Parser.cpp revision e4246a633b13197634225971b25df0cbdcec0c5d
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 26f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallParser::Parser(Preprocessor &pp, Sema &actions) 27614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 280fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 290fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor InMessageExpression(false), TemplateParameterDepth(0) { 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 3123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 329e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 34d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ObjCImpDecl = 0; 35fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 36fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 37fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 38cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(new PragmaAlignHandler(actions)); 39cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.AddPragmaHandler(AlignHandler.get()); 40cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar 41aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler(actions)); 42aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); 43aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman 449b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis OptionsHandler.reset(new PragmaOptionsHandler(actions)); 459b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(OptionsHandler.get()); 469b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 479b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PackHandler.reset(new PragmaPackHandler(actions)); 489b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(PackHandler.get()); 4962c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian 5062c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(new PragmaMSStructHandler(actions)); 5162c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.AddPragmaHandler(MSStructHandler.get()); 529b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 539b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis UnusedHandler.reset(new PragmaUnusedHandler(actions, *this)); 549b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(UnusedHandler.get()); 559b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 569b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis WeakHandler.reset(new PragmaWeakHandler(actions)); 579b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(WeakHandler.get()); 58321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne 59321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(new PragmaFPContractHandler(actions, *this)); 60321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.AddPragmaHandler("STDC", FPContractHandler.get()); 61f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 62f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne if (getLang().OpenCL) { 63f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset( 64f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne new PragmaOpenCLExtensionHandler(actions, *this)); 65f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 66f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 67f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); 68f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 69f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 70f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 730102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// If a crash happens while the parser is active, print out a line indicating 740102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// what the current token is. 750102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattnervoid PrettyStackTraceParserEntry::print(llvm::raw_ostream &OS) const { 760102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &Tok = P.getCurToken(); 77ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.is(tok::eof)) { 780102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner OS << "<eof> parser at end of file\n"; 790102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner return; 800102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner } 811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.getLocation().isInvalid()) { 83ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner OS << "<unknown> parser at unknown location\n"; 84ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner return; 85ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner } 861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 870102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Preprocessor &PP = P.getPreprocessor(); 880102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Tok.getLocation().print(OS, PP.getSourceManager()); 899fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar if (Tok.isAnnotation()) 909fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": at annotation token \n"; 919fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar else 929fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": current parser token '" << PP.getSpelling(Tok) << "'\n"; 93f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor} 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 950102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 963cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 9733e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 981ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 991ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 1003cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 1011ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1044b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 1054b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 1064b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 1074b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 1084b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The kind of diagnostic to emit. 1094b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 1104b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 1114b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 112b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 113b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 1144b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 1154b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 1164b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 1174b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 1184b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 1191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 121849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 122849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1234b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1244b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// MatchRHSPunctuation - For punctuation with a LHS and RHS (e.g. '['/']'), 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// this helper function matches and consumes the specified RHS token if 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// present. If not present, it emits the specified diagnostic indicating 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// that the parser failed to match the RHS of the token at LHSLoc. LHSName 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// should be the name of the unmatched LHS token. 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerSourceLocation Parser::MatchRHSPunctuation(tok::TokenKind RHSTok, 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LHSLoc) { 132a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 133000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(RHSTok)) 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeAnyToken(); 135a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation R = Tok.getLocation(); 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *LHSName = "unknown"; 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::kind DID = diag::err_parse_error; 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (RHSTok) { 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: break; 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::greater: LHSName = "<"; DID = diag::err_expected_greater; break; 145bf36e25224b959595af84337339103ebc542ff8cPeter Collingbourne case tok::greatergreatergreater: 146bf36e25224b959595af84337339103ebc542ff8cPeter Collingbourne LHSName = "<<<"; DID = diag::err_expected_ggg; break; 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, DID); 14928eb7e992b9a266abb300da25b6d3c1557cec361Chris Lattner Diag(LHSLoc, diag::note_matching) << LHSName; 1509fc1873a3da0af8ef91e4f1927f3540f9af2038fChris Lattner SkipUntil(RHSTok); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return R; 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 154837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 155837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 156837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall case tok::semi: return Tok.is(tok::colon); // : for ; 157837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 158837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 159837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 160837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// input. If so, it is consumed and false is returned. 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If the input is malformed, this emits the specified diagnostic. Next, if 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// returned. 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Msg, tok::TokenKind SkipToTok) { 169dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 173a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 174837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 175837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 176837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 177837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall Diag(Loc, DiagID) 178837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << Msg 179837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << FixItHint::CreateReplacement(SourceRange(Loc), 180837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall getTokenSimpleSpelling(ExpectedTok)); 181837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall ConsumeAnyToken(); 182837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 183837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 184837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 185837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 186837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1874b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor const char *Spelling = 0; 188b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EndLoc.isValid() && 190b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { 1914b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // Show what code to insert to fix this problem. 1921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(EndLoc, DiagID) 1934b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor << Msg 194849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, Spelling); 1954b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } else 1964b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Tok, DiagID) << Msg; 1974b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (SkipToTok != tok::unknown) 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(SkipToTok); 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2039ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 2049ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { 2059ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); 2069ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2079ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2089ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2099ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 2109ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 2119ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 2129ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 2139ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 2149ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 2159ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 2169ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2179ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2189ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2199ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 2209ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 2219ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 227012cf464254804279efa84e21b4b493dde76c5f1Chris Lattner/// it (unless DontConsume is true). Because we cannot guarantee that the 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 231a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 233a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::SkipUntil(const tok::TokenKind *Toks, unsigned NumToks, 2353437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis bool StopAtSemi, bool DontConsume, 2363437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis bool StopAtCodeCompletion) { 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumToks; ++i) { 243000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DontConsume) { 2455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 252a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 257dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 258dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2593437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis if (!StopAtCodeCompletion) 2603437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis ConsumeToken(); 261dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 262dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2663437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2713437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2763437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 278a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 2855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 299a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 30455edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 30555edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian case tok::at: 30655edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian return false; 30755edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (StopAtSemi) 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 318a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 3279e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 3289e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 32923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 33023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 3329c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 3335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 33823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 34090ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 34190ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 34223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (!getCurScope()->decl_empty()) 34323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 344a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 34523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 34623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 347a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3489e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 3499e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3519e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 36323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 36423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 36523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 3679e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 3689e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 369fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 3708387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Free LateParsedTemplatedFunction nodes. 3718387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet for (LateParsedTemplateMapT::iterator it = LateParsedTemplateMap.begin(); 3728387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet it != LateParsedTemplateMap.end(); ++it) 3738387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet delete it->second; 3748387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 375fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Remove the pragma handlers we installed. 376cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.RemovePragmaHandler(AlignHandler.get()); 377cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(); 378aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.RemovePragmaHandler("GCC", GCCVisibilityHandler.get()); 379aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(); 3809b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(OptionsHandler.get()); 381861800c676004eabed5927f0552620d06c80a40aDaniel Dunbar OptionsHandler.reset(); 3829b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(PackHandler.get()); 3834726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek PackHandler.reset(); 38462c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.RemovePragmaHandler(MSStructHandler.get()); 38562c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(); 3869b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(UnusedHandler.get()); 3874726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek UnusedHandler.reset(); 3889b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(WeakHandler.get()); 3899991479ad5dde617168cc1e4b18425cdbbfd9fa9Eli Friedman WeakHandler.reset(); 390f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 391f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne if (getLang().OpenCL) { 392f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 393f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset(); 394f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); 395f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 396f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 397321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.RemovePragmaHandler("STDC", FPContractHandler.get()); 398321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(); 399f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 40531e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 40623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "A scope is already active?"); 40731e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 408c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 409c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 410c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor // Prime the lexer look-ahead. 411c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor ConsumeToken(); 412a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 413000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::eof) && 414f72617544287acf0281c3b1a733bcb22a02e6ca4Chris Lattner !getLang().CPlusPlus) // Empty source file is an extension in C 4155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::ext_empty_source_file); 416a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 41734870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 418a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 41934870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner if (getLang().ObjC1) { 420a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 421a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 422a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 423a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 424a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 425a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 42634870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 427662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 4287eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_final = 0; 4297eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_override = 0; 4301f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 431662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 43282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 43382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson if (getLang().AltiVec) { 43482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 43582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 43682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4370a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4380a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_introduced = 0; 4390a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_deprecated = 0; 4400a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_obsoleted = 0; 441b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Ident_unavailable = 0; 44228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 44328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = Ident__exception_info = Ident__abnormal_termination = 0; 44428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = Ident___exception_info = Ident___abnormal_termination = 0; 44528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = Ident_GetExceptionInfo = Ident_AbnormalTermination = 0; 44628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 44728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley if(getLang().Borland) { 44828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 44928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 45028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 45128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 45228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 45328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 45428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 45528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 45628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 45728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 45828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 45928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 46028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 46128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 46228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 46328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 46428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 46528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 46628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 46728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 4685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 472682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 473b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 474b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis while (Tok.is(tok::annot_pragma_unused)) 475b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 476b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 477682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Result = DeclGroupPtrTy(); 4789299f3fa85796613cc787a2062c9562d07c8613eChris Lattner if (Tok.is(tok::eof)) { 4798387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 4808387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (getLang().DelayedTemplateParsing) 4818387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.SetLateTemplateParser(LateTemplateParserCallback, this); 4828387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 4839299f3fa85796613cc787a2062c9562d07c8613eChris Lattner Actions.ActOnEndOfTranslationUnit(); 4849299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 4859299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 486a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 4870b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 4887f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseCXX0XAttributes(attrs); 4897f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 490334d47e92e9f241576fdeb7477b69a03136ba854Francois Pichet 4917f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 4925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 4935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTranslationUnit: 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// translation-unit: [C99 6.9] 497a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// external-declaration 498a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// translation-unit external-declaration 4995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseTranslationUnit() { 5008935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Initialize(); 501a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 502682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy Res; 50389307ffaf8acf4d6fdffd72b607ca4fbcfdffc9dSteve Naroff while (!ParseTopLevelDecl(Res)) 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /*parse them all*/; 5051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 50606f548596beef4c0a227a45cba996497f99566c0Chris Lattner ExitScope(); 50723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "Scope imbalance!"); 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 51190b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 512c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 513c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 514c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 515a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 517c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 5195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 5205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 524c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 5255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 528a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration: 529a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 530a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 53145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 5327f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 5337f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 5347f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 53536d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 53636d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis 537d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *SingleDecl = 0; 5385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 540a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor if (!getLang().CPlusPlus0x) 541a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor Diag(Tok, diag::ext_top_level_semi) 542849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 5431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Invoke action for top-level semicolon. 546682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 54790b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 54890b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 54990b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 550682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 55190b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 55290b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 553682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 554c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 555c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 556c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 55739146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 5587f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 559c3018153a11afe91849748a93d920040a571b76cChris Lattner } 560dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 5617f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 562bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 56321e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 56421e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 56521e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 566a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5673f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 5683f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 569dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 570682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 571682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 57221e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 573682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 574dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 576682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // @ is not a legal token unless objc is enabled, no need to check for ObjC. 577682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner /// FIXME: ParseObjCAtDirectives should return a DeclGroup for things like 578682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner /// @class foo, bar; 579682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCAtDirectives(); 580682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 583682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (!getLang().ObjC1) { 584682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 585682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 586682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 587682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 588682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 589682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 590791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 59123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 592f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall ObjCImpDecl? Sema::PCC_ObjCImplementation 593f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 594dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor ConsumeCodeCompletionToken(); 5957f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 596f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 5978f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 599adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 600adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 601511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 602c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 603bae35118fc5cea2da08567dbb9763af7f906dae2Chris Lattner // A function definition cannot start with a these keywords. 60497144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 60597144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 606c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 6077f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 60897144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 609d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 6107306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 6117306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 6127306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 6137306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (getLang().CPlusPlus && NextToken().is(tok::kw_template)) { 6147306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 6157306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 616d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 617c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 6187f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6197306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 6207306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 6217306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 6227306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 6237306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (getLang().CPlusPlus) { 6247306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 6257306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 6267306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 6277306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 6287306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 6297306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 6307f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6317306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 6327306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 6337306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 6347306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 6357306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 6367306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 6377306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 6387306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 6397306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 6407f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6417306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 642d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 643d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 644d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 64545f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 64645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor if (getLang().CPlusPlus && NextToken().is(tok::kw_template)) { 64745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 64845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 64945f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 65045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 65145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 65245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor ParseExplicitInstantiation(ExternLoc, TemplateLoc, DeclEnd)); 65345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 65445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // FIXME: Detect C++ linkage specifications here? 655d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 6561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 657f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 658f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 659f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParseMicrosoftIfExistsDeclaration(); 660f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 661f986038beed360c031de8654cfba43a5d3184605Francois Pichet 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 663d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 6657f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (DS) { 6667f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DS->takeAttributesFrom(attrs); 6677f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(*DS); 6687f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } else { 6697f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(attrs); 6707f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 673682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 674682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 675682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6781426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 6791426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 680e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 681e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 682e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (getLang().CPlusPlus && Tok.is(tok::equal)) { 683e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 684e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 685e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 686e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 687e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 6881426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 6891426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 6901426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 6911426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 6921426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 6931426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor (getLang().CPlusPlus && 6941426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 6951426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 6961426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 6971426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 6981426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 699004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 700075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 7015d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 7025d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 7035d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 704004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 705004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (!getLang().CPlusPlus && 706075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 707004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 708e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 709e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (getLang().CPlusPlus && Tok.is(tok::equal)) { 710e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 711e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 712e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 713004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 7145d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 7155d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 7161426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7171426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 7185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 7195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 720c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 721c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 7221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 7235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 725a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 726a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 727a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 728a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 730697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 731697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 734682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 7353acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::ParseDeclarationOrFunctionDefinition(ParsingDeclSpec &DS, 736bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt AccessSpecifier AS) { 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 7380efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 739a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 742000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 744d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 74554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 746682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 748a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 749246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 750246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 751246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 752000732226610650837478cba97843d19b75f648eChris Lattner if (getLang().ObjC2 && Tok.is(tok::at)) { 753dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 7541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 755246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 756246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 757cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 758682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 759cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 760d8ac05753dc4506224d445ff98399c01da3136e5John McCall 76154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 76254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 7630de2ae28c603322f05e2d9200c7d457c8b928983Fariborz Jahanian const char *PrevSpec = 0; 764fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 765fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) 766fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 7671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 768d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = 0; 769246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 770682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner TheDecl = ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 771682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner else 772682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner TheDecl = ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes()); 773682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 774dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 775a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 776c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 777c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 778c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 7793c6f6a7a1bb9969112617a26d2333bab2f6efd65Chris Lattner if (Tok.is(tok::string_literal) && getLang().CPlusPlus && 780c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 781682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 782d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 783682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 784682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 785c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 786d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7893acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 7907f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseDeclarationOrFunctionDefinition(ParsedAttributes &attrs, 7913acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 7923acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian ParsingDeclSpec DS(*this); 7937f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DS.takeAttributesFrom(attrs); 7947f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(DS, AS); 7953acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 7963acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 7975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 801a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 802a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 803a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 804a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 8057ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 80623c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 80723c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 8087ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 809d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 8105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 811d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 812075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const ParsedTemplateInfo &TemplateInfo) { 81328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley // Poison the SEH identifiers so they are flagged as illegal in function bodies 81428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 815075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 816a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 817a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 818a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 819a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 8202a327d11a07dfbdf20910cebbae38910eda111fdChris Lattner if (getLang().ImplicitInt && D.getDeclSpec().isEmpty()) { 821a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 822fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 82331c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 82431c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 825fec54013fcd0eb72642741584ca04c1bc292bef8John McCall PrevSpec, DiagID); 826ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 827a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 828a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 832004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 835e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Tok.is(tok::equal)) { 836e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt assert(getLang().CPlusPlus && "Only C++ function definitions have '='"); 837e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt ConsumeToken(); 838e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 839e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Decl *Decl = 0; 840e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Here we complete the declaration as if it were normal 841e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt switch (TemplateInfo.Kind) { 842e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt case ParsedTemplateInfo::NonTemplate: 843e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Decl = Actions.ActOnDeclarator(getCurScope(), D, true); 844e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt break; 845e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 846e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt case ParsedTemplateInfo::Template: 847e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt case ParsedTemplateInfo::ExplicitSpecialization: 848e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Decl = Actions.ActOnTemplateDeclarator(getCurScope(), 849e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt MultiTemplateParamsArg(Actions, 850e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt TemplateInfo.TemplateParams->data(), 851e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt TemplateInfo.TemplateParams->size()), 852e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt D); 853e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt break; 854e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 855e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt case ParsedTemplateInfo::ExplicitInstantiation: { 856e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt DeclResult Result 857e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt = Actions.ActOnExplicitInstantiation(getCurScope(), 858e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt TemplateInfo.ExternLoc, 859e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt TemplateInfo.TemplateLoc, 860e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt D); 861e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Result.isInvalid()) { 862e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt SkipUntil(tok::semi); 863e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return 0; 864e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 865e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 866e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Decl = Result.get(); 867e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt break; 868e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 869e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 870e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 871e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt bool Delete = false; 872e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt SourceLocation KWLoc; 873e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Tok.is(tok::kw_delete)) { 874e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (!getLang().CPlusPlus0x) 875e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Diag(Tok, diag::warn_deleted_function_accepted_as_extension); 876e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 877e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt KWLoc = ConsumeToken(); 878e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Actions.SetDeclDeleted(Decl, KWLoc); 879e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Delete = true; 880e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } else if (Tok.is(tok::kw_default)) { 881e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (!getLang().CPlusPlus0x) 882e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Diag(Tok, diag::warn_defaulted_function_accepted_as_extension); 883e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 884e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt KWLoc = ConsumeToken(); 885e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Actions.SetDeclDefaulted(Decl, KWLoc); 886e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } else { 887e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 888e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 889e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 890e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (Tok.is(tok::comma)) { 891e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 892e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt << Delete; 893e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt SkipUntil(tok::semi); 894e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } else { 895e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 896e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt Delete ? "delete" : "default", tok::semi); 897e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 898e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 899e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return Decl; 900e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 901e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 9027ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 9037ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 904758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 905758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor (!getLang().CPlusPlus || 906758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try)))) { 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::l_brace, true, true); 911a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 913000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 914d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 916a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9178387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 9188387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 9198387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (getLang().DelayedTemplateParsing && 9208387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind == ParsedTemplateInfo::Template) { 9218387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet MultiTemplateParamsArg TemplateParameterLists(Actions, 9228387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.TemplateParams->data(), 9238387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.TemplateParams->size()); 9248387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9258387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 9268387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 9278387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9288387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 9298387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet move(TemplateParameterLists), 9308387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet /*IsFunctionDefinition=*/true); 9318387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 9328387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 9338387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9348387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (DP) { 9358387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplatedFunction *LPT = new LateParsedTemplatedFunction(this, DP); 9368387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9378387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FnD = 0; 9388387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(DP)) 9398387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = FunTmpl->getTemplatedDecl(); 9408387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 9418387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = cast<FunctionDecl>(DP); 942d4a0caf78e7c18e7aca65fbfd799a6c024ff51fbFrancois Pichet Actions.CheckForFunctionRedefinition(FnD); 9438387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9448387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplateMap[FnD] = LPT; 9458387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.MarkAsLateParsedTemplate(FnD); 9468387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(LPT->Toks); 9478387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } else { 9488387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet CachedTokens Toks; 9498387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(Toks); 9508387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 9518387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 9528387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 9538387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9548387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 955b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 9568935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 957a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 958b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 959b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 960d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 96123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 962f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall MultiTemplateParamsArg(Actions, 96352591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->data(), 96452591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->size()), 96552591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor D) 96623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 967a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 96854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 96954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 97054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 97154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 97254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 97354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 97454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 975d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 976c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 977d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 9787ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 9797ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 980d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 9817ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 982d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 983d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 984d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 985c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 9869ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Actions.ActOnFinishFunctionBody(Res, 0); 987d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 988d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 989d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 990393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 9917ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 992c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 9935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 9975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 9985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 999075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 10005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 100104421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 100204421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 10033218c4bb3b5d7250f12420de6db7ef3e3f805a75Douglas Gregor ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope|Scope::DeclScope); 100404421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 1008a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 10100b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1012a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1018000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1023a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.isThreadSpecified()) { 10335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getThreadSpecLoc(), 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1037a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 10457f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 1046a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 1048d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 104923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 10502bd42fadafddc8acf744b57a970bdc96a077c617Steve Naroff 1051a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 10525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 10565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 10575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (i == FTI.NumArgs) { 10611ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 10626898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1065a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 106804421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner if (FTI.ArgInfo[i].Param) { 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 10701ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 10716898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 107304421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner FTI.ArgInfo[i].Param = Param; 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 10815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 1082000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 1084a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 1087a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.clear(); 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1092a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1093000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_parse_error); 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip to end of block or statement 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::semi, true); 1099000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1103a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 110523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 111560d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isTokenStringLiteral()) { 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_string_literal); 111861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1120a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 112160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Res(ParseStringLiteralExpression()); 1122effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl if (Res.isInvalid()) return move(Res); 1123a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Diagnose: wide string literal in 'asm' 1125a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1126effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl return move(Res); 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 113460d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1135000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1136dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1137a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11387a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1139841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1140841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1141841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1142841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1143841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1144849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 11457a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 11467a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 11477a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 1148000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_paren)) { 11491ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 115061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1152a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1153ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeParen(); 1154a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 115560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1156a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1157ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Result.isInvalid()) { 1158ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SkipUntil(tok::r_paren, true, true); 1159ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 1160ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Tok.getLocation(); 1161ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl ConsumeAnyToken(); 1162ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } else { 1163ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = MatchRHSPunctuation(tok::r_paren, Loc); 1164ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 1165ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 1166ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1167a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1168effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl return move(Result); 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1171eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1172eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1173eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1174eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1175eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1176eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1177eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1178eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 117944802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 118044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 118144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 118244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 118344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1184b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 118544802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 118644802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 118744802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1188a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 11899ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 11901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 119155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 119255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1193495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext) { 11941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 1195ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope)) && 11967452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Cannot be a type or scope token!"); 11971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1198d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 1199d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1200d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1201d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1202d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 12031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 12041734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1205d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1206d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 12074147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), false, 12084147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 0, /*IsTypename*/true)) 12099ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 12109ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 1211a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet if (getLang().Microsoft) 1212a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet Diag(Tok.getLocation(), diag::warn_expected_qualified_after_typename); 1213a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet else 1214a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 12159ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1216d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1217d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1218d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1219d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1220d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 122123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 12221a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1223d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 12241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 12251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateIdAnnotation *TemplateId 12261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 12271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (TemplateId->Kind == TNK_Function_template) { 12281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 12291734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 12309ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 12311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1232d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1233a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, 1234a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->getTemplateArgs(), 1235a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 1236a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor 1237a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 1238a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor /*FIXME:*/SourceLocation(), 1239a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1240a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1241a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 1242a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateArgsPtr, 1243a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 1244aa2187de137e5b809dcbbe14f3b61ae907a3d8aaDouglas Gregor TemplateId->Destroy(); 12451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 12461734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 12471734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 12489ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 12491734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 12501734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 125139d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 12521734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1253b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 125439d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 12551734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 12561734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 12579ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1258d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1259d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1260ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 1261ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall bool wasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1262ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1263eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 12644bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis if (getLang().CPlusPlus) 1265b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 12669ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1267eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1268eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 1269608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1270b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1271b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 12721e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 12739e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 12749e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 12759e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor /*NonTrivialTypeSourceInfo*/true)) { 1276608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1277608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1278b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1279b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1280608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1281608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1282608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 12831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1284608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1285608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1286608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 12879ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 12881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 128939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 129039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (!getLang().CPlusPlus) { 1291608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1292608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 12931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1294608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1295eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 12961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 129739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 129855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 12997532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1300014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1301014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 13021fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 13031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 13047c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 13057c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1306b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1307b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 13087c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1309ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1310ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1311059101f922de6eb765601459925f4c8914420b23Douglas Gregor if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateName)) { 1312c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1313c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1314c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 13159ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1316c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1317ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 131855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1319d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 132039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 132139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 132239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 132339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 13241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1325eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 132639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 13271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateIdAnnotation *TemplateId 132839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 1329c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 133039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 133139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 133239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 133339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1334059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 13359ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 133639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 133739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1338d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 13396ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 13409ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 13411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13426ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 13436ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 13446ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 13456ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 13466ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 13476ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 13486ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 13496ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1350c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 13516ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 13526ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 1353ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // In case the tokens were cached, have Preprocessor replace them 1354ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // with the annotation token. We don't need to do this if we've 1355ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // just reverted back to the state we were in before being called. 1356ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall if (!wasScopeAnnotation) 1357ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall PP.AnnotateCachedTokens(Tok); 13589ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1359eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1360eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1361eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 136239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 1363c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner/// true if the token was annotated or there was an error that could not be 1364c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner/// recovered from. 13651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 136655a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 136755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1368495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 13694bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 13706ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 13713b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 13723b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)))&& 13737452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Cannot be a type or scope token!"); 1374eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 13754bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1376b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 13779ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1378edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 13799ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1380eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 13816ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 13826ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 13836ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 13846ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 13856ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 13866ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 13876ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1388c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 13896ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 13906ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 13916ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // In case the tokens were cached, have Preprocessor replace them with the 13926ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // annotation token. 13936ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.AnnotateCachedTokens(Tok); 13949ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1395eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 13966c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1397a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidisbool Parser::isTokenEqualOrMistypedEqualEqual(unsigned DiagID) { 1398a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis if (Tok.is(tok::equalequal)) { 1399a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis // We have '==' in a context that we would expect a '='. 1400a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis // The user probably made a typo, intending to type '='. Emit diagnostic, 1401a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis // fixit hint to turn '==' -> '=' and continue as if the user typed '='. 1402a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis Diag(Tok, DiagID) 1403a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), 1404a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis getTokenSimpleSpelling(tok::equal)); 1405a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis return true; 1406a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis } 1407a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 1408a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis return Tok.is(tok::equal); 1409a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1410a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 1411dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregorvoid Parser::CodeCompletionRecovery() { 141223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1413dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1414f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 1415dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return; 1416dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1417dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1418dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1419f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 1420dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return; 1421dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1422dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1423dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1424f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 1425dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1426dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 14276c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 14286c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 14296c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 14306c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 14316c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 14326c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1433f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1434f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1435f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1436f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1437f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1438f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1439f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1440f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1441f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1442f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 14431fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 14441fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1445f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1446f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1447f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1448f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1449f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1450f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1451f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1452f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1453f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1454f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1455f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1456f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 14571fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 145855817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 145955817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 146055817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 146155817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1462f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1463f986038beed360c031de8654cfba43a5d3184605Francois Pichetbool Parser::ParseMicrosoftIfExistsCondition(bool& Result) { 1464f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 1465f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 1466f986038beed360c031de8654cfba43a5d3184605Francois Pichet Token Condition = Tok; 1467f986038beed360c031de8654cfba43a5d3184605Francois Pichet SourceLocation IfExistsLoc = ConsumeToken(); 1468f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1469f986038beed360c031de8654cfba43a5d3184605Francois Pichet SourceLocation LParenLoc = Tok.getLocation(); 1470f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Tok.isNot(tok::l_paren)) { 1471f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lparen_after) << IfExistsLoc; 1472f986038beed360c031de8654cfba43a5d3184605Francois Pichet SkipUntil(tok::semi); 1473f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1474f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1475f986038beed360c031de8654cfba43a5d3184605Francois Pichet ConsumeParen(); // eat the '('. 1476f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1477f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 1478f986038beed360c031de8654cfba43a5d3184605Francois Pichet CXXScopeSpec SS; 1479f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); 1480f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1481f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 1482f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (SS.isInvalid()) { 1483f986038beed360c031de8654cfba43a5d3184605Francois Pichet SkipUntil(tok::semi); 1484f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1485f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1486f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1487f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse the unqualified-id. 1488f986038beed360c031de8654cfba43a5d3184605Francois Pichet UnqualifiedId Name; 1489f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseUnqualifiedId(SS, false, true, true, ParsedType(), Name)) { 1490f986038beed360c031de8654cfba43a5d3184605Francois Pichet SkipUntil(tok::semi); 1491f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1492f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1493f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1494f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (MatchRHSPunctuation(tok::r_paren, LParenLoc).isInvalid()) 1495f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1496f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1497f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 1498f986038beed360c031de8654cfba43a5d3184605Francois Pichet bool Exist = Actions.CheckMicrosoftIfExistsSymbol(SS, Name); 1499f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1500f986038beed360c031de8654cfba43a5d3184605Francois Pichet Result = ((Condition.is(tok::kw___if_exists) && Exist) || 1501f986038beed360c031de8654cfba43a5d3184605Francois Pichet (Condition.is(tok::kw___if_not_exists) && !Exist)); 1502f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1503f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 1504f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1505f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1506f986038beed360c031de8654cfba43a5d3184605Francois Pichetvoid Parser::ParseMicrosoftIfExistsDeclaration() { 1507f986038beed360c031de8654cfba43a5d3184605Francois Pichet bool Result; 1508f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 1509f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1510f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1511f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Tok.isNot(tok::l_brace)) { 1512f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lbrace); 1513f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1514f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1515f986038beed360c031de8654cfba43a5d3184605Francois Pichet ConsumeBrace(); 1516f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1517f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Condition is false skip all inside the {}. 1518f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (!Result) { 1519f986038beed360c031de8654cfba43a5d3184605Francois Pichet SkipUntil(tok::r_brace, false); 1520f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1521f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1522f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1523f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Condition is true, parse the declaration. 1524f986038beed360c031de8654cfba43a5d3184605Francois Pichet while (Tok.isNot(tok::r_brace)) { 1525f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 1526f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseCXX0XAttributes(attrs); 1527f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 1528f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 1529f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 1530f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 1531f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1532f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1533f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Tok.isNot(tok::r_brace)) { 1534f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_rbrace); 1535f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1536f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1537f986038beed360c031de8654cfba43a5d3184605Francois Pichet ConsumeBrace(); 1538f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1539