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" 1555fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "RAIIObjectsForParser.h" 1655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/ASTConsumer.h" 17651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/AST/ASTContext.h" 1855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/DeclTemplate.h" 19500d3297d2a21edeac4d46cbcbe21bc2352c2a28Chris Lattner#include "clang/Parse/ParseDiagnostic.h" 2019510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 2119510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 2255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Scope.h" 230102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner#include "llvm/Support/raw_ostream.h" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 2769b5e952c56f95673064ad1815a240e0fb595865Benjamin Kramernamespace { 28aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// \brief A comment handler that passes comments found by the preprocessor 29aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// to the parser action. 30aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkoclass ActionCommentHandler : public CommentHandler { 31aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko Sema &S; 32aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 33aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkopublic: 34aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko explicit ActionCommentHandler(Sema &S) : S(S) { } 35aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 36651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool HandleComment(Preprocessor &PP, SourceRange Comment) override { 37aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko S.ActOnComment(Comment); 38aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko return false; 39aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko } 40aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko}; 4169b5e952c56f95673064ad1815a240e0fb595865Benjamin Kramer} // end anonymous namespace 42aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 43b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas GregorIdentifierInfo *Parser::getSEHExceptKeyword() { 44b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor // __except is accepted as a (contextual) keyword 454e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Ident__except && (getLangOpts().MicrosoftExt || getLangOpts().Borland)) 46b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = PP.getIdentifierInfo("__except"); 47b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 48b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor return Ident__except; 49b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor} 50b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 5125893e0930c1241c3fdafc6f1b8661443bb19692Argyrios KyrtzidisParser::Parser(Preprocessor &pp, Sema &actions, bool skipFunctionBodies) 52614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 530fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 546a91d385618ea4d28236c496f540a26877c95525Erik Verbruggen InMessageExpression(false), TemplateParameterDepth(0), 5525893e0930c1241c3fdafc6f1b8661443bb19692Argyrios Kyrtzidis ParsingInObjCContainer(false) { 5625893e0930c1241c3fdafc6f1b8661443bb19692Argyrios Kyrtzidis SkipFunctionBodies = pp.isCodeCompletionEnabled() || skipFunctionBodies; 572b970e9d70768802984f2cf1885e73643c17e0c2Chris Lattner Tok.startToken(); 585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Actions.CurScope = nullptr; 609e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines CurParsedObjCImpl = nullptr; 63fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 64fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 65fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 66651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines initializePragmaHandlers(); 677adf79a620cb7fbde0608e21727425930676b7dbReid Kleckner 68056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko CommentSemaHandler.reset(new ActionCommentHandler(actions)); 69056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.addCommentHandler(CommentSemaHandler.get()); 70aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 71f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 743cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 7533e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 761ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 771ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 783cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 791ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 824b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 834b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 844b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 854b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 8670517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko/// \param DK The kind of diagnostic to emit. 874b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 884b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 894b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 90b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 91b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 924b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 934b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 944b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 954b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 964b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 99849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 100849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1014b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1024b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 103837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 104837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 1054b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith case tok::semi: 1064b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith return Tok.is(tok::colon) || Tok.is(tok::comma); // : or , for ; 107837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 108837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 109837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 110837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 112651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const char *Msg) { 113dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 117a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 118837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 119837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 120837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 121651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines { 122651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DiagnosticBuilder DB = Diag(Loc, DiagID); 123651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << FixItHint::CreateReplacement( 124651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SourceRange(Loc), tok::getPunctuatorSpelling(ExpectedTok)); 125651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DiagID == diag::err_expected) 126651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << ExpectedTok; 127651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else if (DiagID == diag::err_expected_after) 128651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << Msg << ExpectedTok; 129651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else 130651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << Msg; 131651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 132837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 133837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 134651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ConsumeAnyToken(); 135837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 136837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 137837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 138b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1396bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const char *Spelling = nullptr; 140651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (EndLoc.isValid()) 141651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Spelling = tok::getPunctuatorSpelling(ExpectedTok); 142651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 143651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DiagnosticBuilder DB = 144651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Spelling 145651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ? Diag(EndLoc, DiagID) << FixItHint::CreateInsertion(EndLoc, Spelling) 146651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines : Diag(Tok, DiagID); 147651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DiagID == diag::err_expected) 148651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << ExpectedTok; 149651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else if (DiagID == diag::err_expected_after) 150651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << Msg << ExpectedTok; 151651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines else 152651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DB << Msg; 1534b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1579ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 158651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TryConsumeToken(tok::semi)) 159651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 160651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 161651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Tok.is(tok::code_completion)) { 162651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines handleUnexpectedCodeCompletionToken(); 1639ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 1649ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 1659ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 1669ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 1679ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 1689ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 1699ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 1709ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 1719ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 1729ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 1739ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 1749ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 1759ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 1769ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 1779ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 1789ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 179eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smithvoid Parser::ConsumeExtraSemi(ExtraSemiKind Kind, unsigned TST) { 1804b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu if (!Tok.is(tok::semi)) return; 1814b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 182eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith bool HadMultipleSemis = false; 1834b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation StartLoc = Tok.getLocation(); 1844b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation EndLoc = Tok.getLocation(); 1854b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 1864b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 1874b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu while ((Tok.is(tok::semi) && !Tok.isAtStartOfLine())) { 188eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith HadMultipleSemis = true; 1894b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu EndLoc = Tok.getLocation(); 1904b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 1914b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 1924b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 193eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // C++11 allows extra semicolons at namespace scope, but not in any of the 194eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // other contexts. 195eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind == OutsideFunction && getLangOpts().CPlusPlus) { 19680ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11) 197eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_cxx98_compat_top_level_semi) 198eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 199eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 200eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi_cxx11) 201eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2024b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu return; 2034b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2044b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 205eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind != AfterMemberFunctionDefinition || HadMultipleSemis) 206eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi) 207651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << Kind << DeclSpec::getSpecifierName((DeclSpec::TST)TST, 208651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Actions.getASTContext().getPrintingPolicy()) 209eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 210eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 211eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // A single semicolon is valid after a member function definition. 212eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_extra_semi_after_mem_fn_def) 213eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2144b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu} 2154b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 220f2b87508c744d6581200fa6521f0924b7f3c0e9fBenjamin Kramerstatic bool HasFlagsSet(Parser::SkipUntilFlags L, Parser::SkipUntilFlags R) { 2218fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev return (static_cast<unsigned>(L) & static_cast<unsigned>(R)) != 0; 2228fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev} 2238fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 2258fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev/// it (unless no flag StopBeforeMatch). Because we cannot guarantee that the 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 229a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 231a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 2328fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataevbool Parser::SkipUntil(ArrayRef<tok::TokenKind> Toks, SkipUntilFlags Flags) { 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 238eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie for (unsigned i = 0, NumToks = Toks.size(); i != NumToks; ++i) { 239000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2408fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopBeforeMatch)) { 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 248a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 249d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola // Important special case: The caller has given up and just wants us to 250d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola // skip the rest of the file. Do this without recursing, since we can 251d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola // get here precisely because the caller detected too much recursion. 2528fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (Toks.size() == 1 && Toks[0] == tok::eof && 2538fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev !HasFlagsSet(Flags, StopAtSemi) && 2548fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev !HasFlagsSet(Flags, StopAtCodeCompletion)) { 255651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines while (Tok.isNot(tok::eof)) 256d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola ConsumeAnyToken(); 257d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola return true; 258d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola } 259d66bf94f527c6bd24089615ee3a0b74a2ec35310Rafael Espindola 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 264651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 265651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_pragma_openmp_end: 266651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Stop before an OpenMP pragma boundary. 267651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_begin: 268651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_end: 269651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_include: 270651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Stop before we change submodules. They generally indicate a "good" 271651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // place to pick up parsing again (except in the special case where 272651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // we're trying to skip to EOF). 273651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 274651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 275dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2768fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (!HasFlagsSet(Flags, StopAtCodeCompletion)) 277651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines handleUnexpectedCodeCompletionToken(); 278dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 279dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2838fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopAtCodeCompletion)) 2848fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtCodeCompletion); 2858fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev else 2868fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren); 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2918fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopAtCodeCompletion)) 2928fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_square, StopAtCodeCompletion); 2938fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev else 2948fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_square); 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2998fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopAtCodeCompletion)) 3008fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_brace, StopAtCodeCompletion); 3018fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev else 3028fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_brace); 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 304a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 325a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 3285cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 3295cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 3305cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 33355edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 3358fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (HasFlagsSet(Flags, StopAtSemi)) 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 3405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 3415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 344a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 3539e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 3549e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 35523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 35623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 3589c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 3635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 36423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 36690ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 36790ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 3686bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 369a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 37023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 37123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 372a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3739e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 3749e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3769e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 3775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3797a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Set the flags for the current scope to ScopeFlags. If ManageFlags is false, 3807a614d8380297fcd2bc23986241905d97222948cRichard Smith/// this object does nothing. 3817a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::ParseScopeFlags(Parser *Self, unsigned ScopeFlags, 3827a614d8380297fcd2bc23986241905d97222948cRichard Smith bool ManageFlags) 3836bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines : CurScope(ManageFlags ? Self->getCurScope() : nullptr) { 3847a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) { 3857a614d8380297fcd2bc23986241905d97222948cRichard Smith OldFlags = CurScope->getFlags(); 3867a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(ScopeFlags); 3877a614d8380297fcd2bc23986241905d97222948cRichard Smith } 3887a614d8380297fcd2bc23986241905d97222948cRichard Smith} 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3907a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Restore the flags for the current scope to what they were before this 3917a614d8380297fcd2bc23986241905d97222948cRichard Smith/// object overrode them. 3927a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::~ParseScopeFlags() { 3937a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) 3947a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(OldFlags); 3957a614d8380297fcd2bc23986241905d97222948cRichard Smith} 3965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 40423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 4056bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Actions.CurScope = nullptr; 4066bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 4075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 4089e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 4099e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 410fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 411651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines resetPragmaHandlers(); 412aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 413056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.removeCommentHandler(CommentSemaHandler.get()); 414aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 415f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 41613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 41713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 42331e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 4246bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines assert(getCurScope() == nullptr && "A scope is already active?"); 42531e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 426c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 427c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 42834870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 429a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 4304e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1) { 431a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 432a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 433a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 434a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 435a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 436a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 43734870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 438662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 4396bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_instancetype = nullptr; 4406bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_final = nullptr; 4416bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_sealed = nullptr; 4426bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_override = nullptr; 4431f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 444662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 44582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 4464e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().AltiVec) { 44782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 44882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 4493e3d20b2b26a885fcae855bb0b02dbc42d7c5739Bill Schmidt Ident_bool = &PP.getIdentifierTable().get("bool"); 45082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4510a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4526bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_introduced = nullptr; 4536bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_deprecated = nullptr; 4546bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_obsoleted = nullptr; 4556bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_unavailable = nullptr; 45628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 4576bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident__except = nullptr; 4586bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 4596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident__exception_code = Ident__exception_info = nullptr; 4606bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident__abnormal_termination = Ident___exception_code = nullptr; 4616bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident___exception_info = Ident___abnormal_termination = nullptr; 4626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_GetExceptionCode = Ident_GetExceptionInfo = nullptr; 4636bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Ident_AbnormalTermination = nullptr; 46428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 4654e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if(getLangOpts().Borland) { 46628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 46728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 46828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 46928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 47028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 47128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 47228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 47328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 47428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 47528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 47628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 47728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 47828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 47928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 48028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 48128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 48228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 48328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 48428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 48528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 486c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor 487c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor Actions.Initialize(); 488c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor 489c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor // Prime the lexer look-ahead. 490c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor ConsumeToken(); 4915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 49313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramernamespace { 49413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// \brief RAIIObject to destroy the contents of a SmallVector of 49513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// TemplateIdAnnotation pointers and clear the vector. 49613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer class DestroyTemplateIdAnnotationsRAIIObj { 49713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer SmallVectorImpl<TemplateIdAnnotation *> &Container; 49813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer public: 49913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj(SmallVectorImpl<TemplateIdAnnotation *> 50013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer &Container) 50113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer : Container(Container) {} 50213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 50313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer ~DestroyTemplateIdAnnotationsRAIIObj() { 50413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = 50513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.begin(), E = Container.end(); 50613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer I != E; ++I) 50713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer (*I)->Destroy(); 50813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.clear(); 50913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer } 51013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer }; 51113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer} 51213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 5135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 5145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 515682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 51613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 517b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 518651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Skip over the EOF token, flagging end of previous input for incremental 519e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // processing 520e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (PP.isIncrementalProcessingEnabled() && Tok.is(tok::eof)) 521e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann ConsumeToken(); 522e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 52326297f57634994b4ae47a0774c372d6944265bb2Richard Smith Result = DeclGroupPtrTy(); 52426297f57634994b4ae47a0774c372d6944265bb2Richard Smith switch (Tok.getKind()) { 52526297f57634994b4ae47a0774c372d6944265bb2Richard Smith case tok::annot_pragma_unused: 526b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 52726297f57634994b4ae47a0774c372d6944265bb2Richard Smith return false; 528b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 52926297f57634994b4ae47a0774c372d6944265bb2Richard Smith case tok::annot_module_include: 53026297f57634994b4ae47a0774c372d6944265bb2Richard Smith Actions.ActOnModuleInclude(Tok.getLocation(), 53126297f57634994b4ae47a0774c372d6944265bb2Richard Smith reinterpret_cast<Module *>( 53226297f57634994b4ae47a0774c372d6944265bb2Richard Smith Tok.getAnnotationValue())); 53326297f57634994b4ae47a0774c372d6944265bb2Richard Smith ConsumeToken(); 53426297f57634994b4ae47a0774c372d6944265bb2Richard Smith return false; 53526297f57634994b4ae47a0774c372d6944265bb2Richard Smith 536651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_begin: 537651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_module_end: 538651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // FIXME: Update visibility based on the submodule we're in. 539651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ConsumeToken(); 540651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 541651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 54226297f57634994b4ae47a0774c372d6944265bb2Richard Smith case tok::eof: 5438387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 5444e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing) 5458387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.SetLateTemplateParser(LateTemplateParserCallback, this); 546e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (!PP.isIncrementalProcessingEnabled()) 547e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann Actions.ActOnEndOfTranslationUnit(); 548e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann //else don't tell Sema that we ended parsing: more input might come. 5499299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 55026297f57634994b4ae47a0774c372d6944265bb2Richard Smith 55126297f57634994b4ae47a0774c372d6944265bb2Richard Smith default: 55226297f57634994b4ae47a0774c372d6944265bb2Richard Smith break; 5539299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 554a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5550b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 5564e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 5577f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 558e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 5597f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 56490b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 565c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 566c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 567c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 5685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 569c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 5715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 5725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 576c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 5775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 5796b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] empty-declaration 5806b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] attribute-declaration 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 5826b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] empty-declaration: 583a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 584a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 58545f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 5867f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 5877f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 5887f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 58913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 59036d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 5917d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 5927d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis if (PP.isCodeCompletionReached()) { 5937d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 5947d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 5957d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis } 5967d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 5976bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Decl *SingleDecl = nullptr; 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 599426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola case tok::annot_pragma_vis: 600426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola HandlePragmaVisibility(); 601426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola return DeclGroupPtrTy(); 602aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman case tok::annot_pragma_pack: 603aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman HandlePragmaPack(); 604aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman return DeclGroupPtrTy(); 6059595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_msstruct: 6069595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaMSStruct(); 6079595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6089595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_align: 6099595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaAlign(); 6109595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6119595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weak: 6129595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeak(); 6139595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6149595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weakalias: 6159595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeakAlias(); 6169595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6179595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_redefine_extname: 6189595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaRedefineExtname(); 6199595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6209595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_fp_contract: 6219595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaFPContract(); 6229595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6239595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_opencl_extension: 6249595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaOpenCLExtension(); 6259595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 626c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev case tok::annot_pragma_openmp: 627c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev ParseOpenMPDeclarativeDirective(); 628c640058aa7f224a71ce3b1d2601d84e1b57f82d3Alexey Bataev return DeclGroupPtrTy(); 629651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_pragma_ms_pointers_to_members: 630651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines HandlePragmaMSPointersToMembers(); 631651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return DeclGroupPtrTy(); 632651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::annot_pragma_ms_vtordisp: 633651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines HandlePragmaMSVtorDisp(); 634651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return DeclGroupPtrTy(); 6356bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines case tok::annot_pragma_ms_pragma: 6366bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines HandlePragmaMSPragma(); 6376bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return DeclGroupPtrTy(); 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 6396b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // Either a C++11 empty-declaration or attribute-declaration. 640684aa73192d92850a926870be62a1787eb5b7ed9Michael Han SingleDecl = Actions.ActOnEmptyDeclaration(getCurScope(), 641684aa73192d92850a926870be62a1787eb5b7ed9Michael Han attrs.getList(), 642684aa73192d92850a926870be62a1787eb5b7ed9Michael Han Tok.getLocation()); 6434b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeExtraSemi(OutsideFunction); 644684aa73192d92850a926870be62a1787eb5b7ed9Michael Han break; 64590b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 646883692ebd421c40b44e2c2665e5f54dade5621bcNico Weber Diag(Tok, diag::err_extraneous_closing_brace); 64790b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 648682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 64990b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 65090b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 651682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 652c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 653c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 654c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 65539146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 6567f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 657c3018153a11afe91849748a93d920040a571b76cChris Lattner } 658dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 6597f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 660bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 66121e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 66221e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 66321e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 664a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 665651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ExpectAndConsume(tok::semi, diag::err_expected_after, 6663f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 667dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 668682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 669682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 67021e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 671682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 672dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 67495ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian return ParseObjCAtDirectives(); 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 6774e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().ObjC1) { 678682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 679682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 680682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 681682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 682682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 683682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 684791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 68523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 686849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl? Sema::PCC_ObjCImplementation 687f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 6887d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6897d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 690f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 6918f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 693adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 694adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 695511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 696c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 69726d6023cb0d343bf8fc8836f97d39709bbd4afa0Chad Rosier // A function definition cannot start with any of these keywords. 69897144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 69997144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 7004e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7017f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 70297144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 703d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 7047306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 7057306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 7067306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7074e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 7087306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7097306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 710d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 7114e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7127f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7137306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7147306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 7157306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7167306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 7174e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 7187306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 7197306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7207306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 7217306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 7227306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7234e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7247f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7257306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7267306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7277306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 7287306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7297306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 7307306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7317306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 7327306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7334e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7347f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7357306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 736d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 737d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 738d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 73945f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 7404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 74145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 74245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 74345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 74480ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith Diag(ExternLoc, getLangOpts().CPlusPlus11 ? 7459324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::warn_cxx98_compat_extern_template : 7469324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); 74745f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 74845f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 7499241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ParseExplicitInstantiation(Declarator::FileContext, 7509241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ExternLoc, TemplateLoc, DeclEnd)); 75145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 752d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 7531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 754f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 755f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 756563a645de82231a55e221fe655b7188bf8369662Francois Pichet ParseMicrosoftIfExistsExternalDeclaration(); 757f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 7586aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 760d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 76220af49a7c5bdb6cca5f4d6586106ef1ce8579311Rafael Espindola return ParseDeclarationOrFunctionDefinition(attrs, DS); 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 765682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 766682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 767682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7701426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7711426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 772e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 773e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 7744e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 775e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 776e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 777e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 778e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 7796c89eafc90f5c51a0bf185a993961170aee530c2Fariborz Jahanian 7801426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 7811426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 7821426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 7831426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 7841426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 7854e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().CPlusPlus && 78639700f81c5b42e6be93be10275602915f872fc86Fariborz Jahanian Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 7871426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7881426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 7891426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7901426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 791004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 792075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 7935d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 7945d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 7955d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 796004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 7974e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus && 798075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 799004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 800e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 8014e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 802e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 803e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 804e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 805004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 8065d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 8075d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 8081426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 8091426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 8105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 812c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 813c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 8141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 817a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 818a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 819a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 820a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 822697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 823697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 826682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 8272edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclOrFunctionDefInternal(ParsedAttributesWithRange &attrs, 8282edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec &DS, 8292edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt AccessSpecifier AS) { 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 8310efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 832a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 833f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling // If we had a free-standing type definition with a missing semicolon, we 834f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling // may get this far before the problem becomes obvious. 835f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling if (DS.hasTagDefinition() && 836f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling DiagnoseMissingSemiAfterTagDefinition(DS, AS, DSC_top_level)) 837f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling return DeclGroupPtrTy(); 838f0cc19f43d5e05dbd22d00faca8c093b7005be3fBill Wendling 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 841000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 8422edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 844d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 84554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 846682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 848a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8492edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt DS.takeAttributesFrom(attrs); 8502edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 851246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 852246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 853246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 8544e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC2 && Tok.is(tok::at)) { 855dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 8561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 857246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 858246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 859cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 860682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 861cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 862d8ac05753dc4506224d445ff98399c01da3136e5John McCall 86354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 86454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 8656bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const char *PrevSpec = nullptr; 866fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 867651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID, 868651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Actions.getASTContext().getPrintingPolicy())) 869fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 8701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 871246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 872bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 873bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 874bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return Actions.ConvertDeclToDeclGroup( 875bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes())); 876dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 877a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 878c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 879c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 880c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 881651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (getLangOpts().CPlusPlus && isTokenStringLiteral() && 882c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 883682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 884d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 885682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 886682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 887c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 888d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8913acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 8922edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclarationOrFunctionDefinition(ParsedAttributesWithRange &attrs, 8932edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec *DS, 8943acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 8952edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt if (DS) { 8962edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, *DS, AS); 8972edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } else { 8982edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec PDS(*this); 8992edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // Must temporarily exit the objective-c container scope for 9002edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // parsing c constructs and re-enter objc container scope 9012edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // afterwards. 9022edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ObjCDeclContextSwitch ObjCDC(*this); 9032edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 9042edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, PDS, AS); 9052edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } 9063acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 9073acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 912a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 913a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 914a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 915a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 9167ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 91723c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 91823c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 9197ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 920d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 922d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 923c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins const ParsedTemplateInfo &TemplateInfo, 924c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins LateParsedAttrList *LateParsedAttrs) { 92528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley // Poison the SEH identifiers so they are flagged as illegal in function bodies 92628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 927075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 928a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 929a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 930a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 931a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 9324e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ImplicitInt && D.getDeclSpec().isEmpty()) { 933a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 934fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 935651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const PrintingPolicy &Policy = Actions.getASTContext().getPrintingPolicy(); 93631c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 93731c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 938651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines PrevSpec, DiagID, 939651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Policy); 940ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 941a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 942a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 946004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9497ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 9507ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 951758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 9524e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!getLangOpts().CPlusPlus || 953cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && 954cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Tok.isNot(tok::equal)))) { 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 9588fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::l_brace, StopAtSemi | StopBeforeMatch); 959a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 961000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 9626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 964a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 965c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Check to make sure that any normal attributes are allowed to be on 966c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // a definition. Late parsed attributes are checked at the end. 967c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (Tok.isNot(tok::equal)) { 968c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins AttributeList *DtorAttrs = D.getAttributes(); 969c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins while (DtorAttrs) { 970651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DtorAttrs->isKnownToGCC() && 971cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith !DtorAttrs->isCXX11Attribute()) { 972c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins Diag(DtorAttrs->getLoc(), diag::warn_attribute_on_function_definition) 973651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << DtorAttrs->getName(); 974c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 975c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins DtorAttrs = DtorAttrs->getNext(); 976c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 977c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 978c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 9798387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 9808387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 981645526c3e42170e356f792b1bc0ac2acb65c26c4David Majnemer if (getLangOpts().DelayedTemplateParsing && Tok.isNot(tok::equal) && 982645526c3e42170e356f792b1bc0ac2acb65c26c4David Majnemer TemplateInfo.Kind == ParsedTemplateInfo::Template && 983651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Actions.canDelayFunctionBody(D)) { 9845354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg TemplateParameterLists(*TemplateInfo.TemplateParams); 9858387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9868387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 9878387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 9888387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 98945fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(FDK_Definition); 9908387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 9913fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer TemplateParameterLists); 9928387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 9938387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 9948387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 995ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith CachedTokens Toks; 996ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith LexTemplateFunctionForLateParsing(Toks); 9978387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 998ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith if (DP) { 999651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FunctionDecl *FnD = DP->getAsFunction(); 1000ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith Actions.CheckForFunctionRedefinition(FnD); 1001ac32d9044b9c1e7492cef929a322d23ce899d276Richard Smith Actions.MarkAsLateParsedTemplate(FnD, DP, Toks); 10028387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10038387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 10048387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 10052eb362b50f34296c39d5ec3e5e1bd6a2c9a5877eFariborz Jahanian else if (CurParsedObjCImpl && 10069e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian !TemplateInfo.TemplateParams && 10079e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian (Tok.is(tok::l_brace) || Tok.is(tok::kw_try) || 10089e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian Tok.is(tok::colon)) && 1009be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Actions.CurContext->isTranslationUnit()) { 1010be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1011be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Scope *ParentScope = getCurScope()->getParent(); 1012651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1013be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.setFunctionDefinitionKind(FDK_Definition); 1014be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Decl *FuncDecl = Actions.HandleDeclarator(ParentScope, D, 10155354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg()); 1016be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.complete(FuncDecl); 1017be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.getMutableDeclSpec().abort(); 1018be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian if (FuncDecl) { 1019be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian // Consume the tokens and store them for later parsing. 1020be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian StashAwayMethodOrFunctionBodyTokens(FuncDecl); 1021be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian CurParsedObjCImpl->HasCFunction = true; 1022be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian return FuncDecl; 1023be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1024651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // FIXME: Should we really fall through here? 1025be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1026651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1027b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 10288935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1029a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1030b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 1031b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 1032d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 103323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 10345354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer *TemplateInfo.TemplateParams, D) 103523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 1036a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 103754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 103854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 103954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 104054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 104154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 104254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 104354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 1044651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TryConsumeToken(tok::equal)) { 10454e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Only C++ function definitions have '='"); 10466bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Actions.ActOnFinishFunctionBody(Res, nullptr, false); 10476bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 1048cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt bool Delete = false; 1049cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SourceLocation KWLoc; 1050651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TryConsumeToken(tok::kw_delete, KWLoc)) { 1051651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(KWLoc, getLangOpts().CPlusPlus11 1052651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ? diag::warn_cxx98_compat_deleted_function 1053651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines : diag::ext_deleted_function); 1054cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDeleted(Res, KWLoc); 1055cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete = true; 1056651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (TryConsumeToken(tok::kw_default, KWLoc)) { 1057651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(KWLoc, getLangOpts().CPlusPlus11 1058651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ? diag::warn_cxx98_compat_defaulted_function 1059651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines : diag::ext_defaulted_function); 1060cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDefaulted(Res, KWLoc); 1061cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1062cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 1063cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1064cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1065cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::comma)) { 1066cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 1067cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt << Delete; 1068cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SkipUntil(tok::semi); 1069651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (ExpectAndConsume(tok::semi, diag::err_expected_after, 1070651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Delete ? "delete" : "default")) { 1071651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SkipUntil(tok::semi); 1072cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1073cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1074cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt return Res; 1075cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1076cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1077d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 1078c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 1079d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 10807ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 10817ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 1082d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 10837ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 1084d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 1085d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 1086d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 1087c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 10886bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Actions.ActOnFinishFunctionBody(Res, nullptr); 1089d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 1090d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 1091d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 1092393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 10937ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 1094c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Late attributes are parsed in the same scope as the function body. 1095c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (LateParsedAttrs) 1096c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins ParseLexedAttributeList(*LateParsedAttrs, Res, false, true); 1097c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 1098c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 11035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 11045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 1105075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 110704421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 110804421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 11093a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope | 11103a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith Scope::FunctionDeclarationScope | Scope::DeclScope); 111104421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 1115a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 11170b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1119a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1125651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TryConsumeToken(tok::semi)) { 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1129a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1138ec64244f5939fa81596fbeddad966cca4b4a4c51Richard Smith if (DS.getThreadStorageClassSpec() != DeclSpec::TSCS_unspecified) { 1139ec64244f5939fa81596fbeddad966cca4b4a4c51Richard Smith Diag(DS.getThreadStorageClassSpecLoc(), 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1143a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 11517f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 1152a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 1154d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 115523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 1156152b4e4652baedfceba1cd8115515629225e713fManuel Klimek 1157a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 11655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 1166651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (i == FTI.NumParams) { 11671ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 11686898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1171a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1172651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (FTI.Params[i].Ident == ParmDeclarator.getIdentifier()) { 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 1174651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (FTI.Params[i].Param) { 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 11761ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 11776898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 1179651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FTI.Params[i].Param = Param; 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 1188000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 1190a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11917984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.clear(); 11927984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 11947984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.setCommaLoc(ConsumeToken()); 1195a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1199a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1200651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Consume ';' and continue parsing. 1201651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!ExpectAndConsumeSemi(diag::err_expected_semi_declaration)) 1202651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines continue; 1203651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1204651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Otherwise recover by skipping to next semi or mandatory function body. 1205651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (SkipUntil(tok::l_brace, StopAtSemi | StopBeforeMatch)) 1206651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines break; 1207651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TryConsumeToken(tok::semi); 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1209a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 121123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 12195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 12205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 122160d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 12227f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek switch (Tok.getKind()) { 12237f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::string_literal: 12247f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek break; 122599831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf8_string_literal: 122699831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf16_string_literal: 122799831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf32_string_literal: 12287f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::wide_string_literal: { 12297f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek SourceLocation L = Tok.getLocation(); 12307f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_asm_operand_wide_string_literal) 123199831e4677a7e2e051af636221694d60ba31fcdbRichard Smith << (Tok.getKind() == tok::wide_string_literal) 12327f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek << SourceRange(L, L); 12337f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12347f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek } 12357f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek default: 123697f8461a2c553f68a258612d2322e4281c3f0915Andy Gibbs Diag(Tok, diag::err_expected_string_literal) 123797f8461a2c553f68a258612d2322e4281c3f0915Andy Gibbs << /*Source='in...'*/0 << "'asm'"; 12387f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1240a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 124199831e4677a7e2e051af636221694d60ba31fcdbRichard Smith return ParseStringLiteralExpression(); 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 12475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 12485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 124960d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1250000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1251dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1252a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12537a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1254841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1255841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1256841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1257841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1258841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1259849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 12607a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 12617a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 12627a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 12634a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 12644a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 12651ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 126661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1268a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 126960d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1270a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1271651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!Result.isInvalid()) { 12724a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Close the paren and get the location of the end bracket 12734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1274ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 12754a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor *EndLoc = T.getCloseLocation(); 1276651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (SkipUntil(tok::r_paren, StopAtSemi | StopBeforeMatch)) { 1277651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (EndLoc) 1278651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines *EndLoc = Tok.getLocation(); 1279651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ConsumeParen(); 1280ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1281a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12823fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 128525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// \brief Get the TemplateIdAnnotation from the token and put it in the 128625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// cleanup pool so that it gets destroyed when parsing the current top level 128725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// declaration is finished. 128825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios KyrtzidisTemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { 128925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis assert(tok.is(tok::annot_template_id) && "Expected template-id token"); 129025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation * 129125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); 129225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis return Id; 129325a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis} 129425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis 12950576681bac125be07f77f66b02a3dba2c3a24557Richard Smithvoid Parser::AnnotateScopeToken(CXXScopeSpec &SS, bool IsNewAnnotation) { 12960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Push the current token back into the token stream (or revert it if it is 12970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // cached) and use an annotation scope token for current token. 12980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (PP.isBacktrackEnabled()) 12990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.RevertCachedTokens(1); 13000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith else 13010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.EnterToken(Tok); 13020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_cxxscope); 13030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 13040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationRange(SS.getRange()); 13050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // In case the tokens were cached, have Preprocessor replace them 13070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // with the annotation token. We don't need to do this if we've 13080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // just reverted back to a prior state. 13090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (IsNewAnnotation) 13100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 13110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 13120576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Attempt to classify the name at the current token position. This may 13140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// form a type, scope or primary expression annotation, or replace the token 13150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// with a typo-corrected keyword. This is only appropriate when the current 13160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// name must refer to an entity which has already been declared. 13170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// 13180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param IsAddressOfOperand Must be \c true if the name is preceded by an '&' 13190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// and might possibly have a dependent nested name specifier. 13200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param CCC Indicates how to perform typo-correction for this name. If NULL, 13210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// no typo correction will be performed. 13220576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::AnnotatedNameKind 13230576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::TryAnnotateName(bool IsAddressOfOperand, 13240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CorrectionCandidateCallback *CCC) { 13250576681bac125be07f77f66b02a3dba2c3a24557Richard Smith assert(Tok.is(tok::identifier) || Tok.is(tok::annot_cxxscope)); 13260576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool EnteringContext = false; 13280576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 13290576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13300576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec SS; 13310576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (getLangOpts().CPlusPlus && 13320576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 13330576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13340576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13350576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Tok.isNot(tok::identifier) || SS.isInvalid()) { 13360576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 13370576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 13380576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13390576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 13400576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 13410576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13420576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IdentifierInfo *Name = Tok.getIdentifierInfo(); 13430576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SourceLocation NameLoc = Tok.getLocation(); 13440576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13450576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // FIXME: Move the tentative declaration logic into ClassifyName so we can 13460576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // typo-correct to tentatively-declared identifiers. 13470576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (isTentativelyDeclared(Name)) { 13480576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Identifier has been tentatively declared, and thus cannot be resolved as 13490576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // an expression. Fall back to annotating it as a type. 13500576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 13510576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 13520576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13530576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return Tok.is(tok::annot_typename) ? ANK_Success : ANK_TentativeDecl; 13540576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 13550576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13560576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Token Next = NextToken(); 13570576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13580576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Look up and classify the identifier. We don't perform any typo-correction 13590576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // after a scope specifier, because in general we can't recover from typos 1360651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // there (eg, after correcting 'A::tempalte B<X>::C' [sic], we would need to 1361651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // jump back into scope specifier parsing). 13620576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Sema::NameClassification Classification 13630576681bac125be07f77f66b02a3dba2c3a24557Richard Smith = Actions.ClassifyName(getCurScope(), SS, Name, NameLoc, Next, 13646bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines IsAddressOfOperand, SS.isEmpty() ? CCC : nullptr); 13650576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13660576681bac125be07f77f66b02a3dba2c3a24557Richard Smith switch (Classification.getKind()) { 13670576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Error: 13680576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13690576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13700576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Keyword: 13710576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // The identifier was typo-corrected to a keyword. 13720576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setIdentifierInfo(Name); 13730576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(Name->getTokenID()); 13740576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.TypoCorrectToken(Tok); 13750576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 13760576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 13770576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We've "annotated" this as a keyword. 13780576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 13790576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13800576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Unknown: 13810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // It's not something we know about. Leave it unannotated. 13820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith break; 13830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Type: 13850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_typename); 13860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setTypeAnnotation(Tok, Classification.getType()); 13870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 13880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 13890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 13900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 13910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 13920576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Expression: 13940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_primary_expr); 13950576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setExprAnnotation(Tok, Classification.getExpression()); 13960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 13970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 13980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 13990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 14000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_TypeTemplate: 14030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Next.isNot(tok::less)) { 14040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // This may be a type template being used as a template template argument. 14050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_TemplateName; 14080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Fall through. 1410ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo case Sema::NC_VarTemplate: 14110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_FunctionTemplate: { 1412ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo // We have a type, variable or function template followed by '<'. 14130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ConsumeToken(); 14140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith UnqualifiedId Id; 14150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Id.setIdentifier(Name, NameLoc); 14160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (AnnotateTemplateIdToken( 14170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith TemplateTy::make(Classification.getTemplateName()), 14180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Classification.getTemplateNameKind(), SS, SourceLocation(), Id)) 14190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 14200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14220576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14230576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_NestedNameSpecifier: 14240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith llvm_unreachable("already parsed nested name specifier"); 14250576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14260576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Unable to classify the name, but maybe we can annotate a scope specifier. 14280576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14290576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14300576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 14310576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 14320576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 143303e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendlingbool Parser::TryKeywordIdentFallback(bool DisableKeyword) { 1434651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines assert(!Tok.is(tok::identifier) && !Tok.isAnnotation()); 143503e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling Diag(Tok, diag::ext_keyword_as_ident) 143603e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling << PP.getSpelling(Tok) 143703e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling << DisableKeyword; 1438651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (DisableKeyword) { 1439651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines IdentifierInfo *II = Tok.getIdentifierInfo(); 1440651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ContextualKeywords[II] = Tok.getKind(); 1441651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines II->RevertTokenIDToIdentifier(); 1442651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 144303e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling Tok.setKind(tok::identifier); 144403e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling return true; 144503e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling} 144603e463e293f5ecf62cb8c807d00edb9fbb1f99d7Bill Wendling 1447651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesbool Parser::TryIdentKeywordUpgrade() { 1448651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines assert(Tok.is(tok::identifier)); 1449651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const IdentifierInfo *II = Tok.getIdentifierInfo(); 1450651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines assert(II->hasRevertedTokenIDToIdentifier()); 1451651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // If we find that this is in fact the name of a type trait, 1452651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // update the token kind in place and parse again to treat it as 1453651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // the appropriate kind of type trait. 1454651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::SmallDenseMap<const IdentifierInfo *, tok::TokenKind>::iterator Known = 1455651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ContextualKeywords.find(II); 1456651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Known == ContextualKeywords.end()) 1457651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return false; 1458651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Tok.setKind(Known->second); 1459651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return true; 1460651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines} 1461651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1462eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1463eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1464eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1465eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1466eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1467eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1468eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1469eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 147044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 147144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 147244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 147344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 147444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1475b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 147644802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 147744802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 147844802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1479a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 14809ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 14811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 148255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 148355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1484fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrainbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { 14851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 148642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope) 148723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith || Tok.is(tok::kw_decltype) || Tok.is(tok::annot_template_id)) 148823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith && "Cannot be a type or scope token!"); 14891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1490d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 149167ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // MSVC lets you do stuff like: 149267ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // typename typedef T_::D D; 149367ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // 149467ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // We will consume the typedef token here and put it back after we have 149567ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // parsed the first identifier, transforming it into something more like: 149667ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer // typename T_::D typedef D; 1497651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (getLangOpts().MSVCCompat && NextToken().is(tok::kw_typedef)) { 149867ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Token TypedefToken; 149967ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer PP.Lex(TypedefToken); 150067ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer bool Result = TryAnnotateTypeOrScopeToken(EnteringContext, NeedType); 150167ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer PP.EnterToken(Tok); 150267ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Tok = TypedefToken; 150367ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer if (!Result) 150467ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Diag(Tok.getLocation(), diag::warn_expected_qualified_after_typename); 150567ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer return Result; 150667ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer } 150767ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer 1508d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1509d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1510d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1511d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 15121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 15131734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1514d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1515d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 1516efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), 1517efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false, 15186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, /*IsTypename*/ true)) 15199ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15209ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 1521b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::identifier) || Tok.is(tok::annot_template_id) || 1522b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet Tok.is(tok::annot_decltype)) { 152323756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // Attempt to recover by skipping the invalid 'typename' 1524b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::annot_decltype) || 1525b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet (!TryAnnotateTypeOrScopeToken(EnteringContext, NeedType) && 152667ac9989e3ec53174b524ab8bc7d08185346caceDavid Majnemer Tok.isAnnotation())) { 152723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith unsigned DiagID = diag::err_expected_qualified_after_typename; 152823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // MS compatibility: MSVC permits using known types with typename. 152923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // e.g. "typedef typename T* pointer_type" 153023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith if (getLangOpts().MicrosoftExt) 153123756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith DiagID = diag::warn_expected_qualified_after_typename; 153223756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), DiagID); 153323756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith return false; 153423756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 153523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 153623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith 153723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 15389ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1539d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1540d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1541d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1542d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1543d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 154423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 15451a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1546d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 15471734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 154825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1549651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TemplateId->Kind != TNK_Type_template && 1550651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TemplateId->Kind != TNK_Dependent_template_name) { 15511734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 15521734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 15539ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15541734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1555d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 15565354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), 1557a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 155866581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara 1559a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 156066581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateId->TemplateKWLoc, 1561a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1562a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1563a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 156466581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateArgsPtr, 1565a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 15661734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 15671734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 15681734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 15699ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15701734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15711734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 157239d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 15731734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1574b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 157539d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 15761734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 15771734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 15789ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1579d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1580d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1581ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 15820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1583ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1584eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 15854e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 1586b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 15879ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1588eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 15890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, NeedType, 15900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SS, !WasScopeAnnotation); 15910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 15920576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Try to annotate a type or scope token, having already parsed an 15940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// optional scope specifier. \p IsNewScope should be \c true unless the scope 15950576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// specifier was extracted from an existing tok::annot_cxxscope annotation. 15960576681bac125be07f77f66b02a3dba2c3a24557Richard Smithbool Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(bool EnteringContext, 15970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool NeedType, 15980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec &SS, 15990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool IsNewScope) { 1600eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 16016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines IdentifierInfo *CorrectedII = nullptr; 1602608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1603b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1604b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 16051e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 16069e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 16079e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 1608fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/false, 16096bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*NonTrivialTypeSourceInfo*/ true, 16106bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NeedType ? &CorrectedII 16116bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines : nullptr)) { 1612fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain // A FixIt was applied as a result of typo correction 1613fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain if (CorrectedII) 1614fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain Tok.setIdentifierInfo(CorrectedII); 1615608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1616608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1617b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1618b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1619608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1620608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1621608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 16221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1623608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1624608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1625608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 16269ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 16271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 162839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 16294e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 1630608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1631608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 16321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1633608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1634eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 16351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 163639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 163755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 16387532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1639014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1640014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 16411fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 16421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 16437c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 16447c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1645b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1646b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 16477c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1648ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1649ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1650e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 1651e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName)) { 1652c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1653c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1654c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 16559ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1656c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1657ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 165855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1659d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 166039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 166139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 166239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 166339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 16641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1665eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 166639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 166725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1668c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 166939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 167039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 167139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 167239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1673059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 16749ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1675651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 167639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1677d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 16786ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 16799ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 16801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16816ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 16820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, IsNewScope); 16839ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1684eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1685eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1686eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 168739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 168883a22ecbf52c06b4ee364f3fadcdb0abaf2dabf6Richard Smith/// true if there was an error that could not be recovered from. 16891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 169055a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 169155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1692495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 16934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 16946ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 16953b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 169642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) || 169742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie Tok.is(tok::kw_decltype)) && "Cannot be a type or scope token!"); 1698eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 16994bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1700b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 17019ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1702edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 17039ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1704eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 17050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, true); 17069ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1707eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 17086c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1709fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieubool Parser::isTokenEqualOrEqualTypo() { 1710fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu tok::TokenKind Kind = Tok.getKind(); 1711fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu switch (Kind) { 1712fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu default: 1713d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu return false; 1714fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::ampequal: // &= 1715fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::starequal: // *= 1716fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::plusequal: // += 1717fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::minusequal: // -= 1718fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::exclaimequal: // != 1719fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::slashequal: // /= 1720fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::percentequal: // %= 1721fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lessequal: // <= 1722fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lesslessequal: // <<= 1723fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greaterequal: // >= 1724fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greatergreaterequal: // >>= 1725fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::caretequal: // ^= 1726fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::pipeequal: // |= 1727fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equalequal: // == 1728fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu Diag(Tok, diag::err_invalid_token_after_declarator_suggest_equal) 1729651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << Kind 1730651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), "="); 1731fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equal: 1732fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu return true; 1733fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu } 1734a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1735a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 17367d100872341f233c81e1d7b72b40457e62c36862Argyrios KyrtzidisSourceLocation Parser::handleUnexpectedCodeCompletionToken() { 17377d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis assert(Tok.is(tok::code_completion)); 17387d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis PrevTokLocation = Tok.getLocation(); 17397d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 174023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1741dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1742f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 17437d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17447d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1745dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1746dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1747dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1748f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 17497d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17507d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1751dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1752dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1753dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1754f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 17557d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17567d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1757dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1758dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 17596c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 17606c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 17616c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 17626c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 17636c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 17646c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1765f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1766f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1767f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1768f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1769f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1770f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1771f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1772f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1773f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1774f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 17751fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 17761fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1777f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1778f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1779f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1780f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1781f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1782f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1783f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1784f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1785f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1786f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1787f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1788f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 17891fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 179055817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 179155817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 179255817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 179355817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1794f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17953896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregorbool Parser::ParseMicrosoftIfExistsCondition(IfExistsCondition& Result) { 1796f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 1797f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 17983896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.IsIfExists = Tok.is(tok::kw___if_exists); 17993896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.KeywordLoc = ConsumeToken(); 1800f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 18024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 18033896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Diag(Tok, diag::err_expected_lparen_after) 18043896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor << (Result.IsIfExists? "__if_exists" : "__if_not_exists"); 1805f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1806f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1807f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1808f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 1809efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(Result.SS, ParsedType(), 1810efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false); 1811f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1812f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 18133896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Result.SS.isInvalid()) { 18143896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1815f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1816f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1817f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1818e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // Parse the unqualified-id. 1819e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; // FIXME: parsed, but unused. 1820e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(Result.SS, false, true, true, ParsedType(), 1821e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, Result.Name)) { 18223896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1823f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1824f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1825f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18263896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (T.consumeClose()) 1827f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 18283896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1829f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 183065019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor switch (Actions.CheckMicrosoftIfExistsSymbol(getCurScope(), Result.KeywordLoc, 183165019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor Result.IsIfExists, Result.SS, 18323896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Name)) { 18333896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Exists: 18343896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = Result.IsIfExists ? IEB_Parse : IEB_Skip; 18353896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 1836f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18373896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_DoesNotExist: 18383896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = !Result.IsIfExists ? IEB_Parse : IEB_Skip; 18393896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 18403896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18413896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Dependent: 18423896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = IEB_Dependent; 18433896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 184465019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor 184565019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor case Sema::IER_Error: 184665019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor return true; 18473896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 1848f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1849f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 1850f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1851f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1852563a645de82231a55e221fe655b7188bf8369662Francois Pichetvoid Parser::ParseMicrosoftIfExistsExternalDeclaration() { 18533896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor IfExistsCondition Result; 1854f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 1855f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1856f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18573896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor BalancedDelimiterTracker Braces(*this, tok::l_brace); 18583896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Braces.consumeOpen()) { 1859651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Tok, diag::err_expected) << tok::l_brace; 1860f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1861f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1862f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18633896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor switch (Result.Behavior) { 18643896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Parse: 18653896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse declarations below. 18663896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 18673896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18683896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Dependent: 18693896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor llvm_unreachable("Cannot have a dependent external declaration"); 18703896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18713896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Skip: 18723896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.skipToEnd(); 1873f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1874f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1875f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18763896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse the declarations. 1877651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // FIXME: Support module import within __if_exists? 1878651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines while (Tok.isNot(tok::r_brace) && !isEofOrEom()) { 1879f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 18804e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 1881f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 1882f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 1883f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 1884f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 1885651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 18863896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.consumeClose(); 1887f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 18886aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 18895948ae1021122164b22f74353bb7fe325a64f616Douglas GregorParser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) { 18901b257afbae854c6817f26b7d61c4fed8ff7aebadDouglas Gregor assert(Tok.isObjCAtKeyword(tok::objc_import) && 189165030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor "Improper start to module import"); 18926aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ImportLoc = ConsumeToken(); 18936aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 1894cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path; 18953d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18963d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Parse the module path. 18973d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor do { 18983d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (!Tok.is(tok::identifier)) { 1899c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor if (Tok.is(tok::code_completion)) { 1900c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor Actions.CodeCompleteModuleImport(ImportLoc, Path); 19016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines cutOffParsing(); 1902c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor return DeclGroupPtrTy(); 1903c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor } 1904c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor 19053d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Diag(Tok, diag::err_module_expected_ident); 19063d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor SkipUntil(tok::semi); 19073d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor return DeclGroupPtrTy(); 19083d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 19093d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 19103d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Record this part of the module path. 19113d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Path.push_back(std::make_pair(Tok.getIdentifierInfo(), Tok.getLocation())); 19123d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 19133d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 19143d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (Tok.is(tok::period)) { 19153d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 19163d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor continue; 19173d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 19183d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 19193d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor break; 19203d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } while (true); 19213b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis 19223b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis if (PP.hadModuleLoaderFatalFailure()) { 19233b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis // With a fatal failure in the module loader, we abort parsing. 19243b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis cutOffParsing(); 19253b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis return DeclGroupPtrTy(); 19263b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis } 19273b7deda7137e62810a810ce25b062927a9fc7c71Argyrios Kyrtzidis 19285948ae1021122164b22f74353bb7fe325a64f616Douglas Gregor DeclResult Import = Actions.ActOnModuleImport(AtLoc, ImportLoc, Path); 19296aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor ExpectAndConsumeSemi(diag::err_module_expected_semi); 19306aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (Import.isInvalid()) 19316aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 19326aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 19336aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return Actions.ConvertDeclToDeclGroup(Import.get()); 19346aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor} 19354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1936c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseOverflow() { 19379e738cc9d4b4655c44dadeb22f3a314daf43b995Richard Smith P.Diag(P.Tok, diag::err_bracket_depth_exceeded) 19389e738cc9d4b4655c44dadeb22f3a314daf43b995Richard Smith << P.getLangOpts().BracketDepth; 19399e738cc9d4b4655c44dadeb22f3a314daf43b995Richard Smith P.Diag(P.Tok, diag::note_bracket_depth); 1940651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines P.cutOffParsing(); 1941651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return true; 19424a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 19434a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1944c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, 1945651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const char *Msg, 1946651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines tok::TokenKind SkipToTok) { 19474a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.Tok.getLocation(); 1948651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (P.ExpectAndConsume(Kind, DiagID, Msg)) { 1949651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (SkipToTok != tok::unknown) 1950651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines P.SkipUntil(SkipToTok, Parser::StopAtSemi); 1951d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 1952651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 1953651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1954d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (getDepth() < MaxDepth) 1955d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return false; 1956d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1957d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return diagnoseOverflow(); 19584a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 19594a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1960c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseMissingClose() { 1961d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor assert(!P.Tok.is(Close) && "Should have consumed closing delimiter"); 1962651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1963651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines P.Diag(P.Tok, diag::err_expected) << Close; 1964651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines P.Diag(LOpen, diag::note_matching) << Kind; 19655eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith 19665eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith // If we're not already at some kind of closing bracket, skip to our closing 19675eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith // token. 19685eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith if (P.Tok.isNot(tok::r_paren) && P.Tok.isNot(tok::r_brace) && 19695eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith P.Tok.isNot(tok::r_square) && 19708fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev P.SkipUntil(Close, FinalToken, 19718fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev Parser::StopAtSemi | Parser::StopBeforeMatch) && 19725eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith P.Tok.is(Close)) 1973b578aee665aad5ed1a46a26217c730fdfbfc8c2eDavid Blaikie LClose = P.ConsumeAnyToken(); 19744a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 19754a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 19763896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1977c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorvoid BalancedDelimiterTracker::skipToEnd() { 19788fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev P.SkipUntil(Close, Parser::StopBeforeMatch); 19795eed7e00b4ac8d589ca83e126dafa8767e8a0358Richard Smith consumeClose(); 19803896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor} 1981