ParseExprCXX.cpp revision ae7902c4293d9de8b9591759513f0d075f45022a
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" 18ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor#include "clang/Sema/Scope.h" 1919510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor#include "llvm/Support/ErrorHandling.h" 213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic int SelectDigraphErrorMessage(tok::TokenKind Kind) { 25ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith switch (Kind) { 26ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_template: return 0; 27ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_const_cast: return 1; 28ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_dynamic_cast: return 2; 29ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_reinterpret_cast: return 3; 30ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_static_cast: return 4; 31ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith default: 32ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith assert(0 && "Unknown type for digraph error message."); 33ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith return -1; 34ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith } 35ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 36ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 37ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Are the two tokens adjacent in the same source file? 38ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic bool AreTokensAdjacent(Preprocessor &PP, Token &First, Token &Second) { 39ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceManager &SM = PP.getSourceManager(); 40ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceLocation FirstLoc = SM.getSpellingLoc(First.getLocation()); 41ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceLocation FirstEnd = FirstLoc.getFileLocWithOffset(First.getLength()); 42ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith return FirstEnd == SM.getSpellingLoc(Second.getLocation()); 43ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 44ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 45ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Suggest fixit for "<::" after a cast. 46ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic void FixDigraph(Parser &P, Preprocessor &PP, Token &DigraphToken, 47ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Token &ColonToken, tok::TokenKind Kind, bool AtDigraph) { 48ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Pull '<:' and ':' off token stream. 49ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 50ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(DigraphToken); 51ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(ColonToken); 52ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 53ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceRange Range; 54ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setBegin(DigraphToken.getLocation()); 55ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setEnd(ColonToken.getLocation()); 56ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith P.Diag(DigraphToken.getLocation(), diag::err_missing_whitespace_digraph) 57ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << SelectDigraphErrorMessage(Kind) 58ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << FixItHint::CreateReplacement(Range, "< ::"); 59ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 60ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Update token information to reflect their change in token type. 61ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setKind(tok::coloncolon); 62ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setLocation(ColonToken.getLocation().getFileLocWithOffset(-1)); 63ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setLength(2); 64ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setKind(tok::less); 65ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setLength(1); 66ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 67ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Push new tokens back to token stream. 68ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(ColonToken); 69ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 70ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(DigraphToken); 71ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 72ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Parse global scope or nested-name-specifier if present. 742dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 752dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// Parses a C++ global scope specifier ('::') or nested-name-specifier (which 761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// may be preceded by '::'). Note that this routine will not parse ::new or 772dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// ::delete; it will just leave them in the token stream. 78eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 79eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 80eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 81eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 82eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 83eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 84eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 85eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 862dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier 'template'[opt] simple-template-id '::' 872dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 882dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param SS the scope specifier that will be set to the parsed 902dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier (or empty) 912dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ObjectType if this nested-name-specifier is being parsed following 932dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the "." or "->" of a member access expression, this parameter provides the 942dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// type of the object whose members are being accessed. 95eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 962dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \param EnteringContext whether we will be entering into the context of 972dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the nested-name-specifier after parsing it. 982dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 99d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param MayBePseudoDestructor When non-NULL, points to a flag that 100d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// indicates whether this nested-name-specifier may be part of a 101d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor name. In this case, the flag will be set false 102d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we don't actually end up parsing a destructor name. Moreorover, 103d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we do end up determining that we are parsing a destructor name, 104d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// the last component of the nested-name-specifier is not parsed as 105d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// part of the scope specifier. 106d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 107b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor/// member access expression, e.g., the \p T:: in \p p->T::m. 108b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor/// 1099ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// \returns true if there was an error parsing a scope specifier 110495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS, 111b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 112b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor bool EnteringContext, 1134147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet bool *MayBePseudoDestructor, 1144147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet bool IsTypename) { 1154bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 1167452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 1171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 118eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 119c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Actions.RestoreNestedNameSpecifierAnnotation(Tok.getAnnotationValue(), 120c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.getAnnotationRange(), 121c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor SS); 122eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 1239ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 124eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 125e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 12639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 12739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 1285b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 1295b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 1305b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 1315b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 1325b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 1331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 1352e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXGlobalScopeSpecifier(getCurScope(), ConsumeToken(), SS)) 1362e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor return true; 1372e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 13839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 139eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 140eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 141d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor bool CheckForDestructor = false; 142d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (MayBePseudoDestructor && *MayBePseudoDestructor) { 143d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CheckForDestructor = true; 144d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = false; 145d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 146d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 14739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 1482dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (HasScopeSpecifier) { 1492dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // C++ [basic.lookup.classref]p5: 1502dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If the qualified-id has the form 1513b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 1522dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // ::class-name-or-namespace-name::... 1533b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 1542dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // the class-name-or-namespace-name is looked up in global scope as a 1552dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // class-name or namespace-name. 1562dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // 1572dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // To implement this, we clear out the object type as soon as we've 1582dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // seen a leading '::' or part of a nested-name-specifier. 159b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ObjectType = ParsedType(); 16081b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor 16181b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor if (Tok.is(tok::code_completion)) { 16281b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // Code completion for a nested-name-specifier, where the code 16381b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // code completion token follows the '::'. 16423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteQualifiedId(getCurScope(), SS, EnteringContext); 165b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis SourceLocation ccLoc = ConsumeCodeCompletionToken(); 166b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Include code completion token into the range of the scope otherwise 167b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // when we try to annotate the scope tokens the dangling code completion 168b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // token will cause assertion in 169b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Preprocessor::AnnotatePreviousCachedTokens. 170b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis SS.setEndLoc(ccLoc); 17181b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor } 1722dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor } 1731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 17577cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // nested-name-specifier 'template'[opt] simple-template-id '::' 17677cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 17777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // Parse the optional 'template' keyword, then make sure we have 17877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // 'identifier <' after it. 17977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.is(tok::kw_template)) { 1802dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If we don't have a scope specifier or an object type, this isn't a 181eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // nested-name-specifier, since they aren't allowed to start with 182eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // 'template'. 1832dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (!HasScopeSpecifier && !ObjectType) 184eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman break; 185eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman 1867bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TentativeParsingAction TPA(*this); 18777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner SourceLocation TemplateKWLoc = ConsumeToken(); 188ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 189ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId TemplateName; 190ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Tok.is(tok::identifier)) { 191ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 1927bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 193ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 194ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else if (Tok.is(tok::kw_operator)) { 195ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, 1967bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName)) { 1977bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 198ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1997bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 200ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 201e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if (TemplateName.getKind() != UnqualifiedId::IK_OperatorFunctionId && 202e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt TemplateName.getKind() != UnqualifiedId::IK_LiteralOperatorId) { 203ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Diag(TemplateName.getSourceRange().getBegin(), 204ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor diag::err_id_after_template_in_nested_name_spec) 205ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor << TemplateName.getSourceRange(); 2067bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 207ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 208ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 209ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 2107bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 21177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 21277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2147bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // If the next token is not '<', we have a qualified-id that refers 2157bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // to a template name, such as T::template apply, but is not a 2167bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // template-id. 2177bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor if (Tok.isNot(tok::less)) { 2187bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 2197bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor break; 2207bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 2217bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor 2227bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // Commit to parsing the template-id. 2237bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 224d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateTy Template; 22523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (TemplateNameKind TNK = Actions.ActOnDependentTemplateName(getCurScope(), 226d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateKWLoc, 227d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor SS, 228d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, 229d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor ObjectType, 230d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, 231d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Template)) { 232059101f922de6eb765601459925f4c8914420b23Douglas Gregor if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateName, 233d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateKWLoc, false)) 234d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 235d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } else 2369ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 2371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner continue; 23977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 2401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 2421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We have 24339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 24439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // simple-template-id '::' 24539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 24639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // So we need to check whether the simple-template-id is of the 247c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // right kind (it should name a type or be dependent), and then 248c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // convert it into a type within the nested-name-specifier. 24925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 250d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde)) { 251d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 2529ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 253d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 254d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 2556cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor // Consume the template-id token. 2566cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor ConsumeToken(); 2576cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 2586cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 2596cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 2601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2616cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor if (!HasScopeSpecifier) 2626cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor HasScopeSpecifier = true; 2636cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 2646cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, 2656cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->getTemplateArgs(), 2666cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->NumArgs); 2676cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 2686cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), 2696cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor /*FIXME:*/SourceLocation(), 2706cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SS, 2716cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->Template, 2726cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->TemplateNameLoc, 2736cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->LAngleLoc, 2746cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateArgsPtr, 2756cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->RAngleLoc, 2766cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor CCLoc, 2776cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor EnteringContext)) { 2786cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation StartLoc 2796cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor = SS.getBeginLoc().isValid()? SS.getBeginLoc() 2806cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor : TemplateId->TemplateNameLoc; 2816cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SS.SetInvalid(SourceRange(StartLoc, CCLoc)); 28267b9e831943300ce54e564e601971828ce4def15Chris Lattner } 283eccce7e246a17e12a2afd6eabb9ac7c8d582db4eArgyrios Kyrtzidis 2846cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor continue; 28539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 28639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 2875c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 2885c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // The rest of the nested-name-specifier possibilities start with 2895c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // tok::identifier. 2905c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Tok.isNot(tok::identifier)) 2915c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner break; 2925c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 2935c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner IdentifierInfo &II = *Tok.getIdentifierInfo(); 2945c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 2955c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 2965c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '::' 2975c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // namespace-name '::' 2985c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier identifier '::' 2995c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Token Next = NextToken(); 30046646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 30146646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // If we get foo:bar, this is almost certainly a typo for foo::bar. Recover 30246646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // and emit a fixit hint for it. 303b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor if (Next.is(tok::colon) && !ColonIsSacred) { 3042e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.IsInvalidUnlessNestedName(getCurScope(), SS, II, 3052e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Tok.getLocation(), 3062e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Next.getLocation(), ObjectType, 307b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor EnteringContext) && 308b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // If the token after the colon isn't an identifier, it's still an 309b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // error, but they probably meant something else strange so don't 310b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // recover like this. 311b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor PP.LookAhead(1).is(tok::identifier)) { 312b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Diag(Next, diag::err_unexected_colon_in_nested_name_spec) 313849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateReplacement(Next.getLocation(), "::"); 314b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor 315b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // Recover as if the user wrote '::'. 316b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Next.setKind(tok::coloncolon); 317b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor } 31846646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner } 31946646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 3205c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::coloncolon)) { 32177549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde) && 32223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor !Actions.isNonTypeNestedNameSpecifier(getCurScope(), SS, Tok.getLocation(), 32377549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor II, ObjectType)) { 324d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 3259ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 326d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 327d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 3285c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have an identifier followed by a '::'. Lookup this name 3295c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // as the name in a nested-name-specifier. 3305c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation IdLoc = ConsumeToken(); 33146646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner assert((Tok.is(tok::coloncolon) || Tok.is(tok::colon)) && 33246646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner "NextToken() not working properly!"); 3335c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation CCLoc = ConsumeToken(); 3341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3352e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor HasScopeSpecifier = true; 3362e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), II, IdLoc, CCLoc, 3372e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor ObjectType, EnteringContext, SS)) 3382e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor SS.SetInvalid(SourceRange(IdLoc, CCLoc)); 3392e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 3405c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 3415c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 3421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 343ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Check for '<::' which should be '< ::' instead of '[:' when following 344ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // a template name. 345ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (Next.is(tok::l_square) && Next.getLength() == 2) { 346ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Token SecondToken = GetLookAheadToken(2); 347ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (SecondToken.is(tok::colon) && 348ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith AreTokensAdjacent(PP, Next, SecondToken)) { 349ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith TemplateTy Template; 350ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith UnqualifiedId TemplateName; 351ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith TemplateName.setIdentifier(&II, Tok.getLocation()); 352ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith bool MemberOfUnknownSpecialization; 353ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (Actions.isTemplateName(getCurScope(), SS, 354ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith /*hasTemplateKeyword=*/false, 355ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith TemplateName, 356ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ObjectType, 357ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith EnteringContext, 358ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Template, 359ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith MemberOfUnknownSpecialization)) { 360ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith FixDigraph(*this, PP, Next, SecondToken, tok::kw_template, 361ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith /*AtDigraph*/false); 362ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith } 363ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith } 364ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith } 365ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 3665c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 3675c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '<' 3685c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::less)) { 3695c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner TemplateTy Template; 370014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 371014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(&II, Tok.getLocation()); 3721fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 37323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (TemplateNameKind TNK = Actions.isTemplateName(getCurScope(), SS, 3747c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, 375014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName, 3762dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType, 377495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor EnteringContext, 3781fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Template, 3791fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization)) { 3805c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have found a template name, so annotate this this token 3815c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // with a template-id annotation. We do not permit the 3825c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // template-id to be translated into a type annotation, 3835c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // because some clients (e.g., the parsing of class template 3845c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // specializations) still want to see the original template-id 3855c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // token. 386ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 387059101f922de6eb765601459925f4c8914420b23Douglas Gregor if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateName, 388ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation(), false)) 3899ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 3905c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 391d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor } 392d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 393d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor if (MemberOfUnknownSpecialization && (ObjectType || SS.isSet()) && 3944147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet (IsTypename || IsTemplateArgumentList(1))) { 395d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // We have something like t::getAs<T>, where getAs is a 396d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // member of an unknown specialization. However, this will only 397d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 398d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // before 'getAs' and treat this as a dependent template name. 3994147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet unsigned DiagID = diag::err_missing_dependent_template_keyword; 4004147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet if (getLang().Microsoft) 401cf320c6388c90f1938c264e87d77a0e43946e2c3Francois Pichet DiagID = diag::warn_missing_dependent_template_keyword; 4024147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 4034147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet Diag(Tok.getLocation(), DiagID) 404d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << II.getName() 405d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << FixItHint::CreateInsertion(Tok.getLocation(), "template "); 406d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 407d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TemplateNameKind TNK 40823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor = Actions.ActOnDependentTemplateName(getCurScope(), 409d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Tok.getLocation(), SS, 410d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, ObjectType, 411d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template)) { 412d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor // Consume the identifier. 413d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor ConsumeToken(); 414059101f922de6eb765601459925f4c8914420b23Douglas Gregor if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateName, 415d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor SourceLocation(), false)) 416d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 417d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } 418d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor else 419d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor return true; 420d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor 421d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor continue; 4225c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 4235c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 4245c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 42539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 42639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 42739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 42839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 4291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 430d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Even if we didn't see any pieces of a nested-name-specifier, we 431d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // still check whether there is a tilde in this position, which 432d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // indicates a potential pseudo-destructor. 433d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && Tok.is(tok::tilde)) 434d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 435d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 4369ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 437eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 438eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 439eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 440eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 441eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 442eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 443eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 444eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 445eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 446eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 447eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 448eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 449edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor/// '::' template-id 450eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 451eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 452eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 453eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 454eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 455eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 456eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 457eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 458eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 459eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 460eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 461eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 462eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 463eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 464eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 465eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 466eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 467eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 468eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 469eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 470eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 471eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 472eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 473eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 474eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 475eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 476ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 477ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 478ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 479ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 480ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 48160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 482eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 483eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 484eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 485eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 486eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 487b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParseOptionalCXXScopeSpecifier(SS, ParsedType(), false); 48802a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor 48902a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor UnqualifiedId Name; 49002a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor if (ParseUnqualifiedId(SS, 49102a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor /*EnteringContext=*/false, 49202a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor /*AllowDestructorName=*/false, 49302a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor /*AllowConstructorName=*/false, 494b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 49502a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor Name)) 49602a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor return ExprError(); 497b681b61fea36618778b8030360e90e3f4641233bJohn McCall 498b681b61fea36618778b8030360e90e3f4641233bJohn McCall // This is only the direct operand of an & operator if it is not 499b681b61fea36618778b8030360e90e3f4641233bJohn McCall // followed by a postfix-expression suffix. 5009c72c6088d591ace8503b842d39448c2040f3033John McCall if (isAddressOfOperand && isPostfixExpressionSuffixStart()) 5019c72c6088d591ace8503b842d39448c2040f3033John McCall isAddressOfOperand = false; 50202a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor 50323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor return Actions.ActOnIdExpression(getCurScope(), SS, Name, Tok.is(tok::l_paren), 50402a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor isAddressOfOperand); 50502a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor 506eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 507eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 508ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpression - Parse a C++0x lambda expression. 509ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 510ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-expression: 511ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer lambda-declarator[opt] compound-statement 512ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 513ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer: 514ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '[' lambda-capture[opt] ']' 515ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 516ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-capture: 517ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default 518ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list 519ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default ',' capture-list 520ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 521ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default: 522ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' 523ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '=' 524ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 525ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list: 526ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture 527ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list ',' capture 528ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 529ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture: 530ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// identifier 531ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' identifier 532ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'this' 533ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 534ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-declarator: 535ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '(' parameter-declaration-clause ')' attribute-specifier[opt] 536ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'mutable'[opt] exception-specification[opt] 537ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// trailing-return-type[opt] 538ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 539ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpression() { 540ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-introducer. 541ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 542ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 543ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::Optional<unsigned> DiagID(ParseLambdaIntroducer(Intro)); 544ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 545ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, DiagID.getValue()); 546ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SkipUntil(tok::r_square); 547ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 548ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 549ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 550ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 551ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 552ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// TryParseLambdaExpression - Use lookahead and potentially tentative 553ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// parsing to determine if we are looking at a C++0x lambda expression, and parse 554ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// it if we are. 555ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 556ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// If we are not looking at a lambda expression, returns ExprError(). 557ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::TryParseLambdaExpression() { 558ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor assert(getLang().CPlusPlus0x 559ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && Tok.is(tok::l_square) 560ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && "Not at the start of a possible lambda expression."); 561ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 562ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor const Token Next = NextToken(), After = GetLookAheadToken(2); 563ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 564ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // If lookahead indicates this is a lambda... 565ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::r_square) || // [] 566ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Next.is(tok::equal) || // [= 567ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::amp) && // [&] or [&, 568ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (After.is(tok::r_square) || 569ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::comma))) || 570ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::identifier) && // [identifier] 571ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::r_square))) { 572ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpression(); 573ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 574ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 575ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // If lookahead indicates this is an Objective-C message... 576ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::identifier) && After.is(tok::identifier)) { 577ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ExprError(); 578ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 579ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 580ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 581ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (TryParseLambdaIntroducer(Intro)) 582ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ExprError(); 583ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 584ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 585ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 586ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpression - Parse a lambda introducer. 587ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 588ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// Returns a DiagnosticID if it hit something unexpected. 589ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregorllvm::Optional<unsigned> Parser::ParseLambdaIntroducer(LambdaIntroducer &Intro) { 590ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor typedef llvm::Optional<unsigned> DiagResult; 591ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 592ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor assert(Tok.is(tok::l_square) && "Lambda expressions begin with '['."); 593ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Range.setBegin(ConsumeBracket()); 594ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 595ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor bool first = true; 596ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 597ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture-default. 598ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp) && 599ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (NextToken().is(tok::comma) || NextToken().is(tok::r_square))) { 600ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByRef; 601ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 602ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 603ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::equal)) { 604ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByCopy; 605ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 606ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 607ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 608ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 609ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor while (Tok.isNot(tok::r_square)) { 610ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (!first) { 611ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.isNot(tok::comma)) 612ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_comma_or_rsquare); 613ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 614ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 615ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 616ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 617ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 618ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture. 619ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaCaptureKind Kind = LCK_ByCopy; 620ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation Loc; 621ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor IdentifierInfo* Id = 0; 622ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 623ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::kw_this)) { 624ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_This; 625ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 626ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 627ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp)) { 628ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_ByRef; 629ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 630ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 631ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 632ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::identifier)) { 633ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Id = Tok.getIdentifierInfo(); 634ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 635ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::kw_this)) { 636ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // FIXME: If we want to suggest a fixit here, will need to return more 637ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // than just DiagnosticID. Perhaps full DiagnosticBuilder that can be 638ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Clear()ed to prevent emission in case of tentative parsing? 639ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_this_captured_by_reference); 640ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 641ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_capture); 642ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 643ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 644ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 645ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.addCapture(Kind, Loc, Id); 646ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 647ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 648ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Range.setEnd(MatchRHSPunctuation(tok::r_square, 649ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Range.getBegin())); 650ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 651ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(); 652ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 653ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 654ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// TryParseLambdaExpression - Tentatively parse a lambda introducer. 655ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 656ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// Returns true if it hit something unexpected. 657ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregorbool Parser::TryParseLambdaIntroducer(LambdaIntroducer &Intro) { 658ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TentativeParsingAction PA(*this); 659ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 660ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::Optional<unsigned> DiagID(ParseLambdaIntroducer(Intro)); 661ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 662ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 663ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Revert(); 664ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return true; 665ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 666ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 667ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Commit(); 668ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return false; 669ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 670ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 671ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpressionAfterIntroducer - Parse the rest of a lambda 672ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// expression. 673ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpressionAfterIntroducer( 674ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer &Intro) { 675ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-declarator[opt]. 676ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclSpec DS(AttrFactory); 677ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Declarator D(DS, Declarator::PrototypeContext); 678ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 679ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::l_paren)) { 680ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseScope PrototypeScope(this, 681ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::FunctionPrototypeScope | 682ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::DeclScope); 683ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 684ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation DeclLoc = ConsumeParen(), DeclEndLoc; 685ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 686ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse parameter-declaration-clause. 687ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParsedAttributes Attr(AttrFactory); 688ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::SmallVector<DeclaratorChunk::ParamInfo, 16> ParamInfo; 689ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation EllipsisLoc; 690ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 691ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.isNot(tok::r_paren)) 692ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseParameterDeclarationClause(D, Attr, ParamInfo, EllipsisLoc); 693ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 694ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = MatchRHSPunctuation(tok::r_paren, DeclLoc); 695ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 696ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse 'mutable'[opt]. 697ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation MutableLoc; 698ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::kw_mutable)) { 699ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MutableLoc = ConsumeToken(); 700ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = MutableLoc; 701ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 702ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 703ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse exception-specification[opt]. 704ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExceptionSpecificationType ESpecType = EST_None; 705ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange ESpecRange; 706ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::SmallVector<ParsedType, 2> DynamicExceptions; 707ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::SmallVector<SourceRange, 2> DynamicExceptionRanges; 708ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExprResult NoexceptExpr; 709ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ESpecType = MaybeParseExceptionSpecification(ESpecRange, 710ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions, 711ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptionRanges, 712ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr); 713ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 714ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (ESpecType != EST_None) 715ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = ESpecRange.getEnd(); 716ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 717ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse attribute-specifier[opt]. 718ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MaybeParseCXX0XAttributes(Attr, &DeclEndLoc); 719ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 720ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse trailing-return-type[opt]. 721ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParsedType TrailingReturnType; 722ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::arrow)) { 723ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange Range; 724ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TrailingReturnType = ParseTrailingReturnType(Range).get(); 725ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Range.getEnd().isValid()) 726ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = Range.getEnd(); 727ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 728ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 729ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PrototypeScope.Exit(); 730ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 731ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor D.AddTypeInfo(DeclaratorChunk::getFunction(/*hasProto=*/true, 732ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor /*isVariadic=*/EllipsisLoc.isValid(), 733ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor EllipsisLoc, 734ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParamInfo.data(), ParamInfo.size(), 735ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DS.getTypeQualifiers(), 736ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor /*RefQualifierIsLValueRef=*/true, 737ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor /*RefQualifierLoc=*/SourceLocation(), 738ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MutableLoc, 739ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ESpecType, ESpecRange.getBegin(), 740ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.data(), 741ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptionRanges.data(), 742ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.size(), 743ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr.isUsable() ? 744ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr.get() : 0, 745ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclLoc, DeclEndLoc, D, 746ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TrailingReturnType), 747ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Attr, DeclEndLoc); 748ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 749ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 750ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse compound-statement. 751ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::l_brace)) { 752ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // FIXME: Rename BlockScope -> ClosureScope if we decide to continue using 753ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // it. 754ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseScope BodyScope(this, Scope::BlockScope | Scope::FnScope | 755ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::BreakScope | Scope::ContinueScope | 756ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::DeclScope); 757ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 758ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor StmtResult Stmt(ParseCompoundStatementBody()); 759ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 760ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor BodyScope.Exit(); 761ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 762ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, diag::err_expected_lambda_body); 763ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 764ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 765ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ExprEmpty(); 766ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 767ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 7705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 7735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 7745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 77760d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXCasts() { 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown C++ cast!"); abort(); 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 7915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 792ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Check for "<::" which is parsed as "[:". If found, fix token stream, 793ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // diagnose error, suggest fix, and recover parsing. 794ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Token Next = NextToken(); 795ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (Tok.is(tok::l_square) && Tok.getLength() == 2 && Next.is(tok::colon) && 796ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith AreTokensAdjacent(PP, Tok, Next)) 797ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith FixDigraph(*this, PP, Tok, Next, Kind, /*AtDigraph*/true); 798ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 80020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 8015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 80231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the common declaration-specifiers piece. 80331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 80431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 80531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 80631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the abstract-declarator, if present. 80731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 80831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 80931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 8105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8121ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 81320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LParenLoc = Tok.getLocation(), RParenLoc; 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 81721e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, CastName)) 81821e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 82060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result = ParseExpression(); 8211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82221e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 82327591ff4fc64600fd67c5d81899e3efe5ef41a80Douglas Gregor RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 82531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (!Result.isInvalid() && !DeclaratorInfo.isInvalidType()) 82649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 82731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis LAngleBracketLoc, DeclaratorInfo, 828809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 8299ae2f076ca5ab1feb3ba95629099ec2319833701John McCall LParenLoc, Result.take(), RParenLoc); 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 83120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 834c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 835c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 836c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 837c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 838c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 839c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 84060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXTypeid() { 841c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 842c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 843c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 844c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation LParenLoc = Tok.getLocation(); 845c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation RParenLoc; 846c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 847c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 848c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, 849c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl "typeid")) 85020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 851c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 85260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result; 853c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 854c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 855809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 856c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 857c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 8584eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 859c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 8604eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (Ty.isInvalid() || RParenLoc.isInvalid()) 86120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 862c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 863c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 864b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Ty.get().getAsOpaquePtr(), RParenLoc); 865c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 866e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // C++0x [expr.typeid]p3: 8671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When typeid is applied to an expression other than an lvalue of a 8681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // polymorphic class type [...] The expression is an unevaluated 869e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // operand (Clause 5). 870e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // 8711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Note that we can't tell whether the expression is an lvalue of a 872e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // polymorphic class type until after we've parsed the expression, so 873ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor // we the expression is potentially potentially evaluated. 874ac7610dad6653bad02dd42de198ca358b6fb1f1dDouglas Gregor EnterExpressionEvaluationContext Unevaluated(Actions, 875f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema::PotentiallyPotentiallyEvaluated); 876c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 877c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 878c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 8790e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 880c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SkipUntil(tok::r_paren); 881c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 8824eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 8834eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (RParenLoc.isInvalid()) 8844eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor return ExprError(); 885fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor 886fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor // If we are a foo<int> that identifies a single function, resolve it now... 887fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor Expr* e = Result.get(); 888fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor if (e->getType() == Actions.Context.OverloadTy) { 889fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor ExprResult er = 890fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor Actions.ResolveAndFixSingleFunctionTemplateSpecialization(e); 891fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor if (er.isUsable()) 892fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor Result = er.release(); 893fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor } 894c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 895effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 896c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 897c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 898c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 89920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 900c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 901c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 90201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// ParseCXXUuidof - This handles the Microsoft C++ __uuidof expression. 90301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 90401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' expression ')' 90501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' type-id ')' 90601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 90701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois PichetExprResult Parser::ParseCXXUuidof() { 90801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet assert(Tok.is(tok::kw___uuidof) && "Not '__uuidof'!"); 90901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 91001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation OpLoc = ConsumeToken(); 91101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation LParenLoc = Tok.getLocation(); 91201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation RParenLoc; 91301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 91401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // __uuidof expressions are always parenthesized. 91501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen_after, 91601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet "__uuidof")) 91701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 91801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 91901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet ExprResult Result; 92001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 92101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (isTypeIdInParens()) { 92201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet TypeResult Ty = ParseTypeName(); 92301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 92401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 92501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 92601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 92701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Ty.isInvalid()) 92801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 92901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 93001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = Actions.ActOnCXXUuidof(OpLoc, LParenLoc, /*isType=*/true, 93101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Ty.get().getAsOpaquePtr(), RParenLoc); 93201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } else { 93301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); 93401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = ParseExpression(); 93501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 93601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 93701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Result.isInvalid()) 93801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SkipUntil(tok::r_paren); 93901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet else { 94001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 94101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 94201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = Actions.ActOnCXXUuidof(OpLoc, LParenLoc, /*isType=*/false, 94301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result.release(), RParenLoc); 94401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 94501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 94601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 94701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return move(Result); 94801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet} 94901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 950d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \brief Parse a C++ pseudo-destructor expression after the base, 951d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// . or -> operator, and nested-name-specifier have already been 952d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// parsed. 953d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 954d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression: [C++ 5.2] 955d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression . pseudo-destructor-name 956d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression -> pseudo-destructor-name 957d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 958d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor-name: 959d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] type-name :: ~type-name 960d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier template simple-template-id :: 961d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ~type-name 962d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] ~type-name 963d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 96460d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 965d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas GregorParser::ParseCXXPseudoDestructor(ExprArg Base, SourceLocation OpLoc, 966d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor tok::TokenKind OpKind, 967d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CXXScopeSpec &SS, 968b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType) { 969d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // We're parsing either a pseudo-destructor-name or a dependent 970d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // member access that has the same form as a 971d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // pseudo-destructor-name. We parse both in the same way and let 972d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // the action model sort them out. 973d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // 974d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Note that the ::[opt] nested-name-specifier[opt] has already 975d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been parsed, and if there was a simple-template-id, it has 976d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been coalesced into a template-id annotation token. 977d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId FirstTypeName; 978d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation CCLoc; 979d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::identifier)) { 980d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 981d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 982d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 983d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 984d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else if (Tok.is(tok::annot_template_id)) { 985d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setTemplateId( 986d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor (TemplateIdAnnotation *)Tok.getAnnotationValue()); 987d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 988d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 989d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 990d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else { 991d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(0, SourceLocation()); 992d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 993d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 994d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the tilde. 995d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::tilde) && "ParseOptionalCXXScopeSpecifier fail"); 996d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 997d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (!Tok.is(tok::identifier)) { 998d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 999d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1000d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 1001d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1002d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the second type. 1003d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId SecondTypeName; 1004d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor IdentifierInfo *Name = Tok.getIdentifierInfo(); 1005d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation NameLoc = ConsumeToken(); 1006d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SecondTypeName.setIdentifier(Name, NameLoc); 1007d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1008d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // If there is a '<', the second type name is a template-id. Parse 1009d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // it as such. 1010d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::less) && 1011d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ParseUnqualifiedIdTemplateId(SS, Name, NameLoc, false, ObjectType, 10120278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor SecondTypeName, /*AssumeTemplateName=*/true, 10130278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor /*TemplateKWLoc*/SourceLocation())) 1014d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1015d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 10169ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, 10179ae2f076ca5ab1feb3ba95629099ec2319833701John McCall OpLoc, OpKind, 1018d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SS, FirstTypeName, CCLoc, 1019d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor TildeLoc, SecondTypeName, 1020d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Tok.is(tok::l_paren)); 1021d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor} 1022d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 102860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXBoolLiteral() { 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 1030f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 103250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 103350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 103450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 103550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 103650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 103760d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseThrowExpression() { 103850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 103950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 104020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 10412a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 10422a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 10432a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 10442a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 10452a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 10462a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 10472a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 10482a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 10492a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 10502a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 1051bca01b46850f867b2f4137f25c882022b58f8471Douglas Gregor return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, 0); 105250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 10532a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 105460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Expr(ParseAssignmentExpression()); 105520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl if (Expr.isInvalid()) return move(Expr); 1056bca01b46850f867b2f4137f25c882022b58f8471Douglas Gregor return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, Expr.take()); 10572a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 105850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 10594cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 10604cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 10614cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 10624cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 10634cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 10644cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 106560d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXThis() { 10664cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 10674cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 1068f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 10694cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 1070987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1071987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 1072987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 1073987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 1074987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 1075dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// See [C++ 5.2.3]. 1076987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1077987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 1078dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// simple-type-specifier '(' expression-list[opt] ')' 1079dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] simple-type-specifier braced-init-list 1080dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// typename-specifier '(' expression-list[opt] ')' 1081dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] typename-specifier braced-init-list 1082987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 108360d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 108420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 1085987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 1086b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = Actions.ActOnTypeName(getCurScope(), DeclaratorInfo).get(); 1087987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1088dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Tok.is(tok::l_paren) || 1089dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl (getLang().CPlusPlus0x && Tok.is(tok::l_brace))) 1090dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl && "Expected '(' or '{'!"); 1091bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor 1092dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.is(tok::l_brace)) { 1093987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1094dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // FIXME: Convert to a proper type construct expression. 1095dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ParseBraceInitializer(); 1096987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1097dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } else { 1098dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl GreaterThanIsOperatorScope G(GreaterThanIsOperator, true); 1099dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 1100dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl SourceLocation LParenLoc = ConsumeParen(); 1101dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 1102dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl ExprVector Exprs(Actions); 1103dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl CommaLocsTy CommaLocs; 1104dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 1105dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.isNot(tok::r_paren)) { 1106dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (ParseExpressionList(Exprs, CommaLocs)) { 1107dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl SkipUntil(tok::r_paren); 1108dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1109dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1110987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1111987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1112dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // Match the ')'. 1113dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 1114987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1115dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // TypeRep could be null, if it references an invalid typedef. 1116dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (!TypeRep) 1117dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1118ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl 1119dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 1120dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl "Unexpected number of commas!"); 1121dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return Actions.ActOnCXXTypeConstructExpr(TypeRep, LParenLoc, move_arg(Exprs), 1122dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl RParenLoc); 1123dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1124987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 1125987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 112699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// ParseCXXCondition - if/switch/while condition expression. 112771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 112871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 112971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 113071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 113171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 113271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 113371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 113499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \param ExprResult if the condition was parsed as an expression, the 113599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// parsed expression. 113699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 113799e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \param DeclResult if the condition was parsed as a declaration, the 113899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// parsed declaration. 113999e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 1140586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param Loc The location of the start of the statement that requires this 1141586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// condition, e.g., the "for" in a for loop. 1142586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 1143586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param ConvertToBoolean Whether the condition expression should be 1144586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// converted to a boolean value. 1145586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 114699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \returns true if there was a parsing, false otherwise. 114760d7b3a319d84d688752be3870615ac0f111fb16John McCallbool Parser::ParseCXXCondition(ExprResult &ExprOut, 114860d7b3a319d84d688752be3870615ac0f111fb16John McCall Decl *&DeclOut, 1149586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor SourceLocation Loc, 1150586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor bool ConvertToBoolean) { 115101dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor if (Tok.is(tok::code_completion)) { 1152f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Condition); 1153dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor ConsumeCodeCompletionToken(); 115401dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor } 115501dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor 115699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor if (!isCXXConditionDeclaration()) { 1157586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // Parse the expression. 115860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ParseExpression(); // expression 115960d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = 0; 116060d7b3a319d84d688752be3870615ac0f111fb16John McCall if (ExprOut.isInvalid()) 1161586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor return true; 1162586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 1163586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // If required, convert to a boolean value. 1164586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor if (ConvertToBoolean) 116560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut 116660d7b3a319d84d688752be3870615ac0f111fb16John McCall = Actions.ActOnBooleanCondition(getCurScope(), Loc, ExprOut.get()); 116760d7b3a319d84d688752be3870615ac0f111fb16John McCall return ExprOut.isInvalid(); 116899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 116971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 117071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 11710b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 117271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 117371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 117471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 117571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 117671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 117771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 117871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 117971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 1180ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 118160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult AsmLabel(ParseSimpleAsm(&Loc)); 11820e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 118371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 118499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return true; 118571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 1186effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 1187ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 118871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 118971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 119071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 11917f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(DeclaratorInfo); 119271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 119399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // Type-check the declaration itself. 119460d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclResult Dcl = Actions.ActOnCXXConditionDeclaration(getCurScope(), 11957f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DeclaratorInfo); 119660d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = Dcl.get(); 119760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ExprError(); 1198a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 119971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 1200a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis if (isTokenEqualOrMistypedEqualEqual( 1201a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis diag::err_invalid_equalequal_after_declarator)) { 1202dec0984fce504a39a7f085774fb67cfd9957be58Jeffrey Yasskin ConsumeToken(); 120360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult AssignExpr(ParseAssignmentExpression()); 120499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor if (!AssignExpr.isInvalid()) 120534b41d939a1328f484511c6002ba2456db879a29Richard Smith Actions.AddInitializerToDecl(DeclOut, AssignExpr.take(), false, 120634b41d939a1328f484511c6002ba2456db879a29Richard Smith DS.getTypeSpecType() == DeclSpec::TST_auto); 120799e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } else { 120899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // FIXME: C++0x allows a braced-init-list 120999e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor Diag(Tok, diag::err_expected_equal_after_declarator); 121099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 121199e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor 1212586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // FIXME: Build a reference to this declaration? Convert it to bool? 1213586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // (This is currently handled by Sema). 1214483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith 1215483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith Actions.FinalizeDeclaration(DeclOut); 1216586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 121799e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return false; 121871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 121971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 12206aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// \brief Determine whether the current token starts a C++ 12216aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// simple-type-specifier. 12226aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregorbool Parser::isCXXSimpleTypeSpecifier() const { 12236aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor switch (Tok.getKind()) { 12246aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::annot_typename: 12256aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_short: 12266aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_long: 1227338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet case tok::kw___int64: 12286aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_signed: 12296aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_unsigned: 12306aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_void: 12316aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_char: 12326aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_int: 12336aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_float: 12346aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_double: 12356aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_wchar_t: 12366aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_char16_t: 12376aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_char32_t: 12386aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_bool: 1239d9d75e57dfa22366c0379c92beac1db82db34e9aDouglas Gregor case tok::kw_decltype: 12406aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_typeof: 1241db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt case tok::kw___underlying_type: 12426aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor return true; 12436aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 12446aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor default: 12456aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor break; 12466aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor } 12476aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 12486aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor return false; 12496aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor} 12506aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 1251987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 1252987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 1253987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 1254987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1255987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 1256eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 1257987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 1258987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 1259987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 1260987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 1261987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 1262987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 1263987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 1264987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 1265987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 1266987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 1267987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 1268987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 1269987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 1270987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 1271987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1272987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 1273987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 1274987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 1275987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 1276987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1277987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 1278987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 1279987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 1280fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 1281987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 12821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1283987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 128455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 128555a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 128655a7cefc846765ac7d142a63f773747a20518d71Chris Lattner assert(0 && "Annotation token should already be formed!"); 12871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: 1288987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(0 && "Not a simple-type-specifier token!"); 1289987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis abort(); 129055a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 1291987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 1292b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 12936952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (getTypeAnnotation(Tok)) 12946952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, DiagID, 12956952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor getTypeAnnotation(Tok)); 12966952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor else 12976952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecError(); 12989bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 12999bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 13009bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ConsumeToken(); 13019bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 13029bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C supports syntax of the form 'id<proto1,proto2>' where 'id' 13039bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // is a specific typedef and 'itf<proto1,proto2>' where 'itf' is an 13049bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C interface. If we don't have Objective-C or a '<', this is 13059bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // just a normal reference to a typedef name. 13069bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor if (Tok.is(tok::less) && getLang().ObjC1) 13079bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ParseObjCProtocolQualifiers(DS); 13089bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 13099bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.Finish(Diags, PP); 13109bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor return; 1311987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 13121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1313987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 1314987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 1315fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec, DiagID); 1316987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1317987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 1318fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec, DiagID); 1319338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet break; 1320338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet case tok::kw___int64: 1321338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet DS.SetTypeSpecWidth(DeclSpec::TSW_longlong, Loc, PrevSpec, DiagID); 1322987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1323987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 1324fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec, DiagID); 1325987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1326987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 1327fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec, DiagID); 1328987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1329987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 1330fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec, DiagID); 1331987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1332987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 1333fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec, DiagID); 1334987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1335987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 1336fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec, DiagID); 1337987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1338987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 1339fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec, DiagID); 1340987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1341987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 1342fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec, DiagID); 1343987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1344987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 1345fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec, DiagID); 1346987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1347f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char16_t: 1348fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char16, Loc, PrevSpec, DiagID); 1349f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1350f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char32_t: 1351fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char32, Loc, PrevSpec, DiagID); 1352f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1353987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 1354fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec, DiagID); 1355987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 13561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13576aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor // FIXME: C++0x decltype support. 1358987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 1359987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 1360987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 13619b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 1362987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 1363987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1364b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 1365eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 1366eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 1367eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 1368987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 13699b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 1370987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 13711cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 13722f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 13732f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 13742f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 13752f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 13762f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 13772f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 13782f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 13792f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 13802f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 13812f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 13822f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 13832f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 13842f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DS.SetRangeStart(Tok.getLocation()); 13852f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor const char *PrevSpec = 0; 1386fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 1387fec54013fcd0eb72642741584ca04c1bc292bef8John McCall bool isInvalid = 0; 13882f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 13892f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse one or more of the type specifiers. 1390d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl if (!ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec, DiagID, 1391d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl ParsedTemplateInfo(), /*SuppressDeclarations*/true)) { 13929fa8e569407e02148888136609431a3fe083096dNick Lewycky Diag(Tok, diag::err_expected_type); 13932f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return true; 13942f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor } 13951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1396d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl while (ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec, DiagID, 1397d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl ParsedTemplateInfo(), /*SuppressDeclarations*/true)) 1398d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl {} 13992f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 1400396a9f235e160093b5f803f7a6a18fad7b68bdbeDouglas Gregor DS.Finish(Diags, PP); 14012f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 14022f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 14032f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 14043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \brief Finish parsing a C++ unqualified-id that is a template-id of 14053f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// some form. 14063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 14073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// This routine is invoked when a '<' is encountered after an identifier or 14083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id is parsed by \c ParseUnqualifiedId() to determine 14093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// whether the unqualified-id is actually a template-id. This routine will 14103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// then parse the template arguments and form the appropriate template-id to 14113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// return to the caller. 14123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 14133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param SS the nested-name-specifier that precedes this template-id, if 14143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// we're actually parsing a qualified-id. 14153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 14163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Name for constructor and destructor names, this is the actual 14173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// identifier that may be a template-name. 14183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 14193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param NameLoc the location of the class-name in a constructor or 14203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// destructor. 14213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 14223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we're entering the scope of the 14233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 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 Id as input, describes the template-name or operator-function-id 14293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// that precedes the '<'. If template arguments were parsed successfully, 14303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// will be updated with the template-id. 14313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1432d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param AssumeTemplateId When true, this routine will assume that the name 1433d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// refers to a template without performing name lookup to verify. 1434d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 14353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if a parse error occurred, false otherwise. 14363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedIdTemplateId(CXXScopeSpec &SS, 14373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Name, 14383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation NameLoc, 14393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool EnteringContext, 1440b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1441d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId &Id, 14420278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor bool AssumeTemplateId, 14430278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor SourceLocation TemplateKWLoc) { 14440278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor assert((AssumeTemplateId || Tok.is(tok::less)) && 14450278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor "Expected '<' to finish parsing a template-id"); 14463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 14473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateTy Template; 14483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateNameKind TNK = TNK_Non_template; 14493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (Id.getKind()) { 14503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 1451014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 1452e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 1453d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (AssumeTemplateId) { 145423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor TNK = Actions.ActOnDependentTemplateName(getCurScope(), TemplateKWLoc, SS, 1455d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Id, ObjectType, EnteringContext, 1456d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Template); 1457d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 1458d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 14591fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } else { 14601fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 14617c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, 14627c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateKWLoc.isValid(), Id, 14637c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara ObjectType, EnteringContext, Template, 14641fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 14651fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor 14661fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (TNK == TNK_Non_template && MemberOfUnknownSpecialization && 14671fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor ObjectType && IsTemplateArgumentList()) { 14681fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // We have something like t->getAs<T>(), where getAs is a 14691fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // member of an unknown specialization. However, this will only 14701fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 14711fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // before 'getAs' and treat this as a dependent template name. 14721fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor std::string Name; 14731fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) 14741fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = Id.Identifier->getName(); 14751fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else { 14761fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = "operator "; 14771fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_OperatorFunctionId) 14781fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += getOperatorSpelling(Id.OperatorFunctionId.Operator); 14791fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else 14801fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += Id.Identifier->getName(); 14811fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 14821fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Diag(Id.StartLocation, diag::err_missing_dependent_template_keyword) 14831fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << Name 14841fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << FixItHint::CreateInsertion(Id.StartLocation, "template "); 148523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor TNK = Actions.ActOnDependentTemplateName(getCurScope(), TemplateKWLoc, 1486d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor SS, Id, ObjectType, 1487d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template); 1488d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 14891fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor return true; 14901fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 14911fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 14923f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 14933f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1494014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_ConstructorName: { 1495014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 14961fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1497014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 14987c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 14997c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 15001fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 15011fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 15023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1503014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 15043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1505014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_DestructorName: { 1506014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 15071fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1508014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 15092d1c21414199a7452f122598189363a3922605b1Douglas Gregor if (ObjectType) { 151023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor TNK = Actions.ActOnDependentTemplateName(getCurScope(), TemplateKWLoc, SS, 1511d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, ObjectType, 1512d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template); 1513d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 15142d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 15152d1c21414199a7452f122598189363a3922605b1Douglas Gregor } else { 15167c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 15177c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 15181fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 15191fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 15202d1c21414199a7452f122598189363a3922605b1Douglas Gregor 1521b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (TNK == TNK_Non_template && !Id.DestructorName.get()) { 1522124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(NameLoc, diag::err_destructor_template_id) 1523124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor << Name << SS.getRange(); 15242d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 15252d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 15262d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 15273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1528014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 15293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor default: 15313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 15323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 15333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (TNK == TNK_Non_template) 15353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 15363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the enclosed template argument list. 15383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation LAngleLoc, RAngleLoc; 15393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgList TemplateArgs; 15400278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (Tok.is(tok::less) && 15410278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor ParseTemplateIdAfterTemplateName(Template, Id.StartLocation, 1542059101f922de6eb765601459925f4c8914420b23Douglas Gregor SS, true, LAngleLoc, 15433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgs, 15443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor RAngleLoc)) 15453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 15463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier || 1548e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_OperatorFunctionId || 1549e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_LiteralOperatorId) { 15503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Form a parsed representation of the template-id to be stored in the 15513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // UnqualifiedId. 15523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateIdAnnotation *TemplateId 15533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor = TemplateIdAnnotation::Allocate(TemplateArgs.size()); 15543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) { 15563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Name = Id.Identifier; 1557014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = OO_None; 15583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 15593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 1560014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Name = 0; 1561014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = Id.OperatorFunctionId.Operator; 1562014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 15633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 15643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1565059101f922de6eb765601459925f4c8914420b23Douglas Gregor TemplateId->SS = SS; 15662b5289b6fd7e3d9899868410a498c081c9595662John McCall TemplateId->Template = Template; 15673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Kind = TNK; 15683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->LAngleLoc = LAngleLoc; 15693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->RAngleLoc = RAngleLoc; 1570314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor ParsedTemplateArgument *Args = TemplateId->getTemplateArgs(); 15713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor for (unsigned Arg = 0, ArgEnd = TemplateArgs.size(); 1572314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor Arg != ArgEnd; ++Arg) 15733f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Args[Arg] = TemplateArgs[Arg]; 15743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setTemplateId(TemplateId); 15763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 15773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 15783f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15793f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Bundle the template arguments together. 15803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, TemplateArgs.data(), 15813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgs.size()); 15823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Constructor and destructor names. 1584f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Type 1585059101f922de6eb765601459925f4c8914420b23Douglas Gregor = Actions.ActOnTemplateIdType(SS, Template, NameLoc, 15863f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor LAngleLoc, TemplateArgsPtr, 15873f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor RAngleLoc); 15883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Type.isInvalid()) 15893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 15903f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15913f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_ConstructorName) 15923f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setConstructorName(Type.get(), NameLoc, RAngleLoc); 15933f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor else 15943f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setDestructorName(Id.StartLocation, Type.get(), RAngleLoc); 15953f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15963f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 15973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 15983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1599ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse an operator-function-id or conversion-function-id as part 1600ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// of a C++ unqualified-id. 16013f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1602ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// This routine is responsible only for parsing the operator-function-id or 1603ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id; it does not handle template arguments in any way. 16043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1605ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 16063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id: [C++ 13.5] 16073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 'operator' operator 16083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1609ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator: one of 16103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// new delete new[] delete[] 16113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// + - * / % ^ & | ~ 16123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ! = < > += -= *= /= %= 16133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ^= &= |= << >> >>= <<= == != 16143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// <= >= && || ++ -- , ->* -> 16153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// () [] 16163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-function-id: [C++ 12.3.2] 16183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator conversion-type-id 16193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-type-id: 16213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// type-specifier-seq conversion-declarator[opt] 16223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-declarator: 16243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ptr-operator conversion-declarator[opt] 16253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \endcode 16263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param The nested-name-specifier that preceded this unqualified-id. If 16283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 16293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we are entering the scope of the 16313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 16323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1633ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 1634ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// expression, the type of the base object whose member is being accessed. 1635ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1636ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 1637ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1638ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \returns true if parsing fails, false otherwise. 1639ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregorbool Parser::ParseUnqualifiedIdOperator(CXXScopeSpec &SS, bool EnteringContext, 1640b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1641ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId &Result) { 1642ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 1643ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1644ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'operator' keyword. 1645ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation KeywordLoc = ConsumeToken(); 1646ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1647ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Determine what kind of operator name we have. 1648ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor unsigned SymbolIdx = 0; 1649ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation SymbolLocations[3]; 1650ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Op = OO_None; 1651ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor switch (Tok.getKind()) { 1652ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_new: 1653ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_delete: { 1654ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor bool isNew = Tok.getKind() == tok::kw_new; 1655ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'new' or 'delete'. 1656ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); 1657ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Tok.is(tok::l_square)) { 1658ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the '['. 1659ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation LBracketLoc = ConsumeBracket(); 1660ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the ']'. 1661ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation RBracketLoc = MatchRHSPunctuation(tok::r_square, 1662ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor LBracketLoc); 1663ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (RBracketLoc.isInvalid()) 1664ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1665ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1666ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = LBracketLoc; 1667ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = RBracketLoc; 1668ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_Array_New : OO_Array_Delete; 1669ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 1670ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_New : OO_Delete; 1671ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1672ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1673ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1674ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1675ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 1676ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::Token: \ 1677ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); \ 1678ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_##Name; \ 1679ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1680ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 1681ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#include "clang/Basic/OperatorKinds.def" 1682ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1683ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_paren: { 1684ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the '('. 1685ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation LParenLoc = ConsumeParen(); 1686ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the ')'. 1687ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, 1688ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor LParenLoc); 1689ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (RParenLoc.isInvalid()) 1690ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1691ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1692ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = LParenLoc; 1693ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = RParenLoc; 1694ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Call; 1695ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1696ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1697ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1698ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_square: { 1699ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the '['. 1700ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation LBracketLoc = ConsumeBracket(); 1701ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the ']'. 1702ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation RBracketLoc = MatchRHSPunctuation(tok::r_square, 1703ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor LBracketLoc); 1704ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (RBracketLoc.isInvalid()) 1705ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1706ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1707ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = LBracketLoc; 1708ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = RBracketLoc; 1709ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Subscript; 1710ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1711ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1712ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1713ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::code_completion: { 1714ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Code completion for the operator name. 171523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOperatorName(getCurScope()); 1716ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1717ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the operator token. 1718dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor ConsumeCodeCompletionToken(); 1719ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1720ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Don't try to parse any further. 1721ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1722ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1723ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1724ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor default: 1725ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1726ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1727ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1728ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Op != OO_None) { 1729ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // We have parsed an operator-function-id. 1730ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setOperatorFunctionId(KeywordLoc, Op, SymbolLocations); 1731ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 1732ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 17330486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 17340486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // Parse a literal-operator-id. 17350486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // 17360486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // literal-operator-id: [C++0x 13.5.8] 17370486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // operator "" identifier 17380486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 17390486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt if (getLang().CPlusPlus0x && Tok.is(tok::string_literal)) { 17400486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt if (Tok.getLength() != 2) 17410486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Diag(Tok.getLocation(), diag::err_operator_string_not_empty); 17420486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt ConsumeStringToken(); 17430486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 17440486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt if (Tok.isNot(tok::identifier)) { 17450486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Diag(Tok.getLocation(), diag::err_expected_ident); 17460486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt return true; 17470486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 17480486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 17490486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt IdentifierInfo *II = Tok.getIdentifierInfo(); 17500486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Result.setLiteralOperatorId(II, KeywordLoc, ConsumeToken()); 17513e518bda00d710754ca077cf9be8dd821e16a854Sean Hunt return false; 17520486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 1753ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1754ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse a conversion-function-id. 1755ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1756ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-function-id: [C++ 12.3.2] 1757ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator conversion-type-id 1758ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1759ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-type-id: 1760ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // type-specifier-seq conversion-declarator[opt] 1761ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1762ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-declarator: 1763ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operator conversion-declarator[opt] 1764ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1765ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the type-specifier-seq. 17660b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 1767f6e6fc801c700c7b8ac202ddbe550d9843a816fcDouglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) // FIXME: ObjectType? 1768ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1769ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1770ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 1771ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operators. 1772ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 1773ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 1774ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1775ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Finish up the type. 1776f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Ty = Actions.ActOnTypeName(getCurScope(), D); 1777ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Ty.isInvalid()) 1778ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1779ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1780ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Note that this is a conversion-function-id. 1781ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setConversionFunctionId(KeywordLoc, Ty.get(), 1782ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor D.getSourceRange().getEnd()); 1783ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 1784ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 1785ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1786ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse a C++ unqualified-id (or a C identifier), which describes the 1787ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// name of an entity. 1788ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1789ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 1790ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// unqualified-id: [C++ expr.prim.general] 1791ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// identifier 1792ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator-function-id 1793ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id 1794ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// [C++0x] literal-operator-id [TODO] 1795ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// ~ class-name 1796ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template-id 1797ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1798ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \endcode 1799ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1800ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param The nested-name-specifier that preceded this unqualified-id. If 1801ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 1802ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1803ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param EnteringContext whether we are entering the scope of the 1804ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// nested-name-specifier. 1805ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 18063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowDestructorName whether we allow parsing of a destructor name. 18073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowConstructorName whether we allow parsing a constructor name. 18093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 181046df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 181146df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 181246df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 18133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 18143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if parsing fails, false otherwise. 18163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedId(CXXScopeSpec &SS, bool EnteringContext, 18173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowDestructorName, 18183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowConstructorName, 1819b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 18203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor UnqualifiedId &Result) { 18210278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 18220278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // Handle 'A::template B'. This is for template-ids which have not 18230278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // already been annotated by ParseOptionalCXXScopeSpecifier(). 18240278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor bool TemplateSpecified = false; 18250278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor SourceLocation TemplateKWLoc; 18260278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (getLang().CPlusPlus && Tok.is(tok::kw_template) && 18270278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (ObjectType || SS.isSet())) { 18280278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified = true; 18290278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateKWLoc = ConsumeToken(); 18300278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor } 18310278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 18323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 18333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // identifier 18343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (when it hasn't already been annotated) 18353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::identifier)) { 18363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Consume the identifier. 18373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Id = Tok.getIdentifierInfo(); 18383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation IdLoc = ConsumeToken(); 18393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1840b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor if (!getLang().CPlusPlus) { 1841b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // If we're not in C++, only identifiers matter. Record the 1842b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // identifier and return. 1843b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor Result.setIdentifier(Id, IdLoc); 1844b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor return false; 1845b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor } 1846b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor 18473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (AllowConstructorName && 184823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*Id, getCurScope(), &SS)) { 18493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed a constructor name. 185023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Result.setConstructorName(Actions.getTypeName(*Id, IdLoc, getCurScope(), 18519e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor &SS, false, false, 18529e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 18539e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor /*NonTrivialTypeSourceInfo=*/true), 18543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdLoc, IdLoc); 18553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 18563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed an identifier. 18573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setIdentifier(Id, IdLoc); 18583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 18593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // If the next token is a '<', we may have a template. 18610278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) 18623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return ParseUnqualifiedIdTemplateId(SS, Id, IdLoc, EnteringContext, 18630278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor ObjectType, Result, 18640278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified, TemplateKWLoc); 18653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 18673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 18683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 18703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (already parsed and annotated) 18713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::annot_template_id)) { 187225a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 18730efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 18740efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // If the template-name names the current class, then this is a constructor 18750efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (AllowConstructorName && TemplateId->Name && 187623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*TemplateId->Name, getCurScope(), &SS)) { 18770efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (SS.isSet()) { 18780efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // C++ [class.qual]p2 specifies that a qualified template-name 18790efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // is taken as the constructor name where a constructor can be 18800efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // declared. Thus, the template arguments are extraneous, so 18810efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // complain about them and remove them entirely. 18820efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Diag(TemplateId->TemplateNameLoc, 18830efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor diag::err_out_of_line_constructor_template_id) 18840efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor << TemplateId->Name 1885849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval( 18860efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor SourceRange(TemplateId->LAngleLoc, TemplateId->RAngleLoc)); 18870efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setConstructorName(Actions.getTypeName(*TemplateId->Name, 18880efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->TemplateNameLoc, 188923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor getCurScope(), 18909e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor &SS, false, false, 18919e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor ParsedType(), 18929e876876afc13aa671cc11a17c19907c599b9ab9Douglas Gregor /*NontrivialTypeSourceInfo=*/true), 18930efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->TemplateNameLoc, 18940efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->RAngleLoc); 18950efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 18960efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 18970efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 18980efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 18990efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setConstructorTemplateId(TemplateId); 19000efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 19010efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 19020efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 19030efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 19043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have already parsed a template-id; consume the annotation token as 19053f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // our unqualified-id. 19060efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setTemplateId(TemplateId); 19073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor ConsumeToken(); 19083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 19093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 19103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 19123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // operator-function-id 19133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // conversion-function-id 19143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::kw_operator)) { 1915ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, Result)) 19163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 19173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1918e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // If we have an operator-function-id or a literal-operator-id and the next 1919e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // token is a '<', we may have a 1920ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1921ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // template-id: 1922ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator-function-id < template-argument-list[opt] > 1923e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if ((Result.getKind() == UnqualifiedId::IK_OperatorFunctionId || 1924e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Result.getKind() == UnqualifiedId::IK_LiteralOperatorId) && 19250278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (TemplateSpecified || Tok.is(tok::less))) 1926ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return ParseUnqualifiedIdTemplateId(SS, 0, SourceLocation(), 1927ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor EnteringContext, ObjectType, 19280278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor Result, 19290278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified, TemplateKWLoc); 19303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 19323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 19333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1934b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor if (getLang().CPlusPlus && 1935b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor (AllowDestructorName || SS.isSet()) && Tok.is(tok::tilde)) { 19363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // C++ [expr.unary.op]p10: 19373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // There is an ambiguity in the unary-expression ~X(), where X is a 19383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // class-name. The ambiguity is resolved in favor of treating ~ as a 19393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unary complement rather than treating ~X as referring to a destructor. 19403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the '~'. 19423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 19433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name. 19453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.isNot(tok::identifier)) { 1946124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 19473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 19483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 19493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name (or template-name in a simple-template-id). 19513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *ClassName = Tok.getIdentifierInfo(); 19523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation ClassNameLoc = ConsumeToken(); 19533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19540278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) { 1955b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Result.setDestructorName(TildeLoc, ParsedType(), ClassNameLoc); 19562d1c21414199a7452f122598189363a3922605b1Douglas Gregor return ParseUnqualifiedIdTemplateId(SS, ClassName, ClassNameLoc, 19570278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor EnteringContext, ObjectType, Result, 19580278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified, TemplateKWLoc); 19592d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 19602d1c21414199a7452f122598189363a3922605b1Douglas Gregor 19613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Note that this is a destructor name. 1962b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType Ty = Actions.getDestructorName(TildeLoc, *ClassName, 1963b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ClassNameLoc, getCurScope(), 1964b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall SS, ObjectType, 1965b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext); 1966124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor if (!Ty) 19673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 1968124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor 19693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setDestructorName(TildeLoc, Ty, ClassNameLoc); 19703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 19713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 19723f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19732d1c21414199a7452f122598189363a3922605b1Douglas Gregor Diag(Tok, diag::err_expected_unqualified_id) 19742d1c21414199a7452f122598189363a3922605b1Douglas Gregor << getLang().CPlusPlus; 19753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 19763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 19773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 19794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 19801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 198159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 198259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 198359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 19844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 19854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 19864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 19874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 19884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 19894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 19904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 19914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 19924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 19934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 1994cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 1995cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 1996893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor/// [GNU] attributes type-specifier-seq new-declarator[opt] 1997cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 1998cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 1999cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 2000cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 2001cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 20024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 20034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 2004dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] braced-init-list 20054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 200660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 200759232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 200859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 200959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 20104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 20114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 20124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 20134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2014a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector PlacementArgs(Actions); 20154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 20164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 20174bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor SourceRange TypeIdParens; 20180b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 20190b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::CXXNewContext); 20204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 20214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 20224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = ConsumeParen(); 2023cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 2024cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 202520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2026cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 20274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 20284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementRParen = MatchRHSPunctuation(tok::r_paren, PlacementLParen); 2029cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 2030cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 203120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2032cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 20334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2034cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 20354c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 20364bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens = SourceRange(PlacementLParen, PlacementRParen); 20374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 20384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 20394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 20404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 20414bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens.setBegin(ConsumeParen()); 2042893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2043cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 2044ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2045cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 20464bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens.setEnd(MatchRHSPunctuation(tok::r_paren, 20474bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens.getBegin())); 20484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2049893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2050cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2051cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2052ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2053ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2054cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2055cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2056ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 20574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 20584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 20594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2060cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 2061cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 2062893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2063cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2064cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2065ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2066ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2067cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2068cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2069ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 20704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 2071eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 2072cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 207320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2074cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 20754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2076a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector ConstructorArgs(Actions); 20774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 20784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 20794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 20804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorLParen = ConsumeParen(); 20814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 20824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 2083cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 2084cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 208520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2086cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 20874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 20884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ConstructorRParen = MatchRHSPunctuation(tok::r_paren, ConstructorLParen); 2089cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 2090cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 209120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2092cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 2093dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } else if (Tok.is(tok::l_brace)) { 2094dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // FIXME: Have to communicate the init-list to ActOnCXXNew. 2095dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl ParseBraceInitializer(); 20964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 20974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2098f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 2099f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(PlacementArgs), PlacementRParen, 21004bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor TypeIdParens, DeclaratorInfo, ConstructorLParen, 2101f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(ConstructorArgs), ConstructorRParen); 21024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 21034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 21054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 21064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 21074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 21084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 21094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 21104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 211159232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 21124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 21134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 21144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 21154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LLoc = ConsumeBracket(); 211660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Size(first ? ParseExpression() 21172f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 21180e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 21194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 21204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SkipUntil(tok::r_square); 21214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 21224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 21234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 21244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2125ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation RLoc = MatchRHSPunctuation(tok::r_square, LLoc); 21260b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall 21270b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributes attrs(AttrFactory); 21280b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall D.AddTypeInfo(DeclaratorChunk::getArray(0, 21297f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall /*static=*/false, /*star=*/false, 21307e7eb3da052a6d80ddf2377cab0384c798f73f75Douglas Gregor Size.release(), LLoc, RLoc), 21310b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall attrs, RLoc); 21324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2133ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl if (RLoc.isInvalid()) 21344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 21354c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 21364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 21374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 21394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 21404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 21414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 21424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 21434c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 21444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 21454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 21464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 21474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 2148ca0408fb49c1370430672acf2d770b7151cf71deJohn McCallbool Parser::ParseExpressionListOrTypeId( 21495f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVectorImpl<Expr*> &PlacementArgs, 215059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 21514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 21524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 2153cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 2154ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 2155cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 2156eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 21574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 21584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 21604c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 21614c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 21624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 21634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 21644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 21664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 21674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 216859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 216959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 217059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 217159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 217259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 21734c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 21744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 21754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 217660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 217759232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 217859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 217959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 21804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 21824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 21834c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_square)) { 21844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 21854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation LHS = ConsumeBracket(); 21864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation RHS = MatchRHSPunctuation(tok::r_square, LHS); 21874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (RHS.isInvalid()) 218820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 21894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 21904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 219160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Operand(ParseCastExpression(false)); 21920e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 219320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Operand); 21944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21959ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, Operand.take()); 21964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 219764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 21981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) { 219964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 220020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley default: assert(false && "Not a known unary type trait."); 220164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 220264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 220320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 220464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 2205023df37c27ee8035664fb62f206ca58f4e2a169dSean Hunt case tok::kw___has_trivial_constructor: 2206023df37c27ee8035664fb62f206ca58f4e2a169dSean Hunt return UTT_HasTrivialDefaultConstructor; 220720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 220864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 220964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 221064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 221120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_arithmetic: return UTT_IsArithmetic; 221220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_array: return UTT_IsArray; 221364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 221420c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_complete_type: return UTT_IsCompleteType; 221520c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_compound: return UTT_IsCompound; 221620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_const: return UTT_IsConst; 221764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 221864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 221920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_floating_point: return UTT_IsFloatingPoint; 222020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_function: return UTT_IsFunction; 222120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_fundamental: return UTT_IsFundamental; 222220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_integral: return UTT_IsIntegral; 222320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_lvalue_reference: return UTT_IsLvalueReference; 222420c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_function_pointer: return UTT_IsMemberFunctionPointer; 222520c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_object_pointer: return UTT_IsMemberObjectPointer; 222620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_pointer: return UTT_IsMemberPointer; 222720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_object: return UTT_IsObject; 22284e61ddd644e9c6293697a966d98d7c1905cf63a8Chandler Carruth case tok::kw___is_literal: return UTT_IsLiteral; 22293840281126e7d10552c55f6fd8b1ec9483898906Chandler Carruth case tok::kw___is_literal_type: return UTT_IsLiteral; 223064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 223120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_pointer: return UTT_IsPointer; 223264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 223320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_reference: return UTT_IsReference; 223420c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_rvalue_reference: return UTT_IsRvalueReference; 223520c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_scalar: return UTT_IsScalar; 223620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_signed: return UTT_IsSigned; 223720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_standard_layout: return UTT_IsStandardLayout; 223820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_trivial: return UTT_IsTrivial; 2239feb375d31b7e9108b04a9f55b721d5e0c793a558Sean Hunt case tok::kw___is_trivially_copyable: return UTT_IsTriviallyCopyable; 224064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 224120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_unsigned: return UTT_IsUnsigned; 224220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_void: return UTT_IsVoid; 224320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_volatile: return UTT_IsVolatile; 224464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 22456ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 22466ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 22476ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichetstatic BinaryTypeTrait BinaryTypeTraitFromTokKind(tok::TokenKind kind) { 22486ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet switch(kind) { 224938c2b730a8553fa1cf369d0c5567f8b5d0a3dda8Francois Pichet default: llvm_unreachable("Not a known binary type trait"); 2250f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___is_base_of: return BTT_IsBaseOf; 225120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_convertible: return BTT_IsConvertible; 225220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_same: return BTT_IsSame; 2253f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___builtin_types_compatible_p: return BTT_TypeCompatible; 22549f3611365d0f2297a910cf246e056708726ed10aDouglas Gregor case tok::kw___is_convertible_to: return BTT_IsConvertibleTo; 22556ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 225664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 225764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 225821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegleystatic ArrayTypeTrait ArrayTypeTraitFromTokKind(tok::TokenKind kind) { 225921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch(kind) { 226021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley default: llvm_unreachable("Not a known binary type trait"); 226121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_rank: return ATT_ArrayRank; 226221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_extent: return ATT_ArrayExtent; 226321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 226421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 226521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2266552622067dc45013d240f73952fece703f5e63bdJohn Wiegleystatic ExpressionTrait ExpressionTraitFromTokKind(tok::TokenKind kind) { 2267552622067dc45013d240f73952fece703f5e63bdJohn Wiegley switch(kind) { 2268552622067dc45013d240f73952fece703f5e63bdJohn Wiegley default: assert(false && "Not a known unary expression trait."); 2269552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_lvalue_expr: return ET_IsLValueExpr; 2270552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_rvalue_expr: return ET_IsRValueExpr; 2271552622067dc45013d240f73952fece703f5e63bdJohn Wiegley } 2272552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2273552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 227464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 227564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 227664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 227764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 227864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 227964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 228064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 228160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseUnaryTypeTrait() { 228264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 228364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 228464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 228564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation LParen = Tok.getLocation(); 228664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 228764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 228864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 228964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 229064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 229164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 2292809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 229364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 229464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 229564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 2296809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 2297809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 2298809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 22993d37c0ada0e46b87be0a10e8d52d990a97d3907aDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, Ty.get(), RParen); 230064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 2301f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 23026ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// ParseBinaryTypeTrait - Parse the built-in binary type-trait 23036ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// pseudo-functions that allow implementation of the TR1/C++0x type traits 23046ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// templates. 23056ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 23066ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// primary-expression: 23076ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// [GNU] binary-type-trait '(' type-id ',' type-id ')' 23086ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 23096ad6f2848d7652ab2991286eb48be440d3493b28Francois PichetExprResult Parser::ParseBinaryTypeTrait() { 23106ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet BinaryTypeTrait BTT = BinaryTypeTraitFromTokKind(Tok.getKind()); 23116ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SourceLocation Loc = ConsumeToken(); 23126ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 23136ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SourceLocation LParen = Tok.getLocation(); 23146ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 23156ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 23166ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 23176ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult LhsTy = ParseTypeName(); 23186ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (LhsTy.isInvalid()) { 23196ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 23206ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 23216ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 23226ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 23236ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (ExpectAndConsume(tok::comma, diag::err_expected_comma)) { 23246ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 23256ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 23266ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 23276ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 23286ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult RhsTy = ParseTypeName(); 23296ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (RhsTy.isInvalid()) { 23306ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 23316ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 23326ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 23336ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 23346ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 23356ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 23366ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return Actions.ActOnBinaryTypeTrait(BTT, Loc, LhsTy.get(), RhsTy.get(), RParen); 23376ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 23386ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 233921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// ParseArrayTypeTrait - Parse the built-in array type-trait 234021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// pseudo-functions. 234121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 234221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// primary-expression: 234321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_rank' '(' type-id ')' 234421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_extent' '(' type-id ',' expression ')' 234521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 234621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John WiegleyExprResult Parser::ParseArrayTypeTrait() { 234721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ArrayTypeTrait ATT = ArrayTypeTraitFromTokKind(Tok.getKind()); 234821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SourceLocation Loc = ConsumeToken(); 234921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 235021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SourceLocation LParen = Tok.getLocation(); 235121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 235221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 235321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 235421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley TypeResult Ty = ParseTypeName(); 235521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (Ty.isInvalid()) { 235621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SkipUntil(tok::comma); 235721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SkipUntil(tok::r_paren); 235821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 235921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 236021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 236121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch (ATT) { 236221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayRank: { 236321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 236421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), NULL, RParen); 236521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 236621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayExtent: { 236721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (ExpectAndConsume(tok::comma, diag::err_expected_comma)) { 236821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SkipUntil(tok::r_paren); 236921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 237021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 237121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 237221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ExprResult DimExpr = ParseExpression(); 237321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 237421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 237521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), DimExpr.get(), RParen); 237621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 237721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley default: 237821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley break; 237921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 238021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 238121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 238221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2383552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// ParseExpressionTrait - Parse built-in expression-trait 2384552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// pseudo-functions like __is_lvalue_expr( xxx ). 2385552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2386552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// primary-expression: 2387552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// [Embarcadero] expression-trait '(' expression ')' 2388552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2389552622067dc45013d240f73952fece703f5e63bdJohn WiegleyExprResult Parser::ParseExpressionTrait() { 2390552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExpressionTrait ET = ExpressionTraitFromTokKind(Tok.getKind()); 2391552622067dc45013d240f73952fece703f5e63bdJohn Wiegley SourceLocation Loc = ConsumeToken(); 2392552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2393552622067dc45013d240f73952fece703f5e63bdJohn Wiegley SourceLocation LParen = Tok.getLocation(); 2394552622067dc45013d240f73952fece703f5e63bdJohn Wiegley if (ExpectAndConsume(tok::l_paren, diag::err_expected_lparen)) 2395552622067dc45013d240f73952fece703f5e63bdJohn Wiegley return ExprError(); 2396552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2397552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExprResult Expr = ParseExpression(); 2398552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2399552622067dc45013d240f73952fece703f5e63bdJohn Wiegley SourceLocation RParen = MatchRHSPunctuation(tok::r_paren, LParen); 2400552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2401552622067dc45013d240f73952fece703f5e63bdJohn Wiegley return Actions.ActOnExpressionTrait(ET, Loc, Expr.get(), RParen); 2402552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2403552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2404552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2405f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 2406f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 2407f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 240860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 2409f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 2410b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &CastTy, 2411f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation LParenLoc, 2412f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation &RParenLoc) { 2413f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(getLang().CPlusPlus && "Should only be called for C++!"); 2414f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 2415f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 2416f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 241760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(true); 2418b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall CastTy = ParsedType(); 2419f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2420f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 2421f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2422f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 2423f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 2424f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 2425f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 2426f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2427f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 2428f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 2429f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 2430f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2431f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 2432a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 2433f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // 2434f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // It uses a scheme similar to parsing inline methods. The parenthesized 2435f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // tokens are cached, the context that follows is determined (possibly by 2436f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parsing a cast-expression), and then we re-introduce the cached tokens 2437f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // into the token stream and parse them appropriately. 2438f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 24391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenParseOption ParseAs; 2440f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis CachedTokens Toks; 2441f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2442f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Store the tokens of the parentheses. We will parse them after we determine 2443f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // the context that follows them. 244414b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis if (!ConsumeAndStoreUntil(tok::r_paren, Toks)) { 2445f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We didn't find the ')' we expected. 2446f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 2447f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 2448f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2449f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2450f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 2451f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = CompoundLiteral; 2452f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } else { 2453f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis bool NotCastExpr; 2454b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // FIXME: Special-case ++ and --: "(S())++;" is not a cast-expression 2455b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman if (Tok.is(tok::l_paren) && NextToken().is(tok::r_paren)) { 2456b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr = true; 2457b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } else { 2458b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // Try parsing the cast-expression that may follow. 2459b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // If it is not a cast-expression, NotCastExpr will be true and no token 2460b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // will be consumed. 2461b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman Result = ParseCastExpression(false/*isUnaryExpression*/, 2462b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman false/*isAddressofOperand*/, 2463b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall NotCastExpr, 24640a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // type-id has priority. 24650a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis true/*isTypeCast*/); 2466b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } 2467f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2468f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // If we parsed a cast-expression, it's really a type-id, otherwise it's 2469f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // an expression. 2470f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = NotCastExpr ? SimpleExpr : CastExpr; 2471f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2472f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 24731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The current token should go after the cached tokens. 2474f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Toks.push_back(Tok); 2475f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Re-enter the stored parenthesized tokens into the token stream, so we may 2476f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parse them now. 2477f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis PP.EnterTokenStream(Toks.data(), Toks.size(), 2478f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis true/*DisableMacroExpansion*/, false/*OwnsTokens*/); 2479f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Drop the current token and bring the first cached one. It's the same token 2480f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // as when we entered this function. 2481f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ConsumeAnyToken(); 2482f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2483f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs >= CompoundLiteral) { 24840a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // Parse the type declarator. 24850a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 24860a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 24870a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 24880a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 2489f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2490f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Match the ')'. 2491f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (Tok.is(tok::r_paren)) 2492f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis RParenLoc = ConsumeParen(); 2493f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis else 2494f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 2495f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2496f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs == CompoundLiteral) { 2497f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ExprType = CompoundLiteral; 24980a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis TypeResult Ty = ParseTypeName(); 2499f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ParseCompoundLiteralExpression(Ty.get(), LParenLoc, RParenLoc); 2500f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } 25011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2502f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We parsed '(' type-id ')' and the thing after it wasn't a '{'. 2503f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == CastExpr); 2504f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 25050a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis if (DeclaratorInfo.isInvalidType()) 2506f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ExprError(); 2507f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2508f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Result is what ParseCastExpression returned earlier. 2509f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 25100a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis Result = Actions.ActOnCastExpr(getCurScope(), LParenLoc, 25110a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis DeclaratorInfo, CastTy, 25120a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis RParenLoc, Result.take()); 2513f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 2514f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 25151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2516f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Not a compound literal, and not followed by a cast-expression. 2517f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == SimpleExpr); 2518f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2519f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 2520f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Result = ParseExpression(); 2521f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 25229ae2f076ca5ab1feb3ba95629099ec2319833701John McCall Result = Actions.ActOnParenExpr(LParenLoc, Tok.getLocation(), Result.take()); 2523f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2524f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 2525f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 2526f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SkipUntil(tok::r_paren); 2527f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 2528f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 25291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2530f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::r_paren)) 2531f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis RParenLoc = ConsumeParen(); 2532f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis else 2533f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis MatchRHSPunctuation(tok::r_paren, LParenLoc); 2534f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2535f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 2536f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 2537