ParseExprCXX.cpp revision c34348a7ef1a6b3f92a644a227953800cd1f9947
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" 16bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor#include "RAIIObjectsForParser.h" 1719510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 1819510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor#include "llvm/Support/ErrorHandling.h" 203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Parse global scope or nested-name-specifier if present. 242dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 252dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// Parses a C++ global scope specifier ('::') or nested-name-specifier (which 261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// may be preceded by '::'). Note that this routine will not parse ::new or 272dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// ::delete; it will just leave them in the token stream. 28eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 29eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 30eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 31eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 32eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 33eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 34eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 35eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 362dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier 'template'[opt] simple-template-id '::' 372dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 382dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param SS the scope specifier that will be set to the parsed 402dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier (or empty) 412dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ObjectType if this nested-name-specifier is being parsed following 432dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the "." or "->" of a member access expression, this parameter provides the 442dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// type of the object whose members are being accessed. 45eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 462dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \param EnteringContext whether we will be entering into the context of 472dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the nested-name-specifier after parsing it. 482dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 49d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param MayBePseudoDestructor When non-NULL, points to a flag that 50d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// indicates whether this nested-name-specifier may be part of a 51d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor name. In this case, the flag will be set false 52d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we don't actually end up parsing a destructor name. Moreorover, 53d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we do end up determining that we are parsing a destructor name, 54d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// the last component of the nested-name-specifier is not parsed as 55d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// part of the scope specifier. 56d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 57b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor/// member access expression, e.g., the \p T:: in \p p->T::m. 58b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor/// 599ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// \returns true if there was an error parsing a scope specifier 60495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS, 61b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 62b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor bool EnteringContext, 63d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor bool *MayBePseudoDestructor) { 644bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 657452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 67eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 68c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Actions.RestoreNestedNameSpecifierAnnotation(Tok.getAnnotationValue(), 69c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.getAnnotationRange(), 70c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor SS); 71eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 729ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 73eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 74e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 7539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 7639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 775b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 785b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 795b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 805b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 815b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 842e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXGlobalScopeSpecifier(getCurScope(), ConsumeToken(), SS)) 852e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor return true; 862e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 8739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 88eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 89eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 90d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor bool CheckForDestructor = false; 91d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (MayBePseudoDestructor && *MayBePseudoDestructor) { 92d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CheckForDestructor = true; 93d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = false; 94d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 95d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 9639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 972dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (HasScopeSpecifier) { 982dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // C++ [basic.lookup.classref]p5: 992dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If the qualified-id has the form 1003b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 1012dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // ::class-name-or-namespace-name::... 1023b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 1032dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // the class-name-or-namespace-name is looked up in global scope as a 1042dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // class-name or namespace-name. 1052dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // 1062dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // To implement this, we clear out the object type as soon as we've 1072dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // seen a leading '::' or part of a nested-name-specifier. 108b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ObjectType = ParsedType(); 10981b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor 11081b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor if (Tok.is(tok::code_completion)) { 11181b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // Code completion for a nested-name-specifier, where the code 11281b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // code completion token follows the '::'. 11323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteQualifiedId(getCurScope(), SS, EnteringContext); 114dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor ConsumeCodeCompletionToken(); 11581b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor } 1162dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor } 1171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 11977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // nested-name-specifier 'template'[opt] simple-template-id '::' 12077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 12177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // Parse the optional 'template' keyword, then make sure we have 12277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // 'identifier <' after it. 12377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.is(tok::kw_template)) { 1242dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If we don't have a scope specifier or an object type, this isn't a 125eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // nested-name-specifier, since they aren't allowed to start with 126eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // 'template'. 1272dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (!HasScopeSpecifier && !ObjectType) 128eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman break; 129eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman 1307bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TentativeParsingAction TPA(*this); 13177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner SourceLocation TemplateKWLoc = ConsumeToken(); 132ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 133ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId TemplateName; 134ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Tok.is(tok::identifier)) { 135ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1367bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 137ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 138ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else if (Tok.is(tok::kw_operator)) { 139ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, 1407bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName)) { 1417bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 142ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1437bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 144ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 145e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if (TemplateName.getKind() != UnqualifiedId::IK_OperatorFunctionId && 146e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt TemplateName.getKind() != UnqualifiedId::IK_LiteralOperatorId) { 147ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Diag(TemplateName.getSourceRange().getBegin(), 148ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor diag::err_id_after_template_in_nested_name_spec) 149ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor << TemplateName.getSourceRange(); 1507bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 151ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 152ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 153ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 1547bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 15577cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 15677cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 1571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1587bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // If the next token is not '<', we have a qualified-id that refers 1597bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // to a template name, such as T::template apply, but is not a 1607bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // template-id. 1617bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor if (Tok.isNot(tok::less)) { 1627bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 1637bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor break; 1647bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 1657bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor 1667bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // Commit to parsing the template-id. 1677bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 168d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateTy Template; 16923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (TemplateNameKind TNK = Actions.ActOnDependentTemplateName(getCurScope(), 170d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateKWLoc, 171d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor SS, 172d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, 173d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor ObjectType, 174d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, 175d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Template)) { 176d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (AnnotateTemplateIdToken(Template, TNK, &SS, TemplateName, 177d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateKWLoc, false)) 178d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 179d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } else 1809ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 1811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner continue; 18377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 1841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 1861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We have 18739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 18839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // simple-template-id '::' 18939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 19039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // So we need to check whether the simple-template-id is of the 191c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // right kind (it should name a type or be dependent), and then 192c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // convert it into a type within the nested-name-specifier. 1931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateIdAnnotation *TemplateId 19439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor = static_cast<TemplateIdAnnotation *>(Tok.getAnnotationValue()); 195d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde)) { 196d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 1979ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 198d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 199d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 2001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump if (TemplateId->Kind == TNK_Type_template || 201c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor TemplateId->Kind == TNK_Dependent_template_name) { 20231a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor AnnotateTemplateIdTokenAsType(&SS); 20339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 2041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(Tok.is(tok::annot_typename) && 20539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor "AnnotateTemplateIdTokenAsType isn't working"); 20639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor Token TypeToken = Tok; 20739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor ConsumeToken(); 20839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 20939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 2101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 211c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor if (!HasScopeSpecifier) 21239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 214b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (ParsedType T = getTypeAnnotation(TypeToken)) { 2152e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), T, CCLoc, SS)) 2162e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor SS.SetInvalid(SourceRange(SS.getBeginLoc(), CCLoc)); 2172e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 2182e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor continue; 2192e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor } else { 2202e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor SS.SetInvalid(SourceRange(SS.getBeginLoc(), CCLoc)); 2212e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor } 2222e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 22339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor continue; 22467b9e831943300ce54e564e601971828ce4def15Chris Lattner } 2251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22667b9e831943300ce54e564e601971828ce4def15Chris Lattner assert(false && "FIXME: Only type template names supported here"); 22739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 22839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 2295c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 2305c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // The rest of the nested-name-specifier possibilities start with 2315c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // tok::identifier. 2325c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Tok.isNot(tok::identifier)) 2335c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner break; 2345c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 2355c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner IdentifierInfo &II = *Tok.getIdentifierInfo(); 2365c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 2375c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 2385c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '::' 2395c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // namespace-name '::' 2405c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier identifier '::' 2415c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Token Next = NextToken(); 24246646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 24346646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // If we get foo:bar, this is almost certainly a typo for foo::bar. Recover 24446646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // and emit a fixit hint for it. 245b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor if (Next.is(tok::colon) && !ColonIsSacred) { 2462e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.IsInvalidUnlessNestedName(getCurScope(), SS, II, 2472e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Tok.getLocation(), 2482e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Next.getLocation(), ObjectType, 249b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor EnteringContext) && 250b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // If the token after the colon isn't an identifier, it's still an 251b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // error, but they probably meant something else strange so don't 252b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // recover like this. 253b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor PP.LookAhead(1).is(tok::identifier)) { 254b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Diag(Next, diag::err_unexected_colon_in_nested_name_spec) 255849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateReplacement(Next.getLocation(), "::"); 256b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor 257b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // Recover as if the user wrote '::'. 258b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Next.setKind(tok::coloncolon); 259b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor } 26046646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner } 26146646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 2625c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::coloncolon)) { 26377549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde) && 26423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor !Actions.isNonTypeNestedNameSpecifier(getCurScope(), SS, Tok.getLocation(), 26577549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor II, ObjectType)) { 266d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 2679ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 268d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 269d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 2705c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have an identifier followed by a '::'. Lookup this name 2715c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // as the name in a nested-name-specifier. 2725c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation IdLoc = ConsumeToken(); 27346646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner assert((Tok.is(tok::coloncolon) || Tok.is(tok::colon)) && 27446646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner "NextToken() not working properly!"); 2755c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation CCLoc = ConsumeToken(); 2761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2772e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor HasScopeSpecifier = true; 2782e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), II, IdLoc, CCLoc, 2792e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor ObjectType, EnteringContext, SS)) 2802e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor SS.SetInvalid(SourceRange(IdLoc, CCLoc)); 2812e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 2825c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 2835c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 2841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2855c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 2865c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '<' 2875c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::less)) { 2885c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner TemplateTy Template; 289014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 290014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(&II, Tok.getLocation()); 2911fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 29223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (TemplateNameKind TNK = Actions.isTemplateName(getCurScope(), SS, 2937c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, 294014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName, 2952dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType, 296495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor EnteringContext, 2971fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Template, 2981fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization)) { 2995c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have found a template name, so annotate this this token 3005c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // with a template-id annotation. We do not permit the 3015c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // template-id to be translated into a type annotation, 3025c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // because some clients (e.g., the parsing of class template 3035c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // specializations) still want to see the original template-id 3045c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // token. 305ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 306ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (AnnotateTemplateIdToken(Template, TNK, &SS, TemplateName, 307ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation(), false)) 3089ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 3095c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 310d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor } 311d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 312d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor if (MemberOfUnknownSpecialization && (ObjectType || SS.isSet()) && 313d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor IsTemplateArgumentList(1)) { 314d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // We have something like t::getAs<T>, where getAs is a 315d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // member of an unknown specialization. However, this will only 316d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 317d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // before 'getAs' and treat this as a dependent template name. 318d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor Diag(Tok.getLocation(), diag::err_missing_dependent_template_keyword) 319d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << II.getName() 320d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << FixItHint::CreateInsertion(Tok.getLocation(), "template "); 321d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 322d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TemplateNameKind TNK 32323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor = Actions.ActOnDependentTemplateName(getCurScope(), 324d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Tok.getLocation(), SS, 325d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, ObjectType, 326d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template)) { 327d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor // Consume the identifier. 328d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor ConsumeToken(); 329d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (AnnotateTemplateIdToken(Template, TNK, &SS, TemplateName, 330d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor SourceLocation(), false)) 331d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 332d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } 333d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor else 334d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor return true; 335d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor 336d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor continue; 3375c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 3385c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 3395c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 34039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 34139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 34239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 34339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 3441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 345d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Even if we didn't see any pieces of a nested-name-specifier, we 346d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // still check whether there is a tilde in this position, which 347d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // indicates a potential pseudo-destructor. 348d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && Tok.is(tok::tilde)) 349d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 350d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 3519ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 352eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 353eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 354eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 355eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 356eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 357eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 358eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 359eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 360eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 361eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 362eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 363eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 364edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor/// '::' template-id 365eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 366eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 367eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 368eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 369eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 370eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 371eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 372eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 373eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 374eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 375eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 376eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 377eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 378eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 379eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 380eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 381eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 382eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 383eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 384eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 385eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 386eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 387eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 388eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 389eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 390eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 391ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 392ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 393ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 394ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 395ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 39660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 397eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 398eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 399eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 400eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 401eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 402b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); 40302a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor 40402a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor UnqualifiedId Name; 40502a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor if (ParseUnqualifiedId(SS, 40602a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor /*EnteringContext=*/false, 40702a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor /*AllowDestructorName=*/false, 40802a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor /*AllowConstructorName=*/false, 409b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 41002a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor Name)) 41102a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor return ExprError(); 412b681b61fea36618778b8030360e90e3f4641233bJohn McCall 413b681b61fea36618778b8030360e90e3f4641233bJohn McCall // This is only the direct operand of an & operator if it is not 414b681b61fea36618778b8030360e90e3f4641233bJohn McCall // followed by a postfix-expression suffix. 4159c72c6088d591ace8503b842d39448c2040f3033John McCall if (isAddressOfOperand && isPostfixExpressionSuffixStart()) 4169c72c6088d591ace8503b842d39448c2040f3033John McCall isAddressOfOperand = false; 41702a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor 41823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor return Actions.ActOnIdExpression(getCurScope(), SS, Name, Tok.is(tok::l_paren), 41902a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor isAddressOfOperand); 42002a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor 421eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 422eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 4235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 4245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 4255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 4275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 4285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 4295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 4315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 43260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXCasts() { 4335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 4355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown C++ cast!"); abort(); 4385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 4395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 4405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 4455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 4465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 44820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 4495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 450809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult CastTy = ParseTypeName(); 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4531ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 45420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 4555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LParenLoc = Tok.getLocation(), RParenLoc; 4575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 45821e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, CastName)) 45921e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 4605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 46160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result = ParseExpression(); 4621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 46321e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 46427591ff4fc64600fd67c5d81899e3efe5ef41a80Douglas Gregor RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 4655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 466809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (!Result.isInvalid() && !CastTy.isInvalid()) 46749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 468f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl LAngleBracketLoc, CastTy.get(), 469809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 4709ae2f076ca5ab1feb3ba95629099ec2319833701John McCall LParenLoc, Result.take(), RParenLoc); 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 47220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 4735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 4745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 475c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 476c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 477c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 478c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 479c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 480c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 48160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXTypeid() { 482c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 483c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 484c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 485c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation LParenLoc = Tok.getLocation(); 486c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation RParenLoc; 487c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 488c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 489c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, 490c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl "typeid")) 49120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 492c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 49360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result; 494c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 495c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 496809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 497c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 498c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 4994eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 500c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 5014eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (Ty.isInvalid() || RParenLoc.isInvalid()) 50220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 503c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 504c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 505b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Ty.get().getAsOpaquePtr(), RParenLoc); 506c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 507e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // C++0x [expr.typeid]p3: 5081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When typeid is applied to an expression other than an lvalue of a 5091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // polymorphic class type [...] The expression is an unevaluated 510e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // operand (Clause 5). 511e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // 5121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Note that we can't tell whether the expression is an lvalue of a 513e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // polymorphic class type until after we've parsed the expression, so 514ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // we the expression is potentially potentially evaluated. 515ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor EnterExpressionEvaluationContext Unevaluated(Actions, 516f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema::PotentiallyPotentiallyEvaluated); 517c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 518c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 519c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 5200e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 521c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SkipUntil(tok::r_paren); 522c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 5234eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 5244eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (RParenLoc.isInvalid()) 5254eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor return ExprError(); 5264eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor 527c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 528effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 529c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 530c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 531c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 53220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 533c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 534c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 53501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// ParseCXXUuidof - This handles the Microsoft C++ __uuidof expression. 53601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 53701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' expression ')' 53801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' type-id ')' 53901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 54001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois PichetExprResult Parser::ParseCXXUuidof() { 54101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet assert(Tok.is(tok::kw___uuidof) && "Not '__uuidof'!"); 54201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 54301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation OpLoc = ConsumeToken(); 54401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation LParenLoc = Tok.getLocation(); 54501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation RParenLoc; 54601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 54701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // __uuidof expressions are always parenthesized. 54801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, 54901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet "__uuidof")) 55001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 55101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 55201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet ExprResult Result; 55301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 55401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (isTypeIdInParens()) { 55501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet TypeResult Ty = ParseTypeName(); 55601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 55701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 55801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 55901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 56001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Ty.isInvalid()) 56101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 56201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 56301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = Actions.ActOnCXXUuidof(OpLoc, LParenLoc, /*isType=*/true, 56401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Ty.get().getAsOpaquePtr(), RParenLoc); 56501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } else { 56601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); 56701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = ParseExpression(); 56801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 56901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 57001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Result.isInvalid()) 57101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SkipUntil(tok::r_paren); 57201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet else { 57301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 57401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 57501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = Actions.ActOnCXXUuidof(OpLoc, LParenLoc, /*isType=*/false, 57601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result.release(), RParenLoc); 57701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 57801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 57901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 58001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return move(Result); 58101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet} 58201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 583d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \brief Parse a C++ pseudo-destructor expression after the base, 584d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// . or -> operator, and nested-name-specifier have already been 585d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// parsed. 586d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 587d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression: [C++ 5.2] 588d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression . pseudo-destructor-name 589d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression -> pseudo-destructor-name 590d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 591d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor-name: 592d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] type-name :: ~type-name 593d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier template simple-template-id :: 594d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ~type-name 595d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] ~type-name 596d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 59760d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 598d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas GregorParser::ParseCXXPseudoDestructor(ExprArg Base, SourceLocation OpLoc, 599d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor tok::TokenKind OpKind, 600d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CXXScopeSpec &SS, 601b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType) { 602d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // We're parsing either a pseudo-destructor-name or a dependent 603d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // member access that has the same form as a 604d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // pseudo-destructor-name. We parse both in the same way and let 605d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // the action model sort them out. 606d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // 607d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Note that the ::[opt] nested-name-specifier[opt] has already 608d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been parsed, and if there was a simple-template-id, it has 609d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been coalesced into a template-id annotation token. 610d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId FirstTypeName; 611d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation CCLoc; 612d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::identifier)) { 613d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 614d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 615d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 616d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 617d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else if (Tok.is(tok::annot_template_id)) { 618d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setTemplateId( 619d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor (TemplateIdAnnotation *)Tok.getAnnotationValue()); 620d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 621d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 622d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 623d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else { 624d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(0, SourceLocation()); 625d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 626d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 627d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the tilde. 628d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::tilde) && "ParseOptionalCXXScopeSpecifier fail"); 629d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 630d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (!Tok.is(tok::identifier)) { 631d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 632d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 633d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 634d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 635d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the second type. 636d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId SecondTypeName; 637d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor IdentifierInfo *Name = Tok.getIdentifierInfo(); 638d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation NameLoc = ConsumeToken(); 639d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SecondTypeName.setIdentifier(Name, NameLoc); 640d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 641d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // If there is a '<', the second type name is a template-id. Parse 642d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // it as such. 643d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::less) && 644d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ParseUnqualifiedIdTemplateId(SS, Name, NameLoc, false, ObjectType, 6450278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor SecondTypeName, /*AssumeTemplateName=*/true, 6460278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor /*TemplateKWLoc*/SourceLocation())) 647d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 648d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 6499ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, 6509ae2f076ca5ab1feb3ba95629099ec2319833701John McCall OpLoc, OpKind, 651d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SS, FirstTypeName, CCLoc, 652d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor TildeLoc, SecondTypeName, 653d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Tok.is(tok::l_paren)); 654d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor} 655d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 66160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXBoolLiteral() { 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 663f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 66550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 66650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 66750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 66850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 66950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 67060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseThrowExpression() { 67150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 67250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 67320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 6742a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 6752a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 6762a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 6772a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 6782a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 6792a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 6802a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 6812a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 6822a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 6832a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 6849ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnCXXThrow(ThrowLoc, 0); 68550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 6862a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 68760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Expr(ParseAssignmentExpression()); 68820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl if (Expr.isInvalid()) return move(Expr); 6899ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnCXXThrow(ThrowLoc, Expr.take()); 6902a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 69150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 6924cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 6934cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 6944cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 6954cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 6964cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 6974cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 69860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXThis() { 6994cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 7004cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 701f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 7024cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 703987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 704987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 705987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 706987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 707987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 708987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 709987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 710987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier '(' expression-list[opt] ')' [C++ 5.2.3] 711987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typename-specifier '(' expression-list[opt] ')' [TODO] 712987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 71360d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 71420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 715987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 716b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = Actions.ActOnTypeName(getCurScope(), DeclaratorInfo).get(); 717987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 718987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(Tok.is(tok::l_paren) && "Expected '('!"); 719bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor GreaterThanIsOperatorScope G(GreaterThanIsOperator, true); 720bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor 721987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation LParenLoc = ConsumeParen(); 722987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 723a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector Exprs(Actions); 724987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis CommaLocsTy CommaLocs; 725987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 726987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (Tok.isNot(tok::r_paren)) { 727987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (ParseExpressionList(Exprs, CommaLocs)) { 728987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SkipUntil(tok::r_paren); 72920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 730987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 731987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 732987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 733987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // Match the ')'. 734987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 735987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 736ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl // TypeRep could be null, if it references an invalid typedef. 737ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl if (!TypeRep) 738ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl return ExprError(); 739ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl 740987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 741987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis "Unexpected number of commas!"); 742ab6677ec401cfd2c82b34e4cdfebd55a9dc25778Douglas Gregor return Actions.ActOnCXXTypeConstructExpr(TypeRep, LParenLoc, move_arg(Exprs), 743a1a04786cea2445759026edacd096abd1fbf4a05Douglas Gregor RParenLoc); 744987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 745987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 74699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// ParseCXXCondition - if/switch/while condition expression. 74771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 74871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 74971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 75071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 75171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 75271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 75371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 75499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \param ExprResult if the condition was parsed as an expression, the 75599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// parsed expression. 75699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 75799e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \param DeclResult if the condition was parsed as a declaration, the 75899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// parsed declaration. 75999e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 760586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param Loc The location of the start of the statement that requires this 761586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// condition, e.g., the "for" in a for loop. 762586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 763586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param ConvertToBoolean Whether the condition expression should be 764586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// converted to a boolean value. 765586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 76699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \returns true if there was a parsing, false otherwise. 76760d7b3a319d84d688752be3870615ac0f111fb16John McCallbool Parser::ParseCXXCondition(ExprResult &ExprOut, 76860d7b3a319d84d688752be3870615ac0f111fb16John McCall Decl *&DeclOut, 769586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor SourceLocation Loc, 770586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor bool ConvertToBoolean) { 77101dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor if (Tok.is(tok::code_completion)) { 772f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Condition); 773dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor ConsumeCodeCompletionToken(); 77401dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor } 77501dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor 77699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor if (!isCXXConditionDeclaration()) { 777586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // Parse the expression. 77860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ParseExpression(); // expression 77960d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = 0; 78060d7b3a319d84d688752be3870615ac0f111fb16John McCall if (ExprOut.isInvalid()) 781586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor return true; 782586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 783586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // If required, convert to a boolean value. 784586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor if (ConvertToBoolean) 78560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut 78660d7b3a319d84d688752be3870615ac0f111fb16John McCall = Actions.ActOnBooleanCondition(getCurScope(), Loc, ExprOut.get()); 78760d7b3a319d84d688752be3870615ac0f111fb16John McCall return ExprOut.isInvalid(); 78899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 78971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 79071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 79171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclSpec DS; 79271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 79371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 79471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 79571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 79671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 79771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 79871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 79971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 800ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 80160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult AsmLabel(ParseSimpleAsm(&Loc)); 8020e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 80371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 80499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return true; 80571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 806effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 807ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 80871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 80971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 81071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 8117f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(DeclaratorInfo); 81271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 81399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // Type-check the declaration itself. 81460d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclResult Dcl = Actions.ActOnCXXConditionDeclaration(getCurScope(), 8157f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DeclaratorInfo); 81660d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = Dcl.get(); 81760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ExprError(); 818a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 81971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 820a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis if (isTokenEqualOrMistypedEqualEqual( 821a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis diag::err_invalid_equalequal_after_declarator)) { 822dec0984fce504a39a7f085774fb67cfd9957be58Jeffrey Yasskin ConsumeToken(); 82360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult AssignExpr(ParseAssignmentExpression()); 82499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor if (!AssignExpr.isInvalid()) 82534b41d939a1328f484511c6002ba2456db879a29Richard Smith Actions.AddInitializerToDecl(DeclOut, AssignExpr.take(), false, 82634b41d939a1328f484511c6002ba2456db879a29Richard Smith DS.getTypeSpecType() == DeclSpec::TST_auto); 82799e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } else { 82899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // FIXME: C++0x allows a braced-init-list 82999e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor Diag(Tok, diag::err_expected_equal_after_declarator); 83099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 83199e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor 832586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // FIXME: Build a reference to this declaration? Convert it to bool? 833586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // (This is currently handled by Sema). 834483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith 835483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith Actions.FinalizeDeclaration(DeclOut); 836586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 83799e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return false; 83871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 83971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 8406aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// \brief Determine whether the current token starts a C++ 8416aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// simple-type-specifier. 8426aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregorbool Parser::isCXXSimpleTypeSpecifier() const { 8436aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor switch (Tok.getKind()) { 8446aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::annot_typename: 8456aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_short: 8466aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_long: 8476aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_signed: 8486aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_unsigned: 8496aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_void: 8506aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_char: 8516aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_int: 8526aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_float: 8536aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_double: 8546aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_wchar_t: 8556aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_char16_t: 8566aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_char32_t: 8576aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_bool: 8586aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor // FIXME: C++0x decltype support. 8596aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor // GNU typeof support. 8606aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_typeof: 8616aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor return true; 8626aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 8636aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor default: 8646aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor break; 8656aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor } 8666aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 8676aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor return false; 8686aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor} 8696aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 870987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 871987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 872987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 873987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 874987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 875eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 876987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 877987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 878987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 879987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 880987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 881987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 882987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 883987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 884987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 885987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 886987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 887987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 888987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 889987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 890987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 891987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 892987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 893987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 894987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 895987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 896987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 897987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 898987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 899fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 900987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 9011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 902987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 90355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 90455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 90555a7cefc846765ac7d142a63f773747a20518d71Chris Lattner assert(0 && "Annotation token should already be formed!"); 9061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: 907987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(0 && "Not a simple-type-specifier token!"); 908987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis abort(); 90955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 910987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 911b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 9126952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (getTypeAnnotation(Tok)) 9136952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, DiagID, 9146952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor getTypeAnnotation(Tok)); 9156952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor else 9166952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecError(); 9179bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 9189bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 9199bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ConsumeToken(); 9209bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 9219bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C supports syntax of the form 'id<proto1,proto2>' where 'id' 9229bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // is a specific typedef and 'itf<proto1,proto2>' where 'itf' is an 9239bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C interface. If we don't have Objective-C or a '<', this is 9249bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // just a normal reference to a typedef name. 9259bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor if (Tok.is(tok::less) && getLang().ObjC1) 9269bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ParseObjCProtocolQualifiers(DS); 9279bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 9289bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.Finish(Diags, PP); 9299bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor return; 930987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 9311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 932987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 933987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 934fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec, DiagID); 935987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 936987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 937fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec, DiagID); 938987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 939987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 940fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec, DiagID); 941987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 942987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 943fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec, DiagID); 944987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 945987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 946fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec, DiagID); 947987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 948987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 949fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec, DiagID); 950987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 951987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 952fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec, DiagID); 953987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 954987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 955fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec, DiagID); 956987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 957987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 958fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec, DiagID); 959987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 960987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 961fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec, DiagID); 962987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 963f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char16_t: 964fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char16, Loc, PrevSpec, DiagID); 965f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 966f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char32_t: 967fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char32, Loc, PrevSpec, DiagID); 968f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 969987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 970fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec, DiagID); 971987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 9721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9736aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor // FIXME: C++0x decltype support. 974987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 975987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 976987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 9779b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 978987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 979987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 980b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 981eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 982eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 983eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 984987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 9859b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 986987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 9871cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 9882f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 9892f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 9902f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 9912f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 9922f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 9932f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 9942f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 9952f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 9962f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 9972f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 9982f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 9992f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 10002f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DS.SetRangeStart(Tok.getLocation()); 10012f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor const char *PrevSpec = 0; 1002fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 1003fec54013fcd0eb72642741584ca04c1bc292bef8John McCall bool isInvalid = 0; 10042f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 10052f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse one or more of the type specifiers. 1006d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl if (!ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec, DiagID, 1007d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl ParsedTemplateInfo(), /*SuppressDeclarations*/true)) { 10089fa8e569407e02148888136609431a3fe083096dNick Lewycky Diag(Tok, diag::err_expected_type); 10092f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return true; 10102f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor } 10111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1012d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl while (ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec, DiagID, 1013d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl ParsedTemplateInfo(), /*SuppressDeclarations*/true)) 1014d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl {} 10152f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 1016396a9f235e160093b5f803f7a6a18fad7b68bdbeDouglas Gregor DS.Finish(Diags, PP); 10172f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 10182f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 10192f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 10203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \brief Finish parsing a C++ unqualified-id that is a template-id of 10213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// some form. 10223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 10233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// This routine is invoked when a '<' is encountered after an identifier or 10243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id is parsed by \c ParseUnqualifiedId() to determine 10253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// whether the unqualified-id is actually a template-id. This routine will 10263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// then parse the template arguments and form the appropriate template-id to 10273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// return to the caller. 10283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 10293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param SS the nested-name-specifier that precedes this template-id, if 10303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// we're actually parsing a qualified-id. 10313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 10323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Name for constructor and destructor names, this is the actual 10333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// identifier that may be a template-name. 10343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 10353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param NameLoc the location of the class-name in a constructor or 10363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// destructor. 10373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 10383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we're entering the scope of the 10393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 10403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 104146df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 104246df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 104346df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 10443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Id as input, describes the template-name or operator-function-id 10453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// that precedes the '<'. If template arguments were parsed successfully, 10463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// will be updated with the template-id. 10473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1048d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param AssumeTemplateId When true, this routine will assume that the name 1049d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// refers to a template without performing name lookup to verify. 1050d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 10513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if a parse error occurred, false otherwise. 10523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedIdTemplateId(CXXScopeSpec &SS, 10533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Name, 10543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation NameLoc, 10553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool EnteringContext, 1056b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1057d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId &Id, 10580278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor bool AssumeTemplateId, 10590278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor SourceLocation TemplateKWLoc) { 10600278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor assert((AssumeTemplateId || Tok.is(tok::less)) && 10610278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor "Expected '<' to finish parsing a template-id"); 10623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 10633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateTy Template; 10643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateNameKind TNK = TNK_Non_template; 10653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (Id.getKind()) { 10663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 1067014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 1068e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 1069d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (AssumeTemplateId) { 107023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor TNK = Actions.ActOnDependentTemplateName(getCurScope(), TemplateKWLoc, SS, 1071d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Id, ObjectType, EnteringContext, 1072d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Template); 1073d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 1074d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 10751fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } else { 10761fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 10777c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, 10787c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateKWLoc.isValid(), Id, 10797c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara ObjectType, EnteringContext, Template, 10801fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 10811fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor 10821fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (TNK == TNK_Non_template && MemberOfUnknownSpecialization && 10831fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor ObjectType && IsTemplateArgumentList()) { 10841fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // We have something like t->getAs<T>(), where getAs is a 10851fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // member of an unknown specialization. However, this will only 10861fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 10871fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // before 'getAs' and treat this as a dependent template name. 10881fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor std::string Name; 10891fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) 10901fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = Id.Identifier->getName(); 10911fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else { 10921fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = "operator "; 10931fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_OperatorFunctionId) 10941fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += getOperatorSpelling(Id.OperatorFunctionId.Operator); 10951fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else 10961fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += Id.Identifier->getName(); 10971fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 10981fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Diag(Id.StartLocation, diag::err_missing_dependent_template_keyword) 10991fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << Name 11001fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << FixItHint::CreateInsertion(Id.StartLocation, "template "); 110123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor TNK = Actions.ActOnDependentTemplateName(getCurScope(), TemplateKWLoc, 1102d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor SS, Id, ObjectType, 1103d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template); 1104d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 11051fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor return true; 11061fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 11071fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 11083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 11093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1110014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_ConstructorName: { 1111014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 11121fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1113014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 11147c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 11157c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 11161fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 11171fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 11183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1119014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 11203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1121014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_DestructorName: { 1122014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 11231fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1124014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 11252d1c21414199a7452f122598189363a3922605b1Douglas Gregor if (ObjectType) { 112623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor TNK = Actions.ActOnDependentTemplateName(getCurScope(), TemplateKWLoc, SS, 1127d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, ObjectType, 1128d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template); 1129d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 11302d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 11312d1c21414199a7452f122598189363a3922605b1Douglas Gregor } else { 11327c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 11337c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 11341fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 11351fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 11362d1c21414199a7452f122598189363a3922605b1Douglas Gregor 1137b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (TNK == TNK_Non_template && !Id.DestructorName.get()) { 1138124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(NameLoc, diag::err_destructor_template_id) 1139124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor << Name << SS.getRange(); 11402d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 11412d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 11422d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 11433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1144014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 11453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 11463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor default: 11473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 11483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 11493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 11503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (TNK == TNK_Non_template) 11513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 11523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 11533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the enclosed template argument list. 11543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation LAngleLoc, RAngleLoc; 11553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgList TemplateArgs; 11560278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (Tok.is(tok::less) && 11570278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor ParseTemplateIdAfterTemplateName(Template, Id.StartLocation, 11583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor &SS, true, LAngleLoc, 11593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgs, 11603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor RAngleLoc)) 11613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 11623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 11633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier || 1164e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_OperatorFunctionId || 1165e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_LiteralOperatorId) { 11663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Form a parsed representation of the template-id to be stored in the 11673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // UnqualifiedId. 11683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateIdAnnotation *TemplateId 11693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor = TemplateIdAnnotation::Allocate(TemplateArgs.size()); 11703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 11713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) { 11723f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Name = Id.Identifier; 1173014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = OO_None; 11743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 11753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 1176014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Name = 0; 1177014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = Id.OperatorFunctionId.Operator; 1178014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 11793f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 11803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 11812b5289b6fd7e3d9899868410a498c081c9595662John McCall TemplateId->Template = Template; 11823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Kind = TNK; 11833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->LAngleLoc = LAngleLoc; 11843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->RAngleLoc = RAngleLoc; 1185314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor ParsedTemplateArgument *Args = TemplateId->getTemplateArgs(); 11863f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor for (unsigned Arg = 0, ArgEnd = TemplateArgs.size(); 1187314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor Arg != ArgEnd; ++Arg) 11883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Args[Arg] = TemplateArgs[Arg]; 11893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 11903f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setTemplateId(TemplateId); 11913f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 11923f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 11933f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 11943f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Bundle the template arguments together. 11953f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, TemplateArgs.data(), 11963f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgs.size()); 11973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 11983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Constructor and destructor names. 1199f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Type 12003f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor = Actions.ActOnTemplateIdType(Template, NameLoc, 12013f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor LAngleLoc, TemplateArgsPtr, 12023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor RAngleLoc); 12033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Type.isInvalid()) 12043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 12053f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 12063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_ConstructorName) 12073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setConstructorName(Type.get(), NameLoc, RAngleLoc); 12083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor else 12093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setDestructorName(Id.StartLocation, Type.get(), RAngleLoc); 12103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 12113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 12123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 12133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1214ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse an operator-function-id or conversion-function-id as part 1215ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// of a C++ unqualified-id. 12163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1217ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// This routine is responsible only for parsing the operator-function-id or 1218ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id; it does not handle template arguments in any way. 12193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1220ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 12213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id: [C++ 13.5] 12223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 'operator' operator 12233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1224ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator: one of 12253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// new delete new[] delete[] 12263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// + - * / % ^ & | ~ 12273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ! = < > += -= *= /= %= 12283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ^= &= |= << >> >>= <<= == != 12293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// <= >= && || ++ -- , ->* -> 12303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// () [] 12313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 12323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-function-id: [C++ 12.3.2] 12333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator conversion-type-id 12343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 12353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-type-id: 12363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// type-specifier-seq conversion-declarator[opt] 12373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 12383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-declarator: 12393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ptr-operator conversion-declarator[opt] 12403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \endcode 12413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 12423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param The nested-name-specifier that preceded this unqualified-id. If 12433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 12443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 12453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we are entering the scope of the 12463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 12473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1248ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 1249ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// expression, the type of the base object whose member is being accessed. 1250ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1251ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 1252ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1253ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \returns true if parsing fails, false otherwise. 1254ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregorbool Parser::ParseUnqualifiedIdOperator(CXXScopeSpec &SS, bool EnteringContext, 1255b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1256ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId &Result) { 1257ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 1258ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1259ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'operator' keyword. 1260ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation KeywordLoc = ConsumeToken(); 1261ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1262ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Determine what kind of operator name we have. 1263ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor unsigned SymbolIdx = 0; 1264ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation SymbolLocations[3]; 1265ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Op = OO_None; 1266ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor switch (Tok.getKind()) { 1267ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_new: 1268ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_delete: { 1269ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor bool isNew = Tok.getKind() == tok::kw_new; 1270ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'new' or 'delete'. 1271ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); 1272ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Tok.is(tok::l_square)) { 1273ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the '['. 1274ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation LBracketLoc = ConsumeBracket(); 1275ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the ']'. 1276ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation RBracketLoc = MatchRHSPunctuation(tok::r_square, 1277ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor LBracketLoc); 1278ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (RBracketLoc.isInvalid()) 1279ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1280ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1281ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = LBracketLoc; 1282ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = RBracketLoc; 1283ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_Array_New : OO_Array_Delete; 1284ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 1285ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_New : OO_Delete; 1286ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1287ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1288ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1289ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1290ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 1291ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::Token: \ 1292ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); \ 1293ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_##Name; \ 1294ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1295ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 1296ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#include "clang/Basic/OperatorKinds.def" 1297ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1298ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_paren: { 1299ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the '('. 1300ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation LParenLoc = ConsumeParen(); 1301ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the ')'. 1302ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, 1303ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor LParenLoc); 1304ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (RParenLoc.isInvalid()) 1305ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1306ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1307ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = LParenLoc; 1308ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = RParenLoc; 1309ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Call; 1310ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1311ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1312ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1313ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_square: { 1314ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the '['. 1315ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation LBracketLoc = ConsumeBracket(); 1316ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the ']'. 1317ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation RBracketLoc = MatchRHSPunctuation(tok::r_square, 1318ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor LBracketLoc); 1319ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (RBracketLoc.isInvalid()) 1320ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1321ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1322ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = LBracketLoc; 1323ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = RBracketLoc; 1324ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Subscript; 1325ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1326ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1327ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1328ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::code_completion: { 1329ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Code completion for the operator name. 133023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOperatorName(getCurScope()); 1331ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1332ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the operator token. 1333dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor ConsumeCodeCompletionToken(); 1334ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1335ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Don't try to parse any further. 1336ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1337ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1338ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1339ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor default: 1340ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1341ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1342ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1343ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Op != OO_None) { 1344ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // We have parsed an operator-function-id. 1345ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setOperatorFunctionId(KeywordLoc, Op, SymbolLocations); 1346ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 1347ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 13480486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 13490486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // Parse a literal-operator-id. 13500486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // 13510486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // literal-operator-id: [C++0x 13.5.8] 13520486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // operator "" identifier 13530486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 13540486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt if (getLang().CPlusPlus0x && Tok.is(tok::string_literal)) { 13550486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt if (Tok.getLength() != 2) 13560486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Diag(Tok.getLocation(), diag::err_operator_string_not_empty); 13570486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt ConsumeStringToken(); 13580486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 13590486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt if (Tok.isNot(tok::identifier)) { 13600486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Diag(Tok.getLocation(), diag::err_expected_ident); 13610486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt return true; 13620486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 13630486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 13640486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt IdentifierInfo *II = Tok.getIdentifierInfo(); 13650486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Result.setLiteralOperatorId(II, KeywordLoc, ConsumeToken()); 13663e518bda00d710754ca077cf9be8dd821e16a854Sean Hunt return false; 13670486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 1368ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1369ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse a conversion-function-id. 1370ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1371ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-function-id: [C++ 12.3.2] 1372ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator conversion-type-id 1373ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1374ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-type-id: 1375ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // type-specifier-seq conversion-declarator[opt] 1376ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1377ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-declarator: 1378ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operator conversion-declarator[opt] 1379ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1380ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the type-specifier-seq. 1381ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor DeclSpec DS; 1382f6e6fc801c700c7b8ac202ddbe550d9843a816fcDouglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) // FIXME: ObjectType? 1383ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1384ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1385ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 1386ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operators. 1387ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 1388ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 1389ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1390ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Finish up the type. 1391f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Ty = Actions.ActOnTypeName(getCurScope(), D); 1392ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Ty.isInvalid()) 1393ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1394ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1395ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Note that this is a conversion-function-id. 1396ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setConversionFunctionId(KeywordLoc, Ty.get(), 1397ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor D.getSourceRange().getEnd()); 1398ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 1399ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 1400ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1401ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse a C++ unqualified-id (or a C identifier), which describes the 1402ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// name of an entity. 1403ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1404ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 1405ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// unqualified-id: [C++ expr.prim.general] 1406ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// identifier 1407ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator-function-id 1408ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id 1409ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// [C++0x] literal-operator-id [TODO] 1410ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// ~ class-name 1411ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template-id 1412ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1413ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \endcode 1414ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1415ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param The nested-name-specifier that preceded this unqualified-id. If 1416ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 1417ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1418ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param EnteringContext whether we are entering the scope of the 1419ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// nested-name-specifier. 1420ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 14213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowDestructorName whether we allow parsing of a destructor name. 14223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 14233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowConstructorName whether we allow parsing a constructor name. 14243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 142546df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 142646df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 142746df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 14283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 14293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 14303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if parsing fails, false otherwise. 14313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedId(CXXScopeSpec &SS, bool EnteringContext, 14323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowDestructorName, 14333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowConstructorName, 1434b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 14353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor UnqualifiedId &Result) { 14360278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 14370278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // Handle 'A::template B'. This is for template-ids which have not 14380278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // already been annotated by ParseOptionalCXXScopeSpecifier(). 14390278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor bool TemplateSpecified = false; 14400278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor SourceLocation TemplateKWLoc; 14410278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (getLang().CPlusPlus && Tok.is(tok::kw_template) && 14420278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (ObjectType || SS.isSet())) { 14430278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified = true; 14440278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateKWLoc = ConsumeToken(); 14450278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor } 14460278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 14473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 14483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // identifier 14493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (when it hasn't already been annotated) 14503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::identifier)) { 14513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Consume the identifier. 14523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Id = Tok.getIdentifierInfo(); 14533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation IdLoc = ConsumeToken(); 14543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1455b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor if (!getLang().CPlusPlus) { 1456b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // If we're not in C++, only identifiers matter. Record the 1457b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // identifier and return. 1458b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor Result.setIdentifier(Id, IdLoc); 1459b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor return false; 1460b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor } 1461b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor 14623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (AllowConstructorName && 146323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*Id, getCurScope(), &SS)) { 14643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed a constructor name. 146523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Result.setConstructorName(Actions.getTypeName(*Id, IdLoc, getCurScope(), 14663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor &SS, false), 14673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdLoc, IdLoc); 14683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 14693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed an identifier. 14703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setIdentifier(Id, IdLoc); 14713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 14723f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 14733f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // If the next token is a '<', we may have a template. 14740278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) 14753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return ParseUnqualifiedIdTemplateId(SS, Id, IdLoc, EnteringContext, 14760278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor ObjectType, Result, 14770278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified, TemplateKWLoc); 14783f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 14793f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 14803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 14813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 14823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 14833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (already parsed and annotated) 14843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::annot_template_id)) { 14850efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateIdAnnotation *TemplateId 14860efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor = static_cast<TemplateIdAnnotation*>(Tok.getAnnotationValue()); 14870efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 14880efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // If the template-name names the current class, then this is a constructor 14890efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (AllowConstructorName && TemplateId->Name && 149023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*TemplateId->Name, getCurScope(), &SS)) { 14910efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (SS.isSet()) { 14920efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // C++ [class.qual]p2 specifies that a qualified template-name 14930efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // is taken as the constructor name where a constructor can be 14940efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // declared. Thus, the template arguments are extraneous, so 14950efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // complain about them and remove them entirely. 14960efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Diag(TemplateId->TemplateNameLoc, 14970efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor diag::err_out_of_line_constructor_template_id) 14980efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor << TemplateId->Name 1499849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval( 15000efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor SourceRange(TemplateId->LAngleLoc, TemplateId->RAngleLoc)); 15010efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setConstructorName(Actions.getTypeName(*TemplateId->Name, 15020efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->TemplateNameLoc, 150323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor getCurScope(), 15040efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor &SS, false), 15050efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->TemplateNameLoc, 15060efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->RAngleLoc); 15070efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->Destroy(); 15080efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 15090efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 15100efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 15110efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 15120efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setConstructorTemplateId(TemplateId); 15130efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 15140efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 15150efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 15160efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 15173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have already parsed a template-id; consume the annotation token as 15183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // our unqualified-id. 15190efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setTemplateId(TemplateId); 15203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor ConsumeToken(); 15213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 15223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 15233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 15253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // operator-function-id 15263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // conversion-function-id 15273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::kw_operator)) { 1528ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, Result)) 15293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 15303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1531e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // If we have an operator-function-id or a literal-operator-id and the next 1532e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // token is a '<', we may have a 1533ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1534ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // template-id: 1535ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator-function-id < template-argument-list[opt] > 1536e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if ((Result.getKind() == UnqualifiedId::IK_OperatorFunctionId || 1537e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Result.getKind() == UnqualifiedId::IK_LiteralOperatorId) && 15380278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (TemplateSpecified || Tok.is(tok::less))) 1539ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return ParseUnqualifiedIdTemplateId(SS, 0, SourceLocation(), 1540ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor EnteringContext, ObjectType, 15410278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor Result, 15420278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified, TemplateKWLoc); 15433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 15453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 15463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1547b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor if (getLang().CPlusPlus && 1548b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor (AllowDestructorName || SS.isSet()) && Tok.is(tok::tilde)) { 15493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // C++ [expr.unary.op]p10: 15503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // There is an ambiguity in the unary-expression ~X(), where X is a 15513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // class-name. The ambiguity is resolved in favor of treating ~ as a 15523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unary complement rather than treating ~X as referring to a destructor. 15533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the '~'. 15553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 15563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name. 15583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.isNot(tok::identifier)) { 1559124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 15603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 15613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 15623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name (or template-name in a simple-template-id). 15643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *ClassName = Tok.getIdentifierInfo(); 15653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation ClassNameLoc = ConsumeToken(); 15663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15670278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) { 1568b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Result.setDestructorName(TildeLoc, ParsedType(), ClassNameLoc); 15692d1c21414199a7452f122598189363a3922605b1Douglas Gregor return ParseUnqualifiedIdTemplateId(SS, ClassName, ClassNameLoc, 15700278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor EnteringContext, ObjectType, Result, 15710278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified, TemplateKWLoc); 15722d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 15732d1c21414199a7452f122598189363a3922605b1Douglas Gregor 15743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Note that this is a destructor name. 1575b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType Ty = Actions.getDestructorName(TildeLoc, *ClassName, 1576b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ClassNameLoc, getCurScope(), 1577b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall SS, ObjectType, 1578b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext); 1579124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor if (!Ty) 15803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 1581124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor 15823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setDestructorName(TildeLoc, Ty, ClassNameLoc); 15833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 15843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 15853f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15862d1c21414199a7452f122598189363a3922605b1Douglas Gregor Diag(Tok, diag::err_expected_unqualified_id) 15872d1c21414199a7452f122598189363a3922605b1Douglas Gregor << getLang().CPlusPlus; 15883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 15893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 15903f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 15924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 15931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 159459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 159559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 159659232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 15974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 15984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 15994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 16004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 16014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 16024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 16034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 16044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 16054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 16064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 1607cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 1608cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 1609cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 1610cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 1611cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 1612cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 1613cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 16144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 16154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 16164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// [C++0x] braced-init-list [TODO] 16174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 161860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 161959232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 162059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 162159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 16224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 16234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 16244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 16254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1626a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector PlacementArgs(Actions); 16274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 16284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 16294bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor SourceRange TypeIdParens; 1630cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclSpec DS; 1631cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 16324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 16334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 16344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = ConsumeParen(); 1635cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 1636cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 163720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 1638cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 16394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 16404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementRParen = MatchRHSPunctuation(tok::r_paren, PlacementLParen); 1641cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 1642cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 164320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 1644cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 16454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1646cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 16474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 16484bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens = SourceRange(PlacementLParen, PlacementRParen); 16494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 16504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 16514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 16524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 16534bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens.setBegin(ConsumeParen()); 1654cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 1655ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 1656cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 16574bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens.setEnd(MatchRHSPunctuation(tok::r_paren, 16584bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens.getBegin())); 16594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 1660cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 1661cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 1662ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 1663ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 1664cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 1665cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 1666ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 16674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 16684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 16694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 1670cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 1671cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 1672cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 1673cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 1674ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 1675ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 1676cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 1677cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 1678ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 16794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 1680eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 1681cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 168220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 1683cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 16844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1685a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector ConstructorArgs(Actions); 16864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 16874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 16884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 16894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorLParen = ConsumeParen(); 16904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 16914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 1692cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 1693cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 169420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 1695cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 16964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 16974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorRParen = MatchRHSPunctuation(tok::r_paren, ConstructorLParen); 1698cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 1699cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 170020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 1701cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 17024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 17034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1704f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 1705f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(PlacementArgs), PlacementRParen, 17064bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens, DeclaratorInfo, ConstructorLParen, 1707f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(ConstructorArgs), ConstructorRParen); 17084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 17094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 17104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 17114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 17124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 17134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 17144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 17154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 17164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 171759232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 17184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 17194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 17204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 17214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LLoc = ConsumeBracket(); 172260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Size(first ? ParseExpression() 17232f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 17240e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 17254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 17264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SkipUntil(tok::r_square); 17274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 17284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 17294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 17304c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1731ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation RLoc = MatchRHSPunctuation(tok::r_square, LLoc); 17327f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall D.AddTypeInfo(DeclaratorChunk::getArray(0, ParsedAttributes(), 17337f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall /*static=*/false, /*star=*/false, 17347e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Size.release(), LLoc, RLoc), 1735ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl RLoc); 17364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 1737ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (RLoc.isInvalid()) 17384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 17394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 17404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 17414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 17424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 17434c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 17444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 17454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 17464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 17474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 17484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 17494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 17504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 17514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 1752ca0408fb49c1370430672acf2d770b7151cf71deJohn McCallbool Parser::ParseExpressionListOrTypeId( 1753ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall llvm::SmallVectorImpl<Expr*> &PlacementArgs, 175459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 17554c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 17564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 1757cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 1758ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 1759cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 1760eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 17614c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 17624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 17634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 17644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 17654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 17664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 17674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 17684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 17694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 17704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 17714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 177259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 177359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 177459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 177559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 177659232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 17774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 17784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 17794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 178060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 178159232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 178259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 178359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 17844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 17854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 17864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 17874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_square)) { 17884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 17894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LHS = ConsumeBracket(); 17904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation RHS = MatchRHSPunctuation(tok::r_square, LHS); 17914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (RHS.isInvalid()) 179220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 17934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 17944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 179560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Operand(ParseCastExpression(false)); 17960e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 179720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Operand); 17984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 17999ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, Operand.take()); 18004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 180164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 18021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) { 180364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 180438c2b730a8553fa1cf369d0c5567f8b5d0a3dda8Francois Pichet default: llvm_unreachable("Not a known unary type trait"); 180564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 180664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 180764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 180864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 180964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 181064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_constructor: return UTT_HasTrivialConstructor; 181164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 181264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 181364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 181464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 181564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 181664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 181764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 181864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 181964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 1820ccf43505dbc47da041c06125f90b3bd3ac7eac97Sebastian Redl case tok::kw___is_literal: return UTT_IsLiteral; 182164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 18226ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 18236ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 18246ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichetstatic BinaryTypeTrait BinaryTypeTraitFromTokKind(tok::TokenKind kind) { 18256ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet switch(kind) { 182638c2b730a8553fa1cf369d0c5567f8b5d0a3dda8Francois Pichet default: llvm_unreachable("Not a known binary type trait"); 1827f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___is_base_of: return BTT_IsBaseOf; 1828f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___builtin_types_compatible_p: return BTT_TypeCompatible; 18299f3611365d0f2297a910cf246e056708726ed10aDouglas Gregor case tok::kw___is_convertible_to: return BTT_IsConvertibleTo; 18306ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 183164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 183264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 183364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 183464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 183564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 183664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 183764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 183864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 183964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 184060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseUnaryTypeTrait() { 184164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 184264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 184364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 184464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation LParen = Tok.getLocation(); 184564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 184664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 184764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 184864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 184964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 185064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 1851809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 185264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 185364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 185464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 1855809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 1856809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 1857809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 18583d37c0ada0e46b87be0a10e8d52d990a97d3907aDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, Ty.get(), RParen); 185964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 1860f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 18616ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// ParseBinaryTypeTrait - Parse the built-in binary type-trait 18626ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// pseudo-functions that allow implementation of the TR1/C++0x type traits 18636ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// templates. 18646ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 18656ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// primary-expression: 18666ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// [GNU] binary-type-trait '(' type-id ',' type-id ')' 18676ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 18686ad6f2848d7652ab2991286eb48be440d3493b28Francois PichetExprResult Parser::ParseBinaryTypeTrait() { 18696ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet BinaryTypeTrait BTT = BinaryTypeTraitFromTokKind(Tok.getKind()); 18706ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SourceLocation Loc = ConsumeToken(); 18716ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 18726ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SourceLocation LParen = Tok.getLocation(); 18736ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 18746ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 18756ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 18766ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult LhsTy = ParseTypeName(); 18776ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (LhsTy.isInvalid()) { 18786ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 18796ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 18806ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 18816ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 18826ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (ExpectAndConsume(tok::comma, diag::err_expected_comma)) { 18836ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 18846ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 18856ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 18866ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 18876ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult RhsTy = ParseTypeName(); 18886ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (RhsTy.isInvalid()) { 18896ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 18906ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 18916ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 18926ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 18936ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 18946ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 18956ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return Actions.ActOnBinaryTypeTrait(BTT, Loc, LhsTy.get(), RhsTy.get(), RParen); 18966ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 18976ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 1898f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 1899f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 1900f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 190160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 1902f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 1903b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &CastTy, 1904f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation LParenLoc, 1905f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation &RParenLoc) { 1906f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(getLang().CPlusPlus && "Should only be called for C++!"); 1907f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 1908f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 1909f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 191060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(true); 1911b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall CastTy = ParsedType(); 1912f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1913f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 1914f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1915f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 1916f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 1917f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 1918f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 1919f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1920f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 1921f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 1922f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 1923f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 1924f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 1925a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 1926f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // 1927f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // It uses a scheme similar to parsing inline methods. The parenthesized 1928f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // tokens are cached, the context that follows is determined (possibly by 1929f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parsing a cast-expression), and then we re-introduce the cached tokens 1930f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // into the token stream and parse them appropriately. 1931f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 19321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenParseOption ParseAs; 1933f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis CachedTokens Toks; 1934f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1935f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Store the tokens of the parentheses. We will parse them after we determine 1936f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // the context that follows them. 193714b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis if (!ConsumeAndStoreUntil(tok::r_paren, Toks)) { 1938f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We didn't find the ')' we expected. 1939f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1940f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 1941f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1942f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1943f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 1944f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = CompoundLiteral; 1945f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } else { 1946f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis bool NotCastExpr; 1947b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // FIXME: Special-case ++ and --: "(S())++;" is not a cast-expression 1948b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman if (Tok.is(tok::l_paren) && NextToken().is(tok::r_paren)) { 1949b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr = true; 1950b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } else { 1951b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // Try parsing the cast-expression that may follow. 1952b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // If it is not a cast-expression, NotCastExpr will be true and no token 1953b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // will be consumed. 1954b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman Result = ParseCastExpression(false/*isUnaryExpression*/, 1955b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman false/*isAddressofOperand*/, 1956b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall NotCastExpr, 1957b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType()/*TypeOfCast*/); 1958b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } 1959f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1960f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // If we parsed a cast-expression, it's really a type-id, otherwise it's 1961f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // an expression. 1962f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = NotCastExpr ? SimpleExpr : CastExpr; 1963f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 1964f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 19651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The current token should go after the cached tokens. 1966f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Toks.push_back(Tok); 1967f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Re-enter the stored parenthesized tokens into the token stream, so we may 1968f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parse them now. 1969f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis PP.EnterTokenStream(Toks.data(), Toks.size(), 1970f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis true/*DisableMacroExpansion*/, false/*OwnsTokens*/); 1971f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Drop the current token and bring the first cached one. It's the same token 1972f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // as when we entered this function. 1973f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ConsumeAnyToken(); 1974f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1975f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs >= CompoundLiteral) { 1976f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis TypeResult Ty = ParseTypeName(); 1977f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1978f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Match the ')'. 1979f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (Tok.is(tok::r_paren)) 1980f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis RParenLoc = ConsumeParen(); 1981f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis else 1982f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 1983f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1984f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs == CompoundLiteral) { 1985f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ExprType = CompoundLiteral; 1986f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ParseCompoundLiteralExpression(Ty.get(), LParenLoc, RParenLoc); 1987f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1989f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We parsed '(' type-id ')' and the thing after it wasn't a '{'. 1990f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == CastExpr); 1991f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1992f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (Ty.isInvalid()) 1993f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ExprError(); 1994f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 1995f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis CastTy = Ty.get(); 1996f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 1997f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Result is what ParseCastExpression returned earlier. 1998f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 199923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Result = Actions.ActOnCastExpr(getCurScope(), LParenLoc, CastTy, RParenLoc, 20009ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Result.take()); 2001f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 2002f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 20031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2004f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Not a compound literal, and not followed by a cast-expression. 2005f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == SimpleExpr); 2006f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2007f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 2008f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Result = ParseExpression(); 2009f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 20109ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Result = Actions.ActOnParenExpr(LParenLoc, Tok.getLocation(), Result.take()); 2011f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2012f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 2013f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 2014f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SkipUntil(tok::r_paren); 2015f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 2016f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 20171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2018f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 2019f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 2020f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis else 2021f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 2022f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2023f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 2024f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 2025