Parser.cpp revision b57791e5b40afa6691063c83d0e95c416fb19fde
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 28b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor if (!Ident__except && (getLang().MicrosoftExt || getLang().Borland)) 29b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = PP.getIdentifierInfo("__except"); 30b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 31b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor return Ident__except; 32b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor} 33b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 34f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCallParser::Parser(Preprocessor &pp, Sema &actions) 35614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 360fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 370fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor InMessageExpression(false), TemplateParameterDepth(0) { 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 3923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 409e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 42d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ObjCImpDecl = 0; 43fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 44fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 45fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 46cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(new PragmaAlignHandler(actions)); 47cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.AddPragmaHandler(AlignHandler.get()); 48cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar 49aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler(actions)); 50aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); 51aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman 529b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis OptionsHandler.reset(new PragmaOptionsHandler(actions)); 539b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(OptionsHandler.get()); 549b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 559b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PackHandler.reset(new PragmaPackHandler(actions)); 569b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(PackHandler.get()); 5762c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian 5862c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(new PragmaMSStructHandler(actions)); 5962c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.AddPragmaHandler(MSStructHandler.get()); 609b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 619b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis UnusedHandler.reset(new PragmaUnusedHandler(actions, *this)); 629b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(UnusedHandler.get()); 639b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 649b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis WeakHandler.reset(new PragmaWeakHandler(actions)); 659b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(WeakHandler.get()); 66321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne 67321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(new PragmaFPContractHandler(actions, *this)); 68321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.AddPragmaHandler("STDC", FPContractHandler.get()); 69f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 70f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne if (getLang().OpenCL) { 71f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset( 72f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne new PragmaOpenCLExtensionHandler(actions, *this)); 73f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 74f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 75f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); 76f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 77f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 78f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 810102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// If a crash happens while the parser is active, print out a line indicating 820102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// what the current token is. 835f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid PrettyStackTraceParserEntry::print(raw_ostream &OS) const { 840102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &Tok = P.getCurToken(); 85ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.is(tok::eof)) { 860102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner OS << "<eof> parser at end of file\n"; 870102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner return; 880102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner } 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 90ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.getLocation().isInvalid()) { 91ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner OS << "<unknown> parser at unknown location\n"; 92ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner return; 93ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner } 941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 950102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Preprocessor &PP = P.getPreprocessor(); 960102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Tok.getLocation().print(OS, PP.getSourceManager()); 979fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar if (Tok.isAnnotation()) 989fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": at annotation token \n"; 999fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar else 1009fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": current parser token '" << PP.getSpelling(Tok) << "'\n"; 101f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor} 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1030102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 1043cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 10533e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 1061ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 1071ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 1083cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 1091ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1124b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 1134b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 1144b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 1154b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 1164b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The kind of diagnostic to emit. 1174b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 1184b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 1194b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 120b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 121b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 1224b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 1234b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 1244b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 1254b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 1264b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 1271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 129849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 130849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1314b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1324b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 133837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 134837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 135837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall case tok::semi: return Tok.is(tok::colon); // : for ; 136837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 137837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 138837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 139837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// input. If so, it is consumed and false is returned. 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If the input is malformed, this emits the specified diagnostic. Next, if 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// returned. 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Msg, tok::TokenKind SkipToTok) { 148dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 152a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 153837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 154837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 155837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 156837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall Diag(Loc, DiagID) 157837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << Msg 158837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << FixItHint::CreateReplacement(SourceRange(Loc), 159837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall getTokenSimpleSpelling(ExpectedTok)); 160837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall ConsumeAnyToken(); 161837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 162837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 163837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 164837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 165837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1664b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor const char *Spelling = 0; 167b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EndLoc.isValid() && 169b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { 1704b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // Show what code to insert to fix this problem. 1711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(EndLoc, DiagID) 1724b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor << Msg 173849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, Spelling); 1744b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } else 1754b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Tok, DiagID) << Msg; 1764b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (SkipToTok != tok::unknown) 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(SkipToTok); 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1829ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 1839ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { 1849ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); 1859ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 1869ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 1879ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 1889ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 1899ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 1909ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 1919ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 1929ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 1939ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 1949ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 1959ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 1969ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 1979ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 1989ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 1999ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 2009ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 206012cf464254804279efa84e21b4b493dde76c5f1Chris Lattner/// it (unless DontConsume is true). Because we cannot guarantee that the 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 210a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 212a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::SkipUntil(const tok::TokenKind *Toks, unsigned NumToks, 2143437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis bool StopAtSemi, bool DontConsume, 2153437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis bool StopAtCodeCompletion) { 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; i != NumToks; ++i) { 222000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DontConsume) { 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 231a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 236dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 237dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2383437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis if (!StopAtCodeCompletion) 2393437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis ConsumeToken(); 240dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 241dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2453437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2503437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 2535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2553437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 257a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 278a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 2815cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 2825cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 2835cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 2855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 28655edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 28755edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian case tok::at: 28855edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian return false; 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(); 388f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 389f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne if (getLang().OpenCL) { 390f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 391f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset(); 392f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); 393f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 394f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 395321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.RemovePragmaHandler("STDC", FPContractHandler.get()); 396321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(); 397f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 3985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 4015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 40331e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 40423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "A scope is already active?"); 40531e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 406c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 407c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 408c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor // Prime the lexer look-ahead. 409c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor ConsumeToken(); 410a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 411000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::eof) && 412f72617544287acf0281c3b1a733bcb22a02e6ca4Chris Lattner !getLang().CPlusPlus) // Empty source file is an extension in C 4135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::ext_empty_source_file); 414a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 41534870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 416a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 41734870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner if (getLang().ObjC1) { 418a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 419a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 420a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 421a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 422a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 423a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 42434870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 425662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 426e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Ident_instancetype = 0; 4277eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_final = 0; 4287eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_override = 0; 4291f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 430662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 43182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 43282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson if (getLang().AltiVec) { 43382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 43482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 43582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4360a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4370a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_introduced = 0; 4380a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_deprecated = 0; 4390a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_obsoleted = 0; 440b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Ident_unavailable = 0; 44128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 442b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = 0; 443b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 44428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = Ident__exception_info = Ident__abnormal_termination = 0; 44528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = Ident___exception_info = Ident___abnormal_termination = 0; 44628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = Ident_GetExceptionInfo = Ident_AbnormalTermination = 0; 44728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 44828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley if(getLang().Borland) { 44928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 45028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 45128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 45228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 45328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 45428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 45528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 45628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 45728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 45828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 45928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 46028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 46128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 46228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 46328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 46428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 46528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 46628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 46728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 46828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 4695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 4725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 473682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 47425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis DelayedCleanupPoint CleanupRAII(TopLevelDeclCleanupPool); 475b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 476b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis while (Tok.is(tok::annot_pragma_unused)) 477b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 478b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 479682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Result = DeclGroupPtrTy(); 4809299f3fa85796613cc787a2062c9562d07c8613eChris Lattner if (Tok.is(tok::eof)) { 4818387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 4828387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (getLang().DelayedTemplateParsing) 4838387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.SetLateTemplateParser(LateTemplateParserCallback, this); 4848387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 4859299f3fa85796613cc787a2062c9562d07c8613eChris Lattner Actions.ActOnEndOfTranslationUnit(); 4869299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 4879299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 488a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 4890b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 4907f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseCXX0XAttributes(attrs); 4917f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 492334d47e92e9f241576fdeb7477b69a03136ba854Francois Pichet 4937f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTranslationUnit: 4985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// translation-unit: [C99 6.9] 499a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// external-declaration 500a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// translation-unit external-declaration 5015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseTranslationUnit() { 5028935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Initialize(); 503a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 504682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy Res; 50589307ffaf8acf4d6fdffd72b607ca4fbcfdffc9dSteve Naroff while (!ParseTopLevelDecl(Res)) 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /*parse them all*/; 5071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 50806f548596beef4c0a227a45cba996497f99566c0Chris Lattner ExitScope(); 50923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "Scope imbalance!"); 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 51390b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 514c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 515c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 516c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 517a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 519c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 5205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 5255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 526c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 530a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration: 531a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 532a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 53345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 5347f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 5357f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 5367f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 53725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis DelayedCleanupPoint CleanupRAII(TopLevelDeclCleanupPool); 53836d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 5397d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 5407d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis if (PP.isCodeCompletionReached()) { 5417d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 5427d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 5437d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis } 5447d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 545d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *SingleDecl = 0; 5465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 5475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 5487fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok, getLang().CPlusPlus0x ? 5497fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_top_level_semi : diag::ext_top_level_semi) 5507fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith << FixItHint::CreateRemoval(Tok.getLocation()); 5511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 5535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Invoke action for top-level semicolon. 554682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 55590b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 55690b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 55790b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 558682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 55990b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 56090b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 561682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 562c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 563c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 564c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 56539146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 5667f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 567c3018153a11afe91849748a93d920040a571b76cChris Lattner } 568dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 5697f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 570bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 57121e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 57221e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 57321e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 574a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5753f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 5763f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 577dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 578682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 579682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 58021e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 581682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 582dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 58495ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian return ParseObjCAtDirectives(); 585682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 5865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 588682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (!getLang().ObjC1) { 589682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 590682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 591682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 592682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 593682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 594682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 595791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 59623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 597f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall ObjCImpDecl? Sema::PCC_ObjCImplementation 598f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 5997d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6007d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 601f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 6028f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 604adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 605adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 606511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 607c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 608bae35118fc5cea2da08567dbb9763af7f906dae2Chris Lattner // A function definition cannot start with a these keywords. 60997144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 61097144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 611c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 6127f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 61397144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 614d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 6157306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 6167306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 6177306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 6187306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (getLang().CPlusPlus && NextToken().is(tok::kw_template)) { 6197306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 6207306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 621d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 622c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 6237f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6247306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 6257306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 6267306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 6277306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 6287306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (getLang().CPlusPlus) { 6297306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 6307306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 6317306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 6327306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 6337306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 6347306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 6357f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6367306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 6377306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 6387306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 6397306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 6407306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 6417306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 6427306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 6437306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 6447306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor StmtVector Stmts(Actions); 6457f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 6467306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 647d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 648d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 649d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 65045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 65145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor if (getLang().CPlusPlus && NextToken().is(tok::kw_template)) { 65245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 65345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 65445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 6559324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith Diag(ExternLoc, getLang().CPlusPlus0x ? 6569324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::warn_cxx98_compat_extern_template : 6579324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); 65845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 65945f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 66045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor ParseExplicitInstantiation(ExternLoc, TemplateLoc, DeclEnd)); 66145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 66245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // FIXME: Detect C++ linkage specifications here? 663d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 6641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 665f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 666f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 667563a645de82231a55e221fe655b7188bf8369662Francois Pichet ParseMicrosoftIfExistsExternalDeclaration(); 668f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 669f986038beed360c031de8654cfba43a5d3184605Francois Pichet 67065030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor case tok::kw___import_module__: 6716aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return ParseModuleImport(); 6726aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 674d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 6767f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (DS) { 6777f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DS->takeAttributesFrom(attrs); 6787f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(*DS); 6797f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } else { 6807f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(attrs); 6817f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 684682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 685682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 686682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6891426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 6901426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 691e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 692e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 693e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (getLang().CPlusPlus && Tok.is(tok::equal)) { 694e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 695e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 696e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 697e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 698e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 6991426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 7001426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 7011426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 7021426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 7031426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 7041426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor (getLang().CPlusPlus && 7051426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 7061426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7071426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 7081426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7091426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 710004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 711075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 7125d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 7135d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 7145d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 715004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 716004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (!getLang().CPlusPlus && 717075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 718004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 719e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 720e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (getLang().CPlusPlus && Tok.is(tok::equal)) { 721e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 722e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 723e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 724004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 7255d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 7265d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 7271426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7281426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 731c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 732c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 7331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 736a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 737a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 738a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 739a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 741697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 742697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 745682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 7463acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::ParseDeclarationOrFunctionDefinition(ParsingDeclSpec &DS, 747bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt AccessSpecifier AS) { 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 7490efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 750a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 753000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 755d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 75654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 757682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 759a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 760246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 761246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 762246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 763000732226610650837478cba97843d19b75f648eChris Lattner if (getLang().ObjC2 && Tok.is(tok::at)) { 764dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 7651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 766246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 767246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 768cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 769682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 770cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 771d8ac05753dc4506224d445ff98399c01da3136e5John McCall 77254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 77354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 7740de2ae28c603322f05e2d9200c7d457c8b928983Fariborz Jahanian const char *PrevSpec = 0; 775fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 776fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) 777fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 7781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 779d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = 0; 780246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 781682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner TheDecl = ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 782682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner else 783682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner TheDecl = ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes()); 784682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 785dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 786a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 787c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 788c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 789c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 7903c6f6a7a1bb9969112617a26d2333bab2f6efd65Chris Lattner if (Tok.is(tok::string_literal) && getLang().CPlusPlus && 791c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 792682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 793d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 794682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 795682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 796c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 797d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8003acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 8017f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseDeclarationOrFunctionDefinition(ParsedAttributes &attrs, 8023acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 8033acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian ParsingDeclSpec DS(*this); 8047f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DS.takeAttributesFrom(attrs); 8059735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian // Must temporarily exit the objective-c container scope for 8069735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian // parsing c constructs and re-enter objc container scope 8079735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian // afterwards. 8089735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian ObjCDeclContextSwitch ObjCDC(*this); 8099735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian 8109735c5e60027b26a809df19677ff16a4d13f1321Fariborz Jahanian return ParseDeclarationOrFunctionDefinition(DS, AS); 8113acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 8123acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 817a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 818a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 819a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 820a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 8217ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 82223c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 82323c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 8247ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 825d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 827d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 828075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const ParsedTemplateInfo &TemplateInfo) { 82928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley // Poison the SEH identifiers so they are flagged as illegal in function bodies 83028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 831075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 832a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 833a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 834a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 835a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 8362a327d11a07dfbdf20910cebbae38910eda111fdChris Lattner if (getLang().ImplicitInt && D.getDeclSpec().isEmpty()) { 837a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 838fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 83931c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 84031c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 841fec54013fcd0eb72642741584ca04c1bc292bef8John McCall PrevSpec, DiagID); 842ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 843a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 844a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 848004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 851e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 8527ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 8537ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 854758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 855758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor (!getLang().CPlusPlus || 856cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && 857cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Tok.isNot(tok::equal)))) { 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::l_brace, true, true); 862a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 864000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 865d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 867a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8688387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 8698387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 8708387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (getLang().DelayedTemplateParsing && 8718387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind == ParsedTemplateInfo::Template) { 8728387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet MultiTemplateParamsArg TemplateParameterLists(Actions, 8738387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.TemplateParams->data(), 8748387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.TemplateParams->size()); 8758387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 8768387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 8778387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 8788387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 8792c712f50cd56eaf3662989b556e9c6b1e8fcd11aKaelyn Uhrain D.setFunctionDefinition(true); 8808387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 8812c712f50cd56eaf3662989b556e9c6b1e8fcd11aKaelyn Uhrain move(TemplateParameterLists)); 8828387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 8838387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 8848387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 8858387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (DP) { 8868387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplatedFunction *LPT = new LateParsedTemplatedFunction(this, DP); 8878387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 8888387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FnD = 0; 8898387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(DP)) 8908387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = FunTmpl->getTemplatedDecl(); 8918387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 8928387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = cast<FunctionDecl>(DP); 893d4a0caf78e7c18e7aca65fbfd799a6c024ff51fbFrancois Pichet Actions.CheckForFunctionRedefinition(FnD); 8948387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 8958387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplateMap[FnD] = LPT; 8968387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.MarkAsLateParsedTemplate(FnD); 8978387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(LPT->Toks); 8988387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } else { 8998387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet CachedTokens Toks; 9008387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(Toks); 9018387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 9028387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 9038387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 9048387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 905b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 9068935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 907a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 908b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 909b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 910d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 91123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 912f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall MultiTemplateParamsArg(Actions, 91352591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->data(), 91452591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor TemplateInfo.TemplateParams->size()), 91552591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor D) 91623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 917a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 91854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 91954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 92054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 92154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 92254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 92354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 92454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 925cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::equal)) { 926cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt assert(getLang().CPlusPlus && "Only C++ function definitions have '='"); 927cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ConsumeToken(); 928cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 929cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.ActOnFinishFunctionBody(Res, 0, false); 930cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 931cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt bool Delete = false; 932cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SourceLocation KWLoc; 933cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::kw_delete)) { 9347fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok, getLang().CPlusPlus0x ? 9357fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_deleted_function : 9367fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_deleted_function_accepted_as_extension); 937cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 938cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 939cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDeleted(Res, KWLoc); 940cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete = true; 941cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else if (Tok.is(tok::kw_default)) { 9427fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok, getLang().CPlusPlus0x ? 9437fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_defaulted_function : 9447fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_defaulted_function_accepted_as_extension); 945cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 946cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 947cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDefaulted(Res, KWLoc); 948cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 949cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 950cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 951cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 952cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::comma)) { 953cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 954cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt << Delete; 955cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SkipUntil(tok::semi); 956cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 957cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 958cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete ? "delete" : "default", tok::semi); 959cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 960cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 961cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt return Res; 962cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 963cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 964d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 965c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 966d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 9677ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 9687ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 969d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 9707ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 971d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 972d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 973d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 974c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 9759ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Actions.ActOnFinishFunctionBody(Res, 0); 976d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 977d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 978d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 979393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 9807ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 981c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 9855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 988075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 99004421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 99104421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 9923218c4bb3b5d7250f12420de6db7ef3e3f805a75Douglas Gregor ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope|Scope::DeclScope); 99304421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 9945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 997a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 9990b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 10005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1001a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1007000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 10115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1012a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 10175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.isThreadSpecified()) { 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getThreadSpecLoc(), 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1026a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 10335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 10347f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 1035a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 1037d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 103823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 10392bd42fadafddc8acf744b57a970bdc96a077c617Steve Naroff 1040a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 10495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (i == FTI.NumArgs) { 10501ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 10516898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 10525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1054a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { 10565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 105704421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner if (FTI.ArgInfo[i].Param) { 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 10591ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 10606898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 106204421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner FTI.ArgInfo[i].Param = Param; 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 1071000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 1073a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 10755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 1076a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 10785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.clear(); 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1081a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1082000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_parse_error); 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip to end of block or statement 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::semi, true); 1088000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1092a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 109423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 11035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 110460d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 11055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!isTokenStringLiteral()) { 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_string_literal); 110761364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1109a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 111060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Res(ParseStringLiteralExpression()); 1111effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl if (Res.isInvalid()) return move(Res); 1112a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Diagnose: wide string literal in 'asm' 1114a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1115effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl return move(Res); 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 112360d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1124000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1125dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1126a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11277a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1128841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1129841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1130841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1131841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1132841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1133849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 11347a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 11357a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 11367a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 11374a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 11384a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 11391ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 114061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1142a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 114360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1144a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1145ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Result.isInvalid()) { 1146ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SkipUntil(tok::r_paren, true, true); 1147ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 1148ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Tok.getLocation(); 1149ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl ConsumeAnyToken(); 1150ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } else { 11514a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Close the paren and get the location of the end bracket 11524a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1153ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 11544a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor *EndLoc = T.getCloseLocation(); 1155ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1156a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1157effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl return move(Result); 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 116025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// \brief Get the TemplateIdAnnotation from the token and put it in the 116125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// cleanup pool so that it gets destroyed when parsing the current top level 116225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// declaration is finished. 116325a767651d14db87aa03dd5fe3e011d877dd4100Argyrios KyrtzidisTemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { 116425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis assert(tok.is(tok::annot_template_id) && "Expected template-id token"); 116525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation * 116625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); 116725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TopLevelDeclCleanupPool.delayMemberFunc< TemplateIdAnnotation, 116825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis &TemplateIdAnnotation::Destroy>(Id); 116925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis return Id; 117025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis} 117125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis 1172eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1173eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1174eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1175eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1176eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1177eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1178eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1179eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 118044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 118144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 118244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 118344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 118444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1185b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 118644802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 118744802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 118844802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1189a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 11909ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 11911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 119255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 119355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1194fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrainbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { 11951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 1196ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope)) && 11977452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Cannot be a type or scope token!"); 11981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1199d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 1200d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1201d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1202d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1203d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 12041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 12051734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1206d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1207d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 12084147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), false, 12094147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 0, /*IsTypename*/true)) 12109ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 12119ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 121262ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (getLang().MicrosoftExt) 1213a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet Diag(Tok.getLocation(), diag::warn_expected_qualified_after_typename); 1214a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet else 1215a5d318ad4ad3a110b3abb34f765e69b76f7c0bcdFrancois Pichet Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 12169ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1217d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1218d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1219d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1220d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1221d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 122223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 12231a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1224d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 12251734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 122625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 12271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (TemplateId->Kind == TNK_Function_template) { 12281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 12291734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 12309ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 12311734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1232d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1233a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, 1234a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->getTemplateArgs(), 1235a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 1236a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor 1237a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 1238a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor /*FIXME:*/SourceLocation(), 1239a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1240a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1241a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 1242a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateArgsPtr, 1243a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 12441734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 12451734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 12461734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 12479ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 12481734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 12491734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 125039d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 12511734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1252b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 125339d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 12541734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 12551734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 12569ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1257d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1258d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1259ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 1260ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall bool wasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1261ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1262eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 12634bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis if (getLang().CPlusPlus) 1264b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 12659ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1266eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1267eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 1268fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain IdentifierInfo *CorrectedII = 0; 1269608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1270b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1271b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 12721e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 12739e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 12749e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 1275fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain /*NonTrivialTypeSourceInfo*/true, 1276fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain NeedType ? &CorrectedII : NULL)) { 1277fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain // A FixIt was applied as a result of typo correction 1278fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain if (CorrectedII) 1279fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain Tok.setIdentifierInfo(CorrectedII); 1280608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1281608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1282b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1283b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1284608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1285608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1286608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 12871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1288608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1289608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1290608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 12919ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 12921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 129339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 129439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (!getLang().CPlusPlus) { 1295608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1296608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 12971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1298608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1299eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 13001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 130139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 130255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 13037532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1304014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1305014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 13061fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 13071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 13087c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 13097c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1310b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1311b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 13127c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1313ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1314ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1315059101f922de6eb765601459925f4c8914420b23Douglas Gregor if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateName)) { 1316c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1317c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1318c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 13199ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1320c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1321ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 132255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1323d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 132439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 132539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 132639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 132739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 13281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1329eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 133039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 133125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1332c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 133339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 133439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 133539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 133639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1337059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 13389ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 133939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 134039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1341d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 13426ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 13439ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 13441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13456ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 13466ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 13476ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 13486ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 13496ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 13506ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 13516ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 13526ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1353c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 13546ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 13556ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 1356ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // In case the tokens were cached, have Preprocessor replace them 1357ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // with the annotation token. We don't need to do this if we've 1358ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // just reverted back to the state we were in before being called. 1359ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall if (!wasScopeAnnotation) 1360ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall PP.AnnotateCachedTokens(Tok); 13619ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1362eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1363eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1364eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 136539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 1366c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner/// true if the token was annotated or there was an error that could not be 1367c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner/// recovered from. 13681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 136955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 137055a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1371495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 13724bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 13736ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 13743b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 13753b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)))&& 13767452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Cannot be a type or scope token!"); 1377eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 13784bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1379b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 13809ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1381edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 13829ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1383eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 13846ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // Push the current token back into the token stream (or revert it if it is 13856ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // cached) and use an annotation scope token for current token. 13866ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (PP.isBacktrackEnabled()) 13876ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.RevertCachedTokens(1); 13886ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner else 13896ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.EnterToken(Tok); 13906ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setKind(tok::annot_cxxscope); 1391c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 13926ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner Tok.setAnnotationRange(SS.getRange()); 13936ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner 13946ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // In case the tokens were cached, have Preprocessor replace them with the 13956ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // annotation token. 13966ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner PP.AnnotateCachedTokens(Tok); 13979ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1398eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 13996c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1400a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidisbool Parser::isTokenEqualOrMistypedEqualEqual(unsigned DiagID) { 1401a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis if (Tok.is(tok::equalequal)) { 1402a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis // We have '==' in a context that we would expect a '='. 1403a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis // The user probably made a typo, intending to type '='. Emit diagnostic, 1404a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis // fixit hint to turn '==' -> '=' and continue as if the user typed '='. 1405a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis Diag(Tok, DiagID) 1406a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), 1407a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis getTokenSimpleSpelling(tok::equal)); 1408a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis return true; 1409a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis } 1410a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 1411a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis return Tok.is(tok::equal); 1412a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1413a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 14147d100872341f233c81e1d7b72b40457e62c36862Argyrios KyrtzidisSourceLocation Parser::handleUnexpectedCodeCompletionToken() { 14157d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis assert(Tok.is(tok::code_completion)); 14167d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis PrevTokLocation = Tok.getLocation(); 14177d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 141823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1419dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1420f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 14217d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 14227d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1423dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1424dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1425dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1426f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 14277d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 14287d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1429dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1430dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1431dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1432f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 14337d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 14347d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1435dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1436dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 14376c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 14386c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 14396c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 14406c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 14416c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 14426c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1443f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1444f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1445f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1446f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1447f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1448f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1449f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1450f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1451f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1452f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 14531fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 14541fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1455f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1456f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1457f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1458f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1459f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1460f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1461f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1462f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1463f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1464f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1465f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1466f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 14671fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 146855817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 146955817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 147055817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 147155817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1472f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1473f986038beed360c031de8654cfba43a5d3184605Francois Pichetbool Parser::ParseMicrosoftIfExistsCondition(bool& Result) { 1474f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 1475f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 1476f986038beed360c031de8654cfba43a5d3184605Francois Pichet Token Condition = Tok; 1477f986038beed360c031de8654cfba43a5d3184605Francois Pichet SourceLocation IfExistsLoc = ConsumeToken(); 1478f986038beed360c031de8654cfba43a5d3184605Francois Pichet 14794a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 14804a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 1481f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lparen_after) << IfExistsLoc; 1482f986038beed360c031de8654cfba43a5d3184605Francois Pichet SkipUntil(tok::semi); 1483f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1484f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1485f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1486f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 1487f986038beed360c031de8654cfba43a5d3184605Francois Pichet CXXScopeSpec SS; 1488f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); 1489f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1490f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 1491f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (SS.isInvalid()) { 1492f986038beed360c031de8654cfba43a5d3184605Francois Pichet SkipUntil(tok::semi); 1493f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1494f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1495f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1496f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse the unqualified-id. 1497f986038beed360c031de8654cfba43a5d3184605Francois Pichet UnqualifiedId Name; 1498f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseUnqualifiedId(SS, false, true, true, ParsedType(), Name)) { 1499f986038beed360c031de8654cfba43a5d3184605Francois Pichet SkipUntil(tok::semi); 1500f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1501f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1502f986038beed360c031de8654cfba43a5d3184605Francois Pichet 15034a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 15044a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 1505f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1506f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1507f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 1508f986038beed360c031de8654cfba43a5d3184605Francois Pichet bool Exist = Actions.CheckMicrosoftIfExistsSymbol(SS, Name); 1509f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1510f986038beed360c031de8654cfba43a5d3184605Francois Pichet Result = ((Condition.is(tok::kw___if_exists) && Exist) || 1511f986038beed360c031de8654cfba43a5d3184605Francois Pichet (Condition.is(tok::kw___if_not_exists) && !Exist)); 1512f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1513f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 1514f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1515f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1516563a645de82231a55e221fe655b7188bf8369662Francois Pichetvoid Parser::ParseMicrosoftIfExistsExternalDeclaration() { 1517f986038beed360c031de8654cfba43a5d3184605Francois Pichet bool Result; 1518f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 1519f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1520f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1521f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Tok.isNot(tok::l_brace)) { 1522f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lbrace); 1523f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1524f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1525f986038beed360c031de8654cfba43a5d3184605Francois Pichet ConsumeBrace(); 1526f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1527f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Condition is false skip all inside the {}. 1528f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (!Result) { 1529f986038beed360c031de8654cfba43a5d3184605Francois Pichet SkipUntil(tok::r_brace, false); 1530f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1531f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1532f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1533f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Condition is true, parse the declaration. 1534f986038beed360c031de8654cfba43a5d3184605Francois Pichet while (Tok.isNot(tok::r_brace)) { 1535f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 1536f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseCXX0XAttributes(attrs); 1537f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 1538f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 1539f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 1540f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 1541f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1542f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1543f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Tok.isNot(tok::r_brace)) { 1544f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_rbrace); 1545f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1546f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1547f986038beed360c031de8654cfba43a5d3184605Francois Pichet ConsumeBrace(); 1548f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 15496aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 15506aa52ec6b969faabf3764baf79d89810b8249a7eDouglas GregorParser::DeclGroupPtrTy Parser::ParseModuleImport() { 155165030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor assert(Tok.is(tok::kw___import_module__) && 155265030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor "Improper start to module import"); 15536aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ImportLoc = ConsumeToken(); 15546aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 15556aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor // Parse the module name. 15566aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (!Tok.is(tok::identifier)) { 15576aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor Diag(Tok, diag::err_module_expected_ident); 15586aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SkipUntil(tok::semi); 15596aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 15606aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor } 15616aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 15626aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor IdentifierInfo &ModuleName = *Tok.getIdentifierInfo(); 15636aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ModuleNameLoc = ConsumeToken(); 15646aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor DeclResult Import = Actions.ActOnModuleImport(ImportLoc, ModuleName, ModuleNameLoc); 15656aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor ExpectAndConsumeSemi(diag::err_module_expected_semi); 15666aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (Import.isInvalid()) 15676aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 15686aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 15696aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return Actions.ConvertDeclToDeclGroup(Import.get()); 15706aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor} 15714a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 15724a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregorbool Parser::BalancedDelimiterTracker::consumeOpen() { 15734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Try to consume the token we are holding 15744a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (P.Tok.is(Kind)) { 15754a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor P.QuantityTracker.push(Kind); 15764a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Cleanup = true; 15774a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (P.QuantityTracker.getDepth(Kind) < MaxDepth) { 15784a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.ConsumeAnyToken(); 15794a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return false; 15804a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } else { 15814a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor P.Diag(P.Tok, diag::err_parser_impl_limit_overflow); 15824a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor P.SkipUntil(tok::eof); 15834a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 15844a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 15854a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 15864a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 15874a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 15884a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregorbool Parser::BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, 15894a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor const char *Msg, 15904a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor tok::TokenKind SkipToToc ) { 15914a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.Tok.getLocation(); 15924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (!P.ExpectAndConsume(Kind, DiagID, Msg, SkipToToc)) { 15934a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor P.QuantityTracker.push(Kind); 15944a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Cleanup = true; 15954a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (P.QuantityTracker.getDepth(Kind) < MaxDepth) { 15964a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return false; 15974a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } else { 15984a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor P.Diag(P.Tok, diag::err_parser_impl_limit_overflow); 15994a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor P.SkipUntil(tok::eof); 16004a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 16014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 16024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 16034a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 16044a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 16054a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregorbool Parser::BalancedDelimiterTracker::consumeClose() { 16064a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (P.Tok.is(Close)) { 16074a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LClose = P.ConsumeAnyToken(); 16084a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (Cleanup) 16094a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor P.QuantityTracker.pop(Kind); 16104a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 16114a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Cleanup = false; 16124a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return false; 16134a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } else { 16144a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor const char *LHSName = "unknown"; 16154a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor diag::kind DID = diag::err_parse_error; 16164a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor switch (Close) { 16174a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor default: break; 16184a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; 16194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; 16204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; 16214a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor case tok::greater: LHSName = "<"; DID = diag::err_expected_greater; break; 16224a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor case tok::greatergreatergreater: 16234a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LHSName = "<<<"; DID = diag::err_expected_ggg; break; 16244a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 16254a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor P.Diag(P.Tok, DID); 16264a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor P.Diag(LOpen, diag::note_matching) << LHSName; 16274a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (P.SkipUntil(Close)) 16284a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LClose = P.Tok.getLocation(); 16294a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 16304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 16314a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 1632