ParseExprCXX.cpp revision 8fe2475a4b4c00475709c13d43eb9a57cce87cbc
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//===----------------------------------------------------------------------===// 13fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali#include "clang/AST/DeclTemplate.h" 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Parser.h" 15bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor#include "RAIIObjectsForParser.h" 16dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman#include "clang/Basic/PrettyStackTrace.h" 1733762775706e81c17ca774102ceda36049ecc593Richard Smith#include "clang/Lex/LiteralSupport.h" 1855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Parse/ParseDiagnostic.h" 1919510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 2019510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 2155fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Scope.h" 223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor#include "llvm/Support/ErrorHandling.h" 233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 24fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 27ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic int SelectDigraphErrorMessage(tok::TokenKind Kind) { 28ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith switch (Kind) { 29ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_template: return 0; 30ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_const_cast: return 1; 31ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_dynamic_cast: return 2; 32ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_reinterpret_cast: return 3; 33ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_static_cast: return 4; 34ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith default: 35b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Unknown type for digraph error message."); 36ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith } 37ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 38ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 39ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Are the two tokens adjacent in the same source file? 4019a2702042b7e3ee838cca458b35f607111a3897Richard Smithbool Parser::areTokensAdjacent(const Token &First, const Token &Second) { 41ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceManager &SM = PP.getSourceManager(); 42ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceLocation FirstLoc = SM.getSpellingLoc(First.getLocation()); 43a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation FirstEnd = FirstLoc.getLocWithOffset(First.getLength()); 44ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith return FirstEnd == SM.getSpellingLoc(Second.getLocation()); 45ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 46ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 47ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Suggest fixit for "<::" after a cast. 48ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic void FixDigraph(Parser &P, Preprocessor &PP, Token &DigraphToken, 49ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Token &ColonToken, tok::TokenKind Kind, bool AtDigraph) { 50ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Pull '<:' and ':' off token stream. 51ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 52ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(DigraphToken); 53ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(ColonToken); 54ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 55ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceRange Range; 56ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setBegin(DigraphToken.getLocation()); 57ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setEnd(ColonToken.getLocation()); 58ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith P.Diag(DigraphToken.getLocation(), diag::err_missing_whitespace_digraph) 59ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << SelectDigraphErrorMessage(Kind) 60ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << FixItHint::CreateReplacement(Range, "< ::"); 61ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 62ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Update token information to reflect their change in token type. 63ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setKind(tok::coloncolon); 64a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis ColonToken.setLocation(ColonToken.getLocation().getLocWithOffset(-1)); 65ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setLength(2); 66ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setKind(tok::less); 67ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setLength(1); 68ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 69ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Push new tokens back to token stream. 70ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(ColonToken); 71ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 72ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(DigraphToken); 73ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 74ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 75950be71c745409e373ae8a834490f9026c8ac222Richard Trieu// Check for '<::' which should be '< ::' instead of '[:' when following 76950be71c745409e373ae8a834490f9026c8ac222Richard Trieu// a template name. 77950be71c745409e373ae8a834490f9026c8ac222Richard Trieuvoid Parser::CheckForTemplateAndDigraph(Token &Next, ParsedType ObjectType, 78950be71c745409e373ae8a834490f9026c8ac222Richard Trieu bool EnteringContext, 79950be71c745409e373ae8a834490f9026c8ac222Richard Trieu IdentifierInfo &II, CXXScopeSpec &SS) { 80c11030ea936f6952deb5a1423ce1648173cd417eRichard Trieu if (!Next.is(tok::l_square) || Next.getLength() != 2) 81950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 82950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 83950be71c745409e373ae8a834490f9026c8ac222Richard Trieu Token SecondToken = GetLookAheadToken(2); 8419a2702042b7e3ee838cca458b35f607111a3897Richard Smith if (!SecondToken.is(tok::colon) || !areTokensAdjacent(Next, SecondToken)) 85950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 86950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 87950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateTy Template; 88950be71c745409e373ae8a834490f9026c8ac222Richard Trieu UnqualifiedId TemplateName; 89950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateName.setIdentifier(&II, Tok.getLocation()); 90950be71c745409e373ae8a834490f9026c8ac222Richard Trieu bool MemberOfUnknownSpecialization; 91950be71c745409e373ae8a834490f9026c8ac222Richard Trieu if (!Actions.isTemplateName(getCurScope(), SS, /*hasTemplateKeyword=*/false, 92950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateName, ObjectType, EnteringContext, 93950be71c745409e373ae8a834490f9026c8ac222Richard Trieu Template, MemberOfUnknownSpecialization)) 94950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 95950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 96950be71c745409e373ae8a834490f9026c8ac222Richard Trieu FixDigraph(*this, PP, Next, SecondToken, tok::kw_template, 97950be71c745409e373ae8a834490f9026c8ac222Richard Trieu /*AtDigraph*/false); 98950be71c745409e373ae8a834490f9026c8ac222Richard Trieu} 99950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 100919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu/// \brief Emits an error for a left parentheses after a double colon. 101919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu/// 102919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu/// When a '(' is found after a '::', emit an error. Attempt to fix the token 103bba91b881c946cbcd200c87dc0a83553506e2458Nico Weber/// stream by removing the '(', and the matching ')' if found. 104919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieuvoid Parser::CheckForLParenAfterColonColon() { 105919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (!Tok.is(tok::l_paren)) 106919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu return; 107919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 108919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu SourceLocation l_parenLoc = ConsumeParen(), r_parenLoc; 109919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok1 = getCurToken(); 110919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (!Tok1.is(tok::identifier) && !Tok1.is(tok::star)) 111919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu return; 112919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 113919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok1.is(tok::identifier)) { 114919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok2 = GetLookAheadToken(1); 115919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok2.is(tok::r_paren)) { 116919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu ConsumeToken(); 117919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu PP.EnterToken(Tok1); 118919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu r_parenLoc = ConsumeParen(); 119919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 120919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } else if (Tok1.is(tok::star)) { 121919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok2 = GetLookAheadToken(1); 122919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok2.is(tok::identifier)) { 123919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok3 = GetLookAheadToken(2); 124919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok3.is(tok::r_paren)) { 125919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu ConsumeToken(); 126919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu ConsumeToken(); 127919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu PP.EnterToken(Tok2); 128919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu PP.EnterToken(Tok1); 129919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu r_parenLoc = ConsumeParen(); 130919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 131919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 132919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 133919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 134919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Diag(l_parenLoc, diag::err_paren_after_colon_colon) 135919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu << FixItHint::CreateRemoval(l_parenLoc) 136919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu << FixItHint::CreateRemoval(r_parenLoc); 137919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu} 138919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 1391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Parse global scope or nested-name-specifier if present. 1402dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1412dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// Parses a C++ global scope specifier ('::') or nested-name-specifier (which 1421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// may be preceded by '::'). Note that this routine will not parse ::new or 1432dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// ::delete; it will just leave them in the token stream. 144eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 145eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 146eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 147eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 148eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 149eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 150eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 151eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 1522dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier 'template'[opt] simple-template-id '::' 1532dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1542dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param SS the scope specifier that will be set to the parsed 1562dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier (or empty) 1572dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ObjectType if this nested-name-specifier is being parsed following 1592dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the "." or "->" of a member access expression, this parameter provides the 1602dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// type of the object whose members are being accessed. 161eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 1622dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \param EnteringContext whether we will be entering into the context of 1632dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the nested-name-specifier after parsing it. 1642dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 165d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param MayBePseudoDestructor When non-NULL, points to a flag that 166d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// indicates whether this nested-name-specifier may be part of a 167d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor name. In this case, the flag will be set false 168d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we don't actually end up parsing a destructor name. Moreorover, 169d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we do end up determining that we are parsing a destructor name, 170d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// the last component of the nested-name-specifier is not parsed as 171d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// part of the scope specifier. 1722db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// 1732db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// \param IsTypename If \c true, this nested-name-specifier is known to be 1742db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// part of a type name. This is used to improve error recovery. 1752db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// 1762db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// \param LastII When non-NULL, points to an IdentifierInfo* that will be 1772db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// filled in with the leading identifier in the last component of the 1782db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// nested-name-specifier, if any. 179b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor/// 1809ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// \returns true if there was an error parsing a scope specifier 181495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS, 182b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 183b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor bool EnteringContext, 1844147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet bool *MayBePseudoDestructor, 1852db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith bool IsTypename, 1862db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith IdentifierInfo **LastII) { 1874e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 1887452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 1891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 190eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 1912db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith assert(!LastII && "want last identifier but have already annotated scope"); 192c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Actions.RestoreNestedNameSpecifierAnnotation(Tok.getAnnotationValue(), 193c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.getAnnotationRange(), 194c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor SS); 195eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 1969ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 197eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 198e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 1999c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo if (Tok.is(tok::annot_template_id)) { 2009c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo // If the current token is an annotated template id, it may already have 2019c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo // a scope specifier. Restore it. 2029c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 2039c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo SS = TemplateId->SS; 2049c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo } 2059c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo 2062db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith if (LastII) 2072db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith *LastII = 0; 2082db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith 20939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 21039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 2115b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 2125b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 2135b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 2145b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 2155b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 2161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 2182e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXGlobalScopeSpecifier(getCurScope(), ConsumeToken(), SS)) 2192e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor return true; 220919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 221919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu CheckForLParenAfterColonColon(); 222919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 22339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 224eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 225eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 226d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor bool CheckForDestructor = false; 227d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (MayBePseudoDestructor && *MayBePseudoDestructor) { 228d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CheckForDestructor = true; 229d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = false; 230d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 231d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 23242d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Tok.is(tok::kw_decltype) || Tok.is(tok::annot_decltype)) { 23342d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie DeclSpec DS(AttrFactory); 23442d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation DeclLoc = Tok.getLocation(); 23542d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation EndLoc = ParseDecltypeSpecifier(DS); 23642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Tok.isNot(tok::coloncolon)) { 23742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie AnnotateExistingDecltypeSpecifier(DS, DeclLoc, EndLoc); 23842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie return false; 23942d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie } 24042d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 24142d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation CCLoc = ConsumeToken(); 24242d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Actions.ActOnCXXNestedNameSpecifierDecltype(SS, DS, CCLoc)) 24342d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SS.SetInvalid(SourceRange(DeclLoc, CCLoc)); 24442d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 24542d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie HasScopeSpecifier = true; 24642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie } 24742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 24839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 2492dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (HasScopeSpecifier) { 2502dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // C++ [basic.lookup.classref]p5: 2512dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If the qualified-id has the form 2523b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 2532dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // ::class-name-or-namespace-name::... 2543b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 2552dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // the class-name-or-namespace-name is looked up in global scope as a 2562dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // class-name or namespace-name. 2572dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // 2582dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // To implement this, we clear out the object type as soon as we've 2592dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // seen a leading '::' or part of a nested-name-specifier. 260b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ObjectType = ParsedType(); 26181b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor 26281b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor if (Tok.is(tok::code_completion)) { 26381b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // Code completion for a nested-name-specifier, where the code 26481b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // code completion token follows the '::'. 26523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteQualifiedId(getCurScope(), SS, EnteringContext); 266b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Include code completion token into the range of the scope otherwise 267b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // when we try to annotate the scope tokens the dangling code completion 268b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // token will cause assertion in 269b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Preprocessor::AnnotatePreviousCachedTokens. 2707d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis SS.setEndLoc(Tok.getLocation()); 2717d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 2727d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return true; 27381b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor } 2742dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor } 2751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 27777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // nested-name-specifier 'template'[opt] simple-template-id '::' 27877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 27977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // Parse the optional 'template' keyword, then make sure we have 28077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // 'identifier <' after it. 28177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.is(tok::kw_template)) { 2822dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If we don't have a scope specifier or an object type, this isn't a 283eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // nested-name-specifier, since they aren't allowed to start with 284eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // 'template'. 2852dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (!HasScopeSpecifier && !ObjectType) 286eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman break; 287eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman 2887bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TentativeParsingAction TPA(*this); 28977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner SourceLocation TemplateKWLoc = ConsumeToken(); 290ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 291ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId TemplateName; 292ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Tok.is(tok::identifier)) { 293ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 2947bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 295ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 296ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else if (Tok.is(tok::kw_operator)) { 297ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, 2987bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName)) { 2997bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 300ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 3017bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 302ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 303e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if (TemplateName.getKind() != UnqualifiedId::IK_OperatorFunctionId && 304e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt TemplateName.getKind() != UnqualifiedId::IK_LiteralOperatorId) { 305ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Diag(TemplateName.getSourceRange().getBegin(), 306ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor diag::err_id_after_template_in_nested_name_spec) 307ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor << TemplateName.getSourceRange(); 3087bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 309ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 310ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 311ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 3127bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 31377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 31477cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 3151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3167bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // If the next token is not '<', we have a qualified-id that refers 3177bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // to a template name, such as T::template apply, but is not a 3187bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // template-id. 3197bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor if (Tok.isNot(tok::less)) { 3207bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 3217bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor break; 3227bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 3237bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor 3247bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // Commit to parsing the template-id. 3257bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 326d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateTy Template; 327e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (TemplateNameKind TNK 328e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara = Actions.ActOnDependentTemplateName(getCurScope(), 329e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, TemplateName, 330e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 331e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template)) { 332e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateKWLoc, 333e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 334d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 335d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } else 3369ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 3371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner continue; 33977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 3401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 3421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We have 34339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 34439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // simple-template-id '::' 34539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 34639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // So we need to check whether the simple-template-id is of the 347c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // right kind (it should name a type or be dependent), and then 348c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // convert it into a type within the nested-name-specifier. 34925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 350d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde)) { 351d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 3529ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 353d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 354d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 3552db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith if (LastII) 3562db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith *LastII = TemplateId->Name; 3572db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith 3586cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor // Consume the template-id token. 3596cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor ConsumeToken(); 3606cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 3616cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 3626cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 3631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3646796fc1adcaf57c38d072a238b016b2834afbe0dDavid Blaikie HasScopeSpecifier = true; 3656cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 3665354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), 3676cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->NumArgs); 3686cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 3696cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), 370e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, 371e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateId->TemplateKWLoc, 3726cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->Template, 3736cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->TemplateNameLoc, 3746cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->LAngleLoc, 3756cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateArgsPtr, 3766cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->RAngleLoc, 3776cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor CCLoc, 3786cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor EnteringContext)) { 3796cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation StartLoc 3806cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor = SS.getBeginLoc().isValid()? SS.getBeginLoc() 3816cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor : TemplateId->TemplateNameLoc; 3826cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SS.SetInvalid(SourceRange(StartLoc, CCLoc)); 38367b9e831943300ce54e564e601971828ce4def15Chris Lattner } 384eccce7e246a17e12a2afd6eabb9ac7c8d582db4eArgyrios Kyrtzidis 3856cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor continue; 38639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 38739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 3885c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 3895c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // The rest of the nested-name-specifier possibilities start with 3905c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // tok::identifier. 3915c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Tok.isNot(tok::identifier)) 3925c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner break; 3935c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 3945c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner IdentifierInfo &II = *Tok.getIdentifierInfo(); 3955c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 3965c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 3975c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '::' 3985c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // namespace-name '::' 3995c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier identifier '::' 4005c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Token Next = NextToken(); 40146646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 40246646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // If we get foo:bar, this is almost certainly a typo for foo::bar. Recover 40346646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // and emit a fixit hint for it. 404b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor if (Next.is(tok::colon) && !ColonIsSacred) { 4052e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.IsInvalidUnlessNestedName(getCurScope(), SS, II, 4062e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Tok.getLocation(), 4072e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Next.getLocation(), ObjectType, 408b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor EnteringContext) && 409b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // If the token after the colon isn't an identifier, it's still an 410b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // error, but they probably meant something else strange so don't 411b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // recover like this. 412b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor PP.LookAhead(1).is(tok::identifier)) { 413b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Diag(Next, diag::err_unexected_colon_in_nested_name_spec) 414849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateReplacement(Next.getLocation(), "::"); 415b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor 416b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // Recover as if the user wrote '::'. 417b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Next.setKind(tok::coloncolon); 418b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor } 41946646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner } 42046646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 4215c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::coloncolon)) { 42277549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde) && 42323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor !Actions.isNonTypeNestedNameSpecifier(getCurScope(), SS, Tok.getLocation(), 42477549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor II, ObjectType)) { 425d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 4269ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 427d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 428d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 4292db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith if (LastII) 4302db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith *LastII = &II; 4312db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith 4325c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have an identifier followed by a '::'. Lookup this name 4335c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // as the name in a nested-name-specifier. 4345c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation IdLoc = ConsumeToken(); 43546646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner assert((Tok.is(tok::coloncolon) || Tok.is(tok::colon)) && 43646646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner "NextToken() not working properly!"); 4375c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation CCLoc = ConsumeToken(); 4381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 439919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu CheckForLParenAfterColonColon(); 440919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 4412e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor HasScopeSpecifier = true; 4422e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), II, IdLoc, CCLoc, 4432e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor ObjectType, EnteringContext, SS)) 4442e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor SS.SetInvalid(SourceRange(IdLoc, CCLoc)); 4452e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 4465c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 4475c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 4481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 449950be71c745409e373ae8a834490f9026c8ac222Richard Trieu CheckForTemplateAndDigraph(Next, ObjectType, EnteringContext, II, SS); 450ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 4515c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 4525c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '<' 4535c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::less)) { 4545c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner TemplateTy Template; 455014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 456014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(&II, Tok.getLocation()); 4571fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 45823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (TemplateNameKind TNK = Actions.isTemplateName(getCurScope(), SS, 4597c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, 460014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName, 4612dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType, 462495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor EnteringContext, 4631fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Template, 4641fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization)) { 4656796fc1adcaf57c38d072a238b016b2834afbe0dDavid Blaikie // We have found a template name, so annotate this token 4665c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // with a template-id annotation. We do not permit the 4675c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // template-id to be translated into a type annotation, 4685c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // because some clients (e.g., the parsing of class template 4695c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // specializations) still want to see the original template-id 4705c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // token. 471ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 472e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 473e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 4749ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 4755c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 476ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo } 477ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo 478d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor if (MemberOfUnknownSpecialization && (ObjectType || SS.isSet()) && 4794147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet (IsTypename || IsTemplateArgumentList(1))) { 480d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // We have something like t::getAs<T>, where getAs is a 481d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // member of an unknown specialization. However, this will only 482d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 483d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // before 'getAs' and treat this as a dependent template name. 4844147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet unsigned DiagID = diag::err_missing_dependent_template_keyword; 4854e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().MicrosoftExt) 486cf320c6388c90f1938c264e87d77a0e43946e2c3Francois Pichet DiagID = diag::warn_missing_dependent_template_keyword; 4874147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 4884147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet Diag(Tok.getLocation(), DiagID) 489d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << II.getName() 490d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << FixItHint::CreateInsertion(Tok.getLocation(), "template "); 491d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 492d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TemplateNameKind TNK 49323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor = Actions.ActOnDependentTemplateName(getCurScope(), 494e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, SourceLocation(), 495d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, ObjectType, 496d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template)) { 497d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor // Consume the identifier. 498d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor ConsumeToken(); 499e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 500e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 501e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return true; 502d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } 503d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor else 504d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor return true; 505d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor 506d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor continue; 5075c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 5085c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 5095c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 51039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 51139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 51239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 51339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 5141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 515d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Even if we didn't see any pieces of a nested-name-specifier, we 516d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // still check whether there is a tilde in this position, which 517d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // indicates a potential pseudo-destructor. 518d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && Tok.is(tok::tilde)) 519d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 520d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 5219ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 522eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 523eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 524eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 525eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 526eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 527eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 528eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 529eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 530eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 531eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 532eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 533eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 534edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor/// '::' template-id 535eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 536eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 537eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 538eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 539eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 540eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 541eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 542eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 543eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 544eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 545eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 546eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 547eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 548eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 549eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 550eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 551eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 552eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 553eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 554eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 555eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 556eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 557eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 558eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 559eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 560eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 561ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 562ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 563ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 564ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 565ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 56660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 567eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 568eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 569eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 570eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 571eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 572efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(SS, ParsedType(), /*EnteringContext=*/false); 573e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 574e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 57502a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor UnqualifiedId Name; 576e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(SS, 577e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*EnteringContext=*/false, 578e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AllowDestructorName=*/false, 579e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AllowConstructorName=*/false, 580b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 581e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, 58202a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor Name)) 58302a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor return ExprError(); 584b681b61fea36618778b8030360e90e3f4641233bJohn McCall 585b681b61fea36618778b8030360e90e3f4641233bJohn McCall // This is only the direct operand of an & operator if it is not 586b681b61fea36618778b8030360e90e3f4641233bJohn McCall // followed by a postfix-expression suffix. 5879c72c6088d591ace8503b842d39448c2040f3033John McCall if (isAddressOfOperand && isPostfixExpressionSuffixStart()) 5889c72c6088d591ace8503b842d39448c2040f3033John McCall isAddressOfOperand = false; 589e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 590e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return Actions.ActOnIdExpression(getCurScope(), SS, TemplateKWLoc, Name, 591e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Tok.is(tok::l_paren), isAddressOfOperand); 592eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 593eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 5940a664b863255065d960342dd074a77d63c753d35Richard Smith/// ParseLambdaExpression - Parse a C++11 lambda expression. 595ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 596ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-expression: 597ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer lambda-declarator[opt] compound-statement 598ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 599ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer: 600ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '[' lambda-capture[opt] ']' 601ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 602ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-capture: 603ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default 604ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list 605ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default ',' capture-list 606ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 607ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default: 608ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' 609ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '=' 610ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 611ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list: 612ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture 613ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list ',' capture 614ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 615ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture: 6160a664b863255065d960342dd074a77d63c753d35Richard Smith/// simple-capture 6170a664b863255065d960342dd074a77d63c753d35Richard Smith/// init-capture [C++1y] 6180a664b863255065d960342dd074a77d63c753d35Richard Smith/// 6190a664b863255065d960342dd074a77d63c753d35Richard Smith/// simple-capture: 620ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// identifier 621ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' identifier 622ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'this' 623ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 6240a664b863255065d960342dd074a77d63c753d35Richard Smith/// init-capture: [C++1y] 6250a664b863255065d960342dd074a77d63c753d35Richard Smith/// identifier initializer 6260a664b863255065d960342dd074a77d63c753d35Richard Smith/// '&' identifier initializer 6270a664b863255065d960342dd074a77d63c753d35Richard Smith/// 628ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-declarator: 629ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '(' parameter-declaration-clause ')' attribute-specifier[opt] 630ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'mutable'[opt] exception-specification[opt] 631ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// trailing-return-type[opt] 632ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 633ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpression() { 634ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-introducer. 635ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 636ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 637dc84cd5efdd3430efb22546b4ac656aa0540b210David Blaikie Optional<unsigned> DiagID(ParseLambdaIntroducer(Intro)); 638ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 639ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, DiagID.getValue()); 6408fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_square, StopAtSemi); 6418fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::l_brace, StopAtSemi); 6428fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_brace, StopAtSemi); 643dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprError(); 644ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 645ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 646ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 647ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 648ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 649ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// TryParseLambdaExpression - Use lookahead and potentially tentative 650ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// parsing to determine if we are looking at a C++0x lambda expression, and parse 651ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// it if we are. 652ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 653ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// If we are not looking at a lambda expression, returns ExprError(). 654ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::TryParseLambdaExpression() { 65580ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith assert(getLangOpts().CPlusPlus11 656ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && Tok.is(tok::l_square) 657ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && "Not at the start of a possible lambda expression."); 658ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 659ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor const Token Next = NextToken(), After = GetLookAheadToken(2); 660ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 661ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // If lookahead indicates this is a lambda... 662ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::r_square) || // [] 663ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Next.is(tok::equal) || // [= 664ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::amp) && // [&] or [&, 665ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (After.is(tok::r_square) || 666ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::comma))) || 667ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::identifier) && // [identifier] 668ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::r_square))) { 669ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpression(); 670ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 671ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 672dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // If lookahead indicates an ObjC message send... 673dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // [identifier identifier 674ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::identifier) && After.is(tok::identifier)) { 675dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprEmpty(); 676ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 677ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 678dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // Here, we're stuck: lambda introducers and Objective-C message sends are 679dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // unambiguous, but it requires arbitrary lookhead. [a,b,c,d,e,f,g] is a 680dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // lambda, and [a,b,c,d,e,f,g h] is a Objective-C message send. Instead of 681dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // writing two routines to parse a lambda introducer, just try to parse 682dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // a lambda introducer first, and fall back if that fails. 683dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // (TryParseLambdaIntroducer never produces any diagnostic output.) 684ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 685ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (TryParseLambdaIntroducer(Intro)) 686dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprEmpty(); 687ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 688ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 689ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 690440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// \brief Parse a lambda introducer. 691440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// \param Intro A LambdaIntroducer filled in with information about the 692440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// contents of the lambda-introducer. 693440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// \param SkippedInits If non-null, we are disambiguating between an Obj-C 694440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// message send and a lambda expression. In this mode, we will 695440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// sometimes skip the initializers for init-captures and not fully 696440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// populate \p Intro. This flag will be set to \c true if we do so. 697440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// \return A DiagnosticID if it hit something unexpected. The location for 698440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// for the diagnostic is that of the current token. 699440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard SmithOptional<unsigned> Parser::ParseLambdaIntroducer(LambdaIntroducer &Intro, 700440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith bool *SkippedInits) { 701dc84cd5efdd3430efb22546b4ac656aa0540b210David Blaikie typedef Optional<unsigned> DiagResult; 702ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 703ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor assert(Tok.is(tok::l_square) && "Lambda expressions begin with '['."); 7044a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 7054a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 7064a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 7074a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Intro.Range.setBegin(T.getOpenLocation()); 708ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 709ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor bool first = true; 710ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 711ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture-default. 712ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp) && 713ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (NextToken().is(tok::comma) || NextToken().is(tok::r_square))) { 714ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByRef; 7153ac109cd17151bb8ad3a40b0cbb0e1923cd6c4a0Douglas Gregor Intro.DefaultLoc = ConsumeToken(); 716ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 717ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::equal)) { 718ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByCopy; 7193ac109cd17151bb8ad3a40b0cbb0e1923cd6c4a0Douglas Gregor Intro.DefaultLoc = ConsumeToken(); 720ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 721ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 722ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 723ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor while (Tok.isNot(tok::r_square)) { 724ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (!first) { 72581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.isNot(tok::comma)) { 726437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // Provide a completion for a lambda introducer here. Except 727437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // in Objective-C, where this is Almost Surely meant to be a message 728437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // send. In that case, fail here and let the ObjC message 729437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // expression parser perform the completion. 730d48ab06b178e400ac31ef4fe649e9c33d2caf651Douglas Gregor if (Tok.is(tok::code_completion) && 731d48ab06b178e400ac31ef4fe649e9c33d2caf651Douglas Gregor !(getLangOpts().ObjC1 && Intro.Default == LCD_None && 732d48ab06b178e400ac31ef4fe649e9c33d2caf651Douglas Gregor !Intro.Captures.empty())) { 73381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 73481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/false); 73581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor ConsumeCodeCompletionToken(); 73681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 73781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 73881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 739ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_comma_or_rsquare); 74081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 741ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 742ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 743ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 74481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.is(tok::code_completion)) { 74581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor // If we're in Objective-C++ and we have a bare '[', then this is more 74681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor // likely to be a message receiver. 7474e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1 && first) 74881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteObjCMessageReceiver(getCurScope()); 74981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor else 75081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 75181f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/false); 75281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor ConsumeCodeCompletionToken(); 75381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 75481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 755ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 75681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor first = false; 75781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 758ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture. 759ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaCaptureKind Kind = LCK_ByCopy; 760ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation Loc; 761ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor IdentifierInfo* Id = 0; 762a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor SourceLocation EllipsisLoc; 7630a664b863255065d960342dd074a77d63c753d35Richard Smith ExprResult Init; 764a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor 765ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::kw_this)) { 766ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_This; 767ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 768ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 769ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp)) { 770ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_ByRef; 771ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 77281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 77381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.is(tok::code_completion)) { 77481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 77581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/true); 77681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor ConsumeCodeCompletionToken(); 77781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 77881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 779ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 780ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 781ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::identifier)) { 782ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Id = Tok.getIdentifierInfo(); 783ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 784ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::kw_this)) { 785ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // FIXME: If we want to suggest a fixit here, will need to return more 786ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // than just DiagnosticID. Perhaps full DiagnosticBuilder that can be 787ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Clear()ed to prevent emission in case of tentative parsing? 788ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_this_captured_by_reference); 789ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 790ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_capture); 791ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 7920a664b863255065d960342dd074a77d63c753d35Richard Smith 7930a664b863255065d960342dd074a77d63c753d35Richard Smith if (Tok.is(tok::l_paren)) { 7940a664b863255065d960342dd074a77d63c753d35Richard Smith BalancedDelimiterTracker Parens(*this, tok::l_paren); 7950a664b863255065d960342dd074a77d63c753d35Richard Smith Parens.consumeOpen(); 7960a664b863255065d960342dd074a77d63c753d35Richard Smith 7970a664b863255065d960342dd074a77d63c753d35Richard Smith ExprVector Exprs; 7980a664b863255065d960342dd074a77d63c753d35Richard Smith CommaLocsTy Commas; 799440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith if (SkippedInits) { 800440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Parens.skipToEnd(); 801440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith *SkippedInits = true; 802440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } else if (ParseExpressionList(Exprs, Commas)) { 8030a664b863255065d960342dd074a77d63c753d35Richard Smith Parens.skipToEnd(); 8040a664b863255065d960342dd074a77d63c753d35Richard Smith Init = ExprError(); 8050a664b863255065d960342dd074a77d63c753d35Richard Smith } else { 8060a664b863255065d960342dd074a77d63c753d35Richard Smith Parens.consumeClose(); 8070a664b863255065d960342dd074a77d63c753d35Richard Smith Init = Actions.ActOnParenListExpr(Parens.getOpenLocation(), 8080a664b863255065d960342dd074a77d63c753d35Richard Smith Parens.getCloseLocation(), 8090a664b863255065d960342dd074a77d63c753d35Richard Smith Exprs); 8100a664b863255065d960342dd074a77d63c753d35Richard Smith } 8110a664b863255065d960342dd074a77d63c753d35Richard Smith } else if (Tok.is(tok::l_brace) || Tok.is(tok::equal)) { 8120a664b863255065d960342dd074a77d63c753d35Richard Smith if (Tok.is(tok::equal)) 8130a664b863255065d960342dd074a77d63c753d35Richard Smith ConsumeToken(); 8140a664b863255065d960342dd074a77d63c753d35Richard Smith 815440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith if (!SkippedInits) 816440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Init = ParseInitializer(); 817440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith else if (Tok.is(tok::l_brace)) { 818440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith BalancedDelimiterTracker Braces(*this, tok::l_brace); 819440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Braces.consumeOpen(); 820440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Braces.skipToEnd(); 821440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith *SkippedInits = true; 822440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } else { 823440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // We're disambiguating this: 824440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // 825440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // [..., x = expr 826440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // 827440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // We need to find the end of the following expression in order to 828440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // determine whether this is an Obj-C message send's receiver, or a 829440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // lambda init-capture. 830440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // 831440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Parse the expression to find where it ends, and annotate it back 832440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // onto the tokens. We would have parsed this expression the same way 833440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // in either case: both the RHS of an init-capture and the RHS of an 834440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // assignment expression are parsed as an initializer-clause, and in 835440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // neither case can anything be added to the scope between the '[' and 836440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // here. 837440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // 838440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // FIXME: This is horrible. Adding a mechanism to skip an expression 839440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // would be much cleaner. 840440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // FIXME: If there is a ',' before the next ']' or ':', we can skip to 841440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // that instead. (And if we see a ':' with no matching '?', we can 842440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // classify this as an Obj-C message send.) 843440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith SourceLocation StartLoc = Tok.getLocation(); 844440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith InMessageExpressionRAIIObject MaybeInMessageExpression(*this, true); 845440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Init = ParseInitializer(); 846440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith 847440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith if (Tok.getLocation() != StartLoc) { 848440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Back out the lexing of the token after the initializer. 849440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith PP.RevertCachedTokens(1); 850440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith 851440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Replace the consumed tokens with an appropriate annotation. 852440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Tok.setLocation(StartLoc); 853440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Tok.setKind(tok::annot_primary_expr); 854440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith setExprAnnotation(Tok, Init); 855440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Tok.setAnnotationEndLoc(PP.getLastCachedTokenLocation()); 856440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith PP.AnnotateCachedTokens(Tok); 857440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith 858440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Consume the annotated initializer. 859440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith ConsumeToken(); 860440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } 861440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } 8620d8e9646bc000bab521ce52ed294209a92298cefRichard Smith } else if (Tok.is(tok::ellipsis)) 8630d8e9646bc000bab521ce52ed294209a92298cefRichard Smith EllipsisLoc = ConsumeToken(); 864ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 865ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 8660a664b863255065d960342dd074a77d63c753d35Richard Smith Intro.addCapture(Kind, Loc, Id, EllipsisLoc, Init); 867ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 868ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 8694a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 8704a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Intro.Range.setEnd(T.getCloseLocation()); 871ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 872ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(); 873ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 874ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 87581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor/// TryParseLambdaIntroducer - Tentatively parse a lambda introducer. 876ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 877ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// Returns true if it hit something unexpected. 878ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregorbool Parser::TryParseLambdaIntroducer(LambdaIntroducer &Intro) { 879ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TentativeParsingAction PA(*this); 880ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 881440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith bool SkippedInits = false; 882440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Optional<unsigned> DiagID(ParseLambdaIntroducer(Intro, &SkippedInits)); 883ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 884ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 885ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Revert(); 886ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return true; 887ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 888ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 889440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith if (SkippedInits) { 890440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Parse it again, but this time parse the init-captures too. 891440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith PA.Revert(); 892440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Intro = LambdaIntroducer(); 893440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith DiagID = ParseLambdaIntroducer(Intro); 894440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith assert(!DiagID && "parsing lambda-introducer failed on reparse"); 895440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith return false; 896440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } 897440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith 898ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Commit(); 899ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return false; 900ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 901ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 902ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpressionAfterIntroducer - Parse the rest of a lambda 903ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// expression. 904ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpressionAfterIntroducer( 905ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer &Intro) { 906dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman SourceLocation LambdaBeginLoc = Intro.Range.getBegin(); 907dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman Diag(LambdaBeginLoc, diag::warn_cxx98_compat_lambda); 908dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 909dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman PrettyStackTraceLoc CrashInfo(PP.getSourceManager(), LambdaBeginLoc, 910dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman "lambda expression parsing"); 911dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 912fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 913fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 9140a664b863255065d960342dd074a77d63c753d35Richard Smith // FIXME: Call into Actions to add any init-capture declarations to the 9150a664b863255065d960342dd074a77d63c753d35Richard Smith // scope while parsing the lambda-declarator and compound-statement. 9160a664b863255065d960342dd074a77d63c753d35Richard Smith 917ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-declarator[opt]. 918ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclSpec DS(AttrFactory); 919f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman Declarator D(DS, Declarator::LambdaExprContext); 920fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali TemplateParameterDepthRAII CurTemplateDepthTracker(TemplateParameterDepth); 921fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Actions.PushLambdaScope(); 922ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 923ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::l_paren)) { 924ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseScope PrototypeScope(this, 925ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::FunctionPrototypeScope | 9263a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith Scope::FunctionDeclarationScope | 927ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::DeclScope); 928ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 92959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation DeclEndLoc; 9304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 9314a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 93259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation LParenLoc = T.getOpenLocation(); 933ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 934ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse parameter-declaration-clause. 935ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParsedAttributes Attr(AttrFactory); 936cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<DeclaratorChunk::ParamInfo, 16> ParamInfo; 937ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation EllipsisLoc; 938ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 939fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 940fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali if (Tok.isNot(tok::r_paren)) { 941fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Actions.RecordParsingTemplateParameterDepth(TemplateParameterDepth); 942ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseParameterDeclarationClause(D, Attr, ParamInfo, EllipsisLoc); 943fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // For a generic lambda, each 'auto' within the parameter declaration 944fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // clause creates a template type parameter, so increment the depth. 945fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali if (Actions.getCurGenericLambda()) 946fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali ++CurTemplateDepthTracker; 947fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali } 9484a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 94959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation RParenLoc = T.getCloseLocation(); 95059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara DeclEndLoc = RParenLoc; 951ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 952ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse 'mutable'[opt]. 953ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation MutableLoc; 954ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::kw_mutable)) { 955ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MutableLoc = ConsumeToken(); 956ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = MutableLoc; 957ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 958ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 959ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse exception-specification[opt]. 960ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExceptionSpecificationType ESpecType = EST_None; 961ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange ESpecRange; 962cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<ParsedType, 2> DynamicExceptions; 963cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<SourceRange, 2> DynamicExceptionRanges; 964ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExprResult NoexceptExpr; 965a058fd4f0a944174295f77169b438510dad389f8Richard Smith ESpecType = tryParseExceptionSpecification(ESpecRange, 96674e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions, 96774e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges, 968a058fd4f0a944174295f77169b438510dad389f8Richard Smith NoexceptExpr); 969ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 970ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (ESpecType != EST_None) 971ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = ESpecRange.getEnd(); 972ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 973ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse attribute-specifier[opt]. 9744e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(Attr, &DeclEndLoc); 975ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 97659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation FunLocalRangeEnd = DeclEndLoc; 97759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara 978ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse trailing-return-type[opt]. 97954655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TypeResult TrailingReturnType; 980ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::arrow)) { 98159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara FunLocalRangeEnd = Tok.getLocation(); 982ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange Range; 98354655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TrailingReturnType = ParseTrailingReturnType(Range); 984ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Range.getEnd().isValid()) 985ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = Range.getEnd(); 986ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 987ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 988ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PrototypeScope.Exit(); 989ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 99059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation NoLoc; 991ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor D.AddTypeInfo(DeclaratorChunk::getFunction(/*hasProto=*/true, 99259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*isAmbiguous=*/false, 99359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara LParenLoc, 994ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParamInfo.data(), ParamInfo.size(), 99559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara EllipsisLoc, RParenLoc, 996ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DS.getTypeQualifiers(), 997ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor /*RefQualifierIsLValueRef=*/true, 99859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierLoc=*/NoLoc, 99959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ConstQualifierLoc=*/NoLoc, 100059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*VolatileQualifierLoc=*/NoLoc, 1001ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MutableLoc, 1002ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ESpecType, ESpecRange.getBegin(), 1003ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.data(), 1004ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptionRanges.data(), 1005ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.size(), 1006ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr.isUsable() ? 1007ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr.get() : 0, 100859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara LParenLoc, FunLocalRangeEnd, D, 1009ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TrailingReturnType), 1010ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Attr, DeclEndLoc); 1011c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor } else if (Tok.is(tok::kw_mutable) || Tok.is(tok::arrow)) { 1012c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // It's common to forget that one needs '()' before 'mutable' or the 1013c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // result type. Deal with this. 1014c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor Diag(Tok, diag::err_lambda_missing_parens) 1015c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor << Tok.is(tok::arrow) 1016c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor << FixItHint::CreateInsertion(Tok.getLocation(), "() "); 1017c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceLocation DeclLoc = Tok.getLocation(); 1018c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceLocation DeclEndLoc = DeclLoc; 1019c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 1020c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // Parse 'mutable', if it's there. 1021c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceLocation MutableLoc; 1022c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor if (Tok.is(tok::kw_mutable)) { 1023c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor MutableLoc = ConsumeToken(); 1024c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor DeclEndLoc = MutableLoc; 1025c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor } 1026c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 1027c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // Parse the return type, if there is one. 102854655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TypeResult TrailingReturnType; 1029c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor if (Tok.is(tok::arrow)) { 1030c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceRange Range; 103154655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TrailingReturnType = ParseTrailingReturnType(Range); 1032c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor if (Range.getEnd().isValid()) 1033c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor DeclEndLoc = Range.getEnd(); 1034c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor } 1035c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 1036c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor ParsedAttributes Attr(AttrFactory); 103759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation NoLoc; 1038c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor D.AddTypeInfo(DeclaratorChunk::getFunction(/*hasProto=*/true, 103959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*isAmbiguous=*/false, 104059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*LParenLoc=*/NoLoc, 104159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*Params=*/0, 104259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumParams=*/0, 104359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*EllipsisLoc=*/NoLoc, 104459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RParenLoc=*/NoLoc, 104559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*TypeQuals=*/0, 104659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierIsLValueRef=*/true, 104759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierLoc=*/NoLoc, 104859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ConstQualifierLoc=*/NoLoc, 104959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*VolatileQualifierLoc=*/NoLoc, 105059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara MutableLoc, 105159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara EST_None, 105259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ESpecLoc=*/NoLoc, 105359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*Exceptions=*/0, 105459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ExceptionRanges=*/0, 105559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumExceptions=*/0, 105659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NoexceptExpr=*/0, 105759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara DeclLoc, DeclEndLoc, D, 105859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara TrailingReturnType), 1059c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor Attr, DeclEndLoc); 1060ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 1061c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 1062ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1063906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman // FIXME: Rename BlockScope -> ClosureScope if we decide to continue using 1064906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman // it. 1065fccfb625e3090e77da9b6a79edcab159c7006685Douglas Gregor unsigned ScopeFlags = Scope::BlockScope | Scope::FnScope | Scope::DeclScope; 1066fccfb625e3090e77da9b6a79edcab159c7006685Douglas Gregor ParseScope BodyScope(this, ScopeFlags); 1067906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman 1068ec9ea7200718478e8a976529defbe21942a11c9cEli Friedman Actions.ActOnStartOfLambdaDefinition(Intro, D, getCurScope()); 1069ec9ea7200718478e8a976529defbe21942a11c9cEli Friedman 1070ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse compound-statement. 1071dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman if (!Tok.is(tok::l_brace)) { 1072ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, diag::err_expected_lambda_body); 1073dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman Actions.ActOnLambdaError(LambdaBeginLoc, getCurScope()); 1074dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprError(); 1075ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 1076ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1077dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman StmtResult Stmt(ParseCompoundStatementBody()); 1078dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman BodyScope.Exit(); 1079dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 1080deeab90783eb28d955add1062b616c030eb2b781Eli Friedman if (!Stmt.isInvalid()) 10819e8c92a9c9b949bbb0408fbbd9a58e34894b6efcDouglas Gregor return Actions.ActOnLambdaExpr(LambdaBeginLoc, Stmt.take(), getCurScope()); 1082dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 1083deeab90783eb28d955add1062b616c030eb2b781Eli Friedman Actions.ActOnLambdaError(LambdaBeginLoc, getCurScope()); 1084deeab90783eb28d955add1062b616c030eb2b781Eli Friedman return ExprError(); 1085ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 1086ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 10895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 10915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 109660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXCasts() { 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 1101eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie default: llvm_unreachable("Unknown C++ cast!"); 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 11035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 11045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 11055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1111ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Check for "<::" which is parsed as "[:". If found, fix token stream, 1112ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // diagnose error, suggest fix, and recover parsing. 111378fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith if (Tok.is(tok::l_square) && Tok.getLength() == 2) { 111478fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith Token Next = NextToken(); 111578fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith if (Next.is(tok::colon) && areTokensAdjacent(Tok, Next)) 111678fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith FixDigraph(*this, PP, Tok, Next, Kind, /*AtDigraph*/true); 111778fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith } 1118ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 112020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 112231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the common declaration-specifiers piece. 112331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 112431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 112531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 112631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the abstract-declarator, if present. 112731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 112831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 112931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11321ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 113320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SourceLocation LParenLoc, RParenLoc; 11364a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11384a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, CastName)) 113921e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 114160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result = ParseExpression(); 11421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 114321e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 11444a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 114631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (!Result.isInvalid() && !DeclaratorInfo.isInvalidType()) 114749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 114831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis LAngleBracketLoc, DeclaratorInfo, 1149809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 11504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getOpenLocation(), Result.take(), 11514a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11533fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 11545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1156c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 1157c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 1158c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 1159c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 1160c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 1161c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 116260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXTypeid() { 1163c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 1164c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1165c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 11664a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SourceLocation LParenLoc, RParenLoc; 11674a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 1168c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1169c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 11704a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, "typeid")) 117120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 11724a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LParenLoc = T.getOpenLocation(); 1173c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 117460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result; 1175c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 11760576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // C++0x [expr.typeid]p3: 11770576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // When typeid is applied to an expression other than an lvalue of a 11780576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // polymorphic class type [...] The expression is an unevaluated 11790576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // operand (Clause 5). 11800576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // 11810576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Note that we can't tell whether the expression is an lvalue of a 11820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // polymorphic class type until after we've parsed the expression; we 11830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // speculatively assume the subexpression is unevaluated, and fix it up 11840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // later. 11850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // 11860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We enter the unevaluated context before trying to determine whether we 11870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // have a type-id, because the tentative parse logic will try to resolve 11880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // names, and must treat them as unevaluated. 118980bfa3d125fa0b9c636977ea37b4a55b2c9b1037Eli Friedman EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated, 119080bfa3d125fa0b9c636977ea37b4a55b2c9b1037Eli Friedman Sema::ReuseLambdaContextDecl); 11910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 1192c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 1193809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 1194c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1195c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 11964a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 11974a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor RParenLoc = T.getCloseLocation(); 11984eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (Ty.isInvalid() || RParenLoc.isInvalid()) 119920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 1200c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1201c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 1202b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Ty.get().getAsOpaquePtr(), RParenLoc); 1203c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 1204c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 1205c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1206c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 12070e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 12088fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 1209c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 12104a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 12114a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor RParenLoc = T.getCloseLocation(); 12124eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (RParenLoc.isInvalid()) 12134eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor return ExprError(); 1214fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor 1215c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 1216effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 1217c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 1218c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 1219c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 12203fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 1221c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 1222c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 122301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// ParseCXXUuidof - This handles the Microsoft C++ __uuidof expression. 122401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 122501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' expression ')' 122601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' type-id ')' 122701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 122801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois PichetExprResult Parser::ParseCXXUuidof() { 122901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet assert(Tok.is(tok::kw___uuidof) && "Not '__uuidof'!"); 123001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 123101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation OpLoc = ConsumeToken(); 12324a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 123301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 123401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // __uuidof expressions are always parenthesized. 12354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, "__uuidof")) 123601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 123701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 123801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet ExprResult Result; 123901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 124001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (isTypeIdInParens()) { 124101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet TypeResult Ty = ParseTypeName(); 124201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 124301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 12444a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 124501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 124601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Ty.isInvalid()) 124701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 124801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 12494a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCXXUuidof(OpLoc, T.getOpenLocation(), /*isType=*/true, 12504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Ty.get().getAsOpaquePtr(), 12514a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 125201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } else { 125301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); 125401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = ParseExpression(); 125501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 125601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 125701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Result.isInvalid()) 12588fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 125901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet else { 12604a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 126101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 12624a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCXXUuidof(OpLoc, T.getOpenLocation(), 12634a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor /*isType=*/false, 12644a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result.release(), T.getCloseLocation()); 126501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 126601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 126701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 12683fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 126901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet} 127001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 1271d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \brief Parse a C++ pseudo-destructor expression after the base, 1272d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// . or -> operator, and nested-name-specifier have already been 1273d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// parsed. 1274d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 1275d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression: [C++ 5.2] 1276d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression . pseudo-destructor-name 1277d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression -> pseudo-destructor-name 1278d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 1279d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor-name: 1280d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] type-name :: ~type-name 1281d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier template simple-template-id :: 1282d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ~type-name 1283d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] ~type-name 1284d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 128560d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 1286d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas GregorParser::ParseCXXPseudoDestructor(ExprArg Base, SourceLocation OpLoc, 1287d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor tok::TokenKind OpKind, 1288d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CXXScopeSpec &SS, 1289b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType) { 1290d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // We're parsing either a pseudo-destructor-name or a dependent 1291d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // member access that has the same form as a 1292d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // pseudo-destructor-name. We parse both in the same way and let 1293d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // the action model sort them out. 1294d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // 1295d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Note that the ::[opt] nested-name-specifier[opt] has already 1296d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been parsed, and if there was a simple-template-id, it has 1297d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been coalesced into a template-id annotation token. 1298d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId FirstTypeName; 1299d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation CCLoc; 1300d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::identifier)) { 1301d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 1302d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 1303d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 1304d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 1305d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else if (Tok.is(tok::annot_template_id)) { 1306e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // FIXME: retrieve TemplateKWLoc from template-id annotation and 1307e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // store it in the pseudo-dtor node (to be used when instantiating it). 1308d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setTemplateId( 1309d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor (TemplateIdAnnotation *)Tok.getAnnotationValue()); 1310d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 1311d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 1312d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 1313d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else { 1314d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(0, SourceLocation()); 1315d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 1316d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1317d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the tilde. 1318d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::tilde) && "ParseOptionalCXXScopeSpecifier fail"); 1319d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 132091ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie 132191ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie if (Tok.is(tok::kw_decltype) && !FirstTypeName.isValid() && SS.isEmpty()) { 132291ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie DeclSpec DS(AttrFactory); 132385c60db2131c6d210d4777c3d50bdaf0e69bb8bfBenjamin Kramer ParseDecltypeSpecifier(DS); 132491ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie if (DS.getTypeSpecType() == TST_error) 132591ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie return ExprError(); 132691ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, OpLoc, 132791ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie OpKind, TildeLoc, DS, 132891ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie Tok.is(tok::l_paren)); 132991ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie } 133091ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie 1331d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (!Tok.is(tok::identifier)) { 1332d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 1333d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1334d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 1335d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1336d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the second type. 1337d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId SecondTypeName; 1338d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor IdentifierInfo *Name = Tok.getIdentifierInfo(); 1339d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation NameLoc = ConsumeToken(); 1340d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SecondTypeName.setIdentifier(Name, NameLoc); 1341d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1342d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // If there is a '<', the second type name is a template-id. Parse 1343d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // it as such. 1344d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::less) && 1345e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ParseUnqualifiedIdTemplateId(SS, SourceLocation(), 1346e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Name, NameLoc, 1347e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara false, ObjectType, SecondTypeName, 1348e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AssumeTemplateName=*/true)) 1349d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1350d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 13519ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, 13529ae2f076ca5ab1feb3ba95629099ec2319833701John McCall OpLoc, OpKind, 1353d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SS, FirstTypeName, CCLoc, 1354d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor TildeLoc, SecondTypeName, 1355d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Tok.is(tok::l_paren)); 1356d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor} 1357d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 13585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 13595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 13625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 136360d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXBoolLiteral() { 13645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 1365f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 136750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 136850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 136950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 137050dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 137150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 137260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseThrowExpression() { 137350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 137450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 137520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 13762a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 13772a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 13782a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 13792a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 13802a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 13812a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 13822a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 13832a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 13842a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 13852a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 1386bca01b46850f867b2f4137f25c882022b58f8471Douglas Gregor return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, 0); 138750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 13882a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 138960d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Expr(ParseAssignmentExpression()); 13903fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer if (Expr.isInvalid()) return Expr; 1391bca01b46850f867b2f4137f25c882022b58f8471Douglas Gregor return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, Expr.take()); 13922a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 139350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 13944cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 13954cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 13964cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 13974cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 13984cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 13994cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 140060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXThis() { 14014cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 14024cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 1403f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 14044cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 1405987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1406987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 1407987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 1408987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 1409987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 1410dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// See [C++ 5.2.3]. 1411987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1412987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 1413dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// simple-type-specifier '(' expression-list[opt] ')' 1414dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] simple-type-specifier braced-init-list 1415dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// typename-specifier '(' expression-list[opt] ')' 1416dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] typename-specifier braced-init-list 1417987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 141860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 141920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 1420987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 1421b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = Actions.ActOnTypeName(getCurScope(), DeclaratorInfo).get(); 1422987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1423dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Tok.is(tok::l_paren) || 142480ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace))) 1425dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl && "Expected '(' or '{'!"); 1426bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor 1427dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.is(tok::l_brace)) { 14286dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl ExprResult Init = ParseBraceInitializer(); 14296dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl if (Init.isInvalid()) 14306dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl return Init; 14316dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl Expr *InitList = Init.take(); 14326dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl return Actions.ActOnCXXTypeConstructExpr(TypeRep, SourceLocation(), 14336dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl MultiExprArg(&InitList, 1), 14346dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl SourceLocation()); 1435dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } else { 14364a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 14374a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 1438dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 14394e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer ExprVector Exprs; 1440dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl CommaLocsTy CommaLocs; 1441dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 1442dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.isNot(tok::r_paren)) { 1443dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (ParseExpressionList(Exprs, CommaLocs)) { 14448fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 1445dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1446dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1447987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1448987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1449dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // Match the ')'. 14504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1451987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1452dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // TypeRep could be null, if it references an invalid typedef. 1453dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (!TypeRep) 1454dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1455ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl 1456dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 1457dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl "Unexpected number of commas!"); 14584a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnCXXTypeConstructExpr(TypeRep, T.getOpenLocation(), 14593fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer Exprs, 14604a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 1461dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1462987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 1463987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 146499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// ParseCXXCondition - if/switch/while condition expression. 146571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 146671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 146771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 146871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 14690635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith/// [C++11] type-specifier-seq declarator '=' initializer-clause 14700635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith/// [C++11] type-specifier-seq declarator braced-init-list 147171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 147271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 147371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 14741ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param ExprOut if the condition was parsed as an expression, the parsed 14751ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// expression. 147699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 14771ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param DeclOut if the condition was parsed as a declaration, the parsed 14781ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// declaration. 147999e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 1480586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param Loc The location of the start of the statement that requires this 1481586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// condition, e.g., the "for" in a for loop. 1482586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 1483586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param ConvertToBoolean Whether the condition expression should be 1484586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// converted to a boolean value. 1485586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 148699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \returns true if there was a parsing, false otherwise. 148760d7b3a319d84d688752be3870615ac0f111fb16John McCallbool Parser::ParseCXXCondition(ExprResult &ExprOut, 148860d7b3a319d84d688752be3870615ac0f111fb16John McCall Decl *&DeclOut, 1489586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor SourceLocation Loc, 1490586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor bool ConvertToBoolean) { 149101dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor if (Tok.is(tok::code_completion)) { 1492f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Condition); 14937d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 14947d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return true; 149501dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor } 149601dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor 14972edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsedAttributesWithRange attrs(AttrFactory); 14984e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 14992edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 150099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor if (!isCXXConditionDeclaration()) { 15012edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 15022edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 1503586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // Parse the expression. 150460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ParseExpression(); // expression 150560d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = 0; 150660d7b3a319d84d688752be3870615ac0f111fb16John McCall if (ExprOut.isInvalid()) 1507586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor return true; 1508586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 1509586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // If required, convert to a boolean value. 1510586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor if (ConvertToBoolean) 151160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut 151260d7b3a319d84d688752be3870615ac0f111fb16John McCall = Actions.ActOnBooleanCondition(getCurScope(), Loc, ExprOut.get()); 151360d7b3a319d84d688752be3870615ac0f111fb16John McCall return ExprOut.isInvalid(); 151499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 151571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 151671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 15170b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 15186b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith DS.takeAttributesFrom(attrs); 151971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 152071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 152171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 152271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 152371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 152471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 152571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 152671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 1527ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 152860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult AsmLabel(ParseSimpleAsm(&Loc)); 15290e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 15308fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi); 153199e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return true; 153271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 1533effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 1534ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 153571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 153671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 153771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 15387f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(DeclaratorInfo); 153971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 154099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // Type-check the declaration itself. 154160d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclResult Dcl = Actions.ActOnCXXConditionDeclaration(getCurScope(), 15427f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DeclaratorInfo); 154360d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = Dcl.get(); 154460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ExprError(); 1545a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 154671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 1547d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu // If a '==' or '+=' is found, suggest a fixit to '='. 15480635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith bool CopyInitialization = isTokenEqualOrEqualTypo(); 15490635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith if (CopyInitialization) 1550dec0984fce504a39a7f085774fb67cfd9957be58Jeffrey Yasskin ConsumeToken(); 15510635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith 15520635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith ExprResult InitExpr = ExprError(); 155380ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace)) { 15540635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Diag(Tok.getLocation(), 15550635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith diag::warn_cxx98_compat_generalized_initializer_lists); 15560635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith InitExpr = ParseBraceInitializer(); 15570635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith } else if (CopyInitialization) { 15580635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith InitExpr = ParseAssignmentExpression(); 15590635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith } else if (Tok.is(tok::l_paren)) { 15600635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith // This was probably an attempt to initialize the variable. 15610635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith SourceLocation LParen = ConsumeParen(), RParen = LParen; 15628fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (SkipUntil(tok::r_paren, StopAtSemi | StopBeforeMatch)) 15630635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith RParen = ConsumeParen(); 15640635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Diag(DeclOut ? DeclOut->getLocation() : LParen, 15650635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith diag::err_expected_init_in_condition_lparen) 15660635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith << SourceRange(LParen, RParen); 156799e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } else { 15680635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Diag(DeclOut ? DeclOut->getLocation() : Tok.getLocation(), 15690635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith diag::err_expected_init_in_condition); 157099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 15710635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith 15720635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith if (!InitExpr.isInvalid()) 15730635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Actions.AddInitializerToDecl(DeclOut, InitExpr.take(), !CopyInitialization, 1574a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DS.containsPlaceholderType()); 1575dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith else 1576dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith Actions.ActOnInitializerError(DeclOut); 15770635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith 1578586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // FIXME: Build a reference to this declaration? Convert it to bool? 1579586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // (This is currently handled by Sema). 1580483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith 1581483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith Actions.FinalizeDeclaration(DeclOut); 1582586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 158399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return false; 158471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 158571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 1586987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 1587987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 1588987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 1589987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1590987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 1591eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 1592987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 1593987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 1594987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 1595987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 1596987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 1597987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 1598987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 1599987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 1600987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 1601987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 1602987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 1603987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 1604987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 1605987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 1606987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1607987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 1608987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 1609987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 1610987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 1611987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1612987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 1613987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 1614987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 1615fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 1616987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 16171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1618987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 161955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 162055a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 1621b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Annotation token should already be formed!"); 16221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: 1623b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Not a simple-type-specifier token!"); 162455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 1625987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 1626b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 16276952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (getTypeAnnotation(Tok)) 16286952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, DiagID, 16296952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor getTypeAnnotation(Tok)); 16306952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor else 16316952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecError(); 16329bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 16339bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 16349bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ConsumeToken(); 16359bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 16369bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C supports syntax of the form 'id<proto1,proto2>' where 'id' 16379bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // is a specific typedef and 'itf<proto1,proto2>' where 'itf' is an 16389bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C interface. If we don't have Objective-C or a '<', this is 16399bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // just a normal reference to a typedef name. 16404e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Tok.is(tok::less) && getLangOpts().ObjC1) 16419bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ParseObjCProtocolQualifiers(DS); 16429bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 16439bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.Finish(Diags, PP); 16449bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor return; 1645987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 16461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1647987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 1648987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 1649fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec, DiagID); 1650987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1651987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 1652fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec, DiagID); 1653338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet break; 1654338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet case tok::kw___int64: 1655338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet DS.SetTypeSpecWidth(DeclSpec::TSW_longlong, Loc, PrevSpec, DiagID); 1656987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1657987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 1658fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec, DiagID); 1659987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1660987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 1661fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec, DiagID); 1662987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1663987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 1664fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec, DiagID); 1665987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1666987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 1667fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec, DiagID); 1668987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1669987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 1670fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec, DiagID); 1671987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 16725a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith case tok::kw___int128: 16735a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith DS.SetTypeSpecType(DeclSpec::TST_int128, Loc, PrevSpec, DiagID); 16745a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith break; 1675aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case tok::kw_half: 1676aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov DS.SetTypeSpecType(DeclSpec::TST_half, Loc, PrevSpec, DiagID); 1677aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov break; 1678987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 1679fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec, DiagID); 1680987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1681987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 1682fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec, DiagID); 1683987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1684987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 1685fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec, DiagID); 1686987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1687f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char16_t: 1688fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char16, Loc, PrevSpec, DiagID); 1689f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1690f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char32_t: 1691fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char32, Loc, PrevSpec, DiagID); 1692f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1693987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 1694fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec, DiagID); 1695987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 16965e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie case tok::annot_decltype: 16975e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie case tok::kw_decltype: 16985e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie DS.SetRangeEnd(ParseDecltypeSpecifier(DS)); 16995e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie return DS.Finish(Diags, PP); 17001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1701987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 1702987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 1703987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 17049b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 1705987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 1706987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1707b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 1708eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 1709eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 1710eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 1711987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 17129b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 1713987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 17141cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 17152f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 17162f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 17172f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 17182f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 17192f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 17202f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 17212f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 17222f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 17232f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 17242f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 17252f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 17262f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 172769730c115c2d0fec2f20609d905d920a5a41b29bRichard Smith ParseSpecifierQualifierList(DS, AS_none, DSC_type_specifier); 1728396a9f235e160093b5f803f7a6a18fad7b68bdbeDouglas Gregor DS.Finish(Diags, PP); 17292f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 17302f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 17312f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 17323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \brief Finish parsing a C++ unqualified-id that is a template-id of 17333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// some form. 17343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// This routine is invoked when a '<' is encountered after an identifier or 17363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id is parsed by \c ParseUnqualifiedId() to determine 17373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// whether the unqualified-id is actually a template-id. This routine will 17383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// then parse the template arguments and form the appropriate template-id to 17393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// return to the caller. 17403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param SS the nested-name-specifier that precedes this template-id, if 17423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// we're actually parsing a qualified-id. 17433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Name for constructor and destructor names, this is the actual 17453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// identifier that may be a template-name. 17463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param NameLoc the location of the class-name in a constructor or 17483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// destructor. 17493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we're entering the scope of the 17513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 17523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 175346df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 175446df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 175546df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 17563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Id as input, describes the template-name or operator-function-id 17573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// that precedes the '<'. If template arguments were parsed successfully, 17583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// will be updated with the template-id. 17593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1760d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param AssumeTemplateId When true, this routine will assume that the name 1761d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// refers to a template without performing name lookup to verify. 1762d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 17633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if a parse error occurred, false otherwise. 17643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedIdTemplateId(CXXScopeSpec &SS, 1765e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 17663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Name, 17673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation NameLoc, 17683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool EnteringContext, 1769b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1770d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId &Id, 1771e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool AssumeTemplateId) { 17720278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor assert((AssumeTemplateId || Tok.is(tok::less)) && 17730278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor "Expected '<' to finish parsing a template-id"); 17743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 17753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateTy Template; 17763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateNameKind TNK = TNK_Non_template; 17773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (Id.getKind()) { 17783f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 1779014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 1780e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 1781d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (AssumeTemplateId) { 1782e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), SS, TemplateKWLoc, 1783d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Id, ObjectType, EnteringContext, 1784d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Template); 1785d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 1786d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 17871fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } else { 17881fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 17897c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, 17907c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateKWLoc.isValid(), Id, 17917c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara ObjectType, EnteringContext, Template, 17921fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 17931fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor 17941fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (TNK == TNK_Non_template && MemberOfUnknownSpecialization && 17951fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor ObjectType && IsTemplateArgumentList()) { 17961fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // We have something like t->getAs<T>(), where getAs is a 17971fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // member of an unknown specialization. However, this will only 17981fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 17991fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // before 'getAs' and treat this as a dependent template name. 18001fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor std::string Name; 18011fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) 18021fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = Id.Identifier->getName(); 18031fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else { 18041fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = "operator "; 18051fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_OperatorFunctionId) 18061fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += getOperatorSpelling(Id.OperatorFunctionId.Operator); 18071fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else 18081fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += Id.Identifier->getName(); 18091fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 18101fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Diag(Id.StartLocation, diag::err_missing_dependent_template_keyword) 18111fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << Name 18121fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << FixItHint::CreateInsertion(Id.StartLocation, "template "); 1813e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), 1814e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, Id, 1815e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 1816e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template); 1817d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 18181fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor return true; 18191fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 18201fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 18213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 18223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1823014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_ConstructorName: { 1824014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 18251fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1826014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 18277c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 18287c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 18291fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 18301fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 18313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1832014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 18333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1834014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_DestructorName: { 1835014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 18361fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1837014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 18382d1c21414199a7452f122598189363a3922605b1Douglas Gregor if (ObjectType) { 1839e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), 1840e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, TemplateName, 1841e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 1842e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template); 1843d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 18442d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 18452d1c21414199a7452f122598189363a3922605b1Douglas Gregor } else { 18467c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 18477c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 18481fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 18491fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 18502d1c21414199a7452f122598189363a3922605b1Douglas Gregor 1851b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (TNK == TNK_Non_template && !Id.DestructorName.get()) { 1852124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(NameLoc, diag::err_destructor_template_id) 1853124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor << Name << SS.getRange(); 18542d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 18552d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 18562d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 18573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1858014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 18593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor default: 18613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 18623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 18633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (TNK == TNK_Non_template) 18653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 18663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the enclosed template argument list. 18683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation LAngleLoc, RAngleLoc; 18693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgList TemplateArgs; 18700278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (Tok.is(tok::less) && 18710278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor ParseTemplateIdAfterTemplateName(Template, Id.StartLocation, 1872059101f922de6eb765601459925f4c8914420b23Douglas Gregor SS, true, LAngleLoc, 18733f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgs, 18743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor RAngleLoc)) 18753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 18763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier || 1878e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_OperatorFunctionId || 1879e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_LiteralOperatorId) { 18803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Form a parsed representation of the template-id to be stored in the 18813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // UnqualifiedId. 18823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateIdAnnotation *TemplateId 188313bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer = TemplateIdAnnotation::Allocate(TemplateArgs.size(), TemplateIds); 18843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18853f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) { 18863f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Name = Id.Identifier; 1887014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = OO_None; 18883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 18893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 1890014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Name = 0; 1891014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = Id.OperatorFunctionId.Operator; 1892014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 18933f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 18943f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1895059101f922de6eb765601459925f4c8914420b23Douglas Gregor TemplateId->SS = SS; 18962b28bf1a8fa6e1c598805374f29e4fbf45e751feBenjamin Kramer TemplateId->TemplateKWLoc = TemplateKWLoc; 18972b5289b6fd7e3d9899868410a498c081c9595662John McCall TemplateId->Template = Template; 18983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Kind = TNK; 18993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->LAngleLoc = LAngleLoc; 19003f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->RAngleLoc = RAngleLoc; 1901314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor ParsedTemplateArgument *Args = TemplateId->getTemplateArgs(); 19023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor for (unsigned Arg = 0, ArgEnd = TemplateArgs.size(); 1903314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor Arg != ArgEnd; ++Arg) 19043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Args[Arg] = TemplateArgs[Arg]; 19053f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setTemplateId(TemplateId); 19073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 19083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 19093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Bundle the template arguments together. 19115354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateArgs); 1912fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara 19133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Constructor and destructor names. 1914f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Type 191555d23c925b058be29b792008ddb7d68f6c4fa9a0Abramo Bagnara = Actions.ActOnTemplateIdType(SS, TemplateKWLoc, 191655d23c925b058be29b792008ddb7d68f6c4fa9a0Abramo Bagnara Template, NameLoc, 1917fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara LAngleLoc, TemplateArgsPtr, RAngleLoc, 1918fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true); 19193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Type.isInvalid()) 19203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 19213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_ConstructorName) 19233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setConstructorName(Type.get(), NameLoc, RAngleLoc); 19243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor else 19253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setDestructorName(Id.StartLocation, Type.get(), RAngleLoc); 19263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 19283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 19293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1930ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse an operator-function-id or conversion-function-id as part 1931ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// of a C++ unqualified-id. 19323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1933ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// This routine is responsible only for parsing the operator-function-id or 1934ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id; it does not handle template arguments in any way. 19353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1936ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 19373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id: [C++ 13.5] 19383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 'operator' operator 19393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1940ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator: one of 19413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// new delete new[] delete[] 19423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// + - * / % ^ & | ~ 19433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ! = < > += -= *= /= %= 19443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ^= &= |= << >> >>= <<= == != 19453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// <= >= && || ++ -- , ->* -> 19463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// () [] 19473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 19483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-function-id: [C++ 12.3.2] 19493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator conversion-type-id 19503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 19513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-type-id: 19523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// type-specifier-seq conversion-declarator[opt] 19533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 19543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-declarator: 19553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ptr-operator conversion-declarator[opt] 19563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \endcode 19573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 19581ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param SS The nested-name-specifier that preceded this unqualified-id. If 19593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 19603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 19613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we are entering the scope of the 19623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 19633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1964ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 1965ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// expression, the type of the base object whose member is being accessed. 1966ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1967ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 1968ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1969ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \returns true if parsing fails, false otherwise. 1970ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregorbool Parser::ParseUnqualifiedIdOperator(CXXScopeSpec &SS, bool EnteringContext, 1971b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1972ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId &Result) { 1973ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 1974ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1975ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'operator' keyword. 1976ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation KeywordLoc = ConsumeToken(); 1977ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1978ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Determine what kind of operator name we have. 1979ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor unsigned SymbolIdx = 0; 1980ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation SymbolLocations[3]; 1981ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Op = OO_None; 1982ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor switch (Tok.getKind()) { 1983ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_new: 1984ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_delete: { 1985ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor bool isNew = Tok.getKind() == tok::kw_new; 1986ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'new' or 'delete'. 1987ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); 19886ee326af4e77e6f05973486097884d7431f2108dRichard Smith // Check for array new/delete. 19896ee326af4e77e6f05973486097884d7431f2108dRichard Smith if (Tok.is(tok::l_square) && 199080ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith (!getLangOpts().CPlusPlus11 || NextToken().isNot(tok::l_square))) { 19914a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '[' and ']'. 19924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 19934a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 19944a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 19954a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 1996ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1997ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 19984a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 19994a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 2000ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_Array_New : OO_Array_Delete; 2001ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 2002ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_New : OO_Delete; 2003ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2004ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2005ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2006ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2007ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 2008ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::Token: \ 2009ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); \ 2010ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_##Name; \ 2011ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2012ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 2013ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#include "clang/Basic/OperatorKinds.def" 2014ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2015ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_paren: { 20164a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '(' and ')'. 20174a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 20184a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 20194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 20204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 2021ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2022ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 20234a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 20244a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 2025ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Call; 2026ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2027ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2028ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2029ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_square: { 20304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '[' and ']'. 20314a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 20324a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 20334a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 20344a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 2035ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2036ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 20374a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 20384a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 2039ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Subscript; 2040ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2041ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2042ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2043ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::code_completion: { 2044ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Code completion for the operator name. 204523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOperatorName(getCurScope()); 20467d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 2047ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Don't try to parse any further. 2048ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2049ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2050ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2051ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor default: 2052ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2053ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2054ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2055ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Op != OO_None) { 2056ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // We have parsed an operator-function-id. 2057ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setOperatorFunctionId(KeywordLoc, Op, SymbolLocations); 2058ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 2059ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 20600486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 20610486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // Parse a literal-operator-id. 20620486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // 2063aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // literal-operator-id: C++11 [over.literal] 2064aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // operator string-literal identifier 2065aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // operator user-defined-string-literal 20660486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 206780ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11 && isTokenStringLiteral()) { 20687fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok.getLocation(), diag::warn_cxx98_compat_literal_operator); 206933762775706e81c17ca774102ceda36049ecc593Richard Smith 207033762775706e81c17ca774102ceda36049ecc593Richard Smith SourceLocation DiagLoc; 207133762775706e81c17ca774102ceda36049ecc593Richard Smith unsigned DiagId = 0; 207233762775706e81c17ca774102ceda36049ecc593Richard Smith 207333762775706e81c17ca774102ceda36049ecc593Richard Smith // We're past translation phase 6, so perform string literal concatenation 207433762775706e81c17ca774102ceda36049ecc593Richard Smith // before checking for "". 2075cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<Token, 4> Toks; 2076cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<SourceLocation, 4> TokLocs; 207733762775706e81c17ca774102ceda36049ecc593Richard Smith while (isTokenStringLiteral()) { 207833762775706e81c17ca774102ceda36049ecc593Richard Smith if (!Tok.is(tok::string_literal) && !DiagId) { 2079aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // C++11 [over.literal]p1: 2080aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // The string-literal or user-defined-string-literal in a 2081aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // literal-operator-id shall have no encoding-prefix [...]. 208233762775706e81c17ca774102ceda36049ecc593Richard Smith DiagLoc = Tok.getLocation(); 208333762775706e81c17ca774102ceda36049ecc593Richard Smith DiagId = diag::err_literal_operator_string_prefix; 208433762775706e81c17ca774102ceda36049ecc593Richard Smith } 208533762775706e81c17ca774102ceda36049ecc593Richard Smith Toks.push_back(Tok); 208633762775706e81c17ca774102ceda36049ecc593Richard Smith TokLocs.push_back(ConsumeStringToken()); 208799831e4677a7e2e051af636221694d60ba31fcdbRichard Smith } 20880486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 208933762775706e81c17ca774102ceda36049ecc593Richard Smith StringLiteralParser Literal(Toks.data(), Toks.size(), PP); 209033762775706e81c17ca774102ceda36049ecc593Richard Smith if (Literal.hadError) 209133762775706e81c17ca774102ceda36049ecc593Richard Smith return true; 209233762775706e81c17ca774102ceda36049ecc593Richard Smith 209333762775706e81c17ca774102ceda36049ecc593Richard Smith // Grab the literal operator's suffix, which will be either the next token 209433762775706e81c17ca774102ceda36049ecc593Richard Smith // or a ud-suffix from the string literal. 209533762775706e81c17ca774102ceda36049ecc593Richard Smith IdentifierInfo *II = 0; 209633762775706e81c17ca774102ceda36049ecc593Richard Smith SourceLocation SuffixLoc; 209733762775706e81c17ca774102ceda36049ecc593Richard Smith if (!Literal.getUDSuffix().empty()) { 209833762775706e81c17ca774102ceda36049ecc593Richard Smith II = &PP.getIdentifierTable().get(Literal.getUDSuffix()); 209933762775706e81c17ca774102ceda36049ecc593Richard Smith SuffixLoc = 210033762775706e81c17ca774102ceda36049ecc593Richard Smith Lexer::AdvanceToTokenCharacter(TokLocs[Literal.getUDSuffixToken()], 210133762775706e81c17ca774102ceda36049ecc593Richard Smith Literal.getUDSuffixOffset(), 21024e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie PP.getSourceManager(), getLangOpts()); 210333762775706e81c17ca774102ceda36049ecc593Richard Smith } else if (Tok.is(tok::identifier)) { 210433762775706e81c17ca774102ceda36049ecc593Richard Smith II = Tok.getIdentifierInfo(); 210533762775706e81c17ca774102ceda36049ecc593Richard Smith SuffixLoc = ConsumeToken(); 210633762775706e81c17ca774102ceda36049ecc593Richard Smith TokLocs.push_back(SuffixLoc); 210733762775706e81c17ca774102ceda36049ecc593Richard Smith } else { 21080486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Diag(Tok.getLocation(), diag::err_expected_ident); 21090486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt return true; 21100486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 21110486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 211233762775706e81c17ca774102ceda36049ecc593Richard Smith // The string literal must be empty. 211333762775706e81c17ca774102ceda36049ecc593Richard Smith if (!Literal.GetString().empty() || Literal.Pascal) { 2114aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // C++11 [over.literal]p1: 2115aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // The string-literal or user-defined-string-literal in a 2116aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // literal-operator-id shall [...] contain no characters 2117aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // other than the implicit terminating '\0'. 211833762775706e81c17ca774102ceda36049ecc593Richard Smith DiagLoc = TokLocs.front(); 211933762775706e81c17ca774102ceda36049ecc593Richard Smith DiagId = diag::err_literal_operator_string_not_empty; 212033762775706e81c17ca774102ceda36049ecc593Richard Smith } 212133762775706e81c17ca774102ceda36049ecc593Richard Smith 212233762775706e81c17ca774102ceda36049ecc593Richard Smith if (DiagId) { 212333762775706e81c17ca774102ceda36049ecc593Richard Smith // This isn't a valid literal-operator-id, but we think we know 212433762775706e81c17ca774102ceda36049ecc593Richard Smith // what the user meant. Tell them what they should have written. 2125cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallString<32> Str; 212633762775706e81c17ca774102ceda36049ecc593Richard Smith Str += "\"\" "; 212733762775706e81c17ca774102ceda36049ecc593Richard Smith Str += II->getName(); 212833762775706e81c17ca774102ceda36049ecc593Richard Smith Diag(DiagLoc, DiagId) << FixItHint::CreateReplacement( 212933762775706e81c17ca774102ceda36049ecc593Richard Smith SourceRange(TokLocs.front(), TokLocs.back()), Str); 213033762775706e81c17ca774102ceda36049ecc593Richard Smith } 213133762775706e81c17ca774102ceda36049ecc593Richard Smith 213233762775706e81c17ca774102ceda36049ecc593Richard Smith Result.setLiteralOperatorId(II, KeywordLoc, SuffixLoc); 21333e518bda00d710754ca077cf9be8dd821e16a854Sean Hunt return false; 21340486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 2135ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2136ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse a conversion-function-id. 2137ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2138ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-function-id: [C++ 12.3.2] 2139ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator conversion-type-id 2140ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2141ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-type-id: 2142ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // type-specifier-seq conversion-declarator[opt] 2143ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2144ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-declarator: 2145ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operator conversion-declarator[opt] 2146ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2147ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the type-specifier-seq. 21480b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 2149f6e6fc801c700c7b8ac202ddbe550d9843a816fcDouglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) // FIXME: ObjectType? 2150ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2151ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2152ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 2153ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operators. 215414f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith Declarator D(DS, Declarator::ConversionIdContext); 2155ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 2156ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2157ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Finish up the type. 2158f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Ty = Actions.ActOnTypeName(getCurScope(), D); 2159ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Ty.isInvalid()) 2160ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2161ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2162ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Note that this is a conversion-function-id. 2163ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setConversionFunctionId(KeywordLoc, Ty.get(), 2164ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor D.getSourceRange().getEnd()); 2165ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 2166ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 2167ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2168ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse a C++ unqualified-id (or a C identifier), which describes the 2169ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// name of an entity. 2170ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2171ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 2172ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// unqualified-id: [C++ expr.prim.general] 2173ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// identifier 2174ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator-function-id 2175ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id 2176ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// [C++0x] literal-operator-id [TODO] 2177ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// ~ class-name 2178ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template-id 2179ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2180ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \endcode 2181ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 21821ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param SS The nested-name-specifier that preceded this unqualified-id. If 2183ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 2184ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2185ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param EnteringContext whether we are entering the scope of the 2186ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// nested-name-specifier. 2187ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 21883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowDestructorName whether we allow parsing of a destructor name. 21893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 21903f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowConstructorName whether we allow parsing a constructor name. 21913f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 219246df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 219346df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 219446df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 21953f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 21963f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 21973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if parsing fails, false otherwise. 21983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedId(CXXScopeSpec &SS, bool EnteringContext, 21993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowDestructorName, 22003f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowConstructorName, 2201b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 2202e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation& TemplateKWLoc, 22033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor UnqualifiedId &Result) { 22040278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 22050278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // Handle 'A::template B'. This is for template-ids which have not 22060278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // already been annotated by ParseOptionalCXXScopeSpecifier(). 22070278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor bool TemplateSpecified = false; 22084e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::kw_template) && 22090278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (ObjectType || SS.isSet())) { 22100278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified = true; 22110278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateKWLoc = ConsumeToken(); 22120278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor } 22130278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 22143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 22153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // identifier 22163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (when it hasn't already been annotated) 22173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::identifier)) { 22183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Consume the identifier. 22193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Id = Tok.getIdentifierInfo(); 22203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation IdLoc = ConsumeToken(); 22213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22224e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 2223b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // If we're not in C++, only identifiers matter. Record the 2224b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // identifier and return. 2225b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor Result.setIdentifier(Id, IdLoc); 2226b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor return false; 2227b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor } 2228b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor 22293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (AllowConstructorName && 223023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*Id, getCurScope(), &SS)) { 22313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed a constructor name. 2232fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType Ty = Actions.getTypeName(*Id, IdLoc, getCurScope(), 2233fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara &SS, false, false, 2234fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType(), 2235fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true, 2236fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*NonTrivialTypeSourceInfo=*/true); 2237fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara Result.setConstructorName(Ty, IdLoc, IdLoc); 22383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 22393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed an identifier. 22403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setIdentifier(Id, IdLoc); 22413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 22423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // If the next token is a '<', we may have a template. 22440278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) 2245e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, Id, IdLoc, 2246e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2247e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 22483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 22503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 22513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 22533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (already parsed and annotated) 22543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::annot_template_id)) { 225525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 22560efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 22570efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // If the template-name names the current class, then this is a constructor 22580efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (AllowConstructorName && TemplateId->Name && 225923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*TemplateId->Name, getCurScope(), &SS)) { 22600efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (SS.isSet()) { 22610efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // C++ [class.qual]p2 specifies that a qualified template-name 22620efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // is taken as the constructor name where a constructor can be 22630efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // declared. Thus, the template arguments are extraneous, so 22640efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // complain about them and remove them entirely. 22650efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Diag(TemplateId->TemplateNameLoc, 22660efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor diag::err_out_of_line_constructor_template_id) 22670efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor << TemplateId->Name 2268849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval( 22690efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor SourceRange(TemplateId->LAngleLoc, TemplateId->RAngleLoc)); 2270fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType Ty = Actions.getTypeName(*TemplateId->Name, 2271fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara TemplateId->TemplateNameLoc, 2272fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara getCurScope(), 2273fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara &SS, false, false, 2274fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType(), 2275fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true, 2276fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*NontrivialTypeSourceInfo=*/true); 2277fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara Result.setConstructorName(Ty, TemplateId->TemplateNameLoc, 22780efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->RAngleLoc); 22790efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 22800efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 22810efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 22820efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 22830efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setConstructorTemplateId(TemplateId); 22840efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 22850efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 22860efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 22870efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 22883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have already parsed a template-id; consume the annotation token as 22893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // our unqualified-id. 22900efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setTemplateId(TemplateId); 2291e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc = TemplateId->TemplateKWLoc; 22923f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor ConsumeToken(); 22933f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 22943f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 22953f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22963f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 22973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // operator-function-id 22983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // conversion-function-id 22993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::kw_operator)) { 2300ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, Result)) 23013f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 23023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 2303e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // If we have an operator-function-id or a literal-operator-id and the next 2304e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // token is a '<', we may have a 2305ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2306ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // template-id: 2307ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator-function-id < template-argument-list[opt] > 2308e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if ((Result.getKind() == UnqualifiedId::IK_OperatorFunctionId || 2309e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Result.getKind() == UnqualifiedId::IK_LiteralOperatorId) && 23100278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (TemplateSpecified || Tok.is(tok::less))) 2311e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, 2312e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 0, SourceLocation(), 2313e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2314e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 23153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 23173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 23183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23194e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && 2320b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor (AllowDestructorName || SS.isSet()) && Tok.is(tok::tilde)) { 23213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // C++ [expr.unary.op]p10: 23223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // There is an ambiguity in the unary-expression ~X(), where X is a 23233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // class-name. The ambiguity is resolved in favor of treating ~ as a 23243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unary complement rather than treating ~X as referring to a destructor. 23253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the '~'. 23273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 232853a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie 232953a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie if (SS.isEmpty() && Tok.is(tok::kw_decltype)) { 233053a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie DeclSpec DS(AttrFactory); 233153a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie SourceLocation EndLoc = ParseDecltypeSpecifier(DS); 233253a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie if (ParsedType Type = Actions.getDestructorType(DS, ObjectType)) { 233353a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie Result.setDestructorName(TildeLoc, Type, EndLoc); 233453a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie return false; 233553a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie } 233653a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie return true; 233753a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie } 23383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name. 23403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.isNot(tok::identifier)) { 2341124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 23423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 23433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 23443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name (or template-name in a simple-template-id). 23463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *ClassName = Tok.getIdentifierInfo(); 23473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation ClassNameLoc = ConsumeToken(); 23483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23490278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) { 2350b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Result.setDestructorName(TildeLoc, ParsedType(), ClassNameLoc); 2351e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, 2352e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ClassName, ClassNameLoc, 2353e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2354e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 23552d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 23562d1c21414199a7452f122598189363a3922605b1Douglas Gregor 23573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Note that this is a destructor name. 2358b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType Ty = Actions.getDestructorName(TildeLoc, *ClassName, 2359b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ClassNameLoc, getCurScope(), 2360b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall SS, ObjectType, 2361b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext); 2362124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor if (!Ty) 23633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 2364124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor 23653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setDestructorName(TildeLoc, Ty, ClassNameLoc); 23663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 23673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 23683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23692d1c21414199a7452f122598189363a3922605b1Douglas Gregor Diag(Tok, diag::err_expected_unqualified_id) 23704e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie << getLangOpts().CPlusPlus; 23713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 23723f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 23733f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 23754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 23761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 237759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 237859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 237959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 23804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 23814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 23824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 23834c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 23844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 23854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 23864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 23874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 23884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 23894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 2390cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 2391cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 2392893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor/// [GNU] attributes type-specifier-seq new-declarator[opt] 2393cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 2394cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 2395cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 2396cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 2397cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 23984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 23994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 2400dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] braced-init-list 24014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 240260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 240359232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 240459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 240559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 24064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 24084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 24094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24104e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer ExprVector PlacementArgs; 24114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 24124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24134bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor SourceRange TypeIdParens; 24140b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 24150b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::CXXNewContext); 24164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 24174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 24184a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 24194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 24204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor PlacementLParen = T.getOpenLocation(); 2421cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 24228fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 242320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2424cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 24254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24264a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 24274a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor PlacementRParen = T.getCloseLocation(); 2428cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 24298fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 243020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2431cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 24324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2433cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 24344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 24354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor TypeIdParens = T.getRange(); 24364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 24374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 24384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 24394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 24404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 24414a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 2442893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2443cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 2444ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2445cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 24464a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 24474a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor TypeIdParens = T.getRange(); 24484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2449893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2450cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2451cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2452ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2453ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2454cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2455cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2456ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 24574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 24584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 24594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2460cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 2461cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 2462893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2463cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2464cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2465ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2466ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2467cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2468cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2469ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 24704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 2471eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 24728fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 247320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2474cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 24754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24762aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl ExprResult Initializer; 24774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 24792aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 24804e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer ExprVector ConstructorArgs; 24814a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 24824a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 24834a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor ConstructorLParen = T.getOpenLocation(); 24844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 24854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 2486cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 24878fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 248820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2489cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 24904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 24914a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 24924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor ConstructorRParen = T.getCloseLocation(); 2493cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 24948fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 249520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2496cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 24972aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl Initializer = Actions.ActOnParenListExpr(ConstructorLParen, 24982aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl ConstructorRParen, 24993fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer ConstructorArgs); 250080ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith } else if (Tok.is(tok::l_brace) && getLangOpts().CPlusPlus11) { 25017fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok.getLocation(), 25027fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_generalized_initializer_lists); 25032aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl Initializer = ParseBraceInitializer(); 25044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 25052aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl if (Initializer.isInvalid()) 25062aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl return Initializer; 25074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2508f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 25093fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer PlacementArgs, PlacementRParen, 25102aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl TypeIdParens, DeclaratorInfo, Initializer.take()); 25114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 25124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 25144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 25154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 25164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 25174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 25184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 25194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 252059232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 25214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 25224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 25234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 25246ee326af4e77e6f05973486097884d7431f2108dRichard Smith // An array-size expression can't start with a lambda. 25256ee326af4e77e6f05973486097884d7431f2108dRichard Smith if (CheckProhibitedCXX11Attribute()) 25266ee326af4e77e6f05973486097884d7431f2108dRichard Smith continue; 25276ee326af4e77e6f05973486097884d7431f2108dRichard Smith 25284a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 25294a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 25304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 253160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Size(first ? ParseExpression() 25322f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 25330e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 25344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 25358fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_square, StopAtSemi); 25364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 25374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 25384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 25394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 25410b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall 2542ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling // Attributes here appertain to the array type. C++11 [expr.new]p5. 25436ee326af4e77e6f05973486097884d7431f2108dRichard Smith ParsedAttributes Attrs(AttrFactory); 25444e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(Attrs); 25456ee326af4e77e6f05973486097884d7431f2108dRichard Smith 25460b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall D.AddTypeInfo(DeclaratorChunk::getArray(0, 25477f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall /*static=*/false, /*star=*/false, 25484a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Size.release(), 25494a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getOpenLocation(), 25504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()), 25516ee326af4e77e6f05973486097884d7431f2108dRichard Smith Attrs, T.getCloseLocation()); 25524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25534a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 25544c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 25554c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 25564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 25574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 25594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 25604c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 25614c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 25624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 25634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 25644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 25654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 25664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 25674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 2568ca0408fb49c1370430672acf2d770b7151cf71deJohn McCallbool Parser::ParseExpressionListOrTypeId( 25695f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVectorImpl<Expr*> &PlacementArgs, 257059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 25714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 25724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 2573cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 2574ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 2575cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 2576eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 25774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 25784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 25804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 25814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 25824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 25834c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 25844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 25864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 25874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 258859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 258959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 259059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 259159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 259259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 25934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 25944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 25954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 259660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 259759232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 259859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 259959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 26004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 26014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 26024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 26036ee326af4e77e6f05973486097884d7431f2108dRichard Smith if (Tok.is(tok::l_square) && NextToken().is(tok::r_square)) { 2604950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // C++11 [expr.delete]p1: 2605950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // Whenever the delete keyword is followed by empty square brackets, it 2606950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // shall be interpreted as [array delete]. 2607950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // [Footnote: A lambda expression with a lambda-introducer that consists 2608950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // of empty square brackets can follow the delete keyword if 2609950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // the lambda expression is enclosed in parentheses.] 2610950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // FIXME: Produce a better diagnostic if the '[]' is unambiguously a 2611950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // lambda-introducer. 26124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 26134a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 26144a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 26154a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 26164a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 26174a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 261820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 26194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 26204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 262160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Operand(ParseCastExpression(false)); 26220e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 26233fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Operand; 26244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 26259ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, Operand.take()); 26264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 262764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 26281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) { 262964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 2630b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie default: llvm_unreachable("Not a known unary type trait."); 263164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 26329ef9875bbe19dc9f73c6c95b803d9a4945168690Joao Matos case tok::kw___has_nothrow_move_assign: return UTT_HasNothrowMoveAssign; 263364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 263420c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 263564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 26369ef9875bbe19dc9f73c6c95b803d9a4945168690Joao Matos case tok::kw___has_trivial_move_assign: return UTT_HasTrivialMoveAssign; 2637023df37c27ee8035664fb62f206ca58f4e2a169dSean Hunt case tok::kw___has_trivial_constructor: 2638023df37c27ee8035664fb62f206ca58f4e2a169dSean Hunt return UTT_HasTrivialDefaultConstructor; 26399ef9875bbe19dc9f73c6c95b803d9a4945168690Joao Matos case tok::kw___has_trivial_move_constructor: 26409ef9875bbe19dc9f73c6c95b803d9a4945168690Joao Matos return UTT_HasTrivialMoveConstructor; 264120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 264264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 264364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 264464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 264520c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_arithmetic: return UTT_IsArithmetic; 264620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_array: return UTT_IsArray; 264764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 264820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_complete_type: return UTT_IsCompleteType; 264920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_compound: return UTT_IsCompound; 265020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_const: return UTT_IsConst; 265164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 265264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 26535e9392ba18f5925e26cc5714d1412eda0d219826Douglas Gregor case tok::kw___is_final: return UTT_IsFinal; 265420c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_floating_point: return UTT_IsFloatingPoint; 265520c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_function: return UTT_IsFunction; 265620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_fundamental: return UTT_IsFundamental; 265720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_integral: return UTT_IsIntegral; 2658ea30e2f8667668173cf7433c3c80cf603bd922a4John McCall case tok::kw___is_interface_class: return UTT_IsInterfaceClass; 265920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_lvalue_reference: return UTT_IsLvalueReference; 266020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_function_pointer: return UTT_IsMemberFunctionPointer; 266120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_object_pointer: return UTT_IsMemberObjectPointer; 266220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_pointer: return UTT_IsMemberPointer; 266320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_object: return UTT_IsObject; 26644e61ddd644e9c6293697a966d98d7c1905cf63a8Chandler Carruth case tok::kw___is_literal: return UTT_IsLiteral; 26653840281126e7d10552c55f6fd8b1ec9483898906Chandler Carruth case tok::kw___is_literal_type: return UTT_IsLiteral; 266664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 266720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_pointer: return UTT_IsPointer; 266864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 266920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_reference: return UTT_IsReference; 267020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_rvalue_reference: return UTT_IsRvalueReference; 267120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_scalar: return UTT_IsScalar; 26727121bdb91b86f6053765bda18dd0a8a118929aceDavid Majnemer case tok::kw___is_sealed: return UTT_IsSealed; 267320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_signed: return UTT_IsSigned; 267420c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_standard_layout: return UTT_IsStandardLayout; 267520c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_trivial: return UTT_IsTrivial; 2676feb375d31b7e9108b04a9f55b721d5e0c793a558Sean Hunt case tok::kw___is_trivially_copyable: return UTT_IsTriviallyCopyable; 267764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 267820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_unsigned: return UTT_IsUnsigned; 267920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_void: return UTT_IsVoid; 268020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_volatile: return UTT_IsVolatile; 268164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 26826ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 26836ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 26846ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichetstatic BinaryTypeTrait BinaryTypeTraitFromTokKind(tok::TokenKind kind) { 26856ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet switch(kind) { 268638c2b730a8553fa1cf369d0c5567f8b5d0a3dda8Francois Pichet default: llvm_unreachable("Not a known binary type trait"); 2687f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___is_base_of: return BTT_IsBaseOf; 268820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_convertible: return BTT_IsConvertible; 268920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_same: return BTT_IsSame; 2690f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___builtin_types_compatible_p: return BTT_TypeCompatible; 26919f3611365d0f2297a910cf246e056708726ed10aDouglas Gregor case tok::kw___is_convertible_to: return BTT_IsConvertibleTo; 269225d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor case tok::kw___is_trivially_assignable: return BTT_IsTriviallyAssignable; 26936ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 269464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 269564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 26964ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregorstatic TypeTrait TypeTraitFromTokKind(tok::TokenKind kind) { 26974ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor switch (kind) { 26984ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor default: llvm_unreachable("Not a known type trait"); 26994ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor case tok::kw___is_trivially_constructible: 27004ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return TT_IsTriviallyConstructible; 27014ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 27024ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor} 27034ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 270421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegleystatic ArrayTypeTrait ArrayTypeTraitFromTokKind(tok::TokenKind kind) { 270521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch(kind) { 270621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley default: llvm_unreachable("Not a known binary type trait"); 270721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_rank: return ATT_ArrayRank; 270821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_extent: return ATT_ArrayExtent; 270921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 271021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 271121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2712552622067dc45013d240f73952fece703f5e63bdJohn Wiegleystatic ExpressionTrait ExpressionTraitFromTokKind(tok::TokenKind kind) { 2713552622067dc45013d240f73952fece703f5e63bdJohn Wiegley switch(kind) { 2714b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie default: llvm_unreachable("Not a known unary expression trait."); 2715552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_lvalue_expr: return ET_IsLValueExpr; 2716552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_rvalue_expr: return ET_IsRValueExpr; 2717552622067dc45013d240f73952fece703f5e63bdJohn Wiegley } 2718552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2719552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 272064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 272164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 272264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 272364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 272464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 272564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 272664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 272760d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseUnaryTypeTrait() { 272864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 272964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 273064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 27314a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 27324a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 273364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 273464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 273564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 273664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 273764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 2738809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 273964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 27404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 274164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 2742809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 2743809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 2744809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 27454a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, Ty.get(), T.getCloseLocation()); 274664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 2747f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 27486ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// ParseBinaryTypeTrait - Parse the built-in binary type-trait 27496ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// pseudo-functions that allow implementation of the TR1/C++0x type traits 27506ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// templates. 27516ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 27526ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// primary-expression: 27536ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// [GNU] binary-type-trait '(' type-id ',' type-id ')' 27546ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 27556ad6f2848d7652ab2991286eb48be440d3493b28Francois PichetExprResult Parser::ParseBinaryTypeTrait() { 27566ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet BinaryTypeTrait BTT = BinaryTypeTraitFromTokKind(Tok.getKind()); 27576ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SourceLocation Loc = ConsumeToken(); 27586ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 27594a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 27604a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 27616ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 27626ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 27636ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult LhsTy = ParseTypeName(); 27646ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (LhsTy.isInvalid()) { 27658fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 27666ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 27676ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 27686ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 27696ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (ExpectAndConsume(tok::comma, diag::err_expected_comma)) { 27708fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 27716ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 27726ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 27736ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 27746ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult RhsTy = ParseTypeName(); 27756ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (RhsTy.isInvalid()) { 27768fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 27776ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 27786ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 27796ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 27804a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 27816ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 27824a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnBinaryTypeTrait(BTT, Loc, LhsTy.get(), RhsTy.get(), 27834a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 27846ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 27856ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 27864ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// \brief Parse the built-in type-trait pseudo-functions that allow 27874ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// implementation of the TR1/C++11 type traits templates. 27884ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// 27894ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// primary-expression: 27904ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// type-trait '(' type-id-seq ')' 27914ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// 27924ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// type-id-seq: 27934ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// type-id ...[opt] type-id-seq[opt] 27944ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// 27954ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas GregorExprResult Parser::ParseTypeTrait() { 27964ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor TypeTrait Kind = TypeTraitFromTokKind(Tok.getKind()); 27974ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor SourceLocation Loc = ConsumeToken(); 27984ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 27994ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor BalancedDelimiterTracker Parens(*this, tok::l_paren); 28004ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Parens.expectAndConsume(diag::err_expected_lparen)) 28014ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 28024ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 2803cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<ParsedType, 2> Args; 28044ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor do { 28054ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor // Parse the next type. 28064ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor TypeResult Ty = ParseTypeName(); 28074ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Ty.isInvalid()) { 28084ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Parens.skipToEnd(); 28094ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 28104ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 28114ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 28124ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor // Parse the ellipsis, if present. 28134ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Tok.is(tok::ellipsis)) { 28144ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Ty = Actions.ActOnPackExpansion(Ty.get(), ConsumeToken()); 28154ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Ty.isInvalid()) { 28164ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Parens.skipToEnd(); 28174ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 28184ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 28194ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 28204ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 28214ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor // Add this type to the list of arguments. 28224ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Args.push_back(Ty.get()); 28234ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 28244ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Tok.is(tok::comma)) { 28254ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor ConsumeToken(); 28264ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor continue; 28274ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 28284ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 28294ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor break; 28304ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } while (true); 28314ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 28324ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Parens.consumeClose()) 28334ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 28344ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 28354ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return Actions.ActOnTypeTrait(Kind, Loc, Args, Parens.getCloseLocation()); 28364ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor} 28374ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 283821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// ParseArrayTypeTrait - Parse the built-in array type-trait 283921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// pseudo-functions. 284021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 284121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// primary-expression: 284221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_rank' '(' type-id ')' 284321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_extent' '(' type-id ',' expression ')' 284421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 284521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John WiegleyExprResult Parser::ParseArrayTypeTrait() { 284621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ArrayTypeTrait ATT = ArrayTypeTraitFromTokKind(Tok.getKind()); 284721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SourceLocation Loc = ConsumeToken(); 284821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 28494a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 28504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 285121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 285221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 285321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley TypeResult Ty = ParseTypeName(); 285421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (Ty.isInvalid()) { 28558fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::comma, StopAtSemi); 28568fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 285721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 285821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 285921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 286021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch (ATT) { 286121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayRank: { 28624a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 28634a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), NULL, 28644a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 286521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 286621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayExtent: { 286721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (ExpectAndConsume(tok::comma, diag::err_expected_comma)) { 28688fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 286921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 287021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 287121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 287221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ExprResult DimExpr = ParseExpression(); 28734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 287421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 28754a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), DimExpr.get(), 28764a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 287721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 287821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 28793026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie llvm_unreachable("Invalid ArrayTypeTrait!"); 288021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 288121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2882552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// ParseExpressionTrait - Parse built-in expression-trait 2883552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// pseudo-functions like __is_lvalue_expr( xxx ). 2884552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2885552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// primary-expression: 2886552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// [Embarcadero] expression-trait '(' expression ')' 2887552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2888552622067dc45013d240f73952fece703f5e63bdJohn WiegleyExprResult Parser::ParseExpressionTrait() { 2889552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExpressionTrait ET = ExpressionTraitFromTokKind(Tok.getKind()); 2890552622067dc45013d240f73952fece703f5e63bdJohn Wiegley SourceLocation Loc = ConsumeToken(); 2891552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 28924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 28934a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 2894552622067dc45013d240f73952fece703f5e63bdJohn Wiegley return ExprError(); 2895552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2896552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExprResult Expr = ParseExpression(); 2897552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 28984a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 2899552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 29004a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnExpressionTrait(ET, Loc, Expr.get(), 29014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 2902552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2903552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2904552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2905f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 2906f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 2907f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 290860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 2909f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 2910b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &CastTy, 29114a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker &Tracker) { 29124e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Should only be called for C++!"); 2913f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 2914f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 2915f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 291660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(true); 2917b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall CastTy = ParsedType(); 2918f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2919f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 2920f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2921f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 2922f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 2923f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 2924f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 2925f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2926f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 2927f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 2928f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 2929f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2930f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 2931a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 2932f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // 2933f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // It uses a scheme similar to parsing inline methods. The parenthesized 2934f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // tokens are cached, the context that follows is determined (possibly by 2935f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parsing a cast-expression), and then we re-introduce the cached tokens 2936f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // into the token stream and parse them appropriately. 2937f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 29381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenParseOption ParseAs; 2939f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis CachedTokens Toks; 2940f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2941f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Store the tokens of the parentheses. We will parse them after we determine 2942f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // the context that follows them. 294314b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis if (!ConsumeAndStoreUntil(tok::r_paren, Toks)) { 2944f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We didn't find the ')' we expected. 29454a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 2946f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 2947f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2948f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2949f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 2950f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = CompoundLiteral; 2951f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } else { 2952f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis bool NotCastExpr; 2953b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // FIXME: Special-case ++ and --: "(S())++;" is not a cast-expression 2954b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman if (Tok.is(tok::l_paren) && NextToken().is(tok::r_paren)) { 2955b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr = true; 2956b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } else { 2957b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // Try parsing the cast-expression that may follow. 2958b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // If it is not a cast-expression, NotCastExpr will be true and no token 2959b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // will be consumed. 2960b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman Result = ParseCastExpression(false/*isUnaryExpression*/, 2961b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman false/*isAddressofOperand*/, 2962b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall NotCastExpr, 29630a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // type-id has priority. 2964cd78e612d6fa8e214e6a6bb0e739a0c3e419df91Kaelyn Uhrain IsTypeCast); 2965b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } 2966f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2967f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // If we parsed a cast-expression, it's really a type-id, otherwise it's 2968f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // an expression. 2969f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = NotCastExpr ? SimpleExpr : CastExpr; 2970f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2971f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 29721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The current token should go after the cached tokens. 2973f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Toks.push_back(Tok); 2974f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Re-enter the stored parenthesized tokens into the token stream, so we may 2975f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parse them now. 2976f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis PP.EnterTokenStream(Toks.data(), Toks.size(), 2977f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis true/*DisableMacroExpansion*/, false/*OwnsTokens*/); 2978f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Drop the current token and bring the first cached one. It's the same token 2979f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // as when we entered this function. 2980f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ConsumeAnyToken(); 2981f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2982f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs >= CompoundLiteral) { 29830a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // Parse the type declarator. 29840a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 29850a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 29860a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 29870a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 2988f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2989f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Match the ')'. 29904a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 2991f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2992f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs == CompoundLiteral) { 2993f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ExprType = CompoundLiteral; 29940a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis TypeResult Ty = ParseTypeName(); 29954a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return ParseCompoundLiteralExpression(Ty.get(), 29964a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getOpenLocation(), 29974a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getCloseLocation()); 2998f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } 29991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3000f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We parsed '(' type-id ')' and the thing after it wasn't a '{'. 3001f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == CastExpr); 3002f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 30030a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis if (DeclaratorInfo.isInvalidType()) 3004f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ExprError(); 3005f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 3006f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Result is what ParseCastExpression returned earlier. 3007f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 30084a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCastExpr(getCurScope(), Tracker.getOpenLocation(), 30094a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor DeclaratorInfo, CastTy, 30104a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getCloseLocation(), Result.take()); 30113fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 3012f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 30131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3014f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Not a compound literal, and not followed by a cast-expression. 3015f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == SimpleExpr); 3016f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 3017f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 3018f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Result = ParseExpression(); 3019f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 30204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnParenExpr(Tracker.getOpenLocation(), 30214a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tok.getLocation(), Result.take()); 3022f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 3023f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 3024f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 30258fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 3026f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 3027f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 30281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30294a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 30303fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 3031f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 3032