ParseExprCXX.cpp revision 67b9e831943300ce54e564e601971828ce4def15
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ParseExprCXX.cpp - C++ Expression Parsing ------------------------===// 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 Expression parsing implementation for C++. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14500d3297d2a21edeac4d46cbcbe21bc2352c2a28Chris Lattner#include "clang/Parse/ParseDiagnostic.h" 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Parser.h" 16987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis#include "clang/Parse/DeclSpec.h" 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 197a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// ParseOptionalCXXScopeSpecifier - Parse global scope or 207a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// nested-name-specifier if present. Returns true if a nested-name-specifier 217a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// was parsed from the token stream. Note that this routine will not parse 227a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// ::new or ::delete, it will just leave them in the token stream. 23eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 24eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 25eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 26eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 27eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 28eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 29eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 30eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 31eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 32eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 337a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattnerbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS) { 344bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 357452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 364bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 37eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 383507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep(Tok.getAnnotationValue()); 39eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setRange(Tok.getAnnotationRange()); 40eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 414bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis return true; 42eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 43e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 4439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 4539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 465b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 475b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 485b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 495b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 505b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 5155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 5255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 53357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SourceLocation CCLoc = ConsumeToken(); 54357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SS.setBeginLoc(CCLoc); 553507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep(Actions.ActOnCXXGlobalScopeSpecifier(CurScope, CCLoc)); 56357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SS.setEndLoc(CCLoc); 5739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 58eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 59eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 6039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 6139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 6239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // type-name '::' 6339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // namespace-name '::' 6439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier identifier '::' 6539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::identifier) && NextToken().is(tok::coloncolon)) { 6639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We have an identifier followed by a '::'. Lookup this name 6739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // as the name in a nested-name-specifier. 6839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor IdentifierInfo *II = Tok.getIdentifierInfo(); 6939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation IdLoc = ConsumeToken(); 7039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 7139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 7239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 7339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (!HasScopeSpecifier) { 7439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setBeginLoc(IdLoc); 7539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 7639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 7739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 7839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (SS.isInvalid()) 7939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor continue; 8039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 813507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep( 8239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, IdLoc, CCLoc, *II)); 8339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setEndLoc(CCLoc); 84eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis continue; 8539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 86eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 8767b9e831943300ce54e564e601971828ce4def15Chris Lattner 8867b9e831943300ce54e564e601971828ce4def15Chris Lattner // Parse the optional 'template' keyword, then make sure we have 8967b9e831943300ce54e564e601971828ce4def15Chris Lattner // 'identifier <' after it. 9067b9e831943300ce54e564e601971828ce4def15Chris Lattner if (Tok.is(tok::kw_template)) { 9167b9e831943300ce54e564e601971828ce4def15Chris Lattner SourceLocation TemplateKWLoc = ConsumeToken(); 9267b9e831943300ce54e564e601971828ce4def15Chris Lattner 9367b9e831943300ce54e564e601971828ce4def15Chris Lattner if (Tok.isNot(tok::identifier)) { 9467b9e831943300ce54e564e601971828ce4def15Chris Lattner Diag(Tok.getLocation(), 9567b9e831943300ce54e564e601971828ce4def15Chris Lattner diag::err_id_after_template_in_nested_name_spec) 9667b9e831943300ce54e564e601971828ce4def15Chris Lattner << SourceRange(TemplateKWLoc); 9767b9e831943300ce54e564e601971828ce4def15Chris Lattner break; 9867b9e831943300ce54e564e601971828ce4def15Chris Lattner } 9967b9e831943300ce54e564e601971828ce4def15Chris Lattner 10067b9e831943300ce54e564e601971828ce4def15Chris Lattner if (NextToken().isNot(tok::less)) { 10167b9e831943300ce54e564e601971828ce4def15Chris Lattner Diag(NextToken().getLocation(), 10267b9e831943300ce54e564e601971828ce4def15Chris Lattner diag::err_less_after_template_name_in_nested_name_spec) 10367b9e831943300ce54e564e601971828ce4def15Chris Lattner << Tok.getIdentifierInfo()->getName() 10467b9e831943300ce54e564e601971828ce4def15Chris Lattner << SourceRange(TemplateKWLoc, Tok.getLocation()); 10567b9e831943300ce54e564e601971828ce4def15Chris Lattner break; 10667b9e831943300ce54e564e601971828ce4def15Chris Lattner } 10767b9e831943300ce54e564e601971828ce4def15Chris Lattner 10867b9e831943300ce54e564e601971828ce4def15Chris Lattner TemplateTy Template 10967b9e831943300ce54e564e601971828ce4def15Chris Lattner = Actions.ActOnDependentTemplateName(TemplateKWLoc, 11067b9e831943300ce54e564e601971828ce4def15Chris Lattner *Tok.getIdentifierInfo(), 11167b9e831943300ce54e564e601971828ce4def15Chris Lattner Tok.getLocation(), 11267b9e831943300ce54e564e601971828ce4def15Chris Lattner SS); 11367b9e831943300ce54e564e601971828ce4def15Chris Lattner AnnotateTemplateIdToken(Template, TNK_Dependent_template_name, 11467b9e831943300ce54e564e601971828ce4def15Chris Lattner &SS, TemplateKWLoc, false); 11567b9e831943300ce54e564e601971828ce4def15Chris Lattner continue; 11667b9e831943300ce54e564e601971828ce4def15Chris Lattner } 11767b9e831943300ce54e564e601971828ce4def15Chris Lattner 11839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 11939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // type-name '::' 12039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier 'template'[opt] simple-template-id '::' 12167b9e831943300ce54e564e601971828ce4def15Chris Lattner if (Tok.is(tok::identifier) && NextToken().is(tok::less)) { 1227532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 123c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor TemplateNameKind TNK = Actions.isTemplateName(*Tok.getIdentifierInfo(), 124c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor CurScope, Template, &SS); 12539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (TNK) { 12639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We have found a template name, so annotate this this token 12739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // with a template-id annotation. We do not permit the 12839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id to be translated into a type annotation, 12939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // because some clients (e.g., the parsing of class template 13039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specializations) still want to see the original template-id 13139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // token. 132c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor AnnotateTemplateIdToken(Template, TNK, &SS, SourceLocation(), false); 13339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor continue; 13439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 13539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 13639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 13739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 13839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We have 13939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 14039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // simple-template-id '::' 14139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 14239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // So we need to check whether the simple-template-id is of the 143c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // right kind (it should name a type or be dependent), and then 144c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // convert it into a type within the nested-name-specifier. 14539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor TemplateIdAnnotation *TemplateId 14639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 1474bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 148c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template || 149c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor TemplateId->Kind == TNK_Dependent_template_name) { 15031a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor AnnotateTemplateIdTokenAsType(&SS); 1513f5b61c394f4f205bcb4d316eb2a7a0a68b8af86Douglas Gregor SS.setScopeRep(0); 15239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 15339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::annot_typename) && 15439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor "AnnotateTemplateIdTokenAsType isn't working"); 15539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Token TypeToken = Tok; 15639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor ConsumeToken(); 15739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 15839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 15939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 16039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (!HasScopeSpecifier) { 16139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setBeginLoc(TypeToken.getLocation()); 16239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 16339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 16431a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor 16531a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor if (TypeToken.getAnnotationValue()) 16631a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor SS.setScopeRep( 16731a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, 16831a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor TypeToken.getAnnotationValue(), 16931a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor TypeToken.getAnnotationRange(), 17031a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor CCLoc)); 17131a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor else 17231a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor SS.setScopeRep(0); 17339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setEndLoc(CCLoc); 17439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor continue; 17567b9e831943300ce54e564e601971828ce4def15Chris Lattner } 17667b9e831943300ce54e564e601971828ce4def15Chris Lattner 17767b9e831943300ce54e564e601971828ce4def15Chris Lattner assert(false && "FIXME: Only type template names supported here"); 17839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 17939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 18039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 18139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 18239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 18339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 18439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 18539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor return HasScopeSpecifier; 186eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 187eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 188eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 189eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 190eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 191eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 192eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 193eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 194eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id: 195eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// identifier 196eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// operator-function-id 197eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// conversion-function-id [TODO] 198eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '~' class-name [TODO] 199eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// template-id [TODO] 200eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 201eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 202eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 203eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 204eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 205eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' template-id [TODO] 206eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 207eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 208eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 209eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 210eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 211eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 212eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 213eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 214eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 215eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 216eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 217eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 218eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 219eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 220eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 221eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 222eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 223eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 224eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 225eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 226eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 227eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 228eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 229eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 230eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 231eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 232eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 233eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 234eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 235eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 236eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 237eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 238ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 239ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 240ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 241ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 242ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 243ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian RedlParser::OwningExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 244eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 245eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 246eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 247eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 248eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 2497a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner ParseOptionalCXXScopeSpecifier(SS); 250eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 251eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // unqualified-id: 252eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // identifier 253eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // operator-function-id 2542def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // conversion-function-id 255eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '~' class-name [TODO] 256eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // template-id [TODO] 257eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 258eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis switch (Tok.getKind()) { 259eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis default: 26020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(Tok, diag::err_expected_unqualified_id)); 261eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 262eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::identifier: { 263eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // Consume the identifier so that we can see if it is followed by a '('. 264eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis IdentifierInfo &II = *Tok.getIdentifierInfo(); 265eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation L = ConsumeToken(); 266ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl return Actions.ActOnIdentifierExpr(CurScope, L, II, Tok.is(tok::l_paren), 267ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl &SS, isAddressOfOperand); 268eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 269eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 270eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::kw_operator: { 271eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation OperatorLoc = Tok.getLocation(); 2727452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (OverloadedOperatorKind Op = TryParseOperatorFunctionId()) 273cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXOperatorFunctionIdExpr( 274ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl CurScope, OperatorLoc, Op, Tok.is(tok::l_paren), SS, 275ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 2767452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (TypeTy *Type = ParseConversionFunctionId()) 277cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXConversionFunctionExpr(CurScope, OperatorLoc, Type, 278ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl Tok.is(tok::l_paren), SS, 279ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 28020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 2812def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // We already complained about a bad conversion-function-id, 2822def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // above. 28320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 284eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 285eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 286eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } // switch. 287eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 288eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis assert(0 && "The switch was supposed to take care everything."); 289eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 290eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 30020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXCasts() { 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown C++ cast!"); abort(); 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 31620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 318809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult CastTy = ParseTypeName(); 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3211ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 32220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LParenLoc = Tok.getLocation(), RParenLoc; 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 32621e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, CastName)) 32721e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 32921e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis OwningExprResult Result = ParseExpression(); 33021e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis 33121e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 33221e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (Result.isInvalid()) 33321e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis SkipUntil(tok::r_paren); 33421e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis 33521e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 33621e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 33721e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis else 33821e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 340809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (!Result.isInvalid() && !CastTy.isInvalid()) 34149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 342f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LAngleBracketLoc, CastTy.get(), 343809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 344f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move(Result), RParenLoc); 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 34620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 349c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 350c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 351c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 352c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 353c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 354c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 35520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXTypeid() { 356c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 357c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 358c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 359c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation LParenLoc = Tok.getLocation(); 360c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation RParenLoc; 361c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 362c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 363c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, 364c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl "typeid")) 36520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 366c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 36715faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl OwningExprResult Result(Actions); 368c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 369c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 370809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 371c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 372c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 373c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 374c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 375809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 37620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 377c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 378c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 379809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor Ty.get(), RParenLoc); 380c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 381e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // C++0x [expr.typeid]p3: 382e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // When typeid is applied to an expression other than an lvalue of a 383e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // polymorphic class type [...] The expression is an unevaluated 384e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // operand (Clause 5). 385e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // 386e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // Note that we can't tell whether the expression is an lvalue of a 387e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // polymorphic class type until after we've parsed the expression, so 388ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // we the expression is potentially potentially evaluated. 389ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor EnterExpressionEvaluationContext Unevaluated(Actions, 390ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor Action::PotentiallyPotentiallyEvaluated); 391c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 392c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 393c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 3940e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 395c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SkipUntil(tok::r_paren); 396c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 397c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 398c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 399c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 400effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 401c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 402c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 403c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 40420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 405c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 406c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 4075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 4085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 4105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 4115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 41220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXBoolLiteral() { 4135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 414f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 4155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 41650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 41750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 41850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 41950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 42050dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 42120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseThrowExpression() { 42250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 42350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 42420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 4252a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 4262a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 4272a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 4282a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 4292a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 4302a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 4312a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 4322a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 4332a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 4342a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 435f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, ExprArg(Actions)); 43650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 4372a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 4382f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Expr(ParseAssignmentExpression()); 43920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl if (Expr.isInvalid()) return move(Expr); 440f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, move(Expr)); 4412a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 44250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 4434cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4444cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 4454cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 4464cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 4474cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 4484cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 44920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXThis() { 4504cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 4514cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 452f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 4534cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 454987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 455987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 456987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 457987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 458987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 459987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 460987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 461987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier '(' expression-list[opt] ')' [C++ 5.2.3] 462987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typename-specifier '(' expression-list[opt] ')' [TODO] 463987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 46420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult 46520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 466987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 4675ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor TypeTy *TypeRep = Actions.ActOnTypeName(CurScope, DeclaratorInfo).get(); 468987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 469987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(Tok.is(tok::l_paren) && "Expected '('!"); 470987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation LParenLoc = ConsumeParen(); 471987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 472a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector Exprs(Actions); 473987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis CommaLocsTy CommaLocs; 474987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 475987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (Tok.isNot(tok::r_paren)) { 476987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (ParseExpressionList(Exprs, CommaLocs)) { 477987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SkipUntil(tok::r_paren); 47820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 479987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 480987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 481987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 482987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // Match the ')'. 483987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 484987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 485987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 486987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis "Unexpected number of commas!"); 487f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXTypeConstructExpr(DS.getSourceRange(), TypeRep, 488f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move_arg(Exprs), 489beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CommaLocs.data(), RParenLoc); 490987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 491987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 49271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// ParseCXXCondition - if/switch/while/for condition expression. 49371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 49471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 49571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 49671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 49771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 49871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 49971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 5002f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian RedlParser::OwningExprResult Parser::ParseCXXCondition() { 501a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis if (!isCXXConditionDeclaration()) 50271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return ParseExpression(); // expression 50371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 50471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation StartLoc = Tok.getLocation(); 50571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 50671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 50771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclSpec DS; 50871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 50971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 51071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 51171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 51271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 51371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 51471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 51571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 516ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 517ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl OwningExprResult AsmLabel(ParseSimpleAsm(&Loc)); 5180e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 51971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 5202f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 52171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 522effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 523ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 52471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 52571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 52671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 527ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Tok.is(tok::kw___attribute)) { 528ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 529ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl AttributeList *AttrList = ParseAttributes(&Loc); 530ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.AddAttributes(AttrList, Loc); 531ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 53271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 53371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 53471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.isNot(tok::equal)) 5352f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(Diag(Tok, diag::err_expected_equal_after_declarator)); 53671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation EqualLoc = ConsumeToken(); 5372f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult AssignExpr(ParseAssignmentExpression()); 5380e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AssignExpr.isInvalid()) 5392f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 5402f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl 541f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXConditionDeclarationExpr(CurScope, StartLoc, 542f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl DeclaratorInfo,EqualLoc, 543f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move(AssignExpr)); 54471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 54571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 546987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 547987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 548987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 549987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 550987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 551eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 552987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 553987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 554987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 555987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 556987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 557987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 558987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 559987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 560987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 561987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 562987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 563987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 564987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 565987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 566987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 567987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 568987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 569987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 570987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 571987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 572987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 573987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 574987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 575987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 576987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 577987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 57855a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 57955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 58055a7cefc846765ac7d142a63f773747a20518d71Chris Lattner assert(0 && "Annotation token should already be formed!"); 581987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis default: 582987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(0 && "Not a simple-type-specifier token!"); 583987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis abort(); 58455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 585987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 586b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 5871a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, 588eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Tok.getAnnotationValue()); 589987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 590987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 591987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 592987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 593987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 594987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec); 595987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 596987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 597987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec); 598987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 599987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 600987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec); 601987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 602987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 603987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec); 604987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 605987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 606987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec); 607987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 608987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 609987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec); 610987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 611987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 612987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec); 613987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 614987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 615987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec); 616987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 617987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 618987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec); 619987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 620987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 621987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec); 622987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 623987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 624987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec); 625987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 626987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 627987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 628987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 629987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 6309b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 631987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 632987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 633b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 634eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 635eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 636eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 637987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 6389b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 639987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 6401cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6412f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 6422f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 6432f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 6442f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 6452f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 6462f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 6472f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 6482f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 6492f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 6502f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 6512f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 6522f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 6532f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DS.SetRangeStart(Tok.getLocation()); 6542f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor const char *PrevSpec = 0; 6552f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor int isInvalid = 0; 6562f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 6572f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse one or more of the type specifiers. 6587a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner if (!ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec)) { 6591ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_operator_missing_type_specifier); 6602f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return true; 6612f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor } 6627a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner 663b8006e50bf378ddbab9601c1fa07f151ac538ff3Ted Kremenek while (ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec)) ; 6642f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 6652f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 6662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 6672f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 66843c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor/// TryParseOperatorFunctionId - Attempts to parse a C++ overloaded 6691cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator name (C++ [over.oper]). If successful, returns the 6701cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// predefined identifier that corresponds to that overloaded 6711cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator. Otherwise, returns NULL and does not consume any tokens. 6721cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 6731cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator-function-id: [C++ 13.5] 6741cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 'operator' operator 6751cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 6761cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator: one of 6771cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// new delete new[] delete[] 6781cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// + - * / % ^ & | ~ 6791cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ! = < > += -= *= /= %= 6801cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ^= &= |= << >> >>= <<= == != 6811cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// <= >= && || ++ -- , ->* -> 6821cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// () [] 683ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlOverloadedOperatorKind 684ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TryParseOperatorFunctionId(SourceLocation *EndLoc) { 6859057a81efaf15c543aab1c5c8488e8a9ed2c0ff4Argyrios Kyrtzidis assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 686ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 6871cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6881cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor OverloadedOperatorKind Op = OO_None; 6891cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor switch (NextToken().getKind()) { 6901cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_new: 6911cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 692ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'new' 6931cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 6941cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 695ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 6961cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 6971cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_New; 6981cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 6991cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_New; 7001cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 701ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 702ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 703e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7041cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7051cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_delete: 7061cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 707ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'delete' 7081cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 7091cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 710ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7111cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 7121cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_Delete; 7131cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 7141cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Delete; 7151cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 716ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 717ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 718e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7191cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 72002bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 7211cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::Token: Op = OO_##Name; break; 72202bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 7231cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor#include "clang/Basic/OperatorKinds.def" 7241cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7251cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_paren: 7261cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 7271cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeParen(); // '(' 728ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7291cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_paren, diag::err_expected_rparen); // ')' 730ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 731ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 732e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Call; 7331cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7341cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_square: 7351cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 7361cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 737ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7381cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 739ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 740ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 741e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Subscript; 7421cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7431cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor default: 744e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_None; 7451cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 74643c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor 74743c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor ConsumeToken(); // 'operator' 748ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeAnyToken(); // the operator itself 749ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 750ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 751e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7521cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor} 7532f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7542f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseConversionFunctionId - Parse a C++ conversion-function-id, 7552f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// which expresses the name of a user-defined conversion operator 7562f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// (C++ [class.conv.fct]p1). Returns the type that this operator is 7572f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// specifying a conversion for, or NULL if there was an error. 7582f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7592f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-function-id: [C++ 12.3.2] 7602f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// operator conversion-type-id 7612f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7622f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-type-id: 7632f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq conversion-declarator[opt] 7642f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7652f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-declarator: 7662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ptr-operator conversion-declarator[opt] 767ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TypeTy *Parser::ParseConversionFunctionId(SourceLocation *EndLoc) { 7682f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 7692f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor ConsumeToken(); // 'operator' 7702f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7712f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the type-specifier-seq. 7722f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DeclSpec DS; 7732f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) 7742f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 7752f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7762f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 7772f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // ptr-operators. 7782f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 7794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 780ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 781ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = D.getSourceRange().getEnd(); 7822f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7832f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Finish up the type. 7842f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Action::TypeResult Result = Actions.ActOnTypeName(CurScope, D); 7855ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor if (Result.isInvalid()) 7862f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 7872f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor else 7885ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor return Result.get(); 7892f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 7904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 7914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 7924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 79359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 79459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 79559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 79659232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 7974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 7984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 7994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 8004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 8014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 8024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 8034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 8044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 8054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 8064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 807cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 808cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 809cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 810cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 811cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 812cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 813cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 8144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 8154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 8164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// [C++0x] braced-init-list [TODO] 8174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 81859232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 81959232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 82059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 82159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 8224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 8244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 8254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 826a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector PlacementArgs(Actions); 8274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 8284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ParenTypeId; 830cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclSpec DS; 831cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 8324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 8334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 8344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = ConsumeParen(); 835cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 836cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 83720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 838cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementRParen = MatchRHSPunctuation(tok::r_paren, PlacementLParen); 841cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 842cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 84320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 844cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 846cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 8474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 8484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 8494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 8504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 8514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 8524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 853cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SourceLocation LParen = ConsumeParen(); 854cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 855ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 856cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 857cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl MatchRHSPunctuation(tok::r_paren, LParen); 8584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 8594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 860cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 861cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 862ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 863ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 864cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 865cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 866ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 8674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 8684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 871cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 872cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 873cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 874cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 875ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 876ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 877cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 878cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 879ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 8804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 8814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 882eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 883cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 88420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 885cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 887a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector ConstructorArgs(Actions); 8884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 8894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 8914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorLParen = ConsumeParen(); 8924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 8934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 894cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 895cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 89620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 897cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorRParen = MatchRHSPunctuation(tok::r_paren, ConstructorLParen); 900cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 901cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 90220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 903cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 9044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 906f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 907f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(PlacementArgs), PlacementRParen, 908f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl ParenTypeId, DeclaratorInfo, ConstructorLParen, 909f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(ConstructorArgs), ConstructorRParen); 9104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 9134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 9144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 9164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 9174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 9184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 91959232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 9204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 9214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 9224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 9234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LLoc = ConsumeBracket(); 9242f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Size(first ? ParseExpression() 9252f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 9260e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 9274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 9284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SkipUntil(tok::r_square); 9294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 9304c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 9324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 933ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation RLoc = MatchRHSPunctuation(tok::r_square, LLoc); 9344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl D.AddTypeInfo(DeclaratorChunk::getArray(0, /*static=*/false, /*star=*/false, 935ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Size.release(), LLoc), 936ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl RLoc); 9374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 938ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (RLoc.isInvalid()) 9394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 9404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9434c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 9444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 9454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 9474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 9484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 9494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 9514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 9524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 953cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redlbool Parser::ParseExpressionListOrTypeId(ExprListTy &PlacementArgs, 95459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 9554c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 9564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 957cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 958ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 959cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 960eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 9614c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 9644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 9654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 9664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 9674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 9704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 9714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 97259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 97359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 97459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 97559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 97659232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 9774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 9784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 9794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 98059232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 98159232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 98259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 98359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 9844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 9864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 9874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_square)) { 9884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 9894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LHS = ConsumeBracket(); 9904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation RHS = MatchRHSPunctuation(tok::r_square, LHS); 9914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (RHS.isInvalid()) 99220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 9934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9952f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Operand(ParseCastExpression(false)); 9960e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 99720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Operand); 9984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 999f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, move(Operand)); 10004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 100164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 100264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redlstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) 100364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 100464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 100564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl default: assert(false && "Not a known unary type trait."); 100664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 100764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 100864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 100964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 101064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 101164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_constructor: return UTT_HasTrivialConstructor; 101264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 101364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 101464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 101564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 101664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 101764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 101864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 101964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 102064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 102164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 102264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 102364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 102464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 102564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 102664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 102764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 102864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 102964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 103064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 103164b45f7e0d3167f040841ac2920aead7f080730dSebastian RedlParser::OwningExprResult Parser::ParseUnaryTypeTrait() 103264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 103364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 103464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 103564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 103664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation LParen = Tok.getLocation(); 103764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 103864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 103964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 104064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 104164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 104264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 1043809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 104464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 104564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 104664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 1047809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 1048809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 1049809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 1050809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, LParen, Ty.get(), RParen); 105164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 1052f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1053f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 1054f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 1055f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 1056f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::OwningExprResult 1057f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 1058f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis TypeTy *&CastTy, 1059f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation LParenLoc, 1060f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation &RParenLoc) { 1061f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(getLang().CPlusPlus && "Should only be called for C++!"); 1062f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 1063f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 1064f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1065f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis OwningExprResult Result(Actions, true); 1066f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis CastTy = 0; 1067f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1068f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 1069f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1070f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 1071f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 1072f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 1073f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 1074f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1075f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 1076f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 1077f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 1078f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1079f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 1080a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 1081f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // 1082f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // It uses a scheme similar to parsing inline methods. The parenthesized 1083f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // tokens are cached, the context that follows is determined (possibly by 1084f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parsing a cast-expression), and then we re-introduce the cached tokens 1085f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // into the token stream and parse them appropriately. 1086f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1087f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParenParseOption ParseAs; 1088f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis CachedTokens Toks; 1089f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1090f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Store the tokens of the parentheses. We will parse them after we determine 1091f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // the context that follows them. 1092f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (!ConsumeAndStoreUntil(tok::r_paren, tok::unknown, Toks, tok::semi)) { 1093f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We didn't find the ')' we expected. 1094f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1095f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1096f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1097f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1098f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 1099f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = CompoundLiteral; 1100f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } else { 1101f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis bool NotCastExpr; 1102b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // FIXME: Special-case ++ and --: "(S())++;" is not a cast-expression 1103b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman if (Tok.is(tok::l_paren) && NextToken().is(tok::r_paren)) { 1104b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr = true; 1105b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } else { 1106b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // Try parsing the cast-expression that may follow. 1107b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // If it is not a cast-expression, NotCastExpr will be true and no token 1108b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // will be consumed. 1109b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman Result = ParseCastExpression(false/*isUnaryExpression*/, 1110b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman false/*isAddressofOperand*/, 1111b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr); 1112b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } 1113f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1114f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // If we parsed a cast-expression, it's really a type-id, otherwise it's 1115f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // an expression. 1116f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = NotCastExpr ? SimpleExpr : CastExpr; 1117f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1118f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1119f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // The current token should go after the cached tokens. 1120f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Toks.push_back(Tok); 1121f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Re-enter the stored parenthesized tokens into the token stream, so we may 1122f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parse them now. 1123f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis PP.EnterTokenStream(Toks.data(), Toks.size(), 1124f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis true/*DisableMacroExpansion*/, false/*OwnsTokens*/); 1125f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Drop the current token and bring the first cached one. It's the same token 1126f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // as when we entered this function. 1127f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ConsumeAnyToken(); 1128f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1129f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs >= CompoundLiteral) { 1130f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis TypeResult Ty = ParseTypeName(); 1131f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1132f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Match the ')'. 1133f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (Tok.is(tok::r_paren)) 1134f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis RParenLoc = ConsumeParen(); 1135f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis else 1136f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1137f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1138f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs == CompoundLiteral) { 1139f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ExprType = CompoundLiteral; 1140f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ParseCompoundLiteralExpression(Ty.get(), LParenLoc, RParenLoc); 1141f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } 1142f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1143f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We parsed '(' type-id ')' and the thing after it wasn't a '{'. 1144f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == CastExpr); 1145f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1146f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (Ty.isInvalid()) 1147f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ExprError(); 1148f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1149f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis CastTy = Ty.get(); 1150f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1151f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Result is what ParseCastExpression returned earlier. 1152f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 1153f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Result = Actions.ActOnCastExpr(LParenLoc, CastTy, RParenLoc,move(Result)); 1154f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 1155f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1156f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1157f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Not a compound literal, and not followed by a cast-expression. 1158f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == SimpleExpr); 1159f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1160f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 1161f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Result = ParseExpression(); 1162f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 1163f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Result = Actions.ActOnParenExpr(LParenLoc, Tok.getLocation(), move(Result)); 1164f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1165f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 1166f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 1167f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SkipUntil(tok::r_paren); 1168f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1169f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1170f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1171f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 1172f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 1173f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis else 1174f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1175f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1176f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 1177f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 1178