Parser.cpp revision 67ac9989e3ec53174b524ab8bc7d08185346cace
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 "ParsePragma.h" 1655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "RAIIObjectsForParser.h" 1755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/ASTConsumer.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 36aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko virtual bool HandleComment(Preprocessor &PP, SourceRange Comment) { 37aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko S.ActOnComment(Comment); 38aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko return false; 39aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko } 40aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko}; 4169b5e952c56f95673064ad1815a240e0fb595865Benjamin Kramer} // end anonymous namespace 42aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 43b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas GregorIdentifierInfo *Parser::getSEHExceptKeyword() { 44b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor // __except is accepted as a (contextual) keyword 454e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Ident__except && (getLangOpts().MicrosoftExt || getLangOpts().Borland)) 46b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = PP.getIdentifierInfo("__except"); 47b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 48b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor return Ident__except; 49b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor} 50b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 5125893e0930c1241c3fdafc6f1b8661443bb19692Argyrios KyrtzidisParser::Parser(Preprocessor &pp, Sema &actions, bool skipFunctionBodies) 52614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 530fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 546a91d385618ea4d28236c496f540a26877c95525Erik Verbruggen InMessageExpression(false), TemplateParameterDepth(0), 5525893e0930c1241c3fdafc6f1b8661443bb19692Argyrios Kyrtzidis ParsingInObjCContainer(false) { 5625893e0930c1241c3fdafc6f1b8661443bb19692Argyrios Kyrtzidis SkipFunctionBodies = pp.isCodeCompletionEnabled() || skipFunctionBodies; 572b970e9d70768802984f2cf1885e73643c17e0c2Chris Lattner Tok.startToken(); 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 5923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 609e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 62849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl = 0; 63fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 64fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 65fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 669595c7e2533c836537dc300e75d059c29feb7094Eli Friedman AlignHandler.reset(new PragmaAlignHandler()); 67cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.AddPragmaHandler(AlignHandler.get()); 68cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar 699595c7e2533c836537dc300e75d059c29feb7094Eli Friedman GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler()); 70aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); 71aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman 729595c7e2533c836537dc300e75d059c29feb7094Eli Friedman OptionsHandler.reset(new PragmaOptionsHandler()); 739b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(OptionsHandler.get()); 749b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 759595c7e2533c836537dc300e75d059c29feb7094Eli Friedman PackHandler.reset(new PragmaPackHandler()); 769b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(PackHandler.get()); 7762c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian 789595c7e2533c836537dc300e75d059c29feb7094Eli Friedman MSStructHandler.reset(new PragmaMSStructHandler()); 7962c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.AddPragmaHandler(MSStructHandler.get()); 809b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 819595c7e2533c836537dc300e75d059c29feb7094Eli Friedman UnusedHandler.reset(new PragmaUnusedHandler()); 829b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(UnusedHandler.get()); 839b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 849595c7e2533c836537dc300e75d059c29feb7094Eli Friedman WeakHandler.reset(new PragmaWeakHandler()); 859b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(WeakHandler.get()); 86321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne 879595c7e2533c836537dc300e75d059c29feb7094Eli Friedman RedefineExtnameHandler.reset(new PragmaRedefineExtnameHandler()); 885f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.AddPragmaHandler(RedefineExtnameHandler.get()); 895f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall 909595c7e2533c836537dc300e75d059c29feb7094Eli Friedman FPContractHandler.reset(new PragmaFPContractHandler()); 91321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.AddPragmaHandler("STDC", FPContractHandler.get()); 92f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 949595c7e2533c836537dc300e75d059c29feb7094Eli Friedman OpenCLExtensionHandler.reset(new PragmaOpenCLExtensionHandler()); 95f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 96f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 97f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); 98f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 99c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev if (getLangOpts().OpenMP) 100c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev OpenMPHandler.reset(new PragmaOpenMPHandler()); 101c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev else 102c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev OpenMPHandler.reset(new PragmaNoOpenMPHandler()); 103c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev PP.AddPragmaHandler(OpenMPHandler.get()); 104aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 1057adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner if (getLangOpts().MicrosoftExt) { 1063190ca922d3743137e15fe0c525c04b177b9983bReid Kleckner MSCommentHandler.reset(new PragmaCommentHandler(actions)); 1077adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner PP.AddPragmaHandler(MSCommentHandler.get()); 108a7ff62f9443efa3b13a28a1e566d4625b15b8553Aaron Ballman MSDetectMismatchHandler.reset(new PragmaDetectMismatchHandler(actions)); 109a7ff62f9443efa3b13a28a1e566d4625b15b8553Aaron Ballman PP.AddPragmaHandler(MSDetectMismatchHandler.get()); 1107adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner } 1117adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner 112056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko CommentSemaHandler.reset(new ActionCommentHandler(actions)); 113056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.addCommentHandler(CommentSemaHandler.get()); 114aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 115f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1183cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 11933e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 1201ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 1211ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 1223cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 1231ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1264b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 1274b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 1284b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 1294b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 13070517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko/// \param DK The kind of diagnostic to emit. 1314b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 1324b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 1334b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 134b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 135b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 1364b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 1374b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 1384b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 1394b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 1404b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 1411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 143849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 144849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1454b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1464b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 147837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 148837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 1494b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith case tok::semi: 1504b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith return Tok.is(tok::colon) || Tok.is(tok::comma); // : or , for ; 151837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 152837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 153837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 154837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// input. If so, it is consumed and false is returned. 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If the input is malformed, this emits the specified diagnostic. Next, if 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// returned. 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Msg, tok::TokenKind SkipToTok) { 163dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 167a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 168837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 169837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 170837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 171837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall Diag(Loc, DiagID) 172837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << Msg 173837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << FixItHint::CreateReplacement(SourceRange(Loc), 174837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall getTokenSimpleSpelling(ExpectedTok)); 175837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall ConsumeAnyToken(); 176837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 177837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 178837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 179837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 180837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1814b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor const char *Spelling = 0; 182b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EndLoc.isValid() && 184b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { 1854b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // Show what code to insert to fix this problem. 1861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(EndLoc, DiagID) 1874b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor << Msg 188849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, Spelling); 1894b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } else 1904b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Tok, DiagID) << Msg; 1914b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (SkipToTok != tok::unknown) 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(SkipToTok); 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1979ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 1989ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { 199fb5825dca4e95fee463fdeaddb8b729294fb4d10Douglas Gregor ConsumeToken(); 2009ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2019ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2029ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2039ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 2049ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 2059ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 2069ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 2079ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 2089ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 2099ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 2109ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2119ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2129ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2139ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 2149ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 2159ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 216eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smithvoid Parser::ConsumeExtraSemi(ExtraSemiKind Kind, unsigned TST) { 2174b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu if (!Tok.is(tok::semi)) return; 2184b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 219eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith bool HadMultipleSemis = false; 2204b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation StartLoc = Tok.getLocation(); 2214b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation EndLoc = Tok.getLocation(); 2224b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2234b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2244b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu while ((Tok.is(tok::semi) && !Tok.isAtStartOfLine())) { 225eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith HadMultipleSemis = true; 2264b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu EndLoc = Tok.getLocation(); 2274b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2284b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2294b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 230eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // C++11 allows extra semicolons at namespace scope, but not in any of the 231eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // other contexts. 232eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind == OutsideFunction && getLangOpts().CPlusPlus) { 23380ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11) 234eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_cxx98_compat_top_level_semi) 235eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 236eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 237eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi_cxx11) 238eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2394b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu return; 2404b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2414b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 242eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind != AfterMemberFunctionDefinition || HadMultipleSemis) 243eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi) 244eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << Kind << DeclSpec::getSpecifierName((DeclSpec::TST)TST) 245eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 246eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 247eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // A single semicolon is valid after a member function definition. 248eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_extra_semi_after_mem_fn_def) 249eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2504b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu} 2514b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 257012cf464254804279efa84e21b4b493dde76c5f1Chris Lattner/// it (unless DontConsume is true). Because we cannot guarantee that the 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 261a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 263a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 264eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikiebool Parser::SkipUntil(ArrayRef<tok::TokenKind> Toks, bool StopAtSemi, 265eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie bool DontConsume, bool StopAtCodeCompletion) { 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 271eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie for (unsigned i = 0, NumToks = Toks.size(); i != NumToks; ++i) { 272000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DontConsume) { 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 281a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 282d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola // Important special case: The caller has given up and just wants us to 283d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola // skip the rest of the file. Do this without recursing, since we can 284d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola // get here precisely because the caller detected too much recursion. 285d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola if (Toks.size() == 1 && Toks[0] == tok::eof && !StopAtSemi && 286d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola !StopAtCodeCompletion) { 287d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola while (Tok.getKind() != tok::eof) 288d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola ConsumeAnyToken(); 289d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola return true; 290d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola } 291d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 296dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 297dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2983437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis if (!StopAtCodeCompletion) 2993437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis ConsumeToken(); 300dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 301dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 3053437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 3103437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3153437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 317a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 338a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 3405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 3415cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 3425cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 3435cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 34655edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (StopAtSemi) 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 3535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 3545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 357a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 3669e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 3679e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 36823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 36923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 3719c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 3725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 3765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 37723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 3785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 37990ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 38090ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 38123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (!getCurScope()->decl_empty()) 38223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 383a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 38423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 38523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 386a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3879e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 3889e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3909e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 3915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3937a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Set the flags for the current scope to ScopeFlags. If ManageFlags is false, 3947a614d8380297fcd2bc23986241905d97222948cRichard Smith/// this object does nothing. 3957a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::ParseScopeFlags(Parser *Self, unsigned ScopeFlags, 3967a614d8380297fcd2bc23986241905d97222948cRichard Smith bool ManageFlags) 3977a614d8380297fcd2bc23986241905d97222948cRichard Smith : CurScope(ManageFlags ? Self->getCurScope() : 0) { 3987a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) { 3997a614d8380297fcd2bc23986241905d97222948cRichard Smith OldFlags = CurScope->getFlags(); 4007a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(ScopeFlags); 4017a614d8380297fcd2bc23986241905d97222948cRichard Smith } 4027a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4047a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Restore the flags for the current scope to what they were before this 4057a614d8380297fcd2bc23986241905d97222948cRichard Smith/// object overrode them. 4067a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::~ParseScopeFlags() { 4077a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) 4087a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(OldFlags); 4097a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 4145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 41823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 41923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 42023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 4229e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 4239e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 424fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 425fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Remove the pragma handlers we installed. 426cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.RemovePragmaHandler(AlignHandler.get()); 427cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(); 428aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.RemovePragmaHandler("GCC", GCCVisibilityHandler.get()); 429aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(); 4309b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(OptionsHandler.get()); 431861800c676004eabed5927f0552620d06c80a40aDaniel Dunbar OptionsHandler.reset(); 4329b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(PackHandler.get()); 4334726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek PackHandler.reset(); 43462c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.RemovePragmaHandler(MSStructHandler.get()); 43562c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(); 4369b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(UnusedHandler.get()); 4374726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek UnusedHandler.reset(); 4389b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(WeakHandler.get()); 4399991479ad5dde617168cc1e4b18425cdbbfd9fa9Eli Friedman WeakHandler.reset(); 4405f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.RemovePragmaHandler(RedefineExtnameHandler.get()); 4415f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall RedefineExtnameHandler.reset(); 442f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 4434e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 444f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 445f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset(); 446f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); 447f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 448c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev PP.RemovePragmaHandler(OpenMPHandler.get()); 449c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev OpenMPHandler.reset(); 450f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 4517adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner if (getLangOpts().MicrosoftExt) { 4527adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner PP.RemovePragmaHandler(MSCommentHandler.get()); 4537adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner MSCommentHandler.reset(); 454a7ff62f9443efa3b13a28a1e566d4625b15b8553Aaron Ballman PP.RemovePragmaHandler(MSDetectMismatchHandler.get()); 455a7ff62f9443efa3b13a28a1e566d4625b15b8553Aaron Ballman MSDetectMismatchHandler.reset(); 4567adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner } 4577adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner 458321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.RemovePragmaHandler("STDC", FPContractHandler.get()); 459321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(); 460aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 461056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.removeCommentHandler(CommentSemaHandler.get()); 462aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 463f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 46413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 46513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 4695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 47131e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 47223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "A scope is already active?"); 47331e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 474c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 475c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 47634870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 477a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 4784e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1) { 479a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 480a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 481a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 482a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 483a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 484a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 48534870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 486662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 487e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Ident_instancetype = 0; 4887eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_final = 0; 4897eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_override = 0; 4901f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 491662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 49282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 4934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().AltiVec) { 49482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 49582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 4963e3d20b2b26a885fcae855bb0b02dbc42d7c5739Bill Schmidt Ident_bool = &PP.getIdentifierTable().get("bool"); 49782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4980a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4990a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_introduced = 0; 5000a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_deprecated = 0; 5010a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_obsoleted = 0; 502b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Ident_unavailable = 0; 50328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 504b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = 0; 505b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 50628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = Ident__exception_info = Ident__abnormal_termination = 0; 50728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = Ident___exception_info = Ident___abnormal_termination = 0; 50828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = Ident_GetExceptionInfo = Ident_AbnormalTermination = 0; 50928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 5104e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if(getLangOpts().Borland) { 51128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 51228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 51328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 51428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 51528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 51628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 51728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 51828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 51928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 52028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 52128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 52228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 52328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 52428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 52528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 52628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 52728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 52828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 52928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 53028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 531c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor 532c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor Actions.Initialize(); 533c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor 534c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor // Prime the lexer look-ahead. 535c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor ConsumeToken(); 5365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 53813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramernamespace { 53913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// \brief RAIIObject to destroy the contents of a SmallVector of 54013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// TemplateIdAnnotation pointers and clear the vector. 54113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer class DestroyTemplateIdAnnotationsRAIIObj { 54213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer SmallVectorImpl<TemplateIdAnnotation *> &Container; 54313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer public: 54413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj(SmallVectorImpl<TemplateIdAnnotation *> 54513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer &Container) 54613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer : Container(Container) {} 54713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 54813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer ~DestroyTemplateIdAnnotationsRAIIObj() { 54913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = 55013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.begin(), E = Container.end(); 55113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer I != E; ++I) 55213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer (*I)->Destroy(); 55313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.clear(); 55413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer } 55513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer }; 55613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer} 55713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 5595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 560682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 56113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 562b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 563e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // Skip over the EOF token, flagging end of previous input for incremental 564e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // processing 565e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (PP.isIncrementalProcessingEnabled() && Tok.is(tok::eof)) 566e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann ConsumeToken(); 567e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 568b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis while (Tok.is(tok::annot_pragma_unused)) 569b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 570b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 571682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Result = DeclGroupPtrTy(); 5729299f3fa85796613cc787a2062c9562d07c8613eChris Lattner if (Tok.is(tok::eof)) { 5738387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 5744e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing) 5758387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.SetLateTemplateParser(LateTemplateParserCallback, this); 576e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (!PP.isIncrementalProcessingEnabled()) 577e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann Actions.ActOnEndOfTranslationUnit(); 578e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann //else don't tell Sema that we ended parsing: more input might come. 5798387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 5809299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 5819299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 582a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5830b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 5844e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 5857f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 586e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 5877f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 59290b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 593c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 594c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 595c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 597c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 604c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 6076b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] empty-declaration 6086b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] attribute-declaration 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 6106b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] empty-declaration: 611a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 612a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 61345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 6147f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 6157f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 6167f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 61713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 61836d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 6197d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 6207d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis if (PP.isCodeCompletionReached()) { 6217d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6227d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 6237d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis } 6247d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 625d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *SingleDecl = 0; 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 627426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola case tok::annot_pragma_vis: 628426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola HandlePragmaVisibility(); 629426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola return DeclGroupPtrTy(); 630aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman case tok::annot_pragma_pack: 631aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman HandlePragmaPack(); 632aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman return DeclGroupPtrTy(); 6339595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_msstruct: 6349595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaMSStruct(); 6359595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6369595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_align: 6379595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaAlign(); 6389595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6399595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weak: 6409595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeak(); 6419595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6429595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weakalias: 6439595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeakAlias(); 6449595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6459595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_redefine_extname: 6469595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaRedefineExtname(); 6479595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6489595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_fp_contract: 6499595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaFPContract(); 6509595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6519595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_opencl_extension: 6529595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaOpenCLExtension(); 6539595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 654c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev case tok::annot_pragma_openmp: 655c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev ParseOpenMPDeclarativeDirective(); 656c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev return DeclGroupPtrTy(); 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 6586b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // Either a C++11 empty-declaration or attribute-declaration. 659684aa73192d92850a926870be62a1787eb5b7ed9Michael Han SingleDecl = Actions.ActOnEmptyDeclaration(getCurScope(), 660684aa73192d92850a926870be62a1787eb5b7ed9Michael Han attrs.getList(), 661684aa73192d92850a926870be62a1787eb5b7ed9Michael Han Tok.getLocation()); 6624b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeExtraSemi(OutsideFunction); 663684aa73192d92850a926870be62a1787eb5b7ed9Michael Han break; 66490b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 665883692ebd421c40b44e2c2665e5f54dade5621bcNico Weber Diag(Tok, diag::err_extraneous_closing_brace); 66690b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 667682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 66890b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 66990b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 670682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 671c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 672c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 673c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 67439146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 6757f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 676c3018153a11afe91849748a93d920040a571b76cChris Lattner } 677dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 6787f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 679bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 68021e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 68121e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 68221e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 683a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 6843f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 6853f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 686dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 687682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 688682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 68921e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 690682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 691dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 69395ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian return ParseObjCAtDirectives(); 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 6964e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().ObjC1) { 697682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 698682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 699682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 700682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 701682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 702682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 703791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 70423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 705849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl? Sema::PCC_ObjCImplementation 706f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 7077d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 7087d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 709f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 7108f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 712adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 713adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 714511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 715c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 71626d6023cb0d343bf8fc8836f97d39709bbd4afa0Chad Rosier // A function definition cannot start with any of these keywords. 71797144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 71897144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 7194e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7207f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 72197144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 722d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 7237306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 7247306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 7257306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7264e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 7277306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7287306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 729d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 7304e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7317f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7327306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7337306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 7347306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7357306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 7364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 7377306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 7387306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7397306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 7407306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 7417306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7424e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7437f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7447306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7457306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7467306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 7477306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7487306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 7497306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7507306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 7517306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7524e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7537f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7547306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 755d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 756d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 757d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 75845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 7594e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 76045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 76145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 76245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 76380ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith Diag(ExternLoc, getLangOpts().CPlusPlus11 ? 7649324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::warn_cxx98_compat_extern_template : 7659324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); 76645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 76745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 7689241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ParseExplicitInstantiation(Declarator::FileContext, 7699241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ExternLoc, TemplateLoc, DeclEnd)); 77045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 77145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // FIXME: Detect C++ linkage specifications here? 772d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 7731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 774f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 775f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 776563a645de82231a55e221fe655b7188bf8369662Francois Pichet ParseMicrosoftIfExistsExternalDeclaration(); 777f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 7786aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 780d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 78220af49a7c5bdb6cca5f4d6586106ef1ce8579311Rafael Espindola return ParseDeclarationOrFunctionDefinition(attrs, DS); 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 785682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 786682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 787682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7901426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7911426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 792e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 793e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 7944e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 795e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 796e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 797e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 798e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 7996c89eafc90f5c51a0bf185a993961170aee530c2Fariborz Jahanian 8001426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 8011426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 8021426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 8031426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 8041426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 8054e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().CPlusPlus && 80639700f81c5b42e6be93be10275602915f872fc86Fariborz Jahanian Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 8071426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 8081426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 8091426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 8101426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 811004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 812075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 8135d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 8145d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 8155d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 816004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 8174e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus && 818075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 819004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 820e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 8214e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 822e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 823e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 824e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 825004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 8265d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 8275d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 8281426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 8291426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 832c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 833c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 8341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 837a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 838a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 839a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 840a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 842697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 843697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 846682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 8472edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclOrFunctionDefInternal(ParsedAttributesWithRange &attrs, 8482edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec &DS, 8492edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt AccessSpecifier AS) { 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 8510efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 852a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 855000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 8562edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 858d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 85954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 860682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 862a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8632edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt DS.takeAttributesFrom(attrs); 8642edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 865246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 866246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 867246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 8684e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC2 && Tok.is(tok::at)) { 869dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 8701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 871246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 872246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 873cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 874682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 875cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 876d8ac05753dc4506224d445ff98399c01da3136e5John McCall 87754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 87854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 8790de2ae28c603322f05e2d9200c7d457c8b928983Fariborz Jahanian const char *PrevSpec = 0; 880fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 881fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) 882fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 8831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 884246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 885bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 886bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 887bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return Actions.ConvertDeclToDeclGroup( 888bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes())); 889dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 890a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 891c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 892c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 893c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 8944e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Tok.is(tok::string_literal) && getLangOpts().CPlusPlus && 895c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 896682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 897d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 898682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 899682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 900c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 901d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 9025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9043acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 9052edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclarationOrFunctionDefinition(ParsedAttributesWithRange &attrs, 9062edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec *DS, 9073acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 9082edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt if (DS) { 9092edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, *DS, AS); 9102edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } else { 9112edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec PDS(*this); 9122edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // Must temporarily exit the objective-c container scope for 9132edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // parsing c constructs and re-enter objc container scope 9142edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // afterwards. 9152edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ObjCDeclContextSwitch ObjCDC(*this); 9162edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 9172edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, PDS, AS); 9182edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } 9193acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 9203acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 925a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 926a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 927a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 928a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 9297ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 93023c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 93123c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 9327ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 933d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 935d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 936c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins const ParsedTemplateInfo &TemplateInfo, 937c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins LateParsedAttrList *LateParsedAttrs) { 93828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley // Poison the SEH identifiers so they are flagged as illegal in function bodies 93928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 940075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 941a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 942a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 943a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 944a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 9454e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ImplicitInt && D.getDeclSpec().isEmpty()) { 946a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 947fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 94831c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 94931c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 950fec54013fcd0eb72642741584ca04c1bc292bef8John McCall PrevSpec, DiagID); 951ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 952a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 953a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 957004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9607ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 9617ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 962758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 9634e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!getLangOpts().CPlusPlus || 964cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && 965cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Tok.isNot(tok::equal)))) { 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 9695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::l_brace, true, true); 970a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 972000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 973d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 975a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 976c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Check to make sure that any normal attributes are allowed to be on 977c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // a definition. Late parsed attributes are checked at the end. 978c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (Tok.isNot(tok::equal)) { 979c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins AttributeList *DtorAttrs = D.getAttributes(); 980c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins while (DtorAttrs) { 981cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (!IsThreadSafetyAttribute(DtorAttrs->getName()->getName()) && 982cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith !DtorAttrs->isCXX11Attribute()) { 983c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins Diag(DtorAttrs->getLoc(), diag::warn_attribute_on_function_definition) 984c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins << DtorAttrs->getName()->getName(); 985c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 986c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins DtorAttrs = DtorAttrs->getNext(); 987c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 988c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 989c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 9908387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 9918387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 9924e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing && 9930963017dcbc32176c79a251c3ab23bc35ac784e5Douglas Gregor Tok.isNot(tok::equal) && 9948387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind == ParsedTemplateInfo::Template) { 9955354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg TemplateParameterLists(*TemplateInfo.TemplateParams); 9968387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9978387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 9988387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 9998387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 100045fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(FDK_Definition); 10018387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 10023fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer TemplateParameterLists); 10038387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 10048387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 10058387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1006ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith CachedTokens Toks; 1007ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith LexTemplateFunctionForLateParsing(Toks); 10088387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1009ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith if (DP) { 10108387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FnD = 0; 10118387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(DP)) 10128387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = FunTmpl->getTemplatedDecl(); 10138387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 10148387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = cast<FunctionDecl>(DP); 10158387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1016ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith Actions.CheckForFunctionRedefinition(FnD); 1017ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith Actions.MarkAsLateParsedTemplate(FnD, DP, Toks); 10188387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10198387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 10208387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10212eb362b50f34296c39d5ec3e5e1bd6a2c9a5877eFariborz Jahanian else if (CurParsedObjCImpl && 10229e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian !TemplateInfo.TemplateParams && 10239e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian (Tok.is(tok::l_brace) || Tok.is(tok::kw_try) || 10249e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian Tok.is(tok::colon)) && 1025be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Actions.CurContext->isTranslationUnit()) { 1026be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1027be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Scope *ParentScope = getCurScope()->getParent(); 1028be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian 1029be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.setFunctionDefinitionKind(FDK_Definition); 1030be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Decl *FuncDecl = Actions.HandleDeclarator(ParentScope, D, 10315354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg()); 1032be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.complete(FuncDecl); 1033be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.getMutableDeclSpec().abort(); 1034be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian if (FuncDecl) { 1035be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian // Consume the tokens and store them for later parsing. 1036be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian StashAwayMethodOrFunctionBodyTokens(FuncDecl); 1037be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian CurParsedObjCImpl->HasCFunction = true; 1038be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian return FuncDecl; 1039be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1040be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1041be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian 1042b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 10438935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1044a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1045b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 1046b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 1047d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 104823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 10495354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer *TemplateInfo.TemplateParams, D) 105023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 1051a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 105254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 105354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 105454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 105554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 105654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 105754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 105854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 1059cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::equal)) { 10604e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Only C++ function definitions have '='"); 1061cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ConsumeToken(); 1062cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1063cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.ActOnFinishFunctionBody(Res, 0, false); 1064cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1065cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt bool Delete = false; 1066cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SourceLocation KWLoc; 1067cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::kw_delete)) { 106880ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith Diag(Tok, getLangOpts().CPlusPlus11 ? 10697fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_deleted_function : 1070d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_deleted_function); 1071cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1072cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1073cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDeleted(Res, KWLoc); 1074cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete = true; 1075cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else if (Tok.is(tok::kw_default)) { 107680ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith Diag(Tok, getLangOpts().CPlusPlus11 ? 10777fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_defaulted_function : 1078d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_defaulted_function); 1079cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1080cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1081cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDefaulted(Res, KWLoc); 1082cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1083cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 1084cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1085cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1086cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::comma)) { 1087cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 1088cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt << Delete; 1089cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SkipUntil(tok::semi); 1090cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1091cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 1092cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete ? "delete" : "default", tok::semi); 1093cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1094cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1095cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt return Res; 1096cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1097cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1098d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 1099c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 1100d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 11017ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 11027ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 1103d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 11047ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 1105d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 1106d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 1107d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 1108c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 11099ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Actions.ActOnFinishFunctionBody(Res, 0); 1110d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 1111d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 1112d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 1113393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 11147ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 1115c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Late attributes are parsed in the same scope as the function body. 1116c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (LateParsedAttrs) 1117c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins ParseLexedAttributeList(*LateParsedAttrs, Res, false, true); 1118c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 1119c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 11255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 1126075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 112804421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 112904421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 11303a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope | 11313a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith Scope::FunctionDeclarationScope | Scope::DeclScope); 113204421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 1136a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 11380b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1140a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1146000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1151a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 11535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 11565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 11575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1160ec64244f5939fa81596fbeddad966cca4b4a4c51Richard Smith if (DS.getThreadStorageClassSpec() != DeclSpec::TSCS_unspecified) { 1161ec64244f5939fa81596fbeddad966cca4b4a4c51Richard Smith Diag(DS.getThreadStorageClassSpecLoc(), 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1165a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 11737f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 1174a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 1176d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 117723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 1178152b4e4652baedfceba1cd8115515629225e713fManuel Klimek 1179a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (i == FTI.NumArgs) { 11891ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 11906898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1193a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 119604421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner if (FTI.ArgInfo[i].Param) { 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 11981ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 11996898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 120104421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner FTI.ArgInfo[i].Param = Param; 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 1210000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 1212a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12137984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.clear(); 12147984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 12167984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.setCommaLoc(ConsumeToken()); 1217a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1221a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12228bb21d32e9ccc9d9c221506dff26acafa8724ccaChris Lattner if (ExpectAndConsumeSemi(diag::err_expected_semi_declaration)) { 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip to end of block or statement 12245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::semi, true); 1225000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) 12265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1229a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 123123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 124160d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 12427f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek switch (Tok.getKind()) { 12437f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::string_literal: 12447f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek break; 124599831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf8_string_literal: 124699831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf16_string_literal: 124799831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf32_string_literal: 12487f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::wide_string_literal: { 12497f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek SourceLocation L = Tok.getLocation(); 12507f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_asm_operand_wide_string_literal) 125199831e4677a7e2e051af636221694d60ba31fcdbRichard Smith << (Tok.getKind() == tok::wide_string_literal) 12527f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek << SourceRange(L, L); 12537f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12547f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek } 12557f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek default: 125697f8461a2c553f68a258612d2322e4281c3f0915Andy Gibbs Diag(Tok, diag::err_expected_string_literal) 125797f8461a2c553f68a258612d2322e4281c3f0915Andy Gibbs << /*Source='in...'*/0 << "'asm'"; 12587f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1260a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 126199831e4677a7e2e051af636221694d60ba31fcdbRichard Smith return ParseStringLiteralExpression(); 12625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 126960d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1270000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1271dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1272a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12737a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1274841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1275841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1276841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1277841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1278841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1279849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 12807a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 12817a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 12827a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 12834a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 12844a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 12851ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 128661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1288a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 128960d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1290a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1291ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Result.isInvalid()) { 1292ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SkipUntil(tok::r_paren, true, true); 1293ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 1294ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Tok.getLocation(); 1295ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl ConsumeAnyToken(); 1296ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } else { 12974a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Close the paren and get the location of the end bracket 12984a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1299ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 13004a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor *EndLoc = T.getCloseLocation(); 1301ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1302a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 13033fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 130625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// \brief Get the TemplateIdAnnotation from the token and put it in the 130725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// cleanup pool so that it gets destroyed when parsing the current top level 130825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// declaration is finished. 130925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios KyrtzidisTemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { 131025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis assert(tok.is(tok::annot_template_id) && "Expected template-id token"); 131125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation * 131225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); 131325a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis return Id; 131425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis} 131525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis 13160576681bac125be07f77f66b02a3dba2c3a24557Richard Smithvoid Parser::AnnotateScopeToken(CXXScopeSpec &SS, bool IsNewAnnotation) { 13170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Push the current token back into the token stream (or revert it if it is 13180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // cached) and use an annotation scope token for current token. 13190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (PP.isBacktrackEnabled()) 13200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.RevertCachedTokens(1); 13210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith else 13220576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.EnterToken(Tok); 13230576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_cxxscope); 13240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 13250576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationRange(SS.getRange()); 13260576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // In case the tokens were cached, have Preprocessor replace them 13280576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // with the annotation token. We don't need to do this if we've 13290576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // just reverted back to a prior state. 13300576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (IsNewAnnotation) 13310576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 13320576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 13330576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13340576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Attempt to classify the name at the current token position. This may 13350576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// form a type, scope or primary expression annotation, or replace the token 13360576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// with a typo-corrected keyword. This is only appropriate when the current 13370576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// name must refer to an entity which has already been declared. 13380576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// 13390576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param IsAddressOfOperand Must be \c true if the name is preceded by an '&' 13400576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// and might possibly have a dependent nested name specifier. 13410576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param CCC Indicates how to perform typo-correction for this name. If NULL, 13420576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// no typo correction will be performed. 13430576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::AnnotatedNameKind 13440576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::TryAnnotateName(bool IsAddressOfOperand, 13450576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CorrectionCandidateCallback *CCC) { 13460576681bac125be07f77f66b02a3dba2c3a24557Richard Smith assert(Tok.is(tok::identifier) || Tok.is(tok::annot_cxxscope)); 13470576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13480576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool EnteringContext = false; 13490576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 13500576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13510576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec SS; 13520576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (getLangOpts().CPlusPlus && 13530576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 13540576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13550576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13560576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Tok.isNot(tok::identifier) || SS.isInvalid()) { 13570576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 13580576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 13590576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13600576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 13610576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 13620576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13630576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IdentifierInfo *Name = Tok.getIdentifierInfo(); 13640576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SourceLocation NameLoc = Tok.getLocation(); 13650576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13660576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // FIXME: Move the tentative declaration logic into ClassifyName so we can 13670576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // typo-correct to tentatively-declared identifiers. 13680576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (isTentativelyDeclared(Name)) { 13690576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Identifier has been tentatively declared, and thus cannot be resolved as 13700576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // an expression. Fall back to annotating it as a type. 13710576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 13720576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 13730576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13740576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return Tok.is(tok::annot_typename) ? ANK_Success : ANK_TentativeDecl; 13750576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 13760576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13770576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Token Next = NextToken(); 13780576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13790576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Look up and classify the identifier. We don't perform any typo-correction 13800576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // after a scope specifier, because in general we can't recover from typos 13810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // there (eg, after correcting 'A::tempalte B<X>::C', we would need to jump 13820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // back into scope specifier parsing). 13830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Sema::NameClassification Classification 13840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith = Actions.ClassifyName(getCurScope(), SS, Name, NameLoc, Next, 13850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IsAddressOfOperand, SS.isEmpty() ? CCC : 0); 13860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith switch (Classification.getKind()) { 13880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Error: 13890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Keyword: 13920576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // The identifier was typo-corrected to a keyword. 13930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setIdentifierInfo(Name); 13940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(Name->getTokenID()); 13950576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.TypoCorrectToken(Tok); 13960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 13970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 13980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We've "annotated" this as a keyword. 13990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Unknown: 14020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // It's not something we know about. Leave it unannotated. 14030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith break; 14040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Type: 14060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_typename); 14070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setTypeAnnotation(Tok, Classification.getType()); 14080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 14090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 14110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 14120576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Expression: 14150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_primary_expr); 14160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setExprAnnotation(Tok, Classification.getExpression()); 14170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 14180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 14200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 14210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14220576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14230576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_TypeTemplate: 14240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Next.isNot(tok::less)) { 14250576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // This may be a type template being used as a template template argument. 14260576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14280576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_TemplateName; 14290576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14300576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Fall through. 1431ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo case Sema::NC_VarTemplate: 14320576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_FunctionTemplate: { 1433ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo // We have a type, variable or function template followed by '<'. 14340576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ConsumeToken(); 14350576681bac125be07f77f66b02a3dba2c3a24557Richard Smith UnqualifiedId Id; 14360576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Id.setIdentifier(Name, NameLoc); 14370576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (AnnotateTemplateIdToken( 14380576681bac125be07f77f66b02a3dba2c3a24557Richard Smith TemplateTy::make(Classification.getTemplateName()), 14390576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Classification.getTemplateNameKind(), SS, SourceLocation(), Id)) 14400576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 14410576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14420576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14430576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14440576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_NestedNameSpecifier: 14450576681bac125be07f77f66b02a3dba2c3a24557Richard Smith llvm_unreachable("already parsed nested name specifier"); 14460576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14470576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14480576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Unable to classify the name, but maybe we can annotate a scope specifier. 14490576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14500576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14510576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 14520576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 14530576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 1454eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1455eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1456eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1457eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1458eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1459eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1460eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1461eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 146244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 146344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 146444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 146544802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 146644802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1467b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 146844802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 146944802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 147044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1471a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 14729ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 14731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 147455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 147555a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1476fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrainbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { 14771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 147842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope) 147923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith || Tok.is(tok::kw_decltype) || Tok.is(tok::annot_template_id)) 148023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith && "Cannot be a type or scope token!"); 14811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1482d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 148367ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // MSVC lets you do stuff like: 148467ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // typename typedef T_::D D; 148567ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // 148667ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // We will consume the typedef token here and put it back after we have 148767ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // parsed the first identifier, transforming it into something more like: 148867ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // typename T_::D typedef D; 148967ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer if (getLangOpts().MicrosoftMode && NextToken().is(tok::kw_typedef)) { 149067ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Token TypedefToken; 149167ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer PP.Lex(TypedefToken); 149267ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer bool Result = TryAnnotateTypeOrScopeToken(EnteringContext, NeedType); 149367ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer PP.EnterToken(Tok); 149467ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Tok = TypedefToken; 149567ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer if (!Result) 149667ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Diag(Tok.getLocation(), diag::warn_expected_qualified_after_typename); 149767ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer return Result; 149867ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer } 149967ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer 1500d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1501d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1502d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1503d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 15041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 15051734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1506d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1507d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 1508efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), 1509efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false, 15104147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 0, /*IsTypename*/true)) 15119ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15129ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 1513b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::identifier) || Tok.is(tok::annot_template_id) || 1514b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet Tok.is(tok::annot_decltype)) { 151523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // Attempt to recover by skipping the invalid 'typename' 1516b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::annot_decltype) || 1517b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet (!TryAnnotateTypeOrScopeToken(EnteringContext, NeedType) && 151867ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Tok.isAnnotation())) { 151923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith unsigned DiagID = diag::err_expected_qualified_after_typename; 152023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // MS compatibility: MSVC permits using known types with typename. 152123756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // e.g. "typedef typename T* pointer_type" 152223756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith if (getLangOpts().MicrosoftExt) 152323756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith DiagID = diag::warn_expected_qualified_after_typename; 152423756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), DiagID); 152523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith return false; 152623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 152723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 152823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith 152923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 15309ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1531d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1532d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1533d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1534d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1535d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 153623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 15371a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1538d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 15391734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 154025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 15411734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (TemplateId->Kind == TNK_Function_template) { 15421734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 15431734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 15449ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1546d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 15475354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), 1548a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 154966581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara 1550a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 155166581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateId->TemplateKWLoc, 1552a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1553a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1554a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 155566581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateArgsPtr, 1556a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 15571734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 15581734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 15591734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 15609ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15611734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15621734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 156339d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 15641734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1565b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 156639d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 15671734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 15681734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 15699ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1570d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1571d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1572ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 15730576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1574ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1575eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 15764e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 1577b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 15789ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1579eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 15800576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, NeedType, 15810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SS, !WasScopeAnnotation); 15820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 15830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Try to annotate a type or scope token, having already parsed an 15850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// optional scope specifier. \p IsNewScope should be \c true unless the scope 15860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// specifier was extracted from an existing tok::annot_cxxscope annotation. 15870576681bac125be07f77f66b02a3dba2c3a24557Richard Smithbool Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(bool EnteringContext, 15880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool NeedType, 15890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec &SS, 15900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool IsNewScope) { 1591eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 1592fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain IdentifierInfo *CorrectedII = 0; 1593608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1594b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1595b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 15961e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 15979e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 15989e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 1599fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/false, 1600fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain /*NonTrivialTypeSourceInfo*/true, 1601fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain NeedType ? &CorrectedII : NULL)) { 1602fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain // A FixIt was applied as a result of typo correction 1603fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain if (CorrectedII) 1604fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain Tok.setIdentifierInfo(CorrectedII); 1605608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1606608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1607b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1608b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1609608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1610608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1611608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 16121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1613608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1614608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1615608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 16169ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 16171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 161839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 16194e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 1620608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1621608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 16221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1623608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1624eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 162639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 162755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 16287532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1629014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1630014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 16311fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 16321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 16337c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 16347c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1635b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1636b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 16377c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1638ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1639ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1640e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 1641e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName)) { 1642c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1643c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1644c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 16459ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1646c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1647ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 164855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1649d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 165039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 165139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 165239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 165339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 16541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1655eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 165639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 165725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1658c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 165939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 166039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 166139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 166239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1663059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 16649ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1665ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo } else if (TemplateId->Kind == TNK_Var_template) 1666ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo return false; 166739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1668d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 16696ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 16709ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 16711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16726ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 16730576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, IsNewScope); 16749ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1675eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1676eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1677eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 167839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 167983a22ecbf52c06b4ee364f3fadcdb0abaf2dabf6Richard Smith/// true if there was an error that could not be recovered from. 16801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 168155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 168255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1683495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 16844e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 16856ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 16863b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 168742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) || 168842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie Tok.is(tok::kw_decltype)) && "Cannot be a type or scope token!"); 1689eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 16904bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1691b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 16929ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1693edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 16949ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1695eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 16960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, true); 16979ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1698eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 16996c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1700fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieubool Parser::isTokenEqualOrEqualTypo() { 1701fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu tok::TokenKind Kind = Tok.getKind(); 1702fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu switch (Kind) { 1703fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu default: 1704d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu return false; 1705fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::ampequal: // &= 1706fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::starequal: // *= 1707fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::plusequal: // += 1708fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::minusequal: // -= 1709fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::exclaimequal: // != 1710fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::slashequal: // /= 1711fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::percentequal: // %= 1712fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lessequal: // <= 1713fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lesslessequal: // <<= 1714fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greaterequal: // >= 1715fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greatergreaterequal: // >>= 1716fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::caretequal: // ^= 1717fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::pipeequal: // |= 1718fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equalequal: // == 1719fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu Diag(Tok, diag::err_invalid_token_after_declarator_suggest_equal) 1720fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << getTokenSimpleSpelling(Kind) 1721fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), "="); 1722fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equal: 1723fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu return true; 1724fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu } 1725a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1726a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 17277d100872341f233c81e1d7b72b40457e62c36862Argyrios KyrtzidisSourceLocation Parser::handleUnexpectedCodeCompletionToken() { 17287d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis assert(Tok.is(tok::code_completion)); 17297d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis PrevTokLocation = Tok.getLocation(); 17307d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 173123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1732dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1733f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 17347d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17357d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1736dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1737dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1738dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1739f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 17407d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17417d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1742dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1743dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1744dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1745f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 17467d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17477d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1748dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1749dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 17506c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 17516c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 17526c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 17536c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 17546c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 17556c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1756f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1757f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1758f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1759f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1760f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1761f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1762f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1763f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1764f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1765f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 17661fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 17671fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1768f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1769f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1770f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1771f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1772f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1773f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1774f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1775f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1776f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1777f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1778f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1779f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 17801fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 178155817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 178255817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 178355817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 178455817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1785f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17863896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregorbool Parser::ParseMicrosoftIfExistsCondition(IfExistsCondition& Result) { 1787f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 1788f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 17893896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.IsIfExists = Tok.is(tok::kw___if_exists); 17903896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.KeywordLoc = ConsumeToken(); 1791f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 17934a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 17943896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Diag(Tok, diag::err_expected_lparen_after) 17953896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor << (Result.IsIfExists? "__if_exists" : "__if_not_exists"); 1796f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1797f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1798f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1799f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 1800efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(Result.SS, ParsedType(), 1801efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false); 1802f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1803f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 18043896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Result.SS.isInvalid()) { 18053896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1806f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1807f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1808f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1809e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // Parse the unqualified-id. 1810e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; // FIXME: parsed, but unused. 1811e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(Result.SS, false, true, true, ParsedType(), 1812e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, Result.Name)) { 18133896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1814f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1815f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1816f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18173896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (T.consumeClose()) 1818f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 18193896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1820f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 182165019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor switch (Actions.CheckMicrosoftIfExistsSymbol(getCurScope(), Result.KeywordLoc, 182265019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor Result.IsIfExists, Result.SS, 18233896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Name)) { 18243896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Exists: 18253896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = Result.IsIfExists ? IEB_Parse : IEB_Skip; 18263896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 1827f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18283896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_DoesNotExist: 18293896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = !Result.IsIfExists ? IEB_Parse : IEB_Skip; 18303896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 18313896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18323896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Dependent: 18333896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = IEB_Dependent; 18343896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 183565019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor 183665019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor case Sema::IER_Error: 183765019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor return true; 18383896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 1839f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1840f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 1841f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1842f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1843563a645de82231a55e221fe655b7188bf8369662Francois Pichetvoid Parser::ParseMicrosoftIfExistsExternalDeclaration() { 18443896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor IfExistsCondition Result; 1845f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 1846f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1847f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18483896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor BalancedDelimiterTracker Braces(*this, tok::l_brace); 18493896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Braces.consumeOpen()) { 1850f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lbrace); 1851f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1852f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1853f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18543896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor switch (Result.Behavior) { 18553896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Parse: 18563896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse declarations below. 18573896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 18583896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18593896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Dependent: 18603896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor llvm_unreachable("Cannot have a dependent external declaration"); 18613896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18623896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Skip: 18633896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.skipToEnd(); 1864f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1865f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1866f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18673896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse the declarations. 18683896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { 1869f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 18704e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 1871f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 1872f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 1873f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 1874f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 18753896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 18763896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.consumeClose(); 1877f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 18786aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 18795948ae1021122164b22f74353bb7fe325a64f616Douglas GregorParser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) { 18801b257afbae854c6817f26b7d61c4fed8ff7aebadDouglas Gregor assert(Tok.isObjCAtKeyword(tok::objc_import) && 188165030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor "Improper start to module import"); 18826aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ImportLoc = ConsumeToken(); 18836aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 1884cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path; 18853d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18863d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Parse the module path. 18873d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor do { 18883d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (!Tok.is(tok::identifier)) { 1889c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor if (Tok.is(tok::code_completion)) { 1890c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor Actions.CodeCompleteModuleImport(ImportLoc, Path); 1891c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor ConsumeCodeCompletionToken(); 1892c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor SkipUntil(tok::semi); 1893c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor return DeclGroupPtrTy(); 1894c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor } 1895c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor 18963d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Diag(Tok, diag::err_module_expected_ident); 18973d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor SkipUntil(tok::semi); 18983d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor return DeclGroupPtrTy(); 18993d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 19003d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 19013d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Record this part of the module path. 19023d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Path.push_back(std::make_pair(Tok.getIdentifierInfo(), Tok.getLocation())); 19033d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 19043d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 19053d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (Tok.is(tok::period)) { 19063d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 19073d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor continue; 19083d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 19093d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 19103d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor break; 19113d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } while (true); 19123b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis 19133b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis if (PP.hadModuleLoaderFatalFailure()) { 19143b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis // With a fatal failure in the module loader, we abort parsing. 19153b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis cutOffParsing(); 19163b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis return DeclGroupPtrTy(); 19173b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis } 19183b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis 19195948ae1021122164b22f74353bb7fe325a64f616Douglas Gregor DeclResult Import = Actions.ActOnModuleImport(AtLoc, ImportLoc, Path); 19206aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor ExpectAndConsumeSemi(diag::err_module_expected_semi); 19216aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (Import.isInvalid()) 19226aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 19236aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 19246aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return Actions.ConvertDeclToDeclGroup(Import.get()); 19256aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor} 19264a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1927c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseOverflow() { 19289e738cc9d4b4655c44dadeb22f3a314daf43b995Richard Smith P.Diag(P.Tok, diag::err_bracket_depth_exceeded) 19299e738cc9d4b4655c44dadeb22f3a314daf43b995Richard Smith << P.getLangOpts().BracketDepth; 19309e738cc9d4b4655c44dadeb22f3a314daf43b995Richard Smith P.Diag(P.Tok, diag::note_bracket_depth); 1931d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola P.SkipUntil(tok::eof, false); 1932d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 19334a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 19344a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1935c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, 19364a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor const char *Msg, 19374a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor tok::TokenKind SkipToToc ) { 19384a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.Tok.getLocation(); 1939d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.ExpectAndConsume(Kind, DiagID, Msg, SkipToToc)) 1940d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 1941d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1942d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (getDepth() < MaxDepth) 1943d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return false; 1944d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1945d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return diagnoseOverflow(); 19464a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 19474a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1948c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseMissingClose() { 1949d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor assert(!P.Tok.is(Close) && "Should have consumed closing delimiter"); 1950d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1951d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor const char *LHSName = "unknown"; 1952b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie diag::kind DID; 1953d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor switch (Close) { 1954b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie default: llvm_unreachable("Unexpected balanced token"); 1955d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; 1956d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; 1957d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; 19584a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 1959d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, DID); 1960d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(LOpen, diag::note_matching) << LHSName; 19616af701f29be43e49a25ab098c79940ae4cbb69c7Alexey Bataev if (P.SkipUntil(Close, FinalToken, /*StopAtSemi*/ true, /*DontConsume*/ true) 19626af701f29be43e49a25ab098c79940ae4cbb69c7Alexey Bataev && P.Tok.is(Close)) 1963b578aee665aad5ed1a46a26217c730fdfbfc8c2eDavid Blaikie LClose = P.ConsumeAnyToken(); 19644a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 19654a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 19663896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1967c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorvoid BalancedDelimiterTracker::skipToEnd() { 19683896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor P.SkipUntil(Close, false); 19693896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor} 1970