Parser.h revision 334d47e92e9f241576fdeb7477b69a03136ba854
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Parser.h - C Language Parser ---------------------------*- C++ -*-===// 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 defines the Parser interface. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_PARSE_PARSER_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_PARSE_PARSER_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17ad2b804faf29042e6c4e331d0987f103f1e2fd31John McCall#include "clang/Basic/Specifiers.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Lex/Preprocessor.h" 19f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor#include "clang/Lex/CodeCompletionHandler.h" 20f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall#include "clang/Sema/Sema.h" 2119510856727e0e14a3696b2a72c35163bff2a71fJohn McCall#include "clang/Sema/DeclSpec.h" 22f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall#include "llvm/Support/PrettyStackTrace.h" 234726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek#include "llvm/ADT/OwningPtr.h" 244cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis#include <stack> 251100258c19dd8967ba078c0bc81fc06cea9d033fChris Lattner#include <list> 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 28fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar class AttributeList; 29bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt struct CXX0XAttributeList; 30fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar class PragmaHandler; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Scope; 322b5289b6fd7e3d9899868410a498c081c9595662John McCall class DeclGroupRef; 333cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner class DiagnosticBuilder; 340102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner class Parser; 354726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek class PragmaUnusedHandler; 3608d92ecf6e5b1fd23177a08c2312b58d63d863dbChris Lattner class ColonProtectionRAIIObject; 370fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor class InMessageExpressionRAIIObject; 380fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 390102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// PrettyStackTraceParserEntry - If a crash happens while the parser is active, 400102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// an entry is printed for it. 410102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattnerclass PrettyStackTraceParserEntry : public llvm::PrettyStackTraceEntry { 420102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Parser &P; 430102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattnerpublic: 440102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner PrettyStackTraceParserEntry(const Parser &p) : P(p) {} 450102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner virtual void print(llvm::raw_ostream &OS) const; 460102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner}; 471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 486aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// PrecedenceLevels - These are precedences for the binary/ternary 496aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// operators in the C99 grammar. These have been named to relate 506aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// with the C99 grammar productions. Low precedences numbers bind 516aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor/// more weakly than high numbers. 526aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregornamespace prec { 536aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor enum Level { 546aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor Unknown = 0, // Not binary operator. 556aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor Comma = 1, // , 566aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor Assignment = 2, // =, *=, /=, %=, +=, -=, <<=, >>=, &=, ^=, |= 576aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor Conditional = 3, // ? 586aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor LogicalOr = 4, // || 596aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor LogicalAnd = 5, // && 606aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor InclusiveOr = 6, // | 616aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor ExclusiveOr = 7, // ^ 626aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor And = 8, // & 636aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor Equality = 9, // ==, != 646aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor Relational = 10, // >=, <=, >, < 656aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor Shift = 11, // <<, >> 666aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor Additive = 12, // -, + 676aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor Multiplicative = 13, // *, /, % 686aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor PointerToMember = 14 // .*, ->* 696aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor }; 706aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor} 711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Parser - This implements a parser for the C family of languages. After 735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parsing units of the grammar, productions are invoked to handle whatever has 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// been read. 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 76f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregorclass Parser : public CodeCompletionHandler { 774726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek friend class PragmaUnusedHandler; 7808d92ecf6e5b1fd23177a08c2312b58d63d863dbChris Lattner friend class ColonProtectionRAIIObject; 790fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor friend class InMessageExpressionRAIIObject; 8036d36806f1972f7ec1d2a3f59155187278c56508Argyrios Kyrtzidis friend class ParenBraceBracketBalancer; 810102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner PrettyStackTraceParserEntry CrashInfo; 821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Preprocessor &PP; 841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8597d0205d16fef2a783e785459b5f30f6a9dfbcb9Eric Christopher /// Tok - The current token we are peeking ahead. All parsing methods assume 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// that this is valid. 87d217773f106856a11879ec79dc468efefaf2ee75Chris Lattner Token Tok; 881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 894b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // PrevTokLocation - The location of the token we previously 904b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // consumed. This token is used for diagnostics where we expected to 914b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // see a token following another token (e.g., the ';' at the end of 924b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // a statement). 934b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceLocation PrevTokLocation; 944b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned short ParenCount, BracketCount, BraceCount; 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Actions - These are the callbacks we invoke as we parse various constructs 9887c300738174924453648c3b2d6f366c8284fac4Douglas Gregor /// in the file. 99f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema &Actions; 1001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diagnostic &Diags; 1021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1039e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner /// ScopeCache - Cache scopes to reduce malloc traffic. 1049e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner enum { ScopeCacheSize = 16 }; 1059e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner unsigned NumCachedScopes; 1069e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *ScopeCache[ScopeCacheSize]; 107662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 108662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar /// Ident_super - IdentifierInfo for "super", to support fast 109662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar /// comparison. 110662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar IdentifierInfo *Ident_super; 11182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson /// Ident_vector and Ident_pixel - cached IdentifierInfo's for 11282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson /// "vector" and "pixel" fast comparison. Only present if 11382287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson /// AltiVec enabled. 11482287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson IdentifierInfo *Ident_vector; 11582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson IdentifierInfo *Ident_pixel; 116662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 117cbb98edd530787c2ac019e437e7c599df8004ba7Daniel Dunbar llvm::OwningPtr<PragmaHandler> AlignHandler; 118aa8b0d19244a6e7e8e5798fcc6aef003c274d3e0Eli Friedman llvm::OwningPtr<PragmaHandler> GCCVisibilityHandler; 119861800c676004eabed5927f0552620d06c80a40aDaniel Dunbar llvm::OwningPtr<PragmaHandler> OptionsHandler; 1204726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek llvm::OwningPtr<PragmaHandler> PackHandler; 1214726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek llvm::OwningPtr<PragmaHandler> UnusedHandler; 1229991479ad5dde617168cc1e4b18425cdbbfd9fa9Eli Friedman llvm::OwningPtr<PragmaHandler> WeakHandler; 1231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// Whether the '>' token acts as an operator or not. This will be 12555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// true except when we are parsing an expression within a C++ 12655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// template argument list, where the '>' closes the template 12755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// argument list. 12855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor bool GreaterThanIsOperator; 12908d92ecf6e5b1fd23177a08c2312b58d63d863dbChris Lattner 13008d92ecf6e5b1fd23177a08c2312b58d63d863dbChris Lattner /// ColonIsSacred - When this is false, we aggressively try to recover from 13108d92ecf6e5b1fd23177a08c2312b58d63d863dbChris Lattner /// code like "foo : bar" as if it were a typo for "foo :: bar". This is not 13208d92ecf6e5b1fd23177a08c2312b58d63d863dbChris Lattner /// safe in case statements and a few other things. This is managed by the 13308d92ecf6e5b1fd23177a08c2312b58d63d863dbChris Lattner /// ColonProtectionRAIIObject RAII object. 13408d92ecf6e5b1fd23177a08c2312b58d63d863dbChris Lattner bool ColonIsSacred; 13555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1360fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor /// \brief When true, we are directly inside an Ojective-C messsage 1370fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor /// send expression. 1380fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor /// 1390fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor /// This is managed by the \c InMessageExpressionRAIIObject class, and 1400fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor /// should not be set directly. 1410fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor bool InMessageExpression; 1420fbda68b50ce17d7ad36ef7a5ed77518a5cd272eDouglas Gregor 143c3058338075a2132e057f1249a13b55a81fe021cDouglas Gregor /// The "depth" of the template parameters currently being parsed. 144c3058338075a2132e057f1249a13b55a81fe021cDouglas Gregor unsigned TemplateParameterDepth; 1451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 147f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Parser(Preprocessor &PP, Sema &Actions); 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ~Parser(); 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const LangOptions &getLang() const { return PP.getLangOptions(); } 151444be7366d0a1e172c0290a1ea54c1cb16b5947cDaniel Dunbar const TargetInfo &getTargetInfo() const { return PP.getTargetInfo(); } 1520102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Preprocessor &getPreprocessor() const { return PP; } 153f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema &getActions() const { return Actions; } 1541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1550102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &getCurToken() const { return Tok; } 15623c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor Scope *getCurScope() const { return Actions.getCurScope(); } 15723c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Type forwarding. All of these are statically 'void*', but they may all be 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // different actual classes based on the actions in place. 160ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall typedef Expr ExprTy; 161ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall typedef Stmt StmtTy; 1622b5289b6fd7e3d9899868410a498c081c9595662John McCall typedef OpaquePtr<DeclGroupRef> DeclGroupPtrTy; 163ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall typedef CXXBaseSpecifier BaseTy; 164ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall typedef CXXBaseOrMemberInitializer MemInitTy; 165ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall typedef NestedNameSpecifier CXXScopeTy; 166ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall typedef TemplateParameterList TemplateParamsTy; 1672b5289b6fd7e3d9899868410a498c081c9595662John McCall typedef OpaquePtr<TemplateName> TemplateTy; 1687ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 169ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall typedef llvm::SmallVector<TemplateParameterList *, 4> TemplateParameterLists; 170c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor 1719ae2f076ca5ab1feb3ba95629099ec2319833701John McCall typedef clang::ExprResult ExprResult; 1729ae2f076ca5ab1feb3ba95629099ec2319833701John McCall typedef clang::StmtResult StmtResult; 1739ae2f076ca5ab1feb3ba95629099ec2319833701John McCall typedef clang::BaseResult BaseResult; 1749ae2f076ca5ab1feb3ba95629099ec2319833701John McCall typedef clang::MemInitResult MemInitResult; 1759ae2f076ca5ab1feb3ba95629099ec2319833701John McCall typedef clang::TypeResult TypeResult; 17615faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 1779ae2f076ca5ab1feb3ba95629099ec2319833701John McCall typedef Expr *ExprArg; 1789ae2f076ca5ab1feb3ba95629099ec2319833701John McCall typedef ASTMultiPtr<Stmt*> MultiStmtArg; 179f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall typedef Sema::FullExprArg FullExprArg; 1801d922960e083906a586609ac6978678147250177Sebastian Redl 18160d7b3a319d84d688752be3870615ac0f111fb16John McCall /// Adorns a ExprResult with Actions to make it an ExprResult 18260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult Owned(ExprResult res) { 18360d7b3a319d84d688752be3870615ac0f111fb16John McCall return ExprResult(res); 18461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 18560d7b3a319d84d688752be3870615ac0f111fb16John McCall /// Adorns a StmtResult with Actions to make it an StmtResult 18660d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult Owned(StmtResult res) { 18760d7b3a319d84d688752be3870615ac0f111fb16John McCall return StmtResult(res); 18861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 18961364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 19060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ExprError() { return ExprResult(true); } 19160d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult StmtError() { return StmtResult(true); } 192d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 19360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ExprError(const DiagnosticBuilder &) { return ExprError(); } 19460d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult StmtError(const DiagnosticBuilder &) { return StmtError(); } 19561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 19660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ExprEmpty() { return ExprResult(false); } 1975ab0640efb436a721d408c853b771932d1a6ffceArgyrios Kyrtzidis 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parsing methods. 1991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParseTranslationUnit - All in one method that initializes parses, and 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// shuts down the parser. 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseTranslationUnit(); 2031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Initialize - Warm up the parser. 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Initialize(); 2071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// ParseTopLevelDecl - Parse one top-level declaration. Returns true if 2091f6443255894429fba384de0d5b6389ef578a5e9Steve Naroff /// the EOF was encountered. 210682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner bool ParseTopLevelDecl(DeclGroupPtrTy &Result); 2111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2123fe104154dd2e8ffb351142d74f308938b5c99bfFariborz Jahanian DeclGroupPtrTy FinishPendingObjCActions(); 21363e963cdffca9530f920dbab58b9b4eecb2a582cFariborz Jahanian 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Low-Level token peeking and consumption methods. 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // 2181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenParen - Return true if the cur token is '(' or ')'. 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenParen() const { 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_paren || Tok.getKind() == tok::r_paren; 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenBracket - Return true if the cur token is '[' or ']'. 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenBracket() const { 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_square || Tok.getKind() == tok::r_square; 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenBrace - Return true if the cur token is '{' or '}'. 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenBrace() const { 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_brace || Tok.getKind() == tok::r_brace; 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenStringLiteral - True if this token is a string-literal. 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenStringLiteral() const { 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::string_literal || 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.getKind() == tok::wide_string_literal; 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 238eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 239a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis /// \brief Returns true if the current token is a '=' or '==' and 240a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis /// false otherwise. If it's '==', we assume that it's a typo and we emit 241a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis /// DiagID and a fixit hint to turn '==' -> '='. 242a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis bool isTokenEqualOrMistypedEqualEqual(unsigned DiagID); 243a6eb5f81d13bacac01faff70a947047725b4413fArgyrios Kyrtzidis 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeToken - Consume the current 'peek token' and lex the next one. 245d6ecc5cf945ccdf2b931137e364a69cde59ab18bZhongxing Xu /// This does not work with all kinds of tokens: strings and specific other 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// tokens must be consumed with custom methods below. This returns the 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// location of the consumed token. 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeToken() { 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isTokenStringLiteral() && !isTokenParen() && !isTokenBracket() && 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer !isTokenBrace() && 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Should consume special tokens with Consume*Token"); 252dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor if (Tok.is(tok::code_completion)) { 253dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor CodeCompletionRecovery(); 254dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return ConsumeCodeCompletionToken(); 255dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 256dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 2574b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2594b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeAnyToken - Dispatch to the right Consume* method based on the 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// current token type. This should only be used in cases where the type of 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the token really isn't known, e.g. in error recovery. 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeAnyToken() { 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isTokenParen()) 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeParen(); 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isTokenBracket()) 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeBracket(); 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isTokenBrace()) 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeBrace(); 272d62701bc5321049353017e9abf1963edd57646aaSteve Naroff else if (isTokenStringLiteral()) 273d62701bc5321049353017e9abf1963edd57646aaSteve Naroff return ConsumeStringToken(); 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeToken(); 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeParen - This consume method keeps the paren count up-to-date. 2795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeParen() { 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenParen() && "wrong consume method"); 2825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_paren) 2835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++ParenCount; 2845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ParenCount) 2855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --ParenCount; // Don't let unbalanced )'s drive the count negative. 2864b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2884b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeBracket - This consume method keeps the bracket count up-to-date. 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeBracket() { 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenBracket() && "wrong consume method"); 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_square) 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++BracketCount; 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (BracketCount) 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --BracketCount; // Don't let unbalanced ]'s drive the count negative. 2991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3004b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 3024b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeBrace - This consume method keeps the brace count up-to-date. 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeBrace() { 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenBrace() && "wrong consume method"); 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_brace) 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++BraceCount; 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (BraceCount) 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --BraceCount; // Don't let unbalanced }'s drive the count negative. 3131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3144b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 3164b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeStringToken - Consume the current 'peek token', lexing a new one 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and returning the token kind. This method is specific to strings, as it 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// handles string literal concatenation, as per C99 5.1.1.2, translation 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// phase #6. 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeStringToken() { 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenStringLiteral() && 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Should only consume string literals with this method"); 3264b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 3284b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 331dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor /// \brief Consume the current code-completion token. 332dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor /// 333dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor /// This routine should be called to consume the code-completion token once 334dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor /// a code-completion action has already been invoked. 335dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor SourceLocation ConsumeCodeCompletionToken() { 336dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor assert(Tok.is(tok::code_completion)); 337dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor PrevTokLocation = Tok.getLocation(); 338dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor PP.Lex(Tok); 339dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor return PrevTokLocation; 340dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor } 341dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 342dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor ///\ brief When we are consuming a code-completion token within having 343dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor /// matched specific position in the grammar, provide code-completion results 344dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor /// based on context. 345dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor void CodeCompletionRecovery(); 346dc8453422bec3bbf70c03920e01498d75783d122Douglas Gregor 3476b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// GetLookAheadToken - This peeks ahead N tokens and returns that token 3486b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// without consuming any tokens. LookAhead(0) returns 'Tok', LookAhead(1) 3496b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// returns the token after Tok, etc. 3506b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// 3516b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// Note that this differs from the Preprocessor's LookAhead method, because 3526b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// the Parser always has one token lexed that the preprocessor doesn't. 3536b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// 35403db1b31dd926409b7defc1c90b66549464652c0Argyrios Kyrtzidis const Token &GetLookAheadToken(unsigned N) { 3556b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner if (N == 0 || Tok.is(tok::eof)) return Tok; 3566b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner return PP.LookAhead(N-1); 3576b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner } 358f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis 359f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis /// NextToken - This peeks ahead one token and returns it without 360f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis /// consuming it. 361f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis const Token &NextToken() { 36203db1b31dd926409b7defc1c90b66549464652c0Argyrios Kyrtzidis return PP.LookAhead(0); 363f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis } 3645404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 365b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall /// getTypeAnnotation - Read a parsed type out of an annotation token. 366b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall static ParsedType getTypeAnnotation(Token &Tok) { 367b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall return ParsedType::getFromOpaquePtr(Tok.getAnnotationValue()); 368b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } 369b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall 370b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall static void setTypeAnnotation(Token &Tok, ParsedType T) { 371b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall Tok.setAnnotationValue(T.getAsOpaquePtr()); 372b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall } 373b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall 374eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// TryAnnotateTypeOrScopeToken - If the current token position is on a 375eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// typename (possibly qualified in C++) or a C++ scope specifier not followed 376eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 377eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// with a single annotation token representing the typename or C++ scope 378eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// respectively. 379eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// This simplifies handling of C++ scope specifiers and allows efficient 380eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// backtracking without the need to re-parse and resolve nested-names and 381eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// typenames. 38244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// It will mainly be called when we expect to treat identifiers as typenames 38344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// (if they are typenames). For example, in C we do not expect identifiers 38444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// inside expressions to be treated as typenames so it will not be called 38544802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// for expressions in C. 386a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner /// 387a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner /// This returns true if the token was annotated. 388495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor bool TryAnnotateTypeOrScopeToken(bool EnteringContext = false); 389eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 3909ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall /// TryAnnotateCXXScopeToken - Like TryAnnotateTypeOrScopeToken but 3919ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall /// only annotates C++ scope specifiers. This returns true if there 3929ba6166f4a78722e7df8ffbd64eb788bfdf2764aJohn McCall /// was an unrecoverable error. 393495c35d291da48c4f5655bbb54d15128ddde0d4dDouglas Gregor bool TryAnnotateCXXScopeToken(bool EnteringContext = false); 394eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 39582287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson /// TryAltiVecToken - Check for context-sensitive AltiVec identifier tokens, 39682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson /// replacing them with the non-context-sensitive keywords. This returns 39782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson /// true if the token was replaced. 39882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson bool TryAltiVecToken(DeclSpec &DS, SourceLocation Loc, 399b3a4e432c90be98c6d918087750397e86d030368Chris Lattner const char *&PrevSpec, unsigned &DiagID, 400b3a4e432c90be98c6d918087750397e86d030368Chris Lattner bool &isInvalid) { 4011b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner if (!getLang().AltiVec || 4021b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner (Tok.getIdentifierInfo() != Ident_vector && 4031b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner Tok.getIdentifierInfo() != Ident_pixel)) 4041b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner return false; 4051b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner 4061b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner return TryAltiVecTokenOutOfLine(DS, Loc, PrevSpec, DiagID, isInvalid); 40782287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 40882287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson 40982287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson /// TryAltiVecVectorToken - Check for context-sensitive AltiVec vector 41082287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson /// identifier token, replacing it with the non-context-sensitive __vector. 41182287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson /// This returns true if the token was replaced. 41282287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson bool TryAltiVecVectorToken() { 413b3a4e432c90be98c6d918087750397e86d030368Chris Lattner if (!getLang().AltiVec || 414b3a4e432c90be98c6d918087750397e86d030368Chris Lattner Tok.getIdentifierInfo() != Ident_vector) return false; 4151b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner return TryAltiVecVectorTokenOutOfLine(); 41682287d19ded35248c4ce6a425ce74116a13ce44eJohn Thompson } 4171b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner 4181b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner bool TryAltiVecVectorTokenOutOfLine(); 4191b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner bool TryAltiVecTokenOutOfLine(DeclSpec &DS, SourceLocation Loc, 4201b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner const char *&PrevSpec, unsigned &DiagID, 4211b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner bool &isInvalid); 4221b49242de4e8bc718d7611c33a1d76ce35864020Chris Lattner 4235404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TentativeParsingAction - An object that is used as a kind of "tentative 4245404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// parsing transaction". It gets instantiated to mark the token position and 4255404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// after the token consumption is done, Commit() or Revert() is called to 4265404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// either "commit the consumed tokens" or revert to the previously marked 4275404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// token position. Example: 4285404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// 429314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor /// TentativeParsingAction TPA(*this); 4305404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// ConsumeToken(); 4315404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// .... 4325404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TPA.Revert(); 4335404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// 4345404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis class TentativeParsingAction { 4355404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis Parser &P; 4365404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis Token PrevTok; 4375404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isActive; 4385404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 4395404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis public: 4405404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis explicit TentativeParsingAction(Parser& p) : P(p) { 4415404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis PrevTok = P.Tok; 4425404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.EnableBacktrackAtThisPos(); 4435404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = true; 4445404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 4455404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis void Commit() { 4465404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(isActive && "Parsing action was finished!"); 4475404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.CommitBacktrackedTokens(); 4485404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = false; 4495404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 4505404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis void Revert() { 4515404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(isActive && "Parsing action was finished!"); 4525404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.Backtrack(); 4535404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.Tok = PrevTok; 4545404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = false; 4555404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 4565404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis ~TentativeParsingAction() { 4575404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(!isActive && "Forgot to call Commit or Revert!"); 4585404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 4595404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis }; 4601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// MatchRHSPunctuation - For punctuation with a LHS and RHS (e.g. '['/']'), 4635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this helper function matches and consumes the specified RHS token if 4645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// present. If not present, it emits the specified diagnostic indicating 4655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// that the parser failed to match the RHS of the token at LHSLoc. LHSName 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// should be the name of the unmatched LHS token. This returns the location 4675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the consumed token. 4685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MatchRHSPunctuation(tok::TokenKind RHSTok, 4695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LHSLoc); 4701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 4725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// input. If so, it is consumed and false is returned. 4735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 4745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If the input is malformed, this emits the specified diagnostic. Next, if 4755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 4765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// returned. 4775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned Diag, 4785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *DiagMsg = "", 4795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind SkipToTok = tok::unknown); 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4819ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor /// \brief The parser expects a semicolon and, if present, will consume it. 4829ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor /// 4839ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor /// If the next token is not a semicolon, this emits the specified diagnostic, 4849ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor /// or, if there's just some closing-delimiter noise (e.g., ')' or ']') prior 4859ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor /// to the semicolon, consumes that extra token. 4869ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor bool ExpectAndConsumeSemi(unsigned DiagID); 4879ba23b4ceacd77cd264501690a7a9e94184ef71bDouglas Gregor 4885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scope manipulation 4901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4918935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// ParseScope - Introduces a new scope for parsing. The kind of 4928935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// scope is determined by ScopeFlags. Objects of this type should 4938935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// be created on the stack to coincide with the position where the 4948935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// parser enters the new scope, and this object's constructor will 4958935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// create that new scope. Similarly, once the object is destroyed 4968935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// the parser will exit the scope. 4978935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor class ParseScope { 4988935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Parser *Self; 4998935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope(const ParseScope&); // do not implement 5008935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope& operator=(const ParseScope&); // do not implement 5018935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 5028935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor public: 5038935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ParseScope - Construct a new object to manage a scope in the 5048935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // parser Self where the new Scope is created with the flags 5058935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ScopeFlags, but only when ManageScope is true (the default). If 5068935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ManageScope is false, this object does nothing. 5071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParseScope(Parser *Self, unsigned ScopeFlags, bool ManageScope = true) 5088935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor : Self(Self) { 5098935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor if (ManageScope) 5108935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self->EnterScope(ScopeFlags); 5118935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor else 5128935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor this->Self = 0; 5138935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 5148935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 5158935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // Exit - Exit the scope associated with this object now, rather 5168935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // than waiting until the object is destroyed. 5178935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor void Exit() { 5188935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor if (Self) { 5198935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self->ExitScope(); 5208935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self = 0; 5218935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 5228935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 5238935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 5248935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ~ParseScope() { 5258935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Exit(); 5268935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 5278935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor }; 5288935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EnterScope - Start a new scope. 5305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EnterScope(unsigned ScopeFlags); 5311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ExitScope - Pop a scope off the scope stack. 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ExitScope(); 5345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Diagnostic Emission and Error recovery. 53715faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 5386aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregorpublic: 5393cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID); 5403cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner DiagnosticBuilder Diag(const Token &Tok, unsigned DiagID); 54115faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 5426aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregorprivate: 5431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void SuggestParentheses(SourceLocation Loc, unsigned DK, 5444b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange); 5454b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 5465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SkipUntil - Read tokens until we get to the specified token, then consume 54782c7e6d8215567935d3d52741ccca9876a8ea461Steve Naroff /// it (unless DontConsume is true). Because we cannot guarantee that the 5485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// token will ever occur, this skips to the next token, or to some likely 5495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 5505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// character. 5511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If SkipUntil finds the specified token, it returns true, otherwise it 5531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// returns false. 5545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(tok::TokenKind T, bool StopAtSemi = true, 5555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool DontConsume = false) { 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SkipUntil(&T, 1, StopAtSemi, DontConsume); 5575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(tok::TokenKind T1, tok::TokenKind T2, bool StopAtSemi = true, 5595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool DontConsume = false) { 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind TokArray[] = {T1, T2}; 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SkipUntil(TokArray, 2, StopAtSemi, DontConsume); 5625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(const tok::TokenKind *Toks, unsigned NumToks, 5645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool StopAtSemi = true, bool DontConsume = false); 5657ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 5665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5674cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Lexing and parsing of C++ inline methods. 5684cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5694cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis struct LexedMethod { 570d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *D; 57172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens Toks; 572d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor 573d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor /// \brief Whether this member function had an associated template 574d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor /// scope. When true, D is a template declaration. 575d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor /// othewise, it is a member function declaration. 576d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor bool TemplateScope; 577d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor 578d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall explicit LexedMethod(Decl *MD) : D(MD), TemplateScope(false) {} 5794cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis }; 5804cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 58172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// LateParsedDefaultArgument - Keeps track of a parameter that may 58272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// have a default argument that cannot be parsed yet because it 58372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// occurs within a member function declaration inside the class 58472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// (C++ [class.mem]p2). 58572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor struct LateParsedDefaultArgument { 586d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall explicit LateParsedDefaultArgument(Decl *P, 58772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens *Toks = 0) 58872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor : Param(P), Toks(Toks) { } 58972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 59072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// Param - The parameter declaration for this parameter. 591d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Param; 59272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 59372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// Toks - The sequence of tokens that comprises the default 59472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// argument expression, not including the '=' or the terminating 59572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// ')' or ','. This will be NULL for parameters that have no 59672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// default argument. 59772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens *Toks; 59872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor }; 5991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 60072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// LateParsedMethodDeclaration - A method declaration inside a class that 60172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// contains at least one entity whose parsing needs to be delayed 60272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// until the class itself is completely-defined, such as a default 60372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// argument (C++ [class.mem]p2). 60472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor struct LateParsedMethodDeclaration { 605d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall explicit LateParsedMethodDeclaration(Decl *M) 606d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor : Method(M), TemplateScope(false) { } 60772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 60872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// Method - The method declaration. 609d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *Method; 61072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 611d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor /// \brief Whether this member function had an associated template 612d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor /// scope. When true, D is a template declaration. 613d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor /// othewise, it is a member function declaration. 614d83d04041f64a2c89123d227fa8003b482391279Douglas Gregor bool TemplateScope; 6151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 61672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// DefaultArgs - Contains the parameters of the function and 61772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// their default arguments. At least one of the parameters will 61872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// have a default argument, but all of the parameters of the 61972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// method will be stored so that they can be reintroduced into 6201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// scope at the appropriate times. 62172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor llvm::SmallVector<LateParsedDefaultArgument, 8> DefaultArgs; 62272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor }; 62372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 62472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// LateParsedMethodDecls - During parsing of a top (non-nested) C++ 62572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// class, its method declarations that contain parts that won't be 62672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// parsed until after the definiton is completed (C++ [class.mem]p2), 62772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// the method declarations will be stored here with the tokens that 62872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// will be parsed to create those entities. 62972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor typedef std::list<LateParsedMethodDeclaration> LateParsedMethodDecls; 63072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 6314cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// LexedMethodsForTopClass - During parsing of a top (non-nested) C++ class, 6324cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// its inline method definitions and the inline method definitions of its 6334cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// nested classes are lexed and stored here. 63472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor typedef std::list<LexedMethod> LexedMethodsForTopClass; 63572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 6366569d68745c8213709740337d2be52b031384f58Douglas Gregor /// \brief Representation of a class that has been parsed, including 6376569d68745c8213709740337d2be52b031384f58Douglas Gregor /// any member function declarations or definitions that need to be 6386569d68745c8213709740337d2be52b031384f58Douglas Gregor /// parsed after the corresponding top-level class is complete. 6396569d68745c8213709740337d2be52b031384f58Douglas Gregor struct ParsingClass { 640d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParsingClass(Decl *TagOrTemplate, bool TopLevelClass) 6411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : TopLevelClass(TopLevelClass), TemplateScope(false), 6426569d68745c8213709740337d2be52b031384f58Douglas Gregor TagOrTemplate(TagOrTemplate) { } 6436569d68745c8213709740337d2be52b031384f58Douglas Gregor 6446569d68745c8213709740337d2be52b031384f58Douglas Gregor /// \brief Whether this is a "top-level" class, meaning that it is 6456569d68745c8213709740337d2be52b031384f58Douglas Gregor /// not nested within another class. 6466569d68745c8213709740337d2be52b031384f58Douglas Gregor bool TopLevelClass : 1; 6476569d68745c8213709740337d2be52b031384f58Douglas Gregor 6486569d68745c8213709740337d2be52b031384f58Douglas Gregor /// \brief Whether this class had an associated template 6496569d68745c8213709740337d2be52b031384f58Douglas Gregor /// scope. When true, TagOrTemplate is a template declaration; 6506569d68745c8213709740337d2be52b031384f58Douglas Gregor /// othewise, it is a tag declaration. 6516569d68745c8213709740337d2be52b031384f58Douglas Gregor bool TemplateScope : 1; 6526569d68745c8213709740337d2be52b031384f58Douglas Gregor 6536569d68745c8213709740337d2be52b031384f58Douglas Gregor /// \brief The class or class template whose definition we are parsing. 654d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TagOrTemplate; 65572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 65672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// MethodDecls - Method declarations that contain pieces whose 65772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// parsing will be delayed until the class is fully defined. 65872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor LateParsedMethodDecls MethodDecls; 65972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 66072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// MethodDefs - Methods whose definitions will be parsed once the 66172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// class has been fully defined. 66272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor LexedMethodsForTopClass MethodDefs; 6636569d68745c8213709740337d2be52b031384f58Douglas Gregor 6646569d68745c8213709740337d2be52b031384f58Douglas Gregor /// \brief Nested classes inside this class. 6656569d68745c8213709740337d2be52b031384f58Douglas Gregor llvm::SmallVector<ParsingClass*, 4> NestedClasses; 66672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor }; 6674cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 6686569d68745c8213709740337d2be52b031384f58Douglas Gregor /// \brief The stack of classes that is currently being 6696569d68745c8213709740337d2be52b031384f58Douglas Gregor /// parsed. Nested and local classes will be pushed onto this stack 6706569d68745c8213709740337d2be52b031384f58Douglas Gregor /// when they are parsed, and removed afterward. 6716569d68745c8213709740337d2be52b031384f58Douglas Gregor std::stack<ParsingClass *> ClassStack; 6724cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 6736569d68745c8213709740337d2be52b031384f58Douglas Gregor ParsingClass &getCurrentClass() { 6746569d68745c8213709740337d2be52b031384f58Douglas Gregor assert(!ClassStack.empty() && "No lexed method stacks!"); 6756569d68745c8213709740337d2be52b031384f58Douglas Gregor return *ClassStack.top(); 6764cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 6774cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 67854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall /// \brief RAII object used to inform the actions that we're 67954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall /// currently parsing a declaration. This is active when parsing a 68054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall /// variable's initializer, but not when parsing the body of a 68154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall /// class or function definition. 68254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall class ParsingDeclRAIIObject { 683f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema &Actions; 684f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Sema::ParsingDeclStackState State; 68554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall bool Popped; 686c9068d7dd94d439cec66c421115d15303e481025John McCall 68754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall public: 68854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclRAIIObject(Parser &P) : Actions(P.Actions) { 68954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall push(); 69054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 69154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 692c9068d7dd94d439cec66c421115d15303e481025John McCall ParsingDeclRAIIObject(Parser &P, ParsingDeclRAIIObject *Other) 693c9068d7dd94d439cec66c421115d15303e481025John McCall : Actions(P.Actions) { 694c9068d7dd94d439cec66c421115d15303e481025John McCall if (Other) steal(*Other); 695c9068d7dd94d439cec66c421115d15303e481025John McCall else push(); 696c9068d7dd94d439cec66c421115d15303e481025John McCall } 697c9068d7dd94d439cec66c421115d15303e481025John McCall 698c9068d7dd94d439cec66c421115d15303e481025John McCall /// Creates a RAII object which steals the state from a different 699c9068d7dd94d439cec66c421115d15303e481025John McCall /// object instead of pushing. 700c9068d7dd94d439cec66c421115d15303e481025John McCall ParsingDeclRAIIObject(ParsingDeclRAIIObject &Other) 701c9068d7dd94d439cec66c421115d15303e481025John McCall : Actions(Other.Actions) { 702c9068d7dd94d439cec66c421115d15303e481025John McCall steal(Other); 703c9068d7dd94d439cec66c421115d15303e481025John McCall } 704c9068d7dd94d439cec66c421115d15303e481025John McCall 70554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ~ParsingDeclRAIIObject() { 70654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall abort(); 70754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 70854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 70954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall /// Resets the RAII object for a new declaration. 71054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall void reset() { 71154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall abort(); 71254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall push(); 71354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 71454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 71554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall /// Signals that the context was completed without an appropriate 71654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall /// declaration being parsed. 71754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall void abort() { 718d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall pop(0); 71954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 72054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 721d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void complete(Decl *D) { 72254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall assert(!Popped && "ParsingDeclaration has already been popped!"); 72354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall pop(D); 72454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 72554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 72654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall private: 727c9068d7dd94d439cec66c421115d15303e481025John McCall void steal(ParsingDeclRAIIObject &Other) { 728c9068d7dd94d439cec66c421115d15303e481025John McCall State = Other.State; 729c9068d7dd94d439cec66c421115d15303e481025John McCall Popped = Other.Popped; 730c9068d7dd94d439cec66c421115d15303e481025John McCall Other.Popped = true; 731c9068d7dd94d439cec66c421115d15303e481025John McCall } 732c9068d7dd94d439cec66c421115d15303e481025John McCall 73354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall void push() { 73454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall State = Actions.PushParsingDeclaration(); 73554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall Popped = false; 73654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 73754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 738d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void pop(Decl *D) { 73954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall if (!Popped) { 74054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall Actions.PopParsingDeclaration(State, D); 74154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall Popped = true; 74254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 74354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 74454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall }; 74554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 74654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall /// A class for parsing a DeclSpec. 74754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall class ParsingDeclSpec : public DeclSpec { 74854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclRAIIObject ParsingRAII; 74954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 75054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall public: 751c9068d7dd94d439cec66c421115d15303e481025John McCall ParsingDeclSpec(Parser &P) : ParsingRAII(P) {} 752c9068d7dd94d439cec66c421115d15303e481025John McCall ParsingDeclSpec(ParsingDeclRAIIObject &RAII) : ParsingRAII(RAII) {} 753c9068d7dd94d439cec66c421115d15303e481025John McCall ParsingDeclSpec(Parser &P, ParsingDeclRAIIObject *RAII) 754c9068d7dd94d439cec66c421115d15303e481025John McCall : ParsingRAII(P, RAII) {} 75554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 756d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void complete(Decl *D) { 75754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingRAII.complete(D); 75854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 75954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 76054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall void abort() { 76154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingRAII.abort(); 76254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 76354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall }; 76454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 76554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall /// A class for parsing a declarator. 76654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall class ParsingDeclarator : public Declarator { 76754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclRAIIObject ParsingRAII; 76854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 76954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall public: 77054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclarator(Parser &P, const ParsingDeclSpec &DS, TheContext C) 77154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall : Declarator(DS, C), ParsingRAII(P) { 77254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 77354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 77454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall const ParsingDeclSpec &getDeclSpec() const { 77554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return static_cast<const ParsingDeclSpec&>(Declarator::getDeclSpec()); 77654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 77754abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 77854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingDeclSpec &getMutableDeclSpec() const { 77954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall return const_cast<ParsingDeclSpec&>(getDeclSpec()); 78054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 78154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 78254abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall void clear() { 78354abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall Declarator::clear(); 78454abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingRAII.reset(); 78554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 78654abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 787d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void complete(Decl *D) { 78854abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall ParsingRAII.complete(D); 78954abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall } 79054abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall }; 79154abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall 7921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief RAII object used to 7936569d68745c8213709740337d2be52b031384f58Douglas Gregor class ParsingClassDefinition { 7946569d68745c8213709740337d2be52b031384f58Douglas Gregor Parser &P; 7956569d68745c8213709740337d2be52b031384f58Douglas Gregor bool Popped; 7966569d68745c8213709740337d2be52b031384f58Douglas Gregor 7976569d68745c8213709740337d2be52b031384f58Douglas Gregor public: 798d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall ParsingClassDefinition(Parser &P, Decl *TagOrTemplate, bool TopLevelClass) 7991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : P(P), Popped(false) { 8006569d68745c8213709740337d2be52b031384f58Douglas Gregor P.PushParsingClass(TagOrTemplate, TopLevelClass); 8016569d68745c8213709740337d2be52b031384f58Douglas Gregor } 8026569d68745c8213709740337d2be52b031384f58Douglas Gregor 8036569d68745c8213709740337d2be52b031384f58Douglas Gregor /// \brief Pop this class of the stack. 8041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void Pop() { 8056569d68745c8213709740337d2be52b031384f58Douglas Gregor assert(!Popped && "Nested class has already been popped"); 8066569d68745c8213709740337d2be52b031384f58Douglas Gregor Popped = true; 8076569d68745c8213709740337d2be52b031384f58Douglas Gregor P.PopParsingClass(); 8086569d68745c8213709740337d2be52b031384f58Douglas Gregor } 8096569d68745c8213709740337d2be52b031384f58Douglas Gregor 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ~ParsingClassDefinition() { 8116569d68745c8213709740337d2be52b031384f58Douglas Gregor if (!Popped) 8121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump P.PopParsingClass(); 8136569d68745c8213709740337d2be52b031384f58Douglas Gregor } 8146569d68745c8213709740337d2be52b031384f58Douglas Gregor }; 8156569d68745c8213709740337d2be52b031384f58Douglas Gregor 8164d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief Contains information about any template-specific 8174d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// information that has been parsed prior to parsing declaration 8184d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// specifiers. 8194d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor struct ParsedTemplateInfo { 8201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParsedTemplateInfo() 8214d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor : Kind(NonTemplate), TemplateParams(0), TemplateLoc() { } 8224d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 8234d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor ParsedTemplateInfo(TemplateParameterLists *TemplateParams, 824c78c06d81f9838aea4198e4965cc1b26bb0bf838Douglas Gregor bool isSpecialization, 825c78c06d81f9838aea4198e4965cc1b26bb0bf838Douglas Gregor bool lastParameterListWasEmpty = false) 8264d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor : Kind(isSpecialization? ExplicitSpecialization : Template), 827c78c06d81f9838aea4198e4965cc1b26bb0bf838Douglas Gregor TemplateParams(TemplateParams), 828c78c06d81f9838aea4198e4965cc1b26bb0bf838Douglas Gregor LastParameterListWasEmpty(lastParameterListWasEmpty) { } 8294d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 83045f965581935791a018df829a14dff53c1dd8f47Douglas Gregor explicit ParsedTemplateInfo(SourceLocation ExternLoc, 83145f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation TemplateLoc) 8321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Kind(ExplicitInstantiation), TemplateParams(0), 833c78c06d81f9838aea4198e4965cc1b26bb0bf838Douglas Gregor ExternLoc(ExternLoc), TemplateLoc(TemplateLoc), 834c78c06d81f9838aea4198e4965cc1b26bb0bf838Douglas Gregor LastParameterListWasEmpty(false){ } 8354d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 8364d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief The kind of template we are parsing. 8374d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor enum { 8384d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief We are not parsing a template at all. 8394d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor NonTemplate = 0, 8404d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief We are parsing a template declaration. 8414d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor Template, 8424d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief We are parsing an explicit specialization. 8434d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor ExplicitSpecialization, 8444d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief We are parsing an explicit instantiation. 8454d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor ExplicitInstantiation 8464d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor } Kind; 8474d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 8484d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief The template parameter lists, for template declarations 8494d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// and explicit specializations. 8504d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor TemplateParameterLists *TemplateParams; 8514d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 85245f965581935791a018df829a14dff53c1dd8f47Douglas Gregor /// \brief The location of the 'extern' keyword, if any, for an explicit 85345f965581935791a018df829a14dff53c1dd8f47Douglas Gregor /// instantiation 85445f965581935791a018df829a14dff53c1dd8f47Douglas Gregor SourceLocation ExternLoc; 8551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8564d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief The location of the 'template' keyword, for an explicit 8574d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// instantiation. 8584d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor SourceLocation TemplateLoc; 859c78c06d81f9838aea4198e4965cc1b26bb0bf838Douglas Gregor 860c78c06d81f9838aea4198e4965cc1b26bb0bf838Douglas Gregor /// \brief Whether the last template parameter list was empty. 861c78c06d81f9838aea4198e4965cc1b26bb0bf838Douglas Gregor bool LastParameterListWasEmpty; 8624d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor }; 8631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 864d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void PushParsingClass(Decl *TagOrTemplate, bool TopLevelClass); 86537b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor void DeallocateParsedClasses(ParsingClass *Class); 86637b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor void PopParsingClass(); 86737b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor 868d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseCXXInlineMethodDef(AccessSpecifier AS, Declarator &D, 869d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall const ParsedTemplateInfo &TemplateInfo); 87037b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor void ParseLexedMethodDeclarations(ParsingClass &Class); 87137b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor void ParseLexedMethodDefs(ParsingClass &Class); 87214b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis bool ConsumeAndStoreUntil(tok::TokenKind T1, 87314b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis CachedTokens &Toks, 87414b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis bool StopAtSemi = true, 87514b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis bool ConsumeFinalToken = true) { 87614b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis return ConsumeAndStoreUntil(T1, T1, Toks, StopAtSemi, ConsumeFinalToken); 87714b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis } 8781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool ConsumeAndStoreUntil(tok::TokenKind T1, tok::TokenKind T2, 87937b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor CachedTokens &Toks, 88014b91628961ab50cc6e724bbcd408fdee100662dArgyrios Kyrtzidis bool StopAtSemi = true, 88137b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor bool ConsumeFinalToken = true); 8824d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 8834cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9: External Definitions. 88509a63c97b95eb4dc6fd6b2323929e8cf12af03ffDouglas Gregor DeclGroupPtrTy ParseExternalDeclaration(CXX0XAttributeList Attr, 88609a63c97b95eb4dc6fd6b2323929e8cf12af03ffDouglas Gregor ParsingDeclSpec *DS = 0); 887c82daefa3062721e98947e08193cd81b4e9df915Chris Lattner bool isDeclarationAfterDeclarator() const; 888004659a56916f2f81ede507c12516c146d6c0df3Chris Lattner bool isStartOfFunctionDefinition(const ParsingDeclarator &Declarator); 889bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt DeclGroupPtrTy ParseDeclarationOrFunctionDefinition(AttributeList *Attr, 8905aeccdbb4bdc94e48c04cacc59fa812af32109b2Anders Carlsson AccessSpecifier AS = AS_none); 8913acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian DeclGroupPtrTy ParseDeclarationOrFunctionDefinition(ParsingDeclSpec &DS, 8923acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AttributeList *Attr, 8933acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian AccessSpecifier AS = AS_none); 8943acd9aaa4ddd14afecb4f1c02ca6f585a6d51849Fariborz Jahanian 895d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseFunctionDefinition(ParsingDeclarator &D, 89652591bf224b2c43e2b00e265bb8599a620081925Douglas Gregor const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo()); 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseKNRParamDeclarations(Declarator &D); 898ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc, if non-NULL, is filled with the location of the last token of 899ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // the simple-asm. 90060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseSimpleAsm(SourceLocation *EndLoc = 0); 90160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseAsmStringLiteral(); 9025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9033536b443bc50d58a79f14fca9b6842541a434854Steve Naroff // Objective-C External Declarations 904d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCAtDirectives(); 905d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCAtClassDeclaration(SourceLocation atLoc); 906d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCAtInterfaceDeclaration(SourceLocation atLoc, 907dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff AttributeList *prefixAttrs = 0); 908d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void ParseObjCClassInstanceVariables(Decl *interfaceDecl, 90983c481ade785a919ba21a33f9a8b1b21c1212fb3Fariborz Jahanian tok::ObjCKeywordKind visibility, 91060fcceeedbfc8b4a99cb942e2bc5aeb9e2f92a1fSteve Naroff SourceLocation atLoc); 911d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall bool ParseObjCProtocolReferences(llvm::SmallVectorImpl<Decl *> &P, 91271b0addffbdeed29cc062c962e236c34107755d6Argyrios Kyrtzidis llvm::SmallVectorImpl<SourceLocation> &PLocs, 9131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool WarnOnDeclarations, 91471b0addffbdeed29cc062c962e236c34107755d6Argyrios Kyrtzidis SourceLocation &LAngleLoc, 915e13b9595dc1e2f4288bec34f3412359f648e84a5Chris Lattner SourceLocation &EndProtoLoc); 916d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void ParseObjCInterfaceDeclList(Decl *interfaceDecl, 917c81c8144a661a49d7b9dae8d2080dee2e43186ecChris Lattner tok::ObjCKeywordKind contextKey); 918d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCAtProtocolDeclaration(SourceLocation atLoc, 919b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner AttributeList *prefixAttrs = 0); 9201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 921d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ObjCImpDecl; 922d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall llvm::SmallVector<Decl *, 4> PendingObjCImpDecl; 9230416fb9f379b49abb3eb0c1cb2ca75107e5a71d1Steve Naroff 924d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCAtImplementationDeclaration(SourceLocation atLoc); 925d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCAtEndDeclaration(SourceRange atEnd); 926d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCAtAliasDeclaration(SourceLocation atLoc); 927d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCPropertySynthesize(SourceLocation atLoc); 928d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCPropertyDynamic(SourceLocation atLoc); 9291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9302fc5c2428ecb450a3256c8316b93b8655cb76a0fChris Lattner IdentifierInfo *ParseObjCSelectorPiece(SourceLocation &MethodLocation); 93134870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Definitions for Objective-c context sensitive keywords recognition. 93234870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner enum ObjCTypeQual { 93334870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner objc_in=0, objc_out, objc_inout, objc_oneway, objc_bycopy, objc_byref, 93434870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner objc_NumQuals 93534870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner }; 936a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek IdentifierInfo *ObjCTypeQuals[objc_NumQuals]; 9371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 938335a2d4122e41343fe11a775889b8bec5b14be60Fariborz Jahanian bool isTokIdentifier_in() const; 939d0f97d1716a138a8d9e0df8e5af77334663723d8Fariborz Jahanian 940b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ParseObjCTypeName(ObjCDeclSpec &DS, bool IsParameter); 941294494e1cce92043562b4680c613df7fd028c02eSteve Naroff void ParseObjCMethodRequirement(); 942d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCMethodPrototype(Decl *classOrCat, 943c81c8144a661a49d7b9dae8d2080dee2e43186ecChris Lattner tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword); 944d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCMethodDecl(SourceLocation mLoc, tok::TokenKind mType, 945d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *classDecl, 94600933591a2795d09dd1acff12a2d21bce7cb12c5Fariborz Jahanian tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword); 947d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void ParseObjCPropertyAttribute(ObjCDeclSpec &DS, Decl *ClassDecl, 948d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl **Methods, unsigned NumMethods); 9491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 950d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseObjCMethodDefinition(); 9511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.5: Expressions. 9546aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 95560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseExpression(); 95660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseConstantExpression(); 9572f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl // Expr that doesn't include commas. 95860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseAssignmentExpression(); 9592f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl 96060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseExpressionWithLeadingAt(SourceLocation AtLoc); 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 96260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseExpressionWithLeadingExtension(SourceLocation ExtLoc); 963adf077f46ba5cddcd801a647a5e9a3eb97060df4Eli Friedman 96460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseRHSOfBinaryExpression(ExprResult LHS, 9656aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor prec::Level MinPrec); 96660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCastExpression(bool isUnaryExpression, 967f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis bool isAddressOfOperand, 9682ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman bool &NotCastExpr, 969b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeOfCast); 97060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCastExpression(bool isUnaryExpression, 9712ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman bool isAddressOfOperand = false, 972b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeOfCast = ParsedType()); 9739c72c6088d591ace8503b842d39448c2040f3033John McCall 9749c72c6088d591ace8503b842d39448c2040f3033John McCall /// Returns true if the next token would start a postfix-expression 9759c72c6088d591ace8503b842d39448c2040f3033John McCall /// suffix. 9769c72c6088d591ace8503b842d39448c2040f3033John McCall bool isPostfixExpressionSuffixStart() { 9779c72c6088d591ace8503b842d39448c2040f3033John McCall tok::TokenKind K = Tok.getKind(); 9789c72c6088d591ace8503b842d39448c2040f3033John McCall return (K == tok::l_square || K == tok::l_paren || 9799c72c6088d591ace8503b842d39448c2040f3033John McCall K == tok::period || K == tok::arrow || 9809c72c6088d591ace8503b842d39448c2040f3033John McCall K == tok::plusplus || K == tok::minusminus); 9819c72c6088d591ace8503b842d39448c2040f3033John McCall } 9829c72c6088d591ace8503b842d39448c2040f3033John McCall 98360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParsePostfixExpressionSuffix(ExprResult LHS); 98460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseSizeofAlignofExpression(); 98560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseBuiltinPrimaryExpression(); 9861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 98760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseExprAfterTypeofSizeofAlignof(const Token &OpTok, 9885ab0640efb436a721d408c853b771932d1a6ffceArgyrios Kyrtzidis bool &isCastExpr, 989b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &CastTy, 9905ab0640efb436a721d408c853b771932d1a6ffceArgyrios Kyrtzidis SourceRange &CastRange); 9910cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis 992ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall typedef llvm::SmallVector<Expr*, 20> ExprListTy; 993ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall typedef llvm::SmallVector<SourceLocation, 20> CommaLocsTy; 9940cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis 9950cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis /// ParseExpressionList - Used for C/C++ (argument-)expression-list. 996ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall bool ParseExpressionList(llvm::SmallVectorImpl<Expr*> &Exprs, 997ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall llvm::SmallVectorImpl<SourceLocation> &CommaLocs, 998f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall void (Sema::*Completer)(Scope *S, 999f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Expr *Data, 1000f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall Expr **Args, 1001f312b1ea179f1c44371f9ee0cd0bc006f612de11John McCall unsigned NumArgs) = 0, 1002ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall Expr *Data = 0); 1003d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParenParseOption - Control what ParseParenExpression will parse. 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum ParenParseOption { 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SimpleExpr, // Only parse '(' expression ')' 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundStmt, // Also allow '(' compound-statement ')' 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundLiteral, // Also allow '(' type-name ')' '{' ... '}' 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CastExpr // Also allow '(' type-name ')' <anything> 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 101160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseParenExpression(ParenParseOption &ExprType, 10120350ca519405051e8d45d12ee7d09569a6a9c4c9Argyrios Kyrtzidis bool stopIfCastExpr, 1013b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType TypeOfCast, 1014b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &CastTy, 1015d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl SourceLocation &RParenLoc); 10161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 101760d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXAmbiguousParenExpression(ParenParseOption &ExprType, 1018b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType &CastTy, 1019f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation LParenLoc, 1020f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis SourceLocation &RParenLoc); 10211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCompoundLiteralExpression(ParsedType Ty, 1023d974a7b72eb84cdc735b189bcea56fd37e13ebf6Argyrios Kyrtzidis SourceLocation LParenLoc, 1024d974a7b72eb84cdc735b189bcea56fd37e13ebf6Argyrios Kyrtzidis SourceLocation RParenLoc); 10251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseStringLiteralExpression(); 1027eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1028eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis //===--------------------------------------------------------------------===// 1029eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // C++ Expressions 103060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXIdExpression(bool isAddressOfOperand = false); 10314bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 10321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS, 1033b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1034b10cd04880672103660e5844e51ee91af7361a20Douglas Gregor bool EnteringContext, 1035d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor bool *MayBePseudoDestructor = 0); 10361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C++ 5.2p1: C++ Casts 103960d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXCasts(); 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1042c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // C++ 5.2p1: C++ Type Identification 104360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXTypeid(); 1044c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 1045c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl //===--------------------------------------------------------------------===// 104601b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet // C++ : Microsoft __uuidof Expression 104701b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet ExprResult ParseCXXUuidof(); 104801b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet 104901b7c3028da5bbcb9f8e52ba67e4613070de0e60Francois Pichet //===--------------------------------------------------------------------===// 1050d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor // C++ 5.2.4: C++ Pseudo-Destructor Expressions 105160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXPseudoDestructor(ExprArg Base, SourceLocation OpLoc, 1052d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor tok::TokenKind OpKind, 1053d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor CXXScopeSpec &SS, 1054b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType); 1055d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor 1056d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor //===--------------------------------------------------------------------===// 10574cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // C++ 9.3.2: C++ 'this' pointer 105860d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXThis(); 10594cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 10604cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 106150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner // C++ 15: C++ Throw Expression 106260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseThrowExpression(); 1063ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc is filled with the location of the last token of the specification. 10647dc813462dd9fd3f6f4296f896a12de14264fef8Sebastian Redl bool ParseExceptionSpecification(SourceLocation &EndLoc, 1065b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall llvm::SmallVectorImpl<ParsedType> &Exns, 1066b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall llvm::SmallVectorImpl<SourceRange> &Ranges, 10677dc813462dd9fd3f6f4296f896a12de14264fef8Sebastian Redl bool &hasAnyExceptionSpec); 106850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 106950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner //===--------------------------------------------------------------------===// 1070dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor // C++0x 8: Function declaration trailing-return-type 1071dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor TypeResult ParseTrailingReturnType(); 1072dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor 1073dab60ad68a3a98d687305941a3852e793705f945Douglas Gregor //===--------------------------------------------------------------------===// 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C++ 2.13.5: C++ Boolean Literals 107560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXBoolLiteral(); 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1078987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // C++ 5.2.3: Explicit type conversion (functional notation) 107960d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXTypeConstructExpression(const DeclSpec &DS); 1080987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 10816aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor bool isCXXSimpleTypeSpecifier() const; 10826aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor 1083987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 1084987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// This should only be called when the current token is known to be part of 1085987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// simple-type-specifier. 1086987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis void ParseCXXSimpleTypeSpecifier(DeclSpec &DS); 1087987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 10882f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor bool ParseCXXTypeSpecifierSeq(DeclSpec &DS); 10892f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 1090987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 10914c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // C++ 5.3.4 and 5.3.5: C++ new and delete 1092ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall bool ParseExpressionListOrTypeId(llvm::SmallVectorImpl<Expr*> &Exprs, 1093ca0408fb49c1370430672acf2d770b7151cf71deJohn McCall Declarator &D); 10944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl void ParseDirectNewDeclarator(Declarator &D); 109560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXNewExpression(bool UseGlobal, SourceLocation Start); 109660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXXDeleteExpression(bool UseGlobal, 109759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner SourceLocation Start); 10984c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 10994c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl //===--------------------------------------------------------------------===// 110099e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor // C++ if/switch/while condition expression. 110160d7b3a319d84d688752be3870615ac0f111fb16John McCall bool ParseCXXCondition(ExprResult &ExprResult, Decl *&DeclResult, 1102586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor SourceLocation Loc, bool ConvertToBoolean); 110371b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 110471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis //===--------------------------------------------------------------------===// 110512e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor // C++ types 110612e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor 110712e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor //===--------------------------------------------------------------------===// 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.8: Initialization. 11091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11100eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// ParseInitializer 11110eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// initializer: [C99 6.7.8] 11120eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// assignment-expression 11130eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// '{' ... 111460d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseInitializer() { 11150eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner if (Tok.isNot(tok::l_brace)) 111620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ParseAssignmentExpression(); 11170eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner return ParseBraceInitializer(); 11180eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner } 111960d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseBraceInitializer(); 112060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseInitializerWithPotentialDesignator(); 11211d922960e083906a586609ac6978678147250177Sebastian Redl 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1123296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // clang Expressions 11241d922960e083906a586609ac6978678147250177Sebastian Redl 112560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseBlockLiteralExpression(); // ^{...} 1126296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff 1127296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff //===--------------------------------------------------------------------===// 11285508518a2702b00be3b15a26d772bde968972f54Anders Carlsson // Objective-C Expressions 112960d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseObjCAtExpression(SourceLocation AtLocation); 113060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseObjCStringLiteral(SourceLocation AtLoc); 113160d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseObjCEncodeExpression(SourceLocation AtLoc); 113260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseObjCSelectorExpression(SourceLocation AtLoc); 113360d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseObjCProtocolExpression(SourceLocation AtLoc); 11341b730e847ded503f2e615154035c083c4f94a067Douglas Gregor bool isSimpleObjCMessageExpression(); 113560d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseObjCMessageExpression(); 113660d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseObjCMessageExpressionBody(SourceLocation LBracloc, 11372725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor SourceLocation SuperLoc, 1138b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ReceiverType, 11391d922960e083906a586609ac6978678147250177Sebastian Redl ExprArg ReceiverExpr); 114060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseAssignmentExprWithObjCMessageExprStart( 11412725ca8eb3354975ca77ed4b88ede7b60b216b9aDouglas Gregor SourceLocation LBracloc, SourceLocation SuperLoc, 1142b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ReceiverType, ExprArg ReceiverExpr); 11436aa14d832704ae176c92d4e0f22dfb3f3d83a70aDouglas Gregor bool ParseObjCXXMessageReceiver(bool &IsExpr, void *&TypeOrExpr); 114461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 11455508518a2702b00be3b15a26d772bde968972f54Anders Carlsson //===--------------------------------------------------------------------===// 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.8: Statements and Blocks. 114761364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 114860d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseStatement() { 1149c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtVector Stmts(Actions); 1150c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian return ParseStatementOrDeclaration(Stmts, true); 115161364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 1152c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian StmtResult ParseStatementOrDeclaration(StmtVector& Stmts, 1153c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian bool OnlyStatement = false); 115460d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseLabeledStatement(AttributeList *Attr); 115560d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseCaseStatement(AttributeList *Attr); 115660d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseDefaultStatement(AttributeList *Attr); 115760d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseCompoundStatement(AttributeList *Attr, 1158bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt bool isStmtExpr = false); 115960d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseCompoundStatementBody(bool isStmtExpr = false); 116060d7b3a319d84d688752be3870615ac0f111fb16John McCall bool ParseParenExprOrCondition(ExprResult &ExprResult, 1161d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *&DeclResult, 1162586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor SourceLocation Loc, 1163586596fd7f7a336a2847b300c80614dcf39ab6d5Douglas Gregor bool ConvertToBoolean); 116460d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseIfStatement(AttributeList *Attr); 116560d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseSwitchStatement(AttributeList *Attr); 116660d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseWhileStatement(AttributeList *Attr); 116760d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseDoStatement(AttributeList *Attr); 116860d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseForStatement(AttributeList *Attr); 116960d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseGotoStatement(AttributeList *Attr); 117060d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseContinueStatement(AttributeList *Attr); 117160d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseBreakStatement(AttributeList *Attr); 117260d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseReturnStatement(AttributeList *Attr); 117360d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseAsmStatement(bool &msAsm); 117460d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult FuzzyParseMicrosoftAsmStatement(); 1175ff93dbd887e40588ed55d135037bb9287488b285Anders Carlsson bool ParseAsmOperandsOpt(llvm::SmallVectorImpl<IdentifierInfo *> &Names, 1176ff93dbd887e40588ed55d135037bb9287488b285Anders Carlsson llvm::SmallVectorImpl<ExprTy *> &Constraints, 1177ff93dbd887e40588ed55d135037bb9287488b285Anders Carlsson llvm::SmallVectorImpl<ExprTy *> &Exprs); 1178a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 1179a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl //===--------------------------------------------------------------------===// 1180a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl // C++ 6: Statements and Blocks 1181a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 118260d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseCXXTryBlock(AttributeList *Attr); 118360d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseCXXTryBlockCommon(SourceLocation TryLoc); 118460d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseCXXCatchBlock(); 1185a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 1186a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl //===--------------------------------------------------------------------===// 1187a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl // Objective-C Statements 1188a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 118960d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseObjCAtStatement(SourceLocation atLoc); 119060d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseObjCTryStmt(SourceLocation atLoc); 119160d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseObjCThrowStmt(SourceLocation atLoc); 119260d7b3a319d84d688752be3870615ac0f111fb16John McCall StmtResult ParseObjCSynchronizedStmt(SourceLocation atLoc); 1193b235fc2cf37621c7fc6511bb2b8788c95f9fb9fcAnders Carlsson 11945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7: Declarations. 119767d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall 119867d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall /// A context for parsing declaration specifiers. TODO: flesh this 119967d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall /// out, there are other significant restrictions on specifiers than 120067d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall /// would be best implemented in the parser. 120167d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall enum DeclSpecContext { 120267d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall DSC_normal, // normal context 12030efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor DSC_class, // class context, enables 'friend' 12040efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor DSC_top_level // top-level/namespace declaration context 120567d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall }; 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1207c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian DeclGroupPtrTy ParseDeclaration(StmtVector &Stmts, 1208c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian unsigned Context, SourceLocation &DeclEnd, 1209bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt CXX0XAttributeList Attr); 1210c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian DeclGroupPtrTy ParseSimpleDeclaration(StmtVector &Stmts, 1211c5be7b0fc804d8e6f87298ec03c94d8cccd74f29Fariborz Jahanian unsigned Context, 1212bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt SourceLocation &DeclEnd, 12135c5db553b5c256d0a6f55dde7325c1c829b88e8eChris Lattner AttributeList *Attr, 12145c5db553b5c256d0a6f55dde7325c1c829b88e8eChris Lattner bool RequireSemi); 121554abf7d4fa3123b8324c09d2a4dfb789fd818403John McCall DeclGroupPtrTy ParseDeclGroup(ParsingDeclSpec &DS, unsigned Context, 1216d8ac05753dc4506224d445ff98399c01da3136e5John McCall bool AllowFunctionDefinitions, 1217d8ac05753dc4506224d445ff98399c01da3136e5John McCall SourceLocation *DeclEnd = 0); 1218d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseDeclarationAfterDeclarator(Declarator &D, 1219e542c862bdf9a9bcb4f468be8fa6561372430611Douglas Gregor const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo()); 1220d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseFunctionStatementBody(Decl *Decl); 1221d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseFunctionTryBlock(Decl *Decl); 1222d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 1223f4382f50b7ab9f445c3f5b3ddaa59e6da25ea3bbChris Lattner bool ParseImplicitInt(DeclSpec &DS, CXXScopeSpec *SS, 12244d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor const ParsedTemplateInfo &TemplateInfo, 1225e40c295d017a8f75a945fe9ed2aa9d8bb7a7341aChris Lattner AccessSpecifier AS); 12260efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor DeclSpecContext getDeclSpecContextFromDeclaratorContext(unsigned Context); 12271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void ParseDeclarationSpecifiers(DeclSpec &DS, 12284d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo(), 122967d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall AccessSpecifier AS = AS_none, 123067d1a67f3db2f1aa69083c5c94164d6e0ee05b32John McCall DeclSpecContext DSC = DSC_normal); 12311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool ParseOptionalTypeSpecifier(DeclSpec &DS, bool &isInvalid, 12327a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner const char *&PrevSpec, 1233fec54013fcd0eb72642741584ca04c1bc292bef8John McCall unsigned &DiagID, 1234d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo(), 1235d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl bool SuppressDeclarations = false); 12364d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 12375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseSpecifierQualifierList(DeclSpec &DS); 12381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1239d32b0225e29fcafb2b2b2a4b1c51dcb1518af9c6Douglas Gregor void ParseObjCTypeQualifierList(ObjCDeclSpec &DS, bool IsParameter); 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12414c97d762d8c5a84f6554e5bfb31d28c90df64158Chris Lattner void ParseEnumSpecifier(SourceLocation TagLoc, DeclSpec &DS, 12429b9edd619a7e616d3287435cb5a3f9b1aea648e8Douglas Gregor const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo(), AccessSpecifier AS = AS_none); 1243d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void ParseEnumBody(SourceLocation StartLoc, Decl *TagDecl); 12445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseStructUnionBody(SourceLocation StartLoc, unsigned TagType, 1245d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TagDecl); 1246bdd563ec391b0a83fc6d04b8a8ea3022aa702f74John McCall 1247bdd563ec391b0a83fc6d04b8a8ea3022aa702f74John McCall struct FieldCallback { 1248d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall virtual Decl *invoke(FieldDeclarator &Field) = 0; 12496c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall virtual ~FieldCallback() {} 12506c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall 12516c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall private: 12526c94a6d77f456f23ecd4c2061e6413786b5e6571John McCall virtual void _anchor(); 1253bdd563ec391b0a83fc6d04b8a8ea3022aa702f74John McCall }; 1254d0014540005f2a5ab837365db6bd40f479406758John McCall struct ObjCPropertyCallback; 1255bdd563ec391b0a83fc6d04b8a8ea3022aa702f74John McCall 1256bdd563ec391b0a83fc6d04b8a8ea3022aa702f74John McCall void ParseStructDeclaration(DeclSpec &DS, FieldCallback &Callback); 12571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12589497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor bool isDeclarationSpecifier(bool DisambiguatingWithExpression = false); 1259eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis bool isTypeSpecifierQualifier(); 12605f8aa696619e32bf307232841fedb704ba733b4dSteve Naroff bool isTypeQualifier() const; 1261b3a4e432c90be98c6d918087750397e86d030368Chris Lattner 1262b3a4e432c90be98c6d918087750397e86d030368Chris Lattner /// isKnownToBeTypeSpecifier - Return true if we know that the specified token 1263b3a4e432c90be98c6d918087750397e86d030368Chris Lattner /// is definitely a type-specifier. Return false if it isn't part of a type 1264b3a4e432c90be98c6d918087750397e86d030368Chris Lattner /// specifier or if we're not sure. 1265b3a4e432c90be98c6d918087750397e86d030368Chris Lattner bool isKnownToBeTypeSpecifier(const Token &Tok) const; 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12675404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isDeclarationStatement - Disambiguates between a declaration or an 12685404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// expression statement, when parsing function bodies. 12695404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns true for declaration, false for expression. 12705404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isDeclarationStatement() { 12715404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis if (getLang().CPlusPlus) 12725404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis return isCXXDeclarationStatement(); 12739497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor return isDeclarationSpecifier(true); 12745404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 12755404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 1276bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// isSimpleDeclaration - Disambiguates between a declaration or an 1277bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// expression, mainly used for the C 'clause-1' or the C++ 1278bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis // 'for-init-statement' part of a 'for' statement. 1279bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// Returns true for declaration, false for expression. 1280bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis bool isSimpleDeclaration() { 1281bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis if (getLang().CPlusPlus) 1282bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis return isCXXSimpleDeclaration(); 12839497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor return isDeclarationSpecifier(true); 1284bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis } 1285bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis 12869497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor /// \brief Determine whether we are currently at the start of an Objective-C 12879497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor /// class message that appears to be missing the open bracket '['. 12889497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor bool isStartOfObjCClassMessageMissingOpenBracket(); 12899497a73ad0d54859edbf48beb93ebb19a7ae50c9Douglas Gregor 12900efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor /// \brief Starting with a scope specifier, identifier, or 12910efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor /// template-id that refers to the current class, determine whether 12920efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor /// this is a constructor declarator. 12930efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor bool isConstructorDeclarator(); 12940efc2c1716be4f1c5f1343cad3b047e74861f030Douglas Gregor 12958b642592a35167a3780074e78674e0bece87c40cDouglas Gregor /// \brief Specifies the context in which type-id/expression 12968b642592a35167a3780074e78674e0bece87c40cDouglas Gregor /// disambiguation will occur. 12978b642592a35167a3780074e78674e0bece87c40cDouglas Gregor enum TentativeCXXTypeIdContext { 12988b642592a35167a3780074e78674e0bece87c40cDouglas Gregor TypeIdInParens, 12998b642592a35167a3780074e78674e0bece87c40cDouglas Gregor TypeIdAsTemplateArgument 13008b642592a35167a3780074e78674e0bece87c40cDouglas Gregor }; 13018b642592a35167a3780074e78674e0bece87c40cDouglas Gregor 13028b642592a35167a3780074e78674e0bece87c40cDouglas Gregor 130378c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// isTypeIdInParens - Assumes that a '(' was parsed and now we want to know 130478c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// whether the parens contain an expression or a type-id. 130578c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// Returns true for a type-id and false for an expression. 1306f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis bool isTypeIdInParens(bool &isAmbiguous) { 130778c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis if (getLang().CPlusPlus) 1308f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return isCXXTypeId(TypeIdInParens, isAmbiguous); 1309f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis isAmbiguous = false; 131078c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis return isTypeSpecifierQualifier(); 131178c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis } 1312f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis bool isTypeIdInParens() { 1313f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis bool isAmbiguous; 1314f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return isTypeIdInParens(isAmbiguous); 1315f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 131678c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis 13175404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXDeclarationStatement - C++-specialized function that disambiguates 13185404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// between a declaration or an expression statement, when parsing function 13195404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// bodies. Returns true for declaration, false for expression. 13205404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isCXXDeclarationStatement(); 13215404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 13225404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXSimpleDeclaration - C++-specialized function that disambiguates 13235404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// between a simple-declaration or an expression-statement. 13245404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 13255404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 13265404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns false if the statement is disambiguated as expression. 13275404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isCXXSimpleDeclaration(); 13285404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 13295404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXFunctionDeclarator - Disambiguates between a function declarator or 13305404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// a constructor-style initializer, when parsing declaration statements. 13315404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns true for function declarator and false for constructor-style 1332e75d849d9141d8e47d05a91b7b5c04194854e47aArgyrios Kyrtzidis /// initializer. If 'warnIfAmbiguous' is true a warning will be emitted to 1333259b0d91f2ff90d8daf39221fe133bf1596c5ffbArgyrios Kyrtzidis /// indicate that the parens were disambiguated as function declarator. 13345404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 13355404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 1336e75d849d9141d8e47d05a91b7b5c04194854e47aArgyrios Kyrtzidis bool isCXXFunctionDeclarator(bool warnIfAmbiguous); 13375404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 1338a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// isCXXConditionDeclaration - Disambiguates between a declaration or an 1339a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// expression for a condition of a if/switch/while/for statement. 1340a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 1341a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 1342a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis bool isCXXConditionDeclaration(); 1343a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis 1344f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis bool isCXXTypeId(TentativeCXXTypeIdContext Context, bool &isAmbiguous); 1345f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis bool isCXXTypeId(TentativeCXXTypeIdContext Context) { 1346f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis bool isAmbiguous; 1347f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis return isCXXTypeId(Context, isAmbiguous); 1348f58f45e6d76792df8c643ce1c6d364dce5db4826Argyrios Kyrtzidis } 134978c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis 1350b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// TPResult - Used as the result value for functions whose purpose is to 1351b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// disambiguate C++ constructs by "tentatively parsing" them. 1352b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// This is a class instead of a simple enum because the implicit enum-to-bool 1353b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// conversions may cause subtle bugs. 1354b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis class TPResult { 1355b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis enum Result { 1356b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_true, 1357b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_false, 1358b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_ambiguous, 1359b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_error 1360b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis }; 1361b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis Result Res; 1362b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult(Result result) : Res(result) {} 1363b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis public: 1364b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult True() { return TPR_true; } 1365b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult False() { return TPR_false; } 1366b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult Ambiguous() { return TPR_ambiguous; } 1367b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult Error() { return TPR_error; } 1368b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis 1369b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis bool operator==(const TPResult &RHS) const { return Res == RHS.Res; } 1370b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis bool operator!=(const TPResult &RHS) const { return Res != RHS.Res; } 1371b47e38683f288cd4a73098091d629df417377a6bArgyrios Kyrtzidis }; 1372b47e38683f288cd4a73098091d629df417377a6bArgyrios Kyrtzidis 1373b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// isCXXDeclarationSpecifier - Returns TPResult::True() if it is a 1374b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// declaration specifier, TPResult::False() if it is not, 1375b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// TPResult::Ambiguous() if it could be either a decl-specifier or a 1376b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// function-style cast, and TPResult::Error() if a parsing error was 1377b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// encountered. 13785404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Doesn't consume tokens. 1379b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult isCXXDeclarationSpecifier(); 13805404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 13815404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis // "Tentative parsing" functions, used for disambiguation. If a parsing error 1382b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // is encountered they will return TPResult::Error(). 1383b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // Returning TPResult::True()/False() indicates that the ambiguity was 1384b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // resolved and tentative parsing may stop. TPResult::Ambiguous() indicates 1385b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // that more tentative parsing is necessary for disambiguation. 13865404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis // They all consume tokens, so backtracking should be used after calling them. 13875404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 1388b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseDeclarationSpecifier(); 1389b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseSimpleDeclaration(); 1390b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseTypeofSpecifier(); 1391b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseInitDeclaratorList(); 139278c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis TPResult TryParseDeclarator(bool mayBeAbstract, bool mayHaveIdentifier=true); 1393b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseParameterDeclarationClause(); 1394b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseFunctionDeclarator(); 1395b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseBracketDeclarator(); 13965404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 1397ef65f06e8e440aec541442cfd73a8a836e9bc842Sebastian Redl TypeResult ParseTypeName(SourceRange *Range = 0); 139898eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump void ParseBlockId(); 1399ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc, if non-NULL, is filled with the location of the last token of 1400ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // the attribute list. 1401bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt CXX0XAttributeList ParseCXX0XAttributes(SourceLocation *EndLoc = 0); 1402334d47e92e9f241576fdeb7477b69a03136ba854Francois Pichet void ParseMicrosoftAttributes(); 1403bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt AttributeList *ParseGNUAttributes(SourceLocation *EndLoc = 0); 1404290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman AttributeList *ParseMicrosoftDeclSpec(AttributeList* CurrAttr = 0); 1405290eeb0ec2b6b91f3621e05ef541deb257fbea73Eli Friedman AttributeList *ParseMicrosoftTypeAttributes(AttributeList* CurrAttr = 0); 140652fc314e1b5e1baee6305067cf831763d02bd243Dawn Perchik AttributeList *ParseBorlandTypeAttributes(AttributeList* CurrAttr = 0); 1407d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff void ParseTypeofSpecifier(DeclSpec &DS); 14086fd634f4ac59f5923cffadadb99d19f23c18707aAnders Carlsson void ParseDecltypeSpecifier(DeclSpec &DS); 1409bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 141060d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseCXX0XAlignArgument(SourceLocation Start); 1411eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1412eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// DeclaratorScopeObj - RAII object used in Parser::ParseDirectDeclarator to 1413eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// enter a new C++ declarator scope and exit it when the function is 1414eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// finished. 1415eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis class DeclaratorScopeObj { 1416eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Parser &P; 1417751810234ffb45327f23c5f9fda0b944e480bd2bArgyrios Kyrtzidis CXXScopeSpec &SS; 1418f37006bc8a9d398d40d6ce329f023ed1a92fe484Argyrios Kyrtzidis bool EnteredScope; 1419f7f3d0db754db0500b56d49ac19f795f13965912John McCall bool CreatedScope; 1420eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis public: 1421f37006bc8a9d398d40d6ce329f023ed1a92fe484Argyrios Kyrtzidis DeclaratorScopeObj(Parser &p, CXXScopeSpec &ss) 1422f7f3d0db754db0500b56d49ac19f795f13965912John McCall : P(p), SS(ss), EnteredScope(false), CreatedScope(false) {} 1423eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1424eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis void EnterDeclaratorScope() { 14252bcb3439b50c7f227a21d7118a2a76904ec60331Argyrios Kyrtzidis assert(!EnteredScope && "Already entered the scope!"); 1426f37006bc8a9d398d40d6ce329f023ed1a92fe484Argyrios Kyrtzidis assert(SS.isSet() && "C++ scope was not set!"); 1427f7f3d0db754db0500b56d49ac19f795f13965912John McCall 1428f7f3d0db754db0500b56d49ac19f795f13965912John McCall CreatedScope = true; 1429f7f3d0db754db0500b56d49ac19f795f13965912John McCall P.EnterScope(0); // Not a decl scope. 1430f7f3d0db754db0500b56d49ac19f795f13965912John McCall 143123c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor if (!P.Actions.ActOnCXXEnterDeclaratorScope(P.getCurScope(), SS)) 14323fdbed594f4cb238fe37cad2ec3fefa3b6f67125Douglas Gregor EnteredScope = true; 1433eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 1434eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1435eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ~DeclaratorScopeObj() { 1436f37006bc8a9d398d40d6ce329f023ed1a92fe484Argyrios Kyrtzidis if (EnteredScope) { 1437f37006bc8a9d398d40d6ce329f023ed1a92fe484Argyrios Kyrtzidis assert(SS.isSet() && "C++ scope was cleared ?"); 143823c94dbb6631fecdb55ba401aa93722803d980c6Douglas Gregor P.Actions.ActOnCXXExitDeclaratorScope(P.getCurScope(), SS); 1439f37006bc8a9d398d40d6ce329f023ed1a92fe484Argyrios Kyrtzidis } 1440f7f3d0db754db0500b56d49ac19f795f13965912John McCall if (CreatedScope) 1441f7f3d0db754db0500b56d49ac19f795f13965912John McCall P.ExitScope(); 1442eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 1443eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis }; 14441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParseDeclarator - Parse and verify a newly-initialized declarator. 14465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseDeclarator(Declarator &D); 14474c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl /// A function that parses a variant of direct-declarator. 14484c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl typedef void (Parser::*DirectDeclParseFunction)(Declarator&); 14494c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl void ParseDeclaratorInternal(Declarator &D, 14504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl DirectDeclParseFunction DirectDeclParser); 1451bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt void ParseTypeQualifierListOpt(DeclSpec &DS, bool GNUAttributesAllowed = true, 1452bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt bool CXX0XAttributesAllowed = true); 14535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseDirectDeclarator(Declarator &D); 14545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseParenDeclarator(Declarator &D); 14557399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner void ParseFunctionDeclarator(SourceLocation LParenLoc, Declarator &D, 14567399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner AttributeList *AttrList = 0, 14577399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner bool RequiresArg = false); 145866d28650752eeac0b02802a1d8cea425cb6b1c0fChris Lattner void ParseFunctionDeclaratorIdentifierList(SourceLocation LParenLoc, 145983a944763b0948c608eb48f101ec10a1ae5da46aChris Lattner IdentifierInfo *FirstIdent, 146083a944763b0948c608eb48f101ec10a1ae5da46aChris Lattner SourceLocation FirstIdentLoc, 146166d28650752eeac0b02802a1d8cea425cb6b1c0fChris Lattner Declarator &D); 14625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseBracketDeclarator(Declarator &D); 14631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14648f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner //===--------------------------------------------------------------------===// 14658f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner // C++ 7: Declarations [dcl.dcl] 14661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1467bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt bool isCXX0XAttributeSpecifier(bool FullLookahead = false, 1468bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt tok::TokenKind *After = 0); 1469bbd37c62e34db3f5a95c899723484a76c71d7757Sean Hunt 1470d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl Decl *ParseNamespace(unsigned Context, SourceLocation &DeclEnd, 1471d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation InlineLoc = SourceLocation()); 1472d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseLinkage(ParsingDeclSpec &DS, unsigned Context); 1473d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseUsingDirectiveOrDeclaration(unsigned Context, 1474d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation &DeclEnd, 1475d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl CXX0XAttributeList Attrs); 1476d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseUsingDirective(unsigned Context, SourceLocation UsingLoc, 1477d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation &DeclEnd, AttributeList *Attr); 1478d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseUsingDeclaration(unsigned Context, SourceLocation UsingLoc, 1479d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation &DeclEnd, 1480d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl AccessSpecifier AS = AS_none); 1481d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseStaticAssertDeclaration(SourceLocation &DeclEnd); 1482d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseNamespaceAlias(SourceLocation NamespaceLoc, 1483d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation AliasLoc, IdentifierInfo *Alias, 1484d078e641450bbc5a20df8d3b54f87b27e398acb3Sebastian Redl SourceLocation &DeclEnd); 14851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1486e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor //===--------------------------------------------------------------------===// 1487e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor // C++ 9: classes [class] and C structs/unions. 14881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypeResult ParseClassName(SourceLocation &EndLocation, 14899ab14541716928894821cf5d53d6b4c95ffdf3a3Jeffrey Yasskin CXXScopeSpec *SS = 0); 14904c97d762d8c5a84f6554e5bfb31d28c90df64158Chris Lattner void ParseClassSpecifier(tok::TokenKind TagTokKind, SourceLocation TagLoc, 14911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DeclSpec &DS, 14924d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo(), 1493d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl AccessSpecifier AS = AS_none, 1494d9bafa76f8d6eb9e4f4974ed322217f8df6bb82eSebastian Redl bool SuppressDeclarations = false); 14954cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void ParseCXXMemberSpecification(SourceLocation StartLoc, unsigned TagType, 1496d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *TagDecl); 149737b372b76a3fafe77186d7e6079e5642e2017478Douglas Gregor void ParseCXXClassMemberDeclaration(AccessSpecifier AS, 1498c9068d7dd94d439cec66c421115d15303e481025John McCall const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo(), 1499c9068d7dd94d439cec66c421115d15303e481025John McCall ParsingDeclRAIIObject *DiagsFromTParams = 0); 1500d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void ParseConstructorInitializer(Decl *ConstructorDecl); 1501d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall MemInitResult ParseMemInitializer(Decl *ConstructorDecl); 1502d33133cdc1af466f9c276249b2621be03867888bEli Friedman void HandleMemberFunctionDefaultArgs(Declarator& DeclaratorInfo, 1503d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ThisDecl); 1504e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor 1505e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor //===--------------------------------------------------------------------===// 1506e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor // C++ 10: Derived classes [class.derived] 1507d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall void ParseBaseClause(Decl *ClassDecl); 1508d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall BaseResult ParseBaseSpecifier(Decl *ClassDecl); 15091b7f89846f10681ce3cbe89ef5d60691d55bd918Douglas Gregor AccessSpecifier getAccessSpecifierIfPresent() const; 15101cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 15113f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool ParseUnqualifiedIdTemplateId(CXXScopeSpec &SS, 15123f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor IdentifierInfo *Name, 15133f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor SourceLocation NameLoc, 15143f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool EnteringContext, 1515b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1516d4dca08d6b7ed2e3e3718caa6fd735960b135e9aDouglas Gregor UnqualifiedId &Id, 15170278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor bool AssumeTemplateId, 15180278e123b4606ea15dbfa717e9c5a76a5ef2bc7dDouglas Gregor SourceLocation TemplateKWLoc); 1519ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor bool ParseUnqualifiedIdOperator(CXXScopeSpec &SS, bool EnteringContext, 1520b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 1521ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId &Result); 15223f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor bool ParseUnqualifiedId(CXXScopeSpec &SS, bool EnteringContext, 152302a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor bool AllowDestructorName, 152402a24ee67c0a91bdb0db8a651d5748595652e670Douglas Gregor bool AllowConstructorName, 1525b3d8748e797c6c2f1dc01186c8eeb3b1b5fe970cJohn McCall ParsedType ObjectType, 15263f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor UnqualifiedId &Result); 15273f9a0566e6793151b99a65ab936220971cf96c1bDouglas Gregor 15281cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor //===--------------------------------------------------------------------===// 1529adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor // C++ 14: Templates [temp] 1530c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor 1531adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor // C++ 14.1: Template Parameters [temp.param] 1532d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseDeclarationStartingWithTemplate(unsigned Context, 15334d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor SourceLocation &DeclEnd, 15344d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor AccessSpecifier AS = AS_none); 1535d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseTemplateDeclarationOrSpecialization(unsigned Context, 153697144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation &DeclEnd, 15374d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor AccessSpecifier AS); 1538d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseSingleDeclarationAfterTemplate( 15391426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor unsigned Context, 15404d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor const ParsedTemplateInfo &TemplateInfo, 1541c9068d7dd94d439cec66c421115d15303e481025John McCall ParsingDeclRAIIObject &DiagsFromParams, 15421426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor SourceLocation &DeclEnd, 15431426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor AccessSpecifier AS=AS_none); 15441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool ParseTemplateParameters(unsigned Depth, 15451f58816e6589ef15d1509c6c99bb8fabf2a4cda9John McCall llvm::SmallVectorImpl<Decl*> &TemplateParams, 15461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation &LAngleLoc, 1547c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor SourceLocation &RAngleLoc); 1548c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor bool ParseTemplateParameterList(unsigned Depth, 15491f58816e6589ef15d1509c6c99bb8fabf2a4cda9John McCall llvm::SmallVectorImpl<Decl*> &TemplateParams); 155098440b4ac17dc5f85ea3db683c1c1785449c17e1Douglas Gregor bool isStartOfTemplateTypeParameter(); 1551d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseTemplateParameter(unsigned Depth, unsigned Position); 1552d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseTypeParameter(unsigned Depth, unsigned Position); 1553d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseTemplateTemplateParameter(unsigned Depth, unsigned Position); 1554d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseNonTypeTemplateParameter(unsigned Depth, unsigned Position); 1555d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor // C++ 14.3: Template arguments [temp.arg] 1556314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor typedef llvm::SmallVector<ParsedTemplateArgument, 16> TemplateArgList; 1557cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor 15587532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool ParseTemplateIdAfterTemplateName(TemplateTy Template, 15591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation TemplateNameLoc, 1560cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor const CXXScopeSpec *SS, 1561cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor bool ConsumeLastToken, 1562cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor SourceLocation &LAngleLoc, 1563cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor TemplateArgList &TemplateArgs, 1564cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor SourceLocation &RAngleLoc); 1565cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor 1566c8e27cc402043ec86c1698c09e4ee9e415b16207Chris Lattner bool AnnotateTemplateIdToken(TemplateTy Template, TemplateNameKind TNK, 156739a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor const CXXScopeSpec *SS, 1568ca1bdd7c269a2390d43c040a60511edd017ee130Douglas Gregor UnqualifiedId &TemplateName, 156939a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation TemplateKWLoc = SourceLocation(), 157039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool AllowTypeAnnotation = true); 157131a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor void AnnotateTemplateIdTokenAsType(const CXXScopeSpec *SS = 0); 1572d5ab9b0a0ae24f7d0f49f6f10fd1b247e64b3306Douglas Gregor bool IsTemplateArgumentList(unsigned Skip = 0); 1573314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor bool ParseTemplateArgumentList(TemplateArgList &TemplateArgs); 1574788cd06cf8e868a67158aafec5de3a1f408d14f3Douglas Gregor ParsedTemplateArgument ParseTemplateTemplateArgument(); 1575314b97f8c564b465af605efaee23f91ec18a982bDouglas Gregor ParsedTemplateArgument ParseTemplateArgument(); 1576d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall Decl *ParseExplicitInstantiation(SourceLocation ExternLoc, 1577d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall SourceLocation TemplateLoc, 1578d226f65006733ed7f709c3174f22ce33391cb58fJohn McCall SourceLocation &DeclEnd); 157964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 158064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl //===--------------------------------------------------------------------===// 158164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // GNU G++: Type Traits [Type-Traits.html in the GCC manual] 158260d7b3a319d84d688752be3870615ac0f111fb16John McCall ExprResult ParseUnaryTypeTrait(); 1583f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor 1584f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor //===--------------------------------------------------------------------===// 1585f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor // Preprocessor code-completion pass-through 1586f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor virtual void CodeCompleteDirective(bool InConditional); 1587f44e854ed1e3aa86d2ed6d615ccd109d50ddcff9Douglas Gregor virtual void CodeCompleteInConditionalExclusion(); 15881fbb447e9d43c2c676e94081fbfee7eb6cbe933bDouglas Gregor virtual void CodeCompleteMacroName(bool IsDefinition); 1589f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor virtual void CodeCompletePreprocessorExpression(); 1590f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor virtual void CodeCompleteMacroArgument(IdentifierInfo *Macro, 1591f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor MacroInfo *MacroInfo, 1592f29c5233085a5af795c3c01b94d319e5b3235d56Douglas Gregor unsigned ArgumentIndex); 159355817afdf9d453a443262a733f6caf6692dca118Douglas Gregor virtual void CodeCompleteNaturalLanguage(); 15945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 15975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 1599