ParseExprCXX.cpp revision 7532dc66648cfe7432c9fe66dec5225f0ab301c6
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" 17a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl#include "AstGuard.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 207a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// ParseOptionalCXXScopeSpecifier - Parse global scope or 217a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// nested-name-specifier if present. Returns true if a nested-name-specifier 227a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// was parsed from the token stream. Note that this routine will not parse 237a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// ::new or ::delete, it will just leave them in the token stream. 24eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 25eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 26eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 27eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 28eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 29eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 30eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 31eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 32eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 33eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 347a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattnerbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS) { 354bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 367452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 374bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 38eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 393507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep(Tok.getAnnotationValue()); 40eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setRange(Tok.getAnnotationRange()); 41eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 424bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis return true; 43eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 44e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 4539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 4639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 475b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 485b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 495b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 505b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 515b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 5255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 5355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 54357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SourceLocation CCLoc = ConsumeToken(); 55357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SS.setBeginLoc(CCLoc); 563507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep(Actions.ActOnCXXGlobalScopeSpecifier(CurScope, CCLoc)); 57357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SS.setEndLoc(CCLoc); 5839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 59eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 60eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 6139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 6239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 6339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // type-name '::' 6439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // namespace-name '::' 6539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier identifier '::' 6639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::identifier) && NextToken().is(tok::coloncolon)) { 6739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We have an identifier followed by a '::'. Lookup this name 6839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // as the name in a nested-name-specifier. 6939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor IdentifierInfo *II = Tok.getIdentifierInfo(); 7039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation IdLoc = ConsumeToken(); 7139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 7239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 7339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 7439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (!HasScopeSpecifier) { 7539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setBeginLoc(IdLoc); 7639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 7739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 7839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 7939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (SS.isInvalid()) 8039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor continue; 8139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 823507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep( 8339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, IdLoc, CCLoc, *II)); 8439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setEndLoc(CCLoc); 85eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis continue; 8639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 87eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 8839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 8939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // type-name '::' 9039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier 'template'[opt] simple-template-id '::' 9139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if ((Tok.is(tok::identifier) && NextToken().is(tok::less)) || 9239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Tok.is(tok::kw_template)) { 9339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // Parse the optional 'template' keyword, then make sure we have 9439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 'identifier <' after it. 9539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation TemplateKWLoc; 9639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::kw_template)) { 9739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor TemplateKWLoc = ConsumeToken(); 9839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 9939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.isNot(tok::identifier)) { 10039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Diag(Tok.getLocation(), 10139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor diag::err_id_after_template_in_nested_name_spec) 10239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor << SourceRange(TemplateKWLoc); 10339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 10439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 10539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 10639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (NextToken().isNot(tok::less)) { 10739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Diag(NextToken().getLocation(), 10839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor diag::err_less_after_template_name_in_nested_name_spec) 10939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor << Tok.getIdentifierInfo()->getName() 11039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor << SourceRange(TemplateKWLoc, Tok.getLocation()); 11139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 11239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 11339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 11439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor else { 11539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // FIXME: If the nested-name-specifier thus far is dependent, 11639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // we need to break out of here, because this '<' is taken as 11739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // an operator and not as part of a simple-template-id. 11839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 11939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 1207532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor TemplateTy Template; 12139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor TemplateNameKind TNK = TNK_Non_template; 12239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // FIXME: If the nested-name-specifier thus far is dependent, 12339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // set TNK = TNK_Dependent_template_name and skip the 12439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // "isTemplateName" check. 12539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor TNK = Actions.isTemplateName(*Tok.getIdentifierInfo(), 12639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor CurScope, Template, &SS); 12739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (TNK) { 12839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We have found a template name, so annotate this this token 12939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // with a template-id annotation. We do not permit the 13039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // template-id to be translated into a type annotation, 13139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // because some clients (e.g., the parsing of class template 13239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // specializations) still want to see the original template-id 13339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // token. 13439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor AnnotateTemplateIdToken(Template, TNK, &SS, TemplateKWLoc, false); 13539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor continue; 13639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 13739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 13839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 13939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 14039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We have 14139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 14239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // simple-template-id '::' 14339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 14439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // So we need to check whether the simple-template-id is of the 14539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // right kind (it should name a type), and then convert it into 14639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // a type within the nested-name-specifier. 14739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor TemplateIdAnnotation *TemplateId 14839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 1494bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 15039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (TemplateId->Kind == TNK_Class_template) { 15139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (AnnotateTemplateIdTokenAsType(&SS)) 152e4e5b054b4917f0ee493bb2fda5b1ec749bfb9a1Douglas Gregor SS.clear(); 15339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 15439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::annot_typename) && 15539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor "AnnotateTemplateIdTokenAsType isn't working"); 15639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 15739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Token TypeToken = Tok; 15839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor ConsumeToken(); 15939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 16039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 16139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 16239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (!HasScopeSpecifier) { 16339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setBeginLoc(TypeToken.getLocation()); 16439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 16539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 16639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 1673507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep( 16839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, 16939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor TypeToken.getAnnotationValue(), 17039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor TypeToken.getAnnotationRange(), 17139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor CCLoc)); 17239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setEndLoc(CCLoc); 17339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor continue; 17439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } else 17539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(false && "FIXME: Only class template names supported here"); 17639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 17739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 17839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 17939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 18039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 18139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 18239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 18339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor return HasScopeSpecifier; 184eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 185eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 186eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 187eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 188eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 189eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 190eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 191eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 192eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id: 193eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// identifier 194eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// operator-function-id 195eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// conversion-function-id [TODO] 196eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '~' class-name [TODO] 197eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// template-id [TODO] 198eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 199eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 200eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 201eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 202eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 203eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' template-id [TODO] 204eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 205eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 206eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 207eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 208eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 209eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 210eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 211eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 212eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 213eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 214eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 215eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 216eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 217eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 218eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 219eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 220eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 221eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 222eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 223eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 224eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 225eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 226eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 227eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 228eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 229eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 230eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 231eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 232eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 233eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 234eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 235eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 236ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 237ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 238ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 239ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 240ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 241ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian RedlParser::OwningExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 242eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 243eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 244eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 245eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 246eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 2477a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner ParseOptionalCXXScopeSpecifier(SS); 248eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 249eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // unqualified-id: 250eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // identifier 251eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // operator-function-id 2522def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // conversion-function-id 253eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '~' class-name [TODO] 254eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // template-id [TODO] 255eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 256eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis switch (Tok.getKind()) { 257eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis default: 25820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(Tok, diag::err_expected_unqualified_id)); 259eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 260eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::identifier: { 261eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // Consume the identifier so that we can see if it is followed by a '('. 262eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis IdentifierInfo &II = *Tok.getIdentifierInfo(); 263eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation L = ConsumeToken(); 264ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl return Actions.ActOnIdentifierExpr(CurScope, L, II, Tok.is(tok::l_paren), 265ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl &SS, isAddressOfOperand); 266eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 267eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 268eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::kw_operator: { 269eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation OperatorLoc = Tok.getLocation(); 2707452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (OverloadedOperatorKind Op = TryParseOperatorFunctionId()) 271cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXOperatorFunctionIdExpr( 272ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl CurScope, OperatorLoc, Op, Tok.is(tok::l_paren), SS, 273ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 2747452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (TypeTy *Type = ParseConversionFunctionId()) 275cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXConversionFunctionExpr(CurScope, OperatorLoc, Type, 276ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl Tok.is(tok::l_paren), SS, 277ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 27820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 2792def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // We already complained about a bad conversion-function-id, 2802def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // above. 28120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 282eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 283eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 284eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } // switch. 285eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 286eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis assert(0 && "The switch was supposed to take care everything."); 287eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 288eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 29820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXCasts() { 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown C++ cast!"); abort(); 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 31420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 316809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult CastTy = ParseTypeName(); 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3191ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 32020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LParenLoc = Tok.getLocation(), RParenLoc; 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3241ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (Tok.isNot(tok::l_paren)) 32520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(Tok, diag::err_expected_lparen_after) << CastName); 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 327d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult Result(ParseSimpleParenExpression(RParenLoc)); 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 329809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (!Result.isInvalid() && !CastTy.isInvalid()) 33049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 331f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LAngleBracketLoc, CastTy.get(), 332809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 333f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move(Result), RParenLoc); 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 33520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 338c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 339c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 340c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 341c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 342c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 343c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 34420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXTypeid() { 345c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 346c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 347c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 348c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation LParenLoc = Tok.getLocation(); 349c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation RParenLoc; 350c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 351c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 352c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, 353c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl "typeid")) 35420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 355c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 35615faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl OwningExprResult Result(Actions); 357c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 358c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 359809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 360c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 361c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 362c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 363c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 364809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 36520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 366c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 367c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 368809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor Ty.get(), RParenLoc); 369c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 370c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 371c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 372c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 3730e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 374c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SkipUntil(tok::r_paren); 375c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 376c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 377c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 378c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 379effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 380c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 381c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 382c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 38320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 384c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 385c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 3865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 3875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 3885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 3905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 39120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXBoolLiteral() { 3925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 393f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 3945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 39550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 39650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 39750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 39850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 39950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 40020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseThrowExpression() { 40150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 40250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 40320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 4042a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 4052a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 4062a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 4072a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 4082a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 4092a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 4102a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 4112a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 4122a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 4132a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 414f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, ExprArg(Actions)); 41550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 4162a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 4172f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Expr(ParseAssignmentExpression()); 41820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl if (Expr.isInvalid()) return move(Expr); 419f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, move(Expr)); 4202a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 42150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 4224cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4234cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 4244cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 4254cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 4264cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 4274cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 42820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXThis() { 4294cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 4304cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 431f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 4324cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 433987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 434987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 435987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 436987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 437987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 438987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 439987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 440987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier '(' expression-list[opt] ')' [C++ 5.2.3] 441987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typename-specifier '(' expression-list[opt] ')' [TODO] 442987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 44320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult 44420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 445987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 4465ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor TypeTy *TypeRep = Actions.ActOnTypeName(CurScope, DeclaratorInfo).get(); 447987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 448987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(Tok.is(tok::l_paren) && "Expected '('!"); 449987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation LParenLoc = ConsumeParen(); 450987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 451a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector Exprs(Actions); 452987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis CommaLocsTy CommaLocs; 453987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 454987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (Tok.isNot(tok::r_paren)) { 455987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (ParseExpressionList(Exprs, CommaLocs)) { 456987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SkipUntil(tok::r_paren); 45720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 458987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 459987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 460987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 461987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // Match the ')'. 462987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 463987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 464987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 465987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis "Unexpected number of commas!"); 466f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXTypeConstructExpr(DS.getSourceRange(), TypeRep, 467f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move_arg(Exprs), 468f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl &CommaLocs[0], RParenLoc); 469987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 470987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 47171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// ParseCXXCondition - if/switch/while/for condition expression. 47271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 47371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 47471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 47571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 47671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 47771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 47871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 4792f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian RedlParser::OwningExprResult Parser::ParseCXXCondition() { 480a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis if (!isCXXConditionDeclaration()) 48171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return ParseExpression(); // expression 48271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 48371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation StartLoc = Tok.getLocation(); 48471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 48571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 48671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclSpec DS; 48771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 48871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 48971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 49071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 49171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 49271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 49371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 49471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 495ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 496ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl OwningExprResult AsmLabel(ParseSimpleAsm(&Loc)); 4970e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 49871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 4992f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 50071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 501effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 502ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 50371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 50471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 50571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 506ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Tok.is(tok::kw___attribute)) { 507ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 508ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl AttributeList *AttrList = ParseAttributes(&Loc); 509ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.AddAttributes(AttrList, Loc); 510ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 51171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 51271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 51371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.isNot(tok::equal)) 5142f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(Diag(Tok, diag::err_expected_equal_after_declarator)); 51571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation EqualLoc = ConsumeToken(); 5162f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult AssignExpr(ParseAssignmentExpression()); 5170e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AssignExpr.isInvalid()) 5182f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 5192f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl 520f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXConditionDeclarationExpr(CurScope, StartLoc, 521f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl DeclaratorInfo,EqualLoc, 522f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move(AssignExpr)); 52371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 52471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 525987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 526987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 527987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 528987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 529987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 530eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 531987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 532987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 533987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 534987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 535987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 536987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 537987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 538987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 539987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 540987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 541987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 542987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 543987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 544987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 545987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 546987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 547987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 548987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 549987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 550987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 551987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 552987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 553987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 554987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 555987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 556987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 55755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 55855a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 55955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner assert(0 && "Annotation token should already be formed!"); 560987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis default: 561987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(0 && "Not a simple-type-specifier token!"); 562987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis abort(); 56355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 564987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 565b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 5661a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, 567eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Tok.getAnnotationValue()); 568987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 569987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 570987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 571987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 572987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 573987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec); 574987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 575987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 576987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec); 577987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 578987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 579987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec); 580987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 581987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 582987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec); 583987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 584987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 585987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec); 586987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 587987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 588987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec); 589987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 590987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 591987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec); 592987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 593987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 594987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec); 595987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 596987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 597987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec); 598987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 599987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 600987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec); 601987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 602987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 603987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec); 604987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 605987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 606987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 607987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 608987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 609987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.Finish(Diags, PP.getSourceManager(), getLang()); 610987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 611987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 612b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 613eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 614eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 615eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 616987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 617987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.Finish(Diags, PP.getSourceManager(), getLang()); 618987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 6191cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6202f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 6212f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 6222f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 6232f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 6242f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 6252f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 6262f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 6272f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 6282f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 6292f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 6302f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 6312f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 6322f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DS.SetRangeStart(Tok.getLocation()); 6332f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor const char *PrevSpec = 0; 6342f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor int isInvalid = 0; 6352f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 6362f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse one or more of the type specifiers. 6377a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner if (!ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec)) { 6381ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_operator_missing_type_specifier); 6392f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return true; 6402f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor } 6417a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner 642b8006e50bf378ddbab9601c1fa07f151ac538ff3Ted Kremenek while (ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec)) ; 6432f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 6442f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 6452f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 6462f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 64743c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor/// TryParseOperatorFunctionId - Attempts to parse a C++ overloaded 6481cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator name (C++ [over.oper]). If successful, returns the 6491cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// predefined identifier that corresponds to that overloaded 6501cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator. Otherwise, returns NULL and does not consume any tokens. 6511cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 6521cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator-function-id: [C++ 13.5] 6531cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 'operator' operator 6541cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 6551cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator: one of 6561cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// new delete new[] delete[] 6571cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// + - * / % ^ & | ~ 6581cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ! = < > += -= *= /= %= 6591cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ^= &= |= << >> >>= <<= == != 6601cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// <= >= && || ++ -- , ->* -> 6611cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// () [] 662ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlOverloadedOperatorKind 663ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TryParseOperatorFunctionId(SourceLocation *EndLoc) { 6649057a81efaf15c543aab1c5c8488e8a9ed2c0ff4Argyrios Kyrtzidis assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 665ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 6661cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6671cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor OverloadedOperatorKind Op = OO_None; 6681cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor switch (NextToken().getKind()) { 6691cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_new: 6701cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 671ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'new' 6721cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 6731cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 674ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 6751cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 6761cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_New; 6771cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 6781cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_New; 6791cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 680ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 681ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 682e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 6831cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6841cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_delete: 6851cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 686ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'delete' 6871cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 6881cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 689ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 6901cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 6911cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_Delete; 6921cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 6931cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Delete; 6941cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 695ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 696ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 697e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 6981cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 69902bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 7001cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::Token: Op = OO_##Name; break; 70102bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 7021cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor#include "clang/Basic/OperatorKinds.def" 7031cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7041cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_paren: 7051cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 7061cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeParen(); // '(' 707ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7081cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_paren, diag::err_expected_rparen); // ')' 709ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 710ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 711e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Call; 7121cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7131cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_square: 7141cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 7151cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 716ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7171cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 718ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 719ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 720e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Subscript; 7211cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7221cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor default: 723e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_None; 7241cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 72543c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor 72643c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor ConsumeToken(); // 'operator' 727ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeAnyToken(); // the operator itself 728ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 729ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 730e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7311cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor} 7322f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7332f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseConversionFunctionId - Parse a C++ conversion-function-id, 7342f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// which expresses the name of a user-defined conversion operator 7352f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// (C++ [class.conv.fct]p1). Returns the type that this operator is 7362f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// specifying a conversion for, or NULL if there was an error. 7372f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7382f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-function-id: [C++ 12.3.2] 7392f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// operator conversion-type-id 7402f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7412f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-type-id: 7422f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq conversion-declarator[opt] 7432f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7442f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-declarator: 7452f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ptr-operator conversion-declarator[opt] 746ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TypeTy *Parser::ParseConversionFunctionId(SourceLocation *EndLoc) { 7472f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 7482f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor ConsumeToken(); // 'operator' 7492f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7502f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the type-specifier-seq. 7512f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DeclSpec DS; 7522f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) 7532f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 7542f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7552f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 7562f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // ptr-operators. 7572f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 7584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 759ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 760ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = D.getSourceRange().getEnd(); 7612f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7622f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Finish up the type. 7632f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Action::TypeResult Result = Actions.ActOnTypeName(CurScope, D); 7645ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor if (Result.isInvalid()) 7652f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 7662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor else 7675ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor return Result.get(); 7682f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 7694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 7704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 7714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 77259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 77359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 77459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 77559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 7764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 7774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 7784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 7794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 7804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 7814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 7824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 7834c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 7844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 7854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 786cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 787cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 788cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 789cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 790cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 791cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 792cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 7934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 7944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 7954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// [C++0x] braced-init-list [TODO] 7964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 79759232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 79859232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 79959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 80059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 8014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 8034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 8044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 805a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector PlacementArgs(Actions); 8064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 8074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ParenTypeId; 809cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclSpec DS; 810cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 8114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 8124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 8134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = ConsumeParen(); 814cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 815cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 81620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 817cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementRParen = MatchRHSPunctuation(tok::r_paren, PlacementLParen); 820cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 821cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 82220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 823cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 825cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 8264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 8274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 8284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 8294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 8304c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 8314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 832cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SourceLocation LParen = ConsumeParen(); 833cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 834ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 835cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 836cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl MatchRHSPunctuation(tok::r_paren, LParen); 8374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 8384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 839cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 840cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 841ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 842ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 843cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 844cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 845ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 8464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 8474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 850cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 851cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 852cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 853cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 854ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 855ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 856cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 857cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 858ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 8594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 8604c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 861cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (DeclaratorInfo.getInvalidType()) { 862cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 86320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 864cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 866a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector ConstructorArgs(Actions); 8674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 8684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 8704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorLParen = ConsumeParen(); 8714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 8724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 873cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 874cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 87520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 876cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorRParen = MatchRHSPunctuation(tok::r_paren, ConstructorLParen); 879cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 880cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 88120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 882cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8834c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 885f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 886f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(PlacementArgs), PlacementRParen, 887f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl ParenTypeId, DeclaratorInfo, ConstructorLParen, 888f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(ConstructorArgs), ConstructorRParen); 8894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 8904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 8924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 8934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 8944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 8954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 8964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 8974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 89859232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 8994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 9004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 9014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 9024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LLoc = ConsumeBracket(); 9032f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Size(first ? ParseExpression() 9042f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 9050e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 9064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 9074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SkipUntil(tok::r_square); 9084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 9094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 9114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 912ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation RLoc = MatchRHSPunctuation(tok::r_square, LLoc); 9134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl D.AddTypeInfo(DeclaratorChunk::getArray(0, /*static=*/false, /*star=*/false, 914ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Size.release(), LLoc), 915ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl RLoc); 9164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 917ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (RLoc.isInvalid()) 9184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 9194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 9234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 9244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 9264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 9274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 9284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 9304c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 9314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 932cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redlbool Parser::ParseExpressionListOrTypeId(ExprListTy &PlacementArgs, 93359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 9344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 9354c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 936cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 937ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 938cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 939cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl return D.getInvalidType(); 9404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 9434c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 9444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 9454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 9464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 9494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 9504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 95159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 95259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 95359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 95459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 95559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 9564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 9574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 9584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 95959232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 96059232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 96159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 96259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 9634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 9654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 9664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_square)) { 9674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 9684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LHS = ConsumeBracket(); 9694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation RHS = MatchRHSPunctuation(tok::r_square, LHS); 9704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (RHS.isInvalid()) 97120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 9724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9734c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9742f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Operand(ParseCastExpression(false)); 9750e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 97620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Operand); 9774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 978f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, move(Operand)); 9794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 98064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 98164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redlstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) 98264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 98364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 98464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl default: assert(false && "Not a known unary type trait."); 98564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 98664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 98764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 98864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 98964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 99064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_constructor: return UTT_HasTrivialConstructor; 99164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 99264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 99364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 99464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 99564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 99664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 99764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 99864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 99964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 100064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 100164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 100264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 100364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 100464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 100564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 100664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 100764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 100864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 100964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 101064b45f7e0d3167f040841ac2920aead7f080730dSebastian RedlParser::OwningExprResult Parser::ParseUnaryTypeTrait() 101164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 101264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 101364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 101464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 101564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation LParen = Tok.getLocation(); 101664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 101764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 101864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 101964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 102064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 102164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 1022809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 102364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 102464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 102564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 1026809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 1027809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 1028809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 1029809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, LParen, Ty.get(), RParen); 103064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 1031