ParseExprCXX.cpp revision 02bcd4cd1a19121da12884aa4943226f72a81e6c
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- ParseExprCXX.cpp - C++ Expression Parsing ------------------------===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file implements the Expression parsing implementation for C++. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Basic/Diagnostic.h" 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Parser.h" 16987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis#include "clang/Parse/DeclSpec.h" 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerusing namespace clang; 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXScopeSpecifier - Parse global scope or nested-name-specifier. 20eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 21eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 22eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' 23eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 24eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 25eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 26eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 27eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 28eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 29eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 30eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidisvoid Parser::ParseCXXScopeSpecifier(CXXScopeSpec &SS) { 31eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis assert(isTokenCXXScopeSpecifier() && "Not scope specifier!"); 32eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 33eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_cxxscope)) { 34eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setScopeRep(Tok.getAnnotationValue()); 35eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setRange(Tok.getAnnotationRange()); 36eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ConsumeToken(); 37eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis return; 38eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 39eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 40eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setBeginLoc(Tok.getLocation()); 41eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 42eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' 43eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 44eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::coloncolon)) { 45eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // Global scope. 46eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation CCLoc = ConsumeToken(); 47eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setScopeRep(Actions.ActOnCXXGlobalScopeSpecifier(CurScope, CCLoc)); 48eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setEndLoc(CCLoc); 49eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 50eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 51eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // nested-name-specifier: 52eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // type-name '::' 53eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // namespace-name '::' 54eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // nested-name-specifier identifier '::' 55eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 56eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 57eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis while (Tok.is(tok::identifier) && NextToken().is(tok::coloncolon)) { 58eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis IdentifierInfo *II = Tok.getIdentifierInfo(); 59eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation IdLoc = ConsumeToken(); 60eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis assert(Tok.is(tok::coloncolon) && 61eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis "NextToken() not working properly!"); 62eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation CCLoc = ConsumeToken(); 63eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (SS.isInvalid()) 64eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis continue; 65eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 66eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setScopeRep( 67eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Actions.ActOnCXXNestedNameSpecifier(CurScope, SS, IdLoc, CCLoc, *II) ); 68eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SS.setEndLoc(CCLoc); 69eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 70eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 71eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 72eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// ParseCXXIdExpression - Handle id-expression. 73eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 74eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// id-expression: 75eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id 76eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id 77eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 78eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// unqualified-id: 79eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// identifier 80eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// operator-function-id 81eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// conversion-function-id [TODO] 82eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '~' class-name [TODO] 83eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// template-id [TODO] 84eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 85eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 86eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 87eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' identifier 88eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' operator-function-id 89eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' template-id [TODO] 90eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 91eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier: 92eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// type-name '::' 93eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace-name '::' 94eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier identifier '::' 95eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// nested-name-specifier 'template'[opt] simple-template-id '::' [TODO] 96eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 97eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// NOTE: The standard specifies that, for qualified-id, the parser does not 98eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// expect: 99eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 100eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' conversion-function-id 101eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' '~' class-name 102eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 103eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// This may cause a slight inconsistency on diagnostics: 104eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 105eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// class C {}; 106eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// namespace A {} 107eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// void f() { 108eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: A :: ~ C(); // Some Sema error about using destructor with a 109eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// // namespace. 110eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// :: ~ C(); // Some Parser error like 'unexpected ~'. 111eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// } 112eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 113eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// We simplify the parser a bit and make it work like: 114eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 115eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// qualified-id: 116eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 117eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::' unqualified-id 118eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 119eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// That way Sema can handle and report similar errors for namespaces and the 120eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// global scope. 121eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// 122eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios KyrtzidisParser::ExprResult Parser::ParseCXXIdExpression() { 123eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // qualified-id: 124eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::'[opt] nested-name-specifier 'template'[opt] unqualified-id 125eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '::' unqualified-id 126eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 127eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis CXXScopeSpec SS; 128eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (isTokenCXXScopeSpecifier()) 129eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ParseCXXScopeSpecifier(SS); 130eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 131eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // unqualified-id: 132eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // identifier 133eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // operator-function-id 134eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // conversion-function-id [TODO] 135eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // '~' class-name [TODO] 136eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // template-id [TODO] 137eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // 138eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis switch (Tok.getKind()) { 139eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis default: 140eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis return Diag(Tok, diag::err_expected_unqualified_id); 141eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 142eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::identifier: { 143eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // Consume the identifier so that we can see if it is followed by a '('. 144eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis IdentifierInfo &II = *Tok.getIdentifierInfo(); 145eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation L = ConsumeToken(); 146eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis return Actions.ActOnIdentifierExpr(CurScope, L, II, 147eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Tok.is(tok::l_paren), &SS); 148eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 149eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 150eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::kw_operator: { 151eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis SourceLocation OperatorLoc = Tok.getLocation(); 152eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (IdentifierInfo *II = MaybeParseOperatorFunctionId()) { 153eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis return Actions.ActOnIdentifierExpr(CurScope, OperatorLoc, *II, 154eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Tok.is(tok::l_paren), &SS); 155eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 156eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // FIXME: Handle conversion-function-id. 157eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis unsigned DiagID = PP.getDiagnostics().getCustomDiagID(Diagnostic::Error, 158eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis "expected operator-function-id"); 159eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis return Diag(Tok, DiagID); 160eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 161eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 162eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } // switch. 163eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 164eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis assert(0 && "The switch was supposed to take care everything."); 165eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis} 166eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXCasts - This handles the various ways to cast expressions to another 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// type. 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// postfix-expression: [C++ 5.2p1] 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'dynamic_cast' '<' type-name '>' '(' expression ')' 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'static_cast' '<' type-name '>' '(' expression ')' 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'reinterpret_cast' '<' type-name '>' '(' expression ')' 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'const_cast' '<' type-name '>' '(' expression ')' 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::ExprResult Parser::ParseCXXCasts() { 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *CastName = 0; // For error messages 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer switch (Kind) { 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer default: assert(0 && "Unknown C++ cast!"); abort(); 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_const_cast: CastName = "const_cast"; break; 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_dynamic_cast: CastName = "dynamic_cast"; break; 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_reinterpret_cast: CastName = "reinterpret_cast"; break; 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer case tok::kw_static_cast: CastName = "static_cast"; break; 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc = ConsumeToken(); 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LAngleBracketLoc = Tok.getLocation(); 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::less, diag::err_expected_less_after, CastName)) 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ExprResult(true); 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TypeTy *CastTy = ParseTypeName(); 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RAngleBracketLoc = Tok.getLocation(); 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (ExpectAndConsume(tok::greater, diag::err_expected_greater)) { 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(LAngleBracketLoc, diag::err_matching, "<"); 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ExprResult(true); 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LParenLoc = Tok.getLocation(), RParenLoc; 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2044e1d99a8a4d2958f0858f4baac68066af2c5cf17Chris Lattner if (Tok.isNot(tok::l_paren)) { 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diag(Tok, diag::err_expected_lparen_after, CastName); 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ExprResult(true); 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ExprResult Result = ParseSimpleParenExpression(RParenLoc); 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (!Result.isInvalid) 21249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor Result = Actions.ActOnCXXNamedCast(OpLoc, Kind, 21349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor LAngleBracketLoc, CastTy, RAngleBracketLoc, 21449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor LParenLoc, Result.Val, RParenLoc); 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Result; 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParseCXXBoolLiteral - This handles the C++ Boolean literals. 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// boolean-literal: [C++ 2.13.5] 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'true' 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 'false' 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid SpencerParser::ExprResult Parser::ParseCXXBoolLiteral() { 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind Kind = Tok.getKind(); 2261b273c403734d343d720acb28f04011807c8aa56Steve Naroff return Actions.ActOnCXXBoolLiteral(ConsumeToken(), Kind); 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} 22850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 22950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// ParseThrowExpression - This handles the C++ throw expression. 23050dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 23150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// throw-expression: [C++ 15] 23250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner/// 'throw' assignment-expression[opt] 23350dd289f45738ed22b7583d52ed2525b927042ffChris LattnerParser::ExprResult Parser::ParseThrowExpression() { 23450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner assert(Tok.is(tok::kw_throw) && "Not throw!"); 23550dd289f45738ed22b7583d52ed2525b927042ffChris Lattner SourceLocation ThrowLoc = ConsumeToken(); // Eat the throw token. 2363e3d310a8c74f7e0ccaf2e0a64400d15b8cb5556Chris Lattner 2372a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // If the current token isn't the start of an assignment-expression, 2382a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // then the expression is not present. This handles things like: 2392a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner // "C ? throw : (void)42", which is crazy but legal. 2402a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner switch (Tok.getKind()) { // FIXME: move this predicate somewhere common. 2412a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::semi: 2422a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_paren: 2432a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_square: 2442a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::r_brace: 2452a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::colon: 2462a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner case tok::comma: 24750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner return Actions.ActOnCXXThrow(ThrowLoc); 24850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 2492a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner default: 2503e3d310a8c74f7e0ccaf2e0a64400d15b8cb5556Chris Lattner ExprResult Expr = ParseAssignmentExpression(); 2512a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner if (Expr.isInvalid) return Expr; 2522a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner return Actions.ActOnCXXThrow(ThrowLoc, Expr.Val); 2532a2819a0a8e114bfa5a3c4fc4c97fa173155bae9Chris Lattner } 25450dd289f45738ed22b7583d52ed2525b927042ffChris Lattner} 2554cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 2564cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// ParseCXXThis - This handles the C++ 'this' pointer. 2574cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// 2584cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// C++ 9.3.2: In the body of a non-static member function, the keyword this is 2594cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// a non-lvalue expression whose value is the address of the object for which 2604cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis/// the function is called. 2614cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios KyrtzidisParser::ExprResult Parser::ParseCXXThis() { 2624cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(Tok.is(tok::kw_this) && "Not 'this'!"); 2634cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis SourceLocation ThisLoc = ConsumeToken(); 264289d77302aa81dc24bf7aa75b36cb00a70a44bb5Argyrios Kyrtzidis return Actions.ActOnCXXThis(ThisLoc); 2654cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis} 266987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 267987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXTypeConstructExpression - Parse construction of a specified type. 268987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// Can be interpreted either as function-style casting ("int(x)") 269987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or class type construction ("ClassType(x,y,z)") 270987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// or creation of a value-initialized type ("int()"). 271987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 272987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// postfix-expression: [C++ 5.2p1] 273987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier '(' expression-list[opt] ')' [C++ 5.2.3] 274987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typename-specifier '(' expression-list[opt] ')' [TODO] 275987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 276987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios KyrtzidisParser::ExprResult Parser::ParseCXXTypeConstructExpression(const DeclSpec &DS) { 277987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::TypeNameContext); 278987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis TypeTy *TypeRep = Actions.ActOnTypeName(CurScope, DeclaratorInfo).Val; 279987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 280987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(Tok.is(tok::l_paren) && "Expected '('!"); 281987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation LParenLoc = ConsumeParen(); 282987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 283987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ExprListTy Exprs; 284987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis CommaLocsTy CommaLocs; 285987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 286987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (Tok.isNot(tok::r_paren)) { 287987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis if (ParseExpressionList(Exprs, CommaLocs)) { 288987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SkipUntil(tok::r_paren); 289987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return ExprResult(true); 290987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 291987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 292987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 293987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // Match the ')'. 294987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation RParenLoc = MatchRHSPunctuation(tok::r_paren, LParenLoc); 295987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 296987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert((Exprs.size() == 0 || Exprs.size()-1 == CommaLocs.size())&& 297987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis "Unexpected number of commas!"); 298987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return Actions.ActOnCXXTypeConstructExpr(DS.getSourceRange(), TypeRep, 299987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis LParenLoc, 300987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis &Exprs[0], Exprs.size(), 301987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis &CommaLocs[0], RParenLoc); 302987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 303987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 30471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// ParseCXXCondition - if/switch/while/for condition expression. 30571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 30671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// condition: 30771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// expression 30871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// type-specifier-seq declarator '=' assignment-expression 30971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// [GNU] type-specifier-seq declarator simple-asm-expr[opt] attributes[opt] 31071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// '=' assignment-expression 31171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis/// 31271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios KyrtzidisParser::ExprResult Parser::ParseCXXCondition() { 313a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis if (!isCXXConditionDeclaration()) 31471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return ParseExpression(); // expression 31571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 31671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation StartLoc = Tok.getLocation(); 31771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 31871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // type-specifier-seq 31971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclSpec DS; 32071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseSpecifierQualifierList(DS); 32171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 32271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // declarator 32371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis Declarator DeclaratorInfo(DS, Declarator::ConditionContext); 32471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ParseDeclarator(DeclaratorInfo); 32571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 32671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // simple-asm-expr[opt] 32771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw_asm)) { 32871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ExprResult AsmLabel = ParseSimpleAsm(); 32971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (AsmLabel.isInvalid) { 33071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SkipUntil(tok::semi); 33171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return true; 33271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 33371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclaratorInfo.setAsmLabel(AsmLabel.Val); 33471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis } 33571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 33671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // If attributes are present, parse them. 33771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.is(tok::kw___attribute)) 33871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclaratorInfo.AddAttributes(ParseAttributes()); 33971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 34071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // '=' assignment-expression 34171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (Tok.isNot(tok::equal)) 34271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return Diag(Tok, diag::err_expected_equal_after_declarator); 34371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis SourceLocation EqualLoc = ConsumeToken(); 34471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis ExprResult AssignExpr = ParseAssignmentExpression(); 34571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis if (AssignExpr.isInvalid) 34671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return true; 34771b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 34871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis return Actions.ActOnCXXConditionDeclarationExpr(CurScope, StartLoc, 34971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis DeclaratorInfo, 35071b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis EqualLoc, AssignExpr.Val); 35171b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis} 35271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 353987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 354987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// This should only be called when the current token is known to be part of 355987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier. 356987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 357987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// simple-type-specifier: 358eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis/// '::'[opt] nested-name-specifier[opt] type-name 359987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// '::'[opt] nested-name-specifier 'template' simple-template-id [TODO] 360987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// char 361987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// wchar_t 362987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// bool 363987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// short 364987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// int 365987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// long 366987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// signed 367987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// unsigned 368987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// float 369987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// double 370987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// void 371987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [GNU] typeof-specifier 372987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// [C++0x] auto [TODO] 373987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 374987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// type-name: 375987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// class-name 376987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// enum-name 377987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// typedef-name 378987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis/// 379987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidisvoid Parser::ParseCXXSimpleTypeSpecifier(DeclSpec &DS) { 380eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // Annotate typenames and C++ scope specifiers. 381eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis TryAnnotateTypeOrScopeToken(); 382eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 383987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetRangeStart(Tok.getLocation()); 384987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis const char *PrevSpec; 385987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis SourceLocation Loc = Tok.getLocation(); 386987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 387987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis switch (Tok.getKind()) { 388987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis default: 389987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis assert(0 && "Not a simple-type-specifier token!"); 390987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis abort(); 391987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 392987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // type-name 393eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis case tok::annot_qualtypename: { 394eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_typedef, Loc, PrevSpec, 395eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Tok.getAnnotationValue()); 396987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 397987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 398987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 399987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // builtin types 400987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_short: 401987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_short, Loc, PrevSpec); 402987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 403987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_long: 404987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecWidth(DeclSpec::TSW_long, Loc, PrevSpec); 405987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 406987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_signed: 407987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_signed, Loc, PrevSpec); 408987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 409987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_unsigned: 410987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecSign(DeclSpec::TSS_unsigned, Loc, PrevSpec); 411987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 412987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_void: 413987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_void, Loc, PrevSpec); 414987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 415987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_char: 416987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_char, Loc, PrevSpec); 417987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 418987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_int: 419987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_int, Loc, PrevSpec); 420987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 421987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_float: 422987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_float, Loc, PrevSpec); 423987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 424987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_double: 425987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_double, Loc, PrevSpec); 426987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 427987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_wchar_t: 428987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_wchar, Loc, PrevSpec); 429987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 430987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_bool: 431987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.SetTypeSpecType(DeclSpec::TST_bool, Loc, PrevSpec); 432987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis break; 433987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 434987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // GNU typeof support. 435987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis case tok::kw_typeof: 436987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ParseTypeofSpecifier(DS); 437987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.Finish(Diags, PP.getSourceManager(), getLang()); 438987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis return; 439987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis } 440eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (Tok.is(tok::annot_qualtypename)) 441eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getAnnotationEndLoc()); 442eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis else 443eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DS.SetRangeEnd(Tok.getLocation()); 444987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis ConsumeToken(); 445987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis DS.Finish(Diags, PP.getSourceManager(), getLang()); 446987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis} 4471cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 4482f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseCXXTypeSpecifierSeq - Parse a C++ type-specifier-seq (C++ 4492f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// [dcl.name]), which is a non-empty sequence of type-specifiers, 4502f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// e.g., "const short int". Note that the DeclSpec is *not* finished 4512f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// by parsing the type-specifier-seq, because these sequences are 4522f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// typically followed by some form of declarator. Returns true and 4532f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// emits diagnostics if this is not a type-specifier-seq, false 4542f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// otherwise. 4552f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 4562f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq: [C++ 8.1] 4572f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier type-specifier-seq[opt] 4582f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 4592f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregorbool Parser::ParseCXXTypeSpecifierSeq(DeclSpec &DS) { 4602f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DS.SetRangeStart(Tok.getLocation()); 4612f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor const char *PrevSpec = 0; 4622f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor int isInvalid = 0; 4632f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 4642f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse one or more of the type specifiers. 4652f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor if (!MaybeParseTypeSpecifier(DS, isInvalid, PrevSpec)) { 4662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Diag(Tok.getLocation(), diag::err_operator_missing_type_specifier); 4672f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return true; 4682f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor } 469b90585c3c65db9ab587674586602729edbd096aaDaniel Dunbar while (MaybeParseTypeSpecifier(DS, isInvalid, PrevSpec)) ; 4702f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 4712f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return false; 4722f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 4732f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 4741cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// MaybeParseOperatorFunctionId - Attempts to parse a C++ overloaded 4751cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator name (C++ [over.oper]). If successful, returns the 4761cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// predefined identifier that corresponds to that overloaded 4771cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator. Otherwise, returns NULL and does not consume any tokens. 4781cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 4791cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator-function-id: [C++ 13.5] 4801cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 'operator' operator 4811cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// 4821cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// operator: one of 4831cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// new delete new[] delete[] 4841cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// + - * / % ^ & | ~ 4851cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ! = < > += -= *= /= %= 4861cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// ^= &= |= << >> >>= <<= == != 4871cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// <= >= && || ++ -- , ->* -> 4881cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor/// () [] 4891cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas GregorIdentifierInfo *Parser::MaybeParseOperatorFunctionId() { 4909057a81efaf15c543aab1c5c8488e8a9ed2c0ff4Argyrios Kyrtzidis assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 4911cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 4921cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor OverloadedOperatorKind Op = OO_None; 4931cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor switch (NextToken().getKind()) { 4941cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_new: 4951cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 4961cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'new' 4971cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 4981cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 4991cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 5001cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_New; 5011cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 5021cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_New; 5031cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 5041cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor return &PP.getIdentifierTable().getOverloadedOperator(Op); 5051cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 5061cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::kw_delete: 5071cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 5081cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'delete' 5091cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Tok.is(tok::l_square)) { 5101cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 5111cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 5121cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Array_Delete; 5131cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } else { 5141cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor Op = OO_Delete; 5151cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 5161cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor return &PP.getIdentifierTable().getOverloadedOperator(Op); 5171cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 51802bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR(Name,Spelling,Token,Unary,Binary,MemberOnly) \ 5191cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::Token: Op = OO_##Name; break; 52002bcd4cd1a19121da12884aa4943226f72a81e6cDouglas Gregor#define OVERLOADED_OPERATOR_MULTI(Name,Spelling,Unary,Binary,MemberOnly) 5211cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor#include "clang/Basic/OperatorKinds.def" 5221cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 5231cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_paren: 5241cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 5251cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeParen(); // '(' 5261cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_paren, diag::err_expected_rparen); // ')' 5271cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor return &PP.getIdentifierTable().getOverloadedOperator(OO_Call); 5281cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 5291cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor case tok::l_square: 5301cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeToken(); // 'operator' 5311cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeBracket(); // '[' 5321cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ExpectAndConsume(tok::r_square, diag::err_expected_rsquare); // ']' 5331cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor return &PP.getIdentifierTable().getOverloadedOperator(OO_Subscript); 5341cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 5351cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor default: 5361cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor break; 5371cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 5381cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 5391cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor if (Op == OO_None) 5401cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor return 0; 5411cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor else { 5429057a81efaf15c543aab1c5c8488e8a9ed2c0ff4Argyrios Kyrtzidis ConsumeToken(); // 'operator' 5431cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor ConsumeAnyToken(); // the operator itself 5441cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor return &PP.getIdentifierTable().getOverloadedOperator(Op); 5451cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor } 5461cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor} 5472f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 5482f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ParseConversionFunctionId - Parse a C++ conversion-function-id, 5492f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// which expresses the name of a user-defined conversion operator 5502f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// (C++ [class.conv.fct]p1). Returns the type that this operator is 5512f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// specifying a conversion for, or NULL if there was an error. 5522f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 5532f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-function-id: [C++ 12.3.2] 5542f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// operator conversion-type-id 5552f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 5562f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-type-id: 5572f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// type-specifier-seq conversion-declarator[opt] 5582f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// 5592f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// conversion-declarator: 5602f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor/// ptr-operator conversion-declarator[opt] 5612f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas GregorParser::TypeTy *Parser::ParseConversionFunctionId() { 5622f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor assert(Tok.is(tok::kw_operator) && "Expected 'operator' keyword"); 5632f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor ConsumeToken(); // 'operator' 5642f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 5652f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the type-specifier-seq. 5662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor DeclSpec DS; 5672f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor if (ParseCXXTypeSpecifierSeq(DS)) 5682f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 5692f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 5702f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Parse the conversion-declarator, which is merely a sequence of 5712f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // ptr-operators. 5722f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Declarator D(DS, Declarator::TypeNameContext); 5732f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor ParseDeclaratorInternal(D, /*PtrOperator=*/true); 5742f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 5752f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor // Finish up the type. 5762f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor Action::TypeResult Result = Actions.ActOnTypeName(CurScope, D); 5772f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor if (Result.isInvalid) 5782f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return 0; 5792f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor else 5802f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor return Result.Val; 5812f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor} 582