ParseExprCXX.cpp revision a558a897cbe83a21914058348ffbdcf827530ad4
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 8739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 8839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // type-name '::' 8939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier 'template'[opt] simple-template-id '::' 9039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if ((Tok.is(tok::identifier) && NextToken().is(tok::less)) || 9139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Tok.is(tok::kw_template)) { 9239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // Parse the optional 'template' keyword, then make sure we have 9339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 'identifier <' after it. 9439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::kw_template)) { 95c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor SourceLocation TemplateKWLoc = ConsumeToken(); 9639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 9739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.isNot(tok::identifier)) { 9839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Diag(Tok.getLocation(), 9939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor diag::err_id_after_template_in_nested_name_spec) 10039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor << SourceRange(TemplateKWLoc); 10139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 10239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 10339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 10439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (NextToken().isNot(tok::less)) { 10539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Diag(NextToken().getLocation(), 10639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor diag::err_less_after_template_name_in_nested_name_spec) 10739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor << Tok.getIdentifierInfo()->getName() 10839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor << SourceRange(TemplateKWLoc, Tok.getLocation()); 10939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 11039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 111c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor 112c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor TemplateTy Template 113c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor = Actions.ActOnDependentTemplateName(TemplateKWLoc, 114c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor *Tok.getIdentifierInfo(), 115c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor Tok.getLocation(), 116c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor SS); 117c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor AnnotateTemplateIdToken(Template, TNK_Dependent_template_name, 118c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor &SS, TemplateKWLoc, false); 119c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor continue; 12039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 12139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 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; 17539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } else 176c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor assert(false && "FIXME: Only type template names supported here"); 17739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 17839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 17939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 18039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 18139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 18239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 18339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 18439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor return HasScopeSpecifier; 185eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 186eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 187eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 188eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 189eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 190eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 191eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 192eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 193eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id: 194eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// identifier 195eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// operator-function-id 196eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// conversion-function-id [TODO] 197eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '~' class-name [TODO] 198eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// template-id [TODO] 199eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 200eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 201eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 202eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 203eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 204eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' template-id [TODO] 205eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 206eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 207eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 208eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 209eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 210eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 211eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 212eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 213eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 214eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 215eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 216eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 217eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 218eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 219eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 220eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 221eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 222eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 223eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 224eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 225eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 226eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 227eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 228eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 229eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 230eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 231eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 232eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 233eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 234eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 235eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 236eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 237ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 238ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 239ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 240ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 241ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 242ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian RedlParser::OwningExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 243eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 244eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 245eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 246eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 247eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 2487a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner ParseOptionalCXXScopeSpecifier(SS); 249eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 250eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // unqualified-id: 251eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // identifier 252eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // operator-function-id 2532def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // conversion-function-id 254eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '~' class-name [TODO] 255eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // template-id [TODO] 256eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 257eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis switch (Tok.getKind()) { 258eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis default: 25920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(Tok, diag::err_expected_unqualified_id)); 260eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 261eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::identifier: { 262eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // Consume the identifier so that we can see if it is followed by a '('. 263eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis IdentifierInfo &II = *Tok.getIdentifierInfo(); 264eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation L = ConsumeToken(); 265ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl return Actions.ActOnIdentifierExpr(CurScope, L, II, Tok.is(tok::l_paren), 266ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl &SS, isAddressOfOperand); 267eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 268eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 269eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::kw_operator: { 270eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation OperatorLoc = Tok.getLocation(); 2717452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (OverloadedOperatorKind Op = TryParseOperatorFunctionId()) 272cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXOperatorFunctionIdExpr( 273ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl CurScope, OperatorLoc, Op, Tok.is(tok::l_paren), SS, 274ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 2757452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (TypeTy *Type = ParseConversionFunctionId()) 276cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXConversionFunctionExpr(CurScope, OperatorLoc, Type, 277ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl Tok.is(tok::l_paren), SS, 278ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 27920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 2802def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // We already complained about a bad conversion-function-id, 2812def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // above. 28220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 283eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 284eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 285eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } // switch. 286eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 287eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis assert(0 && "The switch was supposed to take care everything."); 288eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 289eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 29920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXCasts() { 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown C++ cast!"); abort(); 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 31520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 317809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult CastTy = ParseTypeName(); 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3201ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 32120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LParenLoc = Tok.getLocation(), RParenLoc; 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 32521e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, CastName)) 32621e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 32821e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis OwningExprResult Result = ParseExpression(); 32921e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis 33021e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 33121e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (Result.isInvalid()) 33221e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis SkipUntil(tok::r_paren); 33321e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis 33421e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 33521e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 33621e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis else 33721e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 3385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 339809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (!Result.isInvalid() && !CastTy.isInvalid()) 34049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 341f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LAngleBracketLoc, CastTy.get(), 342809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 343f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move(Result), RParenLoc); 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 34520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 3465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 348c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 349c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 350c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 351c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 352c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 353c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 35420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXTypeid() { 355c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 356c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 357c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 358c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation LParenLoc = Tok.getLocation(); 359c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation RParenLoc; 360c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 361c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 362c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, 363c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl "typeid")) 36420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 365c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 36615faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl OwningExprResult Result(Actions); 367c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 368c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 369809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 370c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 371c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 372c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 373c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 374809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 37520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 376c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 377c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 378809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor Ty.get(), RParenLoc); 379c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 380c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 381c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 382c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 3830e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 384c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SkipUntil(tok::r_paren); 385c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 386c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 387c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 388c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 389effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 390c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 391c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 392c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 39320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 394c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 395c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 3965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 3975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 3985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 40120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXBoolLiteral() { 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 403f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 4045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 40550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 40650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 40750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 40850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 40950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 41020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseThrowExpression() { 41150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 41250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 41320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 4142a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 4152a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 4162a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 4172a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 4182a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 4192a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 4202a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 4212a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 4222a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 4232a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 424f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, ExprArg(Actions)); 42550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 4262a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 4272f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Expr(ParseAssignmentExpression()); 42820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl if (Expr.isInvalid()) return move(Expr); 429f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, move(Expr)); 4302a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 43150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 4324cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4334cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 4344cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 4354cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 4364cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 4374cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 43820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXThis() { 4394cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 4404cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 441f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 4424cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 443987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 444987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 445987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 446987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 447987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 448987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 449987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 450987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier '(' expression-list[opt] ')' [C++ 5.2.3] 451987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typename-specifier '(' expression-list[opt] ')' [TODO] 452987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 45320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult 45420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 455987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 4565ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor TypeTy *TypeRep = Actions.ActOnTypeName(CurScope, DeclaratorInfo).get(); 457987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 458987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(Tok.is(tok::l_paren) && "Expected '('!"); 459987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation LParenLoc = ConsumeParen(); 460987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 461a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector Exprs(Actions); 462987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis CommaLocsTy CommaLocs; 463987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 464987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (Tok.isNot(tok::r_paren)) { 465987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (ParseExpressionList(Exprs, CommaLocs)) { 466987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SkipUntil(tok::r_paren); 46720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 468987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 469987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 470987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 471987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // Match the ')'. 472987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 473987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 474987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 475987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis "Unexpected number of commas!"); 476f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXTypeConstructExpr(DS.getSourceRange(), TypeRep, 477f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move_arg(Exprs), 478beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CommaLocs.data(), RParenLoc); 479987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 480987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 48171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// ParseCXXCondition - if/switch/while/for condition expression. 48271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 48371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 48471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 48571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 48671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 48771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 48871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 4892f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian RedlParser::OwningExprResult Parser::ParseCXXCondition() { 490a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis if (!isCXXConditionDeclaration()) 49171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return ParseExpression(); // expression 49271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 49371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation StartLoc = Tok.getLocation(); 49471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 49571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 49671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclSpec DS; 49771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 49871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 49971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 50071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 50171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 50271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 50371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 50471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 505ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 506ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl OwningExprResult AsmLabel(ParseSimpleAsm(&Loc)); 5070e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 50871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 5092f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 51071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 511effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 512ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 51371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 51471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 51571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 516ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Tok.is(tok::kw___attribute)) { 517ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 518ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl AttributeList *AttrList = ParseAttributes(&Loc); 519ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.AddAttributes(AttrList, Loc); 520ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 52171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 52271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 52371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.isNot(tok::equal)) 5242f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(Diag(Tok, diag::err_expected_equal_after_declarator)); 52571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation EqualLoc = ConsumeToken(); 5262f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult AssignExpr(ParseAssignmentExpression()); 5270e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AssignExpr.isInvalid()) 5282f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 5292f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl 530f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXConditionDeclarationExpr(CurScope, StartLoc, 531f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl DeclaratorInfo,EqualLoc, 532f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move(AssignExpr)); 53371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 53471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 535987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 536987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 537987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 538987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 539987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 540eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 541987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 542987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 543987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 544987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 545987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 546987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 547987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 548987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 549987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 550987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 551987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 552987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 553987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 554987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 555987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 556987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 557987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 558987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 559987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 560987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 561987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 562987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 563987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 564987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 565987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 566987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 56755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 56855a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 56955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner assert(0 && "Annotation token should already be formed!"); 570987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis default: 571987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(0 && "Not a simple-type-specifier token!"); 572987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis abort(); 57355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 574987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 575b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 5761a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, 577eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Tok.getAnnotationValue()); 578987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 579987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 580987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 581987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 582987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 583987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec); 584987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 585987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 586987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec); 587987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 588987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 589987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec); 590987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 591987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 592987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec); 593987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 594987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 595987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec); 596987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 597987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 598987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec); 599987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 600987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 601987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec); 602987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 603987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 604987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec); 605987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 606987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 607987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec); 608987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 609987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 610987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec); 611987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 612987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 613987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec); 614987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 615987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 616987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 617987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 618987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 6199b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 620987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 621987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 622b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 623eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 624eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 625eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 626987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 6279b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 628987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 6291cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6302f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 6312f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 6322f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 6332f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 6342f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 6352f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 6362f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 6372f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 6382f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 6392f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 6402f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 6412f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 6422f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DS.SetRangeStart(Tok.getLocation()); 6432f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor const char *PrevSpec = 0; 6442f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor int isInvalid = 0; 6452f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 6462f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse one or more of the type specifiers. 6477a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner if (!ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec)) { 6481ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_operator_missing_type_specifier); 6492f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return true; 6502f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor } 6517a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner 652b8006e50bf378ddbab9601c1fa07f151ac538ff3Ted Kremenek while (ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec)) ; 6532f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 6542f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 6552f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 6562f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 65743c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor/// TryParseOperatorFunctionId - Attempts to parse a C++ overloaded 6581cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator name (C++ [over.oper]). If successful, returns the 6591cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// predefined identifier that corresponds to that overloaded 6601cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator. Otherwise, returns NULL and does not consume any tokens. 6611cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 6621cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator-function-id: [C++ 13.5] 6631cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 'operator' operator 6641cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 6651cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator: one of 6661cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// new delete new[] delete[] 6671cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// + - * / % ^ & | ~ 6681cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ! = < > += -= *= /= %= 6691cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ^= &= |= << >> >>= <<= == != 6701cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// <= >= && || ++ -- , ->* -> 6711cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// () [] 672ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlOverloadedOperatorKind 673ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TryParseOperatorFunctionId(SourceLocation *EndLoc) { 6749057a81efaf15c543aab1c5c8488e8a9ed2c0ff4Argyrios Kyrtzidis assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 675ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 6761cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6771cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor OverloadedOperatorKind Op = OO_None; 6781cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor switch (NextToken().getKind()) { 6791cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_new: 6801cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 681ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'new' 6821cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 6831cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 684ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 6851cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 6861cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_New; 6871cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 6881cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_New; 6891cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 690ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 691ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 692e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 6931cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6941cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_delete: 6951cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 696ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'delete' 6971cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 6981cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 699ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7001cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 7011cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_Delete; 7021cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 7031cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Delete; 7041cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 705ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 706ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 707e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7081cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 70902bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 7101cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::Token: Op = OO_##Name; break; 71102bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 7121cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor#include "clang/Basic/OperatorKinds.def" 7131cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7141cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_paren: 7151cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 7161cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeParen(); // '(' 717ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7181cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_paren, diag::err_expected_rparen); // ')' 719ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 720ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 721e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Call; 7221cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7231cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_square: 7241cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 7251cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 726ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7271cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 728ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 729ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 730e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Subscript; 7311cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7321cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor default: 733e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_None; 7341cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 73543c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor 73643c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor ConsumeToken(); // 'operator' 737ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeAnyToken(); // the operator itself 738ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 739ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 740e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7411cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor} 7422f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7432f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseConversionFunctionId - Parse a C++ conversion-function-id, 7442f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// which expresses the name of a user-defined conversion operator 7452f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// (C++ [class.conv.fct]p1). Returns the type that this operator is 7462f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// specifying a conversion for, or NULL if there was an error. 7472f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7482f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-function-id: [C++ 12.3.2] 7492f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// operator conversion-type-id 7502f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7512f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-type-id: 7522f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq conversion-declarator[opt] 7532f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7542f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-declarator: 7552f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ptr-operator conversion-declarator[opt] 756ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TypeTy *Parser::ParseConversionFunctionId(SourceLocation *EndLoc) { 7572f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 7582f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor ConsumeToken(); // 'operator' 7592f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7602f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the type-specifier-seq. 7612f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DeclSpec DS; 7622f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) 7632f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 7642f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7652f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 7662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // ptr-operators. 7672f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 7684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 769ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 770ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = D.getSourceRange().getEnd(); 7712f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7722f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Finish up the type. 7732f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Action::TypeResult Result = Actions.ActOnTypeName(CurScope, D); 7745ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor if (Result.isInvalid()) 7752f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 7762f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor else 7775ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor return Result.get(); 7782f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 7794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 7804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 7814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 78259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 78359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 78459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 78559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 7864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 7874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 7884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 7894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 7904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 7914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 7924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 7934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 7944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 7954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 796cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 797cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 798cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 799cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 800cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 801cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 802cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 8034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 8044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 8054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// [C++0x] braced-init-list [TODO] 8064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 80759232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 80859232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 80959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 81059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 8114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 8134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 8144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 815a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector PlacementArgs(Actions); 8164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 8174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ParenTypeId; 819cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclSpec DS; 820cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 8214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 8224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 8234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = ConsumeParen(); 824cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 825cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 82620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 827cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementRParen = MatchRHSPunctuation(tok::r_paren, PlacementLParen); 830cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 831cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 83220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 833cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 835cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 8364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 8374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 8384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 8394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 8404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 8414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 842cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SourceLocation LParen = ConsumeParen(); 843cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 844ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 845cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 846cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl MatchRHSPunctuation(tok::r_paren, LParen); 8474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 8484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 849cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 850cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 851ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 852ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 853cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 854cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 855ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 8564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 8574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 860cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 861cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 862cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 863cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 864ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 865ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 866cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 867cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 868ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 8694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 8704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 871eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 872cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 87320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 874cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 876a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector ConstructorArgs(Actions); 8774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 8784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 8804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorLParen = ConsumeParen(); 8814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 8824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 883cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 884cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 88520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 886cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorRParen = MatchRHSPunctuation(tok::r_paren, ConstructorLParen); 889cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 890cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 89120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 892cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 895f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 896f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(PlacementArgs), PlacementRParen, 897f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl ParenTypeId, DeclaratorInfo, ConstructorLParen, 898f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(ConstructorArgs), ConstructorRParen); 8994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 9024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 9034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 9054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 9064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 9074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 90859232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 9094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 9104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 9114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 9124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LLoc = ConsumeBracket(); 9132f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Size(first ? ParseExpression() 9142f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 9150e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 9164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 9174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SkipUntil(tok::r_square); 9184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 9194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 9214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 922ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation RLoc = MatchRHSPunctuation(tok::r_square, LLoc); 9234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl D.AddTypeInfo(DeclaratorChunk::getArray(0, /*static=*/false, /*star=*/false, 924ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Size.release(), LLoc), 925ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl RLoc); 9264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 927ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (RLoc.isInvalid()) 9284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 9294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9304c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 9334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 9344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9354c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 9364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 9374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 9384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 9404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 9414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 942cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redlbool Parser::ParseExpressionListOrTypeId(ExprListTy &PlacementArgs, 94359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 9444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 9454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 946cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 947ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 948cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 949eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 9504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 9534c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 9544c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 9554c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 9564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 9594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 9604c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 96159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 96259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 96359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 96459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 96559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 9664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 9674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 9684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 96959232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 97059232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 97159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 97259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 9734c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 9754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 9764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_square)) { 9774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 9784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LHS = ConsumeBracket(); 9794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation RHS = MatchRHSPunctuation(tok::r_square, LHS); 9804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (RHS.isInvalid()) 98120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 9824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9834c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9842f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Operand(ParseCastExpression(false)); 9850e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 98620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Operand); 9874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 988f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, move(Operand)); 9894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 99064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 99164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redlstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) 99264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 99364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 99464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl default: assert(false && "Not a known unary type trait."); 99564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 99664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 99764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 99864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 99964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 100064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_constructor: return UTT_HasTrivialConstructor; 100164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 100264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 100364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 100464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 100564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 100664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 100764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 100864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 100964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 101064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 101164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 101264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 101364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 101464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 101564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 101664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 101764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 101864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 101964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 102064b45f7e0d3167f040841ac2920aead7f080730dSebastian RedlParser::OwningExprResult Parser::ParseUnaryTypeTrait() 102164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 102264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 102364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 102464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 102564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation LParen = Tok.getLocation(); 102664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 102764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 102864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 102964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 103064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 103164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 1032809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 103364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 103464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 103564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 1036809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 1037809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 1038809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 1039809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, LParen, Ty.get(), RParen); 104064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 1041f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1042f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 1043f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 1044f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 1045f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::OwningExprResult 1046f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 1047f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis TypeTy *&CastTy, 1048f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation LParenLoc, 1049f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation &RParenLoc) { 1050f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(getLang().CPlusPlus && "Should only be called for C++!"); 1051f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 1052f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 1053f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1054f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis OwningExprResult Result(Actions, true); 1055f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis CastTy = 0; 1056f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1057f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 1058f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1059f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 1060f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 1061f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 1062f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 1063f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1064f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 1065f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 1066f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 1067f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1068f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 1069a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 1070f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1071f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Start tentantive parsing. 1072f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis TentativeParsingAction PA(*this); 1073f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1074f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Parse the type-id but don't create a type with ActOnTypeName yet. 1075f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis DeclSpec DS; 1076f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 1077f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1078f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Parse the abstract-declarator, if present. 1079f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 1080f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 1081f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1082f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Tok.is(tok::r_paren)) { 1083f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis PA.Commit(); 1084f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1085f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1086f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1087f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1088f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 1089f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1090f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 1091f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Compound literal. Ok, we can commit the parsed tokens and continue 1092f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // normal parsing. 1093f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = CompoundLiteral; 1094f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis PA.Commit(); 1095f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis TypeResult Ty = true; 1096f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!DeclaratorInfo.isInvalidType()) 1097f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Ty = Actions.ActOnTypeName(CurScope, DeclaratorInfo); 1098f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ParseCompoundLiteralExpression(Ty.get(), LParenLoc, RParenLoc); 1099f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1100f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1101f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We parsed '(' type-name ')' and the thing after it wasn't a '{'. 1102f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1103f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (DeclaratorInfo.isInvalidType()) { 1104f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis PA.Commit(); 1105f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1106f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1107f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1108f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis bool NotCastExpr; 1109f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Parse the cast-expression that follows it next. 1110f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Result = ParseCastExpression(false/*isUnaryExpression*/, 1111f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis false/*isAddressofOperand*/, 1112f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis NotCastExpr); 1113f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1114f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (NotCastExpr == false) { 1115f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We parsed a cast-expression. That means it's really a type-id, so commit 1116f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // the parsed tokens and continue normal parsing. 1117f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis PA.Commit(); 1118f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis TypeResult Ty = Actions.ActOnTypeName(CurScope, DeclaratorInfo); 1119f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis CastTy = Ty.get(); 1120f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 1121f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Result = Actions.ActOnCastExpr(LParenLoc, CastTy, RParenLoc,move(Result)); 1122f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 1123f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1124f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1125a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // If we get here, the things after the parens are not the start of 1126f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // a cast-expression. This means we must actually parse the tokens inside 1127f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // the parens as an expression. 1128f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis PA.Revert(); 1129f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1130f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Result = ParseExpression(); 1131f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 1132f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 1133f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Result = Actions.ActOnParenExpr(LParenLoc, Tok.getLocation(), move(Result)); 1134f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1135f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 1136f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 1137f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SkipUntil(tok::r_paren); 1138f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1139f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1140f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1141f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 1142f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 1143f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis else 1144f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1145f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1146f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 1147f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 1148