Parser.cpp revision 68de140b5d1df4c21cbf5ef1be2abcbfbc835cb5
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Parser.cpp - C Language Family Parser ----------------------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the Parser interfaces. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Parser.h" 15500d3297d2a21edeac4d46cbcbe21bc2352c2a28Chris Lattner#include "clang/Parse/ParseDiagnostic.h" 1619510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 1719510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/Scope.h" 1819510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 190102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner#include "llvm/Support/raw_ostream.h" 20d167ca0d26e43292b8b9e8d5300d92784ae0e27dChris Lattner#include "RAIIObjectsForParser.h" 21fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar#include "ParsePragma.h" 228387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet#include "clang/AST/DeclTemplate.h" 23f986038beed360c031de8654cfba43a5d3184605Francois Pichet#include "clang/AST/ASTConsumer.h" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 2768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha Snamespace clang { 2868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 2968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S/// \brief An instance of this interface is defined to initiate OpenMP parsing, 3068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S/// and to help Parser during subsequent parsing of OpenMP constrcuts. 3168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha Sclass OpenMP { 3268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // Private Member Objects. 3368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha Sprivate: 3468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // \brief The member object reference to the Preprocessor. 3568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S Preprocessor &PP; 3668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 3768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // \brief Handler objects which handle different OpenMP pragma directive 3868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // statements. 3968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> ParallelHandler; 4068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> ForHandler; 4168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> SectionsHandler; 4268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> SectionHandler; 4368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> SingleHandler; 4468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> TaskHandler; 4568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> MasterHandler; 4668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> CriticalHandler; 4768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> BarrierHandler; 4868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> TaskwaitHandler; 4968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> TaskyieldHandler; 5068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> AtomicHandler; 5168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> FlushHandler; 5268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> OrderedHandler; 5368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OwningPtr<PragmaHandler> ThreadPrivateHandler; 5468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 5568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // \brief When an OpenMP pragma is ignored, we emit a warning message 5668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // saying so, but only once per translation unit irrespective of the 5768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // number of OpenMP pragmas appeared in the translation unit. This flag 5868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // keeps track of whether the unkown pragma warning message is emitted 5968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // or not for the current translation unit. 6068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S bool OmpUnknownWarned; 6168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 6268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // Private Member Methods. 6368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha Sprivate: 6468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // \brief When source contains omp pragmas, but user does not pass the 6568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // '-fopenmp' flag, we emit a warning message saying so, but only once per 6668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // source file. 6768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S void SetPragmaOmpUnknownWarned() { OmpUnknownWarned = true; } 6868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S void ResetPragmaOmpUnknownWarned() { OmpUnknownWarned = false; } 6968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S bool PragmaOmpUnknownWarned() { return OmpUnknownWarned; } 7068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 7168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // \brief Handles "\#pragma omp ...". 7268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // It Checks if the user has passed the flag, '-fopenmp', if so, 7368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // it enters the *token* which is *representing* the current OpenMP 7468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // pragma *directive* into the TokenStream, so that the Parser can 7568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // recognizes it and can parse the respective OpenMP pragma directive 7668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // statement. Otherwise, it reports a warning that the current OpenMP 7768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // directive statement will be ignored. However, note that only 7868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // *one* warning message per translation unit is reported 7968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // irrespective of the number of OpenMP directive statments which 8068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // appear in the translation unit. 8168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S void HandlePragma(Token &OmpTok, tok::TokenKind TKind) { 8268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S if (!PP.getLangOpts().OpenMP) { 8368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S if (!PragmaOmpUnknownWarned()) { 8468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.Diag(OmpTok, diag::warn_pragma_omp_ignored); 8568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S SetPragmaOmpUnknownWarned(); 8668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S } 8768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S } else { 8868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S Token *Toks = new Token[1]; 8968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S Toks[0].startToken(); 9068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S Toks[0].setKind(TKind); 9168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S Toks[0].setLocation(OmpTok.getLocation()); 9268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.EnterTokenStream(Toks, 1, /*DisableMacroExpansion=*/true, 9368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S /*OwnsTokens=*/false); 9468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S } 9568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S } 9668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 9768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // Constructors and Destructors. 9868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha Spublic: 9968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OpenMP(Preprocessor &pp); 10068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S ~OpenMP(); 10168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 10268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha Sprivate: 10368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // \brief An OpenMP pragma handler interface. It acts as an intermediate 10468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // between the Preprocessor class and the OpenMP (this) class. It by passes 10568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // the omp pragma handling call to OpenMP class upon requested by the 10668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // Preprocessor. 10768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S struct PragmaOmpHandler : public PragmaHandler { 10868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S friend class OpenMP; 10968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::TokenKind TKind; 11068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OpenMP *Omp; 11168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PragmaOmpHandler(tok::TokenKind Kind, StringRef Name, OpenMP *omp) 11268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S : PragmaHandler(Name), TKind(Kind), Omp(omp) {} 11368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S virtual ~PragmaOmpHandler() { Omp = 0; } 11468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S virtual void HandlePragma(Preprocessor &PP, PragmaIntroducerKind Introducer, 11568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S Token &OmpTok) { 11668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S Omp->HandlePragma(OmpTok, TKind); 11768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S } 11868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S }; 11968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S}; 12068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 12168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S} // end of namespace clang 12268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 12368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha SOpenMP::OpenMP(Preprocessor &pp) 12468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S : PP(pp) { 12568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 12668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // Add "#pragma omp ..." handlers. These are removed and destroyed 12768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // in the destructor. 12868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // 12968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // Note that OpenMP pragma annotations below are listed in the same order 13068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // as listed in the OpenMP 3.1 standard specification document. Please 13168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // do *adhere* to the same order. 13268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 13368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP parallel constructs. 13468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S ParallelHandler.reset(new PragmaOmpHandler( 13568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_parallel, "parallel", this)); 13668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", ParallelHandler.get()); 13768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 13868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP work sharing constructs. 13968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S ForHandler.reset(new PragmaOmpHandler( 14068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_for, "for", this)); 14168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", ForHandler.get()); 14268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 14368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S SectionsHandler.reset(new PragmaOmpHandler( 14468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_sections, "sections", this)); 14568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", SectionsHandler.get()); 14668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 14768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S SingleHandler.reset(new PragmaOmpHandler( 14868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_single, "single", this)); 14968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", SingleHandler.get()); 15068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 15168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S SectionHandler.reset(new PragmaOmpHandler( 15268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_section, "section", this)); 15368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", SectionHandler.get()); 15468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 15568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP combined parallel work sharing constructs. 15668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // FIXME: not supported yet. 15768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 15868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP tasking constructs. 15968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S TaskHandler.reset(new PragmaOmpHandler( 16068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_task, "task", this)); 16168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", TaskHandler.get()); 16268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 16368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S TaskyieldHandler.reset(new PragmaOmpHandler( 16468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_taskyield, "taskyield", this)); 16568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", TaskyieldHandler.get()); 16668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 16768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP master and synchronization constructs. 16868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S MasterHandler.reset(new PragmaOmpHandler( 16968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_master, "master", this)); 17068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", MasterHandler.get()); 17168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 17268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S CriticalHandler.reset(new PragmaOmpHandler( 17368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_critical, "critical", this)); 17468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", CriticalHandler.get()); 17568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 17668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S BarrierHandler.reset(new PragmaOmpHandler( 17768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_barrier, "barrier", this)); 17868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", BarrierHandler.get()); 17968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 18068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S TaskwaitHandler.reset(new PragmaOmpHandler( 18168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_taskwait, "taskwait", this)); 18268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", TaskwaitHandler.get()); 18368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 18468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S AtomicHandler.reset(new PragmaOmpHandler( 18568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_atomic, "atomic", this)); 18668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", AtomicHandler.get()); 18768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 18868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S FlushHandler.reset(new PragmaOmpHandler( 18968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_flush, "flush", this)); 19068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", FlushHandler.get()); 19168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 19268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OrderedHandler.reset(new PragmaOmpHandler( 19368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_ordered, "ordered", this)); 19468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", OrderedHandler.get()); 19568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 19668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP data environment related constructs. 19768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S ThreadPrivateHandler.reset(new PragmaOmpHandler( 19868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S tok::annot_pragma_omp_threadprivate, "threadprivate", this)); 19968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.AddPragmaHandler("omp", ThreadPrivateHandler.get()); 20068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 20168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // We have not yet reported the unknown OpenMP pragma *warning* message 20268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // as we have not yet started the processing of translation unit. 20368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S ResetPragmaOmpUnknownWarned(); 20468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S} 20568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 20668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha SOpenMP::~OpenMP() { 20768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // Remove the "#pragma omp ..." handlers we installed. 20868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // 20968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // Note that OpenMP pragma annotations below are listed in the same order 21068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // as listed in the OpenMP 3.1 standard specification document. Please 21168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // do *adhere* to the same order. 21268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 21368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP parallel constructs. 21468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", ParallelHandler.get()); 21568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S ParallelHandler.reset(); 21668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 21768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP work sharing constructs. 21868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", ForHandler.get()); 21968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S ForHandler.reset(); 22068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", SectionsHandler.get()); 22168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S SectionsHandler.reset(); 22268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", SingleHandler.get()); 22368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S SingleHandler.reset(); 22468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", SectionHandler.get()); 22568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S SectionHandler.reset(); 22668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 22768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP combined parallel work sharing constructs. 22868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // FIXME: Yet to support. 22968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 23068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP tasking constructs. 23168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", TaskHandler.get()); 23268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S TaskHandler.reset(); 23368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", TaskyieldHandler.get()); 23468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S TaskyieldHandler.reset(); 23568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 23668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP master and synchronization constructs. 23768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", MasterHandler.get()); 23868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S MasterHandler.reset(); 23968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", CriticalHandler.get()); 24068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S CriticalHandler.reset(); 24168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", BarrierHandler.get()); 24268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S BarrierHandler.reset(); 24368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", TaskwaitHandler.get()); 24468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S TaskwaitHandler.reset(); 24568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", AtomicHandler.get()); 24668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S AtomicHandler.reset(); 24768de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", FlushHandler.get()); 24868de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S FlushHandler.reset(); 24968de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", OrderedHandler.get()); 25068de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OrderedHandler.reset(); 25168de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 25268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S // OpenMP data environment related constructs. 25368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S PP.RemovePragmaHandler("omp", ThreadPrivateHandler.get()); 25468de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S ThreadPrivateHandler.reset(); 25568de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S} 25668de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 25769b5e952c56f95673064ad1815a240e0fb595865Benjamin Kramernamespace { 258aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// \brief A comment handler that passes comments found by the preprocessor 259aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko/// to the parser action. 260aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkoclass ActionCommentHandler : public CommentHandler { 261aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko Sema &S; 262aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 263aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenkopublic: 264aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko explicit ActionCommentHandler(Sema &S) : S(S) { } 265aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 266aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko virtual bool HandleComment(Preprocessor &PP, SourceRange Comment) { 267aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko S.ActOnComment(Comment); 268aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko return false; 269aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko } 270aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko}; 27169b5e952c56f95673064ad1815a240e0fb595865Benjamin Kramer} // end anonymous namespace 272aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 273b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas GregorIdentifierInfo *Parser::getSEHExceptKeyword() { 274b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor // __except is accepted as a (contextual) keyword 2754e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!Ident__except && (getLangOpts().MicrosoftExt || getLangOpts().Borland)) 276b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = PP.getIdentifierInfo("__except"); 277b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 278b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor return Ident__except; 279b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor} 280b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 2816a91d385618ea4d28236c496f540a26877c95525Erik VerbruggenParser::Parser(Preprocessor &pp, Sema &actions, bool SkipFunctionBodies) 282614f96a7cf94805c2d336639300b62dc2f54e9e0Ted Kremenek : PP(pp), Actions(actions), Diags(PP.getDiagnostics()), 2830fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor GreaterThanIsOperator(true), ColonIsSacred(false), 2846a91d385618ea4d28236c496f540a26877c95525Erik Verbruggen InMessageExpression(false), TemplateParameterDepth(0), 28594f29f4bf5d6b49dd1b7fc16cfa1521adc0c71c0Jordan Rose ParsingInObjCContainer(false), SkipFunctionBodies(SkipFunctionBodies) { 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.setKind(tok::eof); 28723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 2889e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner NumCachedScopes = 0; 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenCount = BracketCount = BraceCount = 0; 290849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl = 0; 291fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 292fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Add #pragma handlers. These are removed and destroyed in the 293fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // destructor. 2949595c7e2533c836537dc300e75d059c29feb7094Eli Friedman AlignHandler.reset(new PragmaAlignHandler()); 295cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.AddPragmaHandler(AlignHandler.get()); 296cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar 2979595c7e2533c836537dc300e75d059c29feb7094Eli Friedman GCCVisibilityHandler.reset(new PragmaGCCVisibilityHandler()); 298aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.AddPragmaHandler("GCC", GCCVisibilityHandler.get()); 299aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman 3009595c7e2533c836537dc300e75d059c29feb7094Eli Friedman OptionsHandler.reset(new PragmaOptionsHandler()); 3019b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(OptionsHandler.get()); 3029b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 3039595c7e2533c836537dc300e75d059c29feb7094Eli Friedman PackHandler.reset(new PragmaPackHandler()); 3049b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(PackHandler.get()); 30562c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian 3069595c7e2533c836537dc300e75d059c29feb7094Eli Friedman MSStructHandler.reset(new PragmaMSStructHandler()); 30762c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.AddPragmaHandler(MSStructHandler.get()); 3089b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 3099595c7e2533c836537dc300e75d059c29feb7094Eli Friedman UnusedHandler.reset(new PragmaUnusedHandler()); 3109b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(UnusedHandler.get()); 3119b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis 3129595c7e2533c836537dc300e75d059c29feb7094Eli Friedman WeakHandler.reset(new PragmaWeakHandler()); 3139b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.AddPragmaHandler(WeakHandler.get()); 314321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne 3159595c7e2533c836537dc300e75d059c29feb7094Eli Friedman RedefineExtnameHandler.reset(new PragmaRedefineExtnameHandler()); 3165f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.AddPragmaHandler(RedefineExtnameHandler.get()); 3175f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall 3189595c7e2533c836537dc300e75d059c29feb7094Eli Friedman FPContractHandler.reset(new PragmaFPContractHandler()); 319321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.AddPragmaHandler("STDC", FPContractHandler.get()); 320f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 3214e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 3229595c7e2533c836537dc300e75d059c29feb7094Eli Friedman OpenCLExtensionHandler.reset(new PragmaOpenCLExtensionHandler()); 323f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 324f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 325f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.AddPragmaHandler("OPENCL", FPContractHandler.get()); 326f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 327aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 328056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko CommentSemaHandler.reset(new ActionCommentHandler(actions)); 329056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.addCommentHandler(CommentSemaHandler.get()); 330aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 331f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.setCodeCompletionHandler(*this); 33268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 33368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OpenMPHandler.reset(new OpenMP(pp)); 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3360102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// If a crash happens while the parser is active, print out a line indicating 3370102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// what the current token is. 3385f9e272e632e951b1efe824cd16acb4d96077930Chris Lattnervoid PrettyStackTraceParserEntry::print(raw_ostream &OS) const { 3390102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &Tok = P.getCurToken(); 340ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.is(tok::eof)) { 3410102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner OS << "<eof> parser at end of file\n"; 3420102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner return; 3430102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner } 3441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 345ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner if (Tok.getLocation().isInvalid()) { 346ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner OS << "<unknown> parser at unknown location\n"; 347ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner return; 348ddcbc0a72a04a5ae2493088f1437200a9ea480b1Chris Lattner } 3491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3500102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Preprocessor &PP = P.getPreprocessor(); 3510102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Tok.getLocation().print(OS, PP.getSourceManager()); 3529fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar if (Tok.isAnnotation()) 3539fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": at annotation token \n"; 3549fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar else 3559fa31dd71e0414e2ca905380e2f8d42710b22c82Daniel Dunbar OS << ": current parser token '" << PP.getSpelling(Tok) << "'\n"; 356f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor} 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3580102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 3593cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(SourceLocation Loc, unsigned DiagID) { 36033e4e70c8c0a17e0ccb7465d96556b077a68ecb1Argyrios Kyrtzidis return Diags.Report(Loc, DiagID); 3611ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner} 3621ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner 3633cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris LattnerDiagnosticBuilder Parser::Diag(const Token &Tok, unsigned DiagID) { 3641ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner return Diag(Tok.getLocation(), DiagID); 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3674b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \brief Emits a diagnostic suggesting parentheses surrounding a 3684b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// given range. 3694b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// 3704b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param Loc The location where we'll emit the diagnostic. 37170517ca5c07c4b41ff8662b94ee22047b0299f8cDmitri Gribenko/// \param DK The kind of diagnostic to emit. 3724b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor/// \param ParenRange Source range enclosing code that should be parenthesized. 3734b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregorvoid Parser::SuggestParentheses(SourceLocation Loc, unsigned DK, 3744b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange) { 375b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(ParenRange.getEnd()); 376b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor if (!ParenRange.getEnd().isFileID() || EndLoc.isInvalid()) { 3774b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // We can't display the parentheses, so just dig the 3784b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // warning/error and return. 3794b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Loc, DK); 3804b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return; 3814b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } 3821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(Loc, DK) 384849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(ParenRange.getBegin(), "(") 385849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, ")"); 3864b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor} 3874b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 388837b1a37116cf4e64f8bb7db34982dee1fba7647John McCallstatic bool IsCommonTypo(tok::TokenKind ExpectedTok, const Token &Tok) { 389837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall switch (ExpectedTok) { 3904b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith case tok::semi: 3914b0824229b96d024a96f3c7dd75ab70652c05c5bRichard Smith return Tok.is(tok::colon) || Tok.is(tok::comma); // : or , for ; 392837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall default: return false; 393837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 394837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall} 395837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 3965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 3975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// input. If so, it is consumed and false is returned. 3985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If the input is malformed, this emits the specified diagnostic. Next, if 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 4015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// returned. 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerbool Parser::ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned DiagID, 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *Msg, tok::TokenKind SkipToTok) { 404dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(ExpectedTok) || Tok.is(tok::code_completion)) { 4055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 4065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 4075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 408a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 409837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Detect common single-character typos and resume. 410837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall if (IsCommonTypo(ExpectedTok, Tok)) { 411837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall SourceLocation Loc = Tok.getLocation(); 412837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall Diag(Loc, DiagID) 413837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << Msg 414837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall << FixItHint::CreateReplacement(SourceRange(Loc), 415837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall getTokenSimpleSpelling(ExpectedTok)); 416837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall ConsumeAnyToken(); 417837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 418837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall // Pretend there wasn't a problem. 419837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall return false; 420837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall } 421837b1a37116cf4e64f8bb7db34982dee1fba7647John McCall 4224b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor const char *Spelling = 0; 423b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor SourceLocation EndLoc = PP.getLocForEndOfToken(PrevTokLocation); 4241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (EndLoc.isValid() && 425b2fb6de9070fea9abc56c8e8d5469066e964cefeDouglas Gregor (Spelling = tok::getTokenSimpleSpelling(ExpectedTok))) { 4264b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // Show what code to insert to fix this problem. 4271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Diag(EndLoc, DiagID) 4284b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor << Msg 429849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateInsertion(EndLoc, Spelling); 4304b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor } else 4314b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor Diag(Tok, DiagID) << Msg; 4324b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 4335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (SkipToTok != tok::unknown) 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(SkipToTok); 4355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 4365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4389ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregorbool Parser::ExpectAndConsumeSemi(unsigned DiagID) { 4399ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if (Tok.is(tok::semi) || Tok.is(tok::code_completion)) { 440fb5825dca4e95fee463fdeaddb8b729294fb4d10Douglas Gregor ConsumeToken(); 4419ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 4429ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 4439ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 4449ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor if ((Tok.is(tok::r_paren) || Tok.is(tok::r_square)) && 4459ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor NextToken().is(tok::semi)) { 4469ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor Diag(Tok, diag::err_extraneous_token_before_semi) 4479ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << PP.getSpelling(Tok) 4489ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor << FixItHint::CreateRemoval(Tok.getLocation()); 4499ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeAnyToken(); // The ')' or ']'. 4509ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor ConsumeToken(); // The ';'. 4519ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return false; 4529ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor } 4539ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 4549ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor return ExpectAndConsume(tok::semi, DiagID); 4559ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor} 4569ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 457eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smithvoid Parser::ConsumeExtraSemi(ExtraSemiKind Kind, unsigned TST) { 4584b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu if (!Tok.is(tok::semi)) return; 4594b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 460eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith bool HadMultipleSemis = false; 4614b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation StartLoc = Tok.getLocation(); 4624b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu SourceLocation EndLoc = Tok.getLocation(); 4634b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 4644b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 4654b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu while ((Tok.is(tok::semi) && !Tok.isAtStartOfLine())) { 466eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith HadMultipleSemis = true; 4674b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu EndLoc = Tok.getLocation(); 4684b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeToken(); 4694b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 4704b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 471eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // C++11 allows extra semicolons at namespace scope, but not in any of the 472eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // other contexts. 473eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind == OutsideFunction && getLangOpts().CPlusPlus) { 474eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (getLangOpts().CPlusPlus0x) 475eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_cxx98_compat_top_level_semi) 476eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 477eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 478eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi_cxx11) 479eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 4804b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu return; 4814b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu } 4824b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 483eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith if (Kind != AfterMemberFunctionDefinition || HadMultipleSemis) 484eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::ext_extra_semi) 485eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << Kind << DeclSpec::getSpecifierName((DeclSpec::TST)TST) 486eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 487eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith else 488eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith // A single semicolon is valid after a member function definition. 489eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith Diag(StartLoc, diag::warn_extra_semi_after_mem_fn_def) 490eab9d6f9065b042d39fbaf9842c9d8cc968dd6d0Richard Smith << FixItHint::CreateRemoval(SourceRange(StartLoc, EndLoc)); 4914b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu} 4924b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu 4935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Error recovery. 4955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// SkipUntil - Read tokens until we get to the specified token, then consume 498012cf464254804279efa84e21b4b493dde76c5f1Chris Lattner/// it (unless DontConsume is true). Because we cannot guarantee that the 4995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// token will ever occur, this skips to the next token, or to some likely 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 5015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// character. 502a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// If SkipUntil finds the specified token, it returns true, otherwise it 504a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// returns false. 505eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikiebool Parser::SkipUntil(ArrayRef<tok::TokenKind> Toks, bool StopAtSemi, 506eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie bool DontConsume, bool StopAtCodeCompletion) { 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We always want this function to skip at least one token if the first token 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // isn't T and if not at EOF. 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isFirstTokenSkipped = true; 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we found one of the tokens, stop and return true. 512eb52f86a62db523e3c993686b3ed92c55d59d53cDavid Blaikie for (unsigned i = 0, NumToks = Toks.size(); i != NumToks; ++i) { 513000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(Toks[i])) { 5145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DontConsume) { 5155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Noop, don't consume the token. 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 5175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeAnyToken(); 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return true; 5205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 522a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::eof: 5255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ran out of tokens. 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 527dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 528dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor case tok::code_completion: 5293437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis if (!StopAtCodeCompletion) 5303437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis ConsumeToken(); 531dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return false; 532dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_paren: 5345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested parens. 5355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 5363437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_paren, false, false, StopAtCodeCompletion); 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 5385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_square: 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested square brackets. 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 5413437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_square, false, false, StopAtCodeCompletion); 5425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 5435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::l_brace: 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Recursively skip properly-nested braces. 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 5463437f1f1294499d4ef306c1089fcb3e29ec2aa68Argyrios Kyrtzidis SkipUntil(tok::r_brace, false, false, StopAtCodeCompletion); 5475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 548a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Okay, we found a ']' or '}' or ')', which we think should be balanced. 5505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Since the user wasn't looking for this token (if they were, it would 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // already be handled), this isn't balanced. If there is a LHS token at a 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // higher level, we will assume that this matches the unbalanced token 5535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // and return it. Otherwise, this is a spurious RHS token, which we skip. 5545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_paren: 5555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ParenCount && !isFirstTokenSkipped) 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 5575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeParen(); 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 5595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_square: 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BracketCount && !isFirstTokenSkipped) 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBracket(); 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::r_brace: 5655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (BraceCount && !isFirstTokenSkipped) 5665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; // Matches something. 5675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeBrace(); 5685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 569a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::string_literal: 5715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::wide_string_literal: 5725cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf8_string_literal: 5735cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf16_string_literal: 5745cee1195584fa8672253139c86e922daeda69b9eDouglas Gregor case tok::utf32_string_literal: 5755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeStringToken(); 5765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 57755edca9d7d6a50cbda6f036b05a0cb8d42f5a010Fariborz Jahanian 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 5795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (StopAtSemi) 5805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 5815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FALL THROUGH. 5825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip this token. 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 5865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer isFirstTokenSkipped = false; 588a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump } 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Scope manipulation 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// EnterScope - Start a new scope. 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::EnterScope(unsigned ScopeFlags) { 5979e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes) { 5989e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *N = ScopeCache[--NumCachedScopes]; 59923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor N->Init(getCurScope(), ScopeFlags); 60023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = N; 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 6029c4eb1f3438370355f51dc8c62f2ca4803e3338dArgyrios Kyrtzidis Actions.CurScope = new Scope(getCurScope(), ScopeFlags, Diags); 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ExitScope - Pop a scope off the scope stack. 6075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ExitScope() { 60823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() && "Scope imbalance!"); 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 61090ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // Inform the actions module that this scope is going away if there are any 61190ae68aae98f12fe1950c63e2f6bd0fabce6cb1eChris Lattner // decls in it. 61223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (!getCurScope()->decl_empty()) 61323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnPopScope(Tok.getLocation(), getCurScope()); 614a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 61523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *OldScope = getCurScope(); 61623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = OldScope->getParent(); 617a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 6189e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner if (NumCachedScopes == ScopeCacheSize) 6199e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete OldScope; 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 6219e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner ScopeCache[NumCachedScopes++] = OldScope; 6225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6247a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Set the flags for the current scope to ScopeFlags. If ManageFlags is false, 6257a614d8380297fcd2bc23986241905d97222948cRichard Smith/// this object does nothing. 6267a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::ParseScopeFlags(Parser *Self, unsigned ScopeFlags, 6277a614d8380297fcd2bc23986241905d97222948cRichard Smith bool ManageFlags) 6287a614d8380297fcd2bc23986241905d97222948cRichard Smith : CurScope(ManageFlags ? Self->getCurScope() : 0) { 6297a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) { 6307a614d8380297fcd2bc23986241905d97222948cRichard Smith OldFlags = CurScope->getFlags(); 6317a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(ScopeFlags); 6327a614d8380297fcd2bc23986241905d97222948cRichard Smith } 6337a614d8380297fcd2bc23986241905d97222948cRichard Smith} 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6357a614d8380297fcd2bc23986241905d97222948cRichard Smith/// Restore the flags for the current scope to what they were before this 6367a614d8380297fcd2bc23986241905d97222948cRichard Smith/// object overrode them. 6377a614d8380297fcd2bc23986241905d97222948cRichard SmithParser::ParseScopeFlags::~ParseScopeFlags() { 6387a614d8380297fcd2bc23986241905d97222948cRichard Smith if (CurScope) 6397a614d8380297fcd2bc23986241905d97222948cRichard Smith CurScope->setFlags(OldFlags); 6407a614d8380297fcd2bc23986241905d97222948cRichard Smith} 6415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// C99 6.9: External Definitions. 6455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::~Parser() { 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we still have scopes active, delete the scope tree. 64923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor delete getCurScope(); 65023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CurScope = 0; 65123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor 6525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Free the scope cache. 6539e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner for (unsigned i = 0, e = NumCachedScopes; i != e; ++i) 6549e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner delete ScopeCache[i]; 655fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 6568387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Free LateParsedTemplatedFunction nodes. 6578387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet for (LateParsedTemplateMapT::iterator it = LateParsedTemplateMap.begin(); 6588387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet it != LateParsedTemplateMap.end(); ++it) 6598387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet delete it->second; 6608387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 661fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar // Remove the pragma handlers we installed. 662cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar PP.RemovePragmaHandler(AlignHandler.get()); 663cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar AlignHandler.reset(); 664aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman PP.RemovePragmaHandler("GCC", GCCVisibilityHandler.get()); 665aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman GCCVisibilityHandler.reset(); 6669b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(OptionsHandler.get()); 667861800c676004eabed5927f0552620d06c80a40aDaniel Dunbar OptionsHandler.reset(); 6689b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(PackHandler.get()); 6694726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek PackHandler.reset(); 67062c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian PP.RemovePragmaHandler(MSStructHandler.get()); 67162c9258f4a71569a66d805fc7776526a2c76b34eFariborz Jahanian MSStructHandler.reset(); 6729b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(UnusedHandler.get()); 6734726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek UnusedHandler.reset(); 6749b36c3f0de0105e903130bbda3c4aea7d792c0afArgyrios Kyrtzidis PP.RemovePragmaHandler(WeakHandler.get()); 6759991479ad5dde617168cc1e4b18425cdbbfd9fa9Eli Friedman WeakHandler.reset(); 6765f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall PP.RemovePragmaHandler(RedefineExtnameHandler.get()); 6775f3c163b7b19a0c7e02509a0984ee1256bca890dDavid Chisnall RedefineExtnameHandler.reset(); 678f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 6794e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().OpenCL) { 680f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", OpenCLExtensionHandler.get()); 681f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne OpenCLExtensionHandler.reset(); 682f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne PP.RemovePragmaHandler("OPENCL", FPContractHandler.get()); 683f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne } 684f315fa81eef1977b3457fd7a7d4639e060fe7278Peter Collingbourne 685321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne PP.RemovePragmaHandler("STDC", FPContractHandler.get()); 686321b8179afaf803dcc56b2a19f7b0891a03c92c8Peter Collingbourne FPContractHandler.reset(); 687aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 688056e2c30050a94141150ba561268d90b4d18e378Dmitri Gribenko PP.removeCommentHandler(CommentSemaHandler.get()); 689aa0cd85838f2a024e589ea4e8c2094130065af21Dmitri Gribenko 690f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor PP.clearCodeCompletionHandler(); 69113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 69268de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S OpenMPHandler.reset(); 69368de140b5d1df4c21cbf5ef1be2abcbfbc835cb5Mahesha S 69413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer assert(TemplateIds.empty() && "Still alive TemplateIdAnnotations around?"); 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Initialize - Warm up the parser. 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::Initialize() { 70031e057270232c1c37602579cb6461c2704175672Chris Lattner // Create the translation unit scope. Install it as the current scope. 70123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "A scope is already active?"); 70231e057270232c1c37602579cb6461c2704175672Chris Lattner EnterScope(Scope::DeclScope); 703c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor Actions.ActOnTranslationUnitScope(getCurScope()); 704c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor 705c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor // Prime the lexer look-ahead. 706c1a3e5e73859ece9f106ae9d84c78bef4111956aDouglas Gregor ConsumeToken(); 707a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 70834870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Initialization for Objective-C context sensitive keywords recognition. 709a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek // Referenced in Parser::ParseObjCTypeQualifierList. 7104e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1) { 711a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_in] = &PP.getIdentifierTable().get("in"); 712a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_out] = &PP.getIdentifierTable().get("out"); 713a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_inout] = &PP.getIdentifierTable().get("inout"); 714a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_oneway] = &PP.getIdentifierTable().get("oneway"); 715a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_bycopy] = &PP.getIdentifierTable().get("bycopy"); 716a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek ObjCTypeQuals[objc_byref] = &PP.getIdentifierTable().get("byref"); 71734870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner } 718662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 719e97179c675b341927807c718be215c8d1aab8acbDouglas Gregor Ident_instancetype = 0; 7207eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_final = 0; 7217eeb4ec11043d4860361348f2b19299d957d47a9Anders Carlsson Ident_override = 0; 7221f3b6fdabbb10779a473d6315154d7325ce20aeaAnders Carlsson 723662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar Ident_super = &PP.getIdentifierTable().get("super"); 72482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 7254e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().AltiVec) { 72682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_vector = &PP.getIdentifierTable().get("vector"); 72782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson Ident_pixel = &PP.getIdentifierTable().get("pixel"); 72882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 7290a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 7300a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_introduced = 0; 7310a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_deprecated = 0; 7320a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor Ident_obsoleted = 0; 733b53e417ba487f4193ef3b0485b420e0fdae643a2Douglas Gregor Ident_unavailable = 0; 73428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 735b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor Ident__except = 0; 736b57791e5b40afa6691063c83d0e95c416fb19fdeDouglas Gregor 73728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = Ident__exception_info = Ident__abnormal_termination = 0; 73828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = Ident___exception_info = Ident___abnormal_termination = 0; 73928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = Ident_GetExceptionInfo = Ident_AbnormalTermination = 0; 74028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 7414e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if(getLangOpts().Borland) { 74228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_info = PP.getIdentifierInfo("_exception_info"); 74328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_info = PP.getIdentifierInfo("__exception_info"); 74428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionInfo = PP.getIdentifierInfo("GetExceptionInformation"); 74528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__exception_code = PP.getIdentifierInfo("_exception_code"); 74628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___exception_code = PP.getIdentifierInfo("__exception_code"); 74728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_GetExceptionCode = PP.getIdentifierInfo("GetExceptionCode"); 74828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident__abnormal_termination = PP.getIdentifierInfo("_abnormal_termination"); 74928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident___abnormal_termination = PP.getIdentifierInfo("__abnormal_termination"); 75028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley Ident_AbnormalTermination = PP.getIdentifierInfo("AbnormalTermination"); 75128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley 75228bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_code,diag::err_seh___except_block); 75328bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_code,diag::err_seh___except_block); 75428bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionCode,diag::err_seh___except_block); 75528bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__exception_info,diag::err_seh___except_filter); 75628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___exception_info,diag::err_seh___except_filter); 75728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_GetExceptionInfo,diag::err_seh___except_filter); 75828bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident__abnormal_termination,diag::err_seh___finally_block); 75928bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident___abnormal_termination,diag::err_seh___finally_block); 76028bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PP.SetPoisonReason(Ident_AbnormalTermination,diag::err_seh___finally_block); 76128bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley } 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 76413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramernamespace { 76513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// \brief RAIIObject to destroy the contents of a SmallVector of 76613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer /// TemplateIdAnnotation pointers and clear the vector. 76713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer class DestroyTemplateIdAnnotationsRAIIObj { 76813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer SmallVectorImpl<TemplateIdAnnotation *> &Container; 76913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer public: 77013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj(SmallVectorImpl<TemplateIdAnnotation *> 77113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer &Container) 77213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer : Container(Container) {} 77313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 77413bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer ~DestroyTemplateIdAnnotationsRAIIObj() { 77513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer for (SmallVectorImpl<TemplateIdAnnotation *>::iterator I = 77613bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.begin(), E = Container.end(); 77713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer I != E; ++I) 77813bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer (*I)->Destroy(); 77913bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer Container.clear(); 78013bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer } 78113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer }; 78213bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer} 78313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTopLevelDecl - Parse one top-level declaration, return whatever the 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// action tells us to. This returns true if the EOF was encountered. 786682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattnerbool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result) { 78713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 788b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 789e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // Skip over the EOF token, flagging end of previous input for incremental 790e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann // processing 791e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (PP.isIncrementalProcessingEnabled() && Tok.is(tok::eof)) 792e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann ConsumeToken(); 793e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 794b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis while (Tok.is(tok::annot_pragma_unused)) 795b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis HandlePragmaUnused(); 796b918d0f5d8f147e1e26c34e6cf42a79af2d2ec41Argyrios Kyrtzidis 797682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Result = DeclGroupPtrTy(); 7989299f3fa85796613cc787a2062c9562d07c8613eChris Lattner if (Tok.is(tok::eof)) { 7998387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // Late template parsing can begin. 8004e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing) 8018387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.SetLateTemplateParser(LateTemplateParserCallback, this); 802e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann if (!PP.isIncrementalProcessingEnabled()) 803e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann Actions.ActOnEndOfTranslationUnit(); 804e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann //else don't tell Sema that we ended parsing: more input might come. 8058387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 8069299f3fa85796613cc787a2062c9562d07c8613eChris Lattner return true; 8079299f3fa85796613cc787a2062c9562d07c8613eChris Lattner } 808a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 8090b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributesWithRange attrs(AttrFactory); 8107f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseCXX0XAttributes(attrs); 8117f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseMicrosoftAttributes(attrs); 812e55329d6834647ba0e06f8a319e5d84c77310035Axel Naumann 8137f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall Result = ParseExternalDeclaration(attrs); 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return false; 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseTranslationUnit: 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// translation-unit: [C99 6.9] 819a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// external-declaration 820a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// translation-unit external-declaration 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseTranslationUnit() { 8228935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Initialize(); 823a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 824682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy Res; 82589307ffaf8acf4d6fdffd72b607ca4fbcfdffc9dSteve Naroff while (!ParseTopLevelDecl(Res)) 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /*parse them all*/; 8271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82806f548596beef4c0a227a45cba996497f99566c0Chris Lattner ExitScope(); 82923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor assert(getCurScope() == 0 && "Scope imbalance!"); 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseExternalDeclaration: 83390b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner/// 834c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// external-declaration: [C99 6.9], declaration: [C++ dcl.dcl] 835c3018153a11afe91849748a93d920040a571b76cChris Lattner/// function-definition 836c3018153a11afe91849748a93d920040a571b76cChris Lattner/// declaration 837a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition 839c3018153a11afe91849748a93d920040a571b76cChris Lattner/// [GNU] __extension__ external-declaration 8405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-definition 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-class-declaration 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-alias-declaration 8435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-protocol-definition 8445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] objc-method-definition 8455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OBJC] @end 846c19923dda3d28f67aab4726cd40bb07032758383Douglas Gregor/// [C++] linkage-specification 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-definition: 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// simple-asm-expr ';' 8495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 850a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// [C++0x] empty-declaration: 851a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// ';' 852a1d71aea847a50b3acbd187d2ae9e5c1ead0f4e2Douglas Gregor/// 85345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor/// [C++0x/GNU] 'extern' 'template' declaration 8547f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::DeclGroupPtrTy 8557f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCallParser::ParseExternalDeclaration(ParsedAttributesWithRange &attrs, 8567f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ParsingDeclSpec *DS) { 85713bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer DestroyTemplateIdAnnotationsRAIIObj CleanupRAII(TemplateIds); 85836d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis ParenBraceBracketBalancer BalancerRAIIObj(*this); 8597d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 8607d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis if (PP.isCodeCompletionReached()) { 8617d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 8627d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 8637d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis } 8647d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 865d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *SingleDecl = 0; 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Tok.getKind()) { 867426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola case tok::annot_pragma_vis: 868426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola HandlePragmaVisibility(); 869426fc94ed3bce15b55c43692537e3833388f0352Rafael Espindola return DeclGroupPtrTy(); 870aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman case tok::annot_pragma_pack: 871aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman HandlePragmaPack(); 872aa5ab26ed93382b812147f532dcbf4afb5494040Eli Friedman return DeclGroupPtrTy(); 8739595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_msstruct: 8749595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaMSStruct(); 8759595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 8769595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_align: 8779595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaAlign(); 8789595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 8799595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weak: 8809595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeak(); 8819595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 8829595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_weakalias: 8839595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaWeakAlias(); 8849595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 8859595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_redefine_extname: 8869595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaRedefineExtname(); 8879595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 8889595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_fp_contract: 8899595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaFPContract(); 8909595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 8919595c7e2533c836537dc300e75d059c29feb7094Eli Friedman case tok::annot_pragma_opencl_extension: 8929595c7e2533c836537dc300e75d059c29feb7094Eli Friedman HandlePragmaOpenCLExtension(); 8939595c7e2533c836537dc300e75d059c29feb7094Eli Friedman return DeclGroupPtrTy(); 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::semi: 8954b0e6f1da341510c1ad83eaf4c836f3134d0156aRichard Trieu ConsumeExtraSemi(OutsideFunction); 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // TODO: Invoke action for top-level semicolon. 897682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 89890b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::r_brace: 899883692ebd421c40b44e2c2665e5f54dade5621bcNico Weber Diag(Tok, diag::err_extraneous_closing_brace); 90090b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner ConsumeBrace(); 901682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 90290b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner case tok::eof: 90390b93d6f6961edd8f17e089253d655892adc1ef7Chris Lattner Diag(Tok, diag::err_expected_external_declaration); 904682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 905c3018153a11afe91849748a93d920040a571b76cChris Lattner case tok::kw___extension__: { 906c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner // __extension__ silences extension warnings in the subexpression. 907c46d1a1f8af67a87689d7db9eaf96027282ccaeaChris Lattner ExtensionRAIIObject O(Diags); // Use RAII to do this. 90839146d6497ad5e7ca8ef639221e7b3e15d07c888Chris Lattner ConsumeToken(); 9097f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseExternalDeclaration(attrs); 910c3018153a11afe91849748a93d920040a571b76cChris Lattner } 911dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson case tok::kw_asm: { 9127f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall ProhibitAttributes(attrs); 913bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 91421e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation StartLoc = Tok.getLocation(); 91521e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SourceLocation EndLoc; 91621e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara ExprResult Result(ParseSimpleAsm(&EndLoc)); 917a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 9183f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 9193f9424f3206b834b5dd0e7c403348651ab6fafbbAnders Carlsson "top-level asm block"); 920dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson 921682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner if (Result.isInvalid()) 922682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 92321e006e51a7f9889f55f5bc7b3ca8b50d17571ecAbramo Bagnara SingleDecl = Actions.ActOnFileScopeAsmDecl(Result.get(), StartLoc, EndLoc); 924682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 925dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson } 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::at: 92795ed7784a335aca53b0c6e952cf31a4cfb633360Fariborz Jahanian return ParseObjCAtDirectives(); 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::minus: 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::plus: 9304e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().ObjC1) { 931682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner Diag(Tok, diag::err_expected_external_declaration); 932682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner ConsumeToken(); 933682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 934682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 935682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner SingleDecl = ParseObjCMethodDefinition(); 936682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner break; 937791215b7a24666912c0b71175d2ca5ba082f666eDouglas Gregor case tok::code_completion: 93823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOrdinaryName(getCurScope(), 939849639d8b548519cc5a00c0c9253f0c0d525060dArgyrios Kyrtzidis CurParsedObjCImpl? Sema::PCC_ObjCImplementation 940f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall : Sema::PCC_Namespace); 9417d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 9427d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return DeclGroupPtrTy(); 943f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor case tok::kw_using: 9448f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner case tok::kw_namespace: 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_typedef: 946adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_template: 947adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor case tok::kw_export: // As in 'export template' 948511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson case tok::kw_static_assert: 949c6eb44b321c543c5bcf28727228a0cceced57e2ePeter Collingbourne case tok::kw__Static_assert: 95026d6023cb0d343bf8fc8836f97d39709bbd4afa0Chad Rosier // A function definition cannot start with any of these keywords. 95197144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner { 95297144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation DeclEnd; 9534e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 9547f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 95597144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner } 956d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 9577306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_static: 9587306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'static' prior to a template instantiation. This is 9597306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 9604e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 9617306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 9627306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 0; 963d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation DeclEnd; 9644e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 9657f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 9667306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 9677306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor goto dont_know; 9687306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 9697306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor case tok::kw_inline: 9704e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) { 9717306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor tok::TokenKind NextKind = NextToken().getKind(); 9727306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 9737306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Inline namespaces. Allowed as an extension even in C++03. 9747306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_namespace) { 9757306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 9764e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 9777f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 9787306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 9797306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor 9807306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // Parse (then ignore) 'inline' prior to a template instantiation. This is 9817306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor // a GCC extension that we intentionally do not support. 9827306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor if (NextKind == tok::kw_template) { 9837306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor Diag(ConsumeToken(), diag::warn_static_inline_explicit_inst_ignored) 9847306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor << 1; 9857306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor SourceLocation DeclEnd; 9864e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer StmtVector Stmts; 9877f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclaration(Stmts, Declarator::FileContext, DeclEnd, attrs); 9887306ebfacfa51ba5270fd20f162f62d2ed813485Douglas Gregor } 989d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl } 990d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 991d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl 99245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor case tok::kw_extern: 9934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && NextToken().is(tok::kw_template)) { 99445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // Extern templates 99545f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc = ConsumeToken(); 99645f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc = ConsumeToken(); 9974e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(ExternLoc, getLangOpts().CPlusPlus0x ? 9989324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::warn_cxx98_compat_extern_template : 9999324583ad2afd09db8c9967cd05c4fa44bac9555Richard Smith diag::ext_extern_template) << SourceRange(ExternLoc, TemplateLoc); 100045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation DeclEnd; 100145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor return Actions.ConvertDeclToDeclGroup( 10029241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ParseExplicitInstantiation(Declarator::FileContext, 10039241057266d3460392cbb7fec6ec942d3330ece3Argyrios Kyrtzidis ExternLoc, TemplateLoc, DeclEnd)); 100445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor } 100545f965581935791a018df829a14dff53c1dd8f47Douglas Gregor // FIXME: Detect C++ linkage specifications here? 1006d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl goto dont_know; 10071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1008f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_exists: 1009f986038beed360c031de8654cfba43a5d3184605Francois Pichet case tok::kw___if_not_exists: 1010563a645de82231a55e221fe655b7188bf8369662Francois Pichet ParseMicrosoftIfExistsExternalDeclaration(); 1011f986038beed360c031de8654cfba43a5d3184605Francois Pichet return DeclGroupPtrTy(); 10126aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: 1014d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl dont_know: 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We can't tell whether this is a function-definition or declaration yet. 10167f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall if (DS) { 10172edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclarationOrFunctionDefinition(attrs, DS); 10187f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } else { 10197f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall return ParseDeclarationOrFunctionDefinition(attrs); 10207f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall } 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1023682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // This routine returns a DeclGroup, if the thing we parsed only contains a 1024682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner // single decl, convert it now. 1025682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(SingleDecl); 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10281426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 10291426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, continues a declaration or declaration list. 1030e4246a633b13197634225971b25df0cbdcec0c5dSean Huntbool Parser::isDeclarationAfterDeclarator() { 1031e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt // Check for '= delete' or '= default' 10324e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 1033e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 1034e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt if (KW.is(tok::kw_default) || KW.is(tok::kw_delete)) 1035e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return false; 1036e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 10376c89eafc90f5c51a0bf185a993961170aee530c2Fariborz Jahanian 10381426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor return Tok.is(tok::equal) || // int X()= -> not a function def 10391426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::comma) || // int X(), -> not a function def 10401426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::semi) || // int X(); -> not a function def 10411426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw_asm) || // int X() __asm__ -> not a function def 10421426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor Tok.is(tok::kw___attribute) || // int X() __attr__ -> not a function def 10434e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (getLangOpts().CPlusPlus && 104439700f81c5b42e6be93be10275602915f872fc86Fariborz Jahanian Tok.is(tok::l_paren)); // int X(0) -> not a function def [C++] 10451426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 10461426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 10471426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// \brief Determine whether the current token, if it occurs after a 10481426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor/// declarator, indicates the start of a function definition. 1049004659a56916f2f81ede507c12516c146d6c0df3Chris Lattnerbool Parser::isStartOfFunctionDefinition(const ParsingDeclarator &Declarator) { 1050075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara assert(Declarator.isFunctionDeclarator() && "Isn't a function declarator"); 10515d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner if (Tok.is(tok::l_brace)) // int X() {} 10525d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return true; 10535d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner 1054004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner // Handle K&R C argument lists: int X(f) int f; {} 10554e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus && 1056075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara Declarator.getFunctionTypeInfo().isKNRPrototype()) 1057004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner return isDeclarationSpecifier(); 1058e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt 10594e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::equal)) { 1060e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt const Token &KW = NextToken(); 1061e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt return KW.is(tok::kw_default) || KW.is(tok::kw_delete); 1062e4246a633b13197634225971b25df0cbdcec0c5dSean Hunt } 1063004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner 10645d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner return Tok.is(tok::colon) || // X() : Base() {} (used for ctors) 10655d1c6198cfe55f8de025902c621c0721b640ff60Chris Lattner Tok.is(tok::kw_try); // X() try { ... } 10661426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor} 10671426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseDeclarationOrFunctionDefinition - Parse either a function-definition or 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// a declaration. We can't tell which we have until we read up to the 1070c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// compound-statement in function-definition. TemplateParams, if 1071c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor/// non-NULL, provides the template parameters when we're parsing a 10721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// C++ template-declaration. 10735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// function-definition: [C99 6.9.1] 1075a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 1076a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 1077a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 1078a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// declaration: [C99 6.7] 1080697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// declaration-specifiers init-declarator-list[opt] ';' 1081697e15f2a028f8997cccb24ecd05099988cfb1a9Chris Lattner/// [!C99] init-declarator-list ';' [TODO: warn in c99 mode] 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [OMP] threadprivate-directive [TODO] 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1084682bf92db408a6cbc3d37b5496a99b6ef85041ecChris LattnerParser::DeclGroupPtrTy 10852edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclOrFunctionDefInternal(ParsedAttributesWithRange &attrs, 10862edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec &DS, 10872edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt AccessSpecifier AS) { 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 10890efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ParseDeclarationSpecifiers(DS, ParsedTemplateInfo(), AS, DSC_top_level); 1090a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.2.3p6: Handle "struct-or-union identifier;", "enum { X };" 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // declaration-specifiers init-declarator-list[opt] ';' 1093000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 10942edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 1096d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = Actions.ParsedFreeStandingDeclSpec(getCurScope(), AS, DS); 109754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.complete(TheDecl); 1098682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1100a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11012edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt DS.takeAttributesFrom(attrs); 11022edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 1103246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // ObjC2 allows prefix attributes on class interfaces and protocols. 1104246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // FIXME: This still needs better diagnostics. We should only accept 1105246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar // attributes here, no types, etc. 11064e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC2 && Tok.is(tok::at)) { 1107dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff SourceLocation AtLoc = ConsumeToken(); // the "@" 11081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (!Tok.isObjCAtKeyword(tok::objc_interface) && 1109246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar !Tok.isObjCAtKeyword(tok::objc_protocol)) { 1110246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar Diag(Tok, diag::err_objc_unexpected_attr); 1111cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner SkipUntil(tok::semi); // FIXME: better skip? 1112682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return DeclGroupPtrTy(); 1113cb53b361bce341c8591333c6997f62e480acc0b4Chris Lattner } 1114d8ac05753dc4506224d445ff98399c01da3136e5John McCall 111554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DS.abort(); 111654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 11170de2ae28c603322f05e2d9200c7d457c8b928983Fariborz Jahanian const char *PrevSpec = 0; 1118fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 1119fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (DS.SetTypeSpecType(DeclSpec::TST_unspecified, AtLoc, PrevSpec, DiagID)) 1120fec54013fcd0eb72642741584ca04c1bc292bef8John McCall Diag(AtLoc, DiagID) << PrevSpec; 11211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1122246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar if (Tok.isObjCAtKeyword(tok::objc_protocol)) 1123bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return ParseObjCAtProtocolDeclaration(AtLoc, DS.getAttributes()); 1124bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor 1125bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor return Actions.ConvertDeclToDeclGroup( 1126bd9482d859a74bf2c45ef8b8aedec61c0e1c8374Douglas Gregor ParseObjCAtInterfaceDeclaration(AtLoc, DS.getAttributes())); 1127dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff } 1128a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1129c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // If the declspec consisted only of 'extern' and we have a string 1130c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // literal following it, this must be a C++ linkage specifier like 1131c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner // 'extern "C"'. 11324e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Tok.is(tok::string_literal) && getLangOpts().CPlusPlus && 1133c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DS.getStorageClassSpec() == DeclSpec::SCS_extern && 1134682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DS.getParsedSpecifiers() == DeclSpec::PQ_StorageClassSpecifier) { 1135d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TheDecl = ParseLinkage(DS, Declarator::FileContext); 1136682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner return Actions.ConvertDeclToDeclGroup(TheDecl); 1137682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner } 1138c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner 1139d8ac05753dc4506224d445ff98399c01da3136e5John McCall return ParseDeclGroup(DS, Declarator::FileContext, true); 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11423acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz JahanianParser::DeclGroupPtrTy 11432edf0a2520313cde900799b1eb9bd11c9c776afeSean HuntParser::ParseDeclarationOrFunctionDefinition(ParsedAttributesWithRange &attrs, 11442edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec *DS, 11453acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS) { 11462edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt if (DS) { 11472edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, *DS, AS); 11482edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } else { 11492edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsingDeclSpec PDS(*this); 11502edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // Must temporarily exit the objective-c container scope for 11512edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // parsing c constructs and re-enter objc container scope 11522edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt // afterwards. 11532edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ObjCDeclContextSwitch ObjCDC(*this); 11542edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 11552edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt return ParseDeclOrFunctionDefInternal(attrs, PDS, AS); 11562edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt } 11573acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian} 11583acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseFunctionDefinition - We parsed and verified that the specified 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Declarator is well formed. If this is a K&R-style function, read the 11615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parameters declaration-list, then start the compound-statement. 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1163a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// function-definition: [C99 6.9.1] 1164a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// decl-specs declarator declaration-list[opt] compound-statement 1165a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner/// [C90] function-definition: [C99 6.7.1] - implicit int result 1166a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump/// [C90] decl-specs[opt] declarator declaration-list[opt] compound-statement 11677ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 116823c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// decl-specifier-seq[opt] declarator ctor-initializer[opt] 116923c4b1883b13dc17484b7214091b73f3ba29096eChris Lattner/// function-body 11707ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor/// [C++] function-definition: [C++ 8.4] 1171d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl/// decl-specifier-seq[opt] declarator function-try-block 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1173d226f65006733ed7f709c3174f22ce33391cb58fJohn McCallDecl *Parser::ParseFunctionDefinition(ParsingDeclarator &D, 1174c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins const ParsedTemplateInfo &TemplateInfo, 1175c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins LateParsedAttrList *LateParsedAttrs) { 117628bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley // Poison the SEH identifiers so they are flagged as illegal in function bodies 117728bbe4b8acc338476fe0825769b41fb32b423c72John Wiegley PoisonSEHIdentifiersRAIIObject PoisonSEHIdentifiers(*this, true); 1178075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara const DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 1179a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1180a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // If this is C90 and the declspecs were completely missing, fudge in an 1181a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // implicit int. We do this here because this is the only place where 1182a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner // declaration-specifiers are completely optional in the grammar. 11834e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ImplicitInt && D.getDeclSpec().isEmpty()) { 1184a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner const char *PrevSpec; 1185fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 118631c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getMutableDeclSpec().SetTypeSpecType(DeclSpec::TST_int, 118731c286803c60c59d314525e047d0e72f9a1cb55bChris Lattner D.getIdentifierLoc(), 1188fec54013fcd0eb72642741584ca04c1bc292bef8John McCall PrevSpec, DiagID); 1189ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetRangeBegin(D.getDeclSpec().getSourceRange().getBegin()); 1190a798ebc82627ea9cb7a00da07d2b60f9f2114f69Chris Lattner } 1191a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 11925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If this declaration was formed with a K&R-style identifier list for the 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // arguments, parse declarations for all of the args next. 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // int foo(a,b) int a; float b; {} 1195004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner if (FTI.isKNRPrototype()) 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseKNRParamDeclarations(D); 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11987ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // We should have either an opening brace or, in a C++ constructor, 11997ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // we may have a colon. 1200758afbcc86ef15f8d433f5f87db1495e50effeb3Douglas Gregor if (Tok.isNot(tok::l_brace) && 12014e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie (!getLangOpts().CPlusPlus || 1202cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt (Tok.isNot(tok::colon) && Tok.isNot(tok::kw_try) && 1203cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Tok.isNot(tok::equal)))) { 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_fn_body); 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip over garbage, until we get to '{'. Don't eat the '{'. 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::l_brace, true, true); 1208a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we didn't find the '{', bail out. 1210000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::l_brace)) 1211d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall return 0; 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1213a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1214c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Check to make sure that any normal attributes are allowed to be on 1215c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // a definition. Late parsed attributes are checked at the end. 1216c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (Tok.isNot(tok::equal)) { 1217c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins AttributeList *DtorAttrs = D.getAttributes(); 1218c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins while (DtorAttrs) { 1219c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (!IsThreadSafetyAttribute(DtorAttrs->getName()->getName())) { 1220c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins Diag(DtorAttrs->getLoc(), diag::warn_attribute_on_function_definition) 1221c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins << DtorAttrs->getName()->getName(); 1222c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 1223c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins DtorAttrs = DtorAttrs->getNext(); 1224c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 1225c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins } 1226c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 12278387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // In delayed template parsing mode, for function template we consume the 12288387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet // tokens and store them for late parsing at the end of the translation unit. 12294e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().DelayedTemplateParsing && 12300963017dcbc32176c79a251c3ab23bc35ac784e5Douglas Gregor Tok.isNot(tok::equal) && 12318387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet TemplateInfo.Kind == ParsedTemplateInfo::Template) { 12325354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg TemplateParameterLists(*TemplateInfo.TemplateParams); 12338387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 12348387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 12358387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Scope *ParentScope = getCurScope()->getParent(); 12368387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 123745fa560c72441069d9e4eb1e66efd87349caa552Douglas Gregor D.setFunctionDefinitionKind(FDK_Definition); 12388387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Decl *DP = Actions.HandleDeclarator(ParentScope, D, 12393fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer TemplateParameterLists); 12408387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.complete(DP); 12418387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet D.getMutableDeclSpec().abort(); 12428387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 12438387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (DP) { 1244e1fca502e7f1349e9b4520a4ca9a02413bcf2b14Francois Pichet LateParsedTemplatedFunction *LPT = new LateParsedTemplatedFunction(DP); 12458387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 12468387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FunctionDecl *FnD = 0; 12478387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet if (FunctionTemplateDecl *FunTmpl = dyn_cast<FunctionTemplateDecl>(DP)) 12488387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = FunTmpl->getTemplatedDecl(); 12498387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet else 12508387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet FnD = cast<FunctionDecl>(DP); 1251d4a0caf78e7c18e7aca65fbfd799a6c024ff51fbFrancois Pichet Actions.CheckForFunctionRedefinition(FnD); 12528387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet 12538387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LateParsedTemplateMap[FnD] = LPT; 12548387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet Actions.MarkAsLateParsedTemplate(FnD); 12558387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(LPT->Toks); 12568387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } else { 12578387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet CachedTokens Toks; 12588387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet LexTemplateFunctionForLateParsing(Toks); 12598387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 12608387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet return DP; 12618387e2a41eef6fa17fb140a18c29b6eee9dd2b8aFrancois Pichet } 12622eb362b50f34296c39d5ec3e5e1bd6a2c9a5877eFariborz Jahanian else if (CurParsedObjCImpl && 12639e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian !TemplateInfo.TemplateParams && 12649e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian (Tok.is(tok::l_brace) || Tok.is(tok::kw_try) || 12659e5df312551bc92f0a6c908288effef2e2ed0ee7Fariborz Jahanian Tok.is(tok::colon)) && 1266be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Actions.CurContext->isTranslationUnit()) { 1267be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1268be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Scope *ParentScope = getCurScope()->getParent(); 1269be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian 1270be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.setFunctionDefinitionKind(FDK_Definition); 1271be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian Decl *FuncDecl = Actions.HandleDeclarator(ParentScope, D, 12725354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer MultiTemplateParamsArg()); 1273be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.complete(FuncDecl); 1274be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian D.getMutableDeclSpec().abort(); 1275be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian if (FuncDecl) { 1276be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian // Consume the tokens and store them for later parsing. 1277be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian StashAwayMethodOrFunctionBodyTokens(FuncDecl); 1278be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian CurParsedObjCImpl->HasCFunction = true; 1279be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian return FuncDecl; 1280be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1281be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian } 1282be1d4ecb6885872f9d4e02d3afafdc9532eeb350Fariborz Jahanian 1283b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Enter a scope for the function body. 12848935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope BodyScope(this, Scope::FnScope|Scope::DeclScope); 1285a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1286b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // Tell the actions module that we have entered a function definition with the 1287b652cea7d7b70ebe3744fb6d72c9ad9cf3c95429Chris Lattner // specified Declarator for the function. 1288d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Res = TemplateInfo.TemplateParams? 128923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnStartOfFunctionTemplateDef(getCurScope(), 12905354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer *TemplateInfo.TemplateParams, D) 129123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor : Actions.ActOnStartOfFunctionDef(getCurScope(), D); 1292a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 129354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclarator context before we parse the body. 129454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.complete(Res); 129554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 129654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // Break out of the ParsingDeclSpec context, too. This const_cast is 129754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall // safe because we're always the sole owner. 129854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall D.getMutableDeclSpec().abort(); 129954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 1300cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::equal)) { 13014e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Only C++ function definitions have '='"); 1302cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ConsumeToken(); 1303cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1304cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.ActOnFinishFunctionBody(Res, 0, false); 1305cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1306cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt bool Delete = false; 1307cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SourceLocation KWLoc; 1308cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::kw_delete)) { 13094e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 13107fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_deleted_function : 1311d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_deleted_function); 1312cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1313cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1314cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDeleted(Res, KWLoc); 1315cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete = true; 1316cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else if (Tok.is(tok::kw_default)) { 13174e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie Diag(Tok, getLangOpts().CPlusPlus0x ? 13187fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_defaulted_function : 1319d7c56e1114bfe7d461786903bb720d2c6efc05a1Richard Smith diag::ext_defaulted_function); 1320cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1321cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt KWLoc = ConsumeToken(); 1322cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Actions.SetDeclDefaulted(Res, KWLoc); 1323cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1324cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt llvm_unreachable("function definition after = not 'delete' or 'default'"); 1325cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1326cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1327cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt if (Tok.is(tok::comma)) { 1328cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Diag(KWLoc, diag::err_default_delete_in_multiple_declaration) 1329cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt << Delete; 1330cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt SkipUntil(tok::semi); 1331cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } else { 1332cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt ExpectAndConsume(tok::semi, diag::err_expected_semi_after, 1333cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt Delete ? "delete" : "default", tok::semi); 1334cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1335cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1336cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt return Res; 1337cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt } 1338cd10dec673680fd18a2e5a27646173780c059d32Sean Hunt 1339d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl if (Tok.is(tok::kw_try)) 1340c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionTryBlock(Res, BodyScope); 1341d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 13427ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // If we have a colon, then we're probably parsing a C++ 13437ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor // ctor-initializer. 1344d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (Tok.is(tok::colon)) { 13457ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor ParseConstructorInitializer(Res); 1346d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall 1347d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall // Recover from error. 1348d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall if (!Tok.is(tok::l_brace)) { 1349c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor BodyScope.Exit(); 13509ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Actions.ActOnFinishFunctionBody(Res, 0); 1351d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall return Res; 1352d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } 1353d6ca8da0f5a4115813055729faaa5128e994806dJohn McCall } else 1354393612e6c7727f1fee50039254d9f434364cc0b2Fariborz Jahanian Actions.ActOnDefaultCtorInitializers(Res); 13557ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 1356c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins // Late attributes are parsed in the same scope as the function body. 1357c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins if (LateParsedAttrs) 1358c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins ParseLexedAttributeList(*LateParsedAttrs, Res, false, true); 1359c24a2335677f3d1bd2cab1019ac445d650f52123DeLesley Hutchins 1360c9977d09a2de7f7d2245973413d4caf86c736640Douglas Gregor return ParseFunctionStatementBody(Res, BodyScope); 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 13625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseKNRParamDeclarations - Parse 'declaration-list[opt]' which provides 13645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// types for a function with a K&R-style identifier list for arguments. 13655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencervoid Parser::ParseKNRParamDeclarations(Declarator &D) { 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // We know that the top-level of this declarator is a function. 1367075f8f1b6bed4d1b224c74f87508534cc6392ce6Abramo Bagnara DeclaratorChunk::FunctionTypeInfo &FTI = D.getFunctionTypeInfo(); 13685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 136904421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // Enter function-declaration scope, limiting any declarators to the 137004421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner // function prototype scope, including parameter declarators. 13713218c4bb3b5d7250f12420de6db7ef3e3f805a75Douglas Gregor ParseScope PrototypeScope(this, Scope::FunctionPrototypeScope|Scope::DeclScope); 137204421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner 13735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Read all the argument declarations. 13745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (isDeclarationSpecifier()) { 13755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation DSStart = Tok.getLocation(); 1376a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 13775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the common declaration-specifiers piece. 13780b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 13795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarationSpecifiers(DS); 1380a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 13815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: 'each declaration in the declaration list shall have at 13825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // least one declarator'. 13835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // NOTE: GCC just makes this an ext-warn. It's not clear what it does with 13845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the declarations though. It's trivial to ignore them, really hard to do 13855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // anything else with them. 1386000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) { 13875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DSStart, diag::err_declaration_does_not_declare_param); 13885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 13895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer continue; 13905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1391a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 13925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: Declarations shall contain no storage-class specifiers other 13935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // than register. 13945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.getStorageClassSpec() != DeclSpec::SCS_unspecified && 13955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.getStorageClassSpec() != DeclSpec::SCS_register) { 13965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getStorageClassSpecLoc(), 13975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 13985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 13995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (DS.isThreadSpecified()) { 14015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(DS.getThreadSpecLoc(), 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer diag::err_invalid_storage_class_in_func_decl); 14035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DS.ClearStorageClassSpecs(); 14045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1405a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 14065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the first declarator attached to this declspec. 14075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Declarator ParmDeclarator(DS, Declarator::KNRTypeListContext); 14085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 14095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Handle the full declarator list. 14115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer while (1) { 14125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If attributes are present, parse them. 14137f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(ParmDeclarator); 1414a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 14155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Ask the actions module to compute the type for this declarator. 1416d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param = 141723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnParamDeclarator(getCurScope(), ParmDeclarator); 14182bd42fadafddc8acf744b57a970bdc96a077c617Steve Naroff 1419a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump if (Param && 14205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // A missing identifier has already been diagnosed. 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParmDeclarator.getIdentifier()) { 14225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scan the argument list looking for the correct param to apply this 14245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type. 14255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer for (unsigned i = 0; ; ++i) { 14265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9.1p6: those declarators shall declare only identifiers from 14275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // the identifier list. 14285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (i == FTI.NumArgs) { 14291ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(ParmDeclarator.getIdentifierLoc(), diag::err_no_matching_param) 14306898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 14315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 14325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1433a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 14345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (FTI.ArgInfo[i].Ident == ParmDeclarator.getIdentifier()) { 14355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Reject redefinitions of parameters. 143604421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner if (FTI.ArgInfo[i].Param) { 14375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(ParmDeclarator.getIdentifierLoc(), 14381ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner diag::err_param_redefinition) 14396898e33d0b28346a4dbe9a666e0e4188fea80460Chris Lattner << ParmDeclarator.getIdentifier(); 14405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } else { 144104421087832a031c90bd58f128c7c0e741db8dd2Chris Lattner FTI.ArgInfo[i].Param = Param; 14425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 14445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // If we don't have a comma, it is either the end of the list (a ';') or 14495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // an error, bail out. 1450000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.isNot(tok::comma)) 14515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer break; 1452a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 14537984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.clear(); 14547984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith 14555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Consume the comma. 14567984de35644701c0d94336da7f2215d4c26d9f5bRichard Smith ParmDeclarator.setCommaLoc(ConsumeToken()); 1457a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 14585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parse the next declarator. 14595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParseDeclarator(ParmDeclarator); 14605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1461a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 14628bb21d32e9ccc9d9c221506dff26acafa8724ccaChris Lattner if (ExpectAndConsumeSemi(diag::err_expected_semi_declaration)) { 14635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Skip to end of block or statement 14645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SkipUntil(tok::semi, true); 1465000732226610650837478cba97843d19b75f648eChris Lattner if (Tok.is(tok::semi)) 14665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConsumeToken(); 14675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1469a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // The actions module must verify that all arguments were declared. 147123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.ActOnFinishKNRParamDeclarations(getCurScope(), D, Tok.getLocation()); 14725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 14735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseAsmStringLiteral - This is just a normal string-literal, but is not 14765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// allowed to be a wide string, and is not subject to character translation. 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 14785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] asm-string-literal: 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// string-literal 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 148160d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseAsmStringLiteral() { 14827f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek switch (Tok.getKind()) { 14837f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::string_literal: 14847f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek break; 148599831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf8_string_literal: 148699831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf16_string_literal: 148799831e4677a7e2e051af636221694d60ba31fcdbRichard Smith case tok::utf32_string_literal: 14887f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek case tok::wide_string_literal: { 14897f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek SourceLocation L = Tok.getLocation(); 14907f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_asm_operand_wide_string_literal) 149199831e4677a7e2e051af636221694d60ba31fcdbRichard Smith << (Tok.getKind() == tok::wide_string_literal) 14927f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek << SourceRange(L, L); 14937f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 14947f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek } 14957f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek default: 14967f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek Diag(Tok, diag::err_expected_string_literal); 14977f422287a2ee7e515beb715f1f8915e9331469eeTed Kremenek return ExprError(); 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1499a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 150099831e4677a7e2e051af636221694d60ba31fcdbRichard Smith return ParseStringLiteralExpression(); 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseSimpleAsm 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// [GNU] simple-asm-expr: 15065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'asm' '(' asm-string-literal ')' 15075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 150860d7b3a319d84d688752be3870615ac0f111fb16John McCallParser::ExprResult Parser::ParseSimpleAsm(SourceLocation *EndLoc) { 1509000732226610650837478cba97843d19b75f648eChris Lattner assert(Tok.is(tok::kw_asm) && "Not an asm!"); 1510dfab6cb59a703f2ce4d58371652ce879f4c85a09Anders Carlsson SourceLocation Loc = ConsumeToken(); 1511a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 15127a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall if (Tok.is(tok::kw_volatile)) { 1513841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall // Remove from the end of 'asm' to the end of 'volatile'. 1514841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall SourceRange RemovalRange(PP.getLocForEndOfToken(Loc), 1515841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall PP.getLocForEndOfToken(Tok.getLocation())); 1516841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall 1517841d5e607f81bf5627e47d0c62ead29f28b5b0c2John McCall Diag(Tok, diag::warn_file_asm_volatile) 1518849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval(RemovalRange); 15197a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall ConsumeToken(); 15207a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall } 15217a6ae743b2ecfdfadadf7df53b569a9a3871a8fdJohn McCall 15224a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 15234a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 15241ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_expected_lparen_after) << "asm"; 152561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ExprError(); 15265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1527a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 152860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(ParseAsmStringLiteral()); 1529a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 1530ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Result.isInvalid()) { 1531ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SkipUntil(tok::r_paren, true, true); 1532ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 1533ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Tok.getLocation(); 1534ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl ConsumeAnyToken(); 1535ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } else { 15364a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Close the paren and get the location of the end bracket 15374a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1538ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 15394a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor *EndLoc = T.getCloseLocation(); 1540ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 1541a6f0177a864ac478eb9890319f2e8ea03695e91dMike Stump 15423fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 15435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 154525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// \brief Get the TemplateIdAnnotation from the token and put it in the 154625a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// cleanup pool so that it gets destroyed when parsing the current top level 154725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis/// declaration is finished. 154825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios KyrtzidisTemplateIdAnnotation *Parser::takeTemplateIdAnnotation(const Token &tok) { 154925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis assert(tok.is(tok::annot_template_id) && "Expected template-id token"); 155025a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation * 155125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis Id = static_cast<TemplateIdAnnotation *>(tok.getAnnotationValue()); 155225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis return Id; 155325a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis} 155425a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis 15550576681bac125be07f77f66b02a3dba2c3a24557Richard Smithvoid Parser::AnnotateScopeToken(CXXScopeSpec &SS, bool IsNewAnnotation) { 15560576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Push the current token back into the token stream (or revert it if it is 15570576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // cached) and use an annotation scope token for current token. 15580576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (PP.isBacktrackEnabled()) 15590576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.RevertCachedTokens(1); 15600576681bac125be07f77f66b02a3dba2c3a24557Richard Smith else 15610576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.EnterToken(Tok); 15620576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_cxxscope); 15630576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationValue(Actions.SaveNestedNameSpecifierAnnotation(SS)); 15640576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationRange(SS.getRange()); 15650576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15660576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // In case the tokens were cached, have Preprocessor replace them 15670576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // with the annotation token. We don't need to do this if we've 15680576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // just reverted back to a prior state. 15690576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (IsNewAnnotation) 15700576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 15710576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 15720576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15730576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Attempt to classify the name at the current token position. This may 15740576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// form a type, scope or primary expression annotation, or replace the token 15750576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// with a typo-corrected keyword. This is only appropriate when the current 15760576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// name must refer to an entity which has already been declared. 15770576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// 15780576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param IsAddressOfOperand Must be \c true if the name is preceded by an '&' 15790576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// and might possibly have a dependent nested name specifier. 15800576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \param CCC Indicates how to perform typo-correction for this name. If NULL, 15810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// no typo correction will be performed. 15820576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::AnnotatedNameKind 15830576681bac125be07f77f66b02a3dba2c3a24557Richard SmithParser::TryAnnotateName(bool IsAddressOfOperand, 15840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CorrectionCandidateCallback *CCC) { 15850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith assert(Tok.is(tok::identifier) || Tok.is(tok::annot_cxxscope)); 15860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool EnteringContext = false; 15880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith const bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 15890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec SS; 15910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (getLangOpts().CPlusPlus && 15920576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 15930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 15940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 15950576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Tok.isNot(tok::identifier) || SS.isInvalid()) { 15960576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 15970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 15980576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 15990576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 16000576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 16010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IdentifierInfo *Name = Tok.getIdentifierInfo(); 16030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SourceLocation NameLoc = Tok.getLocation(); 16040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // FIXME: Move the tentative declaration logic into ClassifyName so we can 16060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // typo-correct to tentatively-declared identifiers. 16070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (isTentativelyDeclared(Name)) { 16080576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Identifier has been tentatively declared, and thus cannot be resolved as 16090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // an expression. Fall back to annotating it as a type. 16100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, false, SS, 16110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith !WasScopeAnnotation)) 16120576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 16130576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return Tok.is(tok::annot_typename) ? ANK_Success : ANK_TentativeDecl; 16140576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 16150576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Token Next = NextToken(); 16170576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16180576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Look up and classify the identifier. We don't perform any typo-correction 16190576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // after a scope specifier, because in general we can't recover from typos 16200576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // there (eg, after correcting 'A::tempalte B<X>::C', we would need to jump 16210576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // back into scope specifier parsing). 16220576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Sema::NameClassification Classification 16230576681bac125be07f77f66b02a3dba2c3a24557Richard Smith = Actions.ClassifyName(getCurScope(), SS, Name, NameLoc, Next, 16240576681bac125be07f77f66b02a3dba2c3a24557Richard Smith IsAddressOfOperand, SS.isEmpty() ? CCC : 0); 16250576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16260576681bac125be07f77f66b02a3dba2c3a24557Richard Smith switch (Classification.getKind()) { 16270576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Error: 16280576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 16290576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16300576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Keyword: 16310576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // The identifier was typo-corrected to a keyword. 16320576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setIdentifierInfo(Name); 16330576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(Name->getTokenID()); 16340576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.TypoCorrectToken(Tok); 16350576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 16360576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 16370576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We've "annotated" this as a keyword. 16380576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 16390576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16400576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Unknown: 16410576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // It's not something we know about. Leave it unannotated. 16420576681bac125be07f77f66b02a3dba2c3a24557Richard Smith break; 16430576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16440576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Type: 16450576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_typename); 16460576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setTypeAnnotation(Tok, Classification.getType()); 16470576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 16480576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 16490576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 16500576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 16510576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 16520576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16530576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_Expression: 16540576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setKind(tok::annot_primary_expr); 16550576681bac125be07f77f66b02a3dba2c3a24557Richard Smith setExprAnnotation(Tok, Classification.getExpression()); 16560576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setAnnotationEndLoc(NameLoc); 16570576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 16580576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Tok.setLocation(SS.getBeginLoc()); 16590576681bac125be07f77f66b02a3dba2c3a24557Richard Smith PP.AnnotateCachedTokens(Tok); 16600576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 16610576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16620576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_TypeTemplate: 16630576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (Next.isNot(tok::less)) { 16640576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // This may be a type template being used as a template template argument. 16650576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 16660576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 16670576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_TemplateName; 16680576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 16690576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Fall through. 16700576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_FunctionTemplate: { 16710576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We have a type or function template followed by '<'. 16720576681bac125be07f77f66b02a3dba2c3a24557Richard Smith ConsumeToken(); 16730576681bac125be07f77f66b02a3dba2c3a24557Richard Smith UnqualifiedId Id; 16740576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Id.setIdentifier(Name, NameLoc); 16750576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (AnnotateTemplateIdToken( 16760576681bac125be07f77f66b02a3dba2c3a24557Richard Smith TemplateTy::make(Classification.getTemplateName()), 16770576681bac125be07f77f66b02a3dba2c3a24557Richard Smith Classification.getTemplateNameKind(), SS, SourceLocation(), Id)) 16780576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Error; 16790576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Success; 16800576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 16810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith case Sema::NC_NestedNameSpecifier: 16830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith llvm_unreachable("already parsed nested name specifier"); 16840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith } 16850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 16860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Unable to classify the name, but maybe we can annotate a scope specifier. 16870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith if (SS.isNotEmpty()) 16880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, !WasScopeAnnotation); 16890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return ANK_Unresolved; 16900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 16910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 1692eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateTypeOrScopeToken - If the current token position is on a 1693eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typename (possibly qualified in C++) or a C++ scope specifier not followed 1694eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 1695eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// with a single annotation token representing the typename or C++ scope 1696eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// respectively. 1697eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This simplifies handling of C++ scope specifiers and allows efficient 1698eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// backtracking without the need to re-parse and resolve nested-names and 1699eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// typenames. 170044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// It will mainly be called when we expect to treat identifiers as typenames 170144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// (if they are typenames). For example, in C we do not expect identifiers 170244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// inside expressions to be treated as typenames so it will not be called 170344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// for expressions in C. 170444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// The benefit for C/ObjC is that a typename will be annotated and 1705b43a50ff1b0b171ece84425b0ad83a9a31f038faSteve Naroff/// Actions.getTypeName will not be needed to be called again (e.g. getTypeName 170644802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// will not be called twice, once to check whether we have a declaration 170744802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// specifier, and another one to get the actual type inside 170844802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis/// ParseDeclarationSpecifiers). 1709a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner/// 17109ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// This returns true if an error occurred. 17111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 171255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 171355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1714fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrainbool Parser::TryAnnotateTypeOrScopeToken(bool EnteringContext, bool NeedType) { 17151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) 171642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie || Tok.is(tok::kw_typename) || Tok.is(tok::annot_cxxscope) 171723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith || Tok.is(tok::kw_decltype) || Tok.is(tok::annot_template_id)) 171823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith && "Cannot be a type or scope token!"); 17191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1720d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::kw_typename)) { 1721d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // Parse a C++ typename-specifier, e.g., "typename T::type". 1722d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 1723d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // typename-specifier: 1724d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // 'typename' '::' [opt] nested-name-specifier identifier 17251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 'typename' '::' [opt] nested-name-specifier template [opt] 17261734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor // simple-template-id 1727d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor SourceLocation TypenameLoc = ConsumeToken(); 1728d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor CXXScopeSpec SS; 1729efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor if (ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/ParsedType(), 1730efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false, 17314147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 0, /*IsTypename*/true)) 17329ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 17339ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall if (!SS.isSet()) { 1734b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::identifier) || Tok.is(tok::annot_template_id) || 1735b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet Tok.is(tok::annot_decltype)) { 173623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // Attempt to recover by skipping the invalid 'typename' 1737b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet if (Tok.is(tok::annot_decltype) || 1738b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet (!TryAnnotateTypeOrScopeToken(EnteringContext, NeedType) && 1739b67e7fc607671ef3df64de63c38545197e9992b2Francois Pichet Tok.isAnnotation())) { 174023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith unsigned DiagID = diag::err_expected_qualified_after_typename; 174123756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // MS compatibility: MSVC permits using known types with typename. 174223756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith // e.g. "typedef typename T* pointer_type" 174323756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith if (getLangOpts().MicrosoftExt) 174423756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith DiagID = diag::warn_expected_qualified_after_typename; 174523756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), DiagID); 174623756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith return false; 174723756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 174823756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith } 174923756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith 175023756776eadfd8bbddf5d120d4c191ef9e50d209Richard Smith Diag(Tok.getLocation(), diag::err_expected_qualified_after_typename); 17519ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1752d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1753d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1754d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor TypeResult Ty; 1755d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor if (Tok.is(tok::identifier)) { 1756d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor // FIXME: check whether the next token is '<', first! 175723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 17581a15dae8be2b28e02b6639aa92b832465c5be420Douglas Gregor *Tok.getIdentifierInfo(), 1759d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor Tok.getLocation()); 17601734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else if (Tok.is(tok::annot_template_id)) { 176125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 17621734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor if (TemplateId->Kind == TNK_Function_template) { 17631734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_typename_refers_to_non_type_template) 17641734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << Tok.getAnnotationRange(); 17659ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 17661734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 1767d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 17685354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), 1769a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->NumArgs); 177066581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara 1771a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor Ty = Actions.ActOnTypenameType(getCurScope(), TypenameLoc, SS, 177266581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateId->TemplateKWLoc, 1773a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->Template, 1774a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->TemplateNameLoc, 1775a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->LAngleLoc, 177666581d41527628d4b37f7b05c288f77be7415d7dAbramo Bagnara TemplateArgsPtr, 1777a02411e4d58b1730bea2a990822858ecc31e8eb1Douglas Gregor TemplateId->RAngleLoc); 17781734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } else { 17791734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Diag(Tok, diag::err_expected_type_name_after_typename) 17801734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor << SS.getRange(); 17819ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 17821734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor } 17831734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor 178439d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl SourceLocation EndLoc = Tok.getLastLoc(); 17851734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setKind(tok::annot_typename); 1786b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty.isInvalid() ? ParsedType() : Ty.get()); 178739d67117f896c6e2faa727671ef64b3c04b0e3feSebastian Redl Tok.setAnnotationEndLoc(EndLoc); 17881734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor Tok.setLocation(TypenameLoc); 17891734317845d60307d474b5da8a8d33adbaf5e723Douglas Gregor PP.AnnotateCachedTokens(Tok); 17909ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1791d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor } 1792d57959af02b4af695276f4204443afe6e5d86bd8Douglas Gregor 1793ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall // Remembers whether the token was originally a scope annotation. 17940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool WasScopeAnnotation = Tok.is(tok::annot_cxxscope); 1795ae03cb5a84d13c7a0d4b21865bd63aabd18120d2John McCall 1796eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 17974e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus) 1798b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 17999ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1800eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 18010576681bac125be07f77f66b02a3dba2c3a24557Richard Smith return TryAnnotateTypeOrScopeTokenAfterScopeSpec(EnteringContext, NeedType, 18020576681bac125be07f77f66b02a3dba2c3a24557Richard Smith SS, !WasScopeAnnotation); 18030576681bac125be07f77f66b02a3dba2c3a24557Richard Smith} 18040576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 18050576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// \brief Try to annotate a type or scope token, having already parsed an 18060576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// optional scope specifier. \p IsNewScope should be \c true unless the scope 18070576681bac125be07f77f66b02a3dba2c3a24557Richard Smith/// specifier was extracted from an existing tok::annot_cxxscope annotation. 18080576681bac125be07f77f66b02a3dba2c3a24557Richard Smithbool Parser::TryAnnotateTypeOrScopeTokenAfterScopeSpec(bool EnteringContext, 18090576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool NeedType, 18100576681bac125be07f77f66b02a3dba2c3a24557Richard Smith CXXScopeSpec &SS, 18110576681bac125be07f77f66b02a3dba2c3a24557Richard Smith bool IsNewScope) { 1812eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::identifier)) { 1813fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain IdentifierInfo *CorrectedII = 0; 1814608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // Determine whether the identifier is a type name. 1815b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType Ty = Actions.getTypeName(*Tok.getIdentifierInfo(), 1816b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.getLocation(), getCurScope(), 18171e52dfc648ce0b25ef57ae29ef1b4337d80011efFariborz Jahanian &SS, false, 18189e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor NextToken().is(tok::period), 18199e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 1820fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/false, 1821fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain /*NonTrivialTypeSourceInfo*/true, 1822fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain NeedType ? &CorrectedII : NULL)) { 1823fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain // A FixIt was applied as a result of typo correction 1824fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain if (CorrectedII) 1825fac9467d1676dc05761e12e41e13e01a3a3da52bKaelyn Uhrain Tok.setIdentifierInfo(CorrectedII); 1826608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // This is a typename. Replace the current token in-place with an 1827608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // annotation type token. 1828b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner Tok.setKind(tok::annot_typename); 1829b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall setTypeAnnotation(Tok, Ty); 1830608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setAnnotationEndLoc(Tok.getLocation()); 1831608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner if (SS.isNotEmpty()) // it was a C++ qualified type name. 1832608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner Tok.setLocation(SS.getBeginLoc()); 18331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1834608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // In case the tokens were cached, have Preprocessor replace 1835608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them with the annotation token. 1836608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner PP.AnnotateCachedTokens(Tok); 18379ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 18381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 183939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 18404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 1841608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // If we're in C, we can't have :: tokens at all (the lexer won't return 1842608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner // them). If the identifier is not a type, then it can't be scope either, 18431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // just early exit. 1844608d1fc9c4db3e3769f03a4f989d7692aefbf073Chris Lattner return false; 1845eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 18461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 184739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // If this is a template-id, annotate with a template-id or type token. 184855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor if (NextToken().is(tok::less)) { 18497532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 1850014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 1851014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 18521fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 18531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateNameKind TNK 18547c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara = Actions.isTemplateName(getCurScope(), SS, 18557c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, TemplateName, 1856b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 1857b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext, 18587c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara Template, MemberOfUnknownSpecialization)) { 1859ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1860ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 1861e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 1862e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName)) { 1863c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // If an unrecoverable error occurred, we need to return true here, 1864c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // because the token stream is in a damaged state. We may not return 1865c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner // a valid identifier. 18669ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1867c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner } 1868ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 186955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 1870d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 187139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // The current token, which is either an identifier or a 187239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id, is not part of the annotation. Fall through to 187339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // push that token back into the stream and complete the C++ scope 187439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specifier annotation. 18751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1876eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 187739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id)) { 187825a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 1879c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template) { 188039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // A template-id that refers to a type was parsed into a 188139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id annotation in a context where we weren't allowed 188239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // to produce a type annotation token. Update the template-id 188339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // annotation token to a type annotation token now. 1884059101f922de6eb765601459925f4c8914420b23Douglas Gregor AnnotateTemplateIdTokenAsType(); 18859ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 188639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 188739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 1888d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 18896ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner if (SS.isEmpty()) 18909ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 18911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18926ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner // A C++ scope specifier that isn't followed by a typename. 18930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, IsNewScope); 18949ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1895eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 1896eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1897eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// TryAnnotateScopeToken - Like TryAnnotateTypeOrScopeToken but only 189839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor/// annotates C++ scope specifiers and template-ids. This returns 189983a22ecbf52c06b4ee364f3fadcdb0abaf2dabf6Richard Smith/// true if there was an error that could not be recovered from. 19001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 190155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// Note that this routine emits an error if you call it with ::new or ::delete 190255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner/// as the current tokens, so only call it in contexts where these are invalid. 1903495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::TryAnnotateCXXScopeToken(bool EnteringContext) { 19044e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 19056ec76d45bd3111013c357f16e08720407c2f9ae8Chris Lattner "Call sites of this function should be guarded by checking for C++"); 19063b887354b1b667c97d070ddc67b5354353c4c07bDouglas Gregor assert((Tok.is(tok::identifier) || Tok.is(tok::coloncolon) || 190742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) || 190842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie Tok.is(tok::kw_decltype)) && "Cannot be a type or scope token!"); 1909eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 19104bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis CXXScopeSpec SS; 1911b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParseOptionalCXXScopeSpecifier(SS, ParsedType(), EnteringContext)) 19129ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1913edc287751a4b05e3b4d8ff2b38fa30c5b59a548bJeffrey Yasskin if (SS.isEmpty()) 19149ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1915eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 19160576681bac125be07f77f66b02a3dba2c3a24557Richard Smith AnnotateScopeToken(SS, true); 19179ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 1918eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 19196c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 1920fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieubool Parser::isTokenEqualOrEqualTypo() { 1921fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu tok::TokenKind Kind = Tok.getKind(); 1922fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu switch (Kind) { 1923fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu default: 1924d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu return false; 1925fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::ampequal: // &= 1926fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::starequal: // *= 1927fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::plusequal: // += 1928fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::minusequal: // -= 1929fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::exclaimequal: // != 1930fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::slashequal: // /= 1931fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::percentequal: // %= 1932fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lessequal: // <= 1933fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::lesslessequal: // <<= 1934fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greaterequal: // >= 1935fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::greatergreaterequal: // >>= 1936fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::caretequal: // ^= 1937fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::pipeequal: // |= 1938fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equalequal: // == 1939fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu Diag(Tok, diag::err_invalid_token_after_declarator_suggest_equal) 1940fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << getTokenSimpleSpelling(Kind) 1941fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu << FixItHint::CreateReplacement(SourceRange(Tok.getLocation()), "="); 1942fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu case tok::equal: 1943fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu return true; 1944fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu } 1945a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis} 1946a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 19477d100872341f233c81e1d7b72b40457e62c36862Argyrios KyrtzidisSourceLocation Parser::handleUnexpectedCodeCompletionToken() { 19487d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis assert(Tok.is(tok::code_completion)); 19497d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis PrevTokLocation = Tok.getLocation(); 19507d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis 195123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor for (Scope *S = getCurScope(); S; S = S->getParent()) { 1952dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::FnScope) { 1953f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_RecoveryInFunction); 19547d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 19557d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1956dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1957dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1958dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (S->getFlags() & Scope::ClassScope) { 1959f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Class); 19607d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 19617d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1962dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1963dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 1964dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 1965f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Namespace); 19667d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 19677d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return PrevTokLocation; 1968dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor} 1969dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 19706c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// Anchor the Parser::FieldCallback vtable to this translation unit. 19716c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// We use a spurious method instead of the destructor because 19726c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// destroying FieldCallbacks can actually be slightly 19736c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall// performance-sensitive. 19746c94a6d77f456f23ecd4c2061e6413786b5e6571John McCallvoid Parser::FieldCallback::_anchor() { 19756c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall} 1976f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1977f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor// Code-completion pass-through functions 1978f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1979f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteDirective(bool InConditional) { 1980f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorDirective(InConditional); 1981f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 1982f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1983f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorvoid Parser::CodeCompleteInConditionalExclusion() { 1984f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor Actions.CodeCompleteInPreprocessorConditionalExclusion(getCurScope()); 1985f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor} 19861fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor 19871fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregorvoid Parser::CodeCompleteMacroName(bool IsDefinition) { 1988f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroName(IsDefinition); 1989f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1990f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1991f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompletePreprocessorExpression() { 1992f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorExpression(); 1993f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor} 1994f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor 1995f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregorvoid Parser::CodeCompleteMacroArgument(IdentifierInfo *Macro, 1996f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1997f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex) { 1998f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor Actions.CodeCompletePreprocessorMacroArgument(getCurScope(), Macro, MacroInfo, 1999f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor ArgumentIndex); 20001fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor} 200155817afdf9d453a443262a733f6caf6692dca118Douglas Gregor 200255817afdf9d453a443262a733f6caf6692dca118Douglas Gregorvoid Parser::CodeCompleteNaturalLanguage() { 200355817afdf9d453a443262a733f6caf6692dca118Douglas Gregor Actions.CodeCompleteNaturalLanguage(); 200455817afdf9d453a443262a733f6caf6692dca118Douglas Gregor} 2005f986038beed360c031de8654cfba43a5d3184605Francois Pichet 20063896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregorbool Parser::ParseMicrosoftIfExistsCondition(IfExistsCondition& Result) { 2007f986038beed360c031de8654cfba43a5d3184605Francois Pichet assert((Tok.is(tok::kw___if_exists) || Tok.is(tok::kw___if_not_exists)) && 2008f986038beed360c031de8654cfba43a5d3184605Francois Pichet "Expected '__if_exists' or '__if_not_exists'"); 20093896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.IsIfExists = Tok.is(tok::kw___if_exists); 20103896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.KeywordLoc = ConsumeToken(); 2011f986038beed360c031de8654cfba43a5d3184605Francois Pichet 20124a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 20134a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.consumeOpen()) { 20143896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Diag(Tok, diag::err_expected_lparen_after) 20153896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor << (Result.IsIfExists? "__if_exists" : "__if_not_exists"); 2016f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 2017f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 2018f986038beed360c031de8654cfba43a5d3184605Francois Pichet 2019f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Parse nested-name-specifier. 2020efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(Result.SS, ParsedType(), 2021efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor /*EnteringContext=*/false); 2022f986038beed360c031de8654cfba43a5d3184605Francois Pichet 2023f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check nested-name specifier. 20243896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Result.SS.isInvalid()) { 20253896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 2026f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 2027f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 2028f986038beed360c031de8654cfba43a5d3184605Francois Pichet 2029e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // Parse the unqualified-id. 2030e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; // FIXME: parsed, but unused. 2031e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(Result.SS, false, true, true, ParsedType(), 2032e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, Result.Name)) { 20333896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor T.skipToEnd(); 2034f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 2035f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 2036f986038beed360c031de8654cfba43a5d3184605Francois Pichet 20373896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (T.consumeClose()) 2038f986038beed360c031de8654cfba43a5d3184605Francois Pichet return true; 20393896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 2040f986038beed360c031de8654cfba43a5d3184605Francois Pichet // Check if the symbol exists. 204165019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor switch (Actions.CheckMicrosoftIfExistsSymbol(getCurScope(), Result.KeywordLoc, 204265019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor Result.IsIfExists, Result.SS, 20433896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Name)) { 20443896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Exists: 20453896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = Result.IsIfExists ? IEB_Parse : IEB_Skip; 20463896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 2047f986038beed360c031de8654cfba43a5d3184605Francois Pichet 20483896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_DoesNotExist: 20493896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = !Result.IsIfExists ? IEB_Parse : IEB_Skip; 20503896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 20513896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 20523896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case Sema::IER_Dependent: 20533896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Result.Behavior = IEB_Dependent; 20543896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 205565019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor 205665019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor case Sema::IER_Error: 205765019acfc46ffb191fac4e781ac0c4b8d0c8434eDouglas Gregor return true; 20583896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 2059f986038beed360c031de8654cfba43a5d3184605Francois Pichet 2060f986038beed360c031de8654cfba43a5d3184605Francois Pichet return false; 2061f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 2062f986038beed360c031de8654cfba43a5d3184605Francois Pichet 2063563a645de82231a55e221fe655b7188bf8369662Francois Pichetvoid Parser::ParseMicrosoftIfExistsExternalDeclaration() { 20643896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor IfExistsCondition Result; 2065f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (ParseMicrosoftIfExistsCondition(Result)) 2066f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 2067f986038beed360c031de8654cfba43a5d3184605Francois Pichet 20683896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor BalancedDelimiterTracker Braces(*this, tok::l_brace); 20693896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor if (Braces.consumeOpen()) { 2070f986038beed360c031de8654cfba43a5d3184605Francois Pichet Diag(Tok, diag::err_expected_lbrace); 2071f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 2072f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 2073f986038beed360c031de8654cfba43a5d3184605Francois Pichet 20743896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor switch (Result.Behavior) { 20753896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Parse: 20763896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse declarations below. 20773896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor break; 20783896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 20793896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Dependent: 20803896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor llvm_unreachable("Cannot have a dependent external declaration"); 20813896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 20823896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor case IEB_Skip: 20833896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.skipToEnd(); 2084f986038beed360c031de8654cfba43a5d3184605Francois Pichet return; 2085f986038beed360c031de8654cfba43a5d3184605Francois Pichet } 2086f986038beed360c031de8654cfba43a5d3184605Francois Pichet 20873896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor // Parse the declarations. 20883896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor while (Tok.isNot(tok::r_brace) && Tok.isNot(tok::eof)) { 2089f986038beed360c031de8654cfba43a5d3184605Francois Pichet ParsedAttributesWithRange attrs(AttrFactory); 2090f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseCXX0XAttributes(attrs); 2091f986038beed360c031de8654cfba43a5d3184605Francois Pichet MaybeParseMicrosoftAttributes(attrs); 2092f986038beed360c031de8654cfba43a5d3184605Francois Pichet DeclGroupPtrTy Result = ParseExternalDeclaration(attrs); 2093f986038beed360c031de8654cfba43a5d3184605Francois Pichet if (Result && !getCurScope()->getParent()) 2094f986038beed360c031de8654cfba43a5d3184605Francois Pichet Actions.getASTConsumer().HandleTopLevelDecl(Result.get()); 20953896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor } 20963896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor Braces.consumeClose(); 2097f986038beed360c031de8654cfba43a5d3184605Francois Pichet} 20986aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 20995948ae1021122164b22f74353bb7fe325a64f616Douglas GregorParser::DeclGroupPtrTy Parser::ParseModuleImport(SourceLocation AtLoc) { 210032ad2ee2618745ce3da51c2ae066ed5f21157c07Ted Kremenek assert(Tok.isObjCAtKeyword(tok::objc___experimental_modules_import) && 210165030af6526748ce11534e92f0ccefc44091ba13Douglas Gregor "Improper start to module import"); 21026aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor SourceLocation ImportLoc = ConsumeToken(); 21036aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 21043d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor llvm::SmallVector<std::pair<IdentifierInfo *, SourceLocation>, 2> Path; 21053d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 21063d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Parse the module path. 21073d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor do { 21083d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (!Tok.is(tok::identifier)) { 2109c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor if (Tok.is(tok::code_completion)) { 2110c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor Actions.CodeCompleteModuleImport(ImportLoc, Path); 2111c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor ConsumeCodeCompletionToken(); 2112c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor SkipUntil(tok::semi); 2113c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor return DeclGroupPtrTy(); 2114c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor } 2115c5b2e58840748145d1706c1d1481369d1863fabfDouglas Gregor 21163d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Diag(Tok, diag::err_module_expected_ident); 21173d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor SkipUntil(tok::semi); 21183d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor return DeclGroupPtrTy(); 21193d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 21203d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 21213d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor // Record this part of the module path. 21223d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor Path.push_back(std::make_pair(Tok.getIdentifierInfo(), Tok.getLocation())); 21233d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 21243d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 21253d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor if (Tok.is(tok::period)) { 21263d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor ConsumeToken(); 21273d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor continue; 21283d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } 21293d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor 21303d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor break; 21313d3589db579f7695667b913c5043dd264ebe546fDouglas Gregor } while (true); 21326aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 21335948ae1021122164b22f74353bb7fe325a64f616Douglas Gregor DeclResult Import = Actions.ActOnModuleImport(AtLoc, ImportLoc, Path); 21346aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor ExpectAndConsumeSemi(diag::err_module_expected_semi); 21356aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor if (Import.isInvalid()) 21366aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return DeclGroupPtrTy(); 21376aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor 21386aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor return Actions.ConvertDeclToDeclGroup(Import.get()); 21396aa52ec6b969faabf3764baf79d89810b8249a7eDouglas Gregor} 21404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 2141c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseOverflow() { 2142d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, diag::err_parser_impl_limit_overflow); 2143d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.SkipUntil(tok::eof); 2144d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 21454a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 21464a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 2147c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::expectAndConsume(unsigned DiagID, 21484a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor const char *Msg, 21494a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor tok::TokenKind SkipToToc ) { 21504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LOpen = P.Tok.getLocation(); 2151d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.ExpectAndConsume(Kind, DiagID, Msg, SkipToToc)) 2152d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return true; 2153d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 2154d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (getDepth() < MaxDepth) 2155d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return false; 2156d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 2157d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor return diagnoseOverflow(); 21584a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 21594a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 2160c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorbool BalancedDelimiterTracker::diagnoseMissingClose() { 2161d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor assert(!P.Tok.is(Close) && "Should have consumed closing delimiter"); 2162d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor 2163d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor const char *LHSName = "unknown"; 2164b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie diag::kind DID; 2165d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor switch (Close) { 2166b031eab1c07fa2c5bd74c7e92f7c938bf3304729David Blaikie default: llvm_unreachable("Unexpected balanced token"); 2167d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_paren : LHSName = "("; DID = diag::err_expected_rparen; break; 2168d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_brace : LHSName = "{"; DID = diag::err_expected_rbrace; break; 2169d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor case tok::r_square: LHSName = "["; DID = diag::err_expected_rsquare; break; 21704a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor } 2171d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(P.Tok, DID); 2172d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor P.Diag(LOpen, diag::note_matching) << LHSName; 2173d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor if (P.SkipUntil(Close)) 2174d78ef5b941ce2937228b010e8443f92025f9d683Douglas Gregor LClose = P.Tok.getLocation(); 21754a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return true; 21764a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor} 21773896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor 2178c86c40b912e53fb11ff8f745ed616035b8b7259cDouglas Gregorvoid BalancedDelimiterTracker::skipToEnd() { 21793896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor P.SkipUntil(Close, false); 21803896fc5d4daaf003e451e797e37de57dd8cf9cd5Douglas Gregor} 2181