Parser.cpp revision 6b3d3e54c003b03f16e235ad2ff49e95587bbf92
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 "ParsePragma.h" 1655fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "RAIIObjectsForParser.h" 1755fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/AST/ASTConsumer.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 36aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko virtual bool HandleComment(Preprocessor &PP, SourceRange Comment) { 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); 5923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 609e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 62849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl = 0; 63fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 64fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 65fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 669595c7e2533c836537dc300e75d059c29feb7094Eli Friedman AlignHandler.reset(new PragmaAlignHandler()); 67cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.AddPragmaHandler(AlignHandler.get()); 68cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar 699595c7e2533c836537dc300e75d059c29feb7094Eli Friedman GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler()); 70aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); 71aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman 729595c7e2533c836537dc300e75d059c29feb7094Eli Friedman OptionsHandler.reset(new PragmaOptionsHandler()); 739b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(OptionsHandler.get()); 749b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 759595c7e2533c836537dc300e75d059c29feb7094Eli Friedman PackHandler.reset(new PragmaPackHandler()); 769b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(PackHandler.get()); 7762c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian 789595c7e2533c836537dc300e75d059c29feb7094Eli Friedman MSStructHandler.reset(new PragmaMSStructHandler()); 7962c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.AddPragmaHandler(MSStructHandler.get()); 809b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 819595c7e2533c836537dc300e75d059c29feb7094Eli Friedman UnusedHandler.reset(new PragmaUnusedHandler()); 829b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(UnusedHandler.get()); 839b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 849595c7e2533c836537dc300e75d059c29feb7094Eli Friedman WeakHandler.reset(new PragmaWeakHandler()); 859b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(WeakHandler.get()); 86321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne 879595c7e2533c836537dc300e75d059c29feb7094Eli Friedman RedefineExtnameHandler.reset(new PragmaRedefineExtnameHandler()); 885f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.AddPragmaHandler(RedefineExtnameHandler.get()); 895f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall 909595c7e2533c836537dc300e75d059c29feb7094Eli Friedman FPContractHandler.reset(new PragmaFPContractHandler()); 91321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.AddPragmaHandler("STDC", FPContractHandler.get()); 92f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 949595c7e2533c836537dc300e75d059c29feb7094Eli Friedman OpenCLExtensionHandler.reset(new PragmaOpenCLExtensionHandler()); 95f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 96f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 97f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); 98f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 99aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 100056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko CommentSemaHandler.reset(new ActionCommentHandler(actions)); 101056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.addCommentHandler(CommentSemaHandler.get()); 102aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 103f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1063cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 10733e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 1081ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 1091ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 1103cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 1111ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1144b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 1154b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 1164b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 1174b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 11870517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko/// \param DK The kind of diagnostic to emit. 1194b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 1204b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 1214b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 122b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 123b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 1244b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 1254b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 1264b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 1274b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 1284b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 1291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 131849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 132849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 1334b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 1344b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 135837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 136837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 1374b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith case tok::semi: 1384b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith return Tok.is(tok::colon) || Tok.is(tok::comma); // : or , for ; 139837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 140837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 141837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 142837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// input. If so, it is consumed and false is returned. 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If the input is malformed, this emits the specified diagnostic. Next, if 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// returned. 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Msg, tok::TokenKind SkipToTok) { 151dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 155a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 156837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 157837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 158837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 159837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall Diag(Loc, DiagID) 160837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << Msg 161837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << FixItHint::CreateReplacement(SourceRange(Loc), 162837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall getTokenSimpleSpelling(ExpectedTok)); 163837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall ConsumeAnyToken(); 164837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 165837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 166837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 167837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 168837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 1694b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor const char *Spelling = 0; 170b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 1711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EndLoc.isValid() && 172b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { 1734b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // Show what code to insert to fix this problem. 1741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(EndLoc, DiagID) 1754b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor << Msg 176849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, Spelling); 1774b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } else 1784b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Tok, DiagID) << Msg; 1794b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (SkipToTok != tok::unknown) 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(SkipToTok); 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1859ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 1869ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { 187fb5825dca4e95fee463fdeaddb8b729294fb4d10Douglas Gregor ConsumeToken(); 1889ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 1899ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 1909ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 1919ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 1929ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 1939ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 1949ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 1959ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 1969ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 1979ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 1989ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 1999ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 2009ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 2019ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 2029ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 2039ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 204eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smithvoid Parser::ConsumeExtraSemi(ExtraSemiKind Kind, unsigned TST) { 2054b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu if (!Tok.is(tok::semi)) return; 2064b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 207eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith bool HadMultipleSemis = false; 2084b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation StartLoc = Tok.getLocation(); 2094b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation EndLoc = Tok.getLocation(); 2104b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2114b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2124b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu while ((Tok.is(tok::semi) && !Tok.isAtStartOfLine())) { 213eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith HadMultipleSemis = true; 2144b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu EndLoc = Tok.getLocation(); 2154b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 2164b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2174b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 218eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // C++11 allows extra semicolons at namespace scope, but not in any of the 219eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // other contexts. 220eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind == OutsideFunction && getLangOpts().CPlusPlus) { 22180ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11) 222eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_cxx98_compat_top_level_semi) 223eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 224eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 225eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi_cxx11) 226eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2274b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu return; 2284b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 2294b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 230eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind != AfterMemberFunctionDefinition || HadMultipleSemis) 231eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi) 232eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << Kind << DeclSpec::getSpecifierName((DeclSpec::TST)TST) 233eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 234eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 235eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // A single semicolon is valid after a member function definition. 236eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_extra_semi_after_mem_fn_def) 237eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 2384b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu} 2394b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 2405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 245012cf464254804279efa84e21b4b493dde76c5f1Chris Lattner/// it (unless DontConsume is true). Because we cannot guarantee that the 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 249a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 251a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 252eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikiebool Parser::SkipUntil(ArrayRef<tok::TokenKind> Toks, bool StopAtSemi, 253eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie bool DontConsume, bool StopAtCodeCompletion) { 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 2575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 259eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie for (unsigned i = 0, NumToks = Toks.size(); i != NumToks; ++i) { 260000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DontConsume) { 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 269a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 274dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 275dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 2763437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis if (!StopAtCodeCompletion) 2773437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis ConsumeToken(); 278dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 279dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 2833437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 2883437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 2933437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 295a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 316a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 3195cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 3205cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 3215cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 32455edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (StopAtSemi) 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 3335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 335a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 3405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 3435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 3449e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 3459e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 34623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 34723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 3499c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 3545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 35523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 35790ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 35890ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 35923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (!getCurScope()->decl_empty()) 36023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 361a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 36223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 36323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 364a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 3659e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 3669e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 3689e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 3695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3717a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Set the flags for the current scope to ScopeFlags. If ManageFlags is false, 3727a614d8380297fcd2bc23986241905d97222948cRichard Smith/// this object does nothing. 3737a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::ParseScopeFlags(Parser *Self, unsigned ScopeFlags, 3747a614d8380297fcd2bc23986241905d97222948cRichard Smith bool ManageFlags) 3757a614d8380297fcd2bc23986241905d97222948cRichard Smith : CurScope(ManageFlags ? Self->getCurScope() : 0) { 3767a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) { 3777a614d8380297fcd2bc23986241905d97222948cRichard Smith OldFlags = CurScope->getFlags(); 3787a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(ScopeFlags); 3797a614d8380297fcd2bc23986241905d97222948cRichard Smith } 3807a614d8380297fcd2bc23986241905d97222948cRichard Smith} 3815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3827a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Restore the flags for the current scope to what they were before this 3837a614d8380297fcd2bc23986241905d97222948cRichard Smith/// object overrode them. 3847a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::~ParseScopeFlags() { 3857a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) 3867a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(OldFlags); 3877a614d8380297fcd2bc23986241905d97222948cRichard Smith} 3885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 3925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 3955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 39623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 39723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 39823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 4009e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 4019e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 402fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 4038387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Free LateParsedTemplatedFunction nodes. 4048387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet for (LateParsedTemplateMapT::iterator it = LateParsedTemplateMap.begin(); 4058387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet it != LateParsedTemplateMap.end(); ++it) 4068387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet delete it->second; 4078387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 408fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Remove the pragma handlers we installed. 409cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.RemovePragmaHandler(AlignHandler.get()); 410cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(); 411aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.RemovePragmaHandler("GCC", GCCVisibilityHandler.get()); 412aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(); 4139b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(OptionsHandler.get()); 414861800c676004eabed5927f0552620d06c80a40aDaniel Dunbar OptionsHandler.reset(); 4159b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(PackHandler.get()); 4164726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek PackHandler.reset(); 41762c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.RemovePragmaHandler(MSStructHandler.get()); 41862c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(); 4199b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(UnusedHandler.get()); 4204726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek UnusedHandler.reset(); 4219b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(WeakHandler.get()); 4229991479ad5dde617168cc1e4b18425cdbbfd9fa9Eli Friedman WeakHandler.reset(); 4235f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.RemovePragmaHandler(RedefineExtnameHandler.get()); 4245f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall RedefineExtnameHandler.reset(); 425f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 4264e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 427f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 428f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset(); 429f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); 430f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 431f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 432321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.RemovePragmaHandler("STDC", FPContractHandler.get()); 433321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(); 434aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 435056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.removeCommentHandler(CommentSemaHandler.get()); 436aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 437f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 43813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 43913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); 4405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 44531e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 44623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "A scope is already active?"); 44731e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 448c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 449c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 45034870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 451a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 4524e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1) { 453a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 454a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 455a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 456a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 457a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 458a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 45934870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 460662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 461e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Ident_instancetype = 0; 4627eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_final = 0; 4637eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_override = 0; 4641f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 465662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 46682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 4674e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().AltiVec) { 46882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 46982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 47082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4710a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 4720a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_introduced = 0; 4730a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_deprecated = 0; 4740a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_obsoleted = 0; 475b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Ident_unavailable = 0; 47628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 477b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = 0; 478b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 47928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = Ident__exception_info = Ident__abnormal_termination = 0; 48028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = Ident___exception_info = Ident___abnormal_termination = 0; 48128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = Ident_GetExceptionInfo = Ident_AbnormalTermination = 0; 48228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 4834e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if(getLangOpts().Borland) { 48428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 48528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 48628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 48728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 48828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 48928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 49028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 49128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 49228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 49328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 49428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 49528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 49628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 49728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 49828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 49928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 50028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 50128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 50228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 50328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 504c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor 505c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor Actions.Initialize(); 506c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor 507c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor // Prime the lexer look-ahead. 508c7be10245e78bf38694b26f289880edefb9f16e9Douglas Gregor ConsumeToken(); 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 51113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramernamespace { 51213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// \brief RAIIObject to destroy the contents of a SmallVector of 51313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// TemplateIdAnnotation pointers and clear the vector. 51413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer class DestroyTemplateIdAnnotationsRAIIObj { 51513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer SmallVectorImpl<TemplateIdAnnotation *> &Container; 51613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer public: 51713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj(SmallVectorImpl<TemplateIdAnnotation *> 51813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer &Container) 51913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer : Container(Container) {} 52013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 52113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer ~DestroyTemplateIdAnnotationsRAIIObj() { 52213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = 52313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.begin(), E = Container.end(); 52413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer I != E; ++I) 52513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer (*I)->Destroy(); 52613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.clear(); 52713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer } 52813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer }; 52913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer} 53013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 5315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 533682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 53413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 535b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 536e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // Skip over the EOF token, flagging end of previous input for incremental 537e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // processing 538e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (PP.isIncrementalProcessingEnabled() && Tok.is(tok::eof)) 539e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann ConsumeToken(); 540e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 541b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis while (Tok.is(tok::annot_pragma_unused)) 542b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 543b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 544682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Result = DeclGroupPtrTy(); 5459299f3fa85796613cc787a2062c9562d07c8613eChris Lattner if (Tok.is(tok::eof)) { 5468387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 5474e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing) 5488387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.SetLateTemplateParser(LateTemplateParserCallback, this); 549e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (!PP.isIncrementalProcessingEnabled()) 550e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann Actions.ActOnEndOfTranslationUnit(); 551e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann //else don't tell Sema that we ended parsing: more input might come. 5528387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 5539299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 5549299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 555a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5560b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 5574e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 5587f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 559e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 5607f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 56590b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 566c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 567c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 568c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 570c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 5715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 5725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 5735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 5745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 577c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 5806b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] empty-declaration 5816b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] attribute-declaration 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 5836b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith/// [C++11] empty-declaration: 584a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 585a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 58645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 5877f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 5887f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 5897f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 59013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 59136d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 5927d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 5937d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis if (PP.isCodeCompletionReached()) { 5947d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 5957d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 5967d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis } 5977d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 598d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *SingleDecl = 0; 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 600426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola case tok::annot_pragma_vis: 601426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola HandlePragmaVisibility(); 602426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola return DeclGroupPtrTy(); 603aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman case tok::annot_pragma_pack: 604aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman HandlePragmaPack(); 605aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman return DeclGroupPtrTy(); 6069595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_msstruct: 6079595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaMSStruct(); 6089595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6099595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_align: 6109595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaAlign(); 6119595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6129595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weak: 6139595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeak(); 6149595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6159595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weakalias: 6169595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeakAlias(); 6179595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6189595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_redefine_extname: 6199595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaRedefineExtname(); 6209595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6219595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_fp_contract: 6229595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaFPContract(); 6239595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6249595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_opencl_extension: 6259595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaOpenCLExtension(); 6269595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 6286b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // Either a C++11 empty-declaration or attribute-declaration. 6296b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith if (attrs.Range.isValid()) { 6306b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith // FIXME: Add an AST representation for this. 6316b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith Actions.ActOnAttributeDeclaration(attrs.getList()); 6326b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith return DeclGroupPtrTy(); 6336b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith } 6346b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith 6354b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeExtraSemi(OutsideFunction); 6365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Invoke action for top-level semicolon. 637682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 63890b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 639883692ebd421c40b44e2c2665e5f54dade5621bcNico Weber Diag(Tok, diag::err_extraneous_closing_brace); 64090b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 641682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 64290b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 64390b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 644682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 645c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 646c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 647c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 64839146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 6497f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 650c3018153a11afe91849748a93d920040a571b76cChris Lattner } 651dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 6527f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 653bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 65421e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 65521e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 65621e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 657a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 6583f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 6593f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 660dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 661682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 662682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 66321e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 664682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 665dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 66795ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian return ParseObjCAtDirectives(); 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 6704e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().ObjC1) { 671682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 672682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 673682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 674682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 675682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 676682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 677791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 67823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 679849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl? Sema::PCC_ObjCImplementation 680f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 6817d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 6827d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 683f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 6848f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 6855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 686adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 687adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 688511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 689c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 69026d6023cb0d343bf8fc8836f97d39709bbd4afa0Chad Rosier // A function definition cannot start with any of these keywords. 69197144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 69297144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 6934e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 6947f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 69597144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 696d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 6977306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 6987306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 6997306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7004e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 7017306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7027306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 703d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 7044e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7057f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7067306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7077306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 7087306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7097306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 7104e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 7117306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 7127306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7137306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 7147306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 7157306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7164e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7177f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7187306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 7197306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 7207306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 7217306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 7227306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 7237306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 7247306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 7257306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 7264e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 7277f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 7287306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 729d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 730d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 731d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 73245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 7334e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 73445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 73545f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 73645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 73780ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith Diag(ExternLoc, getLangOpts().CPlusPlus11 ? 7389324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::warn_cxx98_compat_extern_template : 7399324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); 74045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 74145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 7429241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ParseExplicitInstantiation(Declarator::FileContext, 7439241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ExternLoc, TemplateLoc, DeclEnd)); 74445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 74545f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // FIXME: Detect C++ linkage specifications here? 746d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 7471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 748f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 749f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 750563a645de82231a55e221fe655b7188bf8369662Francois Pichet ParseMicrosoftIfExistsExternalDeclaration(); 751f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 7526aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 754d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 75620af49a7c5bdb6cca5f4d6586106ef1ce8579311Rafael Espindola return ParseDeclarationOrFunctionDefinition(attrs, DS); 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 759682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 760682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 761682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7641426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7651426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 766e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 767e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 7684e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 769e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 770e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 771e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 772e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 7736c89eafc90f5c51a0bf185a993961170aee530c2Fariborz Jahanian 7741426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 7751426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 7761426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 7771426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 7781426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 7794e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().CPlusPlus && 78039700f81c5b42e6be93be10275602915f872fc86Fariborz Jahanian Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 7811426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 7821426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 7831426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 7841426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 785004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 786075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 7875d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 7885d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 7895d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 790004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 7914e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus && 792075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 793004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 794e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 7954e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 796e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 797e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 798e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 799004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 8005d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 8015d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 8021426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 8031426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 8045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 8055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 806c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 807c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 8081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 8095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 811a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 812a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 813a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 814a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 816697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 817697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 820682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 8212edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclOrFunctionDefInternal(ParsedAttributesWithRange &attrs, 8222edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec &DS, 8232edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt AccessSpecifier AS) { 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 8250efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 826a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 8285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 829000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 8302edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 832d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 83354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 834682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 836a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8372edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt DS.takeAttributesFrom(attrs); 8382edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 839246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 840246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 841246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 8424e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC2 && Tok.is(tok::at)) { 843dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 8441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 845246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 846246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 847cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 848682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 849cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 850d8ac05753dc4506224d445ff98399c01da3136e5John McCall 85154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 85254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 8530de2ae28c603322f05e2d9200c7d457c8b928983Fariborz Jahanian const char *PrevSpec = 0; 854fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 855fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) 856fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 8571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 858246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 859bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 860bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 861bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return Actions.ConvertDeclToDeclGroup( 862bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes())); 863dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 864a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 865c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 866c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 867c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 8684e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Tok.is(tok::string_literal) && getLangOpts().CPlusPlus && 869c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 870682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 871d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 872682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 873682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 874c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 875d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8783acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 8792edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclarationOrFunctionDefinition(ParsedAttributesWithRange &attrs, 8802edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec *DS, 8813acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 8822edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt if (DS) { 8832edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, *DS, AS); 8842edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } else { 8852edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec PDS(*this); 8862edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // Must temporarily exit the objective-c container scope for 8872edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // parsing c constructs and re-enter objc container scope 8882edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // afterwards. 8892edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ObjCDeclContextSwitch ObjCDC(*this); 8902edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 8912edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, PDS, AS); 8922edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } 8933acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 8943acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 899a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 900a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 901a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 902a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 9037ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 90423c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 90523c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 9067ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 907d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 909d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 910c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins const ParsedTemplateInfo &TemplateInfo, 911c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins LateParsedAttrList *LateParsedAttrs) { 91228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley // Poison the SEH identifiers so they are flagged as illegal in function bodies 91328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 914075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 915a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 916a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 917a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 918a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 9194e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ImplicitInt && D.getDeclSpec().isEmpty()) { 920a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 921fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 92231c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 92331c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 924fec54013fcd0eb72642741584ca04c1bc292bef8John McCall PrevSpec, DiagID); 925ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 926a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 927a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 931004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 9335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9347ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 9357ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 936758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 9374e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!getLangOpts().CPlusPlus || 938cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && 939cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Tok.isNot(tok::equal)))) { 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::l_brace, true, true); 944a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 946000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 947d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 949a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 950c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Check to make sure that any normal attributes are allowed to be on 951c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // a definition. Late parsed attributes are checked at the end. 952c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (Tok.isNot(tok::equal)) { 953c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins AttributeList *DtorAttrs = D.getAttributes(); 954c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins while (DtorAttrs) { 955cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith if (!IsThreadSafetyAttribute(DtorAttrs->getName()->getName()) && 956cd8ab51a44e80625d84126780b0d85a7732e25afRichard Smith !DtorAttrs->isCXX11Attribute()) { 957c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins Diag(DtorAttrs->getLoc(), diag::warn_attribute_on_function_definition) 958c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins << DtorAttrs->getName()->getName(); 959c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 960c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins DtorAttrs = DtorAttrs->getNext(); 961c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 962c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 963c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 9648387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 9658387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 9664e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing && 9670963017dcbc32176c79a251c3ab23bc35ac784e5Douglas Gregor Tok.isNot(tok::equal) && 9688387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind == ParsedTemplateInfo::Template) { 9695354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg TemplateParameterLists(*TemplateInfo.TemplateParams); 9708387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9718387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 9728387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 9738387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 97445fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(FDK_Definition); 9758387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 9763fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer TemplateParameterLists); 9778387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 9788387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 9798387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9808387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (DP) { 981e1fca502e7f1349e9b4520a4ca9a02413bcf2b14Francois Pichet LateParsedTemplatedFunction *LPT = new LateParsedTemplatedFunction(DP); 9828387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9838387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FnD = 0; 9848387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(DP)) 9858387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = FunTmpl->getTemplatedDecl(); 9868387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 9878387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = cast<FunctionDecl>(DP); 988d4a0caf78e7c18e7aca65fbfd799a6c024ff51fbFrancois Pichet Actions.CheckForFunctionRedefinition(FnD); 9898387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 9908387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplateMap[FnD] = LPT; 9918387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.MarkAsLateParsedTemplate(FnD); 9928387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(LPT->Toks); 9938387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } else { 9948387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet CachedTokens Toks; 9958387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(Toks); 9968387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 9978387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 9988387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 9992eb362b50f34296c39d5ec3e5e1bd6a2c9a5877eFariborz Jahanian else if (CurParsedObjCImpl && 10009e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian !TemplateInfo.TemplateParams && 10019e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian (Tok.is(tok::l_brace) || Tok.is(tok::kw_try) || 10029e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian Tok.is(tok::colon)) && 1003be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Actions.CurContext->isTranslationUnit()) { 1004be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1005be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Scope *ParentScope = getCurScope()->getParent(); 1006be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian 1007be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.setFunctionDefinitionKind(FDK_Definition); 1008be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Decl *FuncDecl = Actions.HandleDeclarator(ParentScope, D, 10095354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg()); 1010be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.complete(FuncDecl); 1011be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.getMutableDeclSpec().abort(); 1012be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian if (FuncDecl) { 1013be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian // Consume the tokens and store them for later parsing. 1014be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian StashAwayMethodOrFunctionBodyTokens(FuncDecl); 1015be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian CurParsedObjCImpl->HasCFunction = true; 1016be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian return FuncDecl; 1017be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1018be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1019be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian 1020b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 10218935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1022a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1023b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 1024b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 1025d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 102623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 10275354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer *TemplateInfo.TemplateParams, D) 102823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 1029a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 103054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 103154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 103254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 103354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 103454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 103554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 103654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 1037cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::equal)) { 10384e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Only C++ function definitions have '='"); 1039cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ConsumeToken(); 1040cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1041cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.ActOnFinishFunctionBody(Res, 0, false); 1042cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1043cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt bool Delete = false; 1044cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SourceLocation KWLoc; 1045cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::kw_delete)) { 104680ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith Diag(Tok, getLangOpts().CPlusPlus11 ? 10477fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_deleted_function : 1048d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_deleted_function); 1049cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1050cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1051cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDeleted(Res, KWLoc); 1052cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete = true; 1053cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else if (Tok.is(tok::kw_default)) { 105480ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith Diag(Tok, getLangOpts().CPlusPlus11 ? 10557fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_defaulted_function : 1056d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_defaulted_function); 1057cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1058cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1059cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDefaulted(Res, KWLoc); 1060cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1061cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 1062cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1063cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1064cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::comma)) { 1065cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 1066cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt << Delete; 1067cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SkipUntil(tok::semi); 1068cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1069cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 1070cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete ? "delete" : "default", tok::semi); 1071cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1072cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1073cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt return Res; 1074cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1075cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1076d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 1077c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 1078d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 10797ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 10807ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 1081d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 10827ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 1083d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 1084d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 1085d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 1086c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 10879ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Actions.ActOnFinishFunctionBody(Res, 0); 1088d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 1089d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 1090d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 1091393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 10927ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 1093c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Late attributes are parsed in the same scope as the function body. 1094c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (LateParsedAttrs) 1095c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins ParseLexedAttributeList(*LateParsedAttrs, Res, false, true); 1096c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 1097c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 11035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 1104075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 11055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 110604421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 110704421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 11083a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope | 11093a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith Scope::FunctionDeclarationScope | Scope::DeclScope); 111004421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 11135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 1114a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 11160b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1118a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1124000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 11255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 11265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 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 } 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.isThreadSpecified()) { 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getThreadSpecLoc(), 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); 11562bd42fadafddc8acf744b57a970bdc96a077c617Steve Naroff 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. 11665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (i == FTI.NumArgs) { 11671ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 11686898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1171a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 117404421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner if (FTI.ArgInfo[i].Param) { 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 11761ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 11776898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 117904421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner FTI.ArgInfo[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 12008bb21d32e9ccc9d9c221506dff26acafa8724ccaChris Lattner if (ExpectAndConsumeSemi(diag::err_expected_semi_declaration)) { 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip to end of block or statement 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::semi, true); 1203000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1207a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 120923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 12175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 121960d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 12207f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek switch (Tok.getKind()) { 12217f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::string_literal: 12227f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek break; 122399831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf8_string_literal: 122499831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf16_string_literal: 122599831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf32_string_literal: 12267f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::wide_string_literal: { 12277f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek SourceLocation L = Tok.getLocation(); 12287f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_asm_operand_wide_string_literal) 122999831e4677a7e2e051af636221694d60ba31fcdbRichard Smith << (Tok.getKind() == tok::wide_string_literal) 12307f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek << SourceRange(L, L); 12317f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12327f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek } 12337f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek default: 123497f8461a2c553f68a258612d2322e4281c3f0915Andy Gibbs Diag(Tok, diag::err_expected_string_literal) 123597f8461a2c553f68a258612d2322e4281c3f0915Andy Gibbs << /*Source='in...'*/0 << "'asm'"; 12367f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1238a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 123999831e4677a7e2e051af636221694d60ba31fcdbRichard Smith return ParseStringLiteralExpression(); 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 124760d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1248000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1249dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1250a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12517a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1252841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1253841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1254841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1255841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1256841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1257849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 12587a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 12597a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 12607a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 12614a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 12624a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 12631ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 126461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1266a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 126760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1268a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1269ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Result.isInvalid()) { 1270ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SkipUntil(tok::r_paren, true, true); 1271ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 1272ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Tok.getLocation(); 1273ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl ConsumeAnyToken(); 1274ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } else { 12754a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Close the paren and get the location of the end bracket 12764a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1277ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 12784a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor *EndLoc = T.getCloseLocation(); 1279ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1280a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12813fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 12825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 128425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// \brief Get the TemplateIdAnnotation from the token and put it in the 128525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// cleanup pool so that it gets destroyed when parsing the current top level 128625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// declaration is finished. 128725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios KyrtzidisTemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { 128825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis assert(tok.is(tok::annot_template_id) && "Expected template-id token"); 128925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation * 129025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); 129125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis return Id; 129225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis} 129325a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis 12940576681bac125be07f77f66b02a3dba2c3a24557Richard Smithvoid Parser::AnnotateScopeToken(CXXScopeSpec &SS, bool IsNewAnnotation) { 12950576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Push the current token back into the token stream (or revert it if it is 12960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // cached) and use an annotation scope token for current token. 12970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (PP.isBacktrackEnabled()) 12980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.RevertCachedTokens(1); 12990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith else 13000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.EnterToken(Tok); 13010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_cxxscope); 13020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 13030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationRange(SS.getRange()); 13040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // In case the tokens were cached, have Preprocessor replace them 13060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // with the annotation token. We don't need to do this if we've 13070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // just reverted back to a prior state. 13080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (IsNewAnnotation) 13090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 13100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 13110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13120576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Attempt to classify the name at the current token position. This may 13130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// form a type, scope or primary expression annotation, or replace the token 13140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// with a typo-corrected keyword. This is only appropriate when the current 13150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// name must refer to an entity which has already been declared. 13160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// 13170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param IsAddressOfOperand Must be \c true if the name is preceded by an '&' 13180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// and might possibly have a dependent nested name specifier. 13190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param CCC Indicates how to perform typo-correction for this name. If NULL, 13200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// no typo correction will be performed. 13210576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::AnnotatedNameKind 13220576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::TryAnnotateName(bool IsAddressOfOperand, 13230576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CorrectionCandidateCallback *CCC) { 13240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith assert(Tok.is(tok::identifier) || Tok.is(tok::annot_cxxscope)); 13250576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13260576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool EnteringContext = false; 13270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 13280576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13290576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec SS; 13300576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (getLangOpts().CPlusPlus && 13310576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 13320576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13330576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13340576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Tok.isNot(tok::identifier) || SS.isInvalid()) { 13350576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 13360576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 13370576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13380576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 13390576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 13400576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13410576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IdentifierInfo *Name = Tok.getIdentifierInfo(); 13420576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SourceLocation NameLoc = Tok.getLocation(); 13430576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13440576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // FIXME: Move the tentative declaration logic into ClassifyName so we can 13450576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // typo-correct to tentatively-declared identifiers. 13460576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (isTentativelyDeclared(Name)) { 13470576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Identifier has been tentatively declared, and thus cannot be resolved as 13480576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // an expression. Fall back to annotating it as a type. 13490576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 13500576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 13510576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13520576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return Tok.is(tok::annot_typename) ? ANK_Success : ANK_TentativeDecl; 13530576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 13540576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13550576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Token Next = NextToken(); 13560576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13570576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Look up and classify the identifier. We don't perform any typo-correction 13580576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // after a scope specifier, because in general we can't recover from typos 13590576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // there (eg, after correcting 'A::tempalte B<X>::C', we would need to jump 13600576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // back into scope specifier parsing). 13610576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Sema::NameClassification Classification 13620576681bac125be07f77f66b02a3dba2c3a24557Richard Smith = Actions.ClassifyName(getCurScope(), SS, Name, NameLoc, Next, 13630576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IsAddressOfOperand, SS.isEmpty() ? CCC : 0); 13640576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13650576681bac125be07f77f66b02a3dba2c3a24557Richard Smith switch (Classification.getKind()) { 13660576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Error: 13670576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 13680576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13690576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Keyword: 13700576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // The identifier was typo-corrected to a keyword. 13710576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setIdentifierInfo(Name); 13720576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(Name->getTokenID()); 13730576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.TypoCorrectToken(Tok); 13740576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 13750576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 13760576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We've "annotated" this as a keyword. 13770576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 13780576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13790576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Unknown: 13800576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // It's not something we know about. Leave it unannotated. 13810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith break; 13820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Type: 13840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_typename); 13850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setTypeAnnotation(Tok, Classification.getType()); 13860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 13870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 13880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 13890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 13900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 13910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 13920576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Expression: 13930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_primary_expr); 13940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setExprAnnotation(Tok, Classification.getExpression()); 13950576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 13960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 13970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 13980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 13990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_TypeTemplate: 14020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Next.isNot(tok::less)) { 14030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // This may be a type template being used as a template template argument. 14040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_TemplateName; 14070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Fall through. 14090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_FunctionTemplate: { 14100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We have a type or function template followed by '<'. 14110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ConsumeToken(); 14120576681bac125be07f77f66b02a3dba2c3a24557Richard Smith UnqualifiedId Id; 14130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Id.setIdentifier(Name, NameLoc); 14140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (AnnotateTemplateIdToken( 14150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith TemplateTy::make(Classification.getTemplateName()), 14160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Classification.getTemplateNameKind(), SS, SourceLocation(), Id)) 14170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 14180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 14190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_NestedNameSpecifier: 14220576681bac125be07f77f66b02a3dba2c3a24557Richard Smith llvm_unreachable("already parsed nested name specifier"); 14230576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 14240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 14250576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Unable to classify the name, but maybe we can annotate a scope specifier. 14260576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 14270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 14280576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 14290576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 14300576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 1431eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1432eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1433eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1434eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1435eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1436eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1437eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1438eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 143944802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 144044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 144144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 144244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 144344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1444b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 144544802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 144644802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 144744802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1448a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 14499ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 14501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 145155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 145255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1453fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrainbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { 14541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 145542d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope) 145623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith || Tok.is(tok::kw_decltype) || Tok.is(tok::annot_template_id)) 145723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith && "Cannot be a type or scope token!"); 14581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1459d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 1460d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1461d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1462d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1463d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 14641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 14651734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1466d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1467d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 1468efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), 1469efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false, 14704147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 0, /*IsTypename*/true)) 14719ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 14729ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 1473b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::identifier) || Tok.is(tok::annot_template_id) || 1474b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet Tok.is(tok::annot_decltype)) { 147523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // Attempt to recover by skipping the invalid 'typename' 1476b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::annot_decltype) || 1477b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet (!TryAnnotateTypeOrScopeToken(EnteringContext, NeedType) && 1478b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet Tok.isAnnotation())) { 147923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith unsigned DiagID = diag::err_expected_qualified_after_typename; 148023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // MS compatibility: MSVC permits using known types with typename. 148123756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // e.g. "typedef typename T* pointer_type" 148223756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith if (getLangOpts().MicrosoftExt) 148323756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith DiagID = diag::warn_expected_qualified_after_typename; 148423756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), DiagID); 148523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith return false; 148623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 148723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 148823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith 148923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 14909ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1491d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1492d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1493d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1494d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1495d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 149623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 14971a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1498d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 14991734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 150025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 15011734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (TemplateId->Kind == TNK_Function_template) { 15021734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 15031734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 15049ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15051734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1506d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 15075354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), 1508a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 150966581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara 1510a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 151166581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateId->TemplateKWLoc, 1512a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1513a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1514a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 151566581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateArgsPtr, 1516a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 15171734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 15181734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 15191734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 15209ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 15211734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 15221734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 152339d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 15241734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1525b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 152639d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 15271734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 15281734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 15299ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1530d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1531d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1532ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 15330576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1534ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1535eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 15364e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 1537b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 15389ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1539eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 15400576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, NeedType, 15410576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SS, !WasScopeAnnotation); 15420576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 15430576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15440576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Try to annotate a type or scope token, having already parsed an 15450576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// optional scope specifier. \p IsNewScope should be \c true unless the scope 15460576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// specifier was extracted from an existing tok::annot_cxxscope annotation. 15470576681bac125be07f77f66b02a3dba2c3a24557Richard Smithbool Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(bool EnteringContext, 15480576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool NeedType, 15490576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec &SS, 15500576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool IsNewScope) { 1551eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 1552fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain IdentifierInfo *CorrectedII = 0; 1553608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1554b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1555b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 15561e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 15579e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 15589e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 1559fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/false, 1560fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain /*NonTrivialTypeSourceInfo*/true, 1561fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain NeedType ? &CorrectedII : NULL)) { 1562fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain // A FixIt was applied as a result of typo correction 1563fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain if (CorrectedII) 1564fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain Tok.setIdentifierInfo(CorrectedII); 1565608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1566608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1567b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1568b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1569608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1570608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1571608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 15721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1573608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1574608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1575608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 15769ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 15771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 157839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 15794e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 1580608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1581608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 15821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1583608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1584eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 15851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 158639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 158755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 15887532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1589014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1590014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 15911fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 15921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 15937c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 15947c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1595b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1596b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 15977c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1598ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1599ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1600e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 1601e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName)) { 1602c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1603c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1604c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 16059ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1606c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1607ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 160855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1609d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 161039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 161139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 161239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 161339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 16141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1615eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 161639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 161725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1618c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 161939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 162039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 162139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 162239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1623059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 16249ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 162539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 162639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1627d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 16286ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 16299ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 16301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16316ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 16320576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, IsNewScope); 16339ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1634eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1635eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1636eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 163739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 163883a22ecbf52c06b4ee364f3fadcdb0abaf2dabf6Richard Smith/// true if there was an error that could not be recovered from. 16391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 164055a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 164155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1642495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 16434e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 16446ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 16453b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 164642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) || 164742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie Tok.is(tok::kw_decltype)) && "Cannot be a type or scope token!"); 1648eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 16494bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1650b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 16519ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1652edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 16539ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1654eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 16550576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, true); 16569ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1657eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 16586c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1659fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieubool Parser::isTokenEqualOrEqualTypo() { 1660fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu tok::TokenKind Kind = Tok.getKind(); 1661fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu switch (Kind) { 1662fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu default: 1663d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu return false; 1664fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::ampequal: // &= 1665fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::starequal: // *= 1666fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::plusequal: // += 1667fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::minusequal: // -= 1668fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::exclaimequal: // != 1669fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::slashequal: // /= 1670fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::percentequal: // %= 1671fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lessequal: // <= 1672fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lesslessequal: // <<= 1673fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greaterequal: // >= 1674fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greatergreaterequal: // >>= 1675fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::caretequal: // ^= 1676fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::pipeequal: // |= 1677fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equalequal: // == 1678fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu Diag(Tok, diag::err_invalid_token_after_declarator_suggest_equal) 1679fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << getTokenSimpleSpelling(Kind) 1680fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), "="); 1681fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equal: 1682fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu return true; 1683fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu } 1684a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1685a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 16867d100872341f233c81e1d7b72b40457e62c36862Argyrios KyrtzidisSourceLocation Parser::handleUnexpectedCodeCompletionToken() { 16877d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis assert(Tok.is(tok::code_completion)); 16887d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis PrevTokLocation = Tok.getLocation(); 16897d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 169023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1691dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1692f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 16937d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 16947d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1695dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1696dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1697dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1698f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 16997d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17007d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1701dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1702dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1703dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1704f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 17057d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 17067d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1707dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1708dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 17096c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 17106c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 17116c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 17126c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 17136c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 17146c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1715f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1716f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1717f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1718f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1719f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1720f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1721f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1722f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1723f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1724f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 17251fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 17261fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1727f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1728f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1729f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1730f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1731f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1732f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1733f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1734f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1735f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1736f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1737f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1738f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 17391fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 174055817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 174155817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 174255817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 174355817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 1744f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17453896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregorbool Parser::ParseMicrosoftIfExistsCondition(IfExistsCondition& Result) { 1746f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 1747f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 17483896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.IsIfExists = Tok.is(tok::kw___if_exists); 17493896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.KeywordLoc = ConsumeToken(); 1750f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17514a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 17524a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 17533896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Diag(Tok, diag::err_expected_lparen_after) 17543896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor << (Result.IsIfExists? "__if_exists" : "__if_not_exists"); 1755f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1756f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1757f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1758f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 1759efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(Result.SS, ParsedType(), 1760efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false); 1761f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1762f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 17633896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Result.SS.isInvalid()) { 17643896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1765f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1766f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1767f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1768e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // Parse the unqualified-id. 1769e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; // FIXME: parsed, but unused. 1770e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(Result.SS, false, true, true, ParsedType(), 1771e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, Result.Name)) { 17723896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 1773f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 1774f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1775f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17763896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (T.consumeClose()) 1777f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 17783896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1779f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 178065019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor switch (Actions.CheckMicrosoftIfExistsSymbol(getCurScope(), Result.KeywordLoc, 178165019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor Result.IsIfExists, Result.SS, 17823896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Name)) { 17833896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Exists: 17843896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = Result.IsIfExists ? IEB_Parse : IEB_Skip; 17853896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 1786f986038beed360c031de8654cfba43a5d3184605Francois Pichet 17873896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_DoesNotExist: 17883896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = !Result.IsIfExists ? IEB_Parse : IEB_Skip; 17893896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 17903896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 17913896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Dependent: 17923896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = IEB_Dependent; 17933896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 179465019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor 179565019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor case Sema::IER_Error: 179665019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor return true; 17973896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 1798f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1799f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 1800f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 1801f986038beed360c031de8654cfba43a5d3184605Francois Pichet 1802563a645de82231a55e221fe655b7188bf8369662Francois Pichetvoid Parser::ParseMicrosoftIfExistsExternalDeclaration() { 18033896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor IfExistsCondition Result; 1804f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 1805f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1806f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18073896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor BalancedDelimiterTracker Braces(*this, tok::l_brace); 18083896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Braces.consumeOpen()) { 1809f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lbrace); 1810f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1811f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1812f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18133896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor switch (Result.Behavior) { 18143896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Parse: 18153896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse declarations below. 18163896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 18173896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18183896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Dependent: 18193896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor llvm_unreachable("Cannot have a dependent external declaration"); 18203896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 18213896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Skip: 18223896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.skipToEnd(); 1823f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 1824f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 1825f986038beed360c031de8654cfba43a5d3184605Francois Pichet 18263896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse the declarations. 18273896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { 1828f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 18294e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 1830f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 1831f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 1832f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 1833f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 18343896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 18353896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.consumeClose(); 1836f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 18376aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 18385948ae1021122164b22f74353bb7fe325a64f616Douglas GregorParser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) { 18391b257afbae854c6817f26b7d61c4fed8ff7aebadDouglas Gregor assert(Tok.isObjCAtKeyword(tok::objc_import) && 184065030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor "Improper start to module import"); 18416aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ImportLoc = ConsumeToken(); 18426aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 1843cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path; 18443d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18453d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Parse the module path. 18463d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor do { 18473d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (!Tok.is(tok::identifier)) { 1848c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor if (Tok.is(tok::code_completion)) { 1849c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor Actions.CodeCompleteModuleImport(ImportLoc, Path); 1850c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor ConsumeCodeCompletionToken(); 1851c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor SkipUntil(tok::semi); 1852c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor return DeclGroupPtrTy(); 1853c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor } 1854c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor 18553d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Diag(Tok, diag::err_module_expected_ident); 18563d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor SkipUntil(tok::semi); 18573d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor return DeclGroupPtrTy(); 18583d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 18593d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18603d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Record this part of the module path. 18613d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Path.push_back(std::make_pair(Tok.getIdentifierInfo(), Tok.getLocation())); 18623d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 18633d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18643d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (Tok.is(tok::period)) { 18653d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 18663d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor continue; 18673d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 18683d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 18693d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor break; 18703d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } while (true); 18716aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 18725948ae1021122164b22f74353bb7fe325a64f616Douglas Gregor DeclResult Import = Actions.ActOnModuleImport(AtLoc, ImportLoc, Path); 18736aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor ExpectAndConsumeSemi(diag::err_module_expected_semi); 18746aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (Import.isInvalid()) 18756aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 18766aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 18776aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return Actions.ConvertDeclToDeclGroup(Import.get()); 18786aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor} 18794a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1880c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseOverflow() { 1881d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, diag::err_parser_impl_limit_overflow); 1882d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.SkipUntil(tok::eof); 1883d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 18844a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 18854a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1886c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, 18874a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor const char *Msg, 18884a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor tok::TokenKind SkipToToc ) { 18894a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.Tok.getLocation(); 1890d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.ExpectAndConsume(Kind, DiagID, Msg, SkipToToc)) 1891d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 1892d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1893d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (getDepth() < MaxDepth) 1894d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return false; 1895d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1896d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return diagnoseOverflow(); 18974a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 18984a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 1899c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseMissingClose() { 1900d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor assert(!P.Tok.is(Close) && "Should have consumed closing delimiter"); 1901d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 1902d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor const char *LHSName = "unknown"; 1903b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie diag::kind DID; 1904d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor switch (Close) { 1905b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie default: llvm_unreachable("Unexpected balanced token"); 1906d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; 1907d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; 1908d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; 19094a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 1910d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, DID); 1911d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(LOpen, diag::note_matching) << LHSName; 1912b578aee665aad5ed1a46a26217c730fdfbfc8c2eDavid Blaikie if (P.SkipUntil(Close, /*StopAtSemi*/ true, /*DontConsume*/ true)) 1913b578aee665aad5ed1a46a26217c730fdfbfc8c2eDavid Blaikie LClose = P.ConsumeAnyToken(); 19144a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 19154a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 19163896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 1917c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorvoid BalancedDelimiterTracker::skipToEnd() { 19183896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor P.SkipUntil(Close, false); 19193896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor} 1920