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 2669b5e952c56f95673064ad1815a240e0fb595865Benjamin Kramernamespace { 27aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// \brief A comment handler that passes comments found by the preprocessor 28aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// to the parser action. 29aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkoclass ActionCommentHandler : public CommentHandler { 30aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko Sema &S; 31aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 32aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkopublic: 33aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko explicit ActionCommentHandler(Sema &S) : S(S) { } 34aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 35aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko virtual bool HandleComment(Preprocessor &PP, SourceRange Comment) { 36aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko S.ActOnComment(Comment); 37aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko return false; 38aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko } 39aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko}; 4069b5e952c56f95673064ad1815a240e0fb595865Benjamin Kramer} // end anonymous namespace 41aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 42b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas GregorIdentifierInfo *Parser::getSEHExceptKeyword() { 43b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor // __except is accepted as a (contextual) keyword 444e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Ident__except && (getLangOpts().MicrosoftExt || getLangOpts().Borland)) 45b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = PP.getIdentifierInfo("__except"); 46b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 47b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor return Ident__except; 48b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor} 49b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 506a91d385618ea4d28236c496f540a26877c95525Erik VerbruggenParser::Parser(Preprocessor &pp, Sema &actions, bool SkipFunctionBodies) 51614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 520fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 536a91d385618ea4d28236c496f540a26877c95525Erik Verbruggen InMessageExpression(false), TemplateParameterDepth(0), 5494f29f4bf5d6b49dd1b7fc16cfa1521adc0c71c0Jordan Rose ParsingInObjCContainer(false), SkipFunctionBodies(SkipFunctionBodies) { 555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 5623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 579e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 59849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl = 0; 60fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 61fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 62fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 63cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(new PragmaAlignHandler(actions)); 64cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.AddPragmaHandler(AlignHandler.get()); 65cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar 66aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler(actions)); 67aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); 68aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman 699b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis OptionsHandler.reset(new PragmaOptionsHandler(actions)); 709b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(OptionsHandler.get()); 719b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 729b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PackHandler.reset(new PragmaPackHandler(actions)); 739b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(PackHandler.get()); 7462c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian 7562c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(new PragmaMSStructHandler(actions)); 7662c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.AddPragmaHandler(MSStructHandler.get()); 779b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 78facde171ae4b8926622a1bffa833732a06f1875bBenjamin Kramer UnusedHandler.reset(new PragmaUnusedHandler(actions)); 799b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(UnusedHandler.get()); 809b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 819b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis WeakHandler.reset(new PragmaWeakHandler(actions)); 829b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(WeakHandler.get()); 83321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne 845f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall RedefineExtnameHandler.reset(new PragmaRedefineExtnameHandler(actions)); 855f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.AddPragmaHandler(RedefineExtnameHandler.get()); 865f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall 87facde171ae4b8926622a1bffa833732a06f1875bBenjamin Kramer FPContractHandler.reset(new PragmaFPContractHandler(actions)); 88321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.AddPragmaHandler("STDC", FPContractHandler.get()); 89f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 904e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 91facde171ae4b8926622a1bffa833732a06f1875bBenjamin Kramer OpenCLExtensionHandler.reset(new PragmaOpenCLExtensionHandler(actions)); 92f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 93f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 94f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); 95f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 96aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 97056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko CommentSemaHandler.reset(new ActionCommentHandler(actions)); 98056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.addCommentHandler(CommentSemaHandler.get()); 99aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 100f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1030102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// If a crash happens while the parser is active, print out a line indicating 1040102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// what the current token is. 1055f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid PrettyStackTraceParserEntry::print(raw_ostream &OS) const { 1060102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &Tok = P.getCurToken(); 107ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.is(tok::eof)) { 1080102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner OS << "<eof> parser at end of file\n"; 1090102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner return; 1100102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner } 1111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 112ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.getLocation().isInvalid()) { 113ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner OS << "<unknown> parser at unknown location\n"; 114ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner return; 115ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner } 1161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1170102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Preprocessor &PP = P.getPreprocessor(); 1180102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Tok.getLocation().print(OS, PP.getSourceManager()); 1199fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar if (Tok.isAnnotation()) 1209fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": at annotation token \n"; 1219fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar else 1229fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": current parser token '" << PP.getSpelling(Tok) << "'\n"; 123f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor} 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1250102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 1263cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 12733e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 1281ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 1291ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 1303cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 1311ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1344b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 1354b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 1364b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 1374b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 13870517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko/// \param DK The kind of diagnostic to emit. 1394b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 1404b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 1414b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 142b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 143b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 1444b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 1454b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 1464b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 1474b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 1484b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 1491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 151849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 152849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1534b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1544b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 155837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 156837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 157837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall case tok::semi: return Tok.is(tok::colon); // : for ; 158837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 159837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 160837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 161837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// input. If so, it is consumed and false is returned. 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If the input is malformed, this emits the specified diagnostic. Next, if 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// returned. 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Msg, tok::TokenKind SkipToTok) { 170dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 174a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 175837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 176837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 177837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 178837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall Diag(Loc, DiagID) 179837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << Msg 180837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << FixItHint::CreateReplacement(SourceRange(Loc), 181837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall getTokenSimpleSpelling(ExpectedTok)); 182837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall ConsumeAnyToken(); 183837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 184837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 185837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 186837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 187837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1884b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor const char *Spelling = 0; 189b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EndLoc.isValid() && 191b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { 1924b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // Show what code to insert to fix this problem. 1931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(EndLoc, DiagID) 1944b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor << Msg 195849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, Spelling); 1964b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } else 1974b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Tok, DiagID) << Msg; 1984b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (SkipToTok != tok::unknown) 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(SkipToTok); 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2049ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 2059ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { 206fb5825dca4e95fee463fdeaddb8b729294fb4d10Douglas Gregor ConsumeToken(); 2079ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2089ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2099ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2109ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 2119ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 2129ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 2139ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 2149ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 2159ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 2169ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 2179ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2189ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2199ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2209ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 2219ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 2229ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 223eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smithvoid Parser::ConsumeExtraSemi(ExtraSemiKind Kind, unsigned TST) { 2244b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu if (!Tok.is(tok::semi)) return; 2254b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 226eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith bool HadMultipleSemis = false; 2274b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation StartLoc = Tok.getLocation(); 2284b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation EndLoc = Tok.getLocation(); 2294b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2304b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2314b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu while ((Tok.is(tok::semi) && !Tok.isAtStartOfLine())) { 232eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith HadMultipleSemis = true; 2334b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu EndLoc = Tok.getLocation(); 2344b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2354b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2364b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 237eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // C++11 allows extra semicolons at namespace scope, but not in any of the 238eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // other contexts. 239eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind == OutsideFunction && getLangOpts().CPlusPlus) { 240eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (getLangOpts().CPlusPlus0x) 241eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_cxx98_compat_top_level_semi) 242eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 243eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 244eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi_cxx11) 245eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2464b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu return; 2474b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2484b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 249eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind != AfterMemberFunctionDefinition || HadMultipleSemis) 250eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi) 251eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << Kind << DeclSpec::getSpecifierName((DeclSpec::TST)TST) 252eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 253eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 254eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // A single semicolon is valid after a member function definition. 255eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_extra_semi_after_mem_fn_def) 256eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2574b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu} 2584b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 264012cf464254804279efa84e21b4b493dde76c5f1Chris Lattner/// it (unless DontConsume is true). Because we cannot guarantee that the 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 268a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 270a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 271eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikiebool Parser::SkipUntil(ArrayRef<tok::TokenKind> Toks, bool StopAtSemi, 272eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie bool DontConsume, bool StopAtCodeCompletion) { 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 278eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie for (unsigned i = 0, NumToks = Toks.size(); i != NumToks; ++i) { 279000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DontConsume) { 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 288a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 293dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 294dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2953437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis if (!StopAtCodeCompletion) 2963437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis ConsumeToken(); 297dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 298dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 3023437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 3073437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3123437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 314a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 335a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 3385cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 3395cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 3405cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 3415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 3425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 34355edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (StopAtSemi) 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 354a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 3639e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 3649e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 36523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 36623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 3689c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 3695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 37423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 37690ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 37790ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 37823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (!getCurScope()->decl_empty()) 37923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 380a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 38123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 38223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 383a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3849e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 3859e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 3865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3879e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 3885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3907a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Set the flags for the current scope to ScopeFlags. If ManageFlags is false, 3917a614d8380297fcd2bc23986241905d97222948cRichard Smith/// this object does nothing. 3927a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::ParseScopeFlags(Parser *Self, unsigned ScopeFlags, 3937a614d8380297fcd2bc23986241905d97222948cRichard Smith bool ManageFlags) 3947a614d8380297fcd2bc23986241905d97222948cRichard Smith : CurScope(ManageFlags ? Self->getCurScope() : 0) { 3957a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) { 3967a614d8380297fcd2bc23986241905d97222948cRichard Smith OldFlags = CurScope->getFlags(); 3977a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(ScopeFlags); 3987a614d8380297fcd2bc23986241905d97222948cRichard Smith } 3997a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4017a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Restore the flags for the current scope to what they were before this 4027a614d8380297fcd2bc23986241905d97222948cRichard Smith/// object overrode them. 4037a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::~ParseScopeFlags() { 4047a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) 4057a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(OldFlags); 4067a614d8380297fcd2bc23986241905d97222948cRichard Smith} 4075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 4115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 4145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 41523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 41623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 41723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 4199e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 4209e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 421fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 4228387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Free LateParsedTemplatedFunction nodes. 4238387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet for (LateParsedTemplateMapT::iterator it = LateParsedTemplateMap.begin(); 4248387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet it != LateParsedTemplateMap.end(); ++it) 4258387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet delete it->second; 4268387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 427fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Remove the pragma handlers we installed. 428cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.RemovePragmaHandler(AlignHandler.get()); 429cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(); 430aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.RemovePragmaHandler("GCC", GCCVisibilityHandler.get()); 431aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(); 4329b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(OptionsHandler.get()); 433861800c676004eabed5927f0552620d06c80a40aDaniel Dunbar OptionsHandler.reset(); 4349b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(PackHandler.get()); 4354726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek PackHandler.reset(); 43662c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.RemovePragmaHandler(MSStructHandler.get()); 43762c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(); 4389b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(UnusedHandler.get()); 4394726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek UnusedHandler.reset(); 4409b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(WeakHandler.get()); 4419991479ad5dde617168cc1e4b18425cdbbfd9fa9Eli Friedman WeakHandler.reset(); 4425f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.RemovePragmaHandler(RedefineExtnameHandler.get()); 4435f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall RedefineExtnameHandler.reset(); 444f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 4454e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 446f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 447f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset(); 448f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); 449f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 450f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 451321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.RemovePragmaHandler("STDC", FPContractHandler.get()); 452321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(); 453aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 454056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.removeCommentHandler(CommentSemaHandler.get()); 455aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 456f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 45713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 45813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); 4595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 4625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 46431e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 46523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "A scope is already active?"); 46631e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 467c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 468c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 469c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor // Prime the lexer look-ahead. 470c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor ConsumeToken(); 471a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 47234870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 473a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 4744e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1) { 475a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 476a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 477a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 478a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 479a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 480a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 48134870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 482662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 483e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Ident_instancetype = 0; 4847eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_final = 0; 4857eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_override = 0; 4861f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 487662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 48882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 4894e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().AltiVec) { 49082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 49182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 49282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4930a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4940a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_introduced = 0; 4950a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_deprecated = 0; 4960a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_obsoleted = 0; 497b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Ident_unavailable = 0; 49828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 499b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = 0; 500b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 50128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = Ident__exception_info = Ident__abnormal_termination = 0; 50228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = Ident___exception_info = Ident___abnormal_termination = 0; 50328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = Ident_GetExceptionInfo = Ident_AbnormalTermination = 0; 50428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 5054e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if(getLangOpts().Borland) { 50628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 50728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 50828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 50928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 51028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 51128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 51228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 51328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 51428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 51528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 51628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 51728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 51828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 51928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 52028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 52128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 52228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 52328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 52428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 52528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 52813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramernamespace { 52913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// \brief RAIIObject to destroy the contents of a SmallVector of 53013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// TemplateIdAnnotation pointers and clear the vector. 53113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer class DestroyTemplateIdAnnotationsRAIIObj { 53213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer SmallVectorImpl<TemplateIdAnnotation *> &Container; 53313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer public: 53413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj(SmallVectorImpl<TemplateIdAnnotation *> 53513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer &Container) 53613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer : Container(Container) {} 53713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 53813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer ~DestroyTemplateIdAnnotationsRAIIObj() { 53913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = 54013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.begin(), E = Container.end(); 54113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer I != E; ++I) 54213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer (*I)->Destroy(); 54313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.clear(); 54413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer } 54513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer }; 54613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer} 54713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 5485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 5495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 550682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 55113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 552b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 553e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // Skip over the EOF token, flagging end of previous input for incremental 554e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // processing 555e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (PP.isIncrementalProcessingEnabled() && Tok.is(tok::eof)) 556e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann ConsumeToken(); 557e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 558b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis while (Tok.is(tok::annot_pragma_unused)) 559b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 560b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 561682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Result = DeclGroupPtrTy(); 5629299f3fa85796613cc787a2062c9562d07c8613eChris Lattner if (Tok.is(tok::eof)) { 5638387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 5644e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing) 5658387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.SetLateTemplateParser(LateTemplateParserCallback, this); 566e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (!PP.isIncrementalProcessingEnabled()) 567e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann Actions.ActOnEndOfTranslationUnit(); 568e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann //else don't tell Sema that we ended parsing: more input might come. 5698387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 5709299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 5719299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 572a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5730b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 5747f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseCXX0XAttributes(attrs); 5757f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 576e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 5777f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTranslationUnit: 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// translation-unit: [C99 6.9] 583a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// external-declaration 584a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// translation-unit external-declaration 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseTranslationUnit() { 5868935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Initialize(); 587a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 588682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy Res; 58989307ffaf8acf4d6fdffd72b607ca4fbcfdffc9dSteve Naroff while (!ParseTopLevelDecl(Res)) 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /*parse them all*/; 5911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 59206f548596beef4c0a227a45cba996497f99566c0Chris Lattner ExitScope(); 59323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "Scope imbalance!"); 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 59790b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 598c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 599c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 600c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 601a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 603c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 610c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 6135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 614a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration: 615a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 616a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 61745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 6187f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 6197f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 6207f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 62113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 62236d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 6237d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 6247d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis if (PP.isCodeCompletionReached()) { 6257d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6267d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 6277d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis } 6287d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 629d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *SingleDecl = 0; 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 631426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola case tok::annot_pragma_vis: 632426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola HandlePragmaVisibility(); 633426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola return DeclGroupPtrTy(); 634aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman case tok::annot_pragma_pack: 635aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman HandlePragmaPack(); 636aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman return DeclGroupPtrTy(); 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 6384b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeExtraSemi(OutsideFunction); 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Invoke action for top-level semicolon. 640682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 64190b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 642883692ebd421c40b44e2c2665e5f54dade5621bcNico Weber Diag(Tok, diag::err_extraneous_closing_brace); 64390b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 644682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 64590b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 64690b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 647682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 648c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 649c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 650c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 65139146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 6527f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 653c3018153a11afe91849748a93d920040a571b76cChris Lattner } 654dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 6557f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 656bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 65721e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 65821e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 65921e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 660a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 6613f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 6623f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 663dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 664682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 665682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 66621e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 667682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 668dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 67095ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian return ParseObjCAtDirectives(); 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 6734e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().ObjC1) { 674682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 675682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 676682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 677682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 678682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 679682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 680791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 68123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 682849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl? Sema::PCC_ObjCImplementation 683f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 6847d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6857d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 686f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 6878f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 689adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 690adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 691511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 692c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 69326d6023cb0d343bf8fc8836f97d39709bbd4afa0Chad Rosier // A function definition cannot start with any of these keywords. 69497144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 69597144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 6964e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 6977f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 69897144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 699d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 7007306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 7017306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 7027306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7034e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 7047306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7057306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 706d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 7074e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7087f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7097306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7107306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 7117306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7127306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 7134e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 7147306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 7157306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7167306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 7177306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 7187306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7194e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7207f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7217306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7227306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7237306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 7247306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7257306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 7267306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7277306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 7287306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7294e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7307f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7317306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 732d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 733d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 734d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 73545f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 7364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 73745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 73845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 73945f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 7404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(ExternLoc, getLangOpts().CPlusPlus0x ? 7419324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::warn_cxx98_compat_extern_template : 7429324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); 74345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 74445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 7459241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ParseExplicitInstantiation(Declarator::FileContext, 7469241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ExternLoc, TemplateLoc, DeclEnd)); 74745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 74845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // FIXME: Detect C++ linkage specifications here? 749d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 7501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 751f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 752f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 753563a645de82231a55e221fe655b7188bf8369662Francois Pichet ParseMicrosoftIfExistsExternalDeclaration(); 754f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 7556aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 757d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 7597f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (DS) { 7602edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclarationOrFunctionDefinition(attrs, DS); 7617f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } else { 7627f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(attrs); 7637f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 766682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 767682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 768682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7711426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7721426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 773e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 774e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 7754e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 776e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 777e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 778e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 779e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 7806c89eafc90f5c51a0bf185a993961170aee530c2Fariborz Jahanian 7811426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 7821426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 7831426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 7841426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 7851426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 7864e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().CPlusPlus && 78739700f81c5b42e6be93be10275602915f872fc86Fariborz Jahanian Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 7881426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7891426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 7901426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7911426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 792004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 793075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 7945d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 7955d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 7965d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 797004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 7984e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus && 799075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 800004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 801e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 8024e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 803e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 804e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 805e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 806004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 8075d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 8085d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 8091426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 8101426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 8125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 813c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 814c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 8151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 818a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 819a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 820a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 821a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 8225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 823697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 824697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 827682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 8282edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclOrFunctionDefInternal(ParsedAttributesWithRange &attrs, 8292edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec &DS, 8302edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt AccessSpecifier AS) { 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 8320efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 833a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 836000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 8372edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 839d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 84054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 841682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 843a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8442edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt DS.takeAttributesFrom(attrs); 8452edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 846246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 847246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 848246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 8494e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC2 && Tok.is(tok::at)) { 850dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 8511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 852246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 853246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 854cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 855682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 856cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 857d8ac05753dc4506224d445ff98399c01da3136e5John McCall 85854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 85954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 8600de2ae28c603322f05e2d9200c7d457c8b928983Fariborz Jahanian const char *PrevSpec = 0; 861fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 862fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) 863fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 8641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 865246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 866bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 867bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 868bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return Actions.ConvertDeclToDeclGroup( 869bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes())); 870dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 871a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 872c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 873c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 874c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 8754e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Tok.is(tok::string_literal) && getLangOpts().CPlusPlus && 876c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 877682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 878d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 879682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 880682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 881c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 882d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8853acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 8862edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclarationOrFunctionDefinition(ParsedAttributesWithRange &attrs, 8872edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec *DS, 8883acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 8892edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt if (DS) { 8902edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, *DS, AS); 8912edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } else { 8922edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec PDS(*this); 8932edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // Must temporarily exit the objective-c container scope for 8942edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // parsing c constructs and re-enter objc container scope 8952edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // afterwards. 8962edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ObjCDeclContextSwitch ObjCDC(*this); 8972edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 8982edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, PDS, AS); 8992edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } 9003acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 9013acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 9025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 9035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 906a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 907a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 908a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 909a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 9107ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 91123c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 91223c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 9137ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 914d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 916d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 917c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins const ParsedTemplateInfo &TemplateInfo, 918c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins LateParsedAttrList *LateParsedAttrs) { 91928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley // Poison the SEH identifiers so they are flagged as illegal in function bodies 92028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 921075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 922a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 923a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 924a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 925a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 9264e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ImplicitInt && D.getDeclSpec().isEmpty()) { 927a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 928fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 92931c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 93031c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 931fec54013fcd0eb72642741584ca04c1bc292bef8John McCall PrevSpec, DiagID); 932ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 933a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 934a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 938004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9417ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 9427ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 943758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 9444e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!getLangOpts().CPlusPlus || 945cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && 946cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Tok.isNot(tok::equal)))) { 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::l_brace, true, true); 951a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 953000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 954d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 956a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 957c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Check to make sure that any normal attributes are allowed to be on 958c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // a definition. Late parsed attributes are checked at the end. 959c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (Tok.isNot(tok::equal)) { 960c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins AttributeList *DtorAttrs = D.getAttributes(); 961c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins while (DtorAttrs) { 962c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (!IsThreadSafetyAttribute(DtorAttrs->getName()->getName())) { 963c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins Diag(DtorAttrs->getLoc(), diag::warn_attribute_on_function_definition) 964c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins << DtorAttrs->getName()->getName(); 965c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 966c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins DtorAttrs = DtorAttrs->getNext(); 967c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 968c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 969c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 9708387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 9718387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 9724e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing && 9730963017dcbc32176c79a251c3ab23bc35ac784e5Douglas Gregor Tok.isNot(tok::equal) && 9748387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind == ParsedTemplateInfo::Template) { 9755354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg TemplateParameterLists(*TemplateInfo.TemplateParams); 9768387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9778387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 9788387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 9798387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 98045fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(FDK_Definition); 9818387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 9823fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer TemplateParameterLists); 9838387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 9848387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 9858387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9868387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (DP) { 987e1fca502e7f1349e9b4520a4ca9a02413bcf2b14Francois Pichet LateParsedTemplatedFunction *LPT = new LateParsedTemplatedFunction(DP); 9888387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9898387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FnD = 0; 9908387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(DP)) 9918387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = FunTmpl->getTemplatedDecl(); 9928387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 9938387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = cast<FunctionDecl>(DP); 994d4a0caf78e7c18e7aca65fbfd799a6c024ff51fbFrancois Pichet Actions.CheckForFunctionRedefinition(FnD); 9958387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9968387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplateMap[FnD] = LPT; 9978387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.MarkAsLateParsedTemplate(FnD); 9988387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(LPT->Toks); 9998387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } else { 10008387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet CachedTokens Toks; 10018387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(Toks); 10028387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10038387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 10048387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10052eb362b50f34296c39d5ec3e5e1bd6a2c9a5877eFariborz Jahanian else if (CurParsedObjCImpl && 10069e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian !TemplateInfo.TemplateParams && 10079e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian (Tok.is(tok::l_brace) || Tok.is(tok::kw_try) || 10089e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian Tok.is(tok::colon)) && 1009be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Actions.CurContext->isTranslationUnit()) { 1010be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1011be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Scope *ParentScope = getCurScope()->getParent(); 1012be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian 1013be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.setFunctionDefinitionKind(FDK_Definition); 1014be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Decl *FuncDecl = Actions.HandleDeclarator(ParentScope, D, 10155354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg()); 1016be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.complete(FuncDecl); 1017be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.getMutableDeclSpec().abort(); 1018be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian if (FuncDecl) { 1019be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian // Consume the tokens and store them for later parsing. 1020be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian StashAwayMethodOrFunctionBodyTokens(FuncDecl); 1021be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian CurParsedObjCImpl->HasCFunction = true; 1022be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian return FuncDecl; 1023be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1024be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1025be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian 1026b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 10278935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1028a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1029b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 1030b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 1031d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 103223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 10335354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer *TemplateInfo.TemplateParams, D) 103423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 1035a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 103654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 103754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 103854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 103954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 104054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 104154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 104254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 1043cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::equal)) { 10444e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Only C++ function definitions have '='"); 1045cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ConsumeToken(); 1046cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1047cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.ActOnFinishFunctionBody(Res, 0, false); 1048cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1049cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt bool Delete = false; 1050cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SourceLocation KWLoc; 1051cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::kw_delete)) { 10524e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 10537fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_deleted_function : 1054d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_deleted_function); 1055cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1056cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1057cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDeleted(Res, KWLoc); 1058cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete = true; 1059cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else if (Tok.is(tok::kw_default)) { 10604e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 10617fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_defaulted_function : 1062d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_defaulted_function); 1063cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1064cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1065cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDefaulted(Res, KWLoc); 1066cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1067cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 1068cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1069cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1070cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::comma)) { 1071cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 1072cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt << Delete; 1073cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SkipUntil(tok::semi); 1074cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1075cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 1076cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete ? "delete" : "default", tok::semi); 1077cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1078cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1079cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt return Res; 1080cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1081cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1082d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 1083c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 1084d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 10857ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 10867ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 1087d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 10887ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 1089d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 1090d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 1091d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 1092c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 10939ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Actions.ActOnFinishFunctionBody(Res, 0); 1094d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 1095d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 1096d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 1097393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 10987ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 1099c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Late attributes are parsed in the same scope as the function body. 1100c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (LateParsedAttrs) 1101c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins ParseLexedAttributeList(*LateParsedAttrs, Res, false, true); 1102c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 1103c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 11045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 11075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 1110075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 111204421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 111304421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 11143218c4bb3b5d7250f12420de6db7ef3e3f805a75Douglas Gregor ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope|Scope::DeclScope); 111504421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 1119a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 11210b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1123a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 11255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1129000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1134a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.isThreadSpecified()) { 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getThreadSpecLoc(), 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1148a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 11567f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 1157a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 1159d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 116023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 11612bd42fadafddc8acf744b57a970bdc96a077c617Steve Naroff 1162a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (i == FTI.NumArgs) { 11721ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 11736898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1176a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 117904421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner if (FTI.ArgInfo[i].Param) { 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 11811ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 11826898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 118404421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner FTI.ArgInfo[i].Param = Param; 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 1193000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 1195a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11967984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.clear(); 11977984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 11997984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.setCommaLoc(ConsumeToken()); 1200a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1204a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12058bb21d32e9ccc9d9c221506dff26acafa8724ccaChris Lattner if (ExpectAndConsumeSemi(diag::err_expected_semi_declaration)) { 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip to end of block or statement 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::semi, true); 1208000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1212a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 121423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 12225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 122460d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 12257f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek switch (Tok.getKind()) { 12267f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::string_literal: 12277f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek break; 122899831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf8_string_literal: 122999831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf16_string_literal: 123099831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf32_string_literal: 12317f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::wide_string_literal: { 12327f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek SourceLocation L = Tok.getLocation(); 12337f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_asm_operand_wide_string_literal) 123499831e4677a7e2e051af636221694d60ba31fcdbRichard Smith << (Tok.getKind() == tok::wide_string_literal) 12357f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek << SourceRange(L, L); 12367f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12377f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek } 12387f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek default: 12397f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_expected_string_literal); 12407f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1242a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 124399831e4677a7e2e051af636221694d60ba31fcdbRichard Smith return ParseStringLiteralExpression(); 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 125160d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1252000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1253dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1254a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12557a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1256841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1257841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1258841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1259841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1260841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1261849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 12627a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 12637a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 12647a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 12654a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 12664a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 12671ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 126861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1270a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 127160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1272a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1273ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Result.isInvalid()) { 1274ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SkipUntil(tok::r_paren, true, true); 1275ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 1276ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Tok.getLocation(); 1277ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl ConsumeAnyToken(); 1278ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } else { 12794a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Close the paren and get the location of the end bracket 12804a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1281ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 12824a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor *EndLoc = T.getCloseLocation(); 1283ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1284a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12853fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 12865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 128825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// \brief Get the TemplateIdAnnotation from the token and put it in the 128925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// cleanup pool so that it gets destroyed when parsing the current top level 129025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// declaration is finished. 129125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios KyrtzidisTemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { 129225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis assert(tok.is(tok::annot_template_id) && "Expected template-id token"); 129325a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation * 129425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); 129525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis return Id; 129625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis} 129725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis 12980576681bac125be07f77f66b02a3dba2c3a24557Richard Smithvoid Parser::AnnotateScopeToken(CXXScopeSpec &SS, bool IsNewAnnotation) { 12990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Push the current token back into the token stream (or revert it if it is 13000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // cached) and use an annotation scope token for current token. 13010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (PP.isBacktrackEnabled()) 13020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.RevertCachedTokens(1); 13030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith else 13040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.EnterToken(Tok); 13050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_cxxscope); 13060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 13070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationRange(SS.getRange()); 13080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // In case the tokens were cached, have Preprocessor replace them 13100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // with the annotation token. We don't need to do this if we've 13110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // just reverted back to a prior state. 13120576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (IsNewAnnotation) 13130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 13140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 13150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Attempt to classify the name at the current token position. This may 13170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// form a type, scope or primary expression annotation, or replace the token 13180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// with a typo-corrected keyword. This is only appropriate when the current 13190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// name must refer to an entity which has already been declared. 13200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// 13210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param IsAddressOfOperand Must be \c true if the name is preceded by an '&' 13220576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// and might possibly have a dependent nested name specifier. 13230576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param CCC Indicates how to perform typo-correction for this name. If NULL, 13240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// no typo correction will be performed. 13250576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::AnnotatedNameKind 13260576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::TryAnnotateName(bool IsAddressOfOperand, 13270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CorrectionCandidateCallback *CCC) { 13280576681bac125be07f77f66b02a3dba2c3a24557Richard Smith assert(Tok.is(tok::identifier) || Tok.is(tok::annot_cxxscope)); 13290576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13300576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool EnteringContext = false; 13310576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 13320576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13330576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec SS; 13340576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (getLangOpts().CPlusPlus && 13350576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 13360576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13370576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13380576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Tok.isNot(tok::identifier) || SS.isInvalid()) { 13390576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 13400576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 13410576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13420576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 13430576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 13440576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13450576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IdentifierInfo *Name = Tok.getIdentifierInfo(); 13460576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SourceLocation NameLoc = Tok.getLocation(); 13470576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13480576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // FIXME: Move the tentative declaration logic into ClassifyName so we can 13490576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // typo-correct to tentatively-declared identifiers. 13500576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (isTentativelyDeclared(Name)) { 13510576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Identifier has been tentatively declared, and thus cannot be resolved as 13520576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // an expression. Fall back to annotating it as a type. 13530576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 13540576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 13550576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13560576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return Tok.is(tok::annot_typename) ? ANK_Success : ANK_TentativeDecl; 13570576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 13580576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13590576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Token Next = NextToken(); 13600576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13610576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Look up and classify the identifier. We don't perform any typo-correction 13620576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // after a scope specifier, because in general we can't recover from typos 13630576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // there (eg, after correcting 'A::tempalte B<X>::C', we would need to jump 13640576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // back into scope specifier parsing). 13650576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Sema::NameClassification Classification 13660576681bac125be07f77f66b02a3dba2c3a24557Richard Smith = Actions.ClassifyName(getCurScope(), SS, Name, NameLoc, Next, 13670576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IsAddressOfOperand, SS.isEmpty() ? CCC : 0); 13680576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13690576681bac125be07f77f66b02a3dba2c3a24557Richard Smith switch (Classification.getKind()) { 13700576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Error: 13710576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13720576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13730576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Keyword: 13740576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // The identifier was typo-corrected to a keyword. 13750576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setIdentifierInfo(Name); 13760576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(Name->getTokenID()); 13770576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.TypoCorrectToken(Tok); 13780576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 13790576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 13800576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We've "annotated" this as a keyword. 13810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 13820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Unknown: 13840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // It's not something we know about. Leave it unannotated. 13850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith break; 13860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Type: 13880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_typename); 13890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setTypeAnnotation(Tok, Classification.getType()); 13900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 13910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 13920576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 13930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 13940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 13950576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Expression: 13970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_primary_expr); 13980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setExprAnnotation(Tok, Classification.getExpression()); 13990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 14000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 14020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 14030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_TypeTemplate: 14060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Next.isNot(tok::less)) { 14070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // This may be a type template being used as a template template argument. 14080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_TemplateName; 14110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14120576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Fall through. 14130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_FunctionTemplate: { 14140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We have a type or function template followed by '<'. 14150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ConsumeToken(); 14160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith UnqualifiedId Id; 14170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Id.setIdentifier(Name, NameLoc); 14180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (AnnotateTemplateIdToken( 14190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith TemplateTy::make(Classification.getTemplateName()), 14200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Classification.getTemplateNameKind(), SS, SourceLocation(), Id)) 14210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 14220576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14230576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14250576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_NestedNameSpecifier: 14260576681bac125be07f77f66b02a3dba2c3a24557Richard Smith llvm_unreachable("already parsed nested name specifier"); 14270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14280576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14290576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Unable to classify the name, but maybe we can annotate a scope specifier. 14300576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14310576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14320576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 14330576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 14340576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 1435eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1436eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1437eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1438eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1439eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1440eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1441eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1442eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 144344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 144444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 144544802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 144644802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 144744802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1448b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 144944802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 145044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 145144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1452a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 14539ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 14541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 145555a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 145655a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1457fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrainbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { 14581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 145942d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope) 146023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith || Tok.is(tok::kw_decltype) || Tok.is(tok::annot_template_id)) 146123756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith && "Cannot be a type or scope token!"); 14621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1463d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 1464d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1465d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1466d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1467d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 14681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 14691734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1470d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1471d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 1472efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), 1473efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false, 14744147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 0, /*IsTypename*/true)) 14759ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 14769ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 1477b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::identifier) || Tok.is(tok::annot_template_id) || 1478b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet Tok.is(tok::annot_decltype)) { 147923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // Attempt to recover by skipping the invalid 'typename' 1480b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::annot_decltype) || 1481b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet (!TryAnnotateTypeOrScopeToken(EnteringContext, NeedType) && 1482b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet Tok.isAnnotation())) { 148323756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith unsigned DiagID = diag::err_expected_qualified_after_typename; 148423756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // MS compatibility: MSVC permits using known types with typename. 148523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // e.g. "typedef typename T* pointer_type" 148623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith if (getLangOpts().MicrosoftExt) 148723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith DiagID = diag::warn_expected_qualified_after_typename; 148823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), DiagID); 148923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith return false; 149023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 149123756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 149223756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith 149323756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 14949ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1495d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1496d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1497d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1498d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1499d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 150023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 15011a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1502d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 15031734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 150425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 15051734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (TemplateId->Kind == TNK_Function_template) { 15061734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 15071734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 15089ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15091734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1510d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 15115354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), 1512a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 151366581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara 1514a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 151566581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateId->TemplateKWLoc, 1516a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1517a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1518a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 151966581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateArgsPtr, 1520a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 15211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 15221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 15231734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 15249ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 152739d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 15281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1529b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 153039d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 15311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 15321734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 15339ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1534d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1535d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1536ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 15370576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1538ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1539eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 15404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 1541b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 15429ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1543eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 15440576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, NeedType, 15450576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SS, !WasScopeAnnotation); 15460576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 15470576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15480576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Try to annotate a type or scope token, having already parsed an 15490576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// optional scope specifier. \p IsNewScope should be \c true unless the scope 15500576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// specifier was extracted from an existing tok::annot_cxxscope annotation. 15510576681bac125be07f77f66b02a3dba2c3a24557Richard Smithbool Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(bool EnteringContext, 15520576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool NeedType, 15530576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec &SS, 15540576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool IsNewScope) { 1555eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 1556fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain IdentifierInfo *CorrectedII = 0; 1557608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1558b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1559b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 15601e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 15619e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 15629e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 1563fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/false, 1564fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain /*NonTrivialTypeSourceInfo*/true, 1565fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain NeedType ? &CorrectedII : NULL)) { 1566fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain // A FixIt was applied as a result of typo correction 1567fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain if (CorrectedII) 1568fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain Tok.setIdentifierInfo(CorrectedII); 1569608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1570608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1571b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1572b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1573608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1574608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1575608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 15761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1577608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1578608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1579608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 15809ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 15811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 158239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 15834e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 1584608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1585608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 15861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1587608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1588eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 15891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 159039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 159155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 15927532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1593014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1594014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 15951fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 15961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 15977c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 15987c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1599b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1600b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 16017c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1602ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1603ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1604e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 1605e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName)) { 1606c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1607c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1608c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 16099ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1610c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1611ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 161255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1613d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 161439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 161539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 161639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 161739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 16181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1619eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 162039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 162125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1622c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 162339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 162439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 162539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 162639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1627059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 16289ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 162939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 163039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1631d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 16326ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 16339ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 16341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16356ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 16360576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, IsNewScope); 16379ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1638eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1639eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1640eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 164139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 164283a22ecbf52c06b4ee364f3fadcdb0abaf2dabf6Richard Smith/// true if there was an error that could not be recovered from. 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 164455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 164555a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1646495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 16474e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 16486ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 16493b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 165042d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) || 165142d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie Tok.is(tok::kw_decltype)) && "Cannot be a type or scope token!"); 1652eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 16534bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1654b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 16559ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1656edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 16579ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1658eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 16590576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, true); 16609ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1661eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 16626c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1663fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieubool Parser::isTokenEqualOrEqualTypo() { 1664fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu tok::TokenKind Kind = Tok.getKind(); 1665fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu switch (Kind) { 1666fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu default: 1667d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu return false; 1668fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::ampequal: // &= 1669fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::starequal: // *= 1670fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::plusequal: // += 1671fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::minusequal: // -= 1672fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::exclaimequal: // != 1673fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::slashequal: // /= 1674fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::percentequal: // %= 1675fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lessequal: // <= 1676fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lesslessequal: // <<= 1677fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greaterequal: // >= 1678fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greatergreaterequal: // >>= 1679fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::caretequal: // ^= 1680fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::pipeequal: // |= 1681fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equalequal: // == 1682fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu Diag(Tok, diag::err_invalid_token_after_declarator_suggest_equal) 1683fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << getTokenSimpleSpelling(Kind) 1684fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), "="); 1685fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equal: 1686fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu return true; 1687fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu } 1688a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1689a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 16907d100872341f233c81e1d7b72b40457e62c36862Argyrios KyrtzidisSourceLocation Parser::handleUnexpectedCodeCompletionToken() { 16917d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis assert(Tok.is(tok::code_completion)); 16927d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis PrevTokLocation = Tok.getLocation(); 16937d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 169423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1695dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1696f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 16977d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 16987d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1699dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1700dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1701dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1702f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 17037d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17047d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1705dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1706dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1707dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1708f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 17097d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17107d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1711dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1712dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 17136c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 17146c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 17156c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 17166c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 17176c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 17186c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1719f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1720f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1721f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1722f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1723f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1724f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1725f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1726f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1727f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1728f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 17291fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 17301fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1731f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1732f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1733f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1734f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1735f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1736f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1737f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1738f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1739f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1740f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1741f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1742f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 17431fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 174455817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 174555817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 174655817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 174755817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1748f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17493896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregorbool Parser::ParseMicrosoftIfExistsCondition(IfExistsCondition& Result) { 1750f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 1751f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 17523896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.IsIfExists = Tok.is(tok::kw___if_exists); 17533896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.KeywordLoc = ConsumeToken(); 1754f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17554a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 17564a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 17573896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Diag(Tok, diag::err_expected_lparen_after) 17583896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor << (Result.IsIfExists? "__if_exists" : "__if_not_exists"); 1759f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1760f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1761f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1762f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 1763efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(Result.SS, ParsedType(), 1764efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false); 1765f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1766f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 17673896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Result.SS.isInvalid()) { 17683896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1769f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1770f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1771f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1772e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // Parse the unqualified-id. 1773e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; // FIXME: parsed, but unused. 1774e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(Result.SS, false, true, true, ParsedType(), 1775e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, Result.Name)) { 17763896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1777f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1778f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1779f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17803896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (T.consumeClose()) 1781f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 17823896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1783f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 178465019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor switch (Actions.CheckMicrosoftIfExistsSymbol(getCurScope(), Result.KeywordLoc, 178565019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor Result.IsIfExists, Result.SS, 17863896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Name)) { 17873896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Exists: 17883896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = Result.IsIfExists ? IEB_Parse : IEB_Skip; 17893896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 1790f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17913896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_DoesNotExist: 17923896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = !Result.IsIfExists ? IEB_Parse : IEB_Skip; 17933896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 17943896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 17953896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Dependent: 17963896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = IEB_Dependent; 17973896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 179865019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor 179965019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor case Sema::IER_Error: 180065019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor return true; 18013896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 1802f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1803f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 1804f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1805f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1806563a645de82231a55e221fe655b7188bf8369662Francois Pichetvoid Parser::ParseMicrosoftIfExistsExternalDeclaration() { 18073896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor IfExistsCondition Result; 1808f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 1809f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1810f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18113896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor BalancedDelimiterTracker Braces(*this, tok::l_brace); 18123896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Braces.consumeOpen()) { 1813f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lbrace); 1814f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1815f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1816f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18173896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor switch (Result.Behavior) { 18183896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Parse: 18193896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse declarations below. 18203896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 18213896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18223896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Dependent: 18233896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor llvm_unreachable("Cannot have a dependent external declaration"); 18243896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18253896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Skip: 18263896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.skipToEnd(); 1827f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1828f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1829f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18303896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse the declarations. 18313896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { 1832f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 1833f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseCXX0XAttributes(attrs); 1834f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 1835f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 1836f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 1837f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 18383896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 18393896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.consumeClose(); 1840f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 18416aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 18425948ae1021122164b22f74353bb7fe325a64f616Douglas GregorParser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) { 184332ad2ee2618745ce3da51c2ae066ed5f21157c07Ted Kremenek assert(Tok.isObjCAtKeyword(tok::objc___experimental_modules_import) && 184465030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor "Improper start to module import"); 18456aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ImportLoc = ConsumeToken(); 18466aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 18473d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor llvm::SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path; 18483d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18493d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Parse the module path. 18503d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor do { 18513d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (!Tok.is(tok::identifier)) { 1852c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor if (Tok.is(tok::code_completion)) { 1853c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor Actions.CodeCompleteModuleImport(ImportLoc, Path); 1854c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor ConsumeCodeCompletionToken(); 1855c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor SkipUntil(tok::semi); 1856c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor return DeclGroupPtrTy(); 1857c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor } 1858c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor 18593d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Diag(Tok, diag::err_module_expected_ident); 18603d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor SkipUntil(tok::semi); 18613d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor return DeclGroupPtrTy(); 18623d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 18633d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18643d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Record this part of the module path. 18653d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Path.push_back(std::make_pair(Tok.getIdentifierInfo(), Tok.getLocation())); 18663d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 18673d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18683d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (Tok.is(tok::period)) { 18693d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 18703d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor continue; 18713d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 18723d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18733d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor break; 18743d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } while (true); 18756aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 18765948ae1021122164b22f74353bb7fe325a64f616Douglas Gregor DeclResult Import = Actions.ActOnModuleImport(AtLoc, ImportLoc, Path); 18776aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor ExpectAndConsumeSemi(diag::err_module_expected_semi); 18786aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (Import.isInvalid()) 18796aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 18806aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 18816aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return Actions.ConvertDeclToDeclGroup(Import.get()); 18826aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor} 18834a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1884c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseOverflow() { 1885d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, diag::err_parser_impl_limit_overflow); 1886d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.SkipUntil(tok::eof); 1887d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 18884a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 18894a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1890c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, 18914a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor const char *Msg, 18924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor tok::TokenKind SkipToToc ) { 18934a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.Tok.getLocation(); 1894d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.ExpectAndConsume(Kind, DiagID, Msg, SkipToToc)) 1895d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 1896d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1897d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (getDepth() < MaxDepth) 1898d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return false; 1899d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1900d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return diagnoseOverflow(); 19014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 19024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1903c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseMissingClose() { 1904d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor assert(!P.Tok.is(Close) && "Should have consumed closing delimiter"); 1905d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1906d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor const char *LHSName = "unknown"; 1907b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie diag::kind DID; 1908d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor switch (Close) { 1909b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie default: llvm_unreachable("Unexpected balanced token"); 1910d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; 1911d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; 1912d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; 19134a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 1914d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, DID); 1915d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(LOpen, diag::note_matching) << LHSName; 1916d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.SkipUntil(Close)) 1917d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor LClose = P.Tok.getLocation(); 19184a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 19194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 19203896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1921c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorvoid BalancedDelimiterTracker::skipToEnd() { 19223896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor P.SkipUntil(Close, false); 19233896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor} 1924