ParseExprCXX.cpp revision 9ef9875bbe19dc9f73c6c95b803d9a4945168690
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ParseExprCXX.cpp - C++ Expression Parsing ------------------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the Expression parsing implementation for C++. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 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 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic int SelectDigraphErrorMessage(tok::TokenKind Kind) { 27ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith switch (Kind) { 28ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_template: return 0; 29ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_const_cast: return 1; 30ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_dynamic_cast: return 2; 31ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_reinterpret_cast: return 3; 32ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_static_cast: return 4; 33ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith default: 34b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Unknown type for digraph error message."); 35ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith } 36ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 37ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 38ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Are the two tokens adjacent in the same source file? 3919a2702042b7e3ee838cca458b35f607111a3897Richard Smithbool Parser::areTokensAdjacent(const Token &First, const Token &Second) { 40ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceManager &SM = PP.getSourceManager(); 41ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceLocation FirstLoc = SM.getSpellingLoc(First.getLocation()); 42a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation FirstEnd = FirstLoc.getLocWithOffset(First.getLength()); 43ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith return FirstEnd == SM.getSpellingLoc(Second.getLocation()); 44ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 45ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 46ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Suggest fixit for "<::" after a cast. 47ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic void FixDigraph(Parser &P, Preprocessor &PP, Token &DigraphToken, 48ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Token &ColonToken, tok::TokenKind Kind, bool AtDigraph) { 49ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Pull '<:' and ':' off token stream. 50ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 51ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(DigraphToken); 52ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(ColonToken); 53ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 54ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceRange Range; 55ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setBegin(DigraphToken.getLocation()); 56ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setEnd(ColonToken.getLocation()); 57ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith P.Diag(DigraphToken.getLocation(), diag::err_missing_whitespace_digraph) 58ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << SelectDigraphErrorMessage(Kind) 59ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << FixItHint::CreateReplacement(Range, "< ::"); 60ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 61ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Update token information to reflect their change in token type. 62ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setKind(tok::coloncolon); 63a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis ColonToken.setLocation(ColonToken.getLocation().getLocWithOffset(-1)); 64ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setLength(2); 65ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setKind(tok::less); 66ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setLength(1); 67ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 68ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Push new tokens back to token stream. 69ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(ColonToken); 70ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 71ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(DigraphToken); 72ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 73ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 74950be71c745409e373ae8a834490f9026c8ac222Richard Trieu// Check for '<::' which should be '< ::' instead of '[:' when following 75950be71c745409e373ae8a834490f9026c8ac222Richard Trieu// a template name. 76950be71c745409e373ae8a834490f9026c8ac222Richard Trieuvoid Parser::CheckForTemplateAndDigraph(Token &Next, ParsedType ObjectType, 77950be71c745409e373ae8a834490f9026c8ac222Richard Trieu bool EnteringContext, 78950be71c745409e373ae8a834490f9026c8ac222Richard Trieu IdentifierInfo &II, CXXScopeSpec &SS) { 79c11030ea936f6952deb5a1423ce1648173cd417eRichard Trieu if (!Next.is(tok::l_square) || Next.getLength() != 2) 80950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 81950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 82950be71c745409e373ae8a834490f9026c8ac222Richard Trieu Token SecondToken = GetLookAheadToken(2); 8319a2702042b7e3ee838cca458b35f607111a3897Richard Smith if (!SecondToken.is(tok::colon) || !areTokensAdjacent(Next, SecondToken)) 84950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 85950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 86950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateTy Template; 87950be71c745409e373ae8a834490f9026c8ac222Richard Trieu UnqualifiedId TemplateName; 88950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateName.setIdentifier(&II, Tok.getLocation()); 89950be71c745409e373ae8a834490f9026c8ac222Richard Trieu bool MemberOfUnknownSpecialization; 90950be71c745409e373ae8a834490f9026c8ac222Richard Trieu if (!Actions.isTemplateName(getCurScope(), SS, /*hasTemplateKeyword=*/false, 91950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateName, ObjectType, EnteringContext, 92950be71c745409e373ae8a834490f9026c8ac222Richard Trieu Template, MemberOfUnknownSpecialization)) 93950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 94950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 95950be71c745409e373ae8a834490f9026c8ac222Richard Trieu FixDigraph(*this, PP, Next, SecondToken, tok::kw_template, 96950be71c745409e373ae8a834490f9026c8ac222Richard Trieu /*AtDigraph*/false); 97950be71c745409e373ae8a834490f9026c8ac222Richard Trieu} 98950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 99919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu/// \brief Emits an error for a left parentheses after a double colon. 100919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu/// 101919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu/// When a '(' is found after a '::', emit an error. Attempt to fix the token 102bba91b881c946cbcd200c87dc0a83553506e2458Nico Weber/// stream by removing the '(', and the matching ')' if found. 103919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieuvoid Parser::CheckForLParenAfterColonColon() { 104919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (!Tok.is(tok::l_paren)) 105919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu return; 106919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 107919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu SourceLocation l_parenLoc = ConsumeParen(), r_parenLoc; 108919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok1 = getCurToken(); 109919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (!Tok1.is(tok::identifier) && !Tok1.is(tok::star)) 110919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu return; 111919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 112919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok1.is(tok::identifier)) { 113919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok2 = GetLookAheadToken(1); 114919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok2.is(tok::r_paren)) { 115919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu ConsumeToken(); 116919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu PP.EnterToken(Tok1); 117919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu r_parenLoc = ConsumeParen(); 118919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 119919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } else if (Tok1.is(tok::star)) { 120919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok2 = GetLookAheadToken(1); 121919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok2.is(tok::identifier)) { 122919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok3 = GetLookAheadToken(2); 123919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok3.is(tok::r_paren)) { 124919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu ConsumeToken(); 125919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu ConsumeToken(); 126919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu PP.EnterToken(Tok2); 127919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu PP.EnterToken(Tok1); 128919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu r_parenLoc = ConsumeParen(); 129919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 130919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 131919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 132919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 133919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Diag(l_parenLoc, diag::err_paren_after_colon_colon) 134919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu << FixItHint::CreateRemoval(l_parenLoc) 135919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu << FixItHint::CreateRemoval(r_parenLoc); 136919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu} 137919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 1381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Parse global scope or nested-name-specifier if present. 1392dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1402dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// Parses a C++ global scope specifier ('::') or nested-name-specifier (which 1411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// may be preceded by '::'). Note that this routine will not parse ::new or 1422dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// ::delete; it will just leave them in the token stream. 143eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 144eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 145eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 146eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 147eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 148eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 149eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 150eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 1512dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier 'template'[opt] simple-template-id '::' 1522dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1532dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param SS the scope specifier that will be set to the parsed 1552dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier (or empty) 1562dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ObjectType if this nested-name-specifier is being parsed following 1582dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the "." or "->" of a member access expression, this parameter provides the 1592dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// type of the object whose members are being accessed. 160eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 1612dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \param EnteringContext whether we will be entering into the context of 1622dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the nested-name-specifier after parsing it. 1632dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 164d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param MayBePseudoDestructor When non-NULL, points to a flag that 165d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// indicates whether this nested-name-specifier may be part of a 166d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor name. In this case, the flag will be set false 167d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we don't actually end up parsing a destructor name. Moreorover, 168d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we do end up determining that we are parsing a destructor name, 169d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// the last component of the nested-name-specifier is not parsed as 170d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// part of the scope specifier. 1712db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// 1722db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// \param IsTypename If \c true, this nested-name-specifier is known to be 1732db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// part of a type name. This is used to improve error recovery. 1742db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// 1752db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// \param LastII When non-NULL, points to an IdentifierInfo* that will be 1762db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// filled in with the leading identifier in the last component of the 1772db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// nested-name-specifier, if any. 178b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor/// 1799ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// \returns true if there was an error parsing a scope specifier 180495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS, 181b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 182b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor bool EnteringContext, 1834147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet bool *MayBePseudoDestructor, 1842db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith bool IsTypename, 1852db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith IdentifierInfo **LastII) { 1864e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 1877452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 1881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 189eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 1902db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith assert(!LastII && "want last identifier but have already annotated scope"); 191c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Actions.RestoreNestedNameSpecifierAnnotation(Tok.getAnnotationValue(), 192c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.getAnnotationRange(), 193c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor SS); 194eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 1959ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 196eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 197e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 1982db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith if (LastII) 1992db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith *LastII = 0; 2002db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith 20139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 20239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 2035b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 2045b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 2055b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 2065b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 2075b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 2081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 2102e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXGlobalScopeSpecifier(getCurScope(), ConsumeToken(), SS)) 2112e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor return true; 212919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 213919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu CheckForLParenAfterColonColon(); 214919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 21539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 216eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 217eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 218d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor bool CheckForDestructor = false; 219d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (MayBePseudoDestructor && *MayBePseudoDestructor) { 220d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CheckForDestructor = true; 221d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = false; 222d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 223d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 22442d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Tok.is(tok::kw_decltype) || Tok.is(tok::annot_decltype)) { 22542d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie DeclSpec DS(AttrFactory); 22642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation DeclLoc = Tok.getLocation(); 22742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation EndLoc = ParseDecltypeSpecifier(DS); 22842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Tok.isNot(tok::coloncolon)) { 22942d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie AnnotateExistingDecltypeSpecifier(DS, DeclLoc, EndLoc); 23042d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie return false; 23142d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie } 23242d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 23342d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation CCLoc = ConsumeToken(); 23442d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Actions.ActOnCXXNestedNameSpecifierDecltype(SS, DS, CCLoc)) 23542d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SS.SetInvalid(SourceRange(DeclLoc, CCLoc)); 23642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 23742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie HasScopeSpecifier = true; 23842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie } 23942d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 24039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 2412dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (HasScopeSpecifier) { 2422dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // C++ [basic.lookup.classref]p5: 2432dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If the qualified-id has the form 2443b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 2452dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // ::class-name-or-namespace-name::... 2463b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 2472dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // the class-name-or-namespace-name is looked up in global scope as a 2482dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // class-name or namespace-name. 2492dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // 2502dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // To implement this, we clear out the object type as soon as we've 2512dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // seen a leading '::' or part of a nested-name-specifier. 252b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ObjectType = ParsedType(); 25381b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor 25481b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor if (Tok.is(tok::code_completion)) { 25581b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // Code completion for a nested-name-specifier, where the code 25681b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // code completion token follows the '::'. 25723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteQualifiedId(getCurScope(), SS, EnteringContext); 258b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Include code completion token into the range of the scope otherwise 259b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // when we try to annotate the scope tokens the dangling code completion 260b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // token will cause assertion in 261b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Preprocessor::AnnotatePreviousCachedTokens. 2627d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis SS.setEndLoc(Tok.getLocation()); 2637d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 2647d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return true; 26581b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor } 2662dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor } 2671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 26977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // nested-name-specifier 'template'[opt] simple-template-id '::' 27077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 27177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // Parse the optional 'template' keyword, then make sure we have 27277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // 'identifier <' after it. 27377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.is(tok::kw_template)) { 2742dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If we don't have a scope specifier or an object type, this isn't a 275eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // nested-name-specifier, since they aren't allowed to start with 276eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // 'template'. 2772dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (!HasScopeSpecifier && !ObjectType) 278eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman break; 279eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman 2807bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TentativeParsingAction TPA(*this); 28177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner SourceLocation TemplateKWLoc = ConsumeToken(); 282ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 283ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId TemplateName; 284ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Tok.is(tok::identifier)) { 285ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 2867bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 287ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 288ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else if (Tok.is(tok::kw_operator)) { 289ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, 2907bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName)) { 2917bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 292ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2937bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 294ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 295e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if (TemplateName.getKind() != UnqualifiedId::IK_OperatorFunctionId && 296e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt TemplateName.getKind() != UnqualifiedId::IK_LiteralOperatorId) { 297ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Diag(TemplateName.getSourceRange().getBegin(), 298ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor diag::err_id_after_template_in_nested_name_spec) 299ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor << TemplateName.getSourceRange(); 3007bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 301ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 302ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 303ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 3047bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 30577cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 30677cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 3071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3087bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // If the next token is not '<', we have a qualified-id that refers 3097bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // to a template name, such as T::template apply, but is not a 3107bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // template-id. 3117bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor if (Tok.isNot(tok::less)) { 3127bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 3137bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor break; 3147bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 3157bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor 3167bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // Commit to parsing the template-id. 3177bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 318d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateTy Template; 319e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (TemplateNameKind TNK 320e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara = Actions.ActOnDependentTemplateName(getCurScope(), 321e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, TemplateName, 322e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 323e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template)) { 324e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateKWLoc, 325e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 326d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 327d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } else 3289ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 3291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner continue; 33177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 3321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 3341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We have 33539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 33639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // simple-template-id '::' 33739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 33839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // So we need to check whether the simple-template-id is of the 339c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // right kind (it should name a type or be dependent), and then 340c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // convert it into a type within the nested-name-specifier. 34125a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 342d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde)) { 343d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 3449ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 345d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 346d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 3472db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith if (LastII) 3482db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith *LastII = TemplateId->Name; 3492db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith 3506cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor // Consume the template-id token. 3516cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor ConsumeToken(); 3526cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 3536cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 3546cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 3551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3566796fc1adcaf57c38d072a238b016b2834afbe0dDavid Blaikie HasScopeSpecifier = true; 3576cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 3585354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), 3596cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->NumArgs); 3606cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 3616cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), 362e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, 363e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateId->TemplateKWLoc, 3646cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->Template, 3656cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->TemplateNameLoc, 3666cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->LAngleLoc, 3676cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateArgsPtr, 3686cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->RAngleLoc, 3696cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor CCLoc, 3706cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor EnteringContext)) { 3716cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation StartLoc 3726cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor = SS.getBeginLoc().isValid()? SS.getBeginLoc() 3736cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor : TemplateId->TemplateNameLoc; 3746cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SS.SetInvalid(SourceRange(StartLoc, CCLoc)); 37567b9e831943300ce54e564e601971828ce4def15Chris Lattner } 376eccce7e246a17e12a2afd6eabb9ac7c8d582db4eArgyrios Kyrtzidis 3776cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor continue; 37839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 37939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 3805c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 3815c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // The rest of the nested-name-specifier possibilities start with 3825c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // tok::identifier. 3835c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Tok.isNot(tok::identifier)) 3845c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner break; 3855c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 3865c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner IdentifierInfo &II = *Tok.getIdentifierInfo(); 3875c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 3885c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 3895c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '::' 3905c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // namespace-name '::' 3915c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier identifier '::' 3925c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Token Next = NextToken(); 39346646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 39446646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // If we get foo:bar, this is almost certainly a typo for foo::bar. Recover 39546646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // and emit a fixit hint for it. 396b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor if (Next.is(tok::colon) && !ColonIsSacred) { 3972e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.IsInvalidUnlessNestedName(getCurScope(), SS, II, 3982e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Tok.getLocation(), 3992e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Next.getLocation(), ObjectType, 400b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor EnteringContext) && 401b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // If the token after the colon isn't an identifier, it's still an 402b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // error, but they probably meant something else strange so don't 403b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // recover like this. 404b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor PP.LookAhead(1).is(tok::identifier)) { 405b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Diag(Next, diag::err_unexected_colon_in_nested_name_spec) 406849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateReplacement(Next.getLocation(), "::"); 407b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor 408b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // Recover as if the user wrote '::'. 409b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Next.setKind(tok::coloncolon); 410b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor } 41146646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner } 41246646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 4135c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::coloncolon)) { 41477549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde) && 41523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor !Actions.isNonTypeNestedNameSpecifier(getCurScope(), SS, Tok.getLocation(), 41677549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor II, ObjectType)) { 417d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 4189ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 419d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 420d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 4212db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith if (LastII) 4222db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith *LastII = &II; 4232db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith 4245c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have an identifier followed by a '::'. Lookup this name 4255c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // as the name in a nested-name-specifier. 4265c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation IdLoc = ConsumeToken(); 42746646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner assert((Tok.is(tok::coloncolon) || Tok.is(tok::colon)) && 42846646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner "NextToken() not working properly!"); 4295c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation CCLoc = ConsumeToken(); 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 431919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu CheckForLParenAfterColonColon(); 432919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 4332e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor HasScopeSpecifier = true; 4342e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), II, IdLoc, CCLoc, 4352e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor ObjectType, EnteringContext, SS)) 4362e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor SS.SetInvalid(SourceRange(IdLoc, CCLoc)); 4372e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 4385c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 4395c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 4401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 441950be71c745409e373ae8a834490f9026c8ac222Richard Trieu CheckForTemplateAndDigraph(Next, ObjectType, EnteringContext, II, SS); 442ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 4435c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 4445c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '<' 4455c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::less)) { 4465c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner TemplateTy Template; 447014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 448014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(&II, Tok.getLocation()); 4491fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 45023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (TemplateNameKind TNK = Actions.isTemplateName(getCurScope(), SS, 4517c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, 452014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName, 4532dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType, 454495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor EnteringContext, 4551fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Template, 4561fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization)) { 4576796fc1adcaf57c38d072a238b016b2834afbe0dDavid Blaikie // We have found a template name, so annotate this token 4585c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // with a template-id annotation. We do not permit the 4595c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // template-id to be translated into a type annotation, 4605c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // because some clients (e.g., the parsing of class template 4615c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // specializations) still want to see the original template-id 4625c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // token. 463ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 464e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 465e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 4669ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 4675c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 468d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor } 469d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 470d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor if (MemberOfUnknownSpecialization && (ObjectType || SS.isSet()) && 4714147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet (IsTypename || IsTemplateArgumentList(1))) { 472d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // We have something like t::getAs<T>, where getAs is a 473d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // member of an unknown specialization. However, this will only 474d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 475d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // before 'getAs' and treat this as a dependent template name. 4764147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet unsigned DiagID = diag::err_missing_dependent_template_keyword; 4774e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().MicrosoftExt) 478cf320c6388c90f1938c264e87d77a0e43946e2c3Francois Pichet DiagID = diag::warn_missing_dependent_template_keyword; 4794147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 4804147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet Diag(Tok.getLocation(), DiagID) 481d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << II.getName() 482d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << FixItHint::CreateInsertion(Tok.getLocation(), "template "); 483d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 484d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TemplateNameKind TNK 48523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor = Actions.ActOnDependentTemplateName(getCurScope(), 486e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, SourceLocation(), 487d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, ObjectType, 488d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template)) { 489d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor // Consume the identifier. 490d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor ConsumeToken(); 491e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 492e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 493e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return true; 494d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } 495d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor else 496d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor return true; 497d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor 498d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor continue; 4995c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 5005c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 5015c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 50239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 50339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 50439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 50539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 5061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 507d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Even if we didn't see any pieces of a nested-name-specifier, we 508d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // still check whether there is a tilde in this position, which 509d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // indicates a potential pseudo-destructor. 510d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && Tok.is(tok::tilde)) 511d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 512d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 5139ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 514eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 515eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 516eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 517eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 518eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 519eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 520eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 521eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 522eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 523eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 524eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 525eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 526edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor/// '::' template-id 527eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 528eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 529eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 530eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 531eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 532eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 533eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 534eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 535eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 536eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 537eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 538eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 539eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 540eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 541eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 542eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 543eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 544eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 545eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 546eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 547eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 548eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 549eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 550eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 551eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 552eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 553ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 554ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 555ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 556ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 557ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 55860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 559eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 560eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 561eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 562eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 563eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 564efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(SS, ParsedType(), /*EnteringContext=*/false); 565e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 566e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 56702a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor UnqualifiedId Name; 568e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(SS, 569e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*EnteringContext=*/false, 570e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AllowDestructorName=*/false, 571e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AllowConstructorName=*/false, 572b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 573e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, 57402a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor Name)) 57502a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor return ExprError(); 576b681b61fea36618778b8030360e90e3f4641233bJohn McCall 577b681b61fea36618778b8030360e90e3f4641233bJohn McCall // This is only the direct operand of an & operator if it is not 578b681b61fea36618778b8030360e90e3f4641233bJohn McCall // followed by a postfix-expression suffix. 5799c72c6088d591ace8503b842d39448c2040f3033John McCall if (isAddressOfOperand && isPostfixExpressionSuffixStart()) 5809c72c6088d591ace8503b842d39448c2040f3033John McCall isAddressOfOperand = false; 581e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 582e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return Actions.ActOnIdExpression(getCurScope(), SS, TemplateKWLoc, Name, 583e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Tok.is(tok::l_paren), isAddressOfOperand); 584eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 585eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 586ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpression - Parse a C++0x lambda expression. 587ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 588ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-expression: 589ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer lambda-declarator[opt] compound-statement 590ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 591ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer: 592ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '[' lambda-capture[opt] ']' 593ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 594ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-capture: 595ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default 596ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list 597ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default ',' capture-list 598ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 599ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default: 600ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' 601ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '=' 602ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 603ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list: 604ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture 605ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list ',' capture 606ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 607ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture: 608ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// identifier 609ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' identifier 610ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'this' 611ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 612ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-declarator: 613ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '(' parameter-declaration-clause ')' attribute-specifier[opt] 614ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'mutable'[opt] exception-specification[opt] 615ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// trailing-return-type[opt] 616ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 617ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpression() { 618ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-introducer. 619ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 620ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 621dc84cd5efdd3430efb22546b4ac656aa0540b210David Blaikie Optional<unsigned> DiagID(ParseLambdaIntroducer(Intro)); 622ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 623ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, DiagID.getValue()); 624ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SkipUntil(tok::r_square); 625dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman SkipUntil(tok::l_brace); 626dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman SkipUntil(tok::r_brace); 627dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprError(); 628ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 629ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 630ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 631ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 632ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 633ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// TryParseLambdaExpression - Use lookahead and potentially tentative 634ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// parsing to determine if we are looking at a C++0x lambda expression, and parse 635ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// it if we are. 636ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 637ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// If we are not looking at a lambda expression, returns ExprError(). 638ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::TryParseLambdaExpression() { 63980ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith assert(getLangOpts().CPlusPlus11 640ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && Tok.is(tok::l_square) 641ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && "Not at the start of a possible lambda expression."); 642ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 643ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor const Token Next = NextToken(), After = GetLookAheadToken(2); 644ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 645ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // If lookahead indicates this is a lambda... 646ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::r_square) || // [] 647ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Next.is(tok::equal) || // [= 648ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::amp) && // [&] or [&, 649ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (After.is(tok::r_square) || 650ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::comma))) || 651ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::identifier) && // [identifier] 652ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::r_square))) { 653ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpression(); 654ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 655ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 656dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // If lookahead indicates an ObjC message send... 657dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // [identifier identifier 658ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::identifier) && After.is(tok::identifier)) { 659dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprEmpty(); 660ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 661ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 662dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // Here, we're stuck: lambda introducers and Objective-C message sends are 663dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // unambiguous, but it requires arbitrary lookhead. [a,b,c,d,e,f,g] is a 664dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // lambda, and [a,b,c,d,e,f,g h] is a Objective-C message send. Instead of 665dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // writing two routines to parse a lambda introducer, just try to parse 666dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // a lambda introducer first, and fall back if that fails. 667dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // (TryParseLambdaIntroducer never produces any diagnostic output.) 668ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 669ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (TryParseLambdaIntroducer(Intro)) 670dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprEmpty(); 671ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 672ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 673ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 674ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpression - Parse a lambda introducer. 675ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 676ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// Returns a DiagnosticID if it hit something unexpected. 677dc84cd5efdd3430efb22546b4ac656aa0540b210David BlaikieOptional<unsigned> Parser::ParseLambdaIntroducer(LambdaIntroducer &Intro) { 678dc84cd5efdd3430efb22546b4ac656aa0540b210David Blaikie typedef Optional<unsigned> DiagResult; 679ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 680ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor assert(Tok.is(tok::l_square) && "Lambda expressions begin with '['."); 6814a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 6824a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 6834a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 6844a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Intro.Range.setBegin(T.getOpenLocation()); 685ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 686ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor bool first = true; 687ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 688ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture-default. 689ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp) && 690ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (NextToken().is(tok::comma) || NextToken().is(tok::r_square))) { 691ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByRef; 6923ac109cd17151bb8ad3a40b0cbb0e1923cd6c4a0Douglas Gregor Intro.DefaultLoc = ConsumeToken(); 693ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 694ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::equal)) { 695ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByCopy; 6963ac109cd17151bb8ad3a40b0cbb0e1923cd6c4a0Douglas Gregor Intro.DefaultLoc = ConsumeToken(); 697ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 698ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 699ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 700ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor while (Tok.isNot(tok::r_square)) { 701ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (!first) { 70281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.isNot(tok::comma)) { 703437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // Provide a completion for a lambda introducer here. Except 704437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // in Objective-C, where this is Almost Surely meant to be a message 705437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // send. In that case, fail here and let the ObjC message 706437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // expression parser perform the completion. 707d48ab06b178e400ac31ef4fe649e9c33d2caf651Douglas Gregor if (Tok.is(tok::code_completion) && 708d48ab06b178e400ac31ef4fe649e9c33d2caf651Douglas Gregor !(getLangOpts().ObjC1 && Intro.Default == LCD_None && 709d48ab06b178e400ac31ef4fe649e9c33d2caf651Douglas Gregor !Intro.Captures.empty())) { 71081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 71181f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/false); 71281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor ConsumeCodeCompletionToken(); 71381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 71481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 71581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 716ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_comma_or_rsquare); 71781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 718ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 719ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 720ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 72181f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.is(tok::code_completion)) { 72281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor // If we're in Objective-C++ and we have a bare '[', then this is more 72381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor // likely to be a message receiver. 7244e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1 && first) 72581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteObjCMessageReceiver(getCurScope()); 72681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor else 72781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 72881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/false); 72981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor ConsumeCodeCompletionToken(); 73081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 73181f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 732ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 73381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor first = false; 73481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 735ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture. 736ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaCaptureKind Kind = LCK_ByCopy; 737ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation Loc; 738ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor IdentifierInfo* Id = 0; 739a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor SourceLocation EllipsisLoc; 740a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor 741ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::kw_this)) { 742ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_This; 743ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 744ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 745ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp)) { 746ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_ByRef; 747ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 74881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 74981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.is(tok::code_completion)) { 75081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 75181f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/true); 75281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor ConsumeCodeCompletionToken(); 75381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 75481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 755ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 756ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 757ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::identifier)) { 758ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Id = Tok.getIdentifierInfo(); 759ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 760a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor 761a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor if (Tok.is(tok::ellipsis)) 762a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor EllipsisLoc = ConsumeToken(); 763ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::kw_this)) { 764ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // FIXME: If we want to suggest a fixit here, will need to return more 765ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // than just DiagnosticID. Perhaps full DiagnosticBuilder that can be 766ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Clear()ed to prevent emission in case of tentative parsing? 767ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_this_captured_by_reference); 768ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 769ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_capture); 770ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 771ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 772ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 773a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor Intro.addCapture(Kind, Loc, Id, EllipsisLoc); 774ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 775ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 7764a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 7774a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Intro.Range.setEnd(T.getCloseLocation()); 778ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 779ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(); 780ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 781ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 78281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor/// TryParseLambdaIntroducer - Tentatively parse a lambda introducer. 783ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 784ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// Returns true if it hit something unexpected. 785ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregorbool Parser::TryParseLambdaIntroducer(LambdaIntroducer &Intro) { 786ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TentativeParsingAction PA(*this); 787ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 788dc84cd5efdd3430efb22546b4ac656aa0540b210David Blaikie Optional<unsigned> DiagID(ParseLambdaIntroducer(Intro)); 789ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 790ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 791ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Revert(); 792ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return true; 793ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 794ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 795ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Commit(); 796ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return false; 797ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 798ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 799ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpressionAfterIntroducer - Parse the rest of a lambda 800ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// expression. 801ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpressionAfterIntroducer( 802ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer &Intro) { 803dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman SourceLocation LambdaBeginLoc = Intro.Range.getBegin(); 804dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman Diag(LambdaBeginLoc, diag::warn_cxx98_compat_lambda); 805dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 806dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman PrettyStackTraceLoc CrashInfo(PP.getSourceManager(), LambdaBeginLoc, 807dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman "lambda expression parsing"); 808dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 809ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-declarator[opt]. 810ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclSpec DS(AttrFactory); 811f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman Declarator D(DS, Declarator::LambdaExprContext); 812ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 813ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::l_paren)) { 814ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseScope PrototypeScope(this, 815ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::FunctionPrototypeScope | 8163a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith Scope::FunctionDeclarationScope | 817ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::DeclScope); 818ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 81959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation DeclEndLoc; 8204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 8214a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 82259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation LParenLoc = T.getOpenLocation(); 823ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 824ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse parameter-declaration-clause. 825ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParsedAttributes Attr(AttrFactory); 826cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<DeclaratorChunk::ParamInfo, 16> ParamInfo; 827ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation EllipsisLoc; 828ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 829ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.isNot(tok::r_paren)) 830ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseParameterDeclarationClause(D, Attr, ParamInfo, EllipsisLoc); 831ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 8324a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 83359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation RParenLoc = T.getCloseLocation(); 83459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara DeclEndLoc = RParenLoc; 835ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 836ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse 'mutable'[opt]. 837ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation MutableLoc; 838ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::kw_mutable)) { 839ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MutableLoc = ConsumeToken(); 840ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = MutableLoc; 841ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 842ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 843ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse exception-specification[opt]. 844ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExceptionSpecificationType ESpecType = EST_None; 845ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange ESpecRange; 846cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<ParsedType, 2> DynamicExceptions; 847cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<SourceRange, 2> DynamicExceptionRanges; 848ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExprResult NoexceptExpr; 849a058fd4f0a944174295f77169b438510dad389f8Richard Smith ESpecType = tryParseExceptionSpecification(ESpecRange, 85074e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions, 85174e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges, 852a058fd4f0a944174295f77169b438510dad389f8Richard Smith NoexceptExpr); 853ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 854ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (ESpecType != EST_None) 855ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = ESpecRange.getEnd(); 856ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 857ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse attribute-specifier[opt]. 8584e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(Attr, &DeclEndLoc); 859ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 86059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation FunLocalRangeEnd = DeclEndLoc; 86159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara 862ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse trailing-return-type[opt]. 86354655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TypeResult TrailingReturnType; 864ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::arrow)) { 86559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara FunLocalRangeEnd = Tok.getLocation(); 866ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange Range; 86754655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TrailingReturnType = ParseTrailingReturnType(Range); 868ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Range.getEnd().isValid()) 869ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = Range.getEnd(); 870ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 871ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 872ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PrototypeScope.Exit(); 873ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 87459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation NoLoc; 875ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor D.AddTypeInfo(DeclaratorChunk::getFunction(/*hasProto=*/true, 87659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*isAmbiguous=*/false, 87759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara LParenLoc, 878ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParamInfo.data(), ParamInfo.size(), 87959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara EllipsisLoc, RParenLoc, 880ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DS.getTypeQualifiers(), 881ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor /*RefQualifierIsLValueRef=*/true, 88259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierLoc=*/NoLoc, 88359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ConstQualifierLoc=*/NoLoc, 88459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*VolatileQualifierLoc=*/NoLoc, 885ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MutableLoc, 886ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ESpecType, ESpecRange.getBegin(), 887ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.data(), 888ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptionRanges.data(), 889ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.size(), 890ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr.isUsable() ? 891ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr.get() : 0, 89259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara LParenLoc, FunLocalRangeEnd, D, 893ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TrailingReturnType), 894ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Attr, DeclEndLoc); 895c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor } else if (Tok.is(tok::kw_mutable) || Tok.is(tok::arrow)) { 896c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // It's common to forget that one needs '()' before 'mutable' or the 897c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // result type. Deal with this. 898c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor Diag(Tok, diag::err_lambda_missing_parens) 899c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor << Tok.is(tok::arrow) 900c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor << FixItHint::CreateInsertion(Tok.getLocation(), "() "); 901c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceLocation DeclLoc = Tok.getLocation(); 902c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceLocation DeclEndLoc = DeclLoc; 903c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 904c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // Parse 'mutable', if it's there. 905c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceLocation MutableLoc; 906c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor if (Tok.is(tok::kw_mutable)) { 907c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor MutableLoc = ConsumeToken(); 908c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor DeclEndLoc = MutableLoc; 909c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor } 910c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 911c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // Parse the return type, if there is one. 91254655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TypeResult TrailingReturnType; 913c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor if (Tok.is(tok::arrow)) { 914c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceRange Range; 91554655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TrailingReturnType = ParseTrailingReturnType(Range); 916c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor if (Range.getEnd().isValid()) 917c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor DeclEndLoc = Range.getEnd(); 918c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor } 919c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 920c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor ParsedAttributes Attr(AttrFactory); 92159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation NoLoc; 922c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor D.AddTypeInfo(DeclaratorChunk::getFunction(/*hasProto=*/true, 92359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*isAmbiguous=*/false, 92459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*LParenLoc=*/NoLoc, 92559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*Params=*/0, 92659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumParams=*/0, 92759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*EllipsisLoc=*/NoLoc, 92859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RParenLoc=*/NoLoc, 92959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*TypeQuals=*/0, 93059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierIsLValueRef=*/true, 93159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierLoc=*/NoLoc, 93259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ConstQualifierLoc=*/NoLoc, 93359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*VolatileQualifierLoc=*/NoLoc, 93459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara MutableLoc, 93559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara EST_None, 93659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ESpecLoc=*/NoLoc, 93759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*Exceptions=*/0, 93859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ExceptionRanges=*/0, 93959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumExceptions=*/0, 94059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NoexceptExpr=*/0, 94159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara DeclLoc, DeclEndLoc, D, 94259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara TrailingReturnType), 943c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor Attr, DeclEndLoc); 944ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 945c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 946ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 947906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman // FIXME: Rename BlockScope -> ClosureScope if we decide to continue using 948906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman // it. 949fccfb625e3090e77da9b6a79edcab159c7006685Douglas Gregor unsigned ScopeFlags = Scope::BlockScope | Scope::FnScope | Scope::DeclScope; 950fccfb625e3090e77da9b6a79edcab159c7006685Douglas Gregor ParseScope BodyScope(this, ScopeFlags); 951906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman 952ec9ea7200718478e8a976529defbe21942a11c9cEli Friedman Actions.ActOnStartOfLambdaDefinition(Intro, D, getCurScope()); 953ec9ea7200718478e8a976529defbe21942a11c9cEli Friedman 954ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse compound-statement. 955dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman if (!Tok.is(tok::l_brace)) { 956ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, diag::err_expected_lambda_body); 957dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman Actions.ActOnLambdaError(LambdaBeginLoc, getCurScope()); 958dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprError(); 959ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 960ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 961dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman StmtResult Stmt(ParseCompoundStatementBody()); 962dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman BodyScope.Exit(); 963dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 964deeab90783eb28d955add1062b616c030eb2b781Eli Friedman if (!Stmt.isInvalid()) 9659e8c92a9c9b949bbb0408fbbd9a58e34894b6efcDouglas Gregor return Actions.ActOnLambdaExpr(LambdaBeginLoc, Stmt.take(), getCurScope()); 966dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 967deeab90783eb28d955add1062b616c030eb2b781Eli Friedman Actions.ActOnLambdaError(LambdaBeginLoc, getCurScope()); 968deeab90783eb28d955add1062b616c030eb2b781Eli Friedman return ExprError(); 969ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 970ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 98060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXCasts() { 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 985eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie default: llvm_unreachable("Unknown C++ cast!"); 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 9885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 9935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 9945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 995ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Check for "<::" which is parsed as "[:". If found, fix token stream, 996ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // diagnose error, suggest fix, and recover parsing. 99778fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith if (Tok.is(tok::l_square) && Tok.getLength() == 2) { 99878fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith Token Next = NextToken(); 99978fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith if (Next.is(tok::colon) && areTokensAdjacent(Tok, Next)) 100078fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith FixDigraph(*this, PP, Tok, Next, Kind, /*AtDigraph*/true); 100178fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith } 1002ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 100420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 100631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the common declaration-specifiers piece. 100731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 100831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 100931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 101031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the abstract-declarator, if present. 101131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 101231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 101331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10161ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 101720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SourceLocation LParenLoc, RParenLoc; 10204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10224a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, CastName)) 102321e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 102560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result = ParseExpression(); 10261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102721e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 10284a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 103031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (!Result.isInvalid() && !DeclaratorInfo.isInvalidType()) 103149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 103231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis LAngleBracketLoc, DeclaratorInfo, 1033809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 10344a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getOpenLocation(), Result.take(), 10354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10373fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1040c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 1041c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 1042c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 1043c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 1044c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 1045c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 104660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXTypeid() { 1047c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 1048c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1049c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 10504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SourceLocation LParenLoc, RParenLoc; 10514a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 1052c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1053c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 10544a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, "typeid")) 105520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 10564a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LParenLoc = T.getOpenLocation(); 1057c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 105860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result; 1059c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 10600576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // C++0x [expr.typeid]p3: 10610576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // When typeid is applied to an expression other than an lvalue of a 10620576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // polymorphic class type [...] The expression is an unevaluated 10630576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // operand (Clause 5). 10640576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // 10650576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Note that we can't tell whether the expression is an lvalue of a 10660576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // polymorphic class type until after we've parsed the expression; we 10670576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // speculatively assume the subexpression is unevaluated, and fix it up 10680576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // later. 10690576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // 10700576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We enter the unevaluated context before trying to determine whether we 10710576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // have a type-id, because the tentative parse logic will try to resolve 10720576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // names, and must treat them as unevaluated. 107380bfa3d125fa0b9c636977ea37b4a55b2c9b1037Eli Friedman EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated, 107480bfa3d125fa0b9c636977ea37b4a55b2c9b1037Eli Friedman Sema::ReuseLambdaContextDecl); 10750576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 1076c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 1077809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 1078c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1079c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 10804a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 10814a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor RParenLoc = T.getCloseLocation(); 10824eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (Ty.isInvalid() || RParenLoc.isInvalid()) 108320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 1084c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1085c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 1086b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Ty.get().getAsOpaquePtr(), RParenLoc); 1087c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 1088c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 1089c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1090c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 10910e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 1092c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SkipUntil(tok::r_paren); 1093c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 10944a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 10954a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor RParenLoc = T.getCloseLocation(); 10964eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (RParenLoc.isInvalid()) 10974eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor return ExprError(); 1098fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor 1099c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 1100effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 1101c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 1102c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 1103c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 11043fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 1105c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 1106c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 110701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// ParseCXXUuidof - This handles the Microsoft C++ __uuidof expression. 110801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 110901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' expression ')' 111001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' type-id ')' 111101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 111201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois PichetExprResult Parser::ParseCXXUuidof() { 111301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet assert(Tok.is(tok::kw___uuidof) && "Not '__uuidof'!"); 111401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 111501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation OpLoc = ConsumeToken(); 11164a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 111701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 111801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // __uuidof expressions are always parenthesized. 11194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, "__uuidof")) 112001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 112101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 112201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet ExprResult Result; 112301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 112401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (isTypeIdInParens()) { 112501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet TypeResult Ty = ParseTypeName(); 112601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 112701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 11284a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 112901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 113001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Ty.isInvalid()) 113101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 113201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 11334a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCXXUuidof(OpLoc, T.getOpenLocation(), /*isType=*/true, 11344a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Ty.get().getAsOpaquePtr(), 11354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 113601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } else { 113701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); 113801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = ParseExpression(); 113901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 114001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 114101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Result.isInvalid()) 114201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SkipUntil(tok::r_paren); 114301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet else { 11444a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 114501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 11464a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCXXUuidof(OpLoc, T.getOpenLocation(), 11474a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor /*isType=*/false, 11484a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result.release(), T.getCloseLocation()); 114901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 115001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 115101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 11523fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 115301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet} 115401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 1155d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \brief Parse a C++ pseudo-destructor expression after the base, 1156d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// . or -> operator, and nested-name-specifier have already been 1157d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// parsed. 1158d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 1159d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression: [C++ 5.2] 1160d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression . pseudo-destructor-name 1161d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression -> pseudo-destructor-name 1162d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 1163d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor-name: 1164d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] type-name :: ~type-name 1165d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier template simple-template-id :: 1166d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ~type-name 1167d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] ~type-name 1168d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 116960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 1170d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas GregorParser::ParseCXXPseudoDestructor(ExprArg Base, SourceLocation OpLoc, 1171d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor tok::TokenKind OpKind, 1172d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CXXScopeSpec &SS, 1173b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType) { 1174d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // We're parsing either a pseudo-destructor-name or a dependent 1175d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // member access that has the same form as a 1176d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // pseudo-destructor-name. We parse both in the same way and let 1177d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // the action model sort them out. 1178d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // 1179d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Note that the ::[opt] nested-name-specifier[opt] has already 1180d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been parsed, and if there was a simple-template-id, it has 1181d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been coalesced into a template-id annotation token. 1182d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId FirstTypeName; 1183d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation CCLoc; 1184d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::identifier)) { 1185d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 1186d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 1187d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 1188d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 1189d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else if (Tok.is(tok::annot_template_id)) { 1190e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // FIXME: retrieve TemplateKWLoc from template-id annotation and 1191e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // store it in the pseudo-dtor node (to be used when instantiating it). 1192d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setTemplateId( 1193d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor (TemplateIdAnnotation *)Tok.getAnnotationValue()); 1194d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 1195d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 1196d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 1197d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else { 1198d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(0, SourceLocation()); 1199d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 1200d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1201d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the tilde. 1202d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::tilde) && "ParseOptionalCXXScopeSpecifier fail"); 1203d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 120491ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie 120591ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie if (Tok.is(tok::kw_decltype) && !FirstTypeName.isValid() && SS.isEmpty()) { 120691ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie DeclSpec DS(AttrFactory); 120785c60db2131c6d210d4777c3d50bdaf0e69bb8bfBenjamin Kramer ParseDecltypeSpecifier(DS); 120891ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie if (DS.getTypeSpecType() == TST_error) 120991ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie return ExprError(); 121091ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, OpLoc, 121191ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie OpKind, TildeLoc, DS, 121291ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie Tok.is(tok::l_paren)); 121391ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie } 121491ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie 1215d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (!Tok.is(tok::identifier)) { 1216d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 1217d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1218d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 1219d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1220d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the second type. 1221d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId SecondTypeName; 1222d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor IdentifierInfo *Name = Tok.getIdentifierInfo(); 1223d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation NameLoc = ConsumeToken(); 1224d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SecondTypeName.setIdentifier(Name, NameLoc); 1225d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1226d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // If there is a '<', the second type name is a template-id. Parse 1227d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // it as such. 1228d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::less) && 1229e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ParseUnqualifiedIdTemplateId(SS, SourceLocation(), 1230e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Name, NameLoc, 1231e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara false, ObjectType, SecondTypeName, 1232e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AssumeTemplateName=*/true)) 1233d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1234d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 12359ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, 12369ae2f076ca5ab1feb3ba95629099ec2319833701John McCall OpLoc, OpKind, 1237d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SS, FirstTypeName, CCLoc, 1238d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor TildeLoc, SecondTypeName, 1239d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Tok.is(tok::l_paren)); 1240d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor} 1241d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 124760d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXBoolLiteral() { 12485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 1249f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 125150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 125250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 125350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 125450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 125550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 125660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseThrowExpression() { 125750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 125850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 125920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 12602a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 12612a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 12622a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 12632a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 12642a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 12652a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 12662a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 12672a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 12682a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 12692a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 1270bca01b46850f867b2f4137f25c882022b58f8471Douglas Gregor return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, 0); 127150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 12722a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 127360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Expr(ParseAssignmentExpression()); 12743fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer if (Expr.isInvalid()) return Expr; 1275bca01b46850f867b2f4137f25c882022b58f8471Douglas Gregor return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, Expr.take()); 12762a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 127750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 12784cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 12794cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 12804cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 12814cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 12824cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 12834cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 128460d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXThis() { 12854cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 12864cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 1287f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 12884cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 1289987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1290987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 1291987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 1292987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 1293987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 1294dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// See [C++ 5.2.3]. 1295987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1296987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 1297dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// simple-type-specifier '(' expression-list[opt] ')' 1298dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] simple-type-specifier braced-init-list 1299dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// typename-specifier '(' expression-list[opt] ')' 1300dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] typename-specifier braced-init-list 1301987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 130260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 130320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 1304987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 1305b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = Actions.ActOnTypeName(getCurScope(), DeclaratorInfo).get(); 1306987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1307dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Tok.is(tok::l_paren) || 130880ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace))) 1309dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl && "Expected '(' or '{'!"); 1310bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor 1311dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.is(tok::l_brace)) { 13126dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl ExprResult Init = ParseBraceInitializer(); 13136dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl if (Init.isInvalid()) 13146dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl return Init; 13156dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl Expr *InitList = Init.take(); 13166dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl return Actions.ActOnCXXTypeConstructExpr(TypeRep, SourceLocation(), 13176dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl MultiExprArg(&InitList, 1), 13186dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl SourceLocation()); 1319dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } else { 13204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 13214a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 1322dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 13234e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer ExprVector Exprs; 1324dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl CommaLocsTy CommaLocs; 1325dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 1326dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.isNot(tok::r_paren)) { 1327dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (ParseExpressionList(Exprs, CommaLocs)) { 1328dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl SkipUntil(tok::r_paren); 1329dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1330dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1331987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1332987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1333dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // Match the ')'. 13344a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1335987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1336dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // TypeRep could be null, if it references an invalid typedef. 1337dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (!TypeRep) 1338dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1339ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl 1340dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 1341dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl "Unexpected number of commas!"); 13424a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnCXXTypeConstructExpr(TypeRep, T.getOpenLocation(), 13433fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer Exprs, 13444a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 1345dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1346987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 1347987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 134899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// ParseCXXCondition - if/switch/while condition expression. 134971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 135071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 135171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 135271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 13530635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith/// [C++11] type-specifier-seq declarator '=' initializer-clause 13540635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith/// [C++11] type-specifier-seq declarator braced-init-list 135571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 135671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 135771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 13581ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param ExprOut if the condition was parsed as an expression, the parsed 13591ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// expression. 136099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 13611ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param DeclOut if the condition was parsed as a declaration, the parsed 13621ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// declaration. 136399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 1364586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param Loc The location of the start of the statement that requires this 1365586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// condition, e.g., the "for" in a for loop. 1366586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 1367586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param ConvertToBoolean Whether the condition expression should be 1368586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// converted to a boolean value. 1369586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 137099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \returns true if there was a parsing, false otherwise. 137160d7b3a319d84d688752be3870615ac0f111fb16John McCallbool Parser::ParseCXXCondition(ExprResult &ExprOut, 137260d7b3a319d84d688752be3870615ac0f111fb16John McCall Decl *&DeclOut, 1373586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor SourceLocation Loc, 1374586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor bool ConvertToBoolean) { 137501dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor if (Tok.is(tok::code_completion)) { 1376f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Condition); 13777d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 13787d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return true; 137901dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor } 138001dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor 13812edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsedAttributesWithRange attrs(AttrFactory); 13824e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 13832edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 138499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor if (!isCXXConditionDeclaration()) { 13852edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 13862edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 1387586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // Parse the expression. 138860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ParseExpression(); // expression 138960d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = 0; 139060d7b3a319d84d688752be3870615ac0f111fb16John McCall if (ExprOut.isInvalid()) 1391586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor return true; 1392586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 1393586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // If required, convert to a boolean value. 1394586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor if (ConvertToBoolean) 139560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut 139660d7b3a319d84d688752be3870615ac0f111fb16John McCall = Actions.ActOnBooleanCondition(getCurScope(), Loc, ExprOut.get()); 139760d7b3a319d84d688752be3870615ac0f111fb16John McCall return ExprOut.isInvalid(); 139899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 139971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 140071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 14010b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 14026b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith DS.takeAttributesFrom(attrs); 140371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 140471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 140571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 140671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 140771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 140871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 140971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 141071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 1411ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 141260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult AsmLabel(ParseSimpleAsm(&Loc)); 14130e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 141471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 141599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return true; 141671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 1417effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 1418ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 141971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 142071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 142171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 14227f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(DeclaratorInfo); 142371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 142499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // Type-check the declaration itself. 142560d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclResult Dcl = Actions.ActOnCXXConditionDeclaration(getCurScope(), 14267f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DeclaratorInfo); 142760d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = Dcl.get(); 142860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ExprError(); 1429a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 143071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 1431d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu // If a '==' or '+=' is found, suggest a fixit to '='. 14320635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith bool CopyInitialization = isTokenEqualOrEqualTypo(); 14330635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith if (CopyInitialization) 1434dec0984fce504a39a7f085774fb67cfd9957be58Jeffrey Yasskin ConsumeToken(); 14350635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith 14360635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith ExprResult InitExpr = ExprError(); 143780ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace)) { 14380635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Diag(Tok.getLocation(), 14390635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith diag::warn_cxx98_compat_generalized_initializer_lists); 14400635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith InitExpr = ParseBraceInitializer(); 14410635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith } else if (CopyInitialization) { 14420635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith InitExpr = ParseAssignmentExpression(); 14430635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith } else if (Tok.is(tok::l_paren)) { 14440635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith // This was probably an attempt to initialize the variable. 14450635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith SourceLocation LParen = ConsumeParen(), RParen = LParen; 14460635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith if (SkipUntil(tok::r_paren, true, /*DontConsume=*/true)) 14470635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith RParen = ConsumeParen(); 14480635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Diag(DeclOut ? DeclOut->getLocation() : LParen, 14490635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith diag::err_expected_init_in_condition_lparen) 14500635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith << SourceRange(LParen, RParen); 145199e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } else { 14520635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Diag(DeclOut ? DeclOut->getLocation() : Tok.getLocation(), 14530635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith diag::err_expected_init_in_condition); 145499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 14550635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith 14560635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith if (!InitExpr.isInvalid()) 14570635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Actions.AddInitializerToDecl(DeclOut, InitExpr.take(), !CopyInitialization, 14580635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith DS.getTypeSpecType() == DeclSpec::TST_auto); 14590635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith 1460586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // FIXME: Build a reference to this declaration? Convert it to bool? 1461586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // (This is currently handled by Sema). 1462483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith 1463483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith Actions.FinalizeDeclaration(DeclOut); 1464586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 146599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return false; 146671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 146771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 1468987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 1469987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 1470987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 1471987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1472987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 1473eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 1474987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 1475987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 1476987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 1477987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 1478987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 1479987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 1480987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 1481987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 1482987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 1483987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 1484987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 1485987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 1486987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 1487987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 1488987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1489987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 1490987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 1491987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 1492987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 1493987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1494987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 1495987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 1496987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 1497fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 1498987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 14991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1500987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 150155a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 150255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 1503b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Annotation token should already be formed!"); 15041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: 1505b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Not a simple-type-specifier token!"); 150655a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 1507987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 1508b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 15096952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (getTypeAnnotation(Tok)) 15106952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, DiagID, 15116952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor getTypeAnnotation(Tok)); 15126952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor else 15136952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecError(); 15149bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 15159bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 15169bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ConsumeToken(); 15179bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 15189bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C supports syntax of the form 'id<proto1,proto2>' where 'id' 15199bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // is a specific typedef and 'itf<proto1,proto2>' where 'itf' is an 15209bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C interface. If we don't have Objective-C or a '<', this is 15219bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // just a normal reference to a typedef name. 15224e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Tok.is(tok::less) && getLangOpts().ObjC1) 15239bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ParseObjCProtocolQualifiers(DS); 15249bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 15259bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.Finish(Diags, PP); 15269bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor return; 1527987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 15281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1529987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 1530987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 1531fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec, DiagID); 1532987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1533987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 1534fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec, DiagID); 1535338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet break; 1536338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet case tok::kw___int64: 1537338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet DS.SetTypeSpecWidth(DeclSpec::TSW_longlong, Loc, PrevSpec, DiagID); 1538987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1539987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 1540fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec, DiagID); 1541987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1542987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 1543fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec, DiagID); 1544987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1545987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 1546fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec, DiagID); 1547987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1548987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 1549fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec, DiagID); 1550987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1551987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 1552fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec, DiagID); 1553987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 15545a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith case tok::kw___int128: 15555a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith DS.SetTypeSpecType(DeclSpec::TST_int128, Loc, PrevSpec, DiagID); 15565a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith break; 1557aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case tok::kw_half: 1558aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov DS.SetTypeSpecType(DeclSpec::TST_half, Loc, PrevSpec, DiagID); 1559aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov break; 1560987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 1561fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec, DiagID); 1562987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1563987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 1564fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec, DiagID); 1565987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1566987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 1567fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec, DiagID); 1568987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1569f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char16_t: 1570fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char16, Loc, PrevSpec, DiagID); 1571f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1572f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char32_t: 1573fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char32, Loc, PrevSpec, DiagID); 1574f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1575987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 1576fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec, DiagID); 1577987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 15785e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie case tok::annot_decltype: 15795e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie case tok::kw_decltype: 15805e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie DS.SetRangeEnd(ParseDecltypeSpecifier(DS)); 15815e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie return DS.Finish(Diags, PP); 15821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1583987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 1584987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 1585987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 15869b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 1587987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 1588987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1589b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 1590eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 1591eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 1592eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 1593987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 15949b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 1595987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 15961cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 15972f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 15982f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 15992f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 16002f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 16012f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 16022f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 16032f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 16042f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 16052f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 16062f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 16072f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 16082f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 160969730c115c2d0fec2f20609d905d920a5a41b29bRichard Smith ParseSpecifierQualifierList(DS, AS_none, DSC_type_specifier); 1610396a9f235e160093b5f803f7a6a18fad7b68bdbeDouglas Gregor DS.Finish(Diags, PP); 16112f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 16122f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 16132f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 16143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \brief Finish parsing a C++ unqualified-id that is a template-id of 16153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// some form. 16163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// This routine is invoked when a '<' is encountered after an identifier or 16183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id is parsed by \c ParseUnqualifiedId() to determine 16193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// whether the unqualified-id is actually a template-id. This routine will 16203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// then parse the template arguments and form the appropriate template-id to 16213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// return to the caller. 16223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param SS the nested-name-specifier that precedes this template-id, if 16243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// we're actually parsing a qualified-id. 16253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Name for constructor and destructor names, this is the actual 16273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// identifier that may be a template-name. 16283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param NameLoc the location of the class-name in a constructor or 16303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// destructor. 16313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 16323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we're entering the scope of the 16333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 16343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 163546df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 163646df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 163746df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 16383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Id as input, describes the template-name or operator-function-id 16393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// that precedes the '<'. If template arguments were parsed successfully, 16403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// will be updated with the template-id. 16413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1642d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param AssumeTemplateId When true, this routine will assume that the name 1643d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// refers to a template without performing name lookup to verify. 1644d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 16453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if a parse error occurred, false otherwise. 16463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedIdTemplateId(CXXScopeSpec &SS, 1647e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 16483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Name, 16493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation NameLoc, 16503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool EnteringContext, 1651b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1652d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId &Id, 1653e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool AssumeTemplateId) { 16540278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor assert((AssumeTemplateId || Tok.is(tok::less)) && 16550278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor "Expected '<' to finish parsing a template-id"); 16563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 16573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateTy Template; 16583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateNameKind TNK = TNK_Non_template; 16593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (Id.getKind()) { 16603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 1661014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 1662e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 1663d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (AssumeTemplateId) { 1664e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), SS, TemplateKWLoc, 1665d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Id, ObjectType, EnteringContext, 1666d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Template); 1667d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 1668d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 16691fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } else { 16701fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 16717c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, 16727c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateKWLoc.isValid(), Id, 16737c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara ObjectType, EnteringContext, Template, 16741fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 16751fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor 16761fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (TNK == TNK_Non_template && MemberOfUnknownSpecialization && 16771fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor ObjectType && IsTemplateArgumentList()) { 16781fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // We have something like t->getAs<T>(), where getAs is a 16791fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // member of an unknown specialization. However, this will only 16801fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 16811fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // before 'getAs' and treat this as a dependent template name. 16821fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor std::string Name; 16831fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) 16841fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = Id.Identifier->getName(); 16851fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else { 16861fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = "operator "; 16871fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_OperatorFunctionId) 16881fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += getOperatorSpelling(Id.OperatorFunctionId.Operator); 16891fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else 16901fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += Id.Identifier->getName(); 16911fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 16921fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Diag(Id.StartLocation, diag::err_missing_dependent_template_keyword) 16931fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << Name 16941fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << FixItHint::CreateInsertion(Id.StartLocation, "template "); 1695e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), 1696e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, Id, 1697e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 1698e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template); 1699d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 17001fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor return true; 17011fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 17021fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 17033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 17043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1705014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_ConstructorName: { 1706014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 17071fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1708014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 17097c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 17107c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 17111fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 17121fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 17133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1714014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 17153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1716014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_DestructorName: { 1717014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 17181fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1719014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 17202d1c21414199a7452f122598189363a3922605b1Douglas Gregor if (ObjectType) { 1721e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), 1722e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, TemplateName, 1723e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 1724e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template); 1725d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 17262d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 17272d1c21414199a7452f122598189363a3922605b1Douglas Gregor } else { 17287c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 17297c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 17301fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 17311fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 17322d1c21414199a7452f122598189363a3922605b1Douglas Gregor 1733b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (TNK == TNK_Non_template && !Id.DestructorName.get()) { 1734124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(NameLoc, diag::err_destructor_template_id) 1735124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor << Name << SS.getRange(); 17362d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 17372d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 17382d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 17393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1740014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 17413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 17423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor default: 17433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 17443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 17453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 17463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (TNK == TNK_Non_template) 17473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 17483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 17493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the enclosed template argument list. 17503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation LAngleLoc, RAngleLoc; 17513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgList TemplateArgs; 17520278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (Tok.is(tok::less) && 17530278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor ParseTemplateIdAfterTemplateName(Template, Id.StartLocation, 1754059101f922de6eb765601459925f4c8914420b23Douglas Gregor SS, true, LAngleLoc, 17553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgs, 17563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor RAngleLoc)) 17573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 17583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 17593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier || 1760e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_OperatorFunctionId || 1761e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_LiteralOperatorId) { 17623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Form a parsed representation of the template-id to be stored in the 17633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // UnqualifiedId. 17643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateIdAnnotation *TemplateId 176513bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer = TemplateIdAnnotation::Allocate(TemplateArgs.size(), TemplateIds); 17663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 17673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) { 17683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Name = Id.Identifier; 1769014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = OO_None; 17703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 17713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 1772014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Name = 0; 1773014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = Id.OperatorFunctionId.Operator; 1774014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 17753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 17763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1777059101f922de6eb765601459925f4c8914420b23Douglas Gregor TemplateId->SS = SS; 17782b28bf1a8fa6e1c598805374f29e4fbf45e751feBenjamin Kramer TemplateId->TemplateKWLoc = TemplateKWLoc; 17792b5289b6fd7e3d9899868410a498c081c9595662John McCall TemplateId->Template = Template; 17803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Kind = TNK; 17813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->LAngleLoc = LAngleLoc; 17823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->RAngleLoc = RAngleLoc; 1783314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor ParsedTemplateArgument *Args = TemplateId->getTemplateArgs(); 17843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor for (unsigned Arg = 0, ArgEnd = TemplateArgs.size(); 1785314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor Arg != ArgEnd; ++Arg) 17863f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Args[Arg] = TemplateArgs[Arg]; 17873f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 17883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setTemplateId(TemplateId); 17893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 17903f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 17913f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 17923f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Bundle the template arguments together. 17935354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateArgs); 1794fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara 17953f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Constructor and destructor names. 1796f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Type 179755d23c925b058be29b792008ddb7d68f6c4fa9a0Abramo Bagnara = Actions.ActOnTemplateIdType(SS, TemplateKWLoc, 179855d23c925b058be29b792008ddb7d68f6c4fa9a0Abramo Bagnara Template, NameLoc, 1799fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara LAngleLoc, TemplateArgsPtr, RAngleLoc, 1800fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true); 18013f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Type.isInvalid()) 18023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 18033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_ConstructorName) 18053f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setConstructorName(Type.get(), NameLoc, RAngleLoc); 18063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor else 18073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setDestructorName(Id.StartLocation, Type.get(), RAngleLoc); 18083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 18103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 18113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1812ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse an operator-function-id or conversion-function-id as part 1813ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// of a C++ unqualified-id. 18143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1815ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// This routine is responsible only for parsing the operator-function-id or 1816ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id; it does not handle template arguments in any way. 18173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1818ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 18193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id: [C++ 13.5] 18203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 'operator' operator 18213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1822ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator: one of 18233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// new delete new[] delete[] 18243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// + - * / % ^ & | ~ 18253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ! = < > += -= *= /= %= 18263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ^= &= |= << >> >>= <<= == != 18273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// <= >= && || ++ -- , ->* -> 18283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// () [] 18293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-function-id: [C++ 12.3.2] 18313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator conversion-type-id 18323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-type-id: 18343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// type-specifier-seq conversion-declarator[opt] 18353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-declarator: 18373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ptr-operator conversion-declarator[opt] 18383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \endcode 18393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18401ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param SS The nested-name-specifier that preceded this unqualified-id. If 18413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 18423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we are entering the scope of the 18443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 18453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1846ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 1847ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// expression, the type of the base object whose member is being accessed. 1848ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1849ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 1850ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1851ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \returns true if parsing fails, false otherwise. 1852ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregorbool Parser::ParseUnqualifiedIdOperator(CXXScopeSpec &SS, bool EnteringContext, 1853b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1854ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId &Result) { 1855ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 1856ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1857ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'operator' keyword. 1858ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation KeywordLoc = ConsumeToken(); 1859ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1860ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Determine what kind of operator name we have. 1861ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor unsigned SymbolIdx = 0; 1862ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation SymbolLocations[3]; 1863ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Op = OO_None; 1864ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor switch (Tok.getKind()) { 1865ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_new: 1866ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_delete: { 1867ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor bool isNew = Tok.getKind() == tok::kw_new; 1868ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'new' or 'delete'. 1869ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); 18706ee326af4e77e6f05973486097884d7431f2108dRichard Smith // Check for array new/delete. 18716ee326af4e77e6f05973486097884d7431f2108dRichard Smith if (Tok.is(tok::l_square) && 187280ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith (!getLangOpts().CPlusPlus11 || NextToken().isNot(tok::l_square))) { 18734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '[' and ']'. 18744a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 18754a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 18764a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 18774a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 1878ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1879ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 18804a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 18814a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 1882ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_Array_New : OO_Array_Delete; 1883ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 1884ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_New : OO_Delete; 1885ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1886ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1887ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1888ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1889ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 1890ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::Token: \ 1891ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); \ 1892ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_##Name; \ 1893ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1894ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 1895ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#include "clang/Basic/OperatorKinds.def" 1896ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1897ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_paren: { 18984a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '(' and ')'. 18994a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 19004a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 19014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 19024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 1903ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1904ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 19054a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 19064a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 1907ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Call; 1908ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1909ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1910ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1911ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_square: { 19124a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '[' and ']'. 19134a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 19144a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 19154a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 19164a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 1917ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1918ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 19194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 19204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 1921ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Subscript; 1922ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1923ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1924ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1925ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::code_completion: { 1926ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Code completion for the operator name. 192723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOperatorName(getCurScope()); 19287d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 1929ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Don't try to parse any further. 1930ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1931ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1932ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1933ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor default: 1934ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1935ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1936ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1937ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Op != OO_None) { 1938ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // We have parsed an operator-function-id. 1939ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setOperatorFunctionId(KeywordLoc, Op, SymbolLocations); 1940ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 1941ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 19420486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 19430486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // Parse a literal-operator-id. 19440486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // 1945aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // literal-operator-id: C++11 [over.literal] 1946aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // operator string-literal identifier 1947aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // operator user-defined-string-literal 19480486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 194980ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11 && isTokenStringLiteral()) { 19507fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok.getLocation(), diag::warn_cxx98_compat_literal_operator); 195133762775706e81c17ca774102ceda36049ecc593Richard Smith 195233762775706e81c17ca774102ceda36049ecc593Richard Smith SourceLocation DiagLoc; 195333762775706e81c17ca774102ceda36049ecc593Richard Smith unsigned DiagId = 0; 195433762775706e81c17ca774102ceda36049ecc593Richard Smith 195533762775706e81c17ca774102ceda36049ecc593Richard Smith // We're past translation phase 6, so perform string literal concatenation 195633762775706e81c17ca774102ceda36049ecc593Richard Smith // before checking for "". 1957cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<Token, 4> Toks; 1958cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<SourceLocation, 4> TokLocs; 195933762775706e81c17ca774102ceda36049ecc593Richard Smith while (isTokenStringLiteral()) { 196033762775706e81c17ca774102ceda36049ecc593Richard Smith if (!Tok.is(tok::string_literal) && !DiagId) { 1961aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // C++11 [over.literal]p1: 1962aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // The string-literal or user-defined-string-literal in a 1963aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // literal-operator-id shall have no encoding-prefix [...]. 196433762775706e81c17ca774102ceda36049ecc593Richard Smith DiagLoc = Tok.getLocation(); 196533762775706e81c17ca774102ceda36049ecc593Richard Smith DiagId = diag::err_literal_operator_string_prefix; 196633762775706e81c17ca774102ceda36049ecc593Richard Smith } 196733762775706e81c17ca774102ceda36049ecc593Richard Smith Toks.push_back(Tok); 196833762775706e81c17ca774102ceda36049ecc593Richard Smith TokLocs.push_back(ConsumeStringToken()); 196999831e4677a7e2e051af636221694d60ba31fcdbRichard Smith } 19700486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 197133762775706e81c17ca774102ceda36049ecc593Richard Smith StringLiteralParser Literal(Toks.data(), Toks.size(), PP); 197233762775706e81c17ca774102ceda36049ecc593Richard Smith if (Literal.hadError) 197333762775706e81c17ca774102ceda36049ecc593Richard Smith return true; 197433762775706e81c17ca774102ceda36049ecc593Richard Smith 197533762775706e81c17ca774102ceda36049ecc593Richard Smith // Grab the literal operator's suffix, which will be either the next token 197633762775706e81c17ca774102ceda36049ecc593Richard Smith // or a ud-suffix from the string literal. 197733762775706e81c17ca774102ceda36049ecc593Richard Smith IdentifierInfo *II = 0; 197833762775706e81c17ca774102ceda36049ecc593Richard Smith SourceLocation SuffixLoc; 197933762775706e81c17ca774102ceda36049ecc593Richard Smith if (!Literal.getUDSuffix().empty()) { 198033762775706e81c17ca774102ceda36049ecc593Richard Smith II = &PP.getIdentifierTable().get(Literal.getUDSuffix()); 198133762775706e81c17ca774102ceda36049ecc593Richard Smith SuffixLoc = 198233762775706e81c17ca774102ceda36049ecc593Richard Smith Lexer::AdvanceToTokenCharacter(TokLocs[Literal.getUDSuffixToken()], 198333762775706e81c17ca774102ceda36049ecc593Richard Smith Literal.getUDSuffixOffset(), 19844e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie PP.getSourceManager(), getLangOpts()); 198533762775706e81c17ca774102ceda36049ecc593Richard Smith } else if (Tok.is(tok::identifier)) { 198633762775706e81c17ca774102ceda36049ecc593Richard Smith II = Tok.getIdentifierInfo(); 198733762775706e81c17ca774102ceda36049ecc593Richard Smith SuffixLoc = ConsumeToken(); 198833762775706e81c17ca774102ceda36049ecc593Richard Smith TokLocs.push_back(SuffixLoc); 198933762775706e81c17ca774102ceda36049ecc593Richard Smith } else { 19900486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Diag(Tok.getLocation(), diag::err_expected_ident); 19910486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt return true; 19920486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 19930486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 199433762775706e81c17ca774102ceda36049ecc593Richard Smith // The string literal must be empty. 199533762775706e81c17ca774102ceda36049ecc593Richard Smith if (!Literal.GetString().empty() || Literal.Pascal) { 1996aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // C++11 [over.literal]p1: 1997aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // The string-literal or user-defined-string-literal in a 1998aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // literal-operator-id shall [...] contain no characters 1999aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // other than the implicit terminating '\0'. 200033762775706e81c17ca774102ceda36049ecc593Richard Smith DiagLoc = TokLocs.front(); 200133762775706e81c17ca774102ceda36049ecc593Richard Smith DiagId = diag::err_literal_operator_string_not_empty; 200233762775706e81c17ca774102ceda36049ecc593Richard Smith } 200333762775706e81c17ca774102ceda36049ecc593Richard Smith 200433762775706e81c17ca774102ceda36049ecc593Richard Smith if (DiagId) { 200533762775706e81c17ca774102ceda36049ecc593Richard Smith // This isn't a valid literal-operator-id, but we think we know 200633762775706e81c17ca774102ceda36049ecc593Richard Smith // what the user meant. Tell them what they should have written. 2007cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallString<32> Str; 200833762775706e81c17ca774102ceda36049ecc593Richard Smith Str += "\"\" "; 200933762775706e81c17ca774102ceda36049ecc593Richard Smith Str += II->getName(); 201033762775706e81c17ca774102ceda36049ecc593Richard Smith Diag(DiagLoc, DiagId) << FixItHint::CreateReplacement( 201133762775706e81c17ca774102ceda36049ecc593Richard Smith SourceRange(TokLocs.front(), TokLocs.back()), Str); 201233762775706e81c17ca774102ceda36049ecc593Richard Smith } 201333762775706e81c17ca774102ceda36049ecc593Richard Smith 201433762775706e81c17ca774102ceda36049ecc593Richard Smith Result.setLiteralOperatorId(II, KeywordLoc, SuffixLoc); 20153e518bda00d710754ca077cf9be8dd821e16a854Sean Hunt return false; 20160486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 2017ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2018ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse a conversion-function-id. 2019ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2020ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-function-id: [C++ 12.3.2] 2021ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator conversion-type-id 2022ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2023ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-type-id: 2024ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // type-specifier-seq conversion-declarator[opt] 2025ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2026ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-declarator: 2027ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operator conversion-declarator[opt] 2028ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2029ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the type-specifier-seq. 20300b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 2031f6e6fc801c700c7b8ac202ddbe550d9843a816fcDouglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) // FIXME: ObjectType? 2032ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2033ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2034ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 2035ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operators. 2036ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 2037ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 2038ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2039ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Finish up the type. 2040f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Ty = Actions.ActOnTypeName(getCurScope(), D); 2041ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Ty.isInvalid()) 2042ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2043ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2044ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Note that this is a conversion-function-id. 2045ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setConversionFunctionId(KeywordLoc, Ty.get(), 2046ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor D.getSourceRange().getEnd()); 2047ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 2048ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 2049ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2050ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse a C++ unqualified-id (or a C identifier), which describes the 2051ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// name of an entity. 2052ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2053ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 2054ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// unqualified-id: [C++ expr.prim.general] 2055ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// identifier 2056ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator-function-id 2057ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id 2058ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// [C++0x] literal-operator-id [TODO] 2059ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// ~ class-name 2060ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template-id 2061ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2062ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \endcode 2063ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 20641ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param SS The nested-name-specifier that preceded this unqualified-id. If 2065ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 2066ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2067ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param EnteringContext whether we are entering the scope of the 2068ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// nested-name-specifier. 2069ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 20703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowDestructorName whether we allow parsing of a destructor name. 20713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 20723f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowConstructorName whether we allow parsing a constructor name. 20733f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 207446df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 207546df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 207646df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 20773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 20783f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 20793f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if parsing fails, false otherwise. 20803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedId(CXXScopeSpec &SS, bool EnteringContext, 20813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowDestructorName, 20823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowConstructorName, 2083b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 2084e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation& TemplateKWLoc, 20853f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor UnqualifiedId &Result) { 20860278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 20870278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // Handle 'A::template B'. This is for template-ids which have not 20880278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // already been annotated by ParseOptionalCXXScopeSpecifier(). 20890278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor bool TemplateSpecified = false; 20904e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::kw_template) && 20910278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (ObjectType || SS.isSet())) { 20920278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified = true; 20930278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateKWLoc = ConsumeToken(); 20940278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor } 20950278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 20963f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 20973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // identifier 20983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (when it hasn't already been annotated) 20993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::identifier)) { 21003f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Consume the identifier. 21013f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Id = Tok.getIdentifierInfo(); 21023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation IdLoc = ConsumeToken(); 21033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 21044e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 2105b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // If we're not in C++, only identifiers matter. Record the 2106b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // identifier and return. 2107b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor Result.setIdentifier(Id, IdLoc); 2108b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor return false; 2109b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor } 2110b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor 21113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (AllowConstructorName && 211223c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*Id, getCurScope(), &SS)) { 21133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed a constructor name. 2114fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType Ty = Actions.getTypeName(*Id, IdLoc, getCurScope(), 2115fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara &SS, false, false, 2116fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType(), 2117fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true, 2118fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*NonTrivialTypeSourceInfo=*/true); 2119fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara Result.setConstructorName(Ty, IdLoc, IdLoc); 21203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 21213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed an identifier. 21223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setIdentifier(Id, IdLoc); 21233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 21243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 21253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // If the next token is a '<', we may have a template. 21260278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) 2127e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, Id, IdLoc, 2128e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2129e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 21303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 21313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 21323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 21333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 21343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 21353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (already parsed and annotated) 21363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::annot_template_id)) { 213725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 21380efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 21390efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // If the template-name names the current class, then this is a constructor 21400efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (AllowConstructorName && TemplateId->Name && 214123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*TemplateId->Name, getCurScope(), &SS)) { 21420efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (SS.isSet()) { 21430efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // C++ [class.qual]p2 specifies that a qualified template-name 21440efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // is taken as the constructor name where a constructor can be 21450efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // declared. Thus, the template arguments are extraneous, so 21460efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // complain about them and remove them entirely. 21470efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Diag(TemplateId->TemplateNameLoc, 21480efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor diag::err_out_of_line_constructor_template_id) 21490efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor << TemplateId->Name 2150849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval( 21510efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor SourceRange(TemplateId->LAngleLoc, TemplateId->RAngleLoc)); 2152fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType Ty = Actions.getTypeName(*TemplateId->Name, 2153fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara TemplateId->TemplateNameLoc, 2154fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara getCurScope(), 2155fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara &SS, false, false, 2156fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType(), 2157fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true, 2158fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*NontrivialTypeSourceInfo=*/true); 2159fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara Result.setConstructorName(Ty, TemplateId->TemplateNameLoc, 21600efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->RAngleLoc); 21610efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 21620efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 21630efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 21640efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 21650efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setConstructorTemplateId(TemplateId); 21660efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 21670efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 21680efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 21690efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 21703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have already parsed a template-id; consume the annotation token as 21713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // our unqualified-id. 21720efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setTemplateId(TemplateId); 2173e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc = TemplateId->TemplateKWLoc; 21743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor ConsumeToken(); 21753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 21763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 21773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 21783f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 21793f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // operator-function-id 21803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // conversion-function-id 21813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::kw_operator)) { 2182ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, Result)) 21833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 21843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 2185e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // If we have an operator-function-id or a literal-operator-id and the next 2186e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // token is a '<', we may have a 2187ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2188ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // template-id: 2189ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator-function-id < template-argument-list[opt] > 2190e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if ((Result.getKind() == UnqualifiedId::IK_OperatorFunctionId || 2191e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Result.getKind() == UnqualifiedId::IK_LiteralOperatorId) && 21920278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (TemplateSpecified || Tok.is(tok::less))) 2193e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, 2194e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 0, SourceLocation(), 2195e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2196e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 21973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 21983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 21993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 22003f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22014e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && 2202b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor (AllowDestructorName || SS.isSet()) && Tok.is(tok::tilde)) { 22033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // C++ [expr.unary.op]p10: 22043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // There is an ambiguity in the unary-expression ~X(), where X is a 22053f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // class-name. The ambiguity is resolved in favor of treating ~ as a 22063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unary complement rather than treating ~X as referring to a destructor. 22073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the '~'. 22093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 221053a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie 221153a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie if (SS.isEmpty() && Tok.is(tok::kw_decltype)) { 221253a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie DeclSpec DS(AttrFactory); 221353a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie SourceLocation EndLoc = ParseDecltypeSpecifier(DS); 221453a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie if (ParsedType Type = Actions.getDestructorType(DS, ObjectType)) { 221553a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie Result.setDestructorName(TildeLoc, Type, EndLoc); 221653a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie return false; 221753a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie } 221853a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie return true; 221953a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie } 22203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name. 22223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.isNot(tok::identifier)) { 2223124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 22243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 22253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 22263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name (or template-name in a simple-template-id). 22283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *ClassName = Tok.getIdentifierInfo(); 22293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation ClassNameLoc = ConsumeToken(); 22303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22310278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) { 2232b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Result.setDestructorName(TildeLoc, ParsedType(), ClassNameLoc); 2233e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, 2234e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ClassName, ClassNameLoc, 2235e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2236e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 22372d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 22382d1c21414199a7452f122598189363a3922605b1Douglas Gregor 22393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Note that this is a destructor name. 2240b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType Ty = Actions.getDestructorName(TildeLoc, *ClassName, 2241b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ClassNameLoc, getCurScope(), 2242b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall SS, ObjectType, 2243b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext); 2244124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor if (!Ty) 22453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 2246124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor 22473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setDestructorName(TildeLoc, Ty, ClassNameLoc); 22483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 22493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 22503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22512d1c21414199a7452f122598189363a3922605b1Douglas Gregor Diag(Tok, diag::err_expected_unqualified_id) 22524e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie << getLangOpts().CPlusPlus; 22533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 22543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 22553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 22564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 22574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 22581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 225959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 226059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 226159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 22624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 22634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 22644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 22654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 22664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 22674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 22684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 22694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 22704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 22714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 2272cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 2273cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 2274893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor/// [GNU] attributes type-specifier-seq new-declarator[opt] 2275cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 2276cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 2277cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 2278cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 2279cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 22804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 22814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 2282dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] braced-init-list 22834c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 228460d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 228559232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 228659232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 228759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 22884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 22894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 22904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 22914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 22924e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer ExprVector PlacementArgs; 22934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 22944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 22954bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor SourceRange TypeIdParens; 22960b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 22970b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::CXXNewContext); 22984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 22994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 23004a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 23014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 23024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor PlacementLParen = T.getOpenLocation(); 2303cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 2304cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 230520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2306cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 23074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 23084a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 23094a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor PlacementRParen = T.getCloseLocation(); 2310cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 2311cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 231220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2313cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 23144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2315cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 23164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 23174a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor TypeIdParens = T.getRange(); 23184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 23194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 23204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 23214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 23224a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 23234a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 2324893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2325cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 2326ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2327cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 23284a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 23294a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor TypeIdParens = T.getRange(); 23304c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2331893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2332cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2333cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2334ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2335ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2336cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2337cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2338ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 23394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 23404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 23414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2342cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 2343cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 2344893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2345cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2346cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2347ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2348ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2349cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2350cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2351ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 23524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 2353eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 2354cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 235520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2356cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 23574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 23582aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl ExprResult Initializer; 23594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 23604c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 23612aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 23624e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer ExprVector ConstructorArgs; 23634a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 23644a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 23654a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor ConstructorLParen = T.getOpenLocation(); 23664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 23674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 2368cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 2369cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 237020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2371cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 23724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 23734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 23744a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor ConstructorRParen = T.getCloseLocation(); 2375cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 2376cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 237720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2378cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 23792aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl Initializer = Actions.ActOnParenListExpr(ConstructorLParen, 23802aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl ConstructorRParen, 23813fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer ConstructorArgs); 238280ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith } else if (Tok.is(tok::l_brace) && getLangOpts().CPlusPlus11) { 23837fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok.getLocation(), 23847fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_generalized_initializer_lists); 23852aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl Initializer = ParseBraceInitializer(); 23864c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 23872aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl if (Initializer.isInvalid()) 23882aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl return Initializer; 23894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2390f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 23913fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer PlacementArgs, PlacementRParen, 23922aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl TypeIdParens, DeclaratorInfo, Initializer.take()); 23934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 23944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 23954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 23964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 23974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 23984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 23994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 24004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 24014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 240259232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 24034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 24044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 24054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 24066ee326af4e77e6f05973486097884d7431f2108dRichard Smith // An array-size expression can't start with a lambda. 24076ee326af4e77e6f05973486097884d7431f2108dRichard Smith if (CheckProhibitedCXX11Attribute()) 24086ee326af4e77e6f05973486097884d7431f2108dRichard Smith continue; 24096ee326af4e77e6f05973486097884d7431f2108dRichard Smith 24104a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 24114a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 24124a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 241360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Size(first ? ParseExpression() 24142f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 24150e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 24164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 24174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SkipUntil(tok::r_square); 24184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 24194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 24204c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 24214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24224a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 24230b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall 2424ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling // Attributes here appertain to the array type. C++11 [expr.new]p5. 24256ee326af4e77e6f05973486097884d7431f2108dRichard Smith ParsedAttributes Attrs(AttrFactory); 24264e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(Attrs); 24276ee326af4e77e6f05973486097884d7431f2108dRichard Smith 24280b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall D.AddTypeInfo(DeclaratorChunk::getArray(0, 24297f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall /*static=*/false, /*star=*/false, 24304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Size.release(), 24314a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getOpenLocation(), 24324a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()), 24336ee326af4e77e6f05973486097884d7431f2108dRichard Smith Attrs, T.getCloseLocation()); 24344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 24364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 24374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 24384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 24394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24404c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 24414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 24424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 24434c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 24444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 24454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 24464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 24474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 24484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 24494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 2450ca0408fb49c1370430672acf2d770b7151cf71deJohn McCallbool Parser::ParseExpressionListOrTypeId( 24515f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVectorImpl<Expr*> &PlacementArgs, 245259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 24534c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 24544c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 2455cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 2456ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 2457cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 2458eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 24594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 24604c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24614c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 24624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 24634c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 24644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 24654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 24664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 24684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 24694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 247059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 247159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 247259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 247359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 247459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 24754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 24764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 24774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 247860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 247959232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 248059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 248159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 24824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 24834c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 24844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 24856ee326af4e77e6f05973486097884d7431f2108dRichard Smith if (Tok.is(tok::l_square) && NextToken().is(tok::r_square)) { 2486950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // C++11 [expr.delete]p1: 2487950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // Whenever the delete keyword is followed by empty square brackets, it 2488950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // shall be interpreted as [array delete]. 2489950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // [Footnote: A lambda expression with a lambda-introducer that consists 2490950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // of empty square brackets can follow the delete keyword if 2491950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // the lambda expression is enclosed in parentheses.] 2492950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // FIXME: Produce a better diagnostic if the '[]' is unambiguously a 2493950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // lambda-introducer. 24944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 24954a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 24964a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 24974a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 24984a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 24994a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 250020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 25014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 25024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 250360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Operand(ParseCastExpression(false)); 25040e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 25053fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Operand; 25064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25079ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, Operand.take()); 25084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 250964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 25101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) { 251164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 2512b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie default: llvm_unreachable("Not a known unary type trait."); 251364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 25149ef9875bbe19dc9f73c6c95b803d9a4945168690Joao Matos case tok::kw___has_nothrow_move_assign: return UTT_HasNothrowMoveAssign; 251564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 251620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 251764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 25189ef9875bbe19dc9f73c6c95b803d9a4945168690Joao Matos case tok::kw___has_trivial_move_assign: return UTT_HasTrivialMoveAssign; 2519023df37c27ee8035664fb62f206ca58f4e2a169dSean Hunt case tok::kw___has_trivial_constructor: 2520023df37c27ee8035664fb62f206ca58f4e2a169dSean Hunt return UTT_HasTrivialDefaultConstructor; 25219ef9875bbe19dc9f73c6c95b803d9a4945168690Joao Matos case tok::kw___has_trivial_move_constructor: 25229ef9875bbe19dc9f73c6c95b803d9a4945168690Joao Matos return UTT_HasTrivialMoveConstructor; 252320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 252464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 252564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 252664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 252720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_arithmetic: return UTT_IsArithmetic; 252820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_array: return UTT_IsArray; 252964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 253020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_complete_type: return UTT_IsCompleteType; 253120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_compound: return UTT_IsCompound; 253220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_const: return UTT_IsConst; 253364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 253464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 25355e9392ba18f5925e26cc5714d1412eda0d219826Douglas Gregor case tok::kw___is_final: return UTT_IsFinal; 253620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_floating_point: return UTT_IsFloatingPoint; 253720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_function: return UTT_IsFunction; 253820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_fundamental: return UTT_IsFundamental; 253920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_integral: return UTT_IsIntegral; 2540ea30e2f8667668173cf7433c3c80cf603bd922a4John McCall case tok::kw___is_interface_class: return UTT_IsInterfaceClass; 254120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_lvalue_reference: return UTT_IsLvalueReference; 254220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_function_pointer: return UTT_IsMemberFunctionPointer; 254320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_object_pointer: return UTT_IsMemberObjectPointer; 254420c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_pointer: return UTT_IsMemberPointer; 254520c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_object: return UTT_IsObject; 25464e61ddd644e9c6293697a966d98d7c1905cf63a8Chandler Carruth case tok::kw___is_literal: return UTT_IsLiteral; 25473840281126e7d10552c55f6fd8b1ec9483898906Chandler Carruth case tok::kw___is_literal_type: return UTT_IsLiteral; 254864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 254920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_pointer: return UTT_IsPointer; 255064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 255120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_reference: return UTT_IsReference; 255220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_rvalue_reference: return UTT_IsRvalueReference; 255320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_scalar: return UTT_IsScalar; 255420c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_signed: return UTT_IsSigned; 255520c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_standard_layout: return UTT_IsStandardLayout; 255620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_trivial: return UTT_IsTrivial; 2557feb375d31b7e9108b04a9f55b721d5e0c793a558Sean Hunt case tok::kw___is_trivially_copyable: return UTT_IsTriviallyCopyable; 255864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 255920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_unsigned: return UTT_IsUnsigned; 256020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_void: return UTT_IsVoid; 256120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_volatile: return UTT_IsVolatile; 256264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 25636ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 25646ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 25656ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichetstatic BinaryTypeTrait BinaryTypeTraitFromTokKind(tok::TokenKind kind) { 25666ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet switch(kind) { 256738c2b730a8553fa1cf369d0c5567f8b5d0a3dda8Francois Pichet default: llvm_unreachable("Not a known binary type trait"); 2568f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___is_base_of: return BTT_IsBaseOf; 256920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_convertible: return BTT_IsConvertible; 257020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_same: return BTT_IsSame; 2571f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___builtin_types_compatible_p: return BTT_TypeCompatible; 25729f3611365d0f2297a910cf246e056708726ed10aDouglas Gregor case tok::kw___is_convertible_to: return BTT_IsConvertibleTo; 257325d0a0f67d9e949ffbfc57bf487012f5cbfd886eDouglas Gregor case tok::kw___is_trivially_assignable: return BTT_IsTriviallyAssignable; 25746ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 257564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 257664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 25774ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregorstatic TypeTrait TypeTraitFromTokKind(tok::TokenKind kind) { 25784ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor switch (kind) { 25794ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor default: llvm_unreachable("Not a known type trait"); 25804ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor case tok::kw___is_trivially_constructible: 25814ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return TT_IsTriviallyConstructible; 25824ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 25834ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor} 25844ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 258521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegleystatic ArrayTypeTrait ArrayTypeTraitFromTokKind(tok::TokenKind kind) { 258621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch(kind) { 258721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley default: llvm_unreachable("Not a known binary type trait"); 258821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_rank: return ATT_ArrayRank; 258921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_extent: return ATT_ArrayExtent; 259021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 259121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 259221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2593552622067dc45013d240f73952fece703f5e63bdJohn Wiegleystatic ExpressionTrait ExpressionTraitFromTokKind(tok::TokenKind kind) { 2594552622067dc45013d240f73952fece703f5e63bdJohn Wiegley switch(kind) { 2595b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie default: llvm_unreachable("Not a known unary expression trait."); 2596552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_lvalue_expr: return ET_IsLValueExpr; 2597552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_rvalue_expr: return ET_IsRValueExpr; 2598552622067dc45013d240f73952fece703f5e63bdJohn Wiegley } 2599552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2600552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 260164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 260264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 260364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 260464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 260564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 260664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 260764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 260860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseUnaryTypeTrait() { 260964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 261064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 261164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 26124a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 26134a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 261464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 261564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 261664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 261764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 261864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 2619809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 262064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 26214a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 262264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 2623809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 2624809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 2625809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 26264a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, Ty.get(), T.getCloseLocation()); 262764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 2628f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 26296ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// ParseBinaryTypeTrait - Parse the built-in binary type-trait 26306ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// pseudo-functions that allow implementation of the TR1/C++0x type traits 26316ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// templates. 26326ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 26336ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// primary-expression: 26346ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// [GNU] binary-type-trait '(' type-id ',' type-id ')' 26356ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 26366ad6f2848d7652ab2991286eb48be440d3493b28Francois PichetExprResult Parser::ParseBinaryTypeTrait() { 26376ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet BinaryTypeTrait BTT = BinaryTypeTraitFromTokKind(Tok.getKind()); 26386ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SourceLocation Loc = ConsumeToken(); 26396ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 26404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 26414a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 26426ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 26436ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 26446ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult LhsTy = ParseTypeName(); 26456ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (LhsTy.isInvalid()) { 26466ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 26476ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 26486ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 26496ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 26506ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (ExpectAndConsume(tok::comma, diag::err_expected_comma)) { 26516ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 26526ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 26536ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 26546ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 26556ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult RhsTy = ParseTypeName(); 26566ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (RhsTy.isInvalid()) { 26576ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 26586ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 26596ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 26606ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 26614a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 26626ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 26634a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnBinaryTypeTrait(BTT, Loc, LhsTy.get(), RhsTy.get(), 26644a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 26656ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 26666ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 26674ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// \brief Parse the built-in type-trait pseudo-functions that allow 26684ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// implementation of the TR1/C++11 type traits templates. 26694ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// 26704ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// primary-expression: 26714ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// type-trait '(' type-id-seq ')' 26724ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// 26734ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// type-id-seq: 26744ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// type-id ...[opt] type-id-seq[opt] 26754ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// 26764ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas GregorExprResult Parser::ParseTypeTrait() { 26774ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor TypeTrait Kind = TypeTraitFromTokKind(Tok.getKind()); 26784ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor SourceLocation Loc = ConsumeToken(); 26794ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 26804ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor BalancedDelimiterTracker Parens(*this, tok::l_paren); 26814ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Parens.expectAndConsume(diag::err_expected_lparen)) 26824ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 26834ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 2684cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<ParsedType, 2> Args; 26854ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor do { 26864ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor // Parse the next type. 26874ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor TypeResult Ty = ParseTypeName(); 26884ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Ty.isInvalid()) { 26894ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Parens.skipToEnd(); 26904ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 26914ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 26924ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 26934ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor // Parse the ellipsis, if present. 26944ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Tok.is(tok::ellipsis)) { 26954ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Ty = Actions.ActOnPackExpansion(Ty.get(), ConsumeToken()); 26964ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Ty.isInvalid()) { 26974ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Parens.skipToEnd(); 26984ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 26994ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 27004ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 27014ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 27024ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor // Add this type to the list of arguments. 27034ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Args.push_back(Ty.get()); 27044ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 27054ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Tok.is(tok::comma)) { 27064ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor ConsumeToken(); 27074ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor continue; 27084ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 27094ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 27104ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor break; 27114ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } while (true); 27124ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 27134ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Parens.consumeClose()) 27144ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 27154ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 27164ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return Actions.ActOnTypeTrait(Kind, Loc, Args, Parens.getCloseLocation()); 27174ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor} 27184ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 271921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// ParseArrayTypeTrait - Parse the built-in array type-trait 272021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// pseudo-functions. 272121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 272221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// primary-expression: 272321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_rank' '(' type-id ')' 272421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_extent' '(' type-id ',' expression ')' 272521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 272621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John WiegleyExprResult Parser::ParseArrayTypeTrait() { 272721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ArrayTypeTrait ATT = ArrayTypeTraitFromTokKind(Tok.getKind()); 272821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SourceLocation Loc = ConsumeToken(); 272921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 27304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 27314a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 273221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 273321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 273421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley TypeResult Ty = ParseTypeName(); 273521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (Ty.isInvalid()) { 273621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SkipUntil(tok::comma); 273721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SkipUntil(tok::r_paren); 273821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 273921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 274021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 274121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch (ATT) { 274221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayRank: { 27434a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 27444a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), NULL, 27454a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 274621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 274721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayExtent: { 274821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (ExpectAndConsume(tok::comma, diag::err_expected_comma)) { 274921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SkipUntil(tok::r_paren); 275021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 275121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 275221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 275321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ExprResult DimExpr = ParseExpression(); 27544a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 275521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 27564a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), DimExpr.get(), 27574a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 275821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 275921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 27603026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie llvm_unreachable("Invalid ArrayTypeTrait!"); 276121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 276221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2763552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// ParseExpressionTrait - Parse built-in expression-trait 2764552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// pseudo-functions like __is_lvalue_expr( xxx ). 2765552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2766552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// primary-expression: 2767552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// [Embarcadero] expression-trait '(' expression ')' 2768552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2769552622067dc45013d240f73952fece703f5e63bdJohn WiegleyExprResult Parser::ParseExpressionTrait() { 2770552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExpressionTrait ET = ExpressionTraitFromTokKind(Tok.getKind()); 2771552622067dc45013d240f73952fece703f5e63bdJohn Wiegley SourceLocation Loc = ConsumeToken(); 2772552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 27734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 27744a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 2775552622067dc45013d240f73952fece703f5e63bdJohn Wiegley return ExprError(); 2776552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2777552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExprResult Expr = ParseExpression(); 2778552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 27794a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 2780552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 27814a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnExpressionTrait(ET, Loc, Expr.get(), 27824a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 2783552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2784552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2785552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2786f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 2787f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 2788f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 278960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 2790f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 2791b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &CastTy, 27924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker &Tracker) { 27934e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Should only be called for C++!"); 2794f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 2795f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 2796f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 279760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(true); 2798b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall CastTy = ParsedType(); 2799f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2800f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 2801f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2802f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 2803f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 2804f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 2805f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 2806f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2807f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 2808f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 2809f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 2810f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2811f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 2812a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 2813f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // 2814f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // It uses a scheme similar to parsing inline methods. The parenthesized 2815f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // tokens are cached, the context that follows is determined (possibly by 2816f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parsing a cast-expression), and then we re-introduce the cached tokens 2817f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // into the token stream and parse them appropriately. 2818f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 28191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenParseOption ParseAs; 2820f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis CachedTokens Toks; 2821f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2822f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Store the tokens of the parentheses. We will parse them after we determine 2823f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // the context that follows them. 282414b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis if (!ConsumeAndStoreUntil(tok::r_paren, Toks)) { 2825f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We didn't find the ')' we expected. 28264a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 2827f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 2828f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2829f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2830f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 2831f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = CompoundLiteral; 2832f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } else { 2833f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis bool NotCastExpr; 2834b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // FIXME: Special-case ++ and --: "(S())++;" is not a cast-expression 2835b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman if (Tok.is(tok::l_paren) && NextToken().is(tok::r_paren)) { 2836b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr = true; 2837b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } else { 2838b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // Try parsing the cast-expression that may follow. 2839b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // If it is not a cast-expression, NotCastExpr will be true and no token 2840b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // will be consumed. 2841b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman Result = ParseCastExpression(false/*isUnaryExpression*/, 2842b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman false/*isAddressofOperand*/, 2843b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall NotCastExpr, 28440a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // type-id has priority. 2845cd78e612d6fa8e214e6a6bb0e739a0c3e419df91Kaelyn Uhrain IsTypeCast); 2846b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } 2847f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2848f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // If we parsed a cast-expression, it's really a type-id, otherwise it's 2849f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // an expression. 2850f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = NotCastExpr ? SimpleExpr : CastExpr; 2851f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2852f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 28531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The current token should go after the cached tokens. 2854f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Toks.push_back(Tok); 2855f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Re-enter the stored parenthesized tokens into the token stream, so we may 2856f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parse them now. 2857f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis PP.EnterTokenStream(Toks.data(), Toks.size(), 2858f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis true/*DisableMacroExpansion*/, false/*OwnsTokens*/); 2859f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Drop the current token and bring the first cached one. It's the same token 2860f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // as when we entered this function. 2861f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ConsumeAnyToken(); 2862f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2863f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs >= CompoundLiteral) { 28640a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // Parse the type declarator. 28650a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 28660a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 28670a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 28680a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 2869f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2870f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Match the ')'. 28714a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 2872f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2873f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs == CompoundLiteral) { 2874f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ExprType = CompoundLiteral; 28750a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis TypeResult Ty = ParseTypeName(); 28764a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return ParseCompoundLiteralExpression(Ty.get(), 28774a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getOpenLocation(), 28784a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getCloseLocation()); 2879f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } 28801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2881f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We parsed '(' type-id ')' and the thing after it wasn't a '{'. 2882f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == CastExpr); 2883f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 28840a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis if (DeclaratorInfo.isInvalidType()) 2885f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ExprError(); 2886f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2887f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Result is what ParseCastExpression returned earlier. 2888f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 28894a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCastExpr(getCurScope(), Tracker.getOpenLocation(), 28904a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor DeclaratorInfo, CastTy, 28914a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getCloseLocation(), Result.take()); 28923fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 2893f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 28941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2895f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Not a compound literal, and not followed by a cast-expression. 2896f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == SimpleExpr); 2897f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2898f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 2899f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Result = ParseExpression(); 2900f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 29014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnParenExpr(Tracker.getOpenLocation(), 29024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tok.getLocation(), Result.take()); 2903f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2904f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 2905f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 2906f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SkipUntil(tok::r_paren); 2907f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 2908f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 29091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29104a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 29113fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 2912f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 2913