ParseExprCXX.cpp revision 2dd078ae50ff7be1fb25ebeedde45e9ab691a4f0
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 192dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \brief Parse global scope or nested-name-specifier if present. 202dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 212dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// Parses a C++ global scope specifier ('::') or nested-name-specifier (which 222dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// may be preceded by '::'). Note that this routine will not parse ::new or 232dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// ::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 '::' 322dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier 'template'[opt] simple-template-id '::' 332dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 342dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 352dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \param SS the scope specifier that will be set to the parsed 362dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier (or empty) 372dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 382dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \param ObjectType if this nested-name-specifier is being parsed following 392dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the "." or "->" of a member access expression, this parameter provides the 402dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// type of the object whose members are being accessed. 41eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 422dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \param EnteringContext whether we will be entering into the context of 432dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the nested-name-specifier after parsing it. 442dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 452dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \returns true if a scope specifier was parsed. 46495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS, 472dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor Action::TypeTy *ObjectType, 48495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor bool EnteringContext) { 494bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 507452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 51495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor 52eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 533507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep(Tok.getAnnotationValue()); 54eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setRange(Tok.getAnnotationRange()); 55eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 564bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis return true; 57eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 58e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 5939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 6039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 615b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 625b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 635b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 645b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 655b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 6655a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 6755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 68357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SourceLocation CCLoc = ConsumeToken(); 69357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SS.setBeginLoc(CCLoc); 703507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep(Actions.ActOnCXXGlobalScopeSpecifier(CurScope, CCLoc)); 71357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SS.setEndLoc(CCLoc); 7239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 73eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 74eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 7539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 762dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (HasScopeSpecifier) { 772dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // C++ [basic.lookup.classref]p5: 782dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If the qualified-id has the form 792dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // ::class-name-or-namespace-name::... 802dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // the class-name-or-namespace-name is looked up in global scope as a 812dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // class-name or namespace-name. 822dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // 832dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // To implement this, we clear out the object type as soon as we've 842dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // seen a leading '::' or part of a nested-name-specifier. 852dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType = 0; 862dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor } 872dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor 8839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 8977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // nested-name-specifier 'template'[opt] simple-template-id '::' 9077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 9177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // Parse the optional 'template' keyword, then make sure we have 9277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // 'identifier <' after it. 9377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.is(tok::kw_template)) { 942dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If we don't have a scope specifier or an object type, this isn't a 95eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // nested-name-specifier, since they aren't allowed to start with 96eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // 'template'. 972dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (!HasScopeSpecifier && !ObjectType) 98eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman break; 99eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman 10077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner SourceLocation TemplateKWLoc = ConsumeToken(); 10177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 10277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.isNot(tok::identifier)) { 10377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner Diag(Tok.getLocation(), 10477cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner diag::err_id_after_template_in_nested_name_spec) 10577cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner << SourceRange(TemplateKWLoc); 10677cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 10777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 10877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 10977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (NextToken().isNot(tok::less)) { 11077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner Diag(NextToken().getLocation(), 11177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner diag::err_less_after_template_name_in_nested_name_spec) 11277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner << Tok.getIdentifierInfo()->getName() 11377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner << SourceRange(TemplateKWLoc, Tok.getLocation()); 11477cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 11577cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 11677cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 11777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner TemplateTy Template 11877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner = Actions.ActOnDependentTemplateName(TemplateKWLoc, 11977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner *Tok.getIdentifierInfo(), 1202dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor Tok.getLocation(), SS, 1212dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType); 122eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman if (!Template) 123eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman break; 124c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner if (AnnotateTemplateIdToken(Template, TNK_Dependent_template_name, 125c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner &SS, TemplateKWLoc, false)) 126c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner break; 127c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner 12877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner continue; 12977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 13077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 13139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 13239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We have 13339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 13439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // simple-template-id '::' 13539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 13639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // So we need to check whether the simple-template-id is of the 137c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // right kind (it should name a type or be dependent), and then 138c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // convert it into a type within the nested-name-specifier. 13939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor TemplateIdAnnotation *TemplateId 14039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 1414bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 142c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template || 143c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor TemplateId->Kind == TNK_Dependent_template_name) { 14431a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor AnnotateTemplateIdTokenAsType(&SS); 14539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 14639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::annot_typename) && 14739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor "AnnotateTemplateIdTokenAsType isn't working"); 14839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Token TypeToken = Tok; 14939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor ConsumeToken(); 15039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 15139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 15239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 15339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (!HasScopeSpecifier) { 15439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setBeginLoc(TypeToken.getLocation()); 15539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 15639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 15731a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor 15831a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor if (TypeToken.getAnnotationValue()) 15931a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor SS.setScopeRep( 16031a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, 16131a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor TypeToken.getAnnotationValue(), 16231a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor TypeToken.getAnnotationRange(), 16331a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor CCLoc)); 16431a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor else 16531a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor SS.setScopeRep(0); 16639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setEndLoc(CCLoc); 16739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor continue; 16867b9e831943300ce54e564e601971828ce4def15Chris Lattner } 16967b9e831943300ce54e564e601971828ce4def15Chris Lattner 17067b9e831943300ce54e564e601971828ce4def15Chris Lattner assert(false && "FIXME: Only type template names supported here"); 17139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 17239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 1735c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1745c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // The rest of the nested-name-specifier possibilities start with 1755c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // tok::identifier. 1765c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Tok.isNot(tok::identifier)) 1775c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner break; 1785c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1795c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner IdentifierInfo &II = *Tok.getIdentifierInfo(); 1805c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1815c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 1825c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '::' 1835c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // namespace-name '::' 1845c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier identifier '::' 1855c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Token Next = NextToken(); 1865c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::coloncolon)) { 1875c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have an identifier followed by a '::'. Lookup this name 1885c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // as the name in a nested-name-specifier. 1895c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation IdLoc = ConsumeToken(); 1905c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 1915c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation CCLoc = ConsumeToken(); 1925c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1935c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (!HasScopeSpecifier) { 1945c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SS.setBeginLoc(IdLoc); 1955c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner HasScopeSpecifier = true; 1965c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 1975c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1985c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (SS.isInvalid()) 1995c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 2005c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 2015c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SS.setScopeRep( 202495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, IdLoc, CCLoc, II, 2032dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType, EnteringContext)); 2045c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SS.setEndLoc(CCLoc); 2055c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 2065c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 2075c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 2085c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 2095c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '<' 2105c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::less)) { 2115c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner TemplateTy Template; 2122dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (TemplateNameKind TNK = Actions.isTemplateName(CurScope, II, 2132dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor Tok.getLocation(), 2142dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor &SS, 2152dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType, 216495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor EnteringContext, 217495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor Template)) { 2185c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have found a template name, so annotate this this token 2195c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // with a template-id annotation. We do not permit the 2205c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // template-id to be translated into a type annotation, 2215c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // because some clients (e.g., the parsing of class template 2225c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // specializations) still want to see the original template-id 2235c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // token. 224c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner if (AnnotateTemplateIdToken(Template, TNK, &SS, SourceLocation(), 225c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner false)) 226c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner break; 2275c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 2285c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 2295c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 2305c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 23139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 23239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 23339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 23439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 23539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 23639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor return HasScopeSpecifier; 237eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 238eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 239eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 240eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 241eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 242eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 243eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 244eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 245eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id: 246eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// identifier 247eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// operator-function-id 248eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// conversion-function-id [TODO] 249eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '~' class-name [TODO] 250edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor/// template-id 251eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 252eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 253eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 254eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 255eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 256edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor/// '::' template-id 257eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 258eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 259eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 260eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 261eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 262eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 263eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 264eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 265eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 266eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 267eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 268eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 269eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 270eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 271eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 272eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 273eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 274eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 275eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 276eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 277eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 278eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 279eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 280eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 281eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 282eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 283eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 284eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 285eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 286eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 287eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 288eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 289ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 290ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 291ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 292ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 293ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 294ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian RedlParser::OwningExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 295eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 296eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 297eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 298eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 299eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 3002dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ParseOptionalCXXScopeSpecifier(SS, /*ObjectType=*/0, false); 301eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 302eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // unqualified-id: 303eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // identifier 304eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // operator-function-id 3052def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // conversion-function-id 306eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '~' class-name [TODO] 307edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor // template-id 308eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 309eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis switch (Tok.getKind()) { 310eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis default: 31120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(Tok, diag::err_expected_unqualified_id)); 312eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 313eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::identifier: { 314eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // Consume the identifier so that we can see if it is followed by a '('. 315eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis IdentifierInfo &II = *Tok.getIdentifierInfo(); 316eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation L = ConsumeToken(); 317ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl return Actions.ActOnIdentifierExpr(CurScope, L, II, Tok.is(tok::l_paren), 318ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl &SS, isAddressOfOperand); 319eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 320eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 321eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::kw_operator: { 322eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation OperatorLoc = Tok.getLocation(); 3237452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (OverloadedOperatorKind Op = TryParseOperatorFunctionId()) 324cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXOperatorFunctionIdExpr( 325ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl CurScope, OperatorLoc, Op, Tok.is(tok::l_paren), SS, 326ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 3277452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (TypeTy *Type = ParseConversionFunctionId()) 328cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXConversionFunctionExpr(CurScope, OperatorLoc, Type, 329ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl Tok.is(tok::l_paren), SS, 330ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 33120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 3322def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // We already complained about a bad conversion-function-id, 3332def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // above. 33420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 335eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 336eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 337edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor case tok::annot_template_id: { 338edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateIdAnnotation *TemplateId 339edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 340edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor assert((TemplateId->Kind == TNK_Function_template || 341edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateId->Kind == TNK_Dependent_template_name) && 342edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor "A template type name is not an ID expression"); 343edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor 344edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, 345edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateId->getTemplateArgs(), 346edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateId->getTemplateArgIsType(), 347edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateId->NumArgs); 348edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor 349edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor OwningExprResult Result 350edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor = Actions.ActOnTemplateIdExpr(TemplateTy::make(TemplateId->Template), 351edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateId->TemplateNameLoc, 352edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateId->LAngleLoc, 353edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateArgsPtr, 354edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateId->getTemplateArgLocations(), 355edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor TemplateId->RAngleLoc); 356edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor ConsumeToken(); // Consume the template-id token 357edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor return move(Result); 358edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor } 359edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor 360eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } // switch. 361eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 362eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis assert(0 && "The switch was supposed to take care everything."); 363eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 364eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 3685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 3695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 3715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 3725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 37420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXCasts() { 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 3765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 3775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 3795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown C++ cast!"); abort(); 3805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 3815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 3825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 3835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 3845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 3875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 3885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 39020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 3915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 392809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult CastTy = ParseTypeName(); 3935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 3945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3951ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 39620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 3975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LParenLoc = Tok.getLocation(), RParenLoc; 3995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 40021e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, CastName)) 40121e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 40321e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis OwningExprResult Result = ParseExpression(); 40421e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis 40521e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 40621e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (Result.isInvalid()) 40721e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis SkipUntil(tok::r_paren); 40821e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis 40921e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 41021e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 41121e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis else 41221e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 4135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 414809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (!Result.isInvalid() && !CastTy.isInvalid()) 41549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 416f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LAngleBracketLoc, CastTy.get(), 417809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 418f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move(Result), RParenLoc); 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 42020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 423c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 424c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 425c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 426c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 427c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 428c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 42920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXTypeid() { 430c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 431c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 432c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 433c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation LParenLoc = Tok.getLocation(); 434c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation RParenLoc; 435c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 436c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 437c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, 438c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl "typeid")) 43920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 440c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 44115faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl OwningExprResult Result(Actions); 442c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 443c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 444809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 445c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 446c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 447c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 448c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 449809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 45020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 451c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 452c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 453809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor Ty.get(), RParenLoc); 454c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 455e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // C++0x [expr.typeid]p3: 456e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // When typeid is applied to an expression other than an lvalue of a 457e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // polymorphic class type [...] The expression is an unevaluated 458e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // operand (Clause 5). 459e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // 460e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // Note that we can't tell whether the expression is an lvalue of a 461e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // polymorphic class type until after we've parsed the expression, so 462ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // we the expression is potentially potentially evaluated. 463ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor EnterExpressionEvaluationContext Unevaluated(Actions, 464ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor Action::PotentiallyPotentiallyEvaluated); 465c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 466c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 467c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 4680e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 469c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SkipUntil(tok::r_paren); 470c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 471c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 472c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 473c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 474effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 475c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 476c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 477c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 47820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 479c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 480c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 4825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 4855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 48620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXBoolLiteral() { 4875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 488f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 4895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 49050dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 49150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 49250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 49350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 49450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 49520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseThrowExpression() { 49650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 49750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 49820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 4992a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 5002a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 5012a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 5022a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 5032a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 5042a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 5052a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 5062a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 5072a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 5082a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 509f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, ExprArg(Actions)); 51050dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 5112a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 5122f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Expr(ParseAssignmentExpression()); 51320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl if (Expr.isInvalid()) return move(Expr); 514f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, move(Expr)); 5152a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 51650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 5174cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5184cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 5194cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 5204cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 5214cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 5224cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 52320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXThis() { 5244cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 5254cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 526f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 5274cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 528987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 529987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 530987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 531987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 532987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 533987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 534987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 535987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier '(' expression-list[opt] ')' [C++ 5.2.3] 536987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typename-specifier '(' expression-list[opt] ')' [TODO] 537987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 53820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult 53920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 540987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 5415ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor TypeTy *TypeRep = Actions.ActOnTypeName(CurScope, DeclaratorInfo).get(); 542987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 543987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(Tok.is(tok::l_paren) && "Expected '('!"); 544987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation LParenLoc = ConsumeParen(); 545987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 546a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector Exprs(Actions); 547987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis CommaLocsTy CommaLocs; 548987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 549987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (Tok.isNot(tok::r_paren)) { 550987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (ParseExpressionList(Exprs, CommaLocs)) { 551987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SkipUntil(tok::r_paren); 55220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 553987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 554987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 555987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 556987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // Match the ')'. 557987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 558987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 559ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl // TypeRep could be null, if it references an invalid typedef. 560ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl if (!TypeRep) 561ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl return ExprError(); 562ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl 563987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 564987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis "Unexpected number of commas!"); 565f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXTypeConstructExpr(DS.getSourceRange(), TypeRep, 566f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move_arg(Exprs), 567beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CommaLocs.data(), RParenLoc); 568987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 569987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 57071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// ParseCXXCondition - if/switch/while/for condition expression. 57171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 57271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 57371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 57471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 57571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 57671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 57771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 5782f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian RedlParser::OwningExprResult Parser::ParseCXXCondition() { 579a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis if (!isCXXConditionDeclaration()) 58071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return ParseExpression(); // expression 58171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 58271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation StartLoc = Tok.getLocation(); 58371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 58471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 58571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclSpec DS; 58671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 58771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 58871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 58971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 59071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 59171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 59271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 59371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 594ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 595ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl OwningExprResult AsmLabel(ParseSimpleAsm(&Loc)); 5960e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 59771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 5982f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 59971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 600effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 601ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 60271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 60371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 60471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 605ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Tok.is(tok::kw___attribute)) { 606ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 607ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl AttributeList *AttrList = ParseAttributes(&Loc); 608ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.AddAttributes(AttrList, Loc); 609ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 61071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 61171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 61271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.isNot(tok::equal)) 6132f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(Diag(Tok, diag::err_expected_equal_after_declarator)); 61471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation EqualLoc = ConsumeToken(); 6152f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult AssignExpr(ParseAssignmentExpression()); 6160e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AssignExpr.isInvalid()) 6172f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 6182f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl 619f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXConditionDeclarationExpr(CurScope, StartLoc, 620f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl DeclaratorInfo,EqualLoc, 621f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move(AssignExpr)); 62271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 62371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 624987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 625987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 626987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 627987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 628987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 629eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 630987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 631987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 632987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 633987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 634987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 635987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 636987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 637987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 638987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 639987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 640987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 641987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 642987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 643987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 644987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 645987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 646987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 647987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 648987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 649987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 650987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 651987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 652987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 653fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 654987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 655987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 656987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 65755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 65855a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 65955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner assert(0 && "Annotation token should already be formed!"); 660987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis default: 661987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(0 && "Not a simple-type-specifier token!"); 662987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis abort(); 66355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 664987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 665b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 666fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, DiagID, 667eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Tok.getAnnotationValue()); 668987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 669987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 670987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 671987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 672987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 673fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec, DiagID); 674987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 675987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 676fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec, DiagID); 677987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 678987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 679fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec, DiagID); 680987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 681987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 682fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec, DiagID); 683987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 684987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 685fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec, DiagID); 686987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 687987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 688fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec, DiagID); 689987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 690987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 691fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec, DiagID); 692987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 693987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 694fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec, DiagID); 695987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 696987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 697fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec, DiagID); 698987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 699987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 700fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec, DiagID); 701987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 702f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char16_t: 703fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char16, Loc, PrevSpec, DiagID); 704f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 705f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char32_t: 706fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char32, Loc, PrevSpec, DiagID); 707f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 708987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 709fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec, DiagID); 710987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 711987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 712987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 713987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 714987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 7159b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 716987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 717987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 718b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 719eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 720eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 721eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 722987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 7239b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 724987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 7251cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7262f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 7272f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 7282f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 7292f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 7302f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 7312f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 7322f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 7332f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7342f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 7352f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 7362f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7372f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 7382f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DS.SetRangeStart(Tok.getLocation()); 7392f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor const char *PrevSpec = 0; 740fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 741fec54013fcd0eb72642741584ca04c1bc292bef8John McCall bool isInvalid = 0; 7422f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7432f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse one or more of the type specifiers. 744fec54013fcd0eb72642741584ca04c1bc292bef8John McCall if (!ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec, DiagID)) { 7451ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_operator_missing_type_specifier); 7462f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return true; 7472f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor } 7487a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner 749fec54013fcd0eb72642741584ca04c1bc292bef8John McCall while (ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec, DiagID)) ; 7502f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7512f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 7522f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 7532f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 75443c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor/// TryParseOperatorFunctionId - Attempts to parse a C++ overloaded 7551cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator name (C++ [over.oper]). If successful, returns the 7561cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// predefined identifier that corresponds to that overloaded 7571cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator. Otherwise, returns NULL and does not consume any tokens. 7581cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 7591cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator-function-id: [C++ 13.5] 7601cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 'operator' operator 7611cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 7621cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator: one of 7631cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// new delete new[] delete[] 7641cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// + - * / % ^ & | ~ 7651cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ! = < > += -= *= /= %= 7661cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ^= &= |= << >> >>= <<= == != 7671cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// <= >= && || ++ -- , ->* -> 7681cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// () [] 769ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlOverloadedOperatorKind 770ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TryParseOperatorFunctionId(SourceLocation *EndLoc) { 7719057a81efaf15c543aab1c5c8488e8a9ed2c0ff4Argyrios Kyrtzidis assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 772ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 7731cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7741cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor OverloadedOperatorKind Op = OO_None; 7751cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor switch (NextToken().getKind()) { 7761cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_new: 7771cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 778ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'new' 7791cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 7801cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 781ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7821cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 7831cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_New; 7841cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 7851cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_New; 7861cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 787ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 788ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 789e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7901cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7911cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_delete: 7921cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 793ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'delete' 7941cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 7951cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 796ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7971cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 7981cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_Delete; 7991cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 8001cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Delete; 8011cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 802ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 803ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 804e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 8051cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 80602bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 8071cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::Token: Op = OO_##Name; break; 80802bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 8091cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor#include "clang/Basic/OperatorKinds.def" 8101cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 8111cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_paren: 8121cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 8131cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeParen(); // '(' 814ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 8151cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_paren, diag::err_expected_rparen); // ')' 816ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 817ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 818e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Call; 8191cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 8201cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_square: 8211cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 8221cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 823ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 8241cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 825ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 826ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 827e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Subscript; 8281cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 8291cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor default: 830e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_None; 8311cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 83243c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor 83343c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor ConsumeToken(); // 'operator' 834ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeAnyToken(); // the operator itself 835ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 836ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 837e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 8381cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor} 8392f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 8402f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseConversionFunctionId - Parse a C++ conversion-function-id, 8412f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// which expresses the name of a user-defined conversion operator 8422f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// (C++ [class.conv.fct]p1). Returns the type that this operator is 8432f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// specifying a conversion for, or NULL if there was an error. 8442f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 8452f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-function-id: [C++ 12.3.2] 8462f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// operator conversion-type-id 8472f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 8482f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-type-id: 8492f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq conversion-declarator[opt] 8502f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 8512f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-declarator: 8522f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ptr-operator conversion-declarator[opt] 853ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TypeTy *Parser::ParseConversionFunctionId(SourceLocation *EndLoc) { 8542f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 8552f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor ConsumeToken(); // 'operator' 8562f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 8572f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the type-specifier-seq. 8582f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DeclSpec DS; 8592f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) 8602f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 8612f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 8622f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 8632f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // ptr-operators. 8642f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 8654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 866ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 867ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = D.getSourceRange().getEnd(); 8682f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 8692f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Finish up the type. 8702f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Action::TypeResult Result = Actions.ActOnTypeName(CurScope, D); 8715ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor if (Result.isInvalid()) 8722f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 8732f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor else 8745ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor return Result.get(); 8752f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 8764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 8784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 87959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 88059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 88159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 88259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 8834c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 8844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 8854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 8864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 8874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 8884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 8894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 8904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 8914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 8924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 893cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 894cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 895cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 896cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 897cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 898cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 899cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 9004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 9014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 9024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// [C++0x] braced-init-list [TODO] 9034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 90459232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 90559232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 90659232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 90759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 9084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 9104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 9114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 912a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector PlacementArgs(Actions); 9134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 9144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ParenTypeId; 916cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclSpec DS; 917cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 9184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 9194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 9204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = ConsumeParen(); 921cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 922cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 92320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 924cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 9254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementRParen = MatchRHSPunctuation(tok::r_paren, PlacementLParen); 927cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 928cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 92920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 930cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 9314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 932cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 9334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 9344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 9354c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 9364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 9374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 9384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 939cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SourceLocation LParen = ConsumeParen(); 940cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 941ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 942cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 943cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl MatchRHSPunctuation(tok::r_paren, LParen); 9444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 9454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 946cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 947cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 948ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 949ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 950cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 951cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 952ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 9534c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 9544c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9554c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 957cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 958cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 959cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 960cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 961ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 962ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 963cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 964cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 965ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 9664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 9674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 968eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 969cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 97020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 971cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 9724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 973a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector ConstructorArgs(Actions); 9744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 9754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 9774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorLParen = ConsumeParen(); 9784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 9794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 980cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 981cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 98220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 983cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 9844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorRParen = MatchRHSPunctuation(tok::r_paren, ConstructorLParen); 986cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 987cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 98820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 989cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 9904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 992f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 993f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(PlacementArgs), PlacementRParen, 994f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl ParenTypeId, DeclaratorInfo, ConstructorLParen, 995f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(ConstructorArgs), ConstructorRParen); 9964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 9994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 10004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 10014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 10024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 10034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 10044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 100559232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 10064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 10074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 10084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 10094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LLoc = ConsumeBracket(); 10102f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Size(first ? ParseExpression() 10112f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 10120e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 10134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 10144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SkipUntil(tok::r_square); 10154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 10164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 10174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 10184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1019ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation RLoc = MatchRHSPunctuation(tok::r_square, LLoc); 10204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl D.AddTypeInfo(DeclaratorChunk::getArray(0, /*static=*/false, /*star=*/false, 10217e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Size.release(), LLoc, RLoc), 1022ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl RLoc); 10234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1024ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (RLoc.isInvalid()) 10254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 10264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 10274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 10284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 10294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 10304c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 10314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 10324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 10334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 10344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 10354c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 10364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 10374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 10384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 1039cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redlbool Parser::ParseExpressionListOrTypeId(ExprListTy &PlacementArgs, 104059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 10414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 10424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 1043cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 1044ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 1045cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 1046eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 10474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 10484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 10494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 10504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 10514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 10524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 10534c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 10544c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 10554c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 10564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 10574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 105859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 105959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 106059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 106159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 106259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 10634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 10644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 10654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 106659232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 106759232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 106859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 106959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 10704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 10714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 10724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 10734c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_square)) { 10744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 10754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LHS = ConsumeBracket(); 10764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation RHS = MatchRHSPunctuation(tok::r_square, LHS); 10774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (RHS.isInvalid()) 107820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 10794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 10804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 10812f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Operand(ParseCastExpression(false)); 10820e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 108320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Operand); 10844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1085f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, move(Operand)); 10864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 108764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 108864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redlstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) 108964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 109064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 109164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl default: assert(false && "Not a known unary type trait."); 109264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 109364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 109464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 109564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 109664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 109764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_constructor: return UTT_HasTrivialConstructor; 109864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 109964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 110064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 110164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 110264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 110364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 110464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 110564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 110664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 110764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 110864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 110964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 111064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 111164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 111264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 111364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 111464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 111564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 111664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 111764b45f7e0d3167f040841ac2920aead7f080730dSebastian RedlParser::OwningExprResult Parser::ParseUnaryTypeTrait() 111864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 111964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 112064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 112164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 112264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation LParen = Tok.getLocation(); 112364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 112464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 112564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 112664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 112764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 112864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 1129809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 113064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 113164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 113264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 1133809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 1134809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 1135809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 1136809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, LParen, Ty.get(), RParen); 113764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 1138f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1139f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 1140f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 1141f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 1142f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::OwningExprResult 1143f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 1144f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis TypeTy *&CastTy, 1145f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation LParenLoc, 1146f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation &RParenLoc) { 1147f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(getLang().CPlusPlus && "Should only be called for C++!"); 1148f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 1149f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 1150f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1151f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis OwningExprResult Result(Actions, true); 1152f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis CastTy = 0; 1153f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1154f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 1155f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1156f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 1157f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 1158f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 1159f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 1160f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1161f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 1162f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 1163f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 1164f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1165f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 1166a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 1167f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // 1168f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // It uses a scheme similar to parsing inline methods. The parenthesized 1169f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // tokens are cached, the context that follows is determined (possibly by 1170f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parsing a cast-expression), and then we re-introduce the cached tokens 1171f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // into the token stream and parse them appropriately. 1172f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1173f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParenParseOption ParseAs; 1174f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis CachedTokens Toks; 1175f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1176f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Store the tokens of the parentheses. We will parse them after we determine 1177f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // the context that follows them. 1178f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (!ConsumeAndStoreUntil(tok::r_paren, tok::unknown, Toks, tok::semi)) { 1179f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We didn't find the ')' we expected. 1180f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1181f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1182f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1183f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1184f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 1185f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = CompoundLiteral; 1186f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } else { 1187f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis bool NotCastExpr; 1188b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // FIXME: Special-case ++ and --: "(S())++;" is not a cast-expression 1189b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman if (Tok.is(tok::l_paren) && NextToken().is(tok::r_paren)) { 1190b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr = true; 1191b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } else { 1192b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // Try parsing the cast-expression that may follow. 1193b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // If it is not a cast-expression, NotCastExpr will be true and no token 1194b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // will be consumed. 1195b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman Result = ParseCastExpression(false/*isUnaryExpression*/, 1196b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman false/*isAddressofOperand*/, 11972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman NotCastExpr, false); 1198b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } 1199f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1200f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // If we parsed a cast-expression, it's really a type-id, otherwise it's 1201f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // an expression. 1202f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = NotCastExpr ? SimpleExpr : CastExpr; 1203f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1204f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1205f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // The current token should go after the cached tokens. 1206f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Toks.push_back(Tok); 1207f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Re-enter the stored parenthesized tokens into the token stream, so we may 1208f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parse them now. 1209f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis PP.EnterTokenStream(Toks.data(), Toks.size(), 1210f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis true/*DisableMacroExpansion*/, false/*OwnsTokens*/); 1211f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Drop the current token and bring the first cached one. It's the same token 1212f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // as when we entered this function. 1213f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ConsumeAnyToken(); 1214f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1215f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs >= CompoundLiteral) { 1216f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis TypeResult Ty = ParseTypeName(); 1217f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1218f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Match the ')'. 1219f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (Tok.is(tok::r_paren)) 1220f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis RParenLoc = ConsumeParen(); 1221f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis else 1222f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1223f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1224f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs == CompoundLiteral) { 1225f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ExprType = CompoundLiteral; 1226f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ParseCompoundLiteralExpression(Ty.get(), LParenLoc, RParenLoc); 1227f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } 1228f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1229f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We parsed '(' type-id ')' and the thing after it wasn't a '{'. 1230f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == CastExpr); 1231f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1232f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (Ty.isInvalid()) 1233f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ExprError(); 1234f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1235f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis CastTy = Ty.get(); 1236f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1237f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Result is what ParseCastExpression returned earlier. 1238f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 12392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Result = Actions.ActOnCastExpr(CurScope, LParenLoc, CastTy, RParenLoc, 12402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman move(Result)); 1241f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 1242f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1243f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1244f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Not a compound literal, and not followed by a cast-expression. 1245f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == SimpleExpr); 1246f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1247f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 1248f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Result = ParseExpression(); 1249f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 1250f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Result = Actions.ActOnParenExpr(LParenLoc, Tok.getLocation(), move(Result)); 1251f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1252f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 1253f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 1254f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SkipUntil(tok::r_paren); 1255f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1256f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1257f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1258f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 1259f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 1260f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis else 1261f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1262f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1263f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 1264f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 1265