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//===----------------------------------------------------------------------===// 13651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/AST/ASTContext.h" 14bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor#include "RAIIObjectsForParser.h" 15651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/AST/DeclTemplate.h" 16dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman#include "clang/Basic/PrettyStackTrace.h" 1733762775706e81c17ca774102ceda36049ecc593Richard Smith#include "clang/Lex/LiteralSupport.h" 1855fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Parse/ParseDiagnostic.h" 19651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/Parse/Parser.h" 2019510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 2119510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/ParsedTemplate.h" 2255fc873017f10f6f566b182b70f6fc22aefa3464Chandler Carruth#include "clang/Sema/Scope.h" 233f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor#include "llvm/Support/ErrorHandling.h" 243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 25fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic int SelectDigraphErrorMessage(tok::TokenKind Kind) { 29ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith switch (Kind) { 30651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // template name 31651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::unknown: return 0; 32651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // casts 33ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_const_cast: return 1; 34ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_dynamic_cast: return 2; 35ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_reinterpret_cast: return 3; 36ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith case tok::kw_static_cast: return 4; 37ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith default: 38b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Unknown type for digraph error message."); 39ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith } 40ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 41ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 42ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Are the two tokens adjacent in the same source file? 4319a2702042b7e3ee838cca458b35f607111a3897Richard Smithbool Parser::areTokensAdjacent(const Token &First, const Token &Second) { 44ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceManager &SM = PP.getSourceManager(); 45ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceLocation FirstLoc = SM.getSpellingLoc(First.getLocation()); 46a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis SourceLocation FirstEnd = FirstLoc.getLocWithOffset(First.getLength()); 47ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith return FirstEnd == SM.getSpellingLoc(Second.getLocation()); 48ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 49ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 50ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith// Suggest fixit for "<::" after a cast. 51ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smithstatic void FixDigraph(Parser &P, Preprocessor &PP, Token &DigraphToken, 52ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Token &ColonToken, tok::TokenKind Kind, bool AtDigraph) { 53ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Pull '<:' and ':' off token stream. 54ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 55ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(DigraphToken); 56ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.Lex(ColonToken); 57ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 58ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith SourceRange Range; 59ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setBegin(DigraphToken.getLocation()); 60ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith Range.setEnd(ColonToken.getLocation()); 61ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith P.Diag(DigraphToken.getLocation(), diag::err_missing_whitespace_digraph) 62ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << SelectDigraphErrorMessage(Kind) 63ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith << FixItHint::CreateReplacement(Range, "< ::"); 64ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 65ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Update token information to reflect their change in token type. 66ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setKind(tok::coloncolon); 67a64ccefdf0ea4e03ec88805d71b0af74950c7472Argyrios Kyrtzidis ColonToken.setLocation(ColonToken.getLocation().getLocWithOffset(-1)); 68ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith ColonToken.setLength(2); 69ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setKind(tok::less); 70ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith DigraphToken.setLength(1); 71ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 72ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Push new tokens back to token stream. 73ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(ColonToken); 74ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith if (!AtDigraph) 75ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith PP.EnterToken(DigraphToken); 76ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith} 77ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 78950be71c745409e373ae8a834490f9026c8ac222Richard Trieu// Check for '<::' which should be '< ::' instead of '[:' when following 79950be71c745409e373ae8a834490f9026c8ac222Richard Trieu// a template name. 80950be71c745409e373ae8a834490f9026c8ac222Richard Trieuvoid Parser::CheckForTemplateAndDigraph(Token &Next, ParsedType ObjectType, 81950be71c745409e373ae8a834490f9026c8ac222Richard Trieu bool EnteringContext, 82950be71c745409e373ae8a834490f9026c8ac222Richard Trieu IdentifierInfo &II, CXXScopeSpec &SS) { 83c11030ea936f6952deb5a1423ce1648173cd417eRichard Trieu if (!Next.is(tok::l_square) || Next.getLength() != 2) 84950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 85950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 86950be71c745409e373ae8a834490f9026c8ac222Richard Trieu Token SecondToken = GetLookAheadToken(2); 8719a2702042b7e3ee838cca458b35f607111a3897Richard Smith if (!SecondToken.is(tok::colon) || !areTokensAdjacent(Next, SecondToken)) 88950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 89950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 90950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateTy Template; 91950be71c745409e373ae8a834490f9026c8ac222Richard Trieu UnqualifiedId TemplateName; 92950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateName.setIdentifier(&II, Tok.getLocation()); 93950be71c745409e373ae8a834490f9026c8ac222Richard Trieu bool MemberOfUnknownSpecialization; 94950be71c745409e373ae8a834490f9026c8ac222Richard Trieu if (!Actions.isTemplateName(getCurScope(), SS, /*hasTemplateKeyword=*/false, 95950be71c745409e373ae8a834490f9026c8ac222Richard Trieu TemplateName, ObjectType, EnteringContext, 96950be71c745409e373ae8a834490f9026c8ac222Richard Trieu Template, MemberOfUnknownSpecialization)) 97950be71c745409e373ae8a834490f9026c8ac222Richard Trieu return; 98950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 99651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FixDigraph(*this, PP, Next, SecondToken, tok::unknown, 100950be71c745409e373ae8a834490f9026c8ac222Richard Trieu /*AtDigraph*/false); 101950be71c745409e373ae8a834490f9026c8ac222Richard Trieu} 102950be71c745409e373ae8a834490f9026c8ac222Richard Trieu 103919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu/// \brief Emits an error for a left parentheses after a double colon. 104919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu/// 105919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu/// When a '(' is found after a '::', emit an error. Attempt to fix the token 106bba91b881c946cbcd200c87dc0a83553506e2458Nico Weber/// stream by removing the '(', and the matching ')' if found. 107919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieuvoid Parser::CheckForLParenAfterColonColon() { 108919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (!Tok.is(tok::l_paren)) 109919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu return; 110919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 111919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu SourceLocation l_parenLoc = ConsumeParen(), r_parenLoc; 112919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok1 = getCurToken(); 113919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (!Tok1.is(tok::identifier) && !Tok1.is(tok::star)) 114919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu return; 115919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 116919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok1.is(tok::identifier)) { 117919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok2 = GetLookAheadToken(1); 118919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok2.is(tok::r_paren)) { 119919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu ConsumeToken(); 120919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu PP.EnterToken(Tok1); 121919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu r_parenLoc = ConsumeParen(); 122919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 123919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } else if (Tok1.is(tok::star)) { 124919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok2 = GetLookAheadToken(1); 125919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok2.is(tok::identifier)) { 126919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Token Tok3 = GetLookAheadToken(2); 127919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu if (Tok3.is(tok::r_paren)) { 128919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu ConsumeToken(); 129919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu ConsumeToken(); 130919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu PP.EnterToken(Tok2); 131919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu PP.EnterToken(Tok1); 132919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu r_parenLoc = ConsumeParen(); 133919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 134919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 135919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu } 136919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 137919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu Diag(l_parenLoc, diag::err_paren_after_colon_colon) 138919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu << FixItHint::CreateRemoval(l_parenLoc) 139919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu << FixItHint::CreateRemoval(r_parenLoc); 140919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu} 141919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 1421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Parse global scope or nested-name-specifier if present. 1432dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1442dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// Parses a C++ global scope specifier ('::') or nested-name-specifier (which 1451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// may be preceded by '::'). Note that this routine will not parse ::new or 1462dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// ::delete; it will just leave them in the token stream. 147eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 148eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 149eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 150eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 151eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 152eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 153eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 154eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 1552dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier 'template'[opt] simple-template-id '::' 1562dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1572dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param SS the scope specifier that will be set to the parsed 1592dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// nested-name-specifier (or empty) 1602dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 1611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \param ObjectType if this nested-name-specifier is being parsed following 1622dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the "." or "->" of a member access expression, this parameter provides the 1632dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// type of the object whose members are being accessed. 164eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 1652dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// \param EnteringContext whether we will be entering into the context of 1662dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// the nested-name-specifier after parsing it. 1672dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor/// 168d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param MayBePseudoDestructor When non-NULL, points to a flag that 169d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// indicates whether this nested-name-specifier may be part of a 170d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor name. In this case, the flag will be set false 171d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we don't actually end up parsing a destructor name. Moreorover, 172d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// if we do end up determining that we are parsing a destructor name, 173d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// the last component of the nested-name-specifier is not parsed as 174d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// part of the scope specifier. 1752db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// 1762db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// \param IsTypename If \c true, this nested-name-specifier is known to be 1772db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// part of a type name. This is used to improve error recovery. 1782db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// 1792db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// \param LastII When non-NULL, points to an IdentifierInfo* that will be 1802db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// filled in with the leading identifier in the last component of the 1812db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith/// nested-name-specifier, if any. 182b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor/// 1839ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall/// \returns true if there was an error parsing a scope specifier 184495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregorbool Parser::ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS, 185b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 186b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor bool EnteringContext, 1874147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet bool *MayBePseudoDestructor, 1882db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith bool IsTypename, 1892db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith IdentifierInfo **LastII) { 1904e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && 1917452c6fc567ea1799f617395d0fa4c7ed075e5d9Chris Lattner "Call sites of this function should be guarded by checking for C++"); 1921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 193eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 1942db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith assert(!LastII && "want last identifier but have already annotated scope"); 195c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Actions.RestoreNestedNameSpecifierAnnotation(Tok.getAnnotationValue(), 196c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor Tok.getAnnotationRange(), 197c34348a7ef1a6b3f92a644a227953800cd1f9947Douglas Gregor SS); 198eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 1999ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 200eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 201e607e808c2b90724a2a6fd841e850f07de1f5b30Chris Lattner 2029c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo if (Tok.is(tok::annot_template_id)) { 2039c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo // If the current token is an annotated template id, it may already have 2049c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo // a scope specifier. Restore it. 2059c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 2069c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo SS = TemplateId->SS; 2079c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo } 2089c90f7f1b8f52a49254c2337df6f0e8034e19551Larisse Voufo 2092db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith if (LastII) 2106bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines *LastII = nullptr; 2112db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith 21239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool HasScopeSpecifier = false; 21339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 2145b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (Tok.is(tok::coloncolon)) { 2155b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner // ::new and ::delete aren't nested-name-specifiers. 2165b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner tok::TokenKind NextKind = NextToken().getKind(); 2175b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner if (NextKind == tok::kw_new || NextKind == tok::kw_delete) 2185b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner return false; 2191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22055a7cefc846765ac7d142a63f773747a20518d71Chris Lattner // '::' - Global scope qualifier. 2212e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXGlobalScopeSpecifier(getCurScope(), ConsumeToken(), SS)) 2222e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor return true; 223919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 224919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu CheckForLParenAfterColonColon(); 225919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 22639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor HasScopeSpecifier = true; 227eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 228eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 229d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor bool CheckForDestructor = false; 230d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (MayBePseudoDestructor && *MayBePseudoDestructor) { 231d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CheckForDestructor = true; 232d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = false; 233d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 234d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 23542d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Tok.is(tok::kw_decltype) || Tok.is(tok::annot_decltype)) { 23642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie DeclSpec DS(AttrFactory); 23742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation DeclLoc = Tok.getLocation(); 23842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SourceLocation EndLoc = ParseDecltypeSpecifier(DS); 239651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 240651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SourceLocation CCLoc; 241651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!TryConsumeToken(tok::coloncolon, CCLoc)) { 24242d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie AnnotateExistingDecltypeSpecifier(DS, DeclLoc, EndLoc); 24342d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie return false; 24442d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie } 245651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 24642d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie if (Actions.ActOnCXXNestedNameSpecifierDecltype(SS, DS, CCLoc)) 24742d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie SS.SetInvalid(SourceRange(DeclLoc, CCLoc)); 24842d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 24942d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie HasScopeSpecifier = true; 25042d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie } 25142d6d0c91ab089cb252ab2f91c16d4557f458a2cDavid Blaikie 25239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor while (true) { 2532dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (HasScopeSpecifier) { 2542dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // C++ [basic.lookup.classref]p5: 2552dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If the qualified-id has the form 2563b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 2572dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // ::class-name-or-namespace-name::... 2583b6afbb99a1c44b4076f8e15fb7311405941b306Douglas Gregor // 2592dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // the class-name-or-namespace-name is looked up in global scope as a 2602dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // class-name or namespace-name. 2612dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // 2622dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // To implement this, we clear out the object type as soon as we've 2632dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // seen a leading '::' or part of a nested-name-specifier. 264b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ObjectType = ParsedType(); 26581b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor 26681b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor if (Tok.is(tok::code_completion)) { 26781b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // Code completion for a nested-name-specifier, where the code 26881b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor // code completion token follows the '::'. 26923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteQualifiedId(getCurScope(), SS, EnteringContext); 270b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Include code completion token into the range of the scope otherwise 271b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // when we try to annotate the scope tokens the dangling code completion 272b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // token will cause assertion in 273b6b2b180c6857af75c6683f7107a7c8994f074edArgyrios Kyrtzidis // Preprocessor::AnnotatePreviousCachedTokens. 2747d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis SS.setEndLoc(Tok.getLocation()); 2757d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 2767d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return true; 27781b747b7fcc91c2fba9a3183d8fac80adbfc1d3eDouglas Gregor } 2782dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor } 2791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier: 28177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // nested-name-specifier 'template'[opt] simple-template-id '::' 28277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner 28377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // Parse the optional 'template' keyword, then make sure we have 28477cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner // 'identifier <' after it. 28577cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner if (Tok.is(tok::kw_template)) { 2862dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor // If we don't have a scope specifier or an object type, this isn't a 287eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // nested-name-specifier, since they aren't allowed to start with 288eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman // 'template'. 2892dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor if (!HasScopeSpecifier && !ObjectType) 290eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman break; 291eab975dce83fcf6a7fa8fc9379944d4b1aaf1a00Eli Friedman 2927bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TentativeParsingAction TPA(*this); 29377cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner SourceLocation TemplateKWLoc = ConsumeToken(); 294651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 295ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId TemplateName; 296ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Tok.is(tok::identifier)) { 297ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the identifier. 2987bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 299ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 300ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else if (Tok.is(tok::kw_operator)) { 301651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // We don't need to actually parse the unqualified-id in this case, 302651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // because a simple-template-id cannot start with 'operator', but 303651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // go ahead and parse it anyway for consistency with the case where 304651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // we already annotated the template-id. 305651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, 3067bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TemplateName)) { 3077bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 308ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 3097bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 310651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 311e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if (TemplateName.getKind() != UnqualifiedId::IK_OperatorFunctionId && 312e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt TemplateName.getKind() != UnqualifiedId::IK_LiteralOperatorId) { 313ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Diag(TemplateName.getSourceRange().getBegin(), 314ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor diag::err_id_after_template_in_nested_name_spec) 315ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor << TemplateName.getSourceRange(); 3167bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 317ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 318ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 319ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 3207bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 32177cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner break; 32277cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 3231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3247bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // If the next token is not '<', we have a qualified-id that refers 3257bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // to a template name, such as T::template apply, but is not a 3267bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // template-id. 3277bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor if (Tok.isNot(tok::less)) { 3287bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Revert(); 3297bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor break; 3307bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor } 3317bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor 3327bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor // Commit to parsing the template-id. 3337bb87fca7d22a8a194d04188746b90f46512975fDouglas Gregor TPA.Commit(); 334d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateTy Template; 335e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (TemplateNameKind TNK 336e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara = Actions.ActOnDependentTemplateName(getCurScope(), 337e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, TemplateName, 338e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 339e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template)) { 340e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, TemplateKWLoc, 341e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 342d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 343d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } else 3449ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 3451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34677cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner continue; 34777cf72a95baa18e82737bb45131e9658a00fee16Chris Lattner } 3481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor if (Tok.is(tok::annot_template_id) && NextToken().is(tok::coloncolon)) { 3501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // We have 35139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 352651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // template-id '::' 35339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // 354651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // So we need to check whether the template-id is a simple-template-id of 355651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // the right kind (it should name a type or be dependent), and then 356c45c232440dfafedca1a3773b904fb42609b1b19Douglas Gregor // convert it into a type within the nested-name-specifier. 35725a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 358d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde)) { 359d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 3609ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 361d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 362d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 3632db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith if (LastII) 3642db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith *LastII = TemplateId->Name; 3652db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith 3666cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor // Consume the template-id token. 3676cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor ConsumeToken(); 3686bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 3696cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor assert(Tok.is(tok::coloncolon) && "NextToken() not working properly!"); 3706cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation CCLoc = ConsumeToken(); 3711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3726796fc1adcaf57c38d072a238b016b2834afbe0dDavid Blaikie HasScopeSpecifier = true; 3736bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 3745354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateId->getTemplateArgs(), 3756cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->NumArgs); 3766bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 3776cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), 378e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, 379e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateId->TemplateKWLoc, 3806cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->Template, 3816cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->TemplateNameLoc, 3826cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->LAngleLoc, 3836cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateArgsPtr, 3846cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor TemplateId->RAngleLoc, 3856cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor CCLoc, 3866cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor EnteringContext)) { 3876cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SourceLocation StartLoc 3886cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor = SS.getBeginLoc().isValid()? SS.getBeginLoc() 3896cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor : TemplateId->TemplateNameLoc; 3906cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor SS.SetInvalid(SourceRange(StartLoc, CCLoc)); 39167b9e831943300ce54e564e601971828ce4def15Chris Lattner } 392eccce7e246a17e12a2afd6eabb9ac7c8d582db4eArgyrios Kyrtzidis 3936cd9d4aa13c2145c8b4398453974515b734bfe42Douglas Gregor continue; 39439a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 39539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor 3965c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // The rest of the nested-name-specifier possibilities start with 3975c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // tok::identifier. 3985c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Tok.isNot(tok::identifier)) 3995c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner break; 4005c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 4015c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner IdentifierInfo &II = *Tok.getIdentifierInfo(); 4025c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 4035c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 4045c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '::' 4055c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // namespace-name '::' 4065c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier identifier '::' 4075c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner Token Next = NextToken(); 40846646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 40946646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // If we get foo:bar, this is almost certainly a typo for foo::bar. Recover 41046646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner // and emit a fixit hint for it. 411b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor if (Next.is(tok::colon) && !ColonIsSacred) { 4122e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.IsInvalidUnlessNestedName(getCurScope(), SS, II, 4132e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Tok.getLocation(), 4142e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor Next.getLocation(), ObjectType, 415b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor EnteringContext) && 416b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // If the token after the colon isn't an identifier, it's still an 417b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // error, but they probably meant something else strange so don't 418b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // recover like this. 419b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor PP.LookAhead(1).is(tok::identifier)) { 4206bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Diag(Next, diag::err_unexpected_colon_in_nested_name_spec) 421849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateReplacement(Next.getLocation(), "::"); 422b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor // Recover as if the user wrote '::'. 423b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor Next.setKind(tok::coloncolon); 424b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor } 42546646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner } 42646646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner 4275c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::coloncolon)) { 42877549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor if (CheckForDestructor && GetLookAheadToken(2).is(tok::tilde) && 42923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor !Actions.isNonTypeNestedNameSpecifier(getCurScope(), SS, Tok.getLocation(), 43077549080fb7b9af31606b3c1b4830a94429fb1fdDouglas Gregor II, ObjectType)) { 431d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 4329ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 433d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 434d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 4356bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (ColonIsSacred) { 4366bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const Token &Next2 = GetLookAheadToken(2); 4376bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (Next2.is(tok::kw_private) || Next2.is(tok::kw_protected) || 4386bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Next2.is(tok::kw_public) || Next2.is(tok::kw_virtual)) { 4396bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Diag(Next2, diag::err_unexpected_token_in_nested_name_spec) 4406bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines << Next2.getName() 4416bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines << FixItHint::CreateReplacement(Next.getLocation(), ":"); 4426bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Token ColonColon; 4436bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PP.Lex(ColonColon); 4446bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ColonColon.setKind(tok::colon); 4456bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PP.EnterToken(ColonColon); 4466bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines break; 4476bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 4486bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 4496bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 4502db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith if (LastII) 4512db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith *LastII = &II; 4522db075b1d3b16f0100fe06408dfb4ab7d50700a4Richard Smith 4535c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // We have an identifier followed by a '::'. Lookup this name 4545c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // as the name in a nested-name-specifier. 4556bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Token Identifier = Tok; 4565c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation IdLoc = ConsumeToken(); 45746646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner assert((Tok.is(tok::coloncolon) || Tok.is(tok::colon)) && 45846646491834cd8faabb22482dfe93b24ce28a6c1Chris Lattner "NextToken() not working properly!"); 4596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Token ColonColon = Tok; 4605c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner SourceLocation CCLoc = ConsumeToken(); 4611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 462919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu CheckForLParenAfterColonColon(); 463919b9557b4f0155dfaaea309493ff2a702fca676Richard Trieu 4646bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool IsCorrectedToColon = false; 4656bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool *CorrectionFlagPtr = ColonIsSacred ? &IsCorrectedToColon : nullptr; 4662e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor if (Actions.ActOnCXXNestedNameSpecifier(getCurScope(), II, IdLoc, CCLoc, 4676bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ObjectType, EnteringContext, SS, 4686bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines false, CorrectionFlagPtr)) { 4696bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines // Identifier is not recognized as a nested name, but we can have 4706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines // mistyped '::' instead of ':'. 4716bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (CorrectionFlagPtr && IsCorrectedToColon) { 4726bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ColonColon.setKind(tok::colon); 4736bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PP.EnterToken(Tok); 4746bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines PP.EnterToken(ColonColon); 4756bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Tok = Identifier; 4766bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines break; 4776bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 4782e4c34ac53d08633b9473df921db4c7e4c9cd577Douglas Gregor SS.SetInvalid(SourceRange(IdLoc, CCLoc)); 4796bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 4806bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines HasScopeSpecifier = true; 4815c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 4825c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 4831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 484950be71c745409e373ae8a834490f9026c8ac222Richard Trieu CheckForTemplateAndDigraph(Next, ObjectType, EnteringContext, II, SS); 485ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 4865c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // nested-name-specifier: 4875c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // type-name '<' 4885c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner if (Next.is(tok::less)) { 4895c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner TemplateTy Template; 490014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 491014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(&II, Tok.getLocation()); 4921fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 49323c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (TemplateNameKind TNK = Actions.isTemplateName(getCurScope(), SS, 4947c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara /*hasTemplateKeyword=*/false, 495014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName, 4962dd078ae50ff7be1fb25ebeedde45e9ab691a4f0Douglas Gregor ObjectType, 497495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor EnteringContext, 4981fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Template, 4991fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization)) { 5006796fc1adcaf57c38d072a238b016b2834afbe0dDavid Blaikie // We have found a template name, so annotate this token 5015c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // with a template-id annotation. We do not permit the 5025c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // template-id to be translated into a type annotation, 5035c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // because some clients (e.g., the parsing of class template 5045c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // specializations) still want to see the original template-id 5055c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner // token. 506ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor ConsumeToken(); 507e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 508e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 5099ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return true; 5105c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner continue; 511ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo } 512ef4579cda09b73e3d4d98af48201da25adc29326Larisse Voufo 513d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor if (MemberOfUnknownSpecialization && (ObjectType || SS.isSet()) && 5144147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet (IsTypename || IsTemplateArgumentList(1))) { 515d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // We have something like t::getAs<T>, where getAs is a 516d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // member of an unknown specialization. However, this will only 517d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 518d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor // before 'getAs' and treat this as a dependent template name. 5194147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet unsigned DiagID = diag::err_missing_dependent_template_keyword; 5204e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().MicrosoftExt) 521cf320c6388c90f1938c264e87d77a0e43946e2c3Francois Pichet DiagID = diag::warn_missing_dependent_template_keyword; 5224147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet 5234147d307086cf024a40a080e2bf379e9725f6f41Francois Pichet Diag(Tok.getLocation(), DiagID) 524d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << II.getName() 525d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor << FixItHint::CreateInsertion(Tok.getLocation(), "template "); 526d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor 527d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TemplateNameKind TNK 52823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor = Actions.ActOnDependentTemplateName(getCurScope(), 529e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, SourceLocation(), 530d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor TemplateName, ObjectType, 531d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor EnteringContext, Template)) { 532d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor // Consume the identifier. 533d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor ConsumeToken(); 534e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (AnnotateTemplateIdToken(Template, TNK, SS, SourceLocation(), 535e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateName, false)) 536e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return true; 537d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor } 538d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor else 539d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor return true; 540d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor 541d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor continue; 5425c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 5435c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner } 5445c7f786e3269ee2b512ecf13ccf556c47be83a76Chris Lattner 54539a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // We don't have any tokens that form the beginning of a 54639a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor // nested-name-specifier, so we're done. 54739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor break; 54839a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor } 5491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 550d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Even if we didn't see any pieces of a nested-name-specifier, we 551d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // still check whether there is a tilde in this position, which 552d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // indicates a potential pseudo-destructor. 553d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (CheckForDestructor && Tok.is(tok::tilde)) 554d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor *MayBePseudoDestructor = true; 555d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 5569ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall return false; 557eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 558eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 559eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 560eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 561eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 562eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 563eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 564eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 565eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 566eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 567eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 568eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 569edce4dd44732dfad69f28822dddcf2b8e92b4483Douglas Gregor/// '::' template-id 570eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 571eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 572eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 573eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 574eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 575eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 576eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 577eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 578eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 579eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 580eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 581eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 582eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 583eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 584eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 585eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 586eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 587eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 588eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 589eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 590eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 591eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 592eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 593eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 594eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 595eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 596ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// The isAddressOfOperand parameter indicates that this id-expression is a 597ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// direct operand of the address-of operator. This is, besides member contexts, 598ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// the only place where a qualified-id naming a non-static class member may 599ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// appear. 600ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl/// 60160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXIdExpression(bool isAddressOfOperand) { 602eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 603eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 604eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 605eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 606eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 607efaa93aaa2653f4eb40e6a22e504a448da94aaf8Douglas Gregor ParseOptionalCXXScopeSpecifier(SS, ParsedType(), /*EnteringContext=*/false); 608e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 609e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc; 61002a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor UnqualifiedId Name; 611e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara if (ParseUnqualifiedId(SS, 612e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*EnteringContext=*/false, 613e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AllowDestructorName=*/false, 614e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AllowConstructorName=*/false, 615b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /*ObjectType=*/ ParsedType(), 616e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc, 61702a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor Name)) 61802a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor return ExprError(); 619b681b61fea36618778b8030360e90e3f4641233bJohn McCall 620b681b61fea36618778b8030360e90e3f4641233bJohn McCall // This is only the direct operand of an & operator if it is not 621b681b61fea36618778b8030360e90e3f4641233bJohn McCall // followed by a postfix-expression suffix. 6229c72c6088d591ace8503b842d39448c2040f3033John McCall if (isAddressOfOperand && isPostfixExpressionSuffixStart()) 6239c72c6088d591ace8503b842d39448c2040f3033John McCall isAddressOfOperand = false; 624e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara 625e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return Actions.ActOnIdExpression(getCurScope(), SS, TemplateKWLoc, Name, 626e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Tok.is(tok::l_paren), isAddressOfOperand); 627eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 628eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 6290a664b863255065d960342dd074a77d63c753d35Richard Smith/// ParseLambdaExpression - Parse a C++11 lambda expression. 630ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 631ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-expression: 632ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer lambda-declarator[opt] compound-statement 633ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 634ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-introducer: 635ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '[' lambda-capture[opt] ']' 636ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 637ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-capture: 638ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default 639ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list 640ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default ',' capture-list 641ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 642ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-default: 643ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' 644ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '=' 645ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 646ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list: 647ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture 648ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture-list ',' capture 649ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 650ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// capture: 6510a664b863255065d960342dd074a77d63c753d35Richard Smith/// simple-capture 6520a664b863255065d960342dd074a77d63c753d35Richard Smith/// init-capture [C++1y] 6530a664b863255065d960342dd074a77d63c753d35Richard Smith/// 6540a664b863255065d960342dd074a77d63c753d35Richard Smith/// simple-capture: 655ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// identifier 656ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '&' identifier 657ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'this' 658ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 6590a664b863255065d960342dd074a77d63c753d35Richard Smith/// init-capture: [C++1y] 6600a664b863255065d960342dd074a77d63c753d35Richard Smith/// identifier initializer 6610a664b863255065d960342dd074a77d63c753d35Richard Smith/// '&' identifier initializer 6620a664b863255065d960342dd074a77d63c753d35Richard Smith/// 663ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// lambda-declarator: 664ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// '(' parameter-declaration-clause ')' attribute-specifier[opt] 665ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 'mutable'[opt] exception-specification[opt] 666ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// trailing-return-type[opt] 667ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 668ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpression() { 669ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-introducer. 670ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 6712434dcfb022778b06cfd257d830d0249680b87cfBill Wendling Optional<unsigned> DiagID = ParseLambdaIntroducer(Intro); 672ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 673ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, DiagID.getValue()); 6748fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_square, StopAtSemi); 6758fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::l_brace, StopAtSemi); 6768fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_brace, StopAtSemi); 677dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprError(); 678ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 679ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 680ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 681ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 682ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 683ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// TryParseLambdaExpression - Use lookahead and potentially tentative 684ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// parsing to determine if we are looking at a C++0x lambda expression, and parse 685ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// it if we are. 686ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 687ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// If we are not looking at a lambda expression, returns ExprError(). 688ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::TryParseLambdaExpression() { 68980ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith assert(getLangOpts().CPlusPlus11 690ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && Tok.is(tok::l_square) 691ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor && "Not at the start of a possible lambda expression."); 692ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 693ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor const Token Next = NextToken(), After = GetLookAheadToken(2); 694ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 695ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // If lookahead indicates this is a lambda... 696ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::r_square) || // [] 697ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Next.is(tok::equal) || // [= 698ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::amp) && // [&] or [&, 699ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (After.is(tok::r_square) || 700ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::comma))) || 701ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (Next.is(tok::identifier) && // [identifier] 702ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor After.is(tok::r_square))) { 703ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpression(); 704ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 705ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 706dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // If lookahead indicates an ObjC message send... 707dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // [identifier identifier 708ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Next.is(tok::identifier) && After.is(tok::identifier)) { 709dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprEmpty(); 710ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 7112434dcfb022778b06cfd257d830d0249680b87cfBill Wendling 712dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // Here, we're stuck: lambda introducers and Objective-C message sends are 713dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // unambiguous, but it requires arbitrary lookhead. [a,b,c,d,e,f,g] is a 714dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // lambda, and [a,b,c,d,e,f,g h] is a Objective-C message send. Instead of 715dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // writing two routines to parse a lambda introducer, just try to parse 716dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // a lambda introducer first, and fall back if that fails. 717dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman // (TryParseLambdaIntroducer never produces any diagnostic output.) 718ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer Intro; 719ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (TryParseLambdaIntroducer(Intro)) 720dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprEmpty(); 7212434dcfb022778b06cfd257d830d0249680b87cfBill Wendling 722ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return ParseLambdaExpressionAfterIntroducer(Intro); 723ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 724ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 725440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// \brief Parse a lambda introducer. 726440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// \param Intro A LambdaIntroducer filled in with information about the 727440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// contents of the lambda-introducer. 728440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// \param SkippedInits If non-null, we are disambiguating between an Obj-C 729440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// message send and a lambda expression. In this mode, we will 730440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// sometimes skip the initializers for init-captures and not fully 731440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// populate \p Intro. This flag will be set to \c true if we do so. 732440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// \return A DiagnosticID if it hit something unexpected. The location for 733440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith/// for the diagnostic is that of the current token. 734440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard SmithOptional<unsigned> Parser::ParseLambdaIntroducer(LambdaIntroducer &Intro, 735440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith bool *SkippedInits) { 736dc84cd5efdd3430efb22546b4ac656aa0540b210David Blaikie typedef Optional<unsigned> DiagResult; 737ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 738ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor assert(Tok.is(tok::l_square) && "Lambda expressions begin with '['."); 7394a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 7404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 7414a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 7424a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Intro.Range.setBegin(T.getOpenLocation()); 743ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 744ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor bool first = true; 745ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 746ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture-default. 747ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp) && 748ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor (NextToken().is(tok::comma) || NextToken().is(tok::r_square))) { 749ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByRef; 7503ac109cd17151bb8ad3a40b0cbb0e1923cd6c4a0Douglas Gregor Intro.DefaultLoc = ConsumeToken(); 751ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 752ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::equal)) { 753ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Intro.Default = LCD_ByCopy; 7543ac109cd17151bb8ad3a40b0cbb0e1923cd6c4a0Douglas Gregor Intro.DefaultLoc = ConsumeToken(); 755ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor first = false; 756ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 757ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 758ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor while (Tok.isNot(tok::r_square)) { 759ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (!first) { 76081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.isNot(tok::comma)) { 761437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // Provide a completion for a lambda introducer here. Except 762437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // in Objective-C, where this is Almost Surely meant to be a message 763437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // send. In that case, fail here and let the ObjC message 764437fbc51c260780af2f639da6af1c1f91e66f2abDouglas Gregor // expression parser perform the completion. 765d48ab06b178e400ac31ef4fe649e9c33d2caf651Douglas Gregor if (Tok.is(tok::code_completion) && 766d48ab06b178e400ac31ef4fe649e9c33d2caf651Douglas Gregor !(getLangOpts().ObjC1 && Intro.Default == LCD_None && 767d48ab06b178e400ac31ef4fe649e9c33d2caf651Douglas Gregor !Intro.Captures.empty())) { 76881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 76981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/false); 7706bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines cutOffParsing(); 77181f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 77281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 77381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 774ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_comma_or_rsquare); 77581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 776ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 777ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 778ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 77981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.is(tok::code_completion)) { 78081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor // If we're in Objective-C++ and we have a bare '[', then this is more 78181f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor // likely to be a message receiver. 7824e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().ObjC1 && first) 78381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteObjCMessageReceiver(getCurScope()); 78481f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor else 78581f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 78681f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/false); 7876bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines cutOffParsing(); 78881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 78981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 790ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 79181f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor first = false; 79281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 793ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse capture. 794ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaCaptureKind Kind = LCK_ByCopy; 795ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation Loc; 7966bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines IdentifierInfo *Id = nullptr; 797a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor SourceLocation EllipsisLoc; 7980a664b863255065d960342dd074a77d63c753d35Richard Smith ExprResult Init; 799a73652465bcc4c0f6cb7d933ad84e002b527a643Douglas Gregor 800ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::kw_this)) { 801ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_This; 802ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 803ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 804ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::amp)) { 805ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Kind = LCK_ByRef; 806ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ConsumeToken(); 80781f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor 80881f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor if (Tok.is(tok::code_completion)) { 80981f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor Actions.CodeCompleteLambdaIntroducer(getCurScope(), Intro, 81081f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor /*AfterAmpersand=*/true); 8116bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines cutOffParsing(); 81281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor break; 81381f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor } 814ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 815ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 816ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::identifier)) { 817ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Id = Tok.getIdentifierInfo(); 818ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Loc = ConsumeToken(); 819ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else if (Tok.is(tok::kw_this)) { 820ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // FIXME: If we want to suggest a fixit here, will need to return more 821ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // than just DiagnosticID. Perhaps full DiagnosticBuilder that can be 822ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Clear()ed to prevent emission in case of tentative parsing? 823ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_this_captured_by_reference); 824ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } else { 825ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(diag::err_expected_capture); 826ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 8270a664b863255065d960342dd074a77d63c753d35Richard Smith 8280a664b863255065d960342dd074a77d63c753d35Richard Smith if (Tok.is(tok::l_paren)) { 8290a664b863255065d960342dd074a77d63c753d35Richard Smith BalancedDelimiterTracker Parens(*this, tok::l_paren); 8300a664b863255065d960342dd074a77d63c753d35Richard Smith Parens.consumeOpen(); 8310a664b863255065d960342dd074a77d63c753d35Richard Smith 8320a664b863255065d960342dd074a77d63c753d35Richard Smith ExprVector Exprs; 8330a664b863255065d960342dd074a77d63c753d35Richard Smith CommaLocsTy Commas; 834440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith if (SkippedInits) { 835440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Parens.skipToEnd(); 836440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith *SkippedInits = true; 837440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } else if (ParseExpressionList(Exprs, Commas)) { 8380a664b863255065d960342dd074a77d63c753d35Richard Smith Parens.skipToEnd(); 8390a664b863255065d960342dd074a77d63c753d35Richard Smith Init = ExprError(); 8400a664b863255065d960342dd074a77d63c753d35Richard Smith } else { 8410a664b863255065d960342dd074a77d63c753d35Richard Smith Parens.consumeClose(); 8420a664b863255065d960342dd074a77d63c753d35Richard Smith Init = Actions.ActOnParenListExpr(Parens.getOpenLocation(), 8430a664b863255065d960342dd074a77d63c753d35Richard Smith Parens.getCloseLocation(), 8440a664b863255065d960342dd074a77d63c753d35Richard Smith Exprs); 8450a664b863255065d960342dd074a77d63c753d35Richard Smith } 8460a664b863255065d960342dd074a77d63c753d35Richard Smith } else if (Tok.is(tok::l_brace) || Tok.is(tok::equal)) { 8472434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // Each lambda init-capture forms its own full expression, which clears 8482434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // Actions.MaybeODRUseExprs. So create an expression evaluation context 8492434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // to save the necessary state, and restore it later. 8502434dcfb022778b06cfd257d830d0249680b87cfBill Wendling EnterExpressionEvaluationContext EC(Actions, 8512434dcfb022778b06cfd257d830d0249680b87cfBill Wendling Sema::PotentiallyEvaluated); 852651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TryConsumeToken(tok::equal); 8530a664b863255065d960342dd074a77d63c753d35Richard Smith 854440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith if (!SkippedInits) 855440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Init = ParseInitializer(); 856440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith else if (Tok.is(tok::l_brace)) { 857440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith BalancedDelimiterTracker Braces(*this, tok::l_brace); 858440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Braces.consumeOpen(); 859440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Braces.skipToEnd(); 860440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith *SkippedInits = true; 861440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } else { 862440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // We're disambiguating this: 863440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // 864440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // [..., x = expr 865440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // 866440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // We need to find the end of the following expression in order to 8676bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines // determine whether this is an Obj-C message send's receiver, a 8686bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines // C99 designator, or a lambda init-capture. 869440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // 870440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Parse the expression to find where it ends, and annotate it back 871440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // onto the tokens. We would have parsed this expression the same way 872440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // in either case: both the RHS of an init-capture and the RHS of an 873440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // assignment expression are parsed as an initializer-clause, and in 874440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // neither case can anything be added to the scope between the '[' and 875440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // here. 876440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // 877440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // FIXME: This is horrible. Adding a mechanism to skip an expression 878440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // would be much cleaner. 879440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // FIXME: If there is a ',' before the next ']' or ':', we can skip to 880440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // that instead. (And if we see a ':' with no matching '?', we can 881440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // classify this as an Obj-C message send.) 882440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith SourceLocation StartLoc = Tok.getLocation(); 883440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith InMessageExpressionRAIIObject MaybeInMessageExpression(*this, true); 884440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Init = ParseInitializer(); 885440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith 886440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith if (Tok.getLocation() != StartLoc) { 887440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Back out the lexing of the token after the initializer. 888440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith PP.RevertCachedTokens(1); 889440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith 890440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Replace the consumed tokens with an appropriate annotation. 891440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Tok.setLocation(StartLoc); 892440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Tok.setKind(tok::annot_primary_expr); 893440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith setExprAnnotation(Tok, Init); 894440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Tok.setAnnotationEndLoc(PP.getLastCachedTokenLocation()); 895440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith PP.AnnotateCachedTokens(Tok); 896440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith 897440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Consume the annotated initializer. 898440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith ConsumeToken(); 899440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } 900440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } 901651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else 902651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines TryConsumeToken(tok::ellipsis, EllipsisLoc); 903ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 9042434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // If this is an init capture, process the initialization expression 9052434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // right away. For lambda init-captures such as the following: 9062434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // const int x = 10; 9072434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // auto L = [i = x+1](int a) { 9082434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // return [j = x+2, 9092434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // &k = x](char b) { }; 9102434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // }; 9112434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // keep in mind that each lambda init-capture has to have: 9122434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // - its initialization expression executed in the context 9132434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // of the enclosing/parent decl-context. 9142434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // - but the variable itself has to be 'injected' into the 9152434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // decl-context of its lambda's call-operator (which has 9162434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // not yet been created). 9172434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // Each init-expression is a full-expression that has to get 9182434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // Sema-analyzed (for capturing etc.) before its lambda's 9192434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // call-operator's decl-context, scope & scopeinfo are pushed on their 9202434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // respective stacks. Thus if any variable is odr-used in the init-capture 9212434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // it will correctly get captured in the enclosing lambda, if one exists. 9222434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // The init-variables above are created later once the lambdascope and 9232434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // call-operators decl-context is pushed onto its respective stack. 9242434dcfb022778b06cfd257d830d0249680b87cfBill Wendling 9252434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // Since the lambda init-capture's initializer expression occurs in the 9262434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // context of the enclosing function or lambda, therefore we can not wait 9272434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // till a lambda scope has been pushed on before deciding whether the 9282434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // variable needs to be captured. We also need to process all 9292434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // lvalue-to-rvalue conversions and discarded-value conversions, 9302434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // so that we can avoid capturing certain constant variables. 9312434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // For e.g., 9322434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // void test() { 9332434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // const int x = 10; 9342434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // auto L = [&z = x](char a) { <-- don't capture by the current lambda 9352434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // return [y = x](int i) { <-- don't capture by enclosing lambda 9362434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // return y; 9372434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // } 9382434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // }; 9392434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // If x was not const, the second use would require 'L' to capture, and 9402434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // that would be an error. 9412434dcfb022778b06cfd257d830d0249680b87cfBill Wendling 9422434dcfb022778b06cfd257d830d0249680b87cfBill Wendling ParsedType InitCaptureParsedType; 9432434dcfb022778b06cfd257d830d0249680b87cfBill Wendling if (Init.isUsable()) { 9442434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // Get the pointer and store it in an lvalue, so we can use it as an 9452434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // out argument. 9462434dcfb022778b06cfd257d830d0249680b87cfBill Wendling Expr *InitExpr = Init.get(); 9472434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // This performs any lvalue-to-rvalue conversions if necessary, which 9482434dcfb022778b06cfd257d830d0249680b87cfBill Wendling // can affect what gets captured in the containing decl-context. 9492434dcfb022778b06cfd257d830d0249680b87cfBill Wendling QualType InitCaptureType = Actions.performLambdaInitCaptureInitialization( 9502434dcfb022778b06cfd257d830d0249680b87cfBill Wendling Loc, Kind == LCK_ByRef, Id, InitExpr); 9512434dcfb022778b06cfd257d830d0249680b87cfBill Wendling Init = InitExpr; 9522434dcfb022778b06cfd257d830d0249680b87cfBill Wendling InitCaptureParsedType.set(InitCaptureType); 9532434dcfb022778b06cfd257d830d0249680b87cfBill Wendling } 9542434dcfb022778b06cfd257d830d0249680b87cfBill Wendling Intro.addCapture(Kind, Loc, Id, EllipsisLoc, Init, InitCaptureParsedType); 955ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 956ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 9574a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 9584a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Intro.Range.setEnd(T.getCloseLocation()); 959ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return DiagResult(); 960ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 961ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 96281f3bff7c202d688c9298bc049fdb5b6f77057b1Douglas Gregor/// TryParseLambdaIntroducer - Tentatively parse a lambda introducer. 963ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// 964ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// Returns true if it hit something unexpected. 965ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregorbool Parser::TryParseLambdaIntroducer(LambdaIntroducer &Intro) { 966ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TentativeParsingAction PA(*this); 967ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 968440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith bool SkippedInits = false; 969440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Optional<unsigned> DiagID(ParseLambdaIntroducer(Intro, &SkippedInits)); 970ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 971ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (DiagID) { 972ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Revert(); 973ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return true; 974ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 975ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 976440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith if (SkippedInits) { 977440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith // Parse it again, but this time parse the init-captures too. 978440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith PA.Revert(); 979440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith Intro = LambdaIntroducer(); 980440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith DiagID = ParseLambdaIntroducer(Intro); 981440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith assert(!DiagID && "parsing lambda-introducer failed on reparse"); 982440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith return false; 983440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith } 984440d456c5cf9613a3ee6a3297f892ddd8da5b8f8Richard Smith 985ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PA.Commit(); 986ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor return false; 987ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 988ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 989ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// ParseLambdaExpressionAfterIntroducer - Parse the rest of a lambda 990ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor/// expression. 991ae7902c4293d9de8b9591759513f0d075f45022aDouglas GregorExprResult Parser::ParseLambdaExpressionAfterIntroducer( 992ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor LambdaIntroducer &Intro) { 993dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman SourceLocation LambdaBeginLoc = Intro.Range.getBegin(); 994dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman Diag(LambdaBeginLoc, diag::warn_cxx98_compat_lambda); 995dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 996dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman PrettyStackTraceLoc CrashInfo(PP.getSourceManager(), LambdaBeginLoc, 997dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman "lambda expression parsing"); 998dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 999fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 1000fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 10010a664b863255065d960342dd074a77d63c753d35Richard Smith // FIXME: Call into Actions to add any init-capture declarations to the 10020a664b863255065d960342dd074a77d63c753d35Richard Smith // scope while parsing the lambda-declarator and compound-statement. 10030a664b863255065d960342dd074a77d63c753d35Richard Smith 1004ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse lambda-declarator[opt]. 1005ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclSpec DS(AttrFactory); 1006f88c400085eac7068399d0a01dbad89f8c579f07Eli Friedman Declarator D(DS, Declarator::LambdaExprContext); 1007fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali TemplateParameterDepthRAII CurTemplateDepthTracker(TemplateParameterDepth); 1008fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Actions.PushLambdaScope(); 1009ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1010ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::l_paren)) { 1011ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseScope PrototypeScope(this, 1012ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::FunctionPrototypeScope | 10133a2b7a18a4504f39e3ded0d2b5749c5c80b8b9b5Richard Smith Scope::FunctionDeclarationScope | 1014ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Scope::DeclScope); 1015ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 101659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation DeclEndLoc; 10174a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 10184a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 101959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation LParenLoc = T.getOpenLocation(); 1020ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1021ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse parameter-declaration-clause. 1022ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParsedAttributes Attr(AttrFactory); 1023cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<DeclaratorChunk::ParamInfo, 16> ParamInfo; 1024ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation EllipsisLoc; 1025fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali 1026fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali if (Tok.isNot(tok::r_paren)) { 1027fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali Actions.RecordParsingTemplateParameterDepth(TemplateParameterDepth); 1028ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParseParameterDeclarationClause(D, Attr, ParamInfo, EllipsisLoc); 1029fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // For a generic lambda, each 'auto' within the parameter declaration 1030fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali // clause creates a template type parameter, so increment the depth. 1031fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali if (Actions.getCurGenericLambda()) 1032fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali ++CurTemplateDepthTracker; 1033fad9e13f3cb85198f0ee5af620ba81cd78574faaFaisal Vali } 10344a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 103559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation RParenLoc = T.getCloseLocation(); 103659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara DeclEndLoc = RParenLoc; 1037ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1038651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // GNU-style attributes must be parsed before the mutable specifier to be 1039651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // compatible with GCC. 1040651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines MaybeParseGNUAttributes(Attr, &DeclEndLoc); 1041651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1042ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse 'mutable'[opt]. 1043ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceLocation MutableLoc; 1044651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (TryConsumeToken(tok::kw_mutable, MutableLoc)) 1045ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = MutableLoc; 1046ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1047ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse exception-specification[opt]. 1048ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExceptionSpecificationType ESpecType = EST_None; 1049ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange ESpecRange; 1050cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<ParsedType, 2> DynamicExceptions; 1051cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<SourceRange, 2> DynamicExceptionRanges; 1052ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ExprResult NoexceptExpr; 1053a058fd4f0a944174295f77169b438510dad389f8Richard Smith ESpecType = tryParseExceptionSpecification(ESpecRange, 105474e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptions, 105574e2fc332e07c76d4e69ccbd0e9e47a0bafd3908Douglas Gregor DynamicExceptionRanges, 1056a058fd4f0a944174295f77169b438510dad389f8Richard Smith NoexceptExpr); 1057ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1058ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (ESpecType != EST_None) 1059ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = ESpecRange.getEnd(); 1060ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1061ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse attribute-specifier[opt]. 10624e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(Attr, &DeclEndLoc); 1063ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 106459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation FunLocalRangeEnd = DeclEndLoc; 106559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara 1066ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse trailing-return-type[opt]. 106754655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TypeResult TrailingReturnType; 1068ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Tok.is(tok::arrow)) { 106959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara FunLocalRangeEnd = Tok.getLocation(); 1070ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor SourceRange Range; 107154655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TrailingReturnType = ParseTrailingReturnType(Range); 1072ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor if (Range.getEnd().isValid()) 1073ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DeclEndLoc = Range.getEnd(); 1074ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 1075ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1076ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor PrototypeScope.Exit(); 1077ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 107859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation NoLoc; 1079ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor D.AddTypeInfo(DeclaratorChunk::getFunction(/*hasProto=*/true, 108059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*isAmbiguous=*/false, 108159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara LParenLoc, 1082ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ParamInfo.data(), ParamInfo.size(), 108359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara EllipsisLoc, RParenLoc, 1084ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DS.getTypeQualifiers(), 1085ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor /*RefQualifierIsLValueRef=*/true, 108659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierLoc=*/NoLoc, 108759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ConstQualifierLoc=*/NoLoc, 108859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*VolatileQualifierLoc=*/NoLoc, 1089ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor MutableLoc, 1090ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor ESpecType, ESpecRange.getBegin(), 1091ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.data(), 1092ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptionRanges.data(), 1093ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor DynamicExceptions.size(), 1094ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor NoexceptExpr.isUsable() ? 10956bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NoexceptExpr.get() : nullptr, 109659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara LParenLoc, FunLocalRangeEnd, D, 1097ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor TrailingReturnType), 1098ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Attr, DeclEndLoc); 1099651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } else if (Tok.is(tok::kw_mutable) || Tok.is(tok::arrow) || 1100651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Tok.is(tok::kw___attribute) || 1101651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines (Tok.is(tok::l_square) && NextToken().is(tok::l_square))) { 1102651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // It's common to forget that one needs '()' before 'mutable', an attribute 1103651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // specifier, or the result type. Deal with this. 1104651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned TokKind = 0; 1105651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines switch (Tok.getKind()) { 1106651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::kw_mutable: TokKind = 0; break; 1107651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::arrow: TokKind = 1; break; 1108651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::kw___attribute: 1109651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::l_square: TokKind = 2; break; 1110651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines default: llvm_unreachable("Unknown token kind"); 1111651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 1112651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1113c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor Diag(Tok, diag::err_lambda_missing_parens) 1114651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << TokKind 1115c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor << FixItHint::CreateInsertion(Tok.getLocation(), "() "); 1116c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceLocation DeclLoc = Tok.getLocation(); 1117c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceLocation DeclEndLoc = DeclLoc; 1118651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1119651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // GNU-style attributes must be parsed before the mutable specifier to be 1120651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // compatible with GCC. 1121651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines ParsedAttributes Attr(AttrFactory); 1122651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines MaybeParseGNUAttributes(Attr, &DeclEndLoc); 1123651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1124c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // Parse 'mutable', if it's there. 1125c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceLocation MutableLoc; 1126c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor if (Tok.is(tok::kw_mutable)) { 1127c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor MutableLoc = ConsumeToken(); 1128c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor DeclEndLoc = MutableLoc; 1129c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor } 1130651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1131651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // Parse attribute-specifier[opt]. 1132651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines MaybeParseCXX11Attributes(Attr, &DeclEndLoc); 1133651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1134c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor // Parse the return type, if there is one. 113554655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TypeResult TrailingReturnType; 1136c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor if (Tok.is(tok::arrow)) { 1137c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor SourceRange Range; 113854655be65585ed6618fdd7a19fa6c70efc321d3aRichard Smith TrailingReturnType = ParseTrailingReturnType(Range); 1139c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor if (Range.getEnd().isValid()) 1140c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor DeclEndLoc = Range.getEnd(); 1141c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor } 1142c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 114359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara SourceLocation NoLoc; 1144c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor D.AddTypeInfo(DeclaratorChunk::getFunction(/*hasProto=*/true, 114559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*isAmbiguous=*/false, 114659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*LParenLoc=*/NoLoc, 11476bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*Params=*/nullptr, 114859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumParams=*/0, 114959c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*EllipsisLoc=*/NoLoc, 115059c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RParenLoc=*/NoLoc, 115159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*TypeQuals=*/0, 115259c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierIsLValueRef=*/true, 115359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*RefQualifierLoc=*/NoLoc, 115459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ConstQualifierLoc=*/NoLoc, 115559c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*VolatileQualifierLoc=*/NoLoc, 115659c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara MutableLoc, 115759c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara EST_None, 115859c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*ESpecLoc=*/NoLoc, 11596bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*Exceptions=*/nullptr, 11606bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*ExceptionRanges=*/nullptr, 116159c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara /*NumExceptions=*/0, 11626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /*NoexceptExpr=*/nullptr, 116359c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara DeclLoc, DeclEndLoc, D, 116459c0a818a79be850f7ae8fdafd57a1710e5b809aAbramo Bagnara TrailingReturnType), 1165c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor Attr, DeclEndLoc); 1166ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 1167c9ecec404fe28d53aa49b3c830d8353e97bea5f2Douglas Gregor 1168ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1169906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman // FIXME: Rename BlockScope -> ClosureScope if we decide to continue using 1170906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman // it. 1171fccfb625e3090e77da9b6a79edcab159c7006685Douglas Gregor unsigned ScopeFlags = Scope::BlockScope | Scope::FnScope | Scope::DeclScope; 1172fccfb625e3090e77da9b6a79edcab159c7006685Douglas Gregor ParseScope BodyScope(this, ScopeFlags); 1173906a7e1c0f272f7e539c82dda01f4644031ce637Eli Friedman 1174ec9ea7200718478e8a976529defbe21942a11c9cEli Friedman Actions.ActOnStartOfLambdaDefinition(Intro, D, getCurScope()); 1175ec9ea7200718478e8a976529defbe21942a11c9cEli Friedman 1176ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor // Parse compound-statement. 1177dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman if (!Tok.is(tok::l_brace)) { 1178ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor Diag(Tok, diag::err_expected_lambda_body); 1179dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman Actions.ActOnLambdaError(LambdaBeginLoc, getCurScope()); 1180dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman return ExprError(); 1181ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor } 1182ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 1183dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman StmtResult Stmt(ParseCompoundStatementBody()); 1184dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman BodyScope.Exit(); 1185dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 1186deeab90783eb28d955add1062b616c030eb2b781Eli Friedman if (!Stmt.isInvalid()) 1187ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return Actions.ActOnLambdaExpr(LambdaBeginLoc, Stmt.get(), getCurScope()); 1188dc3b723d35067e5d13474247b94a10c869cc7e58Eli Friedman 1189deeab90783eb28d955add1062b616c030eb2b781Eli Friedman Actions.ActOnLambdaError(LambdaBeginLoc, getCurScope()); 1190deeab90783eb28d955add1062b616c030eb2b781Eli Friedman return ExprError(); 1191ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor} 1192ae7902c4293d9de8b9591759513f0d075f45022aDouglas Gregor 11935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 11975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 12005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 12015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 120260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXCasts() { 12035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 12046bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines const char *CastName = nullptr; // For error messages 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 1207eb2d1f1c88836bd5382e5d7aa8f6b85148a88b27David Blaikie default: llvm_unreachable("Unknown C++ cast!"); 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 12165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1217ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // Check for "<::" which is parsed as "[:". If found, fix token stream, 1218ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith // diagnose error, suggest fix, and recover parsing. 121978fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith if (Tok.is(tok::l_square) && Tok.getLength() == 2) { 122078fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith Token Next = NextToken(); 122178fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith if (Next.is(tok::colon) && areTokensAdjacent(Tok, Next)) 122278fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith FixDigraph(*this, PP, Tok, Next, Kind, /*AtDigraph*/true); 122378fe3e05a9ea1fc670e5cb0bc54f54e064595e2cRichard Smith } 1224ea698b3f6cad84f7f583282dce3e03e24fe80e98Richard Smith 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 122620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 122831862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the common declaration-specifiers piece. 122931862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 123031862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 123131862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 123231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis // Parse the abstract-declarator, if present. 123331862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 123431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 123531862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis 12365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1238651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (ExpectAndConsume(tok::greater)) 1239651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return ExprError(Diag(LAngleBracketLoc, diag::note_matching) << tok::less); 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12414a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SourceLocation LParenLoc, RParenLoc; 12424a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12444a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, CastName)) 124521e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis return ExprError(); 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 124760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result = ParseExpression(); 12481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 124921e7ad24099965acfa801e4abdd91e3d94106428Argyrios Kyrtzidis // Match the ')'. 12504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 12515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 125231862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis if (!Result.isInvalid() && !DeclaratorInfo.isInvalidType()) 125349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 125431862ba5ea70b1f2c81d03f8a0100b61cd6f06f6Argyrios Kyrtzidis LAngleBracketLoc, DeclaratorInfo, 1255809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor RAngleBracketLoc, 1256ef8225444452a1486bd721f3285301fe84643b00Stephen Hines T.getOpenLocation(), Result.get(), 12574a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 12585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12593fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 12605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 12615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1262c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// ParseCXXTypeid - This handles the C++ typeid expression. 1263c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 1264c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// postfix-expression: [C++ 5.2p1] 1265c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' expression ')' 1266c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 'typeid' '(' type-id ')' 1267c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl/// 126860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXTypeid() { 1269c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl assert(Tok.is(tok::kw_typeid) && "Not 'typeid'!"); 1270c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1271c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl SourceLocation OpLoc = ConsumeToken(); 12724a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SourceLocation LParenLoc, RParenLoc; 12734a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 1274c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1275c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // typeid expressions are always parenthesized. 12764a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, "typeid")) 127720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 12784a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor LParenLoc = T.getOpenLocation(); 1279c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 128060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result; 1281c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 12820576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // C++0x [expr.typeid]p3: 12830576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // When typeid is applied to an expression other than an lvalue of a 12840576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // polymorphic class type [...] The expression is an unevaluated 12850576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // operand (Clause 5). 12860576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // 12870576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // Note that we can't tell whether the expression is an lvalue of a 12880576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // polymorphic class type until after we've parsed the expression; we 12890576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // speculatively assume the subexpression is unevaluated, and fix it up 12900576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // later. 12910576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // 12920576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // We enter the unevaluated context before trying to determine whether we 12930576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // have a type-id, because the tentative parse logic will try to resolve 12940576681bac125be07f77f66b02a3dba2c3a24557Richard Smith // names, and must treat them as unevaluated. 129580bfa3d125fa0b9c636977ea37b4a55b2c9b1037Eli Friedman EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated, 129680bfa3d125fa0b9c636977ea37b4a55b2c9b1037Eli Friedman Sema::ReuseLambdaContextDecl); 12970576681bac125be07f77f66b02a3dba2c3a24557Richard Smith 1298c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl if (isTypeIdInParens()) { 1299809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult Ty = ParseTypeName(); 1300c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1301c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 13024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 13034a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor RParenLoc = T.getCloseLocation(); 13044eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (Ty.isInvalid() || RParenLoc.isInvalid()) 130520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 1306c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1307c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/true, 1308b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Ty.get().getAsOpaquePtr(), RParenLoc); 1309c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } else { 1310c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = ParseExpression(); 1311c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1312c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // Match the ')'. 13130e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Result.isInvalid()) 13148fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 1315c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl else { 13164a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 13174a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor RParenLoc = T.getCloseLocation(); 13184eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor if (RParenLoc.isInvalid()) 13194eb4f0f96289cbece50c1270e02af3caf8779705Douglas Gregor return ExprError(); 1320fadb53b351977ca7f99a9a613596cba6531979a3Douglas Gregor 1321c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl Result = Actions.ActOnCXXTypeid(OpLoc, LParenLoc, /*isType=*/false, 1322ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Result.get(), RParenLoc); 1323c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 1324c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl } 1325c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 13263fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 1327c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl} 1328c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 132901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// ParseCXXUuidof - This handles the Microsoft C++ __uuidof expression. 133001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 133101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' expression ')' 133201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// '__uuidof' '(' type-id ')' 133301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet/// 133401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois PichetExprResult Parser::ParseCXXUuidof() { 133501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet assert(Tok.is(tok::kw___uuidof) && "Not '__uuidof'!"); 133601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 133701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet SourceLocation OpLoc = ConsumeToken(); 13384a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 133901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 134001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // __uuidof expressions are always parenthesized. 13414a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.expectAndConsume(diag::err_expected_lparen_after, "__uuidof")) 134201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 134301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 134401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet ExprResult Result; 134501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 134601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (isTypeIdInParens()) { 134701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet TypeResult Ty = ParseTypeName(); 134801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 134901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 13504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 135101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 135201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Ty.isInvalid()) 135301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet return ExprError(); 135401b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 13554a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCXXUuidof(OpLoc, T.getOpenLocation(), /*isType=*/true, 13564a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Ty.get().getAsOpaquePtr(), 13574a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 135801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } else { 135901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet EnterExpressionEvaluationContext Unevaluated(Actions, Sema::Unevaluated); 136001b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet Result = ParseExpression(); 136101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 136201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // Match the ')'. 136301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet if (Result.isInvalid()) 13648fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 136501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet else { 13664a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 136701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 13684a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCXXUuidof(OpLoc, T.getOpenLocation(), 13694a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor /*isType=*/false, 1370ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Result.get(), T.getCloseLocation()); 137101b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 137201b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet } 137301b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 13743fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 137501b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet} 137601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 1377d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \brief Parse a C++ pseudo-destructor expression after the base, 1378d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// . or -> operator, and nested-name-specifier have already been 1379d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// parsed. 1380d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 1381d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression: [C++ 5.2] 1382d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression . pseudo-destructor-name 1383d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// postfix-expression -> pseudo-destructor-name 1384d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 1385d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// pseudo-destructor-name: 1386d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] type-name :: ~type-name 1387d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier template simple-template-id :: 1388d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ~type-name 1389d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// ::[opt] nested-name-specifier[opt] ~type-name 1390d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 139160d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 1392d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas GregorParser::ParseCXXPseudoDestructor(ExprArg Base, SourceLocation OpLoc, 1393d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor tok::TokenKind OpKind, 1394d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CXXScopeSpec &SS, 1395b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType) { 1396d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // We're parsing either a pseudo-destructor-name or a dependent 1397d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // member access that has the same form as a 1398d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // pseudo-destructor-name. We parse both in the same way and let 1399d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // the action model sort them out. 1400d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // 1401d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Note that the ::[opt] nested-name-specifier[opt] has already 1402d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been parsed, and if there was a simple-template-id, it has 1403d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // been coalesced into a template-id annotation token. 1404d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId FirstTypeName; 1405d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation CCLoc; 1406d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::identifier)) { 1407d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setIdentifier(Tok.getIdentifierInfo(), Tok.getLocation()); 1408d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 1409d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 1410d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 1411d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else if (Tok.is(tok::annot_template_id)) { 1412e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // FIXME: retrieve TemplateKWLoc from template-id annotation and 1413e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara // store it in the pseudo-dtor node (to be used when instantiating it). 1414d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor FirstTypeName.setTemplateId( 1415d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor (TemplateIdAnnotation *)Tok.getAnnotationValue()); 1416d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor ConsumeToken(); 1417d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::coloncolon) &&"ParseOptionalCXXScopeSpecifier fail"); 1418d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CCLoc = ConsumeToken(); 1419d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } else { 14206bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines FirstTypeName.setIdentifier(nullptr, SourceLocation()); 1421d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 1422d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1423d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the tilde. 1424d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor assert(Tok.is(tok::tilde) && "ParseOptionalCXXScopeSpecifier fail"); 1425d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 142691ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie 142791ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie if (Tok.is(tok::kw_decltype) && !FirstTypeName.isValid() && SS.isEmpty()) { 142891ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie DeclSpec DS(AttrFactory); 142985c60db2131c6d210d4777c3d50bdaf0e69bb8bfBenjamin Kramer ParseDecltypeSpecifier(DS); 143091ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie if (DS.getTypeSpecType() == TST_error) 143191ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie return ExprError(); 143291ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, OpLoc, 143391ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie OpKind, TildeLoc, DS, 143491ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie Tok.is(tok::l_paren)); 143591ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie } 143691ec7894ec186dd36f509682f00486c98d8228edDavid Blaikie 1437d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (!Tok.is(tok::identifier)) { 1438d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 1439d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1440d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor } 1441d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1442d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // Parse the second type. 1443d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId SecondTypeName; 1444d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor IdentifierInfo *Name = Tok.getIdentifierInfo(); 1445d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SourceLocation NameLoc = ConsumeToken(); 1446d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SecondTypeName.setIdentifier(Name, NameLoc); 1447d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1448d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // If there is a '<', the second type name is a template-id. Parse 1449d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // it as such. 1450d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (Tok.is(tok::less) && 1451e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ParseUnqualifiedIdTemplateId(SS, SourceLocation(), 1452e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Name, NameLoc, 1453e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara false, ObjectType, SecondTypeName, 1454e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara /*AssumeTemplateName=*/true)) 1455d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor return ExprError(); 1456d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 14579ae2f076ca5ab1feb3ba95629099ec2319833701John McCall return Actions.ActOnPseudoDestructorExpr(getCurScope(), Base, 14589ae2f076ca5ab1feb3ba95629099ec2319833701John McCall OpLoc, OpKind, 1459d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor SS, FirstTypeName, CCLoc, 1460d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor TildeLoc, SecondTypeName, 1461d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor Tok.is(tok::l_paren)); 1462d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor} 1463d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 14645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 14655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 14665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 14675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 14685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 146960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXBoolLiteral() { 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 1471f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 14725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 147350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 147450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 147550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 147650dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 147750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 147860d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseThrowExpression() { 147950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 148050dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 148120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl 14822a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 14832a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 14842a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 14852a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 14862a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 14872a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 14882a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 14892a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 14902a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 14912a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 14926bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, nullptr); 149350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 14942a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 149560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Expr(ParseAssignmentExpression()); 14963fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer if (Expr.isInvalid()) return Expr; 1497ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return Actions.ActOnCXXThrow(getCurScope(), ThrowLoc, Expr.get()); 14982a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 149950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 15004cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 15014cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 15024cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 15034cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 15044cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 15054cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 150660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult Parser::ParseCXXThis() { 15074cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 15084cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 1509f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXThis(ThisLoc); 15104cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 1511987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1512987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 1513987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 1514987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 1515987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 1516dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// See [C++ 5.2.3]. 1517987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1518987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 1519dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// simple-type-specifier '(' expression-list[opt] ')' 1520dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] simple-type-specifier braced-init-list 1521dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// typename-specifier '(' expression-list[opt] ')' 1522dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] typename-specifier braced-init-list 1523987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 152460d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 152520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian RedlParser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 1526987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 1527b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeRep = Actions.ActOnTypeName(getCurScope(), DeclaratorInfo).get(); 1528987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1529dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Tok.is(tok::l_paren) || 153080ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace))) 1531dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl && "Expected '(' or '{'!"); 1532bc61bd8109d9accf8f966b59e3f16a1497e72adfDouglas Gregor 1533dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.is(tok::l_brace)) { 15346dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl ExprResult Init = ParseBraceInitializer(); 15356dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl if (Init.isInvalid()) 15366dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl return Init; 1537ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Expr *InitList = Init.get(); 15386dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl return Actions.ActOnCXXTypeConstructExpr(TypeRep, SourceLocation(), 15396dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl MultiExprArg(&InitList, 1), 15406dc00f6e98a00bd1c332927c3e04918d7e8b0d4fSebastian Redl SourceLocation()); 1541dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } else { 15424a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 15434a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 1544dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 15454e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer ExprVector Exprs; 1546dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl CommaLocsTy CommaLocs; 1547dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl 1548dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (Tok.isNot(tok::r_paren)) { 1549dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (ParseExpressionList(Exprs, CommaLocs)) { 15508fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 1551dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1552dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1553987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1554987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1555dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // Match the ')'. 15564a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 1557987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 1558dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl // TypeRep could be null, if it references an invalid typedef. 1559dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl if (!TypeRep) 1560dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl return ExprError(); 1561ef0cb8e62d090ad88a01ca9fa89e48d7416f0ac7Sebastian Redl 1562dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 1563dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl "Unexpected number of commas!"); 15644a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnCXXTypeConstructExpr(TypeRep, T.getOpenLocation(), 15653fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer Exprs, 15664a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 1567dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl } 1568987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 1569987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 157099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// ParseCXXCondition - if/switch/while condition expression. 157171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 157271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 157371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 157471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 15750635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith/// [C++11] type-specifier-seq declarator '=' initializer-clause 15760635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith/// [C++11] type-specifier-seq declarator braced-init-list 157771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 157871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 157971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 15801ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param ExprOut if the condition was parsed as an expression, the parsed 15811ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// expression. 158299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 15831ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param DeclOut if the condition was parsed as a declaration, the parsed 15841ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// declaration. 158599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// 1586586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param Loc The location of the start of the statement that requires this 1587586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// condition, e.g., the "for" in a for loop. 1588586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 1589586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// \param ConvertToBoolean Whether the condition expression should be 1590586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// converted to a boolean value. 1591586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor/// 159299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor/// \returns true if there was a parsing, false otherwise. 159360d7b3a319d84d688752be3870615ac0f111fb16John McCallbool Parser::ParseCXXCondition(ExprResult &ExprOut, 159460d7b3a319d84d688752be3870615ac0f111fb16John McCall Decl *&DeclOut, 1595586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor SourceLocation Loc, 1596586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor bool ConvertToBoolean) { 159701dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor if (Tok.is(tok::code_completion)) { 1598f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Actions.CodeCompleteOrdinaryName(getCurScope(), Sema::PCC_Condition); 15997d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 16007d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis return true; 160101dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor } 160201dfea02d1da297e8b53db8eea3d3cc652acda8dDouglas Gregor 16032edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ParsedAttributesWithRange attrs(AttrFactory); 16044e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(attrs); 16052edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 160699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor if (!isCXXConditionDeclaration()) { 16072edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt ProhibitAttributes(attrs); 16082edf0a2520313cde900799b1eb9bd11c9c776afeSean Hunt 1609586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // Parse the expression. 161060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ParseExpression(); // expression 16116bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines DeclOut = nullptr; 161260d7b3a319d84d688752be3870615ac0f111fb16John McCall if (ExprOut.isInvalid()) 1613586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor return true; 1614586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 1615586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // If required, convert to a boolean value. 1616586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor if (ConvertToBoolean) 161760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut 161860d7b3a319d84d688752be3870615ac0f111fb16John McCall = Actions.ActOnBooleanCondition(getCurScope(), Loc, ExprOut.get()); 161960d7b3a319d84d688752be3870615ac0f111fb16John McCall return ExprOut.isInvalid(); 162099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 162171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 162271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 16230b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 16246b3d3e54c003b03f16e235ad2ff49e95587bbf92Richard Smith DS.takeAttributesFrom(attrs); 162571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 162671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 162771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 162871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 162971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 163071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 163171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 163271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 1633ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl SourceLocation Loc; 163460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult AsmLabel(ParseSimpleAsm(&Loc)); 16350e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (AsmLabel.isInvalid()) { 16368fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi); 163799e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return true; 163871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 1639ef8225444452a1486bd721f3285301fe84643b00Stephen Hines DeclaratorInfo.setAsmLabel(AsmLabel.get()); 1640ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetRangeEnd(Loc); 164171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 164271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 164371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 16447f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall MaybeParseGNUAttributes(DeclaratorInfo); 164571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 164699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // Type-check the declaration itself. 164760d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclResult Dcl = Actions.ActOnCXXConditionDeclaration(getCurScope(), 16487f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall DeclaratorInfo); 164960d7b3a319d84d688752be3870615ac0f111fb16John McCall DeclOut = Dcl.get(); 165060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprOut = ExprError(); 1651a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 165271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 1653d6c7c67313634b317a0d63c32be0511a121bb33dRichard Trieu // If a '==' or '+=' is found, suggest a fixit to '='. 16540635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith bool CopyInitialization = isTokenEqualOrEqualTypo(); 16550635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith if (CopyInitialization) 1656dec0984fce504a39a7f085774fb67cfd9957be58Jeffrey Yasskin ConsumeToken(); 16570635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith 16580635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith ExprResult InitExpr = ExprError(); 165980ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11 && Tok.is(tok::l_brace)) { 16600635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Diag(Tok.getLocation(), 16610635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith diag::warn_cxx98_compat_generalized_initializer_lists); 16620635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith InitExpr = ParseBraceInitializer(); 16630635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith } else if (CopyInitialization) { 16640635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith InitExpr = ParseAssignmentExpression(); 16650635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith } else if (Tok.is(tok::l_paren)) { 16660635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith // This was probably an attempt to initialize the variable. 16670635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith SourceLocation LParen = ConsumeParen(), RParen = LParen; 16688fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev if (SkipUntil(tok::r_paren, StopAtSemi | StopBeforeMatch)) 16690635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith RParen = ConsumeParen(); 16700635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Diag(DeclOut ? DeclOut->getLocation() : LParen, 16710635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith diag::err_expected_init_in_condition_lparen) 16720635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith << SourceRange(LParen, RParen); 167399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } else { 16740635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith Diag(DeclOut ? DeclOut->getLocation() : Tok.getLocation(), 16750635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith diag::err_expected_init_in_condition); 167699e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor } 16770635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith 16780635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith if (!InitExpr.isInvalid()) 1679ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Actions.AddInitializerToDecl(DeclOut, InitExpr.get(), !CopyInitialization, 1680a2c3646c35dd09d21b74826240aa916545b1873fRichard Smith DS.containsPlaceholderType()); 1681dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith else 1682dc7a4f5d7a7e3b60d4dc4a80338d7a2728540998Richard Smith Actions.ActOnInitializerError(DeclOut); 16830635aa75ab48c9c3b4269d266305aba77b6ec58eRichard Smith 1684586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // FIXME: Build a reference to this declaration? Convert it to bool? 1685586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor // (This is currently handled by Sema). 1686483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith 1687483b9f3bc05c5409e2c6643f1c9d91e21c8ff9d2Richard Smith Actions.FinalizeDeclaration(DeclOut); 1688586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor 168999e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return false; 169071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 169171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 1692987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 1693987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 1694987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 1695987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1696987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 1697eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 1698987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 1699987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 1700987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 1701987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 1702987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 1703987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 1704987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 1705987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 1706987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 1707987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 1708987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 1709987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 1710987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 1711987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 1712987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1713987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 1714987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 1715987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 1716987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 1717987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 1718987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 1719987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 1720987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 1721fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned DiagID; 1722987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 1723651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const clang::PrintingPolicy &Policy = 1724651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Actions.getASTContext().getPrintingPolicy(); 17251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1726987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 172755a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::identifier: // foo::bar 172855a7cefc846765ac7d142a63f773747a20518d71Chris Lattner case tok::coloncolon: // ::foo::bar 1729b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Annotation token should already be formed!"); 17301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump default: 1731b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie llvm_unreachable("Not a simple-type-specifier token!"); 173255a7cefc846765ac7d142a63f773747a20518d71Chris Lattner 1733987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 1734b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner case tok::annot_typename: { 17356952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor if (getTypeAnnotation(Tok)) 17366952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecType(DeclSpec::TST_typename, Loc, PrevSpec, DiagID, 1737651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines getTypeAnnotation(Tok), Policy); 17386952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor else 17396952f1e4256c5b43aee5e98cea4e9b663bd1d413Douglas Gregor DS.SetTypeSpecError(); 17409bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 17419bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 17429bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ConsumeToken(); 17439bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 17449bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C supports syntax of the form 'id<proto1,proto2>' where 'id' 17459bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // is a specific typedef and 'itf<proto1,proto2>' where 'itf' is an 17469bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // Objective-C interface. If we don't have Objective-C or a '<', this is 17479bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor // just a normal reference to a typedef name. 17484e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (Tok.is(tok::less) && getLangOpts().ObjC1) 17499bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor ParseObjCProtocolQualifiers(DS); 17509bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor 1751651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.Finish(Diags, PP, Policy); 17529bd1d8d174a9d15ae343246c8322299248b9e92aDouglas Gregor return; 1753987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 17541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1755987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 1756987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 1757651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec, DiagID, Policy); 1758987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1759987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 1760651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec, DiagID, Policy); 1761338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet break; 1762338d7f7362d18fa9c39c6bb5282b4e20574a9309Francois Pichet case tok::kw___int64: 1763651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecWidth(DeclSpec::TSW_longlong, Loc, PrevSpec, DiagID, Policy); 1764987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1765987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 1766fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec, DiagID); 1767987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1768987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 1769fec54013fcd0eb72642741584ca04c1bc292bef8John McCall DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec, DiagID); 1770987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1771987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 1772651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec, DiagID, Policy); 1773987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1774987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 1775651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec, DiagID, Policy); 1776987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1777987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 1778651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec, DiagID, Policy); 1779987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 17805a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith case tok::kw___int128: 1781651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_int128, Loc, PrevSpec, DiagID, Policy); 17825a5a971908a1fd064454db44c42333a3aecf3d5bRichard Smith break; 1783aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov case tok::kw_half: 1784651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_half, Loc, PrevSpec, DiagID, Policy); 1785aa4a99b4a62615db243f7a5c433169f2fc704420Anton Korobeynikov break; 1786987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 1787651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec, DiagID, Policy); 1788987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1789987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 1790651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec, DiagID, Policy); 1791987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1792987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 1793651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec, DiagID, Policy); 1794987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 1795f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char16_t: 1796651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_char16, Loc, PrevSpec, DiagID, Policy); 1797f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1798f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith case tok::kw_char32_t: 1799651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_char32, Loc, PrevSpec, DiagID, Policy); 1800f5c209d23b20ada4a9b6235db50317239cbf6ae1Alisdair Meredith break; 1801987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 1802651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec, DiagID, Policy); 1803987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 18045e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie case tok::annot_decltype: 18055e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie case tok::kw_decltype: 18065e089fe1affb63d670ea02010b104bd9fa3477a1David Blaikie DS.SetRangeEnd(ParseDecltypeSpecifier(DS)); 1807651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return DS.Finish(Diags, PP, Policy); 18081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1809987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 1810987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 1811987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 1812651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.Finish(Diags, PP, Policy); 1813987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 1814987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 1815b31757b68afe06ba442a05775d08fe7aa0f6f889Chris Lattner if (Tok.is(tok::annot_typename)) 1816eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 1817eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 1818eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 1819987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 1820651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.Finish(Diags, PP, Policy); 1821987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 18221cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 18232f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 18242f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 18252f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 18262f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 18272f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 18282f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 18292f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 18302f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 18312f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 18322f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 18332f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 18342f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 183569730c115c2d0fec2f20609d905d920a5a41b29bRichard Smith ParseSpecifierQualifierList(DS, AS_none, DSC_type_specifier); 1836651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DS.Finish(Diags, PP, Actions.getASTContext().getPrintingPolicy()); 18372f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 18382f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 18392f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 18403f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \brief Finish parsing a C++ unqualified-id that is a template-id of 18413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// some form. 18423f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18433f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// This routine is invoked when a '<' is encountered after an identifier or 18443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id is parsed by \c ParseUnqualifiedId() to determine 18453f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// whether the unqualified-id is actually a template-id. This routine will 18463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// then parse the template arguments and form the appropriate template-id to 18473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// return to the caller. 18483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param SS the nested-name-specifier that precedes this template-id, if 18503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// we're actually parsing a qualified-id. 18513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Name for constructor and destructor names, this is the actual 18533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// identifier that may be a template-name. 18543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param NameLoc the location of the class-name in a constructor or 18563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// destructor. 18573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 18583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we're entering the scope of the 18593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 18603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 186146df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 186246df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 186346df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 18643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Id as input, describes the template-name or operator-function-id 18653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// that precedes the '<'. If template arguments were parsed successfully, 18663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// will be updated with the template-id. 18673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 1868d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// \param AssumeTemplateId When true, this routine will assume that the name 1869d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// refers to a template without performing name lookup to verify. 1870d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor/// 18713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if a parse error occurred, false otherwise. 18723f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedIdTemplateId(CXXScopeSpec &SS, 1873e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation TemplateKWLoc, 18743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Name, 18753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation NameLoc, 18763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool EnteringContext, 1877b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1878d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId &Id, 1879e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara bool AssumeTemplateId) { 18800278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor assert((AssumeTemplateId || Tok.is(tok::less)) && 18810278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor "Expected '<' to finish parsing a template-id"); 18823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 18833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateTy Template; 18843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateNameKind TNK = TNK_Non_template; 18853f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor switch (Id.getKind()) { 18863f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor case UnqualifiedId::IK_Identifier: 1887014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_OperatorFunctionId: 1888e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt case UnqualifiedId::IK_LiteralOperatorId: 1889d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor if (AssumeTemplateId) { 1890e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), SS, TemplateKWLoc, 1891d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Id, ObjectType, EnteringContext, 1892d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor Template); 1893d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 1894d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor return true; 18951fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } else { 18961fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 18977c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, 18987c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateKWLoc.isValid(), Id, 18997c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara ObjectType, EnteringContext, Template, 19001fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 19011fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor 19021fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (TNK == TNK_Non_template && MemberOfUnknownSpecialization && 19031fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor ObjectType && IsTemplateArgumentList()) { 19041fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // We have something like t->getAs<T>(), where getAs is a 19051fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // member of an unknown specialization. However, this will only 19061fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // parse correctly as a template, so suggest the keyword 'template' 19071fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor // before 'getAs' and treat this as a dependent template name. 19081fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor std::string Name; 19091fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) 19101fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = Id.Identifier->getName(); 19111fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else { 19121fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name = "operator "; 19131fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor if (Id.getKind() == UnqualifiedId::IK_OperatorFunctionId) 19141fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += getOperatorSpelling(Id.OperatorFunctionId.Operator); 19151fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor else 19161fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Name += Id.Identifier->getName(); 19171fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 19181fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor Diag(Id.StartLocation, diag::err_missing_dependent_template_keyword) 19191fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << Name 19201fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor << FixItHint::CreateInsertion(Id.StartLocation, "template "); 1921e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), 1922e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, Id, 1923e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 1924e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template); 1925d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 19261fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor return true; 19271fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 19281fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor } 19293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 19303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1931014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_ConstructorName: { 1932014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 19331fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1934014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 19357c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 19367c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 19371fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 19381fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 19393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1940014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 19413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1942014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor case UnqualifiedId::IK_DestructorName: { 1943014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor UnqualifiedId TemplateName; 19441fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor bool MemberOfUnknownSpecialization; 1945014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateName.setIdentifier(Name, NameLoc); 19462d1c21414199a7452f122598189363a3922605b1Douglas Gregor if (ObjectType) { 1947e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TNK = Actions.ActOnDependentTemplateName(getCurScope(), 1948e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SS, TemplateKWLoc, TemplateName, 1949e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ObjectType, EnteringContext, 1950e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Template); 1951d6ab232bb3ec9847de5af06249afb63078b5f2eeDouglas Gregor if (TNK == TNK_Non_template) 19522d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 19532d1c21414199a7452f122598189363a3922605b1Douglas Gregor } else { 19547c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TNK = Actions.isTemplateName(getCurScope(), SS, TemplateKWLoc.isValid(), 19557c15353ccaed24f2df932571166bf305c1b98b6dAbramo Bagnara TemplateName, ObjectType, 19561fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor EnteringContext, Template, 19571fd6d44d7ca97631497551bbf98866263143d706Douglas Gregor MemberOfUnknownSpecialization); 19582d1c21414199a7452f122598189363a3922605b1Douglas Gregor 1959b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall if (TNK == TNK_Non_template && !Id.DestructorName.get()) { 1960124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(NameLoc, diag::err_destructor_template_id) 1961124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor << Name << SS.getRange(); 19622d1c21414199a7452f122598189363a3922605b1Douglas Gregor return true; 19632d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 19642d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 19653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor break; 1966014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor } 19673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor default: 19693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 19703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 19713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19723f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (TNK == TNK_Non_template) 19733f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 19743f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the enclosed template argument list. 19763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation LAngleLoc, RAngleLoc; 19773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgList TemplateArgs; 19780278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (Tok.is(tok::less) && 19790278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor ParseTemplateIdAfterTemplateName(Template, Id.StartLocation, 1980059101f922de6eb765601459925f4c8914420b23Douglas Gregor SS, true, LAngleLoc, 19813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateArgs, 19823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor RAngleLoc)) 19833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 19843f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 19853f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier || 1986e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_OperatorFunctionId || 1987e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Id.getKind() == UnqualifiedId::IK_LiteralOperatorId) { 19883f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Form a parsed representation of the template-id to be stored in the 19893f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // UnqualifiedId. 19903f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateIdAnnotation *TemplateId 199113bb701f2f876356400a34b0917a417c66b5d70dBenjamin Kramer = TemplateIdAnnotation::Allocate(TemplateArgs.size(), TemplateIds); 19923f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 1993651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines // FIXME: Store name for literal operator too. 19943f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_Identifier) { 19953f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Name = Id.Identifier; 1996014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = OO_None; 19973f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 19983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 19996bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TemplateId->Name = nullptr; 2000014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->Operator = Id.OperatorFunctionId.Operator; 2001014e88d94ff83e3aad4e33b16413a2d1817ec208Douglas Gregor TemplateId->TemplateNameLoc = Id.StartLocation; 20023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 20033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 2004059101f922de6eb765601459925f4c8914420b23Douglas Gregor TemplateId->SS = SS; 20052b28bf1a8fa6e1c598805374f29e4fbf45e751feBenjamin Kramer TemplateId->TemplateKWLoc = TemplateKWLoc; 20062b5289b6fd7e3d9899868410a498c081c9595662John McCall TemplateId->Template = Template; 20073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->Kind = TNK; 20083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->LAngleLoc = LAngleLoc; 20093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor TemplateId->RAngleLoc = RAngleLoc; 2010314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor ParsedTemplateArgument *Args = TemplateId->getTemplateArgs(); 20113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor for (unsigned Arg = 0, ArgEnd = TemplateArgs.size(); 2012314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor Arg != ArgEnd; ++Arg) 20133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Args[Arg] = TemplateArgs[Arg]; 20143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20153f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setTemplateId(TemplateId); 20163f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 20173f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 20183f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20193f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Bundle the template arguments together. 20205354e77e60e82828c7c2361f5c688c2667ab59ccBenjamin Kramer ASTTemplateArgsPtr TemplateArgsPtr(TemplateArgs); 2021fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara 20223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Constructor and destructor names. 2023f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Type 202455d23c925b058be29b792008ddb7d68f6c4fa9a0Abramo Bagnara = Actions.ActOnTemplateIdType(SS, TemplateKWLoc, 202555d23c925b058be29b792008ddb7d68f6c4fa9a0Abramo Bagnara Template, NameLoc, 2026fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara LAngleLoc, TemplateArgsPtr, RAngleLoc, 2027fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true); 20283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Type.isInvalid()) 20293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 20303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Id.getKind() == UnqualifiedId::IK_ConstructorName) 20323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setConstructorName(Type.get(), NameLoc, RAngleLoc); 20333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor else 20343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Id.setDestructorName(Id.StartLocation, Type.get(), RAngleLoc); 20353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 20363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 20373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 20383f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 2039ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse an operator-function-id or conversion-function-id as part 2040ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// of a C++ unqualified-id. 20413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 2042ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// This routine is responsible only for parsing the operator-function-id or 2043ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id; it does not handle template arguments in any way. 20443f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 2045ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 20463f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator-function-id: [C++ 13.5] 20473f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 'operator' operator 20483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 2049ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator: one of 20503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// new delete new[] delete[] 20513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// + - * / % ^ & | ~ 20523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ! = < > += -= *= /= %= 20533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ^= &= |= << >> >>= <<= == != 20543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// <= >= && || ++ -- , ->* -> 20553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// () [] 20563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 20573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-function-id: [C++ 12.3.2] 20583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// operator conversion-type-id 20593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 20603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-type-id: 20613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// type-specifier-seq conversion-declarator[opt] 20623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 20633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// conversion-declarator: 20643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// ptr-operator conversion-declarator[opt] 20653f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \endcode 20663f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 20671ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param SS The nested-name-specifier that preceded this unqualified-id. If 20683f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 20693f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 20703f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param EnteringContext whether we are entering the scope of the 20713f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// nested-name-specifier. 20723f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 2073ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 2074ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// expression, the type of the base object whose member is being accessed. 2075ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2076ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 2077ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2078ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \returns true if parsing fails, false otherwise. 2079ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregorbool Parser::ParseUnqualifiedIdOperator(CXXScopeSpec &SS, bool EnteringContext, 2080b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 2081ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId &Result) { 2082ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 2083ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2084ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'operator' keyword. 2085ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation KeywordLoc = ConsumeToken(); 2086ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2087ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Determine what kind of operator name we have. 2088ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor unsigned SymbolIdx = 0; 2089ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SourceLocation SymbolLocations[3]; 2090ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor OverloadedOperatorKind Op = OO_None; 2091ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor switch (Tok.getKind()) { 2092ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_new: 2093ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::kw_delete: { 2094ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor bool isNew = Tok.getKind() == tok::kw_new; 2095ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Consume the 'new' or 'delete'. 2096ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); 20976ee326af4e77e6f05973486097884d7431f2108dRichard Smith // Check for array new/delete. 20986ee326af4e77e6f05973486097884d7431f2108dRichard Smith if (Tok.is(tok::l_square) && 209980ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith (!getLangOpts().CPlusPlus11 || NextToken().isNot(tok::l_square))) { 21004a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '[' and ']'. 21014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 21024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 21034a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 21044a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 2105ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2106ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 21074a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 21084a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 2109ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_Array_New : OO_Array_Delete; 2110ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } else { 2111ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = isNew? OO_New : OO_Delete; 2112ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2113ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2114ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2115ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2116ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 2117ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::Token: \ 2118ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor SymbolLocations[SymbolIdx++] = ConsumeToken(); \ 2119ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_##Name; \ 2120ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2121ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 2122ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor#include "clang/Basic/OperatorKinds.def" 2123ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2124ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_paren: { 21254a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '(' and ')'. 21264a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 21274a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 21284a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 21294a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 2130ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2131ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 21324a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 21334a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 2134ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Call; 2135ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2136ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2137ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2138ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::l_square: { 21394a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor // Consume the '[' and ']'. 21404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 21414a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 21424a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 21434a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 2144ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2145ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 21464a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getOpenLocation(); 21474a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor SymbolLocations[SymbolIdx++] = T.getCloseLocation(); 2148ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Op = OO_Subscript; 2149ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2150ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2151ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2152ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor case tok::code_completion: { 2153ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Code completion for the operator name. 215423c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.CodeCompleteOperatorName(getCurScope()); 21557d100872341f233c81e1d7b72b40457e62c36862Argyrios Kyrtzidis cutOffParsing(); 2156ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Don't try to parse any further. 2157ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2158ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2159ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2160ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor default: 2161ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor break; 2162ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 2163ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2164ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Op != OO_None) { 2165ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // We have parsed an operator-function-id. 2166ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setOperatorFunctionId(KeywordLoc, Op, SymbolLocations); 2167ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 2168ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor } 21690486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 21700486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // Parse a literal-operator-id. 21710486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt // 2172aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // literal-operator-id: C++11 [over.literal] 2173aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // operator string-literal identifier 2174aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // operator user-defined-string-literal 21750486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 217680ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith if (getLangOpts().CPlusPlus11 && isTokenStringLiteral()) { 21777fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok.getLocation(), diag::warn_cxx98_compat_literal_operator); 217833762775706e81c17ca774102ceda36049ecc593Richard Smith 217933762775706e81c17ca774102ceda36049ecc593Richard Smith SourceLocation DiagLoc; 218033762775706e81c17ca774102ceda36049ecc593Richard Smith unsigned DiagId = 0; 218133762775706e81c17ca774102ceda36049ecc593Richard Smith 218233762775706e81c17ca774102ceda36049ecc593Richard Smith // We're past translation phase 6, so perform string literal concatenation 218333762775706e81c17ca774102ceda36049ecc593Richard Smith // before checking for "". 2184cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<Token, 4> Toks; 2185cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<SourceLocation, 4> TokLocs; 218633762775706e81c17ca774102ceda36049ecc593Richard Smith while (isTokenStringLiteral()) { 218733762775706e81c17ca774102ceda36049ecc593Richard Smith if (!Tok.is(tok::string_literal) && !DiagId) { 2188aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // C++11 [over.literal]p1: 2189aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // The string-literal or user-defined-string-literal in a 2190aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // literal-operator-id shall have no encoding-prefix [...]. 219133762775706e81c17ca774102ceda36049ecc593Richard Smith DiagLoc = Tok.getLocation(); 219233762775706e81c17ca774102ceda36049ecc593Richard Smith DiagId = diag::err_literal_operator_string_prefix; 219333762775706e81c17ca774102ceda36049ecc593Richard Smith } 219433762775706e81c17ca774102ceda36049ecc593Richard Smith Toks.push_back(Tok); 219533762775706e81c17ca774102ceda36049ecc593Richard Smith TokLocs.push_back(ConsumeStringToken()); 219699831e4677a7e2e051af636221694d60ba31fcdbRichard Smith } 21970486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 2198ef8225444452a1486bd721f3285301fe84643b00Stephen Hines StringLiteralParser Literal(Toks, PP); 219933762775706e81c17ca774102ceda36049ecc593Richard Smith if (Literal.hadError) 220033762775706e81c17ca774102ceda36049ecc593Richard Smith return true; 220133762775706e81c17ca774102ceda36049ecc593Richard Smith 220233762775706e81c17ca774102ceda36049ecc593Richard Smith // Grab the literal operator's suffix, which will be either the next token 220333762775706e81c17ca774102ceda36049ecc593Richard Smith // or a ud-suffix from the string literal. 22046bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines IdentifierInfo *II = nullptr; 220533762775706e81c17ca774102ceda36049ecc593Richard Smith SourceLocation SuffixLoc; 220633762775706e81c17ca774102ceda36049ecc593Richard Smith if (!Literal.getUDSuffix().empty()) { 220733762775706e81c17ca774102ceda36049ecc593Richard Smith II = &PP.getIdentifierTable().get(Literal.getUDSuffix()); 220833762775706e81c17ca774102ceda36049ecc593Richard Smith SuffixLoc = 220933762775706e81c17ca774102ceda36049ecc593Richard Smith Lexer::AdvanceToTokenCharacter(TokLocs[Literal.getUDSuffixToken()], 221033762775706e81c17ca774102ceda36049ecc593Richard Smith Literal.getUDSuffixOffset(), 22114e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie PP.getSourceManager(), getLangOpts()); 221233762775706e81c17ca774102ceda36049ecc593Richard Smith } else if (Tok.is(tok::identifier)) { 221333762775706e81c17ca774102ceda36049ecc593Richard Smith II = Tok.getIdentifierInfo(); 221433762775706e81c17ca774102ceda36049ecc593Richard Smith SuffixLoc = ConsumeToken(); 221533762775706e81c17ca774102ceda36049ecc593Richard Smith TokLocs.push_back(SuffixLoc); 221633762775706e81c17ca774102ceda36049ecc593Richard Smith } else { 2217651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(Tok.getLocation(), diag::err_expected) << tok::identifier; 22180486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt return true; 22190486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 22200486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt 222133762775706e81c17ca774102ceda36049ecc593Richard Smith // The string literal must be empty. 222233762775706e81c17ca774102ceda36049ecc593Richard Smith if (!Literal.GetString().empty() || Literal.Pascal) { 2223aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // C++11 [over.literal]p1: 2224aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // The string-literal or user-defined-string-literal in a 2225aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // literal-operator-id shall [...] contain no characters 2226aa9a8ce5d31975900c7243b1508f5111baddacbeRichard Smith // other than the implicit terminating '\0'. 222733762775706e81c17ca774102ceda36049ecc593Richard Smith DiagLoc = TokLocs.front(); 222833762775706e81c17ca774102ceda36049ecc593Richard Smith DiagId = diag::err_literal_operator_string_not_empty; 222933762775706e81c17ca774102ceda36049ecc593Richard Smith } 223033762775706e81c17ca774102ceda36049ecc593Richard Smith 223133762775706e81c17ca774102ceda36049ecc593Richard Smith if (DiagId) { 223233762775706e81c17ca774102ceda36049ecc593Richard Smith // This isn't a valid literal-operator-id, but we think we know 223333762775706e81c17ca774102ceda36049ecc593Richard Smith // what the user meant. Tell them what they should have written. 2234cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallString<32> Str; 223533762775706e81c17ca774102ceda36049ecc593Richard Smith Str += "\"\" "; 223633762775706e81c17ca774102ceda36049ecc593Richard Smith Str += II->getName(); 223733762775706e81c17ca774102ceda36049ecc593Richard Smith Diag(DiagLoc, DiagId) << FixItHint::CreateReplacement( 223833762775706e81c17ca774102ceda36049ecc593Richard Smith SourceRange(TokLocs.front(), TokLocs.back()), Str); 223933762775706e81c17ca774102ceda36049ecc593Richard Smith } 224033762775706e81c17ca774102ceda36049ecc593Richard Smith 224133762775706e81c17ca774102ceda36049ecc593Richard Smith Result.setLiteralOperatorId(II, KeywordLoc, SuffixLoc); 2242651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2243651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return Actions.checkLiteralOperatorId(SS, Result); 22440486d746019f8310589b1f0d92edcc4bb3916b33Sean Hunt } 2245651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2246ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse a conversion-function-id. 2247ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2248ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-function-id: [C++ 12.3.2] 2249ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator conversion-type-id 2250ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2251ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-type-id: 2252ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // type-specifier-seq conversion-declarator[opt] 2253ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2254ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // conversion-declarator: 2255ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operator conversion-declarator[opt] 2256ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2257ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the type-specifier-seq. 22580b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 2259f6e6fc801c700c7b8ac202ddbe550d9843a816fcDouglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) // FIXME: ObjectType? 2260ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2261ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2262ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 2263ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // ptr-operators. 226414f78f4a11df4c06667e2cbb87eeb179e4cb46feRichard Smith Declarator D(DS, Declarator::ConversionIdContext); 22656bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ParseDeclaratorInternal(D, /*DirectDeclParser=*/nullptr); 22666bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 2267ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Finish up the type. 2268f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall TypeResult Ty = Actions.ActOnTypeName(getCurScope(), D); 2269ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (Ty.isInvalid()) 2270ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return true; 2271ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2272ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // Note that this is a conversion-function-id. 2273ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor Result.setConversionFunctionId(KeywordLoc, Ty.get(), 2274ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor D.getSourceRange().getEnd()); 2275ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor return false; 2276ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor} 2277ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor 2278ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \brief Parse a C++ unqualified-id (or a C identifier), which describes the 2279ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// name of an entity. 2280ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2281ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \code 2282ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// unqualified-id: [C++ expr.prim.general] 2283ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// identifier 2284ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// operator-function-id 2285ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// conversion-function-id 2286ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// [C++0x] literal-operator-id [TODO] 2287ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// ~ class-name 2288ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// template-id 2289ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2290ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \endcode 2291ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 22921ddbd89bb397988dd1a4e96d8d8c2c7705a2af75Dmitri Gribenko/// \param SS The nested-name-specifier that preceded this unqualified-id. If 2293ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// non-empty, then we are parsing the unqualified-id of a qualified-id. 2294ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 2295ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// \param EnteringContext whether we are entering the scope of the 2296ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// nested-name-specifier. 2297ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor/// 22983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowDestructorName whether we allow parsing of a destructor name. 22993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 23003f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param AllowConstructorName whether we allow parsing a constructor name. 23013f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 230246df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// \param ObjectType if this unqualified-id occurs within a member access 230346df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// expression, the type of the base object whose member is being accessed. 230446df8cc349096f141c841dbffaa72641ff1dd94bDouglas Gregor/// 23053f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \param Result on a successful parse, contains the parsed unqualified-id. 23063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// 23073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor/// \returns true if parsing fails, false otherwise. 23083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregorbool Parser::ParseUnqualifiedId(CXXScopeSpec &SS, bool EnteringContext, 23093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowDestructorName, 23103f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool AllowConstructorName, 2311b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 2312e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara SourceLocation& TemplateKWLoc, 23133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor UnqualifiedId &Result) { 23140278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 23150278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // Handle 'A::template B'. This is for template-ids which have not 23160278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor // already been annotated by ParseOptionalCXXScopeSpecifier(). 23170278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor bool TemplateSpecified = false; 23184e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && Tok.is(tok::kw_template) && 23190278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (ObjectType || SS.isSet())) { 23200278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateSpecified = true; 23210278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor TemplateKWLoc = ConsumeToken(); 23220278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor } 23230278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor 23243f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 23253f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // identifier 23263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (when it hasn't already been annotated) 23273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::identifier)) { 23283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Consume the identifier. 23293f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Id = Tok.getIdentifierInfo(); 23303f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation IdLoc = ConsumeToken(); 23313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23324e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (!getLangOpts().CPlusPlus) { 2333b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // If we're not in C++, only identifiers matter. Record the 2334b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor // identifier and return. 2335b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor Result.setIdentifier(Id, IdLoc); 2336b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor return false; 2337b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor } 2338b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor 23393f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (AllowConstructorName && 234023c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*Id, getCurScope(), &SS)) { 23413f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed a constructor name. 2342fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType Ty = Actions.getTypeName(*Id, IdLoc, getCurScope(), 2343fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara &SS, false, false, 2344fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType(), 2345fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true, 2346fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*NonTrivialTypeSourceInfo=*/true); 2347fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara Result.setConstructorName(Ty, IdLoc, IdLoc); 23483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } else { 23493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have parsed an identifier. 23503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setIdentifier(Id, IdLoc); 23513f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 23523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // If the next token is a '<', we may have a template. 23540278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) 2355e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, Id, IdLoc, 2356e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2357e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 23583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23593f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 23603f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 23613f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 23623f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 23633f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // template-id (already parsed and annotated) 23643f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::annot_template_id)) { 236525a767651d14db87aa03dd5fe3e011d877dd4100Argyrios Kyrtzidis TemplateIdAnnotation *TemplateId = takeTemplateIdAnnotation(Tok); 23660efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 23670efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // If the template-name names the current class, then this is a constructor 23680efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (AllowConstructorName && TemplateId->Name && 236923c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Actions.isCurrentClassName(*TemplateId->Name, getCurScope(), &SS)) { 23700efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor if (SS.isSet()) { 23710efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // C++ [class.qual]p2 specifies that a qualified template-name 23720efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // is taken as the constructor name where a constructor can be 23730efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // declared. Thus, the template arguments are extraneous, so 23740efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor // complain about them and remove them entirely. 23750efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Diag(TemplateId->TemplateNameLoc, 23760efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor diag::err_out_of_line_constructor_template_id) 23770efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor << TemplateId->Name 2378849b243d4065f56742a4677d6dc8277609a151f8Douglas Gregor << FixItHint::CreateRemoval( 23790efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor SourceRange(TemplateId->LAngleLoc, TemplateId->RAngleLoc)); 2380fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType Ty = Actions.getTypeName(*TemplateId->Name, 2381fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara TemplateId->TemplateNameLoc, 2382fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara getCurScope(), 2383fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara &SS, false, false, 2384fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara ParsedType(), 2385fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*IsCtorOrDtorName=*/true, 2386fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara /*NontrivialTypeSourceInfo=*/true); 2387fad03b75e0297546c5d12ec420b5b79d5b7baa2aAbramo Bagnara Result.setConstructorName(Ty, TemplateId->TemplateNameLoc, 23880efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor TemplateId->RAngleLoc); 23890efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 23900efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 23910efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 23920efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 23930efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setConstructorTemplateId(TemplateId); 23940efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor ConsumeToken(); 23950efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor return false; 23960efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor } 23970efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 23983f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // We have already parsed a template-id; consume the annotation token as 23993f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // our unqualified-id. 24000efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor Result.setTemplateId(TemplateId); 2401e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara TemplateKWLoc = TemplateId->TemplateKWLoc; 24023f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor ConsumeToken(); 24033f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 24043f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 24053f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 24063f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unqualified-id: 24073f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // operator-function-id 24083f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // conversion-function-id 24093f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.is(tok::kw_operator)) { 2410ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor if (ParseUnqualifiedIdOperator(SS, EnteringContext, ObjectType, Result)) 24113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 24123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 2413e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // If we have an operator-function-id or a literal-operator-id and the next 2414e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt // token is a '<', we may have a 2415ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // 2416ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // template-id: 2417ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor // operator-function-id < template-argument-list[opt] > 2418e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt if ((Result.getKind() == UnqualifiedId::IK_OperatorFunctionId || 2419e6252d1587f98dbac704178e7b2ce53116048310Sean Hunt Result.getKind() == UnqualifiedId::IK_LiteralOperatorId) && 24200278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor (TemplateSpecified || Tok.is(tok::less))) 2421e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, 24226bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines nullptr, SourceLocation(), 2423e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2424e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 24256bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 24263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 24273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 24283f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 24294e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie if (getLangOpts().CPlusPlus && 2430b862b8f93424a583fc912ab37bbbac1c231e852eDouglas Gregor (AllowDestructorName || SS.isSet()) && Tok.is(tok::tilde)) { 24313f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // C++ [expr.unary.op]p10: 24323f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // There is an ambiguity in the unary-expression ~X(), where X is a 24333f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // class-name. The ambiguity is resolved in favor of treating ~ as a 24343f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // unary complement rather than treating ~X as referring to a destructor. 24353f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 24363f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the '~'. 24373f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation TildeLoc = ConsumeToken(); 243853a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie 243953a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie if (SS.isEmpty() && Tok.is(tok::kw_decltype)) { 244053a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie DeclSpec DS(AttrFactory); 244153a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie SourceLocation EndLoc = ParseDecltypeSpecifier(DS); 244253a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie if (ParsedType Type = Actions.getDestructorType(DS, ObjectType)) { 244353a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie Result.setDestructorName(TildeLoc, Type, EndLoc); 244453a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie return false; 244553a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie } 244653a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie return true; 244753a75c07dbe79b3dd5dd88a0378aefa18f793083David Blaikie } 24483f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 24493f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name. 24503f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor if (Tok.isNot(tok::identifier)) { 2451124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor Diag(Tok, diag::err_destructor_tilde_identifier); 24523f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 24533f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 24543f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 24553f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Parse the class-name (or template-name in a simple-template-id). 24563f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *ClassName = Tok.getIdentifierInfo(); 24573f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation ClassNameLoc = ConsumeToken(); 24583f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 24590278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor if (TemplateSpecified || Tok.is(tok::less)) { 2460b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Result.setDestructorName(TildeLoc, ParsedType(), ClassNameLoc); 2461e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara return ParseUnqualifiedIdTemplateId(SS, TemplateKWLoc, 2462e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara ClassName, ClassNameLoc, 2463e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara EnteringContext, ObjectType, 2464e4b92761b43ced611c417ae478568610f1ad7b1eAbramo Bagnara Result, TemplateSpecified); 24652d1c21414199a7452f122598189363a3922605b1Douglas Gregor } 24662d1c21414199a7452f122598189363a3922605b1Douglas Gregor 24673f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor // Note that this is a destructor name. 2468b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType Ty = Actions.getDestructorName(TildeLoc, *ClassName, 2469b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ClassNameLoc, getCurScope(), 2470b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall SS, ObjectType, 2471b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall EnteringContext); 2472124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor if (!Ty) 24733f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 2474124b878dba5007df0a268ea128a6ad8dc5dd2c5eDouglas Gregor 24753f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor Result.setDestructorName(TildeLoc, Ty, ClassNameLoc); 24763f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return false; 24773f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor } 24783f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 24792d1c21414199a7452f122598189363a3922605b1Douglas Gregor Diag(Tok, diag::err_expected_unqualified_id) 24804e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie << getLangOpts().CPlusPlus; 24813f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor return true; 24823f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor} 24833f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 24844c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXNewExpression - Parse a C++ new-expression. New is used to allocate 24854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// memory in a typesafe manner and call constructors. 24861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 248759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the new expression after the optional :: has 248859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// been already parsed. If the :: was present, "UseGlobal" is true and "Start" 248959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// is its location. Otherwise, "Start" is the location of the 'new' token. 24904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 24914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 24924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] new-type-id 24934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 24944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 24954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 24964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 24974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 24984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 24994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 2500cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-type-id: 2501cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// type-specifier-seq new-declarator[opt] 2502893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor/// [GNU] attributes type-specifier-seq new-declarator[opt] 2503cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 2504cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// new-declarator: 2505cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// ptr-operator new-declarator[opt] 2506cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// direct-new-declarator 2507cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl/// 25084c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer: 25094c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list[opt] ')' 2510dbef1bb8a8118b7b73e184e08fccfe0eaf914ddaSebastian Redl/// [C++0x] braced-init-list 25114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 251260d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 251359232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXNewExpression(bool UseGlobal, SourceLocation Start) { 251459232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_new) && "expected 'new' token"); 251559232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'new' 25164c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // A '(' now can be a new-placement or the '(' wrapping the type-id in the 25184c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // second form of new-expression. It can't be a new-type-id. 25194c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25204e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer ExprVector PlacementArgs; 25214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl SourceLocation PlacementLParen, PlacementRParen; 25224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25234bd40318cbea15310a37343db46de96c4fcc15e6Douglas Gregor SourceRange TypeIdParens; 25240b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall DeclSpec DS(AttrFactory); 25250b8c98f3ddf83adcb9e9d98b68ce38e970cdee73Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::CXXNewContext); 25264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 25274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // If it turns out to be a placement, we change the type location. 25284a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 25294a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 25304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor PlacementLParen = T.getOpenLocation(); 2531cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionListOrTypeId(PlacementArgs, DeclaratorInfo)) { 25328fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 253320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2534cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 25354c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25364a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 25374a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor PlacementRParen = T.getCloseLocation(); 2538cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementRParen.isInvalid()) { 25398fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 254020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2541cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 25424c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2543cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (PlacementArgs.empty()) { 25444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Reset the placement locations. There was no placement. 25454a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor TypeIdParens = T.getRange(); 25464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl PlacementLParen = PlacementRParen = SourceLocation(); 25474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 25484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // We still need the type. 25494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 25504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 25514a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 2552893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2553cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(DS); 2554ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2555cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(DeclaratorInfo); 25564a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 25574a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor TypeIdParens = T.getRange(); 25584c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2559893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2560cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2561cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2562ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2563ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2564cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2565cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2566ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 25674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 25684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 25694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } else { 2570cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // A new-type-id is a simplified type-id, where essentially the 2571cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl // direct-declarator is replaced by a direct-new-declarator. 2572893e1cc13ab17e96ada5019df6978af1668fee26Douglas Gregor MaybeParseGNUAttributes(DeclaratorInfo); 2573cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseCXXTypeSpecifierSeq(DS)) 2574cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl DeclaratorInfo.setInvalidType(true); 2575ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl else { 2576ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl DeclaratorInfo.SetSourceRange(DS.getSourceRange()); 2577cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclaratorInternal(DeclaratorInfo, 2578cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl &Parser::ParseDirectNewDeclarator); 2579ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl } 25804c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 2581eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner if (DeclaratorInfo.isInvalidType()) { 25828fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 258320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2584cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 25854c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25862aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl ExprResult Initializer; 25874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 25884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.is(tok::l_paren)) { 25892aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl SourceLocation ConstructorLParen, ConstructorRParen; 25904e28d9e2ba9ce237549b45cfd4136ec6536d1325Benjamin Kramer ExprVector ConstructorArgs; 25914a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 25924a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 25934a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor ConstructorLParen = T.getOpenLocation(); 25944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (Tok.isNot(tok::r_paren)) { 25954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 2596cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ParseExpressionList(ConstructorArgs, CommaLocs)) { 25978fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 259820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2599cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 26004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 26014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 26024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor ConstructorRParen = T.getCloseLocation(); 2603cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl if (ConstructorRParen.isInvalid()) { 26048fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::semi, StopAtSemi | StopBeforeMatch); 260520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 2606cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl } 26072aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl Initializer = Actions.ActOnParenListExpr(ConstructorLParen, 26082aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl ConstructorRParen, 26093fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer ConstructorArgs); 261080ad52f327b532bded5c5b0ee38779d841c6cd35Richard Smith } else if (Tok.is(tok::l_brace) && getLangOpts().CPlusPlus11) { 26117fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith Diag(Tok.getLocation(), 26127fe6208c3fa91f835813bb78236ef5c2bbf81053Richard Smith diag::warn_cxx98_compat_generalized_initializer_lists); 26132aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl Initializer = ParseBraceInitializer(); 26144c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 26152aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl if (Initializer.isInvalid()) 26162aed8b88613863f3c439cdfb205bdf8b608fb205Sebastian Redl return Initializer; 26174c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2618f53597fb16142bdb4a66901f8c0b768db4f2a548Sebastian Redl return Actions.ActOnCXXNew(Start, UseGlobal, PlacementLParen, 26193fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer PlacementArgs, PlacementRParen, 2620ef8225444452a1486bd721f3285301fe84643b00Stephen Hines TypeIdParens, DeclaratorInfo, Initializer.get()); 26214c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 26224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 26234c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseDirectNewDeclarator - Parses a direct-new-declarator. Intended to be 26244c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// passed to ParseDeclaratorInternal. 26254c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 26264c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator: 26274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '[' expression ']' 26284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// direct-new-declarator '[' constant-expression ']' 26294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 263059232d35f5820e334b6c8b007ae8006f4390055dChris Lattnervoid Parser::ParseDirectNewDeclarator(Declarator &D) { 26314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Parse the array dimensions. 26324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool first = true; 26334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl while (Tok.is(tok::l_square)) { 26346ee326af4e77e6f05973486097884d7431f2108dRichard Smith // An array-size expression can't start with a lambda. 26356ee326af4e77e6f05973486097884d7431f2108dRichard Smith if (CheckProhibitedCXX11Attribute()) 26366ee326af4e77e6f05973486097884d7431f2108dRichard Smith continue; 26376ee326af4e77e6f05973486097884d7431f2108dRichard Smith 26384a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 26394a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 26404a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 264160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Size(first ? ParseExpression() 26422f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl : ParseConstantExpression()); 26430e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Size.isInvalid()) { 26444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Recover 26458fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_square, StopAtSemi); 26464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 26474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 26484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl first = false; 26494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 26504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 26510b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall 2652ad017fa7a4df7389d245d02a49b3c79ed70bedb9Bill Wendling // Attributes here appertain to the array type. C++11 [expr.new]p5. 26536ee326af4e77e6f05973486097884d7431f2108dRichard Smith ParsedAttributes Attrs(AttrFactory); 26544e24f0f711e2c9fde79f19fa1c80deaab3f3b356Richard Smith MaybeParseCXX11Attributes(Attrs); 26556ee326af4e77e6f05973486097884d7431f2108dRichard Smith 26560b7e678a11ece4288dc01aebb5b17e5eef8f8d2dJohn McCall D.AddTypeInfo(DeclaratorChunk::getArray(0, 26577f040a9d817cd1c72b565e92abff473510bf9e1dJohn McCall /*static=*/false, /*star=*/false, 2658ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Size.get(), 26594a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getOpenLocation(), 26604a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()), 26616ee326af4e77e6f05973486097884d7431f2108dRichard Smith Attrs, T.getCloseLocation()); 26624c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 26634a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 26644c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return; 26654c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 26664c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 26674c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 26684c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseExpressionListOrTypeId - Parse either an expression-list or a type-id. 26694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// This ambiguity appears in the syntax of the C++ new operator. 26704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 26714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-expression: 26724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'new' new-placement[opt] '(' type-id ')' 26734c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-initializer[opt] 26744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 26754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// new-placement: 26764c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '(' expression-list ')' 26774c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 2678ca0408fb49c1370430672acf2d770b7151cf71deJohn McCallbool Parser::ParseExpressionListOrTypeId( 26795f9e272e632e951b1efe824cd16acb4d96077930Chris Lattner SmallVectorImpl<Expr*> &PlacementArgs, 268059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner Declarator &D) { 26814c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // The '(' was already consumed. 26824c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl if (isTypeIdInParens()) { 2683cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseSpecifierQualifierList(D.getMutableDeclSpec()); 2684ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl D.SetSourceRange(D.getDeclSpec().getSourceRange()); 2685cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl ParseDeclarator(D); 2686eaaebc7cf10dc1a2016183a262ad3256bc468759Chris Lattner return D.isInvalidType(); 26874c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 26884c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 26894c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // It's not a type, it has to be an expression list. 26904c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Discard the comma locations - ActOnCXXNew has enough parameters. 26914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl CommaLocsTy CommaLocs; 26924c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl return ParseExpressionList(PlacementArgs, CommaLocs); 26934c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 26944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 26954c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// ParseCXXDeleteExpression - Parse a C++ delete-expression. Delete is used 26964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// to free memory allocated by new. 26974c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// 269859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// This method is called to parse the 'delete' expression after the optional 269959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// '::' has been already parsed. If the '::' was present, "UseGlobal" is true 270059232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// and "Start" is its location. Otherwise, "Start" is the location of the 270159232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 'delete' token. 270259232d35f5820e334b6c8b007ae8006f4390055dChris Lattner/// 27034c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// delete-expression: 27044c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' cast-expression 27054c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl/// '::'[opt] 'delete' '[' ']' cast-expression 270660d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 270759232d35f5820e334b6c8b007ae8006f4390055dChris LattnerParser::ParseCXXDeleteExpression(bool UseGlobal, SourceLocation Start) { 270859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner assert(Tok.is(tok::kw_delete) && "Expected 'delete' keyword"); 270959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner ConsumeToken(); // Consume 'delete' 27104c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 27114c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // Array delete? 27124c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl bool ArrayDelete = false; 27136ee326af4e77e6f05973486097884d7431f2108dRichard Smith if (Tok.is(tok::l_square) && NextToken().is(tok::r_square)) { 2714950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // C++11 [expr.delete]p1: 2715950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // Whenever the delete keyword is followed by empty square brackets, it 2716950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // shall be interpreted as [array delete]. 2717950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // [Footnote: A lambda expression with a lambda-introducer that consists 2718950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // of empty square brackets can follow the delete keyword if 2719950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // the lambda expression is enclosed in parentheses.] 2720950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // FIXME: Produce a better diagnostic if the '[]' is unambiguously a 2721950435c15e413c55859f8af78d2c6e603743b42fRichard Smith // lambda-introducer. 27224c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl ArrayDelete = true; 27234a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_square); 27244a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor 27254a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeOpen(); 27264a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 27274a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor if (T.getCloseLocation().isInvalid()) 272820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ExprError(); 27294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl } 27304c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 273160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Operand(ParseCastExpression(false)); 27320e9eabca263e8922bec0e2b38c8670eba9a39a1fSebastian Redl if (Operand.isInvalid()) 27333fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Operand; 27344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 2735ef8225444452a1486bd721f3285301fe84643b00Stephen Hines return Actions.ActOnCXXDelete(Start, UseGlobal, ArrayDelete, Operand.get()); 27364c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl} 273764b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 27384ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregorstatic TypeTrait TypeTraitFromTokKind(tok::TokenKind kind) { 27394ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor switch (kind) { 27404ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor default: llvm_unreachable("Not a known type trait"); 2741651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#define TYPE_TRAIT_1(Spelling, Name, Key) \ 2742651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinescase tok::kw_ ## Spelling: return UTT_ ## Name; 2743651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#define TYPE_TRAIT_2(Spelling, Name, Key) \ 2744651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinescase tok::kw_ ## Spelling: return BTT_ ## Name; 2745651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/Basic/TokenKinds.def" 2746651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#define TYPE_TRAIT_N(Spelling, Name, Key) \ 2747651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines case tok::kw_ ## Spelling: return TT_ ## Name; 2748651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/Basic/TokenKinds.def" 27494ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 27504ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor} 27514ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 275221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegleystatic ArrayTypeTrait ArrayTypeTraitFromTokKind(tok::TokenKind kind) { 275321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch(kind) { 275421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley default: llvm_unreachable("Not a known binary type trait"); 275521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_rank: return ATT_ArrayRank; 275621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case tok::kw___array_extent: return ATT_ArrayExtent; 275721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 275821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 275921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2760552622067dc45013d240f73952fece703f5e63bdJohn Wiegleystatic ExpressionTrait ExpressionTraitFromTokKind(tok::TokenKind kind) { 2761552622067dc45013d240f73952fece703f5e63bdJohn Wiegley switch(kind) { 2762b219cfc4d75f0a03630b7c4509ef791b7e97b2c8David Blaikie default: llvm_unreachable("Not a known unary expression trait."); 2763552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_lvalue_expr: return ET_IsLValueExpr; 2764552622067dc45013d240f73952fece703f5e63bdJohn Wiegley case tok::kw___is_rvalue_expr: return ET_IsRValueExpr; 2765552622067dc45013d240f73952fece703f5e63bdJohn Wiegley } 2766552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2767552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2768651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesstatic unsigned TypeTraitArity(tok::TokenKind kind) { 2769651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines switch (kind) { 2770651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines default: llvm_unreachable("Not a known type trait"); 2771651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#define TYPE_TRAIT(N,Spelling,K) case tok::kw_##Spelling: return N; 2772651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "clang/Basic/TokenKinds.def" 27736ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet } 27746ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet} 27756ad6f2848d7652ab2991286eb48be440d3493b28Francois Pichet 27764ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// \brief Parse the built-in type-trait pseudo-functions that allow 27774ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// implementation of the TR1/C++11 type traits templates. 27784ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// 27794ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// primary-expression: 2780651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines/// unary-type-trait '(' type-id ')' 2781651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines/// binary-type-trait '(' type-id ',' type-id ')' 27824ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// type-trait '(' type-id-seq ')' 27834ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// 27844ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// type-id-seq: 27854ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// type-id ...[opt] type-id-seq[opt] 27864ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor/// 27874ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas GregorExprResult Parser::ParseTypeTrait() { 2788651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines tok::TokenKind Kind = Tok.getKind(); 2789651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines unsigned Arity = TypeTraitArity(Kind); 2790651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 27914ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor SourceLocation Loc = ConsumeToken(); 27924ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 27934ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor BalancedDelimiterTracker Parens(*this, tok::l_paren); 2794651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Parens.expectAndConsume()) 27954ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 27964ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 2797cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVector<ParsedType, 2> Args; 27984ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor do { 27994ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor // Parse the next type. 28004ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor TypeResult Ty = ParseTypeName(); 28014ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Ty.isInvalid()) { 28024ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Parens.skipToEnd(); 28034ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 28044ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 28054ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 28064ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor // Parse the ellipsis, if present. 28074ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Tok.is(tok::ellipsis)) { 28084ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Ty = Actions.ActOnPackExpansion(Ty.get(), ConsumeToken()); 28094ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Ty.isInvalid()) { 28104ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Parens.skipToEnd(); 28114ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 28124ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 28134ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor } 28144ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 28154ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor // Add this type to the list of arguments. 28164ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor Args.push_back(Ty.get()); 2817651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } while (TryConsumeToken(tok::comma)); 2818651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 28194ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor if (Parens.consumeClose()) 28204ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor return ExprError(); 2821651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2822651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines SourceLocation EndLoc = Parens.getCloseLocation(); 2823651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2824651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (Arity && Args.size() != Arity) { 2825651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(EndLoc, diag::err_type_trait_arity) 2826651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << Arity << 0 << (Arity > 1) << (int)Args.size() << SourceRange(Loc); 2827651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return ExprError(); 2828651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2829651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2830651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (!Arity && Args.empty()) { 2831651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines Diag(EndLoc, diag::err_type_trait_arity) 2832651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines << 1 << 1 << 1 << (int)Args.size() << SourceRange(Loc); 2833651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return ExprError(); 2834651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 2835651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 2836651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return Actions.ActOnTypeTrait(TypeTraitFromTokKind(Kind), Loc, Args, EndLoc); 28374ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor} 28384ca8ac2e61c37ddadf37024af86f3e1019af8532Douglas Gregor 283921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// ParseArrayTypeTrait - Parse the built-in array type-trait 284021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// pseudo-functions. 284121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 284221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// primary-expression: 284321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_rank' '(' type-id ')' 284421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// [Embarcadero] '__array_extent' '(' type-id ',' expression ')' 284521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley/// 284621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John WiegleyExprResult Parser::ParseArrayTypeTrait() { 284721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ArrayTypeTrait ATT = ArrayTypeTraitFromTokKind(Tok.getKind()); 284821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley SourceLocation Loc = ConsumeToken(); 284921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 28504a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 2851651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (T.expectAndConsume()) 285221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 285321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 285421ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley TypeResult Ty = ParseTypeName(); 285521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley if (Ty.isInvalid()) { 28568fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::comma, StopAtSemi); 28578fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 285821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 285921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 286021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 286121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley switch (ATT) { 286221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayRank: { 28634a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 28646bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), nullptr, 28654a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 286621ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 286721ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley case ATT_ArrayExtent: { 2868651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (ExpectAndConsume(tok::comma)) { 28698fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 287021ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley return ExprError(); 287121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 287221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 287321ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley ExprResult DimExpr = ParseExpression(); 28744a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 287521ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 28764a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnArrayTypeTrait(ATT, Loc, Ty.get(), DimExpr.get(), 28774a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 287821ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 287921ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley } 28803026348bd4c13a0f83b59839f64065e0fcbea253David Blaikie llvm_unreachable("Invalid ArrayTypeTrait!"); 288121ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley} 288221ff2e516b0e0bc8c1dbf965cb3d44bac3c64330John Wiegley 2883552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// ParseExpressionTrait - Parse built-in expression-trait 2884552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// pseudo-functions like __is_lvalue_expr( xxx ). 2885552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2886552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// primary-expression: 2887552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// [Embarcadero] expression-trait '(' expression ')' 2888552622067dc45013d240f73952fece703f5e63bdJohn Wiegley/// 2889552622067dc45013d240f73952fece703f5e63bdJohn WiegleyExprResult Parser::ParseExpressionTrait() { 2890552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExpressionTrait ET = ExpressionTraitFromTokKind(Tok.getKind()); 2891552622067dc45013d240f73952fece703f5e63bdJohn Wiegley SourceLocation Loc = ConsumeToken(); 2892552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 28934a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor BalancedDelimiterTracker T(*this, tok::l_paren); 2894651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines if (T.expectAndConsume()) 2895552622067dc45013d240f73952fece703f5e63bdJohn Wiegley return ExprError(); 2896552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2897552622067dc45013d240f73952fece703f5e63bdJohn Wiegley ExprResult Expr = ParseExpression(); 2898552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 28994a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.consumeClose(); 2900552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 29014a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor return Actions.ActOnExpressionTrait(ET, Loc, Expr.get(), 29024a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor T.getCloseLocation()); 2903552622067dc45013d240f73952fece703f5e63bdJohn Wiegley} 2904552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2905552622067dc45013d240f73952fece703f5e63bdJohn Wiegley 2906f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// ParseCXXAmbiguousParenExpression - We have parsed the left paren of a 2907f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// parenthesized ambiguous type-id. This uses tentative parsing to disambiguate 2908f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis/// based on the context past the parens. 290960d7b3a319d84d688752be3870615ac0f111fb16John McCallExprResult 2910f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios KyrtzidisParser::ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 2911b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &CastTy, 29126bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines BalancedDelimiterTracker &Tracker, 29136bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ColonProtectionRAIIObject &ColonProt) { 29144e4d08403ca5cfd4d558fa2936215d3a4e5a528dDavid Blaikie assert(getLangOpts().CPlusPlus && "Should only be called for C++!"); 2915f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(ExprType == CastExpr && "Compound literals are not ambiguous!"); 2916f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis assert(isTypeIdInParens() && "Not a type-id!"); 2917f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 291860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Result(true); 2919b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall CastTy = ParsedType(); 2920f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2921f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // We need to disambiguate a very ugly part of the C++ syntax: 2922f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2923f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())x; - type-id 2924f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())*x; - type-id 2925f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T())/x; - expression 2926f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // (T()); - expression 2927f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2928f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The bad news is that we cannot use the specialized tentative parser, since 2929f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // it can only verify that the thing inside the parens can be parsed as 2930f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // type-id, it is not useful for determining the context past the parens. 2931f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // 2932f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // The good news is that the parser can disambiguate this part without 2933a558a897cbe83a21914058348ffbdcf827530ad4Argyrios Kyrtzidis // making any unnecessary Action calls. 2934f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // 2935f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // It uses a scheme similar to parsing inline methods. The parenthesized 2936f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // tokens are cached, the context that follows is determined (possibly by 2937f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parsing a cast-expression), and then we re-introduce the cached tokens 2938f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // into the token stream and parse them appropriately. 2939f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 29401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenParseOption ParseAs; 2941f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis CachedTokens Toks; 2942f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2943f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Store the tokens of the parentheses. We will parse them after we determine 2944f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // the context that follows them. 294514b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis if (!ConsumeAndStoreUntil(tok::r_paren, Toks)) { 2946f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We didn't find the ')' we expected. 29474a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 2948f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 2949f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2950f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2951f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Tok.is(tok::l_brace)) { 2952f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = CompoundLiteral; 2953f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } else { 2954f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis bool NotCastExpr; 2955b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // FIXME: Special-case ++ and --: "(S())++;" is not a cast-expression 2956b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman if (Tok.is(tok::l_paren) && NextToken().is(tok::r_paren)) { 2957b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman NotCastExpr = true; 2958b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } else { 2959b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // Try parsing the cast-expression that may follow. 2960b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // If it is not a cast-expression, NotCastExpr will be true and no token 2961b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman // will be consumed. 29626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ColonProt.restore(); 2963b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman Result = ParseCastExpression(false/*isUnaryExpression*/, 2964b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman false/*isAddressofOperand*/, 2965b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall NotCastExpr, 29660a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // type-id has priority. 2967cd78e612d6fa8e214e6a6bb0e739a0c3e419df91Kaelyn Uhrain IsTypeCast); 2968b53f08ac87f1e1f4bc2fbfa4560c2183a82020eeEli Friedman } 2969f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2970f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // If we parsed a cast-expression, it's really a type-id, otherwise it's 2971f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // an expression. 2972f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ParseAs = NotCastExpr ? SimpleExpr : CastExpr; 2973f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 2974f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 29751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // The current token should go after the cached tokens. 2976f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Toks.push_back(Tok); 2977f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Re-enter the stored parenthesized tokens into the token stream, so we may 2978f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // parse them now. 2979f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis PP.EnterTokenStream(Toks.data(), Toks.size(), 2980f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis true/*DisableMacroExpansion*/, false/*OwnsTokens*/); 2981f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Drop the current token and bring the first cached one. It's the same token 2982f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // as when we entered this function. 2983f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ConsumeAnyToken(); 2984f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2985f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs >= CompoundLiteral) { 29860a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis // Parse the type declarator. 29870a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis DeclSpec DS(AttrFactory); 29880a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 29896bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines { 29906bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ColonProtectionRAIIObject InnerColonProtection(*this); 29916bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ParseSpecifierQualifierList(DS); 29926bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ParseDeclarator(DeclaratorInfo); 29936bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines } 2994f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 2995f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Match the ')'. 29964a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 29976bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines ColonProt.restore(); 2998f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 2999f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis if (ParseAs == CompoundLiteral) { 3000f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis ExprType = CompoundLiteral; 30016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines if (DeclaratorInfo.isInvalidType()) 30026bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return ExprError(); 30036bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 30046bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines TypeResult Ty = Actions.ActOnTypeName(getCurScope(), DeclaratorInfo); 30056bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return ParseCompoundLiteralExpression(Ty.get(), 30064a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getOpenLocation(), 30074a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.getCloseLocation()); 3008f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis } 30091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3010f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // We parsed '(' type-id ')' and the thing after it wasn't a '{'. 3011f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == CastExpr); 3012f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis 30130a85183be6930571f3af8e5a976d24c3f95e5b25Argyrios Kyrtzidis if (DeclaratorInfo.isInvalidType()) 3014f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis return ExprError(); 3015f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 3016f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Result is what ParseCastExpression returned earlier. 3017f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid()) 30184a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnCastExpr(getCurScope(), Tracker.getOpenLocation(), 30194a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor DeclaratorInfo, CastTy, 3020ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Tracker.getCloseLocation(), Result.get()); 30213fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 3022f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 30231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3024f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis // Not a compound literal, and not followed by a cast-expression. 3025f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis assert(ParseAs == SimpleExpr); 3026f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 3027f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis ExprType = SimpleExpr; 3028f40882a38baf258fa10e362003f6939a590074bbArgyrios Kyrtzidis Result = ParseExpression(); 3029f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (!Result.isInvalid() && Tok.is(tok::r_paren)) 30304a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Result = Actions.ActOnParenExpr(Tracker.getOpenLocation(), 3031ef8225444452a1486bd721f3285301fe84643b00Stephen Hines Tok.getLocation(), Result.get()); 3032f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis 3033f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis // Match the ')'. 3034f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis if (Result.isInvalid()) { 30358fe2475a4b4c00475709c13d43eb9a57cce87cbcAlexey Bataev SkipUntil(tok::r_paren, StopAtSemi); 3036f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return ExprError(); 3037f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 30381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 30394a8dfb511e8f84b2e38b7a86d8ddf05ac1e1a41bDouglas Gregor Tracker.consumeClose(); 30403fe198bf0d6118c7b080c17c3bb28d7c84e458b9Benjamin Kramer return Result; 3041f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis} 3042