Parser.cpp revision 8bb21d32e9ccc9d9c221506dff26acafa8724cca
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Parser.cpp - C Language Family Parser ----------------------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the Parser interfaces. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Parser.h" 15500d3297d2a21edeac4d46cbcbe21bc2352c2a28Chris Lattner#include "clang/Parse/ParseDiagnostic.h" 1619510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 1719510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/Scope.h" 1819510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 190102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner#include "llvm/Support/raw_ostream.h" 20d167ca0d26e43292b8b9e8d5300d92784ae0e27dChris Lattner#include "RAIIObjectsForParser.h" 21fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar#include "ParsePragma.h" 228387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet#include "clang/AST/DeclTemplate.h" 23f986038beed360c031de8654cfba43a5d3184605Francois Pichet#include "clang/AST/ASTConsumer.h" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas GregorIdentifierInfo *Parser::getSEHExceptKeyword() { 27b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor // __except is accepted as a (contextual) keyword 284e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Ident__except && (getLangOpts().MicrosoftExt || getLangOpts().Borland)) 29b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = PP.getIdentifierInfo("__except"); 30b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 31b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor return Ident__except; 32b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor} 33b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 346a91d385618ea4d28236c496f540a26877c95525Erik VerbruggenParser::Parser(Preprocessor &pp, Sema &actions, bool SkipFunctionBodies) 35614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 360fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 376a91d385618ea4d28236c496f540a26877c95525Erik Verbruggen InMessageExpression(false), TemplateParameterDepth(0), 386a91d385618ea4d28236c496f540a26877c95525Erik Verbruggen SkipFunctionBodies(SkipFunctionBodies) { 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 4023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 419e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 43849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl = 0; 44fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 45fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 46fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 47cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(new PragmaAlignHandler(actions)); 48cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.AddPragmaHandler(AlignHandler.get()); 49cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar 50aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler(actions)); 51aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); 52aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman 539b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis OptionsHandler.reset(new PragmaOptionsHandler(actions)); 549b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(OptionsHandler.get()); 559b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 569b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PackHandler.reset(new PragmaPackHandler(actions)); 579b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(PackHandler.get()); 5862c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian 5962c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(new PragmaMSStructHandler(actions)); 6062c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.AddPragmaHandler(MSStructHandler.get()); 619b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 629b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis UnusedHandler.reset(new PragmaUnusedHandler(actions, *this)); 639b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(UnusedHandler.get()); 649b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 659b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis WeakHandler.reset(new PragmaWeakHandler(actions)); 669b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(WeakHandler.get()); 67321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne 685f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall RedefineExtnameHandler.reset(new PragmaRedefineExtnameHandler(actions)); 695f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.AddPragmaHandler(RedefineExtnameHandler.get()); 705f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall 71321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(new PragmaFPContractHandler(actions, *this)); 72321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.AddPragmaHandler("STDC", FPContractHandler.get()); 73f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 744e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 75f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset( 76f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne new PragmaOpenCLExtensionHandler(actions, *this)); 77f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 78f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 79f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); 80f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 81f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 82f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 850102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// If a crash happens while the parser is active, print out a line indicating 860102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// what the current token is. 875f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid PrettyStackTraceParserEntry::print(raw_ostream &OS) const { 880102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &Tok = P.getCurToken(); 89ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.is(tok::eof)) { 900102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner OS << "<eof> parser at end of file\n"; 910102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner return; 920102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner } 931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 94ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.getLocation().isInvalid()) { 95ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner OS << "<unknown> parser at unknown location\n"; 96ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner return; 97ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner } 981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 990102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Preprocessor &PP = P.getPreprocessor(); 1000102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Tok.getLocation().print(OS, PP.getSourceManager()); 1019fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar if (Tok.isAnnotation()) 1029fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": at annotation token \n"; 1039fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar else 1049fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": current parser token '" << PP.getSpelling(Tok) << "'\n"; 105f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor} 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1070102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 1083cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 10933e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 1101ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 1111ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 1123cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 1131ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1164b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 1174b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 1184b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 1194b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 1204b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The kind of diagnostic to emit. 1214b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 1224b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 1234b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 124b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 125b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 1264b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 1274b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 1284b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 1294b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 1304b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 1311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 133849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 134849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1354b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1364b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 137837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 138837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 139837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall case tok::semi: return Tok.is(tok::colon); // : for ; 140837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 141837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 142837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 143837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// input. If so, it is consumed and false is returned. 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If the input is malformed, this emits the specified diagnostic. Next, if 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// returned. 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Msg, tok::TokenKind SkipToTok) { 152dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 156a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 157837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 158837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 159837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 160837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall Diag(Loc, DiagID) 161837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << Msg 162837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << FixItHint::CreateReplacement(SourceRange(Loc), 163837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall getTokenSimpleSpelling(ExpectedTok)); 164837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall ConsumeAnyToken(); 165837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 166837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 167837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 168837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 169837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1704b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor const char *Spelling = 0; 171b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EndLoc.isValid() && 173b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { 1744b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // Show what code to insert to fix this problem. 1751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(EndLoc, DiagID) 1764b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor << Msg 177849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, Spelling); 1784b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } else 1794b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Tok, DiagID) << Msg; 1804b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (SkipToTok != tok::unknown) 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(SkipToTok); 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1869ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 1879ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { 1889ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); 1899ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 1909ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 1919ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 1929ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 1939ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 1949ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 1959ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 1969ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 1979ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 1989ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 1999ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 2009ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2019ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2029ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 2039ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 2049ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 210012cf464254804279efa84e21b4b493dde76c5f1Chris Lattner/// it (unless DontConsume is true). Because we cannot guarantee that the 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 214a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 216a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 217eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikiebool Parser::SkipUntil(ArrayRef<tok::TokenKind> Toks, bool StopAtSemi, 218eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie bool DontConsume, bool StopAtCodeCompletion) { 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 224eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie for (unsigned i = 0, NumToks = Toks.size(); i != NumToks; ++i) { 225000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DontConsume) { 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 234a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 239dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 240dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2413437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis if (!StopAtCodeCompletion) 2423437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis ConsumeToken(); 243dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 244dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 2455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2483437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2533437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 2575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2583437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 260a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 2785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 281a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 2845cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 2855cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 2865cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 28955edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (StopAtSemi) 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 300a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 3099e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 3109e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 31123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 31223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 3149c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 32023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 32290ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 32390ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 32423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (!getCurScope()->decl_empty()) 32523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 326a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 32723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 32823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 329a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3309e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 3319e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3339e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3367a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Set the flags for the current scope to ScopeFlags. If ManageFlags is false, 3377a614d8380297fcd2bc23986241905d97222948cRichard Smith/// this object does nothing. 3387a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::ParseScopeFlags(Parser *Self, unsigned ScopeFlags, 3397a614d8380297fcd2bc23986241905d97222948cRichard Smith bool ManageFlags) 3407a614d8380297fcd2bc23986241905d97222948cRichard Smith : CurScope(ManageFlags ? Self->getCurScope() : 0) { 3417a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) { 3427a614d8380297fcd2bc23986241905d97222948cRichard Smith OldFlags = CurScope->getFlags(); 3437a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(ScopeFlags); 3447a614d8380297fcd2bc23986241905d97222948cRichard Smith } 3457a614d8380297fcd2bc23986241905d97222948cRichard Smith} 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3477a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Restore the flags for the current scope to what they were before this 3487a614d8380297fcd2bc23986241905d97222948cRichard Smith/// object overrode them. 3497a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::~ParseScopeFlags() { 3507a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) 3517a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(OldFlags); 3527a614d8380297fcd2bc23986241905d97222948cRichard Smith} 3535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 36123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 36223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 36323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 3659e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 3669e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 367fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 3688387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Free LateParsedTemplatedFunction nodes. 3698387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet for (LateParsedTemplateMapT::iterator it = LateParsedTemplateMap.begin(); 3708387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet it != LateParsedTemplateMap.end(); ++it) 3718387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet delete it->second; 3728387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 373fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Remove the pragma handlers we installed. 374cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.RemovePragmaHandler(AlignHandler.get()); 375cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(); 376aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.RemovePragmaHandler("GCC", GCCVisibilityHandler.get()); 377aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(); 3789b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(OptionsHandler.get()); 379861800c676004eabed5927f0552620d06c80a40aDaniel Dunbar OptionsHandler.reset(); 3809b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(PackHandler.get()); 3814726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek PackHandler.reset(); 38262c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.RemovePragmaHandler(MSStructHandler.get()); 38362c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(); 3849b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(UnusedHandler.get()); 3854726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek UnusedHandler.reset(); 3869b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(WeakHandler.get()); 3879991479ad5dde617168cc1e4b18425cdbbfd9fa9Eli Friedman WeakHandler.reset(); 3885f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.RemovePragmaHandler(RedefineExtnameHandler.get()); 3895f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall RedefineExtnameHandler.reset(); 390f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 3914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 392f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 393f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset(); 394f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); 395f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 396f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 397321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.RemovePragmaHandler("STDC", FPContractHandler.get()); 398321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(); 399f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 40013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 40113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 4055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 40731e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 40823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "A scope is already active?"); 40931e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 410c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 411c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 412c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor // Prime the lexer look-ahead. 413c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor ConsumeToken(); 414a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 415000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::eof) && 4164e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie !getLangOpts().CPlusPlus) // Empty source file is an extension in C 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::ext_empty_source_file); 418a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 41934870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 420a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 4214e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1) { 422a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 423a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 424a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 425a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 426a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 427a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 42834870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 429662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 430e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Ident_instancetype = 0; 4317eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_final = 0; 4327eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_override = 0; 4331f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 434662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 43582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 4364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().AltiVec) { 43782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 43882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 43982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4400a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4410a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_introduced = 0; 4420a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_deprecated = 0; 4430a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_obsoleted = 0; 444b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Ident_unavailable = 0; 44528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 446b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = 0; 447b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 44828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = Ident__exception_info = Ident__abnormal_termination = 0; 44928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = Ident___exception_info = Ident___abnormal_termination = 0; 45028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = Ident_GetExceptionInfo = Ident_AbnormalTermination = 0; 45128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 4524e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if(getLangOpts().Borland) { 45328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 45428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 45528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 45628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 45728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 45828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 45928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 46028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 46128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 46228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 46328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 46428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 46528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 46628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 46728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 46828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 46928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 47028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 47128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 47228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 4735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 47513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramernamespace { 47613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// \brief RAIIObject to destroy the contents of a SmallVector of 47713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// TemplateIdAnnotation pointers and clear the vector. 47813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer class DestroyTemplateIdAnnotationsRAIIObj { 47913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer SmallVectorImpl<TemplateIdAnnotation *> &Container; 48013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer public: 48113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj(SmallVectorImpl<TemplateIdAnnotation *> 48213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer &Container) 48313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer : Container(Container) {} 48413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 48513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer ~DestroyTemplateIdAnnotationsRAIIObj() { 48613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = 48713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.begin(), E = Container.end(); 48813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer I != E; ++I) 48913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer (*I)->Destroy(); 49013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.clear(); 49113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer } 49213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer }; 49313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer} 49413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 497682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 49813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 499b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 500e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // Skip over the EOF token, flagging end of previous input for incremental 501e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // processing 502e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (PP.isIncrementalProcessingEnabled() && Tok.is(tok::eof)) 503e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann ConsumeToken(); 504e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 505b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis while (Tok.is(tok::annot_pragma_unused)) 506b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 507b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 508682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Result = DeclGroupPtrTy(); 5099299f3fa85796613cc787a2062c9562d07c8613eChris Lattner if (Tok.is(tok::eof)) { 5108387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 5114e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing) 5128387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.SetLateTemplateParser(LateTemplateParserCallback, this); 513e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (!PP.isIncrementalProcessingEnabled()) 514e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann Actions.ActOnEndOfTranslationUnit(); 515e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann //else don't tell Sema that we ended parsing: more input might come. 5168387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 5179299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 5189299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 519a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5200b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 5217f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseCXX0XAttributes(attrs); 5227f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 523e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 5247f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 5255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTranslationUnit: 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// translation-unit: [C99 6.9] 530a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// external-declaration 531a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// translation-unit external-declaration 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseTranslationUnit() { 5338935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Initialize(); 534a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 535682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy Res; 53689307ffaf8acf4d6fdffd72b607ca4fbcfdffc9dSteve Naroff while (!ParseTopLevelDecl(Res)) 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /*parse them all*/; 5381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 53906f548596beef4c0a227a45cba996497f99566c0Chris Lattner ExitScope(); 54023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "Scope imbalance!"); 5415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 54490b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 545c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 546c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 547c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 548a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration 5495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 550c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 5535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 5545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 5555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 557c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 5595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 561a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration: 562a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 563a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 56445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 5657f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 5667f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 5677f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 56813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 56936d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 5707d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 5717d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis if (PP.isCodeCompletionReached()) { 5727d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 5737d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 5747d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis } 5757d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 576d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *SingleDecl = 0; 5775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 578426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola case tok::annot_pragma_vis: 579426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola HandlePragmaVisibility(); 580426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola return DeclGroupPtrTy(); 581aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman case tok::annot_pragma_pack: 582aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman HandlePragmaPack(); 583aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman return DeclGroupPtrTy(); 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 5854e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 5867fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_top_level_semi : diag::ext_top_level_semi) 5877fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith << FixItHint::CreateRemoval(Tok.getLocation()); 5881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Invoke action for top-level semicolon. 591682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 59290b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 593883692ebd421c40b44e2c2665e5f54dade5621bcNico Weber Diag(Tok, diag::err_extraneous_closing_brace); 59490b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 595682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 59690b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 59790b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 598682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 599c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 600c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 601c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 60239146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 6037f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 604c3018153a11afe91849748a93d920040a571b76cChris Lattner } 605dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 6067f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 607bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 60821e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 60921e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 61021e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 611a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 6123f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 6133f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 614dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 615682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 616682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 61721e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 618682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 619dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 62195ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian return ParseObjCAtDirectives(); 6225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 6244e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().ObjC1) { 625682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 626682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 627682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 628682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 629682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 630682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 631791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 63223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 633849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl? Sema::PCC_ObjCImplementation 634f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 6357d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6367d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 637f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 6388f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 640adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 641adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 642511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 643c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 64426d6023cb0d343bf8fc8836f97d39709bbd4afa0Chad Rosier // A function definition cannot start with any of these keywords. 64597144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 64697144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 647c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 6487f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 64997144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 650d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 6517306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 6527306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 6537306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 6544e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 6557306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 6567306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 657d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 658c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 6597f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6607306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 6617306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 6627306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 6637306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 6644e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 6657306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 6667306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 6677306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 6687306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 6697306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 6707306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 6717f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6727306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 6737306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 6747306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 6757306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 6767306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 6777306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 6787306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 6797306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 6807306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 6817f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6827306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 683d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 684d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 685d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 68645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 6874e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 68845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 68945f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 69045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 6914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(ExternLoc, getLangOpts().CPlusPlus0x ? 6929324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::warn_cxx98_compat_extern_template : 6939324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); 69445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 69545f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 6969241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ParseExplicitInstantiation(Declarator::FileContext, 6979241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ExternLoc, TemplateLoc, DeclEnd)); 69845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 69945f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // FIXME: Detect C++ linkage specifications here? 700d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 7011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 702f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 703f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 704563a645de82231a55e221fe655b7188bf8369662Francois Pichet ParseMicrosoftIfExistsExternalDeclaration(); 705f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 7066aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 708d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 7107f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (DS) { 7117f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DS->takeAttributesFrom(attrs); 7127f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(*DS); 7137f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } else { 7147f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(attrs); 7157f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } 7165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 718682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 719682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 720682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7231426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7241426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 725e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 726e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 7274e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 728e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 729e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 730e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 731e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 732e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 7331426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 7341426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 7351426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 7361426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 7371426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 7384e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().CPlusPlus && 7391426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 7401426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7411426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 7421426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7431426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 744004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 745075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 7465d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 7475d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 7485d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 749004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 7504e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus && 751075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 752004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 753e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 7544e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 755e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 756e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 757e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 758004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 7595d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 7605d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 7611426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7621426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 765c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 766c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 7671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 770a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 771a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 772a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 773a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 7745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 775697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 776697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 779682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 7803acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::ParseDeclarationOrFunctionDefinition(ParsingDeclSpec &DS, 781bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt AccessSpecifier AS) { 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 7830efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 784a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 787000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 789d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 79054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 791682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 793a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 794246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 795246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 796246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 7974e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC2 && Tok.is(tok::at)) { 798dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 7991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 800246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 801246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 802cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 803682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 804cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 805d8ac05753dc4506224d445ff98399c01da3136e5John McCall 80654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 80754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 8080de2ae28c603322f05e2d9200c7d457c8b928983Fariborz Jahanian const char *PrevSpec = 0; 809fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 810fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) 811fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 8121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 813246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 814bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 815bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 816bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return Actions.ConvertDeclToDeclGroup( 817bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes())); 818dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 819a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 820c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 821c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 822c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 8234e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Tok.is(tok::string_literal) && getLangOpts().CPlusPlus && 824c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 825682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 826d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 827682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 828682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 829c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 830d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8333acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 8347f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseDeclarationOrFunctionDefinition(ParsedAttributes &attrs, 8353acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 8363acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian ParsingDeclSpec DS(*this); 8377f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DS.takeAttributesFrom(attrs); 8389735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian // Must temporarily exit the objective-c container scope for 8399735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian // parsing c constructs and re-enter objc container scope 8409735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian // afterwards. 8419735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian ObjCDeclContextSwitch ObjCDC(*this); 8429735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian 8439735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian return ParseDeclarationOrFunctionDefinition(DS, AS); 8443acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 8453acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 850a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 851a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 852a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 853a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 8547ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 85523c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 85623c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 8577ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 858d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 860d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 861c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins const ParsedTemplateInfo &TemplateInfo, 862c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins LateParsedAttrList *LateParsedAttrs) { 86328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley // Poison the SEH identifiers so they are flagged as illegal in function bodies 86428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 865075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 866a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 867a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 868a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 869a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 8704e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ImplicitInt && D.getDeclSpec().isEmpty()) { 871a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 872fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 87331c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 87431c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 875fec54013fcd0eb72642741584ca04c1bc292bef8John McCall PrevSpec, DiagID); 876ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 877a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 878a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 8815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 882004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8857ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 8867ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 887758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 8884e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!getLangOpts().CPlusPlus || 889cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && 890cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Tok.isNot(tok::equal)))) { 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::l_brace, true, true); 895a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 897000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 898d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 900a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 901c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Check to make sure that any normal attributes are allowed to be on 902c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // a definition. Late parsed attributes are checked at the end. 903c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (Tok.isNot(tok::equal)) { 904c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins AttributeList *DtorAttrs = D.getAttributes(); 905c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins while (DtorAttrs) { 906c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (!IsThreadSafetyAttribute(DtorAttrs->getName()->getName())) { 907c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins Diag(DtorAttrs->getLoc(), diag::warn_attribute_on_function_definition) 908c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins << DtorAttrs->getName()->getName(); 909c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 910c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins DtorAttrs = DtorAttrs->getNext(); 911c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 912c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 913c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 9148387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 9158387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 9164e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing && 9178387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind == ParsedTemplateInfo::Template) { 9188387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet MultiTemplateParamsArg TemplateParameterLists(Actions, 9198387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.TemplateParams->data(), 9208387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.TemplateParams->size()); 9218387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9228387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 9238387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 9248387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 92545fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(FDK_Definition); 9268387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 9272c712f50cd56eaf3662989b556e9c6b1e8fcd11aKaelyn Uhrain move(TemplateParameterLists)); 9288387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 9298387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 9308387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9318387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (DP) { 932e1fca502e7f1349e9b4520a4ca9a02413bcf2b14Francois Pichet LateParsedTemplatedFunction *LPT = new LateParsedTemplatedFunction(DP); 9338387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9348387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FnD = 0; 9358387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(DP)) 9368387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = FunTmpl->getTemplatedDecl(); 9378387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 9388387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = cast<FunctionDecl>(DP); 939d4a0caf78e7c18e7aca65fbfd799a6c024ff51fbFrancois Pichet Actions.CheckForFunctionRedefinition(FnD); 9408387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9418387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplateMap[FnD] = LPT; 9428387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.MarkAsLateParsedTemplate(FnD); 9438387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(LPT->Toks); 9448387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } else { 9458387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet CachedTokens Toks; 9468387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(Toks); 9478387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 9488387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 9498387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 9508387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 951b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 9528935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 953a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 954b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 955b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 956d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 95723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 958f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall MultiTemplateParamsArg(Actions, 95952591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->data(), 96052591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->size()), 96152591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor D) 96223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 963a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 96454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 96554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 96654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 96754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 96854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 96954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 97054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 971cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::equal)) { 9724e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Only C++ function definitions have '='"); 973cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ConsumeToken(); 974cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 975cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.ActOnFinishFunctionBody(Res, 0, false); 976cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 977cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt bool Delete = false; 978cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SourceLocation KWLoc; 979cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::kw_delete)) { 9804e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 9817fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_deleted_function : 982d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_deleted_function); 983cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 984cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 985cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDeleted(Res, KWLoc); 986cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete = true; 987cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else if (Tok.is(tok::kw_default)) { 9884e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 9897fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_defaulted_function : 990d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_defaulted_function); 991cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 992cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 993cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDefaulted(Res, KWLoc); 994cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 995cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 996cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 997cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 998cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::comma)) { 999cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 1000cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt << Delete; 1001cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SkipUntil(tok::semi); 1002cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1003cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 1004cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete ? "delete" : "default", tok::semi); 1005cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1006cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1007cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt return Res; 1008cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1009cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1010d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 1011c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 1012d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 10137ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 10147ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 1015d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 10167ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 1017d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 1018d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 1019d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 1020c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 10219ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Actions.ActOnFinishFunctionBody(Res, 0); 1022d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 1023d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 1024d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 1025393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 10267ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 1027c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Late attributes are parsed in the same scope as the function body. 1028c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (LateParsedAttrs) 1029c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins ParseLexedAttributeList(*LateParsedAttrs, Res, false, true); 1030c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 1031c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 1038075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 104004421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 104104421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 10423218c4bb3b5d7250f12420de6db7ef3e3f805a75Douglas Gregor ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope|Scope::DeclScope); 104304421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 1047a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 10490b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 10505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1051a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 10565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1057000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1062a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.isThreadSpecified()) { 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getThreadSpecLoc(), 10735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 10755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1076a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 10785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 10847f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 1085a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 1087d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 108823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 10892bd42fadafddc8acf744b57a970bdc96a077c617Steve Naroff 1090a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (i == FTI.NumArgs) { 11001ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 11016898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1104a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 110704421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner if (FTI.ArgInfo[i].Param) { 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 11091ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 11106898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 111204421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner FTI.ArgInfo[i].Param = Param; 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 1121000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 1123a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11247984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.clear(); 11257984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 11277984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.setCommaLoc(ConsumeToken()); 1128a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1132a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11338bb21d32e9ccc9d9c221506dff26acafa8724ccaChris Lattner if (ExpectAndConsumeSemi(diag::err_expected_semi_declaration)) { 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip to end of block or statement 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::semi, true); 1136000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1140a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 114223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 115260d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 11537f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek switch (Tok.getKind()) { 11547f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::string_literal: 11557f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek break; 115699831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf8_string_literal: 115799831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf16_string_literal: 115899831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf32_string_literal: 11597f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::wide_string_literal: { 11607f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek SourceLocation L = Tok.getLocation(); 11617f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_asm_operand_wide_string_literal) 116299831e4677a7e2e051af636221694d60ba31fcdbRichard Smith << (Tok.getKind() == tok::wide_string_literal) 11637f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek << SourceRange(L, L); 11647f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 11657f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek } 11667f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek default: 11677f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_expected_string_literal); 11687f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1170a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 117199831e4677a7e2e051af636221694d60ba31fcdbRichard Smith return ParseStringLiteralExpression(); 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 117960d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1180000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1181dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1182a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11837a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1184841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1185841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1186841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1187841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1188841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1189849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 11907a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 11917a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 11927a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 11934a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 11944a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 11951ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 119661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1198a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 119960d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1200a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1201ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Result.isInvalid()) { 1202ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SkipUntil(tok::r_paren, true, true); 1203ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 1204ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Tok.getLocation(); 1205ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl ConsumeAnyToken(); 1206ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } else { 12074a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Close the paren and get the location of the end bracket 12084a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1209ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 12104a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor *EndLoc = T.getCloseLocation(); 1211ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1212a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1213effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl return move(Result); 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 121625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// \brief Get the TemplateIdAnnotation from the token and put it in the 121725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// cleanup pool so that it gets destroyed when parsing the current top level 121825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// declaration is finished. 121925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios KyrtzidisTemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { 122025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis assert(tok.is(tok::annot_template_id) && "Expected template-id token"); 122125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation * 122225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); 122325a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis return Id; 122425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis} 122525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis 1226eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1227eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1228eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1229eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1230eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1231eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1232eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1233eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 123444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 123544802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 123644802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 123744802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 123844802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1239b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 124044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 124144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 124244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1243a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 12449ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 12451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 124655a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 124755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1248fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrainbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { 12491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 125042d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope) 125142d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie || Tok.is(tok::kw_decltype)) && "Cannot be a type or scope token!"); 12521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1253d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 1254d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1255d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1256d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1257d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 12581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 12591734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1260d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1261d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 1262efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), 1263efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false, 12644147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 0, /*IsTypename*/true)) 12659ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 12669ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 12674e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().MicrosoftExt) 1268a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet Diag(Tok.getLocation(), diag::warn_expected_qualified_after_typename); 1269a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet else 1270a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 12719ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1272d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1273d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1274d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1275d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1276d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 127723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 12781a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1279d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 12801734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 128125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 12821734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (TemplateId->Kind == TNK_Function_template) { 12831734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 12841734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 12859ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 12861734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1287d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1288a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, 1289a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->getTemplateArgs(), 1290a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 129166581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara 1292a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 129366581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateId->TemplateKWLoc, 1294a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1295a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1296a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 129766581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateArgsPtr, 1298a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 12991734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 13001734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 13011734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 13029ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 13031734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 13041734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 130539d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 13061734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1307b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 130839d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 13091734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 13101734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 13119ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1312d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1313d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1314ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 1315ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall bool wasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1316ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1317eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 13184e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 1319b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 13209ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1321eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1322eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 1323fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain IdentifierInfo *CorrectedII = 0; 1324608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1325b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1326b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 13271e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 13289e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 13299e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 1330fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/false, 1331fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain /*NonTrivialTypeSourceInfo*/true, 1332fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain NeedType ? &CorrectedII : NULL)) { 1333fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain // A FixIt was applied as a result of typo correction 1334fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain if (CorrectedII) 1335fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain Tok.setIdentifierInfo(CorrectedII); 1336608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1337608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1338b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1339b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1340608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1341608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1342608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 13431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1344608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1345608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1346608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 13479ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 13481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 134939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 13504e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 1351608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1352608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 13531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1354608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1355eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 13561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 135739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 135855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 13597532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1360014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1361014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 13621fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 13631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 13647c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 13657c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1366b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1367b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 13687c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1369ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1370ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1371e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 1372e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName)) { 1373c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1374c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1375c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 13769ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1377c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1378ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 137955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1380d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 138139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 138239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 138339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 138439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 13851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1386eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 138739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 138825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1389c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 139039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 139139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 139239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 139339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1394059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 13959ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 139639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 139739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1398d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 13996ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 14009ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 14011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14026ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 14036ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 14046ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 14056ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 14066ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 14076ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 14086ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 14096ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1410c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 14116ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 14126ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 1413ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // In case the tokens were cached, have Preprocessor replace them 1414ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // with the annotation token. We don't need to do this if we've 1415ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // just reverted back to the state we were in before being called. 1416ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall if (!wasScopeAnnotation) 1417ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall PP.AnnotateCachedTokens(Tok); 14189ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1419eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1420eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1421eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 142239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 1423c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner/// true if the token was annotated or there was an error that could not be 1424c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner/// recovered from. 14251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 142655a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 142755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1428495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 14294e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 14306ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 14313b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 143242d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) || 143342d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie Tok.is(tok::kw_decltype)) && "Cannot be a type or scope token!"); 1434eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 14354bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1436b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 14379ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1438edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 14399ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1440eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 14416ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 14426ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 14436ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 14446ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 14456ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 14466ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 14476ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1448c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 14496ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 14506ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 14516ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // In case the tokens were cached, have Preprocessor replace them with the 14526ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // annotation token. 14536ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.AnnotateCachedTokens(Tok); 14549ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1455eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 14566c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1457fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieubool Parser::isTokenEqualOrEqualTypo() { 1458fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu tok::TokenKind Kind = Tok.getKind(); 1459fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu switch (Kind) { 1460fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu default: 1461d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu return false; 1462fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::ampequal: // &= 1463fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::starequal: // *= 1464fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::plusequal: // += 1465fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::minusequal: // -= 1466fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::exclaimequal: // != 1467fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::slashequal: // /= 1468fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::percentequal: // %= 1469fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lessequal: // <= 1470fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lesslessequal: // <<= 1471fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greaterequal: // >= 1472fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greatergreaterequal: // >>= 1473fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::caretequal: // ^= 1474fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::pipeequal: // |= 1475fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equalequal: // == 1476fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu Diag(Tok, diag::err_invalid_token_after_declarator_suggest_equal) 1477fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << getTokenSimpleSpelling(Kind) 1478fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), "="); 1479fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equal: 1480fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu return true; 1481fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu } 1482a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1483a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 14847d100872341f233c81e1d7b72b40457e62c36862Argyrios KyrtzidisSourceLocation Parser::handleUnexpectedCodeCompletionToken() { 14857d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis assert(Tok.is(tok::code_completion)); 14867d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis PrevTokLocation = Tok.getLocation(); 14877d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 148823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1489dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1490f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 14917d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 14927d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1493dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1494dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1495dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1496f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 14977d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 14987d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1499dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1500dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1501dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1502f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 15037d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 15047d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1505dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1506dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 15076c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 15086c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 15096c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 15106c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 15116c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 15126c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1513f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1514f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1515f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1516f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1517f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1518f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1519f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1520f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1521f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1522f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 15231fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 15241fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1525f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1526f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1527f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1528f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1529f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1530f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1531f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1532f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1533f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1534f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1535f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1536f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 15371fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 153855817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 153955817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 154055817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 154155817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1542f986038beed360c031de8654cfba43a5d3184605Francois Pichet 15433896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregorbool Parser::ParseMicrosoftIfExistsCondition(IfExistsCondition& Result) { 1544f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 1545f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 15463896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.IsIfExists = Tok.is(tok::kw___if_exists); 15473896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.KeywordLoc = ConsumeToken(); 1548f986038beed360c031de8654cfba43a5d3184605Francois Pichet 15494a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 15504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 15513896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Diag(Tok, diag::err_expected_lparen_after) 15523896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor << (Result.IsIfExists? "__if_exists" : "__if_not_exists"); 1553f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1554f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1555f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1556f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 1557efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(Result.SS, ParsedType(), 1558efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false); 1559f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1560f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 15613896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Result.SS.isInvalid()) { 15623896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1563f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1564f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1565f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1566e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // Parse the unqualified-id. 1567e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; // FIXME: parsed, but unused. 1568e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(Result.SS, false, true, true, ParsedType(), 1569e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, Result.Name)) { 15703896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1571f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1572f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1573f986038beed360c031de8654cfba43a5d3184605Francois Pichet 15743896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (T.consumeClose()) 1575f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 15763896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1577f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 157865019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor switch (Actions.CheckMicrosoftIfExistsSymbol(getCurScope(), Result.KeywordLoc, 157965019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor Result.IsIfExists, Result.SS, 15803896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Name)) { 15813896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Exists: 15823896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = Result.IsIfExists ? IEB_Parse : IEB_Skip; 15833896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 1584f986038beed360c031de8654cfba43a5d3184605Francois Pichet 15853896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_DoesNotExist: 15863896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = !Result.IsIfExists ? IEB_Parse : IEB_Skip; 15873896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 15883896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 15893896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Dependent: 15903896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = IEB_Dependent; 15913896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 159265019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor 159365019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor case Sema::IER_Error: 159465019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor return true; 15953896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 1596f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1597f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 1598f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1599f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1600563a645de82231a55e221fe655b7188bf8369662Francois Pichetvoid Parser::ParseMicrosoftIfExistsExternalDeclaration() { 16013896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor IfExistsCondition Result; 1602f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 1603f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1604f986038beed360c031de8654cfba43a5d3184605Francois Pichet 16053896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor BalancedDelimiterTracker Braces(*this, tok::l_brace); 16063896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Braces.consumeOpen()) { 1607f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lbrace); 1608f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1609f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1610f986038beed360c031de8654cfba43a5d3184605Francois Pichet 16113896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor switch (Result.Behavior) { 16123896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Parse: 16133896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse declarations below. 16143896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 16153896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 16163896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Dependent: 16173896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor llvm_unreachable("Cannot have a dependent external declaration"); 16183896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 16193896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Skip: 16203896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.skipToEnd(); 1621f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1622f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1623f986038beed360c031de8654cfba43a5d3184605Francois Pichet 16243896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse the declarations. 16253896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { 1626f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 1627f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseCXX0XAttributes(attrs); 1628f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 1629f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 1630f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 1631f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 16323896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 16333896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.consumeClose(); 1634f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 16356aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 16365948ae1021122164b22f74353bb7fe325a64f616Douglas GregorParser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) { 163732ad2ee2618745ce3da51c2ae066ed5f21157c07Ted Kremenek assert(Tok.isObjCAtKeyword(tok::objc___experimental_modules_import) && 163865030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor "Improper start to module import"); 16396aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ImportLoc = ConsumeToken(); 16406aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 16413d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor llvm::SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path; 16423d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 16433d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Parse the module path. 16443d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor do { 16453d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (!Tok.is(tok::identifier)) { 1646c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor if (Tok.is(tok::code_completion)) { 1647c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor Actions.CodeCompleteModuleImport(ImportLoc, Path); 1648c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor ConsumeCodeCompletionToken(); 1649c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor SkipUntil(tok::semi); 1650c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor return DeclGroupPtrTy(); 1651c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor } 1652c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor 16533d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Diag(Tok, diag::err_module_expected_ident); 16543d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor SkipUntil(tok::semi); 16553d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor return DeclGroupPtrTy(); 16563d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 16573d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 16583d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Record this part of the module path. 16593d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Path.push_back(std::make_pair(Tok.getIdentifierInfo(), Tok.getLocation())); 16603d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 16613d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 16623d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (Tok.is(tok::period)) { 16633d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 16643d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor continue; 16653d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 16663d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 16673d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor break; 16683d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } while (true); 16696aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 16705948ae1021122164b22f74353bb7fe325a64f616Douglas Gregor DeclResult Import = Actions.ActOnModuleImport(AtLoc, ImportLoc, Path); 16716aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor ExpectAndConsumeSemi(diag::err_module_expected_semi); 16726aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (Import.isInvalid()) 16736aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 16746aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 16756aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return Actions.ConvertDeclToDeclGroup(Import.get()); 16766aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor} 16774a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1678d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregorbool Parser::BalancedDelimiterTracker::diagnoseOverflow() { 1679d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, diag::err_parser_impl_limit_overflow); 1680d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.SkipUntil(tok::eof); 1681d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 16824a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 16834a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 16844a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregorbool Parser::BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, 16854a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor const char *Msg, 16864a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor tok::TokenKind SkipToToc ) { 16874a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.Tok.getLocation(); 1688d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.ExpectAndConsume(Kind, DiagID, Msg, SkipToToc)) 1689d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 1690d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1691d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (getDepth() < MaxDepth) 1692d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return false; 1693d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1694d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return diagnoseOverflow(); 16954a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 16964a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1697d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregorbool Parser::BalancedDelimiterTracker::diagnoseMissingClose() { 1698d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor assert(!P.Tok.is(Close) && "Should have consumed closing delimiter"); 1699d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1700d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor const char *LHSName = "unknown"; 1701b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie diag::kind DID; 1702d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor switch (Close) { 1703b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie default: llvm_unreachable("Unexpected balanced token"); 1704d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; 1705d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; 1706d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; 17074a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 1708d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, DID); 1709d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(LOpen, diag::note_matching) << LHSName; 1710d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.SkipUntil(Close)) 1711d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor LClose = P.Tok.getLocation(); 17124a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 17134a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 17143896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 17153896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregorvoid Parser::BalancedDelimiterTracker::skipToEnd() { 17163896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor P.SkipUntil(Close, false); 17173896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor} 1718