ParseExprCXX.cpp revision 2aed8b88613863f3c439cdfb205bdf8b608fb205
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ParseExprCXX.cpp - C++ Expression Parsing ------------------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the Expression parsing implementation for C++. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14500d3297d2a21edeac4d46cbcbe21bc2352c2a28Chris Lattner#include "clang/Parse/ParseDiagnostic.h" 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Parser.h" 16bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor#include "RAIIObjectsForParser.h" 17dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman#include "clang/Basic/PrettyStackTrace.h" 1819510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 19ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor#include "clang/Sema/Scope.h" 2019510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor#include "llvm/Support/ErrorHandling.h" 223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic int SelectDigraphErrorMessage(tok::TokenKind Kind) { 26ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith switch (Kind) { 27ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_template: return 0; 28ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_const_cast: return 1; 29ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_dynamic_cast: return 2; 30ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_reinterpret_cast: return 3; 31ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_static_cast: return 4; 32ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith default: 33b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Unknown type for digraph error message."); 34ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith } 35ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 36ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 37ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Are the two tokens adjacent in the same source file? 38ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic bool AreTokensAdjacent(Preprocessor &PP, Token &First, Token &Second) { 39ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceManager &SM = PP.getSourceManager(); 40ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceLocation FirstLoc = SM.getSpellingLoc(First.getLocation()); 41a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation FirstEnd = FirstLoc.getLocWithOffset(First.getLength()); 42ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith return FirstEnd == SM.getSpellingLoc(Second.getLocation()); 43ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 44ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 45ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Suggest fixit for "<::" after a cast. 46ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic void FixDigraph(Parser &P, Preprocessor &PP, Token &DigraphToken, 47ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Token &ColonToken, tok::TokenKind Kind, bool AtDigraph) { 48ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Pull '<:' and ':' off token stream. 49ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 50ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(DigraphToken); 51ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(ColonToken); 52ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 53ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceRange Range; 54ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setBegin(DigraphToken.getLocation()); 55ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setEnd(ColonToken.getLocation()); 56ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith P.Diag(DigraphToken.getLocation(), diag::err_missing_whitespace_digraph) 57ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << SelectDigraphErrorMessage(Kind) 58ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << FixItHint::CreateReplacement(Range, "< ::"); 59ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 60ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Update token information to reflect their change in token type. 61ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setKind(tok::coloncolon); 62a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis ColonToken.setLocation(ColonToken.getLocation().getLocWithOffset(-1)); 63ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setLength(2); 64ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setKind(tok::less); 65ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setLength(1); 66ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 67ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Push new tokens back to token stream. 68ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(ColonToken); 69ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 70ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(DigraphToken); 71ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 72ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 73950be71c745409e373ae8a834490f9026c8ac222Richard Trieu// Check for '<::' which should be '< ::' instead of '[:' when following 74950be71c745409e373ae8a834490f9026c8ac222Richard Trieu// a template name. 75950be71c745409e373ae8a834490f9026c8ac222Richard Trieuvoid Parser::CheckForTemplateAndDigraph(Token &Next, ParsedType ObjectType, 76950be71c745409e373ae8a834490f9026c8ac222Richard Trieu bool EnteringContext, 77950be71c745409e373ae8a834490f9026c8ac222Richard Trieu IdentifierInfo &II, CXXScopeSpec &SS) { 78c11030ea936f6952deb5a1423ce1648173cd417eRichard Trieu if (!Next.is(tok::l_square) || Next.getLength() != 2) 79950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 80950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 81950be71c745409e373ae8a834490f9026c8ac222Richard Trieu Token SecondToken = GetLookAheadToken(2); 82950be71c745409e373ae8a834490f9026c8ac222Richard Trieu if (!SecondToken.is(tok::colon) || !AreTokensAdjacent(PP, Next, SecondToken)) 83950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 84950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 85950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateTy Template; 86950be71c745409e373ae8a834490f9026c8ac222Richard Trieu UnqualifiedId TemplateName; 87950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateName.setIdentifier(&II, Tok.getLocation()); 88950be71c745409e373ae8a834490f9026c8ac222Richard Trieu bool MemberOfUnknownSpecialization; 89950be71c745409e373ae8a834490f9026c8ac222Richard Trieu if (!Actions.isTemplateName(getCurScope(), SS, /*hasTemplateKeyword=*/false, 90950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateName, ObjectType, EnteringContext, 91950be71c745409e373ae8a834490f9026c8ac222Richard Trieu Template, MemberOfUnknownSpecialization)) 92950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 93950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 94950be71c745409e373ae8a834490f9026c8ac222Richard Trieu FixDigraph(*this, PP, Next, SecondToken, tok::kw_template, 95950be71c745409e373ae8a834490f9026c8ac222Richard Trieu /*AtDigraph*/false); 96950be71c745409e373ae8a834490f9026c8ac222Richard Trieu} 97950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Parse global scope or nested-name-specifier if present. 992dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1002dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// Parses a C++ global scope specifier ('::') or nested-name-specifier (which 1011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// may be preceded by '::'). Note that this routine will not parse ::new or 1022dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// ::delete; it will just leave them in the token stream. 103eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 104eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 105eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 106eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 107eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 108eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 109eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 110eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 1112dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier 'template'[opt] simple-template-id '::' 1122dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1132dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param SS the scope specifier that will be set to the parsed 1152dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier (or empty) 1162dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ObjectType if this nested-name-specifier is being parsed following 1182dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the "." or "->" of a member access expression, this parameter provides the 1192dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// type of the object whose members are being accessed. 120eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 1212dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \param EnteringContext whether we will be entering into the context of 1222dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the nested-name-specifier after parsing it. 1232dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 124d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param MayBePseudoDestructor When non-NULL, points to a flag that 125d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// indicates whether this nested-name-specifier may be part of a 126d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor name. In this case, the flag will be set false 127d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we don't actually end up parsing a destructor name. Moreorover, 128d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we do end up determining that we are parsing a destructor name, 129d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// the last component of the nested-name-specifier is not parsed as 130d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// part of the scope specifier. 131d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 132b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor/// member access expression, e.g., the \p T:: in \p p->T::m. 133b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor/// 1349ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// \returns true if there was an error parsing a scope specifier 135495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS, 136b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 137b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor bool EnteringContext, 1384147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet bool *MayBePseudoDestructor, 1394147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet bool IsTypename) { 1404bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis assert(getLang().CPlusPlus && 1417452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 1421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 143eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 144c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Actions.RestoreNestedNameSpecifierAnnotation(Tok.getAnnotationValue(), 145c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.getAnnotationRange(), 146c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor SS); 147eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 1489ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 149eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 150e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 15139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 15239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 1535b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 1545b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 1555b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 1565b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 1575b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 1581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15955a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 1602e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXGlobalScopeSpecifier(getCurScope(), ConsumeToken(), SS)) 1612e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor return true; 1622e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 16339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 164eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 165eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 166d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor bool CheckForDestructor = false; 167d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (MayBePseudoDestructor && *MayBePseudoDestructor) { 168d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CheckForDestructor = true; 169d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = false; 170d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 171d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 17242d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Tok.is(tok::kw_decltype) || Tok.is(tok::annot_decltype)) { 17342d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie DeclSpec DS(AttrFactory); 17442d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation DeclLoc = Tok.getLocation(); 17542d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation EndLoc = ParseDecltypeSpecifier(DS); 17642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Tok.isNot(tok::coloncolon)) { 17742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie AnnotateExistingDecltypeSpecifier(DS, DeclLoc, EndLoc); 17842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie return false; 17942d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie } 18042d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 18142d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation CCLoc = ConsumeToken(); 18242d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Actions.ActOnCXXNestedNameSpecifierDecltype(SS, DS, CCLoc)) 18342d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SS.SetInvalid(SourceRange(DeclLoc, CCLoc)); 18442d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 18542d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie HasScopeSpecifier = true; 18642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie } 18742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 18839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 1892dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (HasScopeSpecifier) { 1902dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // C++ [basic.lookup.classref]p5: 1912dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If the qualified-id has the form 1923b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 1932dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // ::class-name-or-namespace-name::... 1943b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 1952dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // the class-name-or-namespace-name is looked up in global scope as a 1962dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // class-name or namespace-name. 1972dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // 1982dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // To implement this, we clear out the object type as soon as we've 1992dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // seen a leading '::' or part of a nested-name-specifier. 200b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ObjectType = ParsedType(); 20181b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor 20281b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor if (Tok.is(tok::code_completion)) { 20381b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // Code completion for a nested-name-specifier, where the code 20481b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // code completion token follows the '::'. 20523c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteQualifiedId(getCurScope(), SS, EnteringContext); 206b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Include code completion token into the range of the scope otherwise 207b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // when we try to annotate the scope tokens the dangling code completion 208b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // token will cause assertion in 209b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Preprocessor::AnnotatePreviousCachedTokens. 2107d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis SS.setEndLoc(Tok.getLocation()); 2117d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 2127d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return true; 21381b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor } 2142dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor } 2151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 21777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // nested-name-specifier 'template'[opt] simple-template-id '::' 21877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 21977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // Parse the optional 'template' keyword, then make sure we have 22077cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // 'identifier <' after it. 22177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.is(tok::kw_template)) { 2222dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If we don't have a scope specifier or an object type, this isn't a 223eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // nested-name-specifier, since they aren't allowed to start with 224eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // 'template'. 2252dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (!HasScopeSpecifier && !ObjectType) 226eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman break; 227eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman 2287bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TentativeParsingAction TPA(*this); 22977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner SourceLocation TemplateKWLoc = ConsumeToken(); 230ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 231ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId TemplateName; 232ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Tok.is(tok::identifier)) { 233ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 2347bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 235ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 236ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else if (Tok.is(tok::kw_operator)) { 237ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, 2387bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName)) { 2397bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 240ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2417bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 242ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 243e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if (TemplateName.getKind() != UnqualifiedId::IK_OperatorFunctionId && 244e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt TemplateName.getKind() != UnqualifiedId::IK_LiteralOperatorId) { 245ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Diag(TemplateName.getSourceRange().getBegin(), 246ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor diag::err_id_after_template_in_nested_name_spec) 247ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor << TemplateName.getSourceRange(); 2487bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 249ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 250ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 251ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 2527bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 25377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 25477cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 2551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2567bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // If the next token is not '<', we have a qualified-id that refers 2577bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // to a template name, such as T::template apply, but is not a 2587bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // template-id. 2597bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor if (Tok.isNot(tok::less)) { 2607bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 2617bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor break; 2627bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 2637bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor 2647bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // Commit to parsing the template-id. 2657bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 266d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateTy Template; 267e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (TemplateNameKind TNK 268e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara = Actions.ActOnDependentTemplateName(getCurScope(), 269e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, TemplateName, 270e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 271e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template)) { 272e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateKWLoc, 273e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 274d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 275d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } else 2769ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 2771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27877cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner continue; 27977cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 2801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 2821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We have 28339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 28439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // simple-template-id '::' 28539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 28639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // So we need to check whether the simple-template-id is of the 287c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // right kind (it should name a type or be dependent), and then 288c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // convert it into a type within the nested-name-specifier. 28925a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 290d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde)) { 291d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 2929ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 293d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 294d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 2956cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor // Consume the template-id token. 2966cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor ConsumeToken(); 2976cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 2986cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 2996cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 3001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3016796fc1adcaf57c38d072a238b016b2834afbe0dDavid Blaikie HasScopeSpecifier = true; 3026cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 3036cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, 3046cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->getTemplateArgs(), 3056cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->NumArgs); 3066cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor 3076cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), 308e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, 309e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateId->TemplateKWLoc, 3106cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->Template, 3116cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->TemplateNameLoc, 3126cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->LAngleLoc, 3136cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateArgsPtr, 3146cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->RAngleLoc, 3156cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor CCLoc, 3166cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor EnteringContext)) { 3176cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation StartLoc 3186cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor = SS.getBeginLoc().isValid()? SS.getBeginLoc() 3196cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor : TemplateId->TemplateNameLoc; 3206cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SS.SetInvalid(SourceRange(StartLoc, CCLoc)); 32167b9e831943300ce54e564e601971828ce4def15Chris Lattner } 322eccce7e246a17e12a2afd6eabb9ac7c8d582db4eArgyrios Kyrtzidis 3236cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor continue; 32439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 32539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 3265c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 3275c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // The rest of the nested-name-specifier possibilities start with 3285c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // tok::identifier. 3295c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Tok.isNot(tok::identifier)) 3305c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner break; 3315c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 3325c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner IdentifierInfo &II = *Tok.getIdentifierInfo(); 3335c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 3345c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 3355c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '::' 3365c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // namespace-name '::' 3375c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier identifier '::' 3385c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Token Next = NextToken(); 33946646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 34046646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // If we get foo:bar, this is almost certainly a typo for foo::bar. Recover 34146646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // and emit a fixit hint for it. 342b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor if (Next.is(tok::colon) && !ColonIsSacred) { 3432e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.IsInvalidUnlessNestedName(getCurScope(), SS, II, 3442e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Tok.getLocation(), 3452e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Next.getLocation(), ObjectType, 346b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor EnteringContext) && 347b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // If the token after the colon isn't an identifier, it's still an 348b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // error, but they probably meant something else strange so don't 349b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // recover like this. 350b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor PP.LookAhead(1).is(tok::identifier)) { 351b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Diag(Next, diag::err_unexected_colon_in_nested_name_spec) 352849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateReplacement(Next.getLocation(), "::"); 353b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor 354b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // Recover as if the user wrote '::'. 355b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Next.setKind(tok::coloncolon); 356b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor } 35746646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner } 35846646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 3595c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::coloncolon)) { 36077549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde) && 36123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor !Actions.isNonTypeNestedNameSpecifier(getCurScope(), SS, Tok.getLocation(), 36277549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor II, ObjectType)) { 363d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 3649ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 365d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 366d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 3675c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have an identifier followed by a '::'. Lookup this name 3685c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // as the name in a nested-name-specifier. 3695c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation IdLoc = ConsumeToken(); 37046646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner assert((Tok.is(tok::coloncolon) || Tok.is(tok::colon)) && 37146646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner "NextToken() not working properly!"); 3725c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation CCLoc = ConsumeToken(); 3731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3742e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor HasScopeSpecifier = true; 3752e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), II, IdLoc, CCLoc, 3762e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor ObjectType, EnteringContext, SS)) 3772e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor SS.SetInvalid(SourceRange(IdLoc, CCLoc)); 3782e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor 3795c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 3805c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 3811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 382950be71c745409e373ae8a834490f9026c8ac222Richard Trieu CheckForTemplateAndDigraph(Next, ObjectType, EnteringContext, II, SS); 383ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 3845c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 3855c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '<' 3865c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::less)) { 3875c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner TemplateTy Template; 388014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 389014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(&II, Tok.getLocation()); 3901fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 39123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (TemplateNameKind TNK = Actions.isTemplateName(getCurScope(), SS, 3927c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, 393014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName, 3942dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType, 395495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor EnteringContext, 3961fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Template, 3971fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization)) { 3986796fc1adcaf57c38d072a238b016b2834afbe0dDavid Blaikie // We have found a template name, so annotate this token 3995c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // with a template-id annotation. We do not permit the 4005c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // template-id to be translated into a type annotation, 4015c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // because some clients (e.g., the parsing of class template 4025c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // specializations) still want to see the original template-id 4035c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // token. 404ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 405e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 406e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 4079ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 4085c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 409d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor } 410d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 411d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor if (MemberOfUnknownSpecialization && (ObjectType || SS.isSet()) && 4124147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet (IsTypename || IsTemplateArgumentList(1))) { 413d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // We have something like t::getAs<T>, where getAs is a 414d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // member of an unknown specialization. However, this will only 415d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 416d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // before 'getAs' and treat this as a dependent template name. 4174147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet unsigned DiagID = diag::err_missing_dependent_template_keyword; 41862ec1f2fd7368542bb926c04797fb07023547694Francois Pichet if (getLang().MicrosoftExt) 419cf320c6388c90f1938c264e87d77a0e43946e2c3Francois Pichet DiagID = diag::warn_missing_dependent_template_keyword; 4204147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 4214147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet Diag(Tok.getLocation(), DiagID) 422d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << II.getName() 423d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << FixItHint::CreateInsertion(Tok.getLocation(), "template "); 424d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 425d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TemplateNameKind TNK 42623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor = Actions.ActOnDependentTemplateName(getCurScope(), 427e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, SourceLocation(), 428d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, ObjectType, 429d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template)) { 430d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor // Consume the identifier. 431d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor ConsumeToken(); 432e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 433e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 434e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return true; 435d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } 436d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor else 437d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor return true; 438d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor 439d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor continue; 4405c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 4415c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 4425c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 44339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 44439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 44539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 44639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 4471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 448d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Even if we didn't see any pieces of a nested-name-specifier, we 449d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // still check whether there is a tilde in this position, which 450d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // indicates a potential pseudo-destructor. 451d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && Tok.is(tok::tilde)) 452d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 453d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 4549ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 455eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 456eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 457eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 458eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 459eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 460eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 461eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 462eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 463eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 464eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 465eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 466eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 467edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor/// '::' template-id 468eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 469eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 470eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 471eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 472eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 473eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 474eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 475eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 476eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 477eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 478eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 479eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 480eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 481eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 482eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 483eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 484eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 485eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 486eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 487eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 488eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 489eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 490eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 491eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 492eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 493eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 494ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 495ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 496ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 497ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 498ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 49960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 500eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 501eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 502eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 503eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 504eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 505efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(SS, ParsedType(), /*EnteringContext=*/false); 506e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 507e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 50802a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor UnqualifiedId Name; 509e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(SS, 510e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*EnteringContext=*/false, 511e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AllowDestructorName=*/false, 512e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AllowConstructorName=*/false, 513b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 514e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, 51502a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor Name)) 51602a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor return ExprError(); 517b681b61fea36618778b8030360e90e3f4641233bJohn McCall 518b681b61fea36618778b8030360e90e3f4641233bJohn McCall // This is only the direct operand of an & operator if it is not 519b681b61fea36618778b8030360e90e3f4641233bJohn McCall // followed by a postfix-expression suffix. 5209c72c6088d591ace8503b842d39448c2040f3033John McCall if (isAddressOfOperand && isPostfixExpressionSuffixStart()) 5219c72c6088d591ace8503b842d39448c2040f3033John McCall isAddressOfOperand = false; 522e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 523e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return Actions.ActOnIdExpression(getCurScope(), SS, TemplateKWLoc, Name, 524e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Tok.is(tok::l_paren), isAddressOfOperand); 525eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 526eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 527ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpression - Parse a C++0x lambda expression. 528ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 529ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-expression: 530ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer lambda-declarator[opt] compound-statement 531ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 532ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer: 533ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '[' lambda-capture[opt] ']' 534ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 535ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-capture: 536ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default 537ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list 538ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default ',' capture-list 539ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 540ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default: 541ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' 542ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '=' 543ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 544ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list: 545ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture 546ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list ',' capture 547ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 548ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture: 549ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// identifier 550ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' identifier 551ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'this' 552ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 553ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-declarator: 554ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '(' parameter-declaration-clause ')' attribute-specifier[opt] 555ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'mutable'[opt] exception-specification[opt] 556ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// trailing-return-type[opt] 557ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 558ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpression() { 559ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-introducer. 560ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 561ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 562ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::Optional<unsigned> DiagID(ParseLambdaIntroducer(Intro)); 563ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 564ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, DiagID.getValue()); 565ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SkipUntil(tok::r_square); 566dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman SkipUntil(tok::l_brace); 567dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman SkipUntil(tok::r_brace); 568dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprError(); 569ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 570ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 571ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 572ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 573ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 574ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// TryParseLambdaExpression - Use lookahead and potentially tentative 575ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// parsing to determine if we are looking at a C++0x lambda expression, and parse 576ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// it if we are. 577ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 578ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// If we are not looking at a lambda expression, returns ExprError(). 579ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::TryParseLambdaExpression() { 580ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor assert(getLang().CPlusPlus0x 581ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && Tok.is(tok::l_square) 582ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && "Not at the start of a possible lambda expression."); 583ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 584ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor const Token Next = NextToken(), After = GetLookAheadToken(2); 585ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 586ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // If lookahead indicates this is a lambda... 587ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::r_square) || // [] 588ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Next.is(tok::equal) || // [= 589ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::amp) && // [&] or [&, 590ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (After.is(tok::r_square) || 591ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::comma))) || 592ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::identifier) && // [identifier] 593ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::r_square))) { 594ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpression(); 595ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 596ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 597dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // If lookahead indicates an ObjC message send... 598dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // [identifier identifier 599ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::identifier) && After.is(tok::identifier)) { 600dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprEmpty(); 601ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 602ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 603dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // Here, we're stuck: lambda introducers and Objective-C message sends are 604dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // unambiguous, but it requires arbitrary lookhead. [a,b,c,d,e,f,g] is a 605dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // lambda, and [a,b,c,d,e,f,g h] is a Objective-C message send. Instead of 606dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // writing two routines to parse a lambda introducer, just try to parse 607dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // a lambda introducer first, and fall back if that fails. 608dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // (TryParseLambdaIntroducer never produces any diagnostic output.) 609ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 610ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (TryParseLambdaIntroducer(Intro)) 611dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprEmpty(); 612ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 613ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 614ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 615ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpression - Parse a lambda introducer. 616ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 617ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// Returns a DiagnosticID if it hit something unexpected. 61881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregorllvm::Optional<unsigned> Parser::ParseLambdaIntroducer(LambdaIntroducer &Intro){ 619ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor typedef llvm::Optional<unsigned> DiagResult; 620ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 621ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor assert(Tok.is(tok::l_square) && "Lambda expressions begin with '['."); 6224a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 6234a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 6244a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 6254a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Intro.Range.setBegin(T.getOpenLocation()); 626ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 627ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor bool first = true; 628ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 629ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture-default. 630ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp) && 631ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (NextToken().is(tok::comma) || NextToken().is(tok::r_square))) { 632ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByRef; 6333ac109cd17151bb8ad3a40b0cbb0e1923cd6c4a0Douglas Gregor Intro.DefaultLoc = ConsumeToken(); 634ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 635ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::equal)) { 636ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByCopy; 6373ac109cd17151bb8ad3a40b0cbb0e1923cd6c4a0Douglas Gregor Intro.DefaultLoc = ConsumeToken(); 638ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 639ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 640ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 641ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor while (Tok.isNot(tok::r_square)) { 642ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (!first) { 64381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.isNot(tok::comma)) { 64481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.is(tok::code_completion)) { 64581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 64681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/false); 64781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor ConsumeCodeCompletionToken(); 64881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 64981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 65081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 651ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_comma_or_rsquare); 65281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 653ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 654ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 655ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 65681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.is(tok::code_completion)) { 65781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor // If we're in Objective-C++ and we have a bare '[', then this is more 65881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor // likely to be a message receiver. 65981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (getLang().ObjC1 && first) 66081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteObjCMessageReceiver(getCurScope()); 66181f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor else 66281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 66381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/false); 66481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor ConsumeCodeCompletionToken(); 66581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 66681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 667ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 66881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor first = false; 66981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 670ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture. 671ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaCaptureKind Kind = LCK_ByCopy; 672ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation Loc; 673ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor IdentifierInfo* Id = 0; 674a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor SourceLocation EllipsisLoc; 675a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor 676ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::kw_this)) { 677ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_This; 678ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 679ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 680ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp)) { 681ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_ByRef; 682ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 68381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 68481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.is(tok::code_completion)) { 68581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 68681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/true); 68781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor ConsumeCodeCompletionToken(); 68881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 68981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 690ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 691ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 692ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::identifier)) { 693ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Id = Tok.getIdentifierInfo(); 694ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 695a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor 696a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor if (Tok.is(tok::ellipsis)) 697a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor EllipsisLoc = ConsumeToken(); 698ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::kw_this)) { 699ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // FIXME: If we want to suggest a fixit here, will need to return more 700ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // than just DiagnosticID. Perhaps full DiagnosticBuilder that can be 701ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Clear()ed to prevent emission in case of tentative parsing? 702ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_this_captured_by_reference); 703ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 704ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_capture); 705ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 706ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 707ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 708a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor Intro.addCapture(Kind, Loc, Id, EllipsisLoc); 709ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 710ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 7114a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 7124a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Intro.Range.setEnd(T.getCloseLocation()); 713ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 714ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(); 715ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 716ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 71781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor/// TryParseLambdaIntroducer - Tentatively parse a lambda introducer. 718ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 719ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// Returns true if it hit something unexpected. 720ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregorbool Parser::TryParseLambdaIntroducer(LambdaIntroducer &Intro) { 721ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TentativeParsingAction PA(*this); 722ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 723ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::Optional<unsigned> DiagID(ParseLambdaIntroducer(Intro)); 724ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 725ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 726ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Revert(); 727ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return true; 728ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 729ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 730ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Commit(); 731ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return false; 732ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 733ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 734ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpressionAfterIntroducer - Parse the rest of a lambda 735ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// expression. 736ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpressionAfterIntroducer( 737ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer &Intro) { 738dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman SourceLocation LambdaBeginLoc = Intro.Range.getBegin(); 739dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman Diag(LambdaBeginLoc, diag::warn_cxx98_compat_lambda); 740dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 741dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman PrettyStackTraceLoc CrashInfo(PP.getSourceManager(), LambdaBeginLoc, 742dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman "lambda expression parsing"); 743dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 744ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-declarator[opt]. 745ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclSpec DS(AttrFactory); 746f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman Declarator D(DS, Declarator::LambdaExprContext); 747ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 748ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::l_paren)) { 749ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseScope PrototypeScope(this, 750ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::FunctionPrototypeScope | 751ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::DeclScope); 752ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 7534a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SourceLocation DeclLoc, DeclEndLoc; 7544a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 7554a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 7564a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor DeclLoc = T.getOpenLocation(); 757ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 758ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse parameter-declaration-clause. 759ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParsedAttributes Attr(AttrFactory); 760ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::SmallVector<DeclaratorChunk::ParamInfo, 16> ParamInfo; 761ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation EllipsisLoc; 762ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 763ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.isNot(tok::r_paren)) 764ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseParameterDeclarationClause(D, Attr, ParamInfo, EllipsisLoc); 765ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 7664a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 7674a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor DeclEndLoc = T.getCloseLocation(); 768ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 769ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse 'mutable'[opt]. 770ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation MutableLoc; 771ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::kw_mutable)) { 772ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MutableLoc = ConsumeToken(); 773ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = MutableLoc; 774ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 775ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 776ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse exception-specification[opt]. 777ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExceptionSpecificationType ESpecType = EST_None; 778ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange ESpecRange; 779ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::SmallVector<ParsedType, 2> DynamicExceptions; 780ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor llvm::SmallVector<SourceRange, 2> DynamicExceptionRanges; 781ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExprResult NoexceptExpr; 782ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ESpecType = MaybeParseExceptionSpecification(ESpecRange, 783ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions, 784ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptionRanges, 785ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr); 786ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 787ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (ESpecType != EST_None) 788ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = ESpecRange.getEnd(); 789ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 790ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse attribute-specifier[opt]. 791ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MaybeParseCXX0XAttributes(Attr, &DeclEndLoc); 792ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 793ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse trailing-return-type[opt]. 794ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParsedType TrailingReturnType; 795ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::arrow)) { 796ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange Range; 797ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TrailingReturnType = ParseTrailingReturnType(Range).get(); 798ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Range.getEnd().isValid()) 799ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = Range.getEnd(); 800ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 801ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 802ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PrototypeScope.Exit(); 803ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 804ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor D.AddTypeInfo(DeclaratorChunk::getFunction(/*hasProto=*/true, 805ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor /*isVariadic=*/EllipsisLoc.isValid(), 806ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor EllipsisLoc, 807ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParamInfo.data(), ParamInfo.size(), 808ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DS.getTypeQualifiers(), 809ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor /*RefQualifierIsLValueRef=*/true, 810ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor /*RefQualifierLoc=*/SourceLocation(), 81143f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor /*ConstQualifierLoc=*/SourceLocation(), 81243f5103f8051bbac19022e6edaf7d9138b0f3c0fDouglas Gregor /*VolatileQualifierLoc=*/SourceLocation(), 813ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MutableLoc, 814ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ESpecType, ESpecRange.getBegin(), 815ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.data(), 816ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptionRanges.data(), 817ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.size(), 818ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr.isUsable() ? 819ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr.get() : 0, 820ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclLoc, DeclEndLoc, D, 821ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TrailingReturnType), 822ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Attr, DeclEndLoc); 823ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 824ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 825906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman // FIXME: Rename BlockScope -> ClosureScope if we decide to continue using 826906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman // it. 827906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman ParseScope BodyScope(this, Scope::BlockScope | Scope::FnScope | 828906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman Scope::BreakScope | Scope::ContinueScope | 829906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman Scope::DeclScope); 830906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman 831ec9ea7200718478e8a976529defbe21942a11c9cEli Friedman Actions.ActOnStartOfLambdaDefinition(Intro, D, getCurScope()); 832ec9ea7200718478e8a976529defbe21942a11c9cEli Friedman 833ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse compound-statement. 834dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman if (!Tok.is(tok::l_brace)) { 835ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, diag::err_expected_lambda_body); 836dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman Actions.ActOnLambdaError(LambdaBeginLoc, getCurScope()); 837dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprError(); 838ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 839ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 840dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman StmtResult Stmt(ParseCompoundStatementBody()); 841dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman BodyScope.Exit(); 842dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 843deeab90783eb28d955add1062b616c030eb2b781Eli Friedman if (!Stmt.isInvalid()) 844deeab90783eb28d955add1062b616c030eb2b781Eli Friedman return Actions.ActOnLambdaExpr(LambdaBeginLoc, Stmt.take(), 845deeab90783eb28d955add1062b616c030eb2b781Eli Friedman getCurScope()); 846dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 847deeab90783eb28d955add1062b616c030eb2b781Eli Friedman Actions.ActOnLambdaError(LambdaBeginLoc, getCurScope()); 848deeab90783eb28d955add1062b616c030eb2b781Eli Friedman return ExprError(); 849ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 850ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 86060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXCasts() { 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 865eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie default: llvm_unreachable("Unknown C++ cast!"); 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 875ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Check for "<::" which is parsed as "[:". If found, fix token stream, 876ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // diagnose error, suggest fix, and recover parsing. 877ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Token Next = NextToken(); 878ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (Tok.is(tok::l_square) && Tok.getLength() == 2 && Next.is(tok::colon) && 879ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith AreTokensAdjacent(PP, Tok, Next)) 880ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith FixDigraph(*this, PP, Tok, Next, Kind, /*AtDigraph*/true); 881ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 88320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 88531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the common declaration-specifiers piece. 88631862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 88731862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 88831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 88931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the abstract-declarator, if present. 89031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 89131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 89231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8951ab3b96de160e4fbffec2a776e284a48a3bb543dChris Lattner if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) 89620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << "<"); 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8984a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SourceLocation LParenLoc, RParenLoc; 8994a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, CastName)) 90221e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 9035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 90460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result = ParseExpression(); 9051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 90621e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 9074a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 90931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (!Result.isInvalid() && !DeclaratorInfo.isInvalidType()) 91049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 91131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis LAngleBracketLoc, DeclaratorInfo, 912809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 9134a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getOpenLocation(), Result.take(), 9144a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 91620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 919c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 920c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 921c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 922c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 923c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 924c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 92560d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXTypeid() { 926c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 927c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 928c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 9294a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SourceLocation LParenLoc, RParenLoc; 9304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 931c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 932c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 9334a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, "typeid")) 93420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 9354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LParenLoc = T.getOpenLocation(); 936c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 93760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result; 938c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 939c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 940809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 941c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 942c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 9434a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 9444a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor RParenLoc = T.getCloseLocation(); 9454eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (Ty.isInvalid() || RParenLoc.isInvalid()) 94620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 947c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 948c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 949b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Ty.get().getAsOpaquePtr(), RParenLoc); 950c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 951e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // C++0x [expr.typeid]p3: 9521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // When typeid is applied to an expression other than an lvalue of a 9531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // polymorphic class type [...] The expression is an unevaluated 954e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // operand (Clause 5). 955e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor // 9561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // Note that we can't tell whether the expression is an lvalue of a 957ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // polymorphic class type until after we've parsed the expression; we 958ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // speculatively assume the subexpression is unevaluated, and fix it up 959ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman // later. 960ef331b783bb96a0f0e34afdb7ef46677dc4764cbEli Friedman EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); 961c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 962c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 963c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 9640e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 965c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SkipUntil(tok::r_paren); 966c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 9674a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 9684a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor RParenLoc = T.getCloseLocation(); 9694eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (RParenLoc.isInvalid()) 9704eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor return ExprError(); 971fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor 972c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 973effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl Result.release(), RParenLoc); 974c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 975c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 976c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 97720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Result); 978c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 979c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 98001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// ParseCXXUuidof - This handles the Microsoft C++ __uuidof expression. 98101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 98201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' expression ')' 98301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' type-id ')' 98401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 98501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois PichetExprResult Parser::ParseCXXUuidof() { 98601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet assert(Tok.is(tok::kw___uuidof) && "Not '__uuidof'!"); 98701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 98801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation OpLoc = ConsumeToken(); 9894a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 99001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 99101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // __uuidof expressions are always parenthesized. 9924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, "__uuidof")) 99301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 99401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 99501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet ExprResult Result; 99601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 99701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (isTypeIdInParens()) { 99801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet TypeResult Ty = ParseTypeName(); 99901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 100001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 10014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 100201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 100301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Ty.isInvalid()) 100401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 100501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 10064a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCXXUuidof(OpLoc, T.getOpenLocation(), /*isType=*/true, 10074a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Ty.get().getAsOpaquePtr(), 10084a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 100901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } else { 101001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); 101101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = ParseExpression(); 101201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 101301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 101401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Result.isInvalid()) 101501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SkipUntil(tok::r_paren); 101601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet else { 10174a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 101801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 10194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCXXUuidof(OpLoc, T.getOpenLocation(), 10204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor /*isType=*/false, 10214a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result.release(), T.getCloseLocation()); 102201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 102301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 102401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 102501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return move(Result); 102601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet} 102701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 1028d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \brief Parse a C++ pseudo-destructor expression after the base, 1029d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// . or -> operator, and nested-name-specifier have already been 1030d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// parsed. 1031d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 1032d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression: [C++ 5.2] 1033d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression . pseudo-destructor-name 1034d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression -> pseudo-destructor-name 1035d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 1036d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor-name: 1037d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] type-name :: ~type-name 1038d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier template simple-template-id :: 1039d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ~type-name 1040d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] ~type-name 1041d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 104260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 1043d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas GregorParser::ParseCXXPseudoDestructor(ExprArg Base, SourceLocation OpLoc, 1044d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor tok::TokenKind OpKind, 1045d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CXXScopeSpec &SS, 1046b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType) { 1047d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // We're parsing either a pseudo-destructor-name or a dependent 1048d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // member access that has the same form as a 1049d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // pseudo-destructor-name. We parse both in the same way and let 1050d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // the action model sort them out. 1051d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // 1052d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Note that the ::[opt] nested-name-specifier[opt] has already 1053d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been parsed, and if there was a simple-template-id, it has 1054d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been coalesced into a template-id annotation token. 1055d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId FirstTypeName; 1056d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation CCLoc; 1057d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::identifier)) { 1058d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 1059d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 1060d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 1061d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 1062d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else if (Tok.is(tok::annot_template_id)) { 1063e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // FIXME: retrieve TemplateKWLoc from template-id annotation and 1064e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // store it in the pseudo-dtor node (to be used when instantiating it). 1065d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setTemplateId( 1066d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor (TemplateIdAnnotation *)Tok.getAnnotationValue()); 1067d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 1068d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 1069d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 1070d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else { 1071d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(0, SourceLocation()); 1072d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 1073d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1074d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the tilde. 1075d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::tilde) && "ParseOptionalCXXScopeSpecifier fail"); 1076d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 107791ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie 107891ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie if (Tok.is(tok::kw_decltype) && !FirstTypeName.isValid() && SS.isEmpty()) { 107991ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie DeclSpec DS(AttrFactory); 108085c60db2131c6d210d4777c3d50bdaf0e69bb8bfBenjamin Kramer ParseDecltypeSpecifier(DS); 108191ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie if (DS.getTypeSpecType() == TST_error) 108291ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie return ExprError(); 108391ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, OpLoc, 108491ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie OpKind, TildeLoc, DS, 108591ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie Tok.is(tok::l_paren)); 108691ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie } 108791ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie 1088d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (!Tok.is(tok::identifier)) { 1089d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 1090d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1091d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 1092d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1093d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the second type. 1094d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId SecondTypeName; 1095d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor IdentifierInfo *Name = Tok.getIdentifierInfo(); 1096d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation NameLoc = ConsumeToken(); 1097d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SecondTypeName.setIdentifier(Name, NameLoc); 1098d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1099d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // If there is a '<', the second type name is a template-id. Parse 1100d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // it as such. 1101d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::less) && 1102e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ParseUnqualifiedIdTemplateId(SS, SourceLocation(), 1103e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Name, NameLoc, 1104e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara false, ObjectType, SecondTypeName, 1105e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AssumeTemplateName=*/true)) 1106d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1107d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 11089ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, 11099ae2f076ca5ab1feb3ba95629099ec2319833701John McCall OpLoc, OpKind, 1110d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SS, FirstTypeName, CCLoc, 1111d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor TildeLoc, SecondTypeName, 1112d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Tok.is(tok::l_paren)); 1113d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor} 1114d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 11175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 11195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 112060d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXBoolLiteral() { 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 1122f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 112450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 112550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 112650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 112750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 112850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 112960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseThrowExpression() { 113050dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 113150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 113220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 11332a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 11342a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 11352a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 11362a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 11372a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 11382a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 11392a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 11402a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 11412a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 11422a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 1143bca01b46850f867b2f4137f25c882022b58f8471Douglas Gregor return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, 0); 114450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 11452a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 114660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Expr(ParseAssignmentExpression()); 114720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl if (Expr.isInvalid()) return move(Expr); 1148bca01b46850f867b2f4137f25c882022b58f8471Douglas Gregor return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, Expr.take()); 11492a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 115050dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 11514cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 11524cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 11534cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 11544cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 11554cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 11564cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 115760d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXThis() { 11584cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 11594cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 1160f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 11614cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 1162987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1163987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 1164987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 1165987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 1166987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 1167dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// See [C++ 5.2.3]. 1168987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1169987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 1170dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// simple-type-specifier '(' expression-list[opt] ')' 1171dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] simple-type-specifier braced-init-list 1172dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// typename-specifier '(' expression-list[opt] ')' 1173dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] typename-specifier braced-init-list 1174987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 117560d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 117620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 1177987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 1178b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = Actions.ActOnTypeName(getCurScope(), DeclaratorInfo).get(); 1179987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1180dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Tok.is(tok::l_paren) || 1181dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl (getLang().CPlusPlus0x && Tok.is(tok::l_brace))) 1182dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl && "Expected '(' or '{'!"); 1183bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor 1184dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.is(tok::l_brace)) { 11856dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl ExprResult Init = ParseBraceInitializer(); 11866dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl if (Init.isInvalid()) 11876dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl return Init; 11886dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl Expr *InitList = Init.take(); 11896dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl return Actions.ActOnCXXTypeConstructExpr(TypeRep, SourceLocation(), 11906dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl MultiExprArg(&InitList, 1), 11916dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl SourceLocation()); 1192dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } else { 1193dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl GreaterThanIsOperatorScope G(GreaterThanIsOperator, true); 1194dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 11954a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 11964a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 1197dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 1198dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl ExprVector Exprs(Actions); 1199dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl CommaLocsTy CommaLocs; 1200dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 1201dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.isNot(tok::r_paren)) { 1202dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (ParseExpressionList(Exprs, CommaLocs)) { 1203dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl SkipUntil(tok::r_paren); 1204dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1205dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1206987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1207987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1208dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // Match the ')'. 12094a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1210987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1211dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // TypeRep could be null, if it references an invalid typedef. 1212dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (!TypeRep) 1213dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1214ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl 1215dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 1216dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl "Unexpected number of commas!"); 12174a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnCXXTypeConstructExpr(TypeRep, T.getOpenLocation(), 12184a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor move_arg(Exprs), 12194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 1220dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1221987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 1222987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 122399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// ParseCXXCondition - if/switch/while condition expression. 122471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 122571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 122671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 122771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 122871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 122971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 123071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 123199e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \param ExprResult if the condition was parsed as an expression, the 123299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// parsed expression. 123399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 123499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \param DeclResult if the condition was parsed as a declaration, the 123599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// parsed declaration. 123699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 1237586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param Loc The location of the start of the statement that requires this 1238586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// condition, e.g., the "for" in a for loop. 1239586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 1240586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param ConvertToBoolean Whether the condition expression should be 1241586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// converted to a boolean value. 1242586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 124399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \returns true if there was a parsing, false otherwise. 124460d7b3a319d84d688752be3870615ac0f111fb16John McCallbool Parser::ParseCXXCondition(ExprResult &ExprOut, 124560d7b3a319d84d688752be3870615ac0f111fb16John McCall Decl *&DeclOut, 1246586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor SourceLocation Loc, 1247586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor bool ConvertToBoolean) { 124801dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor if (Tok.is(tok::code_completion)) { 1249f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Condition); 12507d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 12517d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return true; 125201dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor } 125301dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor 125499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor if (!isCXXConditionDeclaration()) { 1255586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // Parse the expression. 125660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ParseExpression(); // expression 125760d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = 0; 125860d7b3a319d84d688752be3870615ac0f111fb16John McCall if (ExprOut.isInvalid()) 1259586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor return true; 1260586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 1261586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // If required, convert to a boolean value. 1262586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor if (ConvertToBoolean) 126360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut 126460d7b3a319d84d688752be3870615ac0f111fb16John McCall = Actions.ActOnBooleanCondition(getCurScope(), Loc, ExprOut.get()); 126560d7b3a319d84d688752be3870615ac0f111fb16John McCall return ExprOut.isInvalid(); 126699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 126771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 126871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 12690b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 127071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 127171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 127271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 127371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 127471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 127571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 127671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 127771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 1278ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 127960d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult AsmLabel(ParseSimpleAsm(&Loc)); 12800e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 128171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 128299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return true; 128371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 1284effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl DeclaratorInfo.setAsmLabel(AsmLabel.release()); 1285ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 128671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 128771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 128871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 12897f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(DeclaratorInfo); 129071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 129199e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // Type-check the declaration itself. 129260d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclResult Dcl = Actions.ActOnCXXConditionDeclaration(getCurScope(), 12937f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DeclaratorInfo); 129460d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = Dcl.get(); 129560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ExprError(); 1296a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 129771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 1298d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu // If a '==' or '+=' is found, suggest a fixit to '='. 1299fcaf27e185695bdf755e202aeba9632e0a8ef3c6Richard Trieu if (isTokenEqualOrEqualTypo()) { 1300dec0984fce504a39a7f085774fb67cfd9957be58Jeffrey Yasskin ConsumeToken(); 130160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult AssignExpr(ParseAssignmentExpression()); 130299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor if (!AssignExpr.isInvalid()) 130334b41d939a1328f484511c6002ba2456db879a29Richard Smith Actions.AddInitializerToDecl(DeclOut, AssignExpr.take(), false, 130434b41d939a1328f484511c6002ba2456db879a29Richard Smith DS.getTypeSpecType() == DeclSpec::TST_auto); 130599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } else { 130699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // FIXME: C++0x allows a braced-init-list 130799e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor Diag(Tok, diag::err_expected_equal_after_declarator); 130899e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 130999e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor 1310586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // FIXME: Build a reference to this declaration? Convert it to bool? 1311586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // (This is currently handled by Sema). 1312483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith 1313483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith Actions.FinalizeDeclaration(DeclOut); 1314586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 131599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return false; 131671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 131771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 13186aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// \brief Determine whether the current token starts a C++ 13196aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// simple-type-specifier. 13206aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregorbool Parser::isCXXSimpleTypeSpecifier() const { 13216aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor switch (Tok.getKind()) { 13226aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::annot_typename: 13236aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_short: 13246aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_long: 1325338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet case tok::kw___int64: 13266aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_signed: 13276aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_unsigned: 13286aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_void: 13296aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_char: 13306aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_int: 1331aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case tok::kw_half: 13326aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_float: 13336aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_double: 13346aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_wchar_t: 13356aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_char16_t: 13366aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_char32_t: 13376aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_bool: 1338d9d75e57dfa22366c0379c92beac1db82db34e9aDouglas Gregor case tok::kw_decltype: 13396aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor case tok::kw_typeof: 1340db5d44b775c60166074acd184ca9f1981c10c2a7Sean Hunt case tok::kw___underlying_type: 13416aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor return true; 13426aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 13436aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor default: 13446aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor break; 13456aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor } 13466aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 13476aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor return false; 13486aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor} 13496aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 1350987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 1351987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 1352987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 1353987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1354987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 1355eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 1356987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 1357987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 1358987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 1359987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 1360987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 1361987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 1362987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 1363987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 1364987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 1365987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 1366987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 1367987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 1368987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 1369987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 1370987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1371987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 1372987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 1373987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 1374987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 1375987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1376987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 1377987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 1378987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 1379fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 1380987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 13811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1382987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 138355a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 138455a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 1385b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Annotation token should already be formed!"); 13861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: 1387b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Not a simple-type-specifier token!"); 138855a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 1389987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 1390b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 13916952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (getTypeAnnotation(Tok)) 13926952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, DiagID, 13936952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor getTypeAnnotation(Tok)); 13946952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor else 13956952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecError(); 13969bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 13979bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 13989bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ConsumeToken(); 13999bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 14009bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C supports syntax of the form 'id<proto1,proto2>' where 'id' 14019bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // is a specific typedef and 'itf<proto1,proto2>' where 'itf' is an 14029bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C interface. If we don't have Objective-C or a '<', this is 14039bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // just a normal reference to a typedef name. 14049bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor if (Tok.is(tok::less) && getLang().ObjC1) 14059bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ParseObjCProtocolQualifiers(DS); 14069bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 14079bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.Finish(Diags, PP); 14089bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor return; 1409987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 14101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1411987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 1412987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 1413fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec, DiagID); 1414987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1415987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 1416fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec, DiagID); 1417338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet break; 1418338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet case tok::kw___int64: 1419338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet DS.SetTypeSpecWidth(DeclSpec::TSW_longlong, Loc, PrevSpec, DiagID); 1420987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1421987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 1422fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec, DiagID); 1423987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1424987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 1425fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec, DiagID); 1426987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1427987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 1428fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec, DiagID); 1429987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1430987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 1431fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec, DiagID); 1432987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1433987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 1434fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec, DiagID); 1435987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1436aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case tok::kw_half: 1437aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov DS.SetTypeSpecType(DeclSpec::TST_half, Loc, PrevSpec, DiagID); 1438aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov break; 1439987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 1440fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec, DiagID); 1441987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1442987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 1443fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec, DiagID); 1444987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1445987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 1446fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec, DiagID); 1447987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1448f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char16_t: 1449fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char16, Loc, PrevSpec, DiagID); 1450f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1451f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char32_t: 1452fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_char32, Loc, PrevSpec, DiagID); 1453f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1454987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 1455fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec, DiagID); 1456987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 14575e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie case tok::annot_decltype: 14585e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie case tok::kw_decltype: 14595e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie DS.SetRangeEnd(ParseDecltypeSpecifier(DS)); 14605e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie return DS.Finish(Diags, PP); 14611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1462987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 1463987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 1464987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 14659b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 1466987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 1467987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1468b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 1469eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 1470eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 1471eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 1472987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 14739b3064b55f3c858923734e8b1c9831777fc22554Douglas Gregor DS.Finish(Diags, PP); 1474987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 14751cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 14762f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 14772f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 14782f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 14792f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 14802f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 14812f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 14822f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 14832f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 14842f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 14852f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 14862f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 14872f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 14882f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DS.SetRangeStart(Tok.getLocation()); 14892f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor const char *PrevSpec = 0; 1490fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 1491fec54013fcd0eb72642741584ca04c1bc292bef8John McCall bool isInvalid = 0; 14922f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 14932f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse one or more of the type specifiers. 1494d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl if (!ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec, DiagID, 1495d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl ParsedTemplateInfo(), /*SuppressDeclarations*/true)) { 14969fa8e569407e02148888136609431a3fe083096dNick Lewycky Diag(Tok, diag::err_expected_type); 14972f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return true; 14982f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor } 14991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1500d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl while (ParseOptionalTypeSpecifier(DS, isInvalid, PrevSpec, DiagID, 1501d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl ParsedTemplateInfo(), /*SuppressDeclarations*/true)) 1502d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl {} 15032f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 1504396a9f235e160093b5f803f7a6a18fad7b68bdbeDouglas Gregor DS.Finish(Diags, PP); 15052f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 15062f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 15072f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 15083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \brief Finish parsing a C++ unqualified-id that is a template-id of 15093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// some form. 15103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 15113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// This routine is invoked when a '<' is encountered after an identifier or 15123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id is parsed by \c ParseUnqualifiedId() to determine 15133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// whether the unqualified-id is actually a template-id. This routine will 15143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// then parse the template arguments and form the appropriate template-id to 15153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// return to the caller. 15163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 15173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param SS the nested-name-specifier that precedes this template-id, if 15183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// we're actually parsing a qualified-id. 15193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 15203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Name for constructor and destructor names, this is the actual 15213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// identifier that may be a template-name. 15223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 15233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param NameLoc the location of the class-name in a constructor or 15243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// destructor. 15253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 15263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we're entering the scope of the 15273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 15283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 152946df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 153046df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 153146df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 15323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Id as input, describes the template-name or operator-function-id 15333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// that precedes the '<'. If template arguments were parsed successfully, 15343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// will be updated with the template-id. 15353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1536d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param AssumeTemplateId When true, this routine will assume that the name 1537d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// refers to a template without performing name lookup to verify. 1538d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 15393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if a parse error occurred, false otherwise. 15403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedIdTemplateId(CXXScopeSpec &SS, 1541e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 15423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Name, 15433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation NameLoc, 15443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool EnteringContext, 1545b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1546d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId &Id, 1547e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool AssumeTemplateId) { 15480278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor assert((AssumeTemplateId || Tok.is(tok::less)) && 15490278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor "Expected '<' to finish parsing a template-id"); 15503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateTy Template; 15523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateNameKind TNK = TNK_Non_template; 15533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (Id.getKind()) { 15543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 1555014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 1556e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 1557d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (AssumeTemplateId) { 1558e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), SS, TemplateKWLoc, 1559d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Id, ObjectType, EnteringContext, 1560d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Template); 1561d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 1562d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 15631fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } else { 15641fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 15657c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, 15667c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateKWLoc.isValid(), Id, 15677c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara ObjectType, EnteringContext, Template, 15681fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 15691fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor 15701fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (TNK == TNK_Non_template && MemberOfUnknownSpecialization && 15711fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor ObjectType && IsTemplateArgumentList()) { 15721fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // We have something like t->getAs<T>(), where getAs is a 15731fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // member of an unknown specialization. However, this will only 15741fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 15751fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // before 'getAs' and treat this as a dependent template name. 15761fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor std::string Name; 15771fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) 15781fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = Id.Identifier->getName(); 15791fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else { 15801fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = "operator "; 15811fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_OperatorFunctionId) 15821fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += getOperatorSpelling(Id.OperatorFunctionId.Operator); 15831fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else 15841fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += Id.Identifier->getName(); 15851fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 15861fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Diag(Id.StartLocation, diag::err_missing_dependent_template_keyword) 15871fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << Name 15881fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << FixItHint::CreateInsertion(Id.StartLocation, "template "); 1589e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), 1590e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, Id, 1591e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 1592e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template); 1593d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 15941fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor return true; 15951fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 15961fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 15973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 15983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1599014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_ConstructorName: { 1600014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 16011fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1602014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 16037c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 16047c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 16051fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 16061fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 16073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1608014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 16093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1610014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_DestructorName: { 1611014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 16121fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1613014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 16142d1c21414199a7452f122598189363a3922605b1Douglas Gregor if (ObjectType) { 1615e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), 1616e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, TemplateName, 1617e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 1618e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template); 1619d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 16202d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 16212d1c21414199a7452f122598189363a3922605b1Douglas Gregor } else { 16227c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 16237c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 16241fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 16251fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 16262d1c21414199a7452f122598189363a3922605b1Douglas Gregor 1627b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (TNK == TNK_Non_template && !Id.DestructorName.get()) { 1628124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(NameLoc, diag::err_destructor_template_id) 1629124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor << Name << SS.getRange(); 16302d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 16312d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 16322d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 16333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1634014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 16353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 16363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor default: 16373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 16383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 16393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 16403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (TNK == TNK_Non_template) 16413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 16423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 16433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the enclosed template argument list. 16443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation LAngleLoc, RAngleLoc; 16453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgList TemplateArgs; 16460278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (Tok.is(tok::less) && 16470278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor ParseTemplateIdAfterTemplateName(Template, Id.StartLocation, 1648059101f922de6eb765601459925f4c8914420b23Douglas Gregor SS, true, LAngleLoc, 16493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgs, 16503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor RAngleLoc)) 16513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 16523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 16533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier || 1654e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_OperatorFunctionId || 1655e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_LiteralOperatorId) { 16563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Form a parsed representation of the template-id to be stored in the 16573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // UnqualifiedId. 16583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateIdAnnotation *TemplateId 16593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor = TemplateIdAnnotation::Allocate(TemplateArgs.size()); 16603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 16613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) { 16623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Name = Id.Identifier; 1663014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = OO_None; 16643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 16653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 1666014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Name = 0; 1667014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = Id.OperatorFunctionId.Operator; 1668014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 16693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 16703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1671059101f922de6eb765601459925f4c8914420b23Douglas Gregor TemplateId->SS = SS; 16722b5289b6fd7e3d9899868410a498c081c9595662John McCall TemplateId->Template = Template; 16733f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Kind = TNK; 16743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->LAngleLoc = LAngleLoc; 16753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->RAngleLoc = RAngleLoc; 1676314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor ParsedTemplateArgument *Args = TemplateId->getTemplateArgs(); 16773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor for (unsigned Arg = 0, ArgEnd = TemplateArgs.size(); 1678314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor Arg != ArgEnd; ++Arg) 16793f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Args[Arg] = TemplateArgs[Arg]; 16803f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 16813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setTemplateId(TemplateId); 16823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 16833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 16843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 16853f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Bundle the template arguments together. 16863f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor ASTTemplateArgsPtr TemplateArgsPtr(Actions, TemplateArgs.data(), 16873f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgs.size()); 1688fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara 16893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Constructor and destructor names. 1690f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Type 169155d23c925b058be29b792008ddb7d68f6c4fa9a0Abramo Bagnara = Actions.ActOnTemplateIdType(SS, TemplateKWLoc, 169255d23c925b058be29b792008ddb7d68f6c4fa9a0Abramo Bagnara Template, NameLoc, 1693fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara LAngleLoc, TemplateArgsPtr, RAngleLoc, 1694fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true); 16953f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Type.isInvalid()) 16963f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 16973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 16983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_ConstructorName) 16993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setConstructorName(Type.get(), NameLoc, RAngleLoc); 17003f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor else 17013f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setDestructorName(Id.StartLocation, Type.get(), RAngleLoc); 17023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 17033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 17043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 17053f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1706ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse an operator-function-id or conversion-function-id as part 1707ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// of a C++ unqualified-id. 17083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1709ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// This routine is responsible only for parsing the operator-function-id or 1710ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id; it does not handle template arguments in any way. 17113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1712ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 17133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id: [C++ 13.5] 17143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 'operator' operator 17153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1716ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator: one of 17173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// new delete new[] delete[] 17183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// + - * / % ^ & | ~ 17193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ! = < > += -= *= /= %= 17203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ^= &= |= << >> >>= <<= == != 17213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// <= >= && || ++ -- , ->* -> 17223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// () [] 17233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-function-id: [C++ 12.3.2] 17253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator conversion-type-id 17263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-type-id: 17283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// type-specifier-seq conversion-declarator[opt] 17293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-declarator: 17313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ptr-operator conversion-declarator[opt] 17323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \endcode 17333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param The nested-name-specifier that preceded this unqualified-id. If 17353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 17363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 17373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we are entering the scope of the 17383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 17393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1740ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 1741ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// expression, the type of the base object whose member is being accessed. 1742ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1743ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 1744ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1745ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \returns true if parsing fails, false otherwise. 1746ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregorbool Parser::ParseUnqualifiedIdOperator(CXXScopeSpec &SS, bool EnteringContext, 1747b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1748ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId &Result) { 1749ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 1750ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1751ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'operator' keyword. 1752ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation KeywordLoc = ConsumeToken(); 1753ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1754ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Determine what kind of operator name we have. 1755ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor unsigned SymbolIdx = 0; 1756ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation SymbolLocations[3]; 1757ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Op = OO_None; 1758ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor switch (Tok.getKind()) { 1759ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_new: 1760ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_delete: { 1761ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor bool isNew = Tok.getKind() == tok::kw_new; 1762ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'new' or 'delete'. 1763ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); 1764ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Tok.is(tok::l_square)) { 17654a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '[' and ']'. 17664a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 17674a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 17684a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 17694a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 1770ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1771ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 17724a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 17734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 1774ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_Array_New : OO_Array_Delete; 1775ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 1776ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_New : OO_Delete; 1777ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1778ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1779ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1780ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1781ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 1782ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::Token: \ 1783ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); \ 1784ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_##Name; \ 1785ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1786ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 1787ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#include "clang/Basic/OperatorKinds.def" 1788ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1789ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_paren: { 17904a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '(' and ')'. 17914a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 17924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 17934a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 17944a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 1795ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1796ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 17974a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 17984a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 1799ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Call; 1800ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1801ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1802ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1803ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_square: { 18044a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '[' and ']'. 18054a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 18064a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 18074a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 18084a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 1809ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1810ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 18114a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 18124a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 1813ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Subscript; 1814ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1815ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1816ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1817ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::code_completion: { 1818ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Code completion for the operator name. 181923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOperatorName(getCurScope()); 18207d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 1821ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Don't try to parse any further. 1822ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1823ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1824ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1825ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor default: 1826ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 1827ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 1828ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1829ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Op != OO_None) { 1830ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // We have parsed an operator-function-id. 1831ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setOperatorFunctionId(KeywordLoc, Op, SymbolLocations); 1832ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 1833ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 18340486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 18350486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // Parse a literal-operator-id. 18360486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // 18370486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // literal-operator-id: [C++0x 13.5.8] 18380486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // operator "" identifier 18390486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 18400486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt if (getLang().CPlusPlus0x && Tok.is(tok::string_literal)) { 18417fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok.getLocation(), diag::warn_cxx98_compat_literal_operator); 18420486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt if (Tok.getLength() != 2) 18430486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Diag(Tok.getLocation(), diag::err_operator_string_not_empty); 18440486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt ConsumeStringToken(); 18450486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 18460486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt if (Tok.isNot(tok::identifier)) { 18470486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Diag(Tok.getLocation(), diag::err_expected_ident); 18480486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt return true; 18490486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 18500486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 18510486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt IdentifierInfo *II = Tok.getIdentifierInfo(); 18520486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt Result.setLiteralOperatorId(II, KeywordLoc, ConsumeToken()); 18533e518bda00d710754ca077cf9be8dd821e16a854Sean Hunt return false; 18540486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 1855ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1856ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse a conversion-function-id. 1857ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1858ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-function-id: [C++ 12.3.2] 1859ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator conversion-type-id 1860ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1861ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-type-id: 1862ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // type-specifier-seq conversion-declarator[opt] 1863ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 1864ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-declarator: 1865ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operator conversion-declarator[opt] 1866ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1867ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the type-specifier-seq. 18680b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 1869f6e6fc801c700c7b8ac202ddbe550d9843a816fcDouglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) // FIXME: ObjectType? 1870ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1871ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1872ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 1873ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operators. 1874ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 1875ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ParseDeclaratorInternal(D, /*DirectDeclParser=*/0); 1876ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1877ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Finish up the type. 1878f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Ty = Actions.ActOnTypeName(getCurScope(), D); 1879ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Ty.isInvalid()) 1880ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 1881ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1882ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Note that this is a conversion-function-id. 1883ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setConversionFunctionId(KeywordLoc, Ty.get(), 1884ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor D.getSourceRange().getEnd()); 1885ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 1886ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 1887ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 1888ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse a C++ unqualified-id (or a C identifier), which describes the 1889ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// name of an entity. 1890ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1891ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 1892ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// unqualified-id: [C++ expr.prim.general] 1893ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// identifier 1894ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator-function-id 1895ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id 1896ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// [C++0x] literal-operator-id [TODO] 1897ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// ~ class-name 1898ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template-id 1899ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1900ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \endcode 1901ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1902ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param The nested-name-specifier that preceded this unqualified-id. If 1903ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 1904ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 1905ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param EnteringContext whether we are entering the scope of the 1906ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// nested-name-specifier. 1907ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 19083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowDestructorName whether we allow parsing of a destructor name. 19093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 19103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowConstructorName whether we allow parsing a constructor name. 19113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 191246df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 191346df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 191446df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 19153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 19163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 19173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if parsing fails, false otherwise. 19183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedId(CXXScopeSpec &SS, bool EnteringContext, 19193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowDestructorName, 19203f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowConstructorName, 1921b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1922e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation& TemplateKWLoc, 19233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor UnqualifiedId &Result) { 19240278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 19250278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // Handle 'A::template B'. This is for template-ids which have not 19260278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // already been annotated by ParseOptionalCXXScopeSpecifier(). 19270278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor bool TemplateSpecified = false; 19280278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (getLang().CPlusPlus && Tok.is(tok::kw_template) && 19290278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (ObjectType || SS.isSet())) { 19300278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified = true; 19310278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateKWLoc = ConsumeToken(); 19320278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor } 19330278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 19343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 19353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // identifier 19363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (when it hasn't already been annotated) 19373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::identifier)) { 19383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Consume the identifier. 19393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Id = Tok.getIdentifierInfo(); 19403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation IdLoc = ConsumeToken(); 19413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1942b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor if (!getLang().CPlusPlus) { 1943b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // If we're not in C++, only identifiers matter. Record the 1944b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // identifier and return. 1945b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor Result.setIdentifier(Id, IdLoc); 1946b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor return false; 1947b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor } 1948b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor 19493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (AllowConstructorName && 195023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*Id, getCurScope(), &SS)) { 19513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed a constructor name. 1952fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType Ty = Actions.getTypeName(*Id, IdLoc, getCurScope(), 1953fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara &SS, false, false, 1954fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType(), 1955fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true, 1956fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*NonTrivialTypeSourceInfo=*/true); 1957fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara Result.setConstructorName(Ty, IdLoc, IdLoc); 19583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 19593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed an identifier. 19603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setIdentifier(Id, IdLoc); 19613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 19623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // If the next token is a '<', we may have a template. 19640278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) 1965e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, Id, IdLoc, 1966e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 1967e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 19683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 19703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 19713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19723f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 19733f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (already parsed and annotated) 19743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::annot_template_id)) { 197525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 19760efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 19770efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // If the template-name names the current class, then this is a constructor 19780efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (AllowConstructorName && TemplateId->Name && 197923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*TemplateId->Name, getCurScope(), &SS)) { 19800efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (SS.isSet()) { 19810efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // C++ [class.qual]p2 specifies that a qualified template-name 19820efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // is taken as the constructor name where a constructor can be 19830efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // declared. Thus, the template arguments are extraneous, so 19840efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // complain about them and remove them entirely. 19850efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Diag(TemplateId->TemplateNameLoc, 19860efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor diag::err_out_of_line_constructor_template_id) 19870efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor << TemplateId->Name 1988849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval( 19890efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor SourceRange(TemplateId->LAngleLoc, TemplateId->RAngleLoc)); 1990fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType Ty = Actions.getTypeName(*TemplateId->Name, 1991fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara TemplateId->TemplateNameLoc, 1992fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara getCurScope(), 1993fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara &SS, false, false, 1994fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType(), 1995fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true, 1996fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*NontrivialTypeSourceInfo=*/true); 1997fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara Result.setConstructorName(Ty, TemplateId->TemplateNameLoc, 19980efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->RAngleLoc); 19990efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 20000efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 20010efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 20020efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 20030efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setConstructorTemplateId(TemplateId); 20040efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 20050efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 20060efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 20070efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 20083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have already parsed a template-id; consume the annotation token as 20093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // our unqualified-id. 20100efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setTemplateId(TemplateId); 2011e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc = TemplateId->TemplateKWLoc; 20123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor ConsumeToken(); 20133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 20143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 20153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 20173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // operator-function-id 20183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // conversion-function-id 20193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::kw_operator)) { 2020ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, Result)) 20213f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 20223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 2023e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // If we have an operator-function-id or a literal-operator-id and the next 2024e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // token is a '<', we may have a 2025ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2026ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // template-id: 2027ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator-function-id < template-argument-list[opt] > 2028e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if ((Result.getKind() == UnqualifiedId::IK_OperatorFunctionId || 2029e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Result.getKind() == UnqualifiedId::IK_LiteralOperatorId) && 20300278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (TemplateSpecified || Tok.is(tok::less))) 2031e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, 2032e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 0, SourceLocation(), 2033e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2034e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 20353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 20373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 20383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 2039b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor if (getLang().CPlusPlus && 2040b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor (AllowDestructorName || SS.isSet()) && Tok.is(tok::tilde)) { 20413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // C++ [expr.unary.op]p10: 20423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // There is an ambiguity in the unary-expression ~X(), where X is a 20433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // class-name. The ambiguity is resolved in favor of treating ~ as a 20443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unary complement rather than treating ~X as referring to a destructor. 20453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the '~'. 20473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 204853a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie 204953a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie if (SS.isEmpty() && Tok.is(tok::kw_decltype)) { 205053a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie DeclSpec DS(AttrFactory); 205153a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie SourceLocation EndLoc = ParseDecltypeSpecifier(DS); 205253a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie if (ParsedType Type = Actions.getDestructorType(DS, ObjectType)) { 205353a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie Result.setDestructorName(TildeLoc, Type, EndLoc); 205453a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie return false; 205553a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie } 205653a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie return true; 205753a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie } 20583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name. 20603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.isNot(tok::identifier)) { 2061124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 20623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 20633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 20643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name (or template-name in a simple-template-id). 20663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *ClassName = Tok.getIdentifierInfo(); 20673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation ClassNameLoc = ConsumeToken(); 20683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20690278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) { 2070b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Result.setDestructorName(TildeLoc, ParsedType(), ClassNameLoc); 2071e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, 2072e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ClassName, ClassNameLoc, 2073e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2074e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 20752d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 20762d1c21414199a7452f122598189363a3922605b1Douglas Gregor 20773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Note that this is a destructor name. 2078b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType Ty = Actions.getDestructorName(TildeLoc, *ClassName, 2079b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ClassNameLoc, getCurScope(), 2080b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall SS, ObjectType, 2081b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext); 2082124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor if (!Ty) 20833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 2084124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor 20853f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setDestructorName(TildeLoc, Ty, ClassNameLoc); 20863f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 20873f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 20883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20892d1c21414199a7452f122598189363a3922605b1Douglas Gregor Diag(Tok, diag::err_expected_unqualified_id) 20902d1c21414199a7452f122598189363a3922605b1Douglas Gregor << getLang().CPlusPlus; 20913f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 20923f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 20933f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 20954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 20961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 209759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 209859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 209959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 21004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 21014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 21024c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 21034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 21044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 21054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 21064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 21074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 21084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 21094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 2110cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 2111cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 2112893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor/// [GNU] attributes type-specifier-seq new-declarator[opt] 2113cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 2114cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 2115cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 2116cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 2117cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 21184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 21194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 2120dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] braced-init-list 21214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 212260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 212359232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 212459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 212559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 21264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 21284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 21294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2130a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl ExprVector PlacementArgs(Actions); 21314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 21324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21334bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor SourceRange TypeIdParens; 21340b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 21350b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::CXXNewContext); 21364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 21374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 21384a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 21394a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 21404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor PlacementLParen = T.getOpenLocation(); 2141cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 2142cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 214320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2144cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 21454c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21464a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 21474a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor PlacementRParen = T.getCloseLocation(); 2148cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 2149cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 215020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2151cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 21524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2153cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 21544c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 21554a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor TypeIdParens = T.getRange(); 21564c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 21574c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 21584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 21594c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 21604a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 21614a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 2162893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2163cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 2164ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2165cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 21664a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 21674a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor TypeIdParens = T.getRange(); 21684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2169893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2170cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2171cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2172ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2173ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2174cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2175cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2176ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 21774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 21784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 21794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2180cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 2181cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 2182893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2183cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2184cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2185ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2186ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2187cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2188cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2189ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 21904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 2191eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 2192cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 219320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2194cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 21954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21962aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl ExprResult Initializer; 21974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 21984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 21992aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 22002aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl ExprVector ConstructorArgs(Actions); 22014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 22024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 22034a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor ConstructorLParen = T.getOpenLocation(); 22044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 22054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 2206cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 2207cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 220820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2209cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 22104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 22114a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 22124a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor ConstructorRParen = T.getCloseLocation(); 2213cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 2214cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl SkipUntil(tok::semi, /*StopAtSemi=*/true, /*DontConsume=*/true); 221520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2216cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 22172aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl Initializer = Actions.ActOnParenListExpr(ConstructorLParen, 22182aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl ConstructorRParen, 22192aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl move_arg(ConstructorArgs)); 222029e3a31b7cbd9f9cdf2cc857a3a805871b6f3f62Richard Smith } else if (Tok.is(tok::l_brace) && getLang().CPlusPlus0x) { 22217fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok.getLocation(), 22227fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_generalized_initializer_lists); 22232aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl Initializer = ParseBraceInitializer(); 22244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 22252aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl if (Initializer.isInvalid()) 22262aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl return Initializer; 22274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2228f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 2229f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl move_arg(PlacementArgs), PlacementRParen, 22302aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl TypeIdParens, DeclaratorInfo, Initializer.take()); 22314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 22324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 22334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 22344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 22354c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 22364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 22374c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 22384c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 22394c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 224059232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 22414c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 22424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 22434c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 22444a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 22454a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 22464a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 224760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Size(first ? ParseExpression() 22482f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 22490e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 22504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 22514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SkipUntil(tok::r_square); 22524c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 22534c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 22544c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 22554c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 22564a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 22570b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall 22580b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall ParsedAttributes attrs(AttrFactory); 22590b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall D.AddTypeInfo(DeclaratorChunk::getArray(0, 22607f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall /*static=*/false, /*star=*/false, 22614a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Size.release(), 22624a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getOpenLocation(), 22634a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()), 22644a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor attrs, T.getCloseLocation()); 22654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 22664a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 22674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 22684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 22694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 22704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 22714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 22724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 22734c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 22744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 22754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 22764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 22774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 22784c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 22794c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 22804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 2281ca0408fb49c1370430672acf2d770b7151cf71deJohn McCallbool Parser::ParseExpressionListOrTypeId( 22825f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVectorImpl<Expr*> &PlacementArgs, 228359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 22844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 22854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 2286cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 2287ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 2288cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 2289eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 22904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 22914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 22924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 22934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 22944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 22954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 22964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 22974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 22984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 22994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 23004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 230159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 230259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 230359232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 230459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 230559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 23064c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 23074c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 23084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 230960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 231059232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 231159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 231259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 23134c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 23144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 23154c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 23164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_square)) { 23174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 23184a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 23194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 23204a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 23214a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 23224a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 232320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 23244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 23254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 232660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Operand(ParseCastExpression(false)); 23270e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 232820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return move(Operand); 23294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 23309ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, Operand.take()); 23314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 233264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 23331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpstatic UnaryTypeTrait UnaryTypeTraitFromTokKind(tok::TokenKind kind) { 233464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl switch(kind) { 2335b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie default: llvm_unreachable("Not a known unary type trait."); 233664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_assign: return UTT_HasNothrowAssign; 233764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_nothrow_constructor: return UTT_HasNothrowConstructor; 233820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___has_nothrow_copy: return UTT_HasNothrowCopy; 233964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_assign: return UTT_HasTrivialAssign; 2340023df37c27ee8035664fb62f206ca58f4e2a169dSean Hunt case tok::kw___has_trivial_constructor: 2341023df37c27ee8035664fb62f206ca58f4e2a169dSean Hunt return UTT_HasTrivialDefaultConstructor; 234220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___has_trivial_copy: return UTT_HasTrivialCopy; 234364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_trivial_destructor: return UTT_HasTrivialDestructor; 234464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___has_virtual_destructor: return UTT_HasVirtualDestructor; 234564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_abstract: return UTT_IsAbstract; 234620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_arithmetic: return UTT_IsArithmetic; 234720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_array: return UTT_IsArray; 234864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_class: return UTT_IsClass; 234920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_complete_type: return UTT_IsCompleteType; 235020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_compound: return UTT_IsCompound; 235120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_const: return UTT_IsConst; 235264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_empty: return UTT_IsEmpty; 235364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_enum: return UTT_IsEnum; 23545e9392ba18f5925e26cc5714d1412eda0d219826Douglas Gregor case tok::kw___is_final: return UTT_IsFinal; 235520c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_floating_point: return UTT_IsFloatingPoint; 235620c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_function: return UTT_IsFunction; 235720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_fundamental: return UTT_IsFundamental; 235820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_integral: return UTT_IsIntegral; 235920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_lvalue_reference: return UTT_IsLvalueReference; 236020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_function_pointer: return UTT_IsMemberFunctionPointer; 236120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_object_pointer: return UTT_IsMemberObjectPointer; 236220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_member_pointer: return UTT_IsMemberPointer; 236320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_object: return UTT_IsObject; 23644e61ddd644e9c6293697a966d98d7c1905cf63a8Chandler Carruth case tok::kw___is_literal: return UTT_IsLiteral; 23653840281126e7d10552c55f6fd8b1ec9483898906Chandler Carruth case tok::kw___is_literal_type: return UTT_IsLiteral; 236664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_pod: return UTT_IsPOD; 236720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_pointer: return UTT_IsPointer; 236864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_polymorphic: return UTT_IsPolymorphic; 236920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_reference: return UTT_IsReference; 237020c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_rvalue_reference: return UTT_IsRvalueReference; 237120c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_scalar: return UTT_IsScalar; 237220c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_signed: return UTT_IsSigned; 237320c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_standard_layout: return UTT_IsStandardLayout; 237420c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_trivial: return UTT_IsTrivial; 2375feb375d31b7e9108b04a9f55b721d5e0c793a558Sean Hunt case tok::kw___is_trivially_copyable: return UTT_IsTriviallyCopyable; 237664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl case tok::kw___is_union: return UTT_IsUnion; 237720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_unsigned: return UTT_IsUnsigned; 237820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_void: return UTT_IsVoid; 237920c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_volatile: return UTT_IsVolatile; 238064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl } 23816ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 23826ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 23836ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichetstatic BinaryTypeTrait BinaryTypeTraitFromTokKind(tok::TokenKind kind) { 23846ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet switch(kind) { 238538c2b730a8553fa1cf369d0c5567f8b5d0a3dda8Francois Pichet default: llvm_unreachable("Not a known binary type trait"); 2386f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___is_base_of: return BTT_IsBaseOf; 238720c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_convertible: return BTT_IsConvertible; 238820c0da7787c9a7d2529e42a4a91d777778595d74John Wiegley case tok::kw___is_same: return BTT_IsSame; 2389f187237d916afa97c491ac32fe98be7d335c5b63Francois Pichet case tok::kw___builtin_types_compatible_p: return BTT_TypeCompatible; 23909f3611365d0f2297a910cf246e056708726ed10aDouglas Gregor case tok::kw___is_convertible_to: return BTT_IsConvertibleTo; 23916ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 239264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 239364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 239421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegleystatic ArrayTypeTrait ArrayTypeTraitFromTokKind(tok::TokenKind kind) { 239521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch(kind) { 239621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley default: llvm_unreachable("Not a known binary type trait"); 239721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_rank: return ATT_ArrayRank; 239821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_extent: return ATT_ArrayExtent; 239921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 240021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 240121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2402552622067dc45013d240f73952fece703f5e63bdJohn Wiegleystatic ExpressionTrait ExpressionTraitFromTokKind(tok::TokenKind kind) { 2403552622067dc45013d240f73952fece703f5e63bdJohn Wiegley switch(kind) { 2404b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie default: llvm_unreachable("Not a known unary expression trait."); 2405552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_lvalue_expr: return ET_IsLValueExpr; 2406552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_rvalue_expr: return ET_IsRValueExpr; 2407552622067dc45013d240f73952fece703f5e63bdJohn Wiegley } 2408552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2409552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 241064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// ParseUnaryTypeTrait - Parse the built-in unary type-trait 241164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// pseudo-functions that allow implementation of the TR1/C++0x type traits 241264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// templates. 241364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 241464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// primary-expression: 241564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// [GNU] unary-type-trait '(' type-id ')' 241664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl/// 241760d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseUnaryTypeTrait() { 241864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl UnaryTypeTrait UTT = UnaryTypeTraitFromTokKind(Tok.getKind()); 241964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl SourceLocation Loc = ConsumeToken(); 242064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 24214a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 24224a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 242364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl return ExprError(); 242464b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 242564b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // FIXME: Error reporting absolutely sucks! If the this fails to parse a type 242664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // there will be cryptic errors about mismatched parentheses and missing 242764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // specifiers. 2428809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 242964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 24304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 243164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 2432809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor if (Ty.isInvalid()) 2433809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor return ExprError(); 2434809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor 24354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnUnaryTypeTrait(UTT, Loc, Ty.get(), T.getCloseLocation()); 243664b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl} 2437f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 24386ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// ParseBinaryTypeTrait - Parse the built-in binary type-trait 24396ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// pseudo-functions that allow implementation of the TR1/C++0x type traits 24406ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// templates. 24416ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 24426ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// primary-expression: 24436ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// [GNU] binary-type-trait '(' type-id ',' type-id ')' 24446ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet/// 24456ad6f2848d7652ab2991286eb48be440d3493b28Francois PichetExprResult Parser::ParseBinaryTypeTrait() { 24466ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet BinaryTypeTrait BTT = BinaryTypeTraitFromTokKind(Tok.getKind()); 24476ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SourceLocation Loc = ConsumeToken(); 24486ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 24494a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 24504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 24516ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 24526ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 24536ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult LhsTy = ParseTypeName(); 24546ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (LhsTy.isInvalid()) { 24556ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 24566ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 24576ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 24586ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 24596ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (ExpectAndConsume(tok::comma, diag::err_expected_comma)) { 24606ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 24616ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 24626ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 24636ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 24646ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet TypeResult RhsTy = ParseTypeName(); 24656ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet if (RhsTy.isInvalid()) { 24666ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet SkipUntil(tok::r_paren); 24676ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet return ExprError(); 24686ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 24696ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 24704a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 24716ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 24724a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnBinaryTypeTrait(BTT, Loc, LhsTy.get(), RhsTy.get(), 24734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 24746ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 24756ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 247621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// ParseArrayTypeTrait - Parse the built-in array type-trait 247721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// pseudo-functions. 247821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 247921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// primary-expression: 248021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_rank' '(' type-id ')' 248121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_extent' '(' type-id ',' expression ')' 248221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 248321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John WiegleyExprResult Parser::ParseArrayTypeTrait() { 248421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ArrayTypeTrait ATT = ArrayTypeTraitFromTokKind(Tok.getKind()); 248521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SourceLocation Loc = ConsumeToken(); 248621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 24874a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 24884a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 248921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 249021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 249121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley TypeResult Ty = ParseTypeName(); 249221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (Ty.isInvalid()) { 249321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SkipUntil(tok::comma); 249421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SkipUntil(tok::r_paren); 249521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 249621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 249721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 249821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch (ATT) { 249921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayRank: { 25004a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 25014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), NULL, 25024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 250321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 250421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayExtent: { 250521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (ExpectAndConsume(tok::comma, diag::err_expected_comma)) { 250621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SkipUntil(tok::r_paren); 250721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 250821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 250921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 251021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ExprResult DimExpr = ParseExpression(); 25114a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 251221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 25134a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), DimExpr.get(), 25144a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 251521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 251621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 25173026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie llvm_unreachable("Invalid ArrayTypeTrait!"); 251821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 251921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2520552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// ParseExpressionTrait - Parse built-in expression-trait 2521552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// pseudo-functions like __is_lvalue_expr( xxx ). 2522552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2523552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// primary-expression: 2524552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// [Embarcadero] expression-trait '(' expression ')' 2525552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2526552622067dc45013d240f73952fece703f5e63bdJohn WiegleyExprResult Parser::ParseExpressionTrait() { 2527552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExpressionTrait ET = ExpressionTraitFromTokKind(Tok.getKind()); 2528552622067dc45013d240f73952fece703f5e63bdJohn Wiegley SourceLocation Loc = ConsumeToken(); 2529552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 25304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 25314a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen)) 2532552622067dc45013d240f73952fece703f5e63bdJohn Wiegley return ExprError(); 2533552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2534552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExprResult Expr = ParseExpression(); 2535552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 25364a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 2537552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 25384a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnExpressionTrait(ET, Loc, Expr.get(), 25394a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 2540552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2541552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2542552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2543f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 2544f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 2545f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 254660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 2547f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 2548b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &CastTy, 25494a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker &Tracker) { 2550f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(getLang().CPlusPlus && "Should only be called for C++!"); 2551f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 2552f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 2553f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 255460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(true); 2555b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall CastTy = ParsedType(); 2556f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2557f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 2558f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2559f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 2560f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 2561f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 2562f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 2563f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2564f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 2565f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 2566f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 2567f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2568f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 2569a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 2570f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // 2571f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // It uses a scheme similar to parsing inline methods. The parenthesized 2572f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // tokens are cached, the context that follows is determined (possibly by 2573f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parsing a cast-expression), and then we re-introduce the cached tokens 2574f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // into the token stream and parse them appropriately. 2575f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 25761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenParseOption ParseAs; 2577f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis CachedTokens Toks; 2578f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2579f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Store the tokens of the parentheses. We will parse them after we determine 2580f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // the context that follows them. 258114b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis if (!ConsumeAndStoreUntil(tok::r_paren, Toks)) { 2582f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We didn't find the ')' we expected. 25834a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 2584f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 2585f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2586f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2587f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 2588f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = CompoundLiteral; 2589f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } else { 2590f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis bool NotCastExpr; 2591b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // FIXME: Special-case ++ and --: "(S())++;" is not a cast-expression 2592b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman if (Tok.is(tok::l_paren) && NextToken().is(tok::r_paren)) { 2593b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr = true; 2594b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } else { 2595b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // Try parsing the cast-expression that may follow. 2596b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // If it is not a cast-expression, NotCastExpr will be true and no token 2597b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // will be consumed. 2598b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman Result = ParseCastExpression(false/*isUnaryExpression*/, 2599b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman false/*isAddressofOperand*/, 2600b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall NotCastExpr, 26010a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // type-id has priority. 2602cd78e612d6fa8e214e6a6bb0e739a0c3e419df91Kaelyn Uhrain IsTypeCast); 2603b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } 2604f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2605f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // If we parsed a cast-expression, it's really a type-id, otherwise it's 2606f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // an expression. 2607f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = NotCastExpr ? SimpleExpr : CastExpr; 2608f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2609f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 26101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The current token should go after the cached tokens. 2611f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Toks.push_back(Tok); 2612f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Re-enter the stored parenthesized tokens into the token stream, so we may 2613f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parse them now. 2614f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis PP.EnterTokenStream(Toks.data(), Toks.size(), 2615f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis true/*DisableMacroExpansion*/, false/*OwnsTokens*/); 2616f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Drop the current token and bring the first cached one. It's the same token 2617f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // as when we entered this function. 2618f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ConsumeAnyToken(); 2619f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2620f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs >= CompoundLiteral) { 26210a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // Parse the type declarator. 26220a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 26230a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 26240a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 26250a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 2626f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2627f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Match the ')'. 26284a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 2629f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2630f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs == CompoundLiteral) { 2631f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ExprType = CompoundLiteral; 26320a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis TypeResult Ty = ParseTypeName(); 26334a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return ParseCompoundLiteralExpression(Ty.get(), 26344a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getOpenLocation(), 26354a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getCloseLocation()); 2636f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } 26371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2638f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We parsed '(' type-id ')' and the thing after it wasn't a '{'. 2639f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == CastExpr); 2640f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 26410a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis if (DeclaratorInfo.isInvalidType()) 2642f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ExprError(); 2643f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2644f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Result is what ParseCastExpression returned earlier. 2645f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 26464a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCastExpr(getCurScope(), Tracker.getOpenLocation(), 26474a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor DeclaratorInfo, CastTy, 26484a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getCloseLocation(), Result.take()); 2649f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 2650f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 26511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2652f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Not a compound literal, and not followed by a cast-expression. 2653f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == SimpleExpr); 2654f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2655f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 2656f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Result = ParseExpression(); 2657f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 26584a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnParenExpr(Tracker.getOpenLocation(), 26594a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tok.getLocation(), Result.take()); 2660f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2661f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 2662f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 2663f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SkipUntil(tok::r_paren); 2664f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 2665f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 26661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26674a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 2668f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return move(Result); 2669f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 2670