ParseExprCXX.cpp revision c8e27cc402043ec86c1698c09e4ee9e415b16207
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ParseExprCXX.cpp - C++ Expression Parsing ------------------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the Expression parsing implementation for C++. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14500d3297d2a21edeac4d46cbcbe21bc2352c2a28Chris Lattner#include "clang/Parse/ParseDiagnostic.h" 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Parser.h" 16987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis#include "clang/Parse/DeclSpec.h" 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 197a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// ParseOptionalCXXScopeSpecifier - Parse global scope or 207a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// nested-name-specifier if present. Returns true if a nested-name-specifier 217a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// was parsed from the token stream. Note that this routine will not parse 227a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner/// ::new or ::delete, it will just leave them in the token stream. 23eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 24eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 25eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 26eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 27eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 28eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 29eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 30eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 31eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 32eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 337a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattnerbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS) { 344bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 357452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 364bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 37eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 383507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep(Tok.getAnnotationValue()); 39eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setRange(Tok.getAnnotationRange()); 40eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 414bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis return true; 42eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 43e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 4439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 4539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 465b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 475b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 485b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 495b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 505b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 5155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 5255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 53357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SourceLocation CCLoc = ConsumeToken(); 54357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SS.setBeginLoc(CCLoc); 553507369940bfb269551bfa1fec812481f60e3552Douglas Gregor SS.setScopeRep(Actions.ActOnCXXGlobalScopeSpecifier(CurScope, CCLoc)); 56357089dea05855e27f80f6f244f9c60fc77cee83Chris Lattner SS.setEndLoc(CCLoc); 5739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 58eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 59eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 6039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 6139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 6277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // nested-name-specifier 'template'[opt] simple-template-id '::' 6377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 6477cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // Parse the optional 'template' keyword, then make sure we have 6577cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // 'identifier <' after it. 6677cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.is(tok::kw_template)) { 6777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner SourceLocation TemplateKWLoc = ConsumeToken(); 6877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 6977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.isNot(tok::identifier)) { 7077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner Diag(Tok.getLocation(), 7177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner diag::err_id_after_template_in_nested_name_spec) 7277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner << SourceRange(TemplateKWLoc); 7377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 7477cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 7577cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 7677cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (NextToken().isNot(tok::less)) { 7777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner Diag(NextToken().getLocation(), 7877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner diag::err_less_after_template_name_in_nested_name_spec) 7977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner << Tok.getIdentifierInfo()->getName() 8077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner << SourceRange(TemplateKWLoc, Tok.getLocation()); 8177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 8277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 8377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 8477cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner TemplateTy Template 8577cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner = Actions.ActOnDependentTemplateName(TemplateKWLoc, 8677cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner *Tok.getIdentifierInfo(), 8777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner Tok.getLocation(), SS); 88c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner if (AnnotateTemplateIdToken(Template, TNK_Dependent_template_name, 89c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner &SS, TemplateKWLoc, false)) 90c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner break; 91c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner 9277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner continue; 9377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 9477cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 9539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 9639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We have 9739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 9839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // simple-template-id '::' 9939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 10039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // So we need to check whether the simple-template-id is of the 101c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // right kind (it should name a type or be dependent), and then 102c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // convert it into a type within the nested-name-specifier. 10339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor TemplateIdAnnotation *TemplateId 10439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 1054bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 106c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor if (TemplateId->Kind == TNK_Type_template || 107c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor TemplateId->Kind == TNK_Dependent_template_name) { 10831a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor AnnotateTemplateIdTokenAsType(&SS); 1093f5b61c394f4f205bcb4d316eb2a7a0a68b8af86Douglas Gregor SS.setScopeRep(0); 11039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 11139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::annot_typename) && 11239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor "AnnotateTemplateIdTokenAsType isn't working"); 11339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Token TypeToken = Tok; 11439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor ConsumeToken(); 11539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 11639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 11739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 11839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (!HasScopeSpecifier) { 11939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setBeginLoc(TypeToken.getLocation()); 12039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 12139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 12231a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor 12331a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor if (TypeToken.getAnnotationValue()) 12431a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor SS.setScopeRep( 12531a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, 12631a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor TypeToken.getAnnotationValue(), 12731a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor TypeToken.getAnnotationRange(), 12831a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor CCLoc)); 12931a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor else 13031a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor SS.setScopeRep(0); 13139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SS.setEndLoc(CCLoc); 13239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor continue; 13367b9e831943300ce54e564e601971828ce4def15Chris Lattner } 13467b9e831943300ce54e564e601971828ce4def15Chris Lattner 13567b9e831943300ce54e564e601971828ce4def15Chris Lattner assert(false && "FIXME: Only type template names supported here"); 13639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 13739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 1385c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1395c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // The rest of the nested-name-specifier possibilities start with 1405c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // tok::identifier. 1415c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Tok.isNot(tok::identifier)) 1425c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner break; 1435c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1445c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner IdentifierInfo &II = *Tok.getIdentifierInfo(); 1455c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1465c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 1475c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '::' 1485c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // namespace-name '::' 1495c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier identifier '::' 1505c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Token Next = NextToken(); 1515c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::coloncolon)) { 1525c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have an identifier followed by a '::'. Lookup this name 1535c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // as the name in a nested-name-specifier. 1545c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation IdLoc = ConsumeToken(); 1555c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 1565c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation CCLoc = ConsumeToken(); 1575c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1585c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (!HasScopeSpecifier) { 1595c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SS.setBeginLoc(IdLoc); 1605c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner HasScopeSpecifier = true; 1615c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 1625c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1635c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (SS.isInvalid()) 1645c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 1655c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1665c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SS.setScopeRep( 1675c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, IdLoc, CCLoc, II)); 1685c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SS.setEndLoc(CCLoc); 1695c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 1705c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 1715c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 1725c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 1735c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '<' 1745c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::less)) { 1755c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner TemplateTy Template; 1765c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (TemplateNameKind TNK = Actions.isTemplateName(II, CurScope, 1775c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Template, &SS)) { 1785c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have found a template name, so annotate this this token 1795c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // with a template-id annotation. We do not permit the 1805c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // template-id to be translated into a type annotation, 1815c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // because some clients (e.g., the parsing of class template 1825c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // specializations) still want to see the original template-id 1835c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // token. 184c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner if (AnnotateTemplateIdToken(Template, TNK, &SS, SourceLocation(), 185c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner false)) 186c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner break; 1875c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 1885c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 1895c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 1905c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 19139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 19239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 19339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 19439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 19539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 19639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor return HasScopeSpecifier; 197eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 198eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 199eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 200eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 201eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 202eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 203eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 204eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 205eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id: 206eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// identifier 207eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// operator-function-id 208eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// conversion-function-id [TODO] 209eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '~' class-name [TODO] 210eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// template-id [TODO] 211eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 212eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 213eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 214eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 215eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 216eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' template-id [TODO] 217eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 218eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 219eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 220eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 221eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 222eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 223eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 224eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 225eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 226eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 227eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 228eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 229eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 230eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 231eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 232eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 233eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 234eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 235eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 236eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 237eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 238eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 239eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 240eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 241eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 242eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 243eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 244eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 245eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 246eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 247eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 248eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 249ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 250ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 251ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 252ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 253ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 254ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian RedlParser::OwningExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 255eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 256eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 257eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 258eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 259eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 2607a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner ParseOptionalCXXScopeSpecifier(SS); 261eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 262eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // unqualified-id: 263eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // identifier 264eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // operator-function-id 2652def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // conversion-function-id 266eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '~' class-name [TODO] 267eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // template-id [TODO] 268eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 269eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis switch (Tok.getKind()) { 270eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis default: 27120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(Tok, diag::err_expected_unqualified_id)); 272eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 273eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::identifier: { 274eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // Consume the identifier so that we can see if it is followed by a '('. 275eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis IdentifierInfo &II = *Tok.getIdentifierInfo(); 276eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation L = ConsumeToken(); 277ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl return Actions.ActOnIdentifierExpr(CurScope, L, II, Tok.is(tok::l_paren), 278ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl &SS, isAddressOfOperand); 279eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 280eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 281eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::kw_operator: { 282eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation OperatorLoc = Tok.getLocation(); 2837452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (OverloadedOperatorKind Op = TryParseOperatorFunctionId()) 284cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXOperatorFunctionIdExpr( 285ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl CurScope, OperatorLoc, Op, Tok.is(tok::l_paren), SS, 286ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 2877452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner if (TypeTy *Type = ParseConversionFunctionId()) 288cd965b97cfac7b7a53a835810ec2bc2ac7a9dd1aSebastian Redl return Actions.ActOnCXXConversionFunctionExpr(CurScope, OperatorLoc, Type, 289ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl Tok.is(tok::l_paren), SS, 290ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl isAddressOfOperand); 29120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 2922def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // We already complained about a bad conversion-function-id, 2932def48394f6d48bde0dec2b514193c2b533265b5Douglas Gregor // above. 29420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 295eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 296eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 297eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } // switch. 298eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 299eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis assert(0 && "The switch was supposed to take care everything."); 300eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 301eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 31120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXCasts() { 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown C++ cast!"); abort(); 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 32720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 329809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult CastTy = ParseTypeName(); 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3321ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 33320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LParenLoc = Tok.getLocation(), RParenLoc; 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 33721e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, CastName)) 33821e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 34021e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis OwningExprResult Result = ParseExpression(); 34121e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis 34221e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 34321e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (Result.isInvalid()) 34421e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis SkipUntil(tok::r_paren); 34521e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis 34621e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 34721e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 34821e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis else 34921e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 351809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (!Result.isInvalid() && !CastTy.isInvalid()) 35249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 353f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LAngleBracketLoc, CastTy.get(), 354809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 355f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move(Result), RParenLoc); 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 35720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 360c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 361c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 362c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 363c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 364c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 365c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 36620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXTypeid() { 367c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 368c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 369c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 370c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation LParenLoc = Tok.getLocation(); 371c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation RParenLoc; 372c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 373c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 374c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, 375c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl "typeid")) 37620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 377c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 37815faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl OwningExprResult Result(Actions); 379c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 380c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 381809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 382c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 383c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 384c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 385c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 386809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 38720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 388c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 389c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 390809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor Ty.get(), RParenLoc); 391c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 392e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // C++0x [expr.typeid]p3: 393e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // When typeid is applied to an expression other than an lvalue of a 394e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // polymorphic class type [...] The expression is an unevaluated 395e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // operand (Clause 5). 396e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // 397e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // Note that we can't tell whether the expression is an lvalue of a 398e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // polymorphic class type until after we've parsed the expression, so 399ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // we the expression is potentially potentially evaluated. 400ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor EnterExpressionEvaluationContext Unevaluated(Actions, 401ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor Action::PotentiallyPotentiallyEvaluated); 402c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 403c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 404c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 4050e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 406c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SkipUntil(tok::r_paren); 407c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 408c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl MatchRHSPunctuation(tok::r_paren, LParenLoc); 409c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 410c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 411effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 412c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 413c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 414c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 41520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 416c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 417c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 4225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 42320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXBoolLiteral() { 4245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 425f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 42750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 42850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 42950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 43050dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 43150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 43220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseThrowExpression() { 43350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 43450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 43520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 4362a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 4372a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 4382a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 4392a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 4402a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 4412a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 4422a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 4432a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 4442a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 4452a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 446f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, ExprArg(Actions)); 44750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 4482a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 4492f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Expr(ParseAssignmentExpression()); 45020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl if (Expr.isInvalid()) return move(Expr); 451f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThrow(ThrowLoc, move(Expr)); 4522a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 45350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 4544cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4554cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 4564cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 4574cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 4584cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 4594cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 46020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult Parser::ParseCXXThis() { 4614cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 4624cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 463f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 4644cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 465987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 466987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 467987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 468987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 469987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 470987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 471987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 472987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier '(' expression-list[opt] ')' [C++ 5.2.3] 473987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typename-specifier '(' expression-list[opt] ')' [TODO] 474987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 47520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::OwningExprResult 47620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 477987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 4785ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor TypeTy *TypeRep = Actions.ActOnTypeName(CurScope, DeclaratorInfo).get(); 479987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 480987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(Tok.is(tok::l_paren) && "Expected '('!"); 481987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation LParenLoc = ConsumeParen(); 482987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 483a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector Exprs(Actions); 484987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis CommaLocsTy CommaLocs; 485987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 486987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (Tok.isNot(tok::r_paren)) { 487987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (ParseExpressionList(Exprs, CommaLocs)) { 488987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SkipUntil(tok::r_paren); 48920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 490987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 491987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 492987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 493987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // Match the ')'. 494987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 495987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 496987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 497987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis "Unexpected number of commas!"); 498f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXTypeConstructExpr(DS.getSourceRange(), TypeRep, 499f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LParenLoc, move_arg(Exprs), 500beaaccd8e2a8748f77b66e2b330fb9136937e14cJay Foad CommaLocs.data(), RParenLoc); 501987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 502987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 50371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// ParseCXXCondition - if/switch/while/for condition expression. 50471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 50571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 50671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 50771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 50871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 50971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 51071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 5112f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian RedlParser::OwningExprResult Parser::ParseCXXCondition() { 512a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis if (!isCXXConditionDeclaration()) 51371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return ParseExpression(); // expression 51471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 51571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation StartLoc = Tok.getLocation(); 51671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 51771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 51871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclSpec DS; 51971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 52071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 52171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 52271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 52371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 52471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 52571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 52671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 527ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 528ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl OwningExprResult AsmLabel(ParseSimpleAsm(&Loc)); 5290e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 53071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 5312f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 53271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 533effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 534ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 53571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 53671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 53771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 538ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (Tok.is(tok::kw___attribute)) { 539ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 540ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl AttributeList *AttrList = ParseAttributes(&Loc); 541ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.AddAttributes(AttrList, Loc); 542ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 54371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 54471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 54571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.isNot(tok::equal)) 5462f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(Diag(Tok, diag::err_expected_equal_after_declarator)); 54771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation EqualLoc = ConsumeToken(); 5482f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult AssignExpr(ParseAssignmentExpression()); 5490e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AssignExpr.isInvalid()) 5502f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl return ExprError(); 5512f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl 552f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXConditionDeclarationExpr(CurScope, StartLoc, 553f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl DeclaratorInfo,EqualLoc, 554f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move(AssignExpr)); 55571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 55671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 557987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 558987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 559987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 560987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 561987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 562eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 563987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 564987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 565987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 566987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 567987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 568987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 569987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 570987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 571987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 572987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 573987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 574987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 575987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 576987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 577987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 578987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 579987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 580987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 581987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 582987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 583987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 584987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 585987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 586987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 587987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 588987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 58955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 59055a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 59155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner assert(0 && "Annotation token should already be formed!"); 592987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis default: 593987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(0 && "Not a simple-type-specifier token!"); 594987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis abort(); 59555a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 596987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 597b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 5981a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, 599eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Tok.getAnnotationValue()); 600987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 601987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 602987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 603987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 604987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 605987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec); 606987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 607987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 608987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec); 609987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 610987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 611987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec); 612987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 613987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 614987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec); 615987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 616987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 617987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec); 618987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 619987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 620987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec); 621987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 622987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 623987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec); 624987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 625987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 626987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec); 627987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 628987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 629987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec); 630987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 631987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 632987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec); 633987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 634987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 635987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec); 636987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 637987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 638987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 639987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 640987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 6419b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 642987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 643987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 644b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 645eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 646eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 647eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 648987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 6499b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 650987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 6511cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6522f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 6532f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 6542f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 6552f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 6562f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 6572f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 6582f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 6592f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 6602f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 6612f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 6622f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 6632f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 6642f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DS.SetRangeStart(Tok.getLocation()); 6652f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor const char *PrevSpec = 0; 6662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor int isInvalid = 0; 6672f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 6682f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse one or more of the type specifiers. 6697a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner if (!ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec)) { 6701ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner Diag(Tok, diag::err_operator_missing_type_specifier); 6712f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return true; 6722f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor } 6737a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner 674b8006e50bf378ddbab9601c1fa07f151ac538ff3Ted Kremenek while (ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec)) ; 6752f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 6762f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 6772f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 6782f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 67943c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor/// TryParseOperatorFunctionId - Attempts to parse a C++ overloaded 6801cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator name (C++ [over.oper]). If successful, returns the 6811cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// predefined identifier that corresponds to that overloaded 6821cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator. Otherwise, returns NULL and does not consume any tokens. 6831cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 6841cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator-function-id: [C++ 13.5] 6851cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 'operator' operator 6861cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 6871cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator: one of 6881cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// new delete new[] delete[] 6891cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// + - * / % ^ & | ~ 6901cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ! = < > += -= *= /= %= 6911cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ^= &= |= << >> >>= <<= == != 6921cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// <= >= && || ++ -- , ->* -> 6931cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// () [] 694ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlOverloadedOperatorKind 695ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TryParseOperatorFunctionId(SourceLocation *EndLoc) { 6969057a81efaf15c543aab1c5c8488e8a9ed2c0ff4Argyrios Kyrtzidis assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 697ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 6981cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 6991cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor OverloadedOperatorKind Op = OO_None; 7001cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor switch (NextToken().getKind()) { 7011cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_new: 7021cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 703ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'new' 7041cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 7051cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 706ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7071cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 7081cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_New; 7091cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 7101cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_New; 7111cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 712ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 713ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 714e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7151cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7161cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_delete: 7171cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 718ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeToken(); // 'delete' 7191cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 7201cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 721ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7221cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 7231cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_Delete; 7241cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 7251cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Delete; 7261cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 727ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 728ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 729e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7301cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 73102bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 7321cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::Token: Op = OO_##Name; break; 73302bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 7341cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor#include "clang/Basic/OperatorKinds.def" 7351cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7361cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_paren: 7371cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 7381cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeParen(); // '(' 739ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7401cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_paren, diag::err_expected_rparen); // ')' 741ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 742ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 743e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Call; 7441cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7451cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_square: 7461cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 7471cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 748ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = Tok.getLocation(); 7491cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 750ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 751ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 752e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_Subscript; 7531cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 7541cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor default: 755e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return OO_None; 7561cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 75743c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor 75843c7bad105f742988e7ca40564285c83bea854a5Douglas Gregor ConsumeToken(); // 'operator' 759ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Loc = ConsumeAnyToken(); // the operator itself 760ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 761ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = Loc; 762e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor return Op; 7631cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor} 7642f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7652f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseConversionFunctionId - Parse a C++ conversion-function-id, 7662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// which expresses the name of a user-defined conversion operator 7672f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// (C++ [class.conv.fct]p1). Returns the type that this operator is 7682f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// specifying a conversion for, or NULL if there was an error. 7692f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7702f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-function-id: [C++ 12.3.2] 7712f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// operator conversion-type-id 7722f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7732f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-type-id: 7742f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq conversion-declarator[opt] 7752f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 7762f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-declarator: 7772f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ptr-operator conversion-declarator[opt] 778ab197baec16bacade82325fb274cf6b992ac5d8aSebastian RedlParser::TypeTy *Parser::ParseConversionFunctionId(SourceLocation *EndLoc) { 7792f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 7802f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor ConsumeToken(); // 'operator' 7812f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7822f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the type-specifier-seq. 7832f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DeclSpec DS; 7842f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) 7852f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 7862f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7872f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 7882f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // ptr-operators. 7892f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 7904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 791ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (EndLoc) 792ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl *EndLoc = D.getSourceRange().getEnd(); 7932f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 7942f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Finish up the type. 7952f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Action::TypeResult Result = Actions.ActOnTypeName(CurScope, D); 7965ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor if (Result.isInvalid()) 7972f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 7982f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor else 7995ac8aff3d7431dc7e4d64d960574a10c9f7e0078Douglas Gregor return Result.get(); 8002f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 8014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 8034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 80459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 80559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 80659232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 80759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 8084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 8094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 8104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 8114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 8124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 8134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 8144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 8154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 8164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 8174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 818cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 819cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 820cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 821cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 822cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 823cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 824cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 8254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 8264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 8274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// [C++0x] braced-init-list [TODO] 8284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 82959232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 83059232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 83159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 83259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 8334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 8354c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 8364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 837a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector PlacementArgs(Actions); 8384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 8394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ParenTypeId; 841cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclSpec DS; 842cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 8434c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 8444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 8454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = ConsumeParen(); 846cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 847cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 84820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 849cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 8514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementRParen = MatchRHSPunctuation(tok::r_paren, PlacementLParen); 852cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 853cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 85420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 855cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 857cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 8584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 8594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 8604c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 8614c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 8624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 8634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 864cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SourceLocation LParen = ConsumeParen(); 865cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 866ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 867cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 868cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl MatchRHSPunctuation(tok::r_paren, LParen); 8694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = true; 8704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 871cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 872cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 873ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 874ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 875cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 876cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 877ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 8784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 8794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 8814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 882cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 883cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 884cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 885cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 886ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 887ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 888cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 889cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 890ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 8914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ParenTypeId = false; 8924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 893eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 894cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 89520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 896cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 8974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 898a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector ConstructorArgs(Actions); 8994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 9004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 9024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorLParen = ConsumeParen(); 9034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 9044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 905cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 906cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 90720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 908cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 9094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorRParen = MatchRHSPunctuation(tok::r_paren, ConstructorLParen); 911cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 912cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 91320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 914cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 9154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 917f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 918f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(PlacementArgs), PlacementRParen, 919f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl ParenTypeId, DeclaratorInfo, ConstructorLParen, 920f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(ConstructorArgs), ConstructorRParen); 9214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 9244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 9254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 9274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 9284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 9294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 93059232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 9314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 9324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 9334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 9344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LLoc = ConsumeBracket(); 9352f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Size(first ? ParseExpression() 9362f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 9370e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 9384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 9394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SkipUntil(tok::r_square); 9404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 9414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 9434c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 944ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation RLoc = MatchRHSPunctuation(tok::r_square, LLoc); 9454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl D.AddTypeInfo(DeclaratorChunk::getArray(0, /*static=*/false, /*star=*/false, 946ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl Size.release(), LLoc), 947ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl RLoc); 9484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 949ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (RLoc.isInvalid()) 9504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 9514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9534c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9544c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 9554c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 9564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 9584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 9594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 9604c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 9614c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 9624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 9634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 964cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redlbool Parser::ParseExpressionListOrTypeId(ExprListTy &PlacementArgs, 96559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 9664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 9674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 968cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 969ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 970cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 971eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 9724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 9734c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 9754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 9764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 9774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 9784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 9794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 9814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 9824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 98359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 98459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 98559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 98659232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 98759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 9884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 9894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 9904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 99159232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::OwningExprResult 99259232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 99359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 99459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 9954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 9964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 9974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 9984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_square)) { 9994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 10004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LHS = ConsumeBracket(); 10014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation RHS = MatchRHSPunctuation(tok::r_square, LHS); 10024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (RHS.isInvalid()) 100320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 10044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 10054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 10062f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult Operand(ParseCastExpression(false)); 10070e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 100820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Operand); 10094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1010f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, move(Operand)); 10114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 101264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 101364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redlstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) 101464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 101564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 101664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl default: assert(false && "Not a known unary type trait."); 101764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 101864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 101964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 102064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 102164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 102264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_constructor: return UTT_HasTrivialConstructor; 102364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 102464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 102564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 102664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 102764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 102864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 102964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 103064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 103164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 103264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 103364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 103464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 103564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 103664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 103764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 103864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 103964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 104064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 104164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 104264b45f7e0d3167f040841ac2920aead7f080730dSebastian RedlParser::OwningExprResult Parser::ParseUnaryTypeTrait() 104364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl{ 104464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 104564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 104664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 104764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation LParen = Tok.getLocation(); 104864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 104964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 105064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 105164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 105264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 105364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 1054809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 105564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 105664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 105764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 1058809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 1059809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 1060809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 1061809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, LParen, Ty.get(), RParen); 106264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 1063f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1064f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 1065f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 1066f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 1067f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::OwningExprResult 1068f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 1069f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis TypeTy *&CastTy, 1070f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation LParenLoc, 1071f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation &RParenLoc) { 1072f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(getLang().CPlusPlus && "Should only be called for C++!"); 1073f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 1074f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 1075f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1076f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis OwningExprResult Result(Actions, true); 1077f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis CastTy = 0; 1078f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1079f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 1080f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1081f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 1082f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 1083f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 1084f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 1085f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1086f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 1087f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 1088f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 1089f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1090f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 1091a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 1092f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // 1093f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // It uses a scheme similar to parsing inline methods. The parenthesized 1094f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // tokens are cached, the context that follows is determined (possibly by 1095f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parsing a cast-expression), and then we re-introduce the cached tokens 1096f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // into the token stream and parse them appropriately. 1097f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1098f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParenParseOption ParseAs; 1099f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis CachedTokens Toks; 1100f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1101f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Store the tokens of the parentheses. We will parse them after we determine 1102f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // the context that follows them. 1103f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (!ConsumeAndStoreUntil(tok::r_paren, tok::unknown, Toks, tok::semi)) { 1104f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We didn't find the ')' we expected. 1105f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1106f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1107f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1108f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1109f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 1110f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = CompoundLiteral; 1111f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } else { 1112f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis bool NotCastExpr; 1113b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // FIXME: Special-case ++ and --: "(S())++;" is not a cast-expression 1114b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman if (Tok.is(tok::l_paren) && NextToken().is(tok::r_paren)) { 1115b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr = true; 1116b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } else { 1117b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // Try parsing the cast-expression that may follow. 1118b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // If it is not a cast-expression, NotCastExpr will be true and no token 1119b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // will be consumed. 1120b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman Result = ParseCastExpression(false/*isUnaryExpression*/, 1121b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman false/*isAddressofOperand*/, 1122b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr); 1123b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } 1124f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1125f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // If we parsed a cast-expression, it's really a type-id, otherwise it's 1126f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // an expression. 1127f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = NotCastExpr ? SimpleExpr : CastExpr; 1128f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1129f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1130f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // The current token should go after the cached tokens. 1131f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Toks.push_back(Tok); 1132f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Re-enter the stored parenthesized tokens into the token stream, so we may 1133f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parse them now. 1134f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis PP.EnterTokenStream(Toks.data(), Toks.size(), 1135f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis true/*DisableMacroExpansion*/, false/*OwnsTokens*/); 1136f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Drop the current token and bring the first cached one. It's the same token 1137f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // as when we entered this function. 1138f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ConsumeAnyToken(); 1139f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1140f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs >= CompoundLiteral) { 1141f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis TypeResult Ty = ParseTypeName(); 1142f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1143f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Match the ')'. 1144f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (Tok.is(tok::r_paren)) 1145f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis RParenLoc = ConsumeParen(); 1146f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis else 1147f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1148f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1149f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs == CompoundLiteral) { 1150f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ExprType = CompoundLiteral; 1151f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ParseCompoundLiteralExpression(Ty.get(), LParenLoc, RParenLoc); 1152f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } 1153f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1154f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We parsed '(' type-id ')' and the thing after it wasn't a '{'. 1155f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == CastExpr); 1156f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1157f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (Ty.isInvalid()) 1158f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ExprError(); 1159f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1160f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis CastTy = Ty.get(); 1161f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1162f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Result is what ParseCastExpression returned earlier. 1163f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 1164f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Result = Actions.ActOnCastExpr(LParenLoc, CastTy, RParenLoc,move(Result)); 1165f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 1166f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1167f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1168f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Not a compound literal, and not followed by a cast-expression. 1169f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == SimpleExpr); 1170f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1171f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 1172f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Result = ParseExpression(); 1173f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 1174f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis Result = Actions.ActOnParenExpr(LParenLoc, Tok.getLocation(), move(Result)); 1175f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1176f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 1177f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 1178f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SkipUntil(tok::r_paren); 1179f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1180f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1181f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1182f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 1183f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 1184f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis else 1185f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1186f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1187f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 1188f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 1189