Parser.cpp revision 94f29f4bf5d6b49dd1b7fc16cfa1521adc0c71c0
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" 15500d3297d2a21edeac4d46cbcbe21bc2352c2a28Chris Lattner#include "clang/Parse/ParseDiagnostic.h" 1619510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 1719510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/Scope.h" 1819510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 190102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner#include "llvm/Support/raw_ostream.h" 20d167ca0d26e43292b8b9e8d5300d92784ae0e27dChris Lattner#include "RAIIObjectsForParser.h" 21fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar#include "ParsePragma.h" 228387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet#include "clang/AST/DeclTemplate.h" 23f986038beed360c031de8654cfba43a5d3184605Francois Pichet#include "clang/AST/ASTConsumer.h" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// \brief A comment handler that passes comments found by the preprocessor 27aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// to the parser action. 28aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkoclass ActionCommentHandler : public CommentHandler { 29aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko Sema &S; 30aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 31aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkopublic: 32aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko explicit ActionCommentHandler(Sema &S) : S(S) { } 33aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 34aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko virtual bool HandleComment(Preprocessor &PP, SourceRange Comment) { 35aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko S.ActOnComment(Comment); 36aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko return false; 37aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko } 38aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko}; 39aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 40b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas GregorIdentifierInfo *Parser::getSEHExceptKeyword() { 41b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor // __except is accepted as a (contextual) keyword 424e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Ident__except && (getLangOpts().MicrosoftExt || getLangOpts().Borland)) 43b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = PP.getIdentifierInfo("__except"); 44b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 45b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor return Ident__except; 46b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor} 47b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 486a91d385618ea4d28236c496f540a26877c95525Erik VerbruggenParser::Parser(Preprocessor &pp, Sema &actions, bool SkipFunctionBodies) 49614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 500fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 516a91d385618ea4d28236c496f540a26877c95525Erik Verbruggen InMessageExpression(false), TemplateParameterDepth(0), 5294f29f4bf5d6b49dd1b7fc16cfa1521adc0c71c0Jordan Rose ParsingInObjCContainer(false), SkipFunctionBodies(SkipFunctionBodies) { 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 5423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 559e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 57849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl = 0; 58fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 59fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 60fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 61cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(new PragmaAlignHandler(actions)); 62cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.AddPragmaHandler(AlignHandler.get()); 63cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar 64aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler(actions)); 65aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); 66aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman 679b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis OptionsHandler.reset(new PragmaOptionsHandler(actions)); 689b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(OptionsHandler.get()); 699b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 709b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PackHandler.reset(new PragmaPackHandler(actions)); 719b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(PackHandler.get()); 7262c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian 7362c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(new PragmaMSStructHandler(actions)); 7462c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.AddPragmaHandler(MSStructHandler.get()); 759b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 76facde171ae4b8926622a1bffa833732a06f1875bBenjamin Kramer UnusedHandler.reset(new PragmaUnusedHandler(actions)); 779b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(UnusedHandler.get()); 789b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 799b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis WeakHandler.reset(new PragmaWeakHandler(actions)); 809b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(WeakHandler.get()); 81321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne 825f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall RedefineExtnameHandler.reset(new PragmaRedefineExtnameHandler(actions)); 835f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.AddPragmaHandler(RedefineExtnameHandler.get()); 845f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall 85facde171ae4b8926622a1bffa833732a06f1875bBenjamin Kramer FPContractHandler.reset(new PragmaFPContractHandler(actions)); 86321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.AddPragmaHandler("STDC", FPContractHandler.get()); 87f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 884e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 89facde171ae4b8926622a1bffa833732a06f1875bBenjamin Kramer OpenCLExtensionHandler.reset(new PragmaOpenCLExtensionHandler(actions)); 90f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 91f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 92f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); 93f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 94aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 95056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko CommentSemaHandler.reset(new ActionCommentHandler(actions)); 96056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.addCommentHandler(CommentSemaHandler.get()); 97aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 98f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1010102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// If a crash happens while the parser is active, print out a line indicating 1020102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// what the current token is. 1035f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid PrettyStackTraceParserEntry::print(raw_ostream &OS) const { 1040102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &Tok = P.getCurToken(); 105ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.is(tok::eof)) { 1060102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner OS << "<eof> parser at end of file\n"; 1070102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner return; 1080102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner } 1091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 110ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.getLocation().isInvalid()) { 111ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner OS << "<unknown> parser at unknown location\n"; 112ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner return; 113ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner } 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1150102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Preprocessor &PP = P.getPreprocessor(); 1160102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Tok.getLocation().print(OS, PP.getSourceManager()); 1179fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar if (Tok.isAnnotation()) 1189fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": at annotation token \n"; 1199fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar else 1209fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": current parser token '" << PP.getSpelling(Tok) << "'\n"; 121f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor} 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1230102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 1243cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 12533e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 1261ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 1271ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 1283cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 1291ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1324b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 1334b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 1344b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 1354b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 1364b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The kind of diagnostic to emit. 1374b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 1384b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 1394b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 140b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 141b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 1424b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 1434b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 1444b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 1454b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 1464b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 1471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 149849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 150849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1514b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1524b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 153837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 154837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 155837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall case tok::semi: return Tok.is(tok::colon); // : for ; 156837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 157837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 158837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 159837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// input. If so, it is consumed and false is returned. 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If the input is malformed, this emits the specified diagnostic. Next, if 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// returned. 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Msg, tok::TokenKind SkipToTok) { 168dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 172a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 173837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 174837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 175837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 176837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall Diag(Loc, DiagID) 177837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << Msg 178837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << FixItHint::CreateReplacement(SourceRange(Loc), 179837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall getTokenSimpleSpelling(ExpectedTok)); 180837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall ConsumeAnyToken(); 181837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 182837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 183837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 184837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 185837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1864b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor const char *Spelling = 0; 187b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EndLoc.isValid() && 189b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { 1904b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // Show what code to insert to fix this problem. 1911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(EndLoc, DiagID) 1924b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor << Msg 193849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, Spelling); 1944b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } else 1954b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Tok, DiagID) << Msg; 1964b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (SkipToTok != tok::unknown) 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(SkipToTok); 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2029ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 2039ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { 204fb5825dca4e95fee463fdeaddb8b729294fb4d10Douglas Gregor ConsumeToken(); 2059ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2069ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2079ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2089ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 2099ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 2109ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 2119ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 2129ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 2139ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 2149ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 2159ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2169ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2179ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2189ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 2199ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 2209ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2214b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieuvoid Parser::ConsumeExtraSemi(ExtraSemiKind Kind, const char* DiagMsg) { 2224b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu if (!Tok.is(tok::semi)) return; 2234b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2244b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu // AfterDefinition should only warn when placed on the same line as the 2254b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu // definition. Otherwise, defer to another semi warning. 2264b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu if (Kind == AfterDefinition && Tok.isAtStartOfLine()) return; 2274b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2284b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation StartLoc = Tok.getLocation(); 2294b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation EndLoc = Tok.getLocation(); 2304b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2314b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2324b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu while ((Tok.is(tok::semi) && !Tok.isAtStartOfLine())) { 2334b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu EndLoc = Tok.getLocation(); 2344b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2354b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2364b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2374b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu if (Kind == OutsideFunction && getLangOpts().CPlusPlus0x) { 2384b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu Diag(StartLoc, diag::warn_cxx98_compat_top_level_semi) 2394b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2404b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu return; 2414b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2424b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2434b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu Diag(StartLoc, diag::ext_extra_semi) 2444b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu << Kind << DiagMsg << FixItHint::CreateRemoval(SourceRange(StartLoc, 2454b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu EndLoc)); 2464b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu} 2474b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 253012cf464254804279efa84e21b4b493dde76c5f1Chris Lattner/// it (unless DontConsume is true). Because we cannot guarantee that the 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 257a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 259a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 260eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikiebool Parser::SkipUntil(ArrayRef<tok::TokenKind> Toks, bool StopAtSemi, 261eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie bool DontConsume, bool StopAtCodeCompletion) { 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 267eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie for (unsigned i = 0, NumToks = Toks.size(); i != NumToks; ++i) { 268000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DontConsume) { 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 277a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 282dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 283dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2843437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis if (!StopAtCodeCompletion) 2853437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis ConsumeToken(); 286dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 287dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2913437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2963437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3013437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 303a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 324a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 3275cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 3285cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 3295cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 33255edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 3335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (StopAtSemi) 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 3405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 343a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 3529e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 3539e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 35423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 35523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 3579c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 36323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 36590ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 36690ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 36723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (!getCurScope()->decl_empty()) 36823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 369a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 37023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 37123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 372a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3739e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 3749e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3769e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 3775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3797a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Set the flags for the current scope to ScopeFlags. If ManageFlags is false, 3807a614d8380297fcd2bc23986241905d97222948cRichard Smith/// this object does nothing. 3817a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::ParseScopeFlags(Parser *Self, unsigned ScopeFlags, 3827a614d8380297fcd2bc23986241905d97222948cRichard Smith bool ManageFlags) 3837a614d8380297fcd2bc23986241905d97222948cRichard Smith : CurScope(ManageFlags ? Self->getCurScope() : 0) { 3847a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) { 3857a614d8380297fcd2bc23986241905d97222948cRichard Smith OldFlags = CurScope->getFlags(); 3867a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(ScopeFlags); 3877a614d8380297fcd2bc23986241905d97222948cRichard Smith } 3887a614d8380297fcd2bc23986241905d97222948cRichard Smith} 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3907a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Restore the flags for the current scope to what they were before this 3917a614d8380297fcd2bc23986241905d97222948cRichard Smith/// object overrode them. 3927a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::~ParseScopeFlags() { 3937a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) 3947a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(OldFlags); 3957a614d8380297fcd2bc23986241905d97222948cRichard Smith} 3965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 40423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 40523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 40623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor 4075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 4089e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 4099e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 410fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 4118387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Free LateParsedTemplatedFunction nodes. 4128387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet for (LateParsedTemplateMapT::iterator it = LateParsedTemplateMap.begin(); 4138387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet it != LateParsedTemplateMap.end(); ++it) 4148387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet delete it->second; 4158387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 416fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Remove the pragma handlers we installed. 417cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.RemovePragmaHandler(AlignHandler.get()); 418cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(); 419aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.RemovePragmaHandler("GCC", GCCVisibilityHandler.get()); 420aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(); 4219b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(OptionsHandler.get()); 422861800c676004eabed5927f0552620d06c80a40aDaniel Dunbar OptionsHandler.reset(); 4239b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(PackHandler.get()); 4244726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek PackHandler.reset(); 42562c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.RemovePragmaHandler(MSStructHandler.get()); 42662c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(); 4279b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(UnusedHandler.get()); 4284726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek UnusedHandler.reset(); 4299b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(WeakHandler.get()); 4309991479ad5dde617168cc1e4b18425cdbbfd9fa9Eli Friedman WeakHandler.reset(); 4315f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.RemovePragmaHandler(RedefineExtnameHandler.get()); 4325f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall RedefineExtnameHandler.reset(); 433f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 4344e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 435f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 436f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset(); 437f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); 438f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 439f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 440321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.RemovePragmaHandler("STDC", FPContractHandler.get()); 441321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(); 442aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 443056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.removeCommentHandler(CommentSemaHandler.get()); 444aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 445f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 44613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 44713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); 4485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 45331e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 45423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "A scope is already active?"); 45531e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 456c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 457c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 458c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor // Prime the lexer look-ahead. 459c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor ConsumeToken(); 460a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 46134870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 462a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 4634e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1) { 464a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 465a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 466a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 467a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 468a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 469a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 47034870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 471662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 472e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Ident_instancetype = 0; 4737eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_final = 0; 4747eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_override = 0; 4751f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 476662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 47782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 4784e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().AltiVec) { 47982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 48082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 48182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4820a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4830a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_introduced = 0; 4840a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_deprecated = 0; 4850a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_obsoleted = 0; 486b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Ident_unavailable = 0; 48728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 488b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = 0; 489b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 49028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = Ident__exception_info = Ident__abnormal_termination = 0; 49128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = Ident___exception_info = Ident___abnormal_termination = 0; 49228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = Ident_GetExceptionInfo = Ident_AbnormalTermination = 0; 49328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 4944e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if(getLangOpts().Borland) { 49528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 49628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 49728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 49828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 49928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 50028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 50128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 50228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 50328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 50428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 50528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 50628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 50728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 50828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 50928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 51028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 51128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 51228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 51328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 51428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 5155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 51713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramernamespace { 51813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// \brief RAIIObject to destroy the contents of a SmallVector of 51913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// TemplateIdAnnotation pointers and clear the vector. 52013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer class DestroyTemplateIdAnnotationsRAIIObj { 52113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer SmallVectorImpl<TemplateIdAnnotation *> &Container; 52213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer public: 52313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj(SmallVectorImpl<TemplateIdAnnotation *> 52413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer &Container) 52513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer : Container(Container) {} 52613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 52713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer ~DestroyTemplateIdAnnotationsRAIIObj() { 52813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = 52913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.begin(), E = Container.end(); 53013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer I != E; ++I) 53113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer (*I)->Destroy(); 53213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.clear(); 53313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer } 53413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer }; 53513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer} 53613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 5385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 539682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 54013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 541b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 542e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // Skip over the EOF token, flagging end of previous input for incremental 543e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // processing 544e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (PP.isIncrementalProcessingEnabled() && Tok.is(tok::eof)) 545e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann ConsumeToken(); 546e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 547b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis while (Tok.is(tok::annot_pragma_unused)) 548b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 549b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 550682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Result = DeclGroupPtrTy(); 5519299f3fa85796613cc787a2062c9562d07c8613eChris Lattner if (Tok.is(tok::eof)) { 5528387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 5534e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing) 5548387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.SetLateTemplateParser(LateTemplateParserCallback, this); 555e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (!PP.isIncrementalProcessingEnabled()) 556e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann Actions.ActOnEndOfTranslationUnit(); 557e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann //else don't tell Sema that we ended parsing: more input might come. 5588387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 5599299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 5609299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 561a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5620b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 5637f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseCXX0XAttributes(attrs); 5647f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 565e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 5667f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 5675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 5685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTranslationUnit: 5715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// translation-unit: [C99 6.9] 572a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// external-declaration 573a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// translation-unit external-declaration 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseTranslationUnit() { 5758935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Initialize(); 576a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 577682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy Res; 57889307ffaf8acf4d6fdffd72b607ca4fbcfdffc9dSteve Naroff while (!ParseTopLevelDecl(Res)) 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /*parse them all*/; 5801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 58106f548596beef4c0a227a45cba996497f99566c0Chris Lattner ExitScope(); 58223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "Scope imbalance!"); 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 58690b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 587c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 588c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 589c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 590a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 592c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 599c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 603a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration: 604a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 605a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 60645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 6077f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 6087f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 6097f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 61013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 61136d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 6127d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 6137d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis if (PP.isCodeCompletionReached()) { 6147d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6157d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 6167d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis } 6177d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 618d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *SingleDecl = 0; 6195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 620426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola case tok::annot_pragma_vis: 621426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola HandlePragmaVisibility(); 622426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola return DeclGroupPtrTy(); 623aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman case tok::annot_pragma_pack: 624aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman HandlePragmaPack(); 625aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman return DeclGroupPtrTy(); 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 6274b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeExtraSemi(OutsideFunction); 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Invoke action for top-level semicolon. 629682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 63090b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 631883692ebd421c40b44e2c2665e5f54dade5621bcNico Weber Diag(Tok, diag::err_extraneous_closing_brace); 63290b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 633682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 63490b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 63590b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 636682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 637c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 638c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 639c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 64039146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 6417f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 642c3018153a11afe91849748a93d920040a571b76cChris Lattner } 643dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 6447f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 645bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 64621e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 64721e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 64821e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 649a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 6503f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 6513f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 652dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 653682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 654682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 65521e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 656682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 657dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 65995ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian return ParseObjCAtDirectives(); 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 6624e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().ObjC1) { 663682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 664682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 665682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 666682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 667682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 668682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 669791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 67023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 671849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl? Sema::PCC_ObjCImplementation 672f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 6737d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6747d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 675f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 6768f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 678adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 679adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 680511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 681c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 68226d6023cb0d343bf8fc8836f97d39709bbd4afa0Chad Rosier // A function definition cannot start with any of these keywords. 68397144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 68497144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 685c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 6867f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 68797144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 688d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 6897306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 6907306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 6917306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 6924e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 6937306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 6947306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 695d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 696c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 6977f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6987306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 6997306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 7007306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7017306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 7024e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 7037306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 7047306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7057306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 7067306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 7077306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7087306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 7097f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7107306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7117306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7127306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 7137306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7147306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 7157306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7167306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 7177306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7187306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 7197f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7207306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 721d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 722d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 723d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 72445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 7254e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 72645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 72745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 72845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 7294e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(ExternLoc, getLangOpts().CPlusPlus0x ? 7309324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::warn_cxx98_compat_extern_template : 7319324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); 73245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 73345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 7349241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ParseExplicitInstantiation(Declarator::FileContext, 7359241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ExternLoc, TemplateLoc, DeclEnd)); 73645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 73745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // FIXME: Detect C++ linkage specifications here? 738d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 7391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 740f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 741f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 742563a645de82231a55e221fe655b7188bf8369662Francois Pichet ParseMicrosoftIfExistsExternalDeclaration(); 743f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 7446aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 746d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 7487f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (DS) { 7492edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclarationOrFunctionDefinition(attrs, DS); 7507f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } else { 7517f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(attrs); 7527f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 755682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 756682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 757682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7601426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7611426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 762e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 763e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 7644e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 765e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 766e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 767e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 768e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 7696c89eafc90f5c51a0bf185a993961170aee530c2Fariborz Jahanian 7701426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 7711426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 7721426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 7731426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 7741426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 7754e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().CPlusPlus && 77639700f81c5b42e6be93be10275602915f872fc86Fariborz Jahanian Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 7771426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7781426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 7791426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7801426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 781004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 782075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 7835d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 7845d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 7855d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 786004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 7874e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus && 788075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 789004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 790e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 7914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 792e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 793e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 794e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 795004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 7965d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 7975d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 7981426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7991426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 8008a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian/// \brief Determine whether the current token, if it occurs after a 8018a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian/// a function declarator, indicates the start of a function definition 8028a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian/// inside an objective-C class implementation and thus can be delay parsed. 8038a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanianbool Parser::isStartOfDelayParsedFunctionDefinition( 8048a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian const ParsingDeclarator &Declarator) { 8058a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian if (!CurParsedObjCImpl || 8068a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian !Declarator.isFunctionDeclarator()) 8078a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian return false; 8088a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian if (Tok.is(tok::l_brace)) // int X() {} 8098a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian return true; 8108a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian 8118a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian // Handle K&R C argument lists: int X(f) int f; {} 8128a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian if (!getLangOpts().CPlusPlus && 8138a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian Declarator.getFunctionTypeInfo().isKNRPrototype()) 8148a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian return isDeclarationSpecifier(); 8158a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian 8168a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian return getLangOpts().CPlusPlus && 8178a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian (Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 8188a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian Tok.is(tok::kw_try)); // X() try { ... } 8198a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian} 8208a10d9fcb5a207a519be95ff9281c3536f79cf03Fariborz Jahanian 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 8225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 823c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 824c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 8251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 828a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 829a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 830a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 831a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 833697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 834697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 8365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 837682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 8382edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclOrFunctionDefInternal(ParsedAttributesWithRange &attrs, 8392edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec &DS, 8402edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt AccessSpecifier AS) { 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 8420efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 843a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 846000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 8472edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 849d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 85054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 851682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 853a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8542edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt DS.takeAttributesFrom(attrs); 8552edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 856246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 857246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 858246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 8594e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC2 && Tok.is(tok::at)) { 860dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 8611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 862246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 863246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 864cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 865682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 866cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 867d8ac05753dc4506224d445ff98399c01da3136e5John McCall 86854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 86954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 8700de2ae28c603322f05e2d9200c7d457c8b928983Fariborz Jahanian const char *PrevSpec = 0; 871fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 872fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) 873fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 8741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 875246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 876bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 877bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 878bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return Actions.ConvertDeclToDeclGroup( 879bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes())); 880dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 881a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 882c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 883c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 884c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 8854e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Tok.is(tok::string_literal) && getLangOpts().CPlusPlus && 886c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 887682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 888d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 889682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 890682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 891c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 892d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8953acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 8962edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclarationOrFunctionDefinition(ParsedAttributesWithRange &attrs, 8972edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec *DS, 8983acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 8992edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt if (DS) { 9002edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, *DS, AS); 9012edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } else { 9022edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec PDS(*this); 9032edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // Must temporarily exit the objective-c container scope for 9042edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // parsing c constructs and re-enter objc container scope 9052edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // afterwards. 9062edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ObjCDeclContextSwitch ObjCDC(*this); 9072edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 9082edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, PDS, AS); 9092edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } 9103acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 9113acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 916a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 917a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 918a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 919a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 9207ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 92123c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 92223c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 9237ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 924d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 926d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 927c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins const ParsedTemplateInfo &TemplateInfo, 928c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins LateParsedAttrList *LateParsedAttrs) { 92928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley // Poison the SEH identifiers so they are flagged as illegal in function bodies 93028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 931075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 932a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 933a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 934a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 935a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 9364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ImplicitInt && D.getDeclSpec().isEmpty()) { 937a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 938fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 93931c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 94031c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 941fec54013fcd0eb72642741584ca04c1bc292bef8John McCall PrevSpec, DiagID); 942ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 943a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 944a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 948004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9517ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 9527ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 953758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 9544e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!getLangOpts().CPlusPlus || 955cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && 956cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Tok.isNot(tok::equal)))) { 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::l_brace, true, true); 961a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 963000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 964d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 966a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 967c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Check to make sure that any normal attributes are allowed to be on 968c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // a definition. Late parsed attributes are checked at the end. 969c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (Tok.isNot(tok::equal)) { 970c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins AttributeList *DtorAttrs = D.getAttributes(); 971c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins while (DtorAttrs) { 972c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (!IsThreadSafetyAttribute(DtorAttrs->getName()->getName())) { 973c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins Diag(DtorAttrs->getLoc(), diag::warn_attribute_on_function_definition) 974c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins << DtorAttrs->getName()->getName(); 975c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 976c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins DtorAttrs = DtorAttrs->getNext(); 977c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 978c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 979c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 9808387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 9818387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 9824e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing && 9830963017dcbc32176c79a251c3ab23bc35ac784e5Douglas Gregor Tok.isNot(tok::equal) && 9848387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind == ParsedTemplateInfo::Template) { 9858387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet MultiTemplateParamsArg TemplateParameterLists(Actions, 9868387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.TemplateParams->data(), 9878387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.TemplateParams->size()); 9888387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9898387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 9908387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 9918387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 99245fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(FDK_Definition); 9938387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 9942c712f50cd56eaf3662989b556e9c6b1e8fcd11aKaelyn Uhrain move(TemplateParameterLists)); 9958387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 9968387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 9978387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9988387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (DP) { 999e1fca502e7f1349e9b4520a4ca9a02413bcf2b14Francois Pichet LateParsedTemplatedFunction *LPT = new LateParsedTemplatedFunction(DP); 10008387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 10018387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FnD = 0; 10028387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(DP)) 10038387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = FunTmpl->getTemplatedDecl(); 10048387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 10058387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = cast<FunctionDecl>(DP); 1006d4a0caf78e7c18e7aca65fbfd799a6c024ff51fbFrancois Pichet Actions.CheckForFunctionRedefinition(FnD); 10078387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 10088387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplateMap[FnD] = LPT; 10098387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.MarkAsLateParsedTemplate(FnD); 10108387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(LPT->Toks); 10118387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } else { 10128387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet CachedTokens Toks; 10138387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(Toks); 10148387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10158387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 10168387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10178387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 1018b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 10198935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1020a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1021b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 1022b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 1023d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 102423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 1025f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall MultiTemplateParamsArg(Actions, 102652591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->data(), 102752591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->size()), 102852591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor D) 102923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 1030a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 103154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 103254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 103354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 103454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 103554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 103654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 103754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 1038cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::equal)) { 10394e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Only C++ function definitions have '='"); 1040cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ConsumeToken(); 1041cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1042cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.ActOnFinishFunctionBody(Res, 0, false); 1043cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1044cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt bool Delete = false; 1045cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SourceLocation KWLoc; 1046cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::kw_delete)) { 10474e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 10487fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_deleted_function : 1049d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_deleted_function); 1050cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1051cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1052cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDeleted(Res, KWLoc); 1053cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete = true; 1054cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else if (Tok.is(tok::kw_default)) { 10554e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 10567fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_defaulted_function : 1057d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_defaulted_function); 1058cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1059cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1060cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDefaulted(Res, KWLoc); 1061cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1062cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 1063cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1064cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1065cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::comma)) { 1066cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 1067cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt << Delete; 1068cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SkipUntil(tok::semi); 1069cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1070cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 1071cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete ? "delete" : "default", tok::semi); 1072cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1073cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1074cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt return Res; 1075cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1076cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1077d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 1078c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 1079d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 10807ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 10817ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 1082d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 10837ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 1084d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 1085d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 1086d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 1087c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 10889ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Actions.ActOnFinishFunctionBody(Res, 0); 1089d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 1090d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 1091d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 1092393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 10937ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 1094c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Late attributes are parsed in the same scope as the function body. 1095c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (LateParsedAttrs) 1096c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins ParseLexedAttributeList(*LateParsedAttrs, Res, false, true); 1097c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 1098c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 11035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 11045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 1105075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 110704421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 110804421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 11093218c4bb3b5d7250f12420de6db7ef3e3f805a75Douglas Gregor ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope|Scope::DeclScope); 111004421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 1114a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 11160b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1118a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1124000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 11255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1129a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.isThreadSpecified()) { 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getThreadSpecLoc(), 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1143a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 11517f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 1152a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 1154d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 115523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 11562bd42fadafddc8acf744b57a970bdc96a077c617Steve Naroff 1157a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (i == FTI.NumArgs) { 11671ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 11686898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1171a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 117404421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner if (FTI.ArgInfo[i].Param) { 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 11761ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 11776898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 117904421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner FTI.ArgInfo[i].Param = Param; 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 1188000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 1190a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11917984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.clear(); 11927984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 11947984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.setCommaLoc(ConsumeToken()); 1195a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1199a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12008bb21d32e9ccc9d9c221506dff26acafa8724ccaChris Lattner if (ExpectAndConsumeSemi(diag::err_expected_semi_declaration)) { 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip to end of block or statement 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::semi, true); 1203000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1207a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 120923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 121960d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 12207f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek switch (Tok.getKind()) { 12217f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::string_literal: 12227f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek break; 122399831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf8_string_literal: 122499831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf16_string_literal: 122599831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf32_string_literal: 12267f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::wide_string_literal: { 12277f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek SourceLocation L = Tok.getLocation(); 12287f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_asm_operand_wide_string_literal) 122999831e4677a7e2e051af636221694d60ba31fcdbRichard Smith << (Tok.getKind() == tok::wide_string_literal) 12307f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek << SourceRange(L, L); 12317f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12327f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek } 12337f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek default: 12347f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_expected_string_literal); 12357f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1237a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 123899831e4677a7e2e051af636221694d60ba31fcdbRichard Smith return ParseStringLiteralExpression(); 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 124660d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1247000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1248dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1249a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12507a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1251841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1252841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1253841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1254841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1255841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1256849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 12577a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 12587a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 12597a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 12604a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 12614a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 12621ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 126361364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 12645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1265a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 126660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1267a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1268ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Result.isInvalid()) { 1269ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SkipUntil(tok::r_paren, true, true); 1270ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 1271ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Tok.getLocation(); 1272ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl ConsumeAnyToken(); 1273ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } else { 12744a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Close the paren and get the location of the end bracket 12754a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1276ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 12774a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor *EndLoc = T.getCloseLocation(); 1278ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1279a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1280effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl return move(Result); 12815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 128325a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// \brief Get the TemplateIdAnnotation from the token and put it in the 128425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// cleanup pool so that it gets destroyed when parsing the current top level 128525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// declaration is finished. 128625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios KyrtzidisTemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { 128725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis assert(tok.is(tok::annot_template_id) && "Expected template-id token"); 128825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation * 128925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); 129025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis return Id; 129125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis} 129225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis 1293eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1294eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1295eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1296eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1297eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1298eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1299eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1300eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 130144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 130244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 130344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 130444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 130544802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1306b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 130744802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 130844802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 130944802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1310a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 13119ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 13121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 131355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 131455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1315fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrainbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { 13161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 131742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope) 131823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith || Tok.is(tok::kw_decltype) || Tok.is(tok::annot_template_id)) 131923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith && "Cannot be a type or scope token!"); 13201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1321d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 1322d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1323d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1324d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1325d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 13261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 13271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1328d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1329d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 1330efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), 1331efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false, 13324147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 0, /*IsTypename*/true)) 13339ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 13349ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 133523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith if (Tok.is(tok::identifier) || Tok.is(tok::annot_template_id)) { 133623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // Attempt to recover by skipping the invalid 'typename' 133723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith if (!TryAnnotateTypeOrScopeToken(EnteringContext, NeedType) && 133823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Tok.isAnnotation()) { 133923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith unsigned DiagID = diag::err_expected_qualified_after_typename; 134023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // MS compatibility: MSVC permits using known types with typename. 134123756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // e.g. "typedef typename T* pointer_type" 134223756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith if (getLangOpts().MicrosoftExt) 134323756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith DiagID = diag::warn_expected_qualified_after_typename; 134423756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), DiagID); 134523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith return false; 134623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 134723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 134823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith 134923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 13509ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1351d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1352d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1353d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1354d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1355d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 135623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 13571a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1358d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 13591734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 136025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 13611734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (TemplateId->Kind == TNK_Function_template) { 13621734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 13631734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 13649ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 13651734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1366d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1367a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, 1368a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->getTemplateArgs(), 1369a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 137066581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara 1371a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 137266581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateId->TemplateKWLoc, 1373a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1374a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1375a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 137666581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateArgsPtr, 1377a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 13781734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 13791734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 13801734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 13819ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 13821734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 13831734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 138439d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 13851734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1386b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 138739d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 13881734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 13891734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 13909ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1391d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1392d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1393ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 1394ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall bool wasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1395ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1396eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 13974e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 1398b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 13999ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1400eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1401eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 1402fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain IdentifierInfo *CorrectedII = 0; 1403608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1404b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1405b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 14061e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 14079e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 14089e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 1409fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/false, 1410fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain /*NonTrivialTypeSourceInfo*/true, 1411fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain NeedType ? &CorrectedII : NULL)) { 1412fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain // A FixIt was applied as a result of typo correction 1413fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain if (CorrectedII) 1414fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain Tok.setIdentifierInfo(CorrectedII); 1415608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1416608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1417b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1418b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1419608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1420608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1421608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 14221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1423608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1424608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1425608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 14269ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 14271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 142839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 14294e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 1430608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1431608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 14321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1433608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1434eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 14351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 143639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 143755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 14387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1439014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1440014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 14411fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 14421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 14437c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 14447c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1445b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1446b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 14477c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1448ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1449ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1450e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 1451e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName)) { 1452c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1453c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1454c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 14559ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1456c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1457ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 145855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1459d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 146039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 146139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 146239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 146339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 14641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1465eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 146639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 146725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1468c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 146939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 147039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 147139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 147239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1473059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 14749ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 147539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 147639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1477d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 14786ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 14799ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 14801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14816ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 14826ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 14836ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 14846ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 14856ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 14866ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 14876ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 14886ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1489c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 14906ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 14916ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 1492ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // In case the tokens were cached, have Preprocessor replace them 1493ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // with the annotation token. We don't need to do this if we've 1494ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // just reverted back to the state we were in before being called. 1495ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall if (!wasScopeAnnotation) 1496ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall PP.AnnotateCachedTokens(Tok); 14979ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1498eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1499eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1500eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 150139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 150283a22ecbf52c06b4ee364f3fadcdb0abaf2dabf6Richard Smith/// true if there was an error that could not be recovered from. 15031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 150455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 150555a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1506495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 15074e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 15086ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 15093b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 151042d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) || 151142d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie Tok.is(tok::kw_decltype)) && "Cannot be a type or scope token!"); 1512eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 15134bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1514b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 15159ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1516edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 15179ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1518eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 15196ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 15206ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 15216ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 15226ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 15236ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 15246ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 15256ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1526c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 15276ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 15286ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 15296ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // In case the tokens were cached, have Preprocessor replace them with the 15306ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // annotation token. 15316ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.AnnotateCachedTokens(Tok); 15329ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1533eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 15346c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1535fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieubool Parser::isTokenEqualOrEqualTypo() { 1536fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu tok::TokenKind Kind = Tok.getKind(); 1537fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu switch (Kind) { 1538fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu default: 1539d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu return false; 1540fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::ampequal: // &= 1541fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::starequal: // *= 1542fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::plusequal: // += 1543fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::minusequal: // -= 1544fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::exclaimequal: // != 1545fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::slashequal: // /= 1546fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::percentequal: // %= 1547fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lessequal: // <= 1548fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lesslessequal: // <<= 1549fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greaterequal: // >= 1550fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greatergreaterequal: // >>= 1551fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::caretequal: // ^= 1552fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::pipeequal: // |= 1553fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equalequal: // == 1554fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu Diag(Tok, diag::err_invalid_token_after_declarator_suggest_equal) 1555fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << getTokenSimpleSpelling(Kind) 1556fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), "="); 1557fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equal: 1558fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu return true; 1559fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu } 1560a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1561a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 15627d100872341f233c81e1d7b72b40457e62c36862Argyrios KyrtzidisSourceLocation Parser::handleUnexpectedCodeCompletionToken() { 15637d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis assert(Tok.is(tok::code_completion)); 15647d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis PrevTokLocation = Tok.getLocation(); 15657d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 156623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1567dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1568f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 15697d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 15707d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1571dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1572dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1573dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1574f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 15757d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 15767d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1577dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1578dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1579dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1580f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 15817d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 15827d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1583dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1584dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 15856c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 15866c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 15876c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 15886c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 15896c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 15906c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1591f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1592f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1593f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1594f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1595f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1596f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1597f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1598f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1599f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1600f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 16011fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 16021fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1603f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1604f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1605f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1606f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1607f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1608f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1609f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1610f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1611f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1612f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1613f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1614f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 16151fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 161655817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 161755817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 161855817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 161955817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1620f986038beed360c031de8654cfba43a5d3184605Francois Pichet 16213896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregorbool Parser::ParseMicrosoftIfExistsCondition(IfExistsCondition& Result) { 1622f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 1623f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 16243896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.IsIfExists = Tok.is(tok::kw___if_exists); 16253896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.KeywordLoc = ConsumeToken(); 1626f986038beed360c031de8654cfba43a5d3184605Francois Pichet 16274a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 16284a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 16293896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Diag(Tok, diag::err_expected_lparen_after) 16303896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor << (Result.IsIfExists? "__if_exists" : "__if_not_exists"); 1631f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1632f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1633f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1634f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 1635efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(Result.SS, ParsedType(), 1636efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false); 1637f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1638f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 16393896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Result.SS.isInvalid()) { 16403896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1641f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1642f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1643f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1644e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // Parse the unqualified-id. 1645e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; // FIXME: parsed, but unused. 1646e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(Result.SS, false, true, true, ParsedType(), 1647e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, Result.Name)) { 16483896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1649f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1650f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1651f986038beed360c031de8654cfba43a5d3184605Francois Pichet 16523896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (T.consumeClose()) 1653f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 16543896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1655f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 165665019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor switch (Actions.CheckMicrosoftIfExistsSymbol(getCurScope(), Result.KeywordLoc, 165765019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor Result.IsIfExists, Result.SS, 16583896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Name)) { 16593896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Exists: 16603896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = Result.IsIfExists ? IEB_Parse : IEB_Skip; 16613896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 1662f986038beed360c031de8654cfba43a5d3184605Francois Pichet 16633896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_DoesNotExist: 16643896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = !Result.IsIfExists ? IEB_Parse : IEB_Skip; 16653896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 16663896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 16673896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Dependent: 16683896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = IEB_Dependent; 16693896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 167065019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor 167165019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor case Sema::IER_Error: 167265019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor return true; 16733896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 1674f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1675f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 1676f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1677f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1678563a645de82231a55e221fe655b7188bf8369662Francois Pichetvoid Parser::ParseMicrosoftIfExistsExternalDeclaration() { 16793896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor IfExistsCondition Result; 1680f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 1681f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1682f986038beed360c031de8654cfba43a5d3184605Francois Pichet 16833896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor BalancedDelimiterTracker Braces(*this, tok::l_brace); 16843896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Braces.consumeOpen()) { 1685f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lbrace); 1686f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1687f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1688f986038beed360c031de8654cfba43a5d3184605Francois Pichet 16893896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor switch (Result.Behavior) { 16903896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Parse: 16913896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse declarations below. 16923896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 16933896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 16943896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Dependent: 16953896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor llvm_unreachable("Cannot have a dependent external declaration"); 16963896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 16973896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Skip: 16983896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.skipToEnd(); 1699f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1700f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1701f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17023896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse the declarations. 17033896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { 1704f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 1705f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseCXX0XAttributes(attrs); 1706f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 1707f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 1708f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 1709f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 17103896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 17113896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.consumeClose(); 1712f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 17136aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 17145948ae1021122164b22f74353bb7fe325a64f616Douglas GregorParser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) { 171532ad2ee2618745ce3da51c2ae066ed5f21157c07Ted Kremenek assert(Tok.isObjCAtKeyword(tok::objc___experimental_modules_import) && 171665030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor "Improper start to module import"); 17176aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ImportLoc = ConsumeToken(); 17186aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 17193d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor llvm::SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path; 17203d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 17213d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Parse the module path. 17223d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor do { 17233d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (!Tok.is(tok::identifier)) { 1724c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor if (Tok.is(tok::code_completion)) { 1725c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor Actions.CodeCompleteModuleImport(ImportLoc, Path); 1726c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor ConsumeCodeCompletionToken(); 1727c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor SkipUntil(tok::semi); 1728c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor return DeclGroupPtrTy(); 1729c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor } 1730c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor 17313d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Diag(Tok, diag::err_module_expected_ident); 17323d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor SkipUntil(tok::semi); 17333d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor return DeclGroupPtrTy(); 17343d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 17353d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 17363d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Record this part of the module path. 17373d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Path.push_back(std::make_pair(Tok.getIdentifierInfo(), Tok.getLocation())); 17383d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 17393d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 17403d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (Tok.is(tok::period)) { 17413d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 17423d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor continue; 17433d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 17443d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 17453d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor break; 17463d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } while (true); 17476aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 17485948ae1021122164b22f74353bb7fe325a64f616Douglas Gregor DeclResult Import = Actions.ActOnModuleImport(AtLoc, ImportLoc, Path); 17496aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor ExpectAndConsumeSemi(diag::err_module_expected_semi); 17506aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (Import.isInvalid()) 17516aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 17526aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 17536aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return Actions.ConvertDeclToDeclGroup(Import.get()); 17546aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor} 17554a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1756c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseOverflow() { 1757d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, diag::err_parser_impl_limit_overflow); 1758d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.SkipUntil(tok::eof); 1759d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 17604a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 17614a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1762c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, 17634a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor const char *Msg, 17644a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor tok::TokenKind SkipToToc ) { 17654a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.Tok.getLocation(); 1766d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.ExpectAndConsume(Kind, DiagID, Msg, SkipToToc)) 1767d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 1768d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1769d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (getDepth() < MaxDepth) 1770d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return false; 1771d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1772d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return diagnoseOverflow(); 17734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 17744a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1775c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseMissingClose() { 1776d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor assert(!P.Tok.is(Close) && "Should have consumed closing delimiter"); 1777d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1778d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor const char *LHSName = "unknown"; 1779b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie diag::kind DID; 1780d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor switch (Close) { 1781b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie default: llvm_unreachable("Unexpected balanced token"); 1782d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; 1783d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; 1784d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; 17854a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 1786d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, DID); 1787d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(LOpen, diag::note_matching) << LHSName; 1788d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.SkipUntil(Close)) 1789d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor LClose = P.Tok.getLocation(); 17904a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 17914a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 17923896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1793c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorvoid BalancedDelimiterTracker::skipToEnd() { 17943896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor P.SkipUntil(Close, false); 17953896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor} 1796