Parser.cpp revision 4147d307086cf024a40a080e2bf379e9725f6f41
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" 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallParser::Parser(Preprocessor &pp, Sema &actions) 25614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 260fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 270fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor InMessageExpression(false), TemplateParameterDepth(0) { 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 2923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 309e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 32d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ObjCImpDecl = 0; 33fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 34fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 35fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 36cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(new PragmaAlignHandler(actions)); 37cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.AddPragmaHandler(AlignHandler.get()); 38cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar 39aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler(actions)); 40aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); 41aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman 429b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis OptionsHandler.reset(new PragmaOptionsHandler(actions)); 439b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(OptionsHandler.get()); 449b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 459b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PackHandler.reset(new PragmaPackHandler(actions)); 469b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(PackHandler.get()); 479b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 489b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis UnusedHandler.reset(new PragmaUnusedHandler(actions, *this)); 499b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(UnusedHandler.get()); 509b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 519b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis WeakHandler.reset(new PragmaWeakHandler(actions)); 529b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(WeakHandler.get()); 53321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne 54321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(new PragmaFPContractHandler(actions, *this)); 55321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.AddPragmaHandler("STDC", FPContractHandler.get()); 56f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 57f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne if (getLang().OpenCL) { 58f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset( 59f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne new PragmaOpenCLExtensionHandler(actions, *this)); 60f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 61f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 62f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); 63f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 64f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 65f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 680102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// If a crash happens while the parser is active, print out a line indicating 690102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// what the current token is. 700102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattnervoid PrettyStackTraceParserEntry::print(llvm::raw_ostream &OS) const { 710102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &Tok = P.getCurToken(); 72ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.is(tok::eof)) { 730102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner OS << "<eof> parser at end of file\n"; 740102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner return; 750102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner } 761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 77ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.getLocation().isInvalid()) { 78ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner OS << "<unknown> parser at unknown location\n"; 79ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner return; 80ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner } 811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 820102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Preprocessor &PP = P.getPreprocessor(); 830102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Tok.getLocation().print(OS, PP.getSourceManager()); 849fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar if (Tok.isAnnotation()) 859fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": at annotation token \n"; 869fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar else 879fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": current parser token '" << PP.getSpelling(Tok) << "'\n"; 88f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor} 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 900102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 913cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 9233e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 931ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 941ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 953cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 961ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 994b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 1004b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 1014b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 1024b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 1034b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The kind of diagnostic to emit. 1044b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 1054b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 1064b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 107b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 108b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 1094b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 1104b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 1114b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 1124b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 1134b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 116849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 117849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1184b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1194b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// MatchRHSPunctuation - For punctuation with a LHS and RHS (e.g. '['/']'), 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// this helper function matches and consumes the specified RHS token if 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// present. If not present, it emits the specified diagnostic indicating 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// that the parser failed to match the RHS of the token at LHSLoc. LHSName 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// should be the name of the unmatched LHS token. 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerSourceLocation Parser::MatchRHSPunctuation(tok::TokenKind RHSTok, 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LHSLoc) { 127a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 128000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(RHSTok)) 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeAnyToken(); 130a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation R = Tok.getLocation(); 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *LHSName = "unknown"; 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::kind DID = diag::err_parse_error; 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (RHSTok) { 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: break; 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::greater: LHSName = "<"; DID = diag::err_expected_greater; break; 140bf36e25224b959595af84337339103ebc542ff8cPeter Collingbourne case tok::greatergreatergreater: 141bf36e25224b959595af84337339103ebc542ff8cPeter Collingbourne LHSName = "<<<"; DID = diag::err_expected_ggg; break; 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, DID); 14428eb7e992b9a266abb300da25b6d3c1557cec361Chris Lattner Diag(LHSLoc, diag::note_matching) << LHSName; 1459fc1873a3da0af8ef91e4f1927f3540f9af2038fChris Lattner SkipUntil(RHSTok); 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return R; 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 149837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 150837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 151837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall case tok::semi: return Tok.is(tok::colon); // : for ; 152837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 153837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 154837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 155837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// input. If so, it is consumed and false is returned. 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If the input is malformed, this emits the specified diagnostic. Next, if 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// returned. 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Msg, tok::TokenKind SkipToTok) { 164dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 168a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 169837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 170837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 171837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 172837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall Diag(Loc, DiagID) 173837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << Msg 174837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << FixItHint::CreateReplacement(SourceRange(Loc), 175837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall getTokenSimpleSpelling(ExpectedTok)); 176837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall ConsumeAnyToken(); 177837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 178837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 179837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 180837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 181837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1824b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor const char *Spelling = 0; 183b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EndLoc.isValid() && 185b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { 1864b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // Show what code to insert to fix this problem. 1871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(EndLoc, DiagID) 1884b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor << Msg 189849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, Spelling); 1904b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } else 1914b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Tok, DiagID) << Msg; 1924b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (SkipToTok != tok::unknown) 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(SkipToTok); 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1989ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 1999ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { 2009ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); 2019ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2029ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2039ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2049ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 2059ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 2069ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 2079ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 2089ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 2099ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 2109ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 2119ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2129ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2139ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2149ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 2159ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 2169ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 222012cf464254804279efa84e21b4b493dde76c5f1Chris Lattner/// it (unless DontConsume is true). Because we cannot guarantee that the 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 226a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 228a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::SkipUntil(const tok::TokenKind *Toks, unsigned NumToks, 2303437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis bool StopAtSemi, bool DontConsume, 2313437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis bool StopAtCodeCompletion) { 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumToks; ++i) { 238000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DontConsume) { 2405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 247a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 252dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 253dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2543437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis if (!StopAtCodeCompletion) 2553437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis ConsumeToken(); 256dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 257dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2613437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2663437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2713437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 273a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 2785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 2855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 294a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 29955edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 30055edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian case tok::at: 30155edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian return false; 30255edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (StopAtSemi) 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 313a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 3229e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 3239e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 32423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 32523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 3279c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 33323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 33590ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 33690ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 33723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (!getCurScope()->decl_empty()) 33823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 339a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 34023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 34123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 342a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3439e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 3449e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3469e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 3545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 35823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 35923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 36023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 3629e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 3639e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 364fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 365fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Remove the pragma handlers we installed. 366cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.RemovePragmaHandler(AlignHandler.get()); 367cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(); 368aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.RemovePragmaHandler("GCC", GCCVisibilityHandler.get()); 369aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(); 3709b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(OptionsHandler.get()); 371861800c676004eabed5927f0552620d06c80a40aDaniel Dunbar OptionsHandler.reset(); 3729b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(PackHandler.get()); 3734726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek PackHandler.reset(); 3749b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(UnusedHandler.get()); 3754726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek UnusedHandler.reset(); 3769b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(WeakHandler.get()); 3779991479ad5dde617168cc1e4b18425cdbbfd9fa9Eli Friedman WeakHandler.reset(); 378f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 379f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne if (getLang().OpenCL) { 380f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 381f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset(); 382f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); 383f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 384f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 385321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.RemovePragmaHandler("STDC", FPContractHandler.get()); 386321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(); 387f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 3885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 3915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 3925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 39331e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 39423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "A scope is already active?"); 39531e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 396c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 397c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 398c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor // Prime the lexer look-ahead. 399c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor ConsumeToken(); 400a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 401000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::eof) && 402f72617544287acf0281c3b1a733bcb22a02e6ca4Chris Lattner !getLang().CPlusPlus) // Empty source file is an extension in C 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::ext_empty_source_file); 404a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 40534870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 406a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 40734870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner if (getLang().ObjC1) { 408a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 409a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 410a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 411a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 412a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 413a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 41434870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 415662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 4167eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_final = 0; 4177eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_override = 0; 4181f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 419662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 42082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 42182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson if (getLang().AltiVec) { 42282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 42382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 42482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4250a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4260a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_introduced = 0; 4270a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_deprecated = 0; 4280a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_obsoleted = 0; 429b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Ident_unavailable = 0; 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 4335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 434682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 435b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 436b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis while (Tok.is(tok::annot_pragma_unused)) 437b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 438b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 439682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Result = DeclGroupPtrTy(); 4409299f3fa85796613cc787a2062c9562d07c8613eChris Lattner if (Tok.is(tok::eof)) { 4419299f3fa85796613cc787a2062c9562d07c8613eChris Lattner Actions.ActOnEndOfTranslationUnit(); 4429299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 4439299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 444a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 4450b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 4467f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseCXX0XAttributes(attrs); 4477f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 448334d47e92e9f241576fdeb7477b69a03136ba854Francois Pichet 4497f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 4505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTranslationUnit: 4545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// translation-unit: [C99 6.9] 455a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// external-declaration 456a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// translation-unit external-declaration 4575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseTranslationUnit() { 4588935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Initialize(); 459a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 460682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy Res; 46189307ffaf8acf4d6fdffd72b607ca4fbcfdffc9dSteve Naroff while (!ParseTopLevelDecl(Res)) 4625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /*parse them all*/; 4631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 46406f548596beef4c0a227a45cba996497f99566c0Chris Lattner ExitScope(); 46523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "Scope imbalance!"); 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 46990b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 470c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 471c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 472c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 473a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration 4745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 475c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 4765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 4775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 4785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 4795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 482c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 4855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 486a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration: 487a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 488a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 48945f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 4907f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 4917f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 4927f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 49336d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 49436d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis 495d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *SingleDecl = 0; 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 498a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor if (!getLang().CPlusPlus0x) 499a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor Diag(Tok, diag::ext_top_level_semi) 500849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 5011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Invoke action for top-level semicolon. 504682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 50590b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 50690b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 50790b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 508682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 50990b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 51090b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 511682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 512c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 513c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 514c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 51539146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 5167f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 517c3018153a11afe91849748a93d920040a571b76cChris Lattner } 518dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 5197f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 520bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 52121e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 52221e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 52321e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 524a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5253f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 5263f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 527dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 528682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 529682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 53021e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 531682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 532dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 534682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // @ is not a legal token unless objc is enabled, no need to check for ObjC. 535682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner /// FIXME: ParseObjCAtDirectives should return a DeclGroup for things like 536682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner /// @class foo, bar; 537682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCAtDirectives(); 538682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 541682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (!getLang().ObjC1) { 542682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 543682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 544682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 545682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 546682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 547682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 548791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 54923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 550f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall ObjCImpDecl? Sema::PCC_ObjCImplementation 551f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 552dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor ConsumeCodeCompletionToken(); 5537f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 554f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 5558f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 557adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 558adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 559511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 560bae35118fc5cea2da08567dbb9763af7f906dae2Chris Lattner // A function definition cannot start with a these keywords. 56197144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 56297144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 563c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 5647f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 56597144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 566d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 5677306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 5687306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 5697306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 5707306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (getLang().CPlusPlus && NextToken().is(tok::kw_template)) { 5717306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 5727306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 573d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 574c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 5757f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 5767306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 5777306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 5787306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 5797306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 5807306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (getLang().CPlusPlus) { 5817306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 5827306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 5837306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 5847306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 5857306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 5867306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 5877f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 5887306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 5897306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 5907306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 5917306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 5927306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 5937306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 5947306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 5957306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 5967306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 5977f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 5987306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 599d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 600d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 601d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 60245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 60345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor if (getLang().CPlusPlus && NextToken().is(tok::kw_template)) { 60445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 60545f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 60645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 60745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 60845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 60945f965581935791a018df829a14dff53c1dd8f47Douglas Gregor ParseExplicitInstantiation(ExternLoc, TemplateLoc, DeclEnd)); 61045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 61145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // FIXME: Detect C++ linkage specifications here? 612d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 6131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 615d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 6165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 6177f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (DS) { 6187f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DS->takeAttributesFrom(attrs); 6197f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(*DS); 6207f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } else { 6217f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(attrs); 6227f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 625682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 626682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 627682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6301426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 6311426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 632c82daefa3062721e98947e08193cd81b4e9df915Chris Lattnerbool Parser::isDeclarationAfterDeclarator() const { 6331426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 6341426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 6351426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 6361426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 6371426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 6381426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor (getLang().CPlusPlus && 6391426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 6401426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 6411426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 6421426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 6431426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 644004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 645075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 6465d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 6475d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 6485d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 649004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 650004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (!getLang().CPlusPlus && 651075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 652004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 653004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 6545d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 6555d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 6561426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 6571426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 660c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 661c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 6621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 665a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 666a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 667a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 668a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 670697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 671697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 6725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 674682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 6753acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::ParseDeclarationOrFunctionDefinition(ParsingDeclSpec &DS, 676bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt AccessSpecifier AS) { 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 6780efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 679a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 6815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 682000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 684d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 68554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 686682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 688a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 689246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 690246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 691246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 692000732226610650837478cba97843d19b75f648eChris Lattner if (getLang().ObjC2 && Tok.is(tok::at)) { 693dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 6941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 695246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 696246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 697cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 698682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 699cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 700d8ac05753dc4506224d445ff98399c01da3136e5John McCall 70154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 70254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 7030de2ae28c603322f05e2d9200c7d457c8b928983Fariborz Jahanian const char *PrevSpec = 0; 704fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 705fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) 706fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 7071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 708d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = 0; 709246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 710682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner TheDecl = ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 711682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner else 712682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner TheDecl = ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes()); 713682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 714dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 715a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 716c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 717c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 718c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 7193c6f6a7a1bb9969112617a26d2333bab2f6efd65Chris Lattner if (Tok.is(tok::string_literal) && getLang().CPlusPlus && 720c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 721682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 722d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 723682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 724682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 725c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 726d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 7275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7293acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 7307f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseDeclarationOrFunctionDefinition(ParsedAttributes &attrs, 7313acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 7323acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian ParsingDeclSpec DS(*this); 7337f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DS.takeAttributesFrom(attrs); 7347f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(DS, AS); 7353acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 7363acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 7395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 741a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 742a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 743a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 744a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 7457ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 74623c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 74723c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 7487ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 749d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 751d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 752075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const ParsedTemplateInfo &TemplateInfo) { 753075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 754a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 755a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 756a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 757a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 7582a327d11a07dfbdf20910cebbae38910eda111fdChris Lattner if (getLang().ImplicitInt && D.getDeclSpec().isEmpty()) { 759a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 760fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 76131c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 76231c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 763fec54013fcd0eb72642741584ca04c1bc292bef8John McCall PrevSpec, DiagID); 764ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 765a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 766a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 770004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 7715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7737ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 7747ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 775758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 776758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor (!getLang().CPlusPlus || 777758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try)))) { 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::l_brace, true, true); 782a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 784000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 785d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 787a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 788b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 7898935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 790a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 791b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 792b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 793d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 79423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 795f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall MultiTemplateParamsArg(Actions, 79652591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->data(), 79752591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->size()), 79852591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor D) 79923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 800a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 80154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 80254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 80354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 80454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 80554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 80654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 80754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 808d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 809c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 810d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 8117ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 8127ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 813d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 8147ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 815d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 816d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 817d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 818c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 8199ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Actions.ActOnFinishFunctionBody(Res, 0); 820d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 821d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 822d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 823393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 8247ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 825c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 832075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 83404421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 83504421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 8363218c4bb3b5d7250f12420de6db7ef3e3f805a75Douglas Gregor ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope|Scope::DeclScope); 83704421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 841a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 8430b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 845a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 851000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 856a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.isThreadSpecified()) { 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getThreadSpecLoc(), 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 870a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 8787f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 879a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 881d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 88223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 8832bd42fadafddc8acf744b57a970bdc96a077c617Steve Naroff 884a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 8855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (i == FTI.NumArgs) { 8941ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 8956898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 898a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 90104421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner if (FTI.ArgInfo[i].Param) { 9025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 9031ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 9046898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 90604421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner FTI.ArgInfo[i].Param = Param; 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 915000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 917a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 920a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.clear(); 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 925a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 926000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_parse_error); 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip to end of block or statement 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::semi, true); 932000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 936a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 93823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 94860d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isTokenStringLiteral()) { 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_string_literal); 95161364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 953a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 95460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Res(ParseStringLiteralExpression()); 955effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl if (Res.isInvalid()) return move(Res); 956a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Diagnose: wide string literal in 'asm' 958a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 959effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl return move(Res); 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 9645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 96760d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 968000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 969dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 970a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9717a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 972841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 973841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 974841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 975841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 976841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 977849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 9787a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 9797a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 9807a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 981000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_paren)) { 9821ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 98361364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 985a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 986ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeParen(); 987a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 98860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 989a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 990ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Result.isInvalid()) { 991ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SkipUntil(tok::r_paren, true, true); 992ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 993ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Tok.getLocation(); 994ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl ConsumeAnyToken(); 995ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } else { 996ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = MatchRHSPunctuation(tok::r_paren, Loc); 997ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 998ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 999ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1000a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1001effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl return move(Result); 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1004eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1005eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1006eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1007eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1008eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1009eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1010eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1011eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 101244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 101344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 101444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 101544802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 101644802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1017b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 101844802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 101944802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 102044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1021a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 10229ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 10231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 102455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 102555a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1026495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext) { 10271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 1028ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope)) && 10297452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Cannot be a type or scope token!"); 10301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1031d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 1032d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1033d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1034d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1035d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 10361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 10371734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1038d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1039d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 10404147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), false, 10414147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 0, /*IsTypename*/true)) 10429ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 10439ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 1044d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 10459ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1046d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1047d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1048d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1049d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1050d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 105123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 10521a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1053d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 10541734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 10551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateIdAnnotation *TemplateId 10561734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 10571734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (TemplateId->Kind == TNK_Function_template) { 10581734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 10591734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 10609ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 10611734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1062d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1063a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, 1064a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->getTemplateArgs(), 1065a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 1066a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor 1067a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 1068a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor /*FIXME:*/SourceLocation(), 1069a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1070a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1071a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 1072a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateArgsPtr, 1073a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 1074aa2187de137e5b809dcbbe14f3b61ae907a3d8aaDouglas Gregor TemplateId->Destroy(); 10751734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 10761734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 10771734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 10789ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 10791734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 10801734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 108139d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 10821734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1083b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 108439d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 10851734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 10861734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 10879ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1088d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1089d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1090ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 1091ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall bool wasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1092ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1093eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 10944bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis if (getLang().CPlusPlus) 1095b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 10969ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1097eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1098eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 1099608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1100b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1101b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 11021e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 11039e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 11049e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 11059e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor /*NonTrivialTypeSourceInfo*/true)) { 1106608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1107608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1108b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1109b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1110608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1111608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1112608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 11131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1114608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1115608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1116608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 11179ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 11181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 111939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 112039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (!getLang().CPlusPlus) { 1121608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1122608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 11231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1124608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1125eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 11261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 112739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 112855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 11297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1130014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1131014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 11321fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 11331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 11347c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 11357c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1136b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1137b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 11387c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1139ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1140ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1141059101f922de6eb765601459925f4c8914420b23Douglas Gregor if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateName)) { 1142c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1143c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1144c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 11459ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1146c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1147ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 114855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1149d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 115039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 115139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 115239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 115339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 11541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1155eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 115639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 11571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateIdAnnotation *TemplateId 115839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 1159c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 116039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 116139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 116239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 116339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1164059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 11659ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 116639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 116739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1168d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 11696ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 11709ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 11711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11726ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 11736ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 11746ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 11756ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 11766ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 11776ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 11786ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 11796ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1180c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 11816ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 11826ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 1183ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // In case the tokens were cached, have Preprocessor replace them 1184ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // with the annotation token. We don't need to do this if we've 1185ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // just reverted back to the state we were in before being called. 1186ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall if (!wasScopeAnnotation) 1187ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall PP.AnnotateCachedTokens(Tok); 11889ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1189eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1190eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1191eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 119239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 1193c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner/// true if the token was annotated or there was an error that could not be 1194c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner/// recovered from. 11951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 119655a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 119755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1198495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 11994bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 12006ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 12017452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon)) && 12027452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Cannot be a type or scope token!"); 1203eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 12044bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1205b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 12069ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1207edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 12089ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1209eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 12106ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 12116ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 12126ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 12136ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 12146ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 12156ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 12166ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1217c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 12186ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 12196ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 12206ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // In case the tokens were cached, have Preprocessor replace them with the 12216ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // annotation token. 12226ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.AnnotateCachedTokens(Tok); 12239ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1224eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 12256c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1226a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidisbool Parser::isTokenEqualOrMistypedEqualEqual(unsigned DiagID) { 1227a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis if (Tok.is(tok::equalequal)) { 1228a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis // We have '==' in a context that we would expect a '='. 1229a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis // The user probably made a typo, intending to type '='. Emit diagnostic, 1230a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis // fixit hint to turn '==' -> '=' and continue as if the user typed '='. 1231a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis Diag(Tok, DiagID) 1232a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), 1233a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis getTokenSimpleSpelling(tok::equal)); 1234a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis return true; 1235a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis } 1236a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 1237a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis return Tok.is(tok::equal); 1238a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1239a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 1240dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregorvoid Parser::CodeCompletionRecovery() { 124123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1242dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1243f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 1244dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return; 1245dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1246dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1247dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1248f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 1249dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return; 1250dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1251dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1252dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1253f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 1254dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1255dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 12566c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 12576c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 12586c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 12596c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 12606c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 12616c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1262f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1263f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1264f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1265f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1266f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1267f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1268f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1269f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1270f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1271f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 12721fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 12731fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1274f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1275f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1276f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1277f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1278f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1279f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1280f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1281f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1282f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1283f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1284f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1285f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 12861fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 128755817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 128855817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 128955817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 129055817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1291