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1847dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1848f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 18497d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 18507d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1851dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1852dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1853f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1854f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1855f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1856f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1857f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1858f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1859f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1860f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1861f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 18621fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 18631fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1864f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1865f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1866f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1867f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1868f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1869f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1870f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1871f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1872f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1873f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 18740e2c34f92f00628d48968dfea096d36381f494cbStephen Hines Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1875f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 18761fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 187755817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 187855817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 187955817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 188055817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1881f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18823896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregorbool Parser::ParseMicrosoftIfExistsCondition(IfExistsCondition& Result) { 1883f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 1884f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 18853896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.IsIfExists = Tok.is(tok::kw___if_exists); 18863896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.KeywordLoc = ConsumeToken(); 1887f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18884a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 18894a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 18903896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Diag(Tok, diag::err_expected_lparen_after) 18913896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor << (Result.IsIfExists? "__if_exists" : "__if_not_exists"); 1892f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1893f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1894f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1895f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 18960e2c34f92f00628d48968dfea096d36381f494cbStephen Hines if (getLangOpts().CPlusPlus) 18970e2c34f92f00628d48968dfea096d36381f494cbStephen Hines ParseOptionalCXXScopeSpecifier(Result.SS, ParsedType(), 18980e2c34f92f00628d48968dfea096d36381f494cbStephen Hines /*EnteringContext=*/false); 1899f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1900f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 19013896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Result.SS.isInvalid()) { 19023896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1903f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1904f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1905f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1906e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // Parse the unqualified-id. 1907e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; // FIXME: parsed, but unused. 1908e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(Result.SS, false, true, true, ParsedType(), 1909e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, Result.Name)) { 19103896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1911f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1912f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1913f986038beed360c031de8654cfba43a5d3184605Francois Pichet 19143896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (T.consumeClose()) 1915f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 19163896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1917f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 191865019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor switch (Actions.CheckMicrosoftIfExistsSymbol(getCurScope(), Result.KeywordLoc, 19190e2c34f92f00628d48968dfea096d36381f494cbStephen Hines Result.IsIfExists, Result.SS, 19203896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Name)) { 19213896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Exists: 19223896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = Result.IsIfExists ? IEB_Parse : IEB_Skip; 19233896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 1924f986038beed360c031de8654cfba43a5d3184605Francois Pichet 19253896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_DoesNotExist: 19263896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = !Result.IsIfExists ? IEB_Parse : IEB_Skip; 19273896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 19283896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 19293896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Dependent: 19303896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = IEB_Dependent; 19313896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 193265019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor 193365019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor case Sema::IER_Error: 193465019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor return true; 19353896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 1936f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1937f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 1938f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1939f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1940563a645de82231a55e221fe655b7188bf8369662Francois Pichetvoid Parser::ParseMicrosoftIfExistsExternalDeclaration() { 19413896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor IfExistsCondition Result; 1942f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 1943f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1944f986038beed360c031de8654cfba43a5d3184605Francois Pichet 19453896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor BalancedDelimiterTracker Braces(*this, tok::l_brace); 19463896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Braces.consumeOpen()) { 1947651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Tok, diag::err_expected) << tok::l_brace; 1948f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1949f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1950f986038beed360c031de8654cfba43a5d3184605Francois Pichet 19513896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor switch (Result.Behavior) { 19523896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Parse: 19533896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse declarations below. 19543896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 19553896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 19563896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Dependent: 19573896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor llvm_unreachable("Cannot have a dependent external declaration"); 19583896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 19593896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Skip: 19603896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.skipToEnd(); 1961f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1962f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1963f986038beed360c031de8654cfba43a5d3184605Francois Pichet 19643896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse the declarations. 1965651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // FIXME: Support module import within __if_exists? 1966651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines while (Tok.isNot(tok::r_brace) && !isEofOrEom()) { 1967f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 19684e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 1969f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 1970f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 1971f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 1972f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 1973651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 19743896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.consumeClose(); 1975f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 19766aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 19775948ae1021122164b22f74353bb7fe325a64f616Douglas GregorParser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) { 19781b257afbae854c6817f26b7d61c4fed8ff7aebadDouglas Gregor assert(Tok.isObjCAtKeyword(tok::objc_import) && 197965030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor "Improper start to module import"); 19806aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ImportLoc = ConsumeToken(); 19816aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 1982cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path; 19833d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 19843d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Parse the module path. 19853d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor do { 19863d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (!Tok.is(tok::identifier)) { 1987c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor if (Tok.is(tok::code_completion)) { 1988c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor Actions.CodeCompleteModuleImport(ImportLoc, Path); 19896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines cutOffParsing(); 1990c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor return DeclGroupPtrTy(); 1991c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor } 1992c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor 19933d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Diag(Tok, diag::err_module_expected_ident); 19943d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor SkipUntil(tok::semi); 19953d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor return DeclGroupPtrTy(); 19963d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 19973d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 19983d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Record this part of the module path. 19993d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Path.push_back(std::make_pair(Tok.getIdentifierInfo(), Tok.getLocation())); 20003d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 20013d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 20023d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (Tok.is(tok::period)) { 20033d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 20043d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor continue; 20053d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 20063d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 20073d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor break; 20083d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } while (true); 20093b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis 20103b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis if (PP.hadModuleLoaderFatalFailure()) { 20113b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis // With a fatal failure in the module loader, we abort parsing. 20123b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis cutOffParsing(); 20133b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis return DeclGroupPtrTy(); 20143b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis } 20153b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis 20165948ae1021122164b22f74353bb7fe325a64f616Douglas Gregor DeclResult Import = Actions.ActOnModuleImport(AtLoc, ImportLoc, Path); 20176aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor ExpectAndConsumeSemi(diag::err_module_expected_semi); 20186aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (Import.isInvalid()) 20196aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 20206aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 20216aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return Actions.ConvertDeclToDeclGroup(Import.get()); 20226aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor} 20234a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 2024a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar/// \brief Try recover parser when module annotation appears where it must not 2025a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar/// be found. 2026a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar/// \returns false if the recover was successful and parsing may be continued, or 2027a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar/// true if parser must bail out to top level and handle the token there. 2028a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainarbool Parser::parseMisplacedModuleImport() { 2029a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar while (true) { 2030a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar switch (Tok.getKind()) { 2031a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar case tok::annot_module_end: 2032a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar // Inform caller that recovery failed, the error must be handled at upper 2033a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar // level. 2034a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar return true; 2035a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar case tok::annot_module_begin: 2036a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Actions.diagnoseMisplacedModuleImport(reinterpret_cast<Module *>( 2037a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Tok.getAnnotationValue()), Tok.getLocation()); 2038a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar return true; 2039a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar case tok::annot_module_include: 2040a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar // Module import found where it should not be, for instance, inside a 2041a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar // namespace. Recover by importing the module. 2042a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Actions.ActOnModuleInclude(Tok.getLocation(), 2043a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar reinterpret_cast<Module *>( 2044a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar Tok.getAnnotationValue())); 2045a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar ConsumeToken(); 2046a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar // If there is another module import, process it. 2047a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar continue; 2048a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar default: 2049a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar return false; 2050a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar } 2051a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar } 2052a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar return false; 2053a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar} 2054a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar 2055c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseOverflow() { 20569e738cc9d4b4655c44dadeb22f3a314daf43b995Richard Smith P.Diag(P.Tok, diag::err_bracket_depth_exceeded) 20579e738cc9d4b4655c44dadeb22f3a314daf43b995Richard Smith << P.getLangOpts().BracketDepth; 20589e738cc9d4b4655c44dadeb22f3a314daf43b995Richard Smith P.Diag(P.Tok, diag::note_bracket_depth); 2059651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines P.cutOffParsing(); 2060651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return true; 20614a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 20624a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 2063c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, 2064651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const char *Msg, 2065651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines tok::TokenKind SkipToTok) { 20664a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.Tok.getLocation(); 2067651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (P.ExpectAndConsume(Kind, DiagID, Msg)) { 2068651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (SkipToTok != tok::unknown) 2069651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines P.SkipUntil(SkipToTok, Parser::StopAtSemi); 2070d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 2071651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2072651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2073d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (getDepth() < MaxDepth) 2074d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return false; 2075d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 2076d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return diagnoseOverflow(); 20774a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 20784a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 2079c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseMissingClose() { 2080d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor assert(!P.Tok.is(Close) && "Should have consumed closing delimiter"); 2081651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2082a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar if (P.Tok.is(tok::annot_module_end)) 2083a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar P.Diag(P.Tok, diag::err_missing_before_module_end) << Close; 2084a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar else 2085a4de17562d13d7a8188108243c4cfbd52f33229aPirama Arumuga Nainar P.Diag(P.Tok, diag::err_expected) << Close; 2086651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines P.Diag(LOpen, diag::note_matching) << Kind; 20875eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith 20885eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith // If we're not already at some kind of closing bracket, skip to our closing 20895eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith // token. 20905eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith if (P.Tok.isNot(tok::r_paren) && P.Tok.isNot(tok::r_brace) && 20915eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith P.Tok.isNot(tok::r_square) && 20928fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev P.SkipUntil(Close, FinalToken, 20938fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev Parser::StopAtSemi | Parser::StopBeforeMatch) && 20945eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith P.Tok.is(Close)) 2095b578aee665aad5ed1a46a26217c730fdfbfc8c2eDavid Blaikie LClose = P.ConsumeAnyToken(); 20964a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 20974a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 20983896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 2099c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorvoid BalancedDelimiterTracker::skipToEnd() { 21008fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev P.SkipUntil(Close, Parser::StopBeforeMatch); 21015eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith consumeClose(); 21023896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor} 2103