Parser.h revision a99fad8ff134273fe85f2970c7d89133d1218900
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 175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Lex/Preprocessor.h" 1806c0fecd197fef21e265a41bca8dc5022de1f864Douglas Gregor#include "clang/Parse/AccessSpecifier.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Action.h" 20eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis#include "clang/Parse/DeclSpec.h" 214726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek#include "llvm/ADT/OwningPtr.h" 224cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis#include <stack> 231100258c19dd8967ba078c0bc81fc06cea9d033fChris Lattner#include <list> 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 26fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar class AttributeList; 27fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar class PragmaHandler; 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Scope; 293cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner class DiagnosticBuilder; 300102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner class Parser; 314726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek class PragmaUnusedHandler; 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 330102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// PrettyStackTraceParserEntry - If a crash happens while the parser is active, 340102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// an entry is printed for it. 350102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattnerclass PrettyStackTraceParserEntry : public llvm::PrettyStackTraceEntry { 360102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Parser &P; 370102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattnerpublic: 380102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner PrettyStackTraceParserEntry(const Parser &p) : P(p) {} 390102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner virtual void print(llvm::raw_ostream &OS) const; 400102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner}; 410102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 420102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Parser - This implements a parser for the C family of languages. After 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parsing units of the grammar, productions are invoked to handle whatever has 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// been read. 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Parser { 484726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek friend class PragmaUnusedHandler; 490102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner PrettyStackTraceParserEntry CrashInfo; 500102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Preprocessor &PP; 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5397d0205d16fef2a783e785459b5f30f6a9dfbcb9Eric Christopher /// Tok - The current token we are peeking ahead. All parsing methods assume 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// that this is valid. 55d217773f106856a11879ec79dc468efefaf2ee75Chris Lattner Token Tok; 565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 574b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // PrevTokLocation - The location of the token we previously 584b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // consumed. This token is used for diagnostics where we expected to 594b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // see a token following another token (e.g., the ';' at the end of 604b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // a statement). 614b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceLocation PrevTokLocation; 624b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned short ParenCount, BracketCount, BraceCount; 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Actions - These are the callbacks we invoke as we parse various constructs 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// in the file. This refers to the common base class between MinimalActions 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and SemaActions for those uses that don't matter. 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Action &Actions; 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Scope *CurScope; 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diagnostic &Diags; 729e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner 739e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner /// ScopeCache - Cache scopes to reduce malloc traffic. 749e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner enum { ScopeCacheSize = 16 }; 759e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner unsigned NumCachedScopes; 769e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *ScopeCache[ScopeCacheSize]; 77662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 78662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar /// Ident_super - IdentifierInfo for "super", to support fast 79662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar /// comparison. 80662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar IdentifierInfo *Ident_super; 81662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 824726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek llvm::OwningPtr<PragmaHandler> PackHandler; 834726d03ab3abce41911c31d1354a18f1258cae4dTed Kremenek llvm::OwningPtr<PragmaHandler> UnusedHandler; 84fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 8555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// Whether the '>' token acts as an operator or not. This will be 8655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// true except when we are parsing an expression within a C++ 8755f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// template argument list, where the '>' closes the template 8855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// argument list. 8955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor bool GreaterThanIsOperator; 9055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 91f02da89d7bddc319be52605d36442518647116b4Douglas Gregor /// \brief RAII object that makes '>' behave either as an operator 92f02da89d7bddc319be52605d36442518647116b4Douglas Gregor /// or as the closing angle bracket for a template argument list. 93f02da89d7bddc319be52605d36442518647116b4Douglas Gregor struct GreaterThanIsOperatorScope { 9455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor bool &GreaterThanIsOperator; 9555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor bool OldGreaterThanIsOperator; 9655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 97f02da89d7bddc319be52605d36442518647116b4Douglas Gregor GreaterThanIsOperatorScope(bool >IO, bool Val) 9855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor : GreaterThanIsOperator(GTIO), OldGreaterThanIsOperator(GTIO) { 99f02da89d7bddc319be52605d36442518647116b4Douglas Gregor GreaterThanIsOperator = Val; 10055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 10155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 102f02da89d7bddc319be52605d36442518647116b4Douglas Gregor ~GreaterThanIsOperatorScope() { 10355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor GreaterThanIsOperator = OldGreaterThanIsOperator; 10455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 10555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor }; 10655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Parser(Preprocessor &PP, Action &Actions); 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ~Parser(); 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const LangOptions &getLang() const { return PP.getLangOptions(); } 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TargetInfo &getTargetInfo() const { return PP.getTargetInfo(); } 1130102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Preprocessor &getPreprocessor() const { return PP; } 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Action &getActions() const { return Actions; } 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1160102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &getCurToken() const { return Tok; } 1170102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Type forwarding. All of these are statically 'void*', but they may all be 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // different actual classes based on the actions in place. 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::ExprTy ExprTy; 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::StmtTy StmtTy; 122b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner typedef Action::DeclPtrTy DeclPtrTy; 123682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner typedef Action::DeclGroupPtrTy DeclGroupPtrTy; 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::TypeTy TypeTy; 125f8268ae3196002bbab6adb830302e79b0f368f13Douglas Gregor typedef Action::BaseTy BaseTy; 1267ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor typedef Action::MemInitTy MemInitTy; 127eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis typedef Action::CXXScopeTy CXXScopeTy; 128c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor typedef Action::TemplateParamsTy TemplateParamsTy; 1297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor typedef Action::TemplateTy TemplateTy; 1307ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 131c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor typedef llvm::SmallVector<TemplateParamsTy *, 4> TemplateParameterLists; 132c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor 133d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor typedef Action::ExprResult ExprResult; 134d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor typedef Action::StmtResult StmtResult; 135d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor typedef Action::BaseResult BaseResult; 136d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor typedef Action::MemInitResult MemInitResult; 137809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor typedef Action::TypeResult TypeResult; 13815faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 13915faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::OwningExprResult OwningExprResult; 14015faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::OwningStmtResult OwningStmtResult; 14115faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 1421d922960e083906a586609ac6978678147250177Sebastian Redl typedef Action::ExprArg ExprArg; 143a60528cdac7deee3991c2b48af4df4f315e49e9dSebastian Redl typedef Action::MultiStmtArg MultiStmtArg; 144a99fad8ff134273fe85f2970c7d89133d1218900Anders Carlsson typedef Action::FullExprArg FullExprArg; 1451d922960e083906a586609ac6978678147250177Sebastian Redl 14661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl /// Adorns a ExprResult with Actions to make it an OwningExprResult 14761364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningExprResult Owned(ExprResult res) { 14861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return OwningExprResult(Actions, res); 14961364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 15061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl /// Adorns a StmtResult with Actions to make it an OwningStmtResult 15161364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult Owned(StmtResult res) { 15261364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return OwningStmtResult(Actions, res); 15361364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 15461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 15561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningExprResult ExprError() { return OwningExprResult(Actions, true); } 15661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult StmtError() { return OwningStmtResult(Actions, true); } 157d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 1582f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ExprError(const DiagnosticBuilder &) { return ExprError(); } 1592f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningStmtResult StmtError(const DiagnosticBuilder &) { return StmtError(); } 16061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parsing methods. 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParseTranslationUnit - All in one method that initializes parses, and 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// shuts down the parser. 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseTranslationUnit(); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Initialize - Warm up the parser. 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Initialize(); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1711f6443255894429fba384de0d5b6389ef578a5e9Steve Naroff /// ParseTopLevelDecl - Parse one top-level declaration. Returns true if 1721f6443255894429fba384de0d5b6389ef578a5e9Steve Naroff /// the EOF was encountered. 173682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner bool ParseTopLevelDecl(DeclGroupPtrTy &Result); 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Low-Level token peeking and consumption methods. 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenParen - Return true if the cur token is '(' or ')'. 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenParen() const { 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_paren || Tok.getKind() == tok::r_paren; 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenBracket - Return true if the cur token is '[' or ']'. 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenBracket() const { 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_square || Tok.getKind() == tok::r_square; 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenBrace - Return true if the cur token is '{' or '}'. 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenBrace() const { 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_brace || Tok.getKind() == tok::r_brace; 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenStringLiteral - True if this token is a string-literal. 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenStringLiteral() const { 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::string_literal || 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.getKind() == tok::wide_string_literal; 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 199eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeToken - Consume the current 'peek token' and lex the next one. 201d6ecc5cf945ccdf2b931137e364a69cde59ab18bZhongxing Xu /// This does not work with all kinds of tokens: strings and specific other 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// tokens must be consumed with custom methods below. This returns the 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// location of the consumed token. 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeToken() { 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isTokenStringLiteral() && !isTokenParen() && !isTokenBracket() && 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer !isTokenBrace() && 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Should consume special tokens with Consume*Token"); 2084b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2104b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeAnyToken - Dispatch to the right Consume* method based on the 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// current token type. This should only be used in cases where the type of 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the token really isn't known, e.g. in error recovery. 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeAnyToken() { 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isTokenParen()) 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeParen(); 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isTokenBracket()) 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeBracket(); 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isTokenBrace()) 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeBrace(); 223d62701bc5321049353017e9abf1963edd57646aaSteve Naroff else if (isTokenStringLiteral()) 224d62701bc5321049353017e9abf1963edd57646aaSteve Naroff return ConsumeStringToken(); 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeToken(); 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeParen - This consume method keeps the paren count up-to-date. 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeParen() { 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenParen() && "wrong consume method"); 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_paren) 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++ParenCount; 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ParenCount) 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --ParenCount; // Don't let unbalanced )'s drive the count negative. 2374b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2394b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeBracket - This consume method keeps the bracket count up-to-date. 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeBracket() { 2455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenBracket() && "wrong consume method"); 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_square) 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++BracketCount; 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (BracketCount) 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --BracketCount; // Don't let unbalanced ]'s drive the count negative. 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2514b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2534b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeBrace - This consume method keeps the brace count up-to-date. 2575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeBrace() { 2595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenBrace() && "wrong consume method"); 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_brace) 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++BraceCount; 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (BraceCount) 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --BraceCount; // Don't let unbalanced }'s drive the count negative. 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2654b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2674b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeStringToken - Consume the current 'peek token', lexing a new one 2715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and returning the token kind. This method is specific to strings, as it 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// handles string literal concatenation, as per C99 5.1.1.2, translation 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// phase #6. 2745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeStringToken() { 2755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenStringLiteral() && 2765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Should only consume string literals with this method"); 2774b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2794b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2826b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// GetLookAheadToken - This peeks ahead N tokens and returns that token 2836b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// without consuming any tokens. LookAhead(0) returns 'Tok', LookAhead(1) 2846b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// returns the token after Tok, etc. 2856b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// 2866b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// Note that this differs from the Preprocessor's LookAhead method, because 2876b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// the Parser always has one token lexed that the preprocessor doesn't. 2886b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// 28903db1b31dd926409b7defc1c90b66549464652c0Argyrios Kyrtzidis const Token &GetLookAheadToken(unsigned N) { 2906b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner if (N == 0 || Tok.is(tok::eof)) return Tok; 2916b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner return PP.LookAhead(N-1); 2926b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner } 293f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis 294f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis /// NextToken - This peeks ahead one token and returns it without 295f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis /// consuming it. 296f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis const Token &NextToken() { 29703db1b31dd926409b7defc1c90b66549464652c0Argyrios Kyrtzidis return PP.LookAhead(0); 298f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis } 2995404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 300eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// TryAnnotateTypeOrScopeToken - If the current token position is on a 301eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// typename (possibly qualified in C++) or a C++ scope specifier not followed 302eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 303eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// with a single annotation token representing the typename or C++ scope 304eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// respectively. 305eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// This simplifies handling of C++ scope specifiers and allows efficient 306eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// backtracking without the need to re-parse and resolve nested-names and 307eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// typenames. 30844802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// It will mainly be called when we expect to treat identifiers as typenames 30944802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// (if they are typenames). For example, in C we do not expect identifiers 31044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// inside expressions to be treated as typenames so it will not be called 31144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// for expressions in C. 312a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner /// 313a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner /// This returns true if the token was annotated. 3145b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner bool TryAnnotateTypeOrScopeToken(); 315eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 3164bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis /// TryAnnotateCXXScopeToken - Like TryAnnotateTypeOrScopeToken but only 3175e02c47a7085831586344a9728763cb50540c7f7Chris Lattner /// annotates C++ scope specifiers. This returns true if the token was 3185e02c47a7085831586344a9728763cb50540c7f7Chris Lattner /// annotated. 3195e02c47a7085831586344a9728763cb50540c7f7Chris Lattner bool TryAnnotateCXXScopeToken(); 320eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 3215404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TentativeParsingAction - An object that is used as a kind of "tentative 3225404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// parsing transaction". It gets instantiated to mark the token position and 3235404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// after the token consumption is done, Commit() or Revert() is called to 3245404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// either "commit the consumed tokens" or revert to the previously marked 3255404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// token position. Example: 3265404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// 3275404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TentativeParsingAction TPA; 3285404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// ConsumeToken(); 3295404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// .... 3305404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TPA.Revert(); 3315404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// 3325404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis class TentativeParsingAction { 3335404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis Parser &P; 3345404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis Token PrevTok; 3355404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isActive; 3365404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 3375404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis public: 3385404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis explicit TentativeParsingAction(Parser& p) : P(p) { 3395404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis PrevTok = P.Tok; 3405404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.EnableBacktrackAtThisPos(); 3415404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = true; 3425404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 3435404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis void Commit() { 3445404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(isActive && "Parsing action was finished!"); 3455404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.CommitBacktrackedTokens(); 3465404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = false; 3475404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 3485404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis void Revert() { 3495404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(isActive && "Parsing action was finished!"); 3505404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.Backtrack(); 3515404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.Tok = PrevTok; 3525404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = false; 3535404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 3545404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis ~TentativeParsingAction() { 3555404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(!isActive && "Forgot to call Commit or Revert!"); 3565404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 3575404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis }; 3586b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner 3596b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// MatchRHSPunctuation - For punctuation with a LHS and RHS (e.g. '['/']'), 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this helper function matches and consumes the specified RHS token if 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// present. If not present, it emits the specified diagnostic indicating 3635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// that the parser failed to match the RHS of the token at LHSLoc. LHSName 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// should be the name of the unmatched LHS token. This returns the location 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the consumed token. 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MatchRHSPunctuation(tok::TokenKind RHSTok, 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LHSLoc); 3685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// input. If so, it is consumed and false is returned. 3715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 3725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If the input is malformed, this emits the specified diagnostic. Next, if 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 3745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// returned. 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned Diag, 3765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *DiagMsg = "", 3775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind SkipToTok = tok::unknown); 3785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scope manipulation 3815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3828935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// ParseScope - Introduces a new scope for parsing. The kind of 3838935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// scope is determined by ScopeFlags. Objects of this type should 3848935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// be created on the stack to coincide with the position where the 3858935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// parser enters the new scope, and this object's constructor will 3868935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// create that new scope. Similarly, once the object is destroyed 3878935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// the parser will exit the scope. 3888935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor class ParseScope { 3898935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Parser *Self; 3908935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope(const ParseScope&); // do not implement 3918935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope& operator=(const ParseScope&); // do not implement 3928935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 3938935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor public: 3948935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ParseScope - Construct a new object to manage a scope in the 3958935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // parser Self where the new Scope is created with the flags 3968935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ScopeFlags, but only when ManageScope is true (the default). If 3978935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ManageScope is false, this object does nothing. 3988935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope(Parser *Self, unsigned ScopeFlags, bool ManageScope = true) 3998935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor : Self(Self) { 4008935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor if (ManageScope) 4018935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self->EnterScope(ScopeFlags); 4028935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor else 4038935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor this->Self = 0; 4048935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 4058935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 4068935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // Exit - Exit the scope associated with this object now, rather 4078935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // than waiting until the object is destroyed. 4088935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor void Exit() { 4098935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor if (Self) { 4108935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self->ExitScope(); 4118935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self = 0; 4128935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 4138935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 4148935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 4158935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ~ParseScope() { 4168935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Exit(); 4178935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 4188935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor }; 4198935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EnterScope - Start a new scope. 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EnterScope(unsigned ScopeFlags); 4225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ExitScope - Pop a scope off the scope stack. 4245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ExitScope(); 4255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Diagnostic Emission and Error recovery. 42815faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 4293cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID); 4303cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner DiagnosticBuilder Diag(const Token &Tok, unsigned DiagID); 43115faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 4324b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor void SuggestParentheses(SourceLocation Loc, unsigned DK, 4334b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange); 4344b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 4355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SkipUntil - Read tokens until we get to the specified token, then consume 43682c7e6d8215567935d3d52741ccca9876a8ea461Steve Naroff /// it (unless DontConsume is true). Because we cannot guarantee that the 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// token will ever occur, this skips to the next token, or to some likely 4385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 4395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// character. 4405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If SkipUntil finds the specified token, it returns true, otherwise it 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// returns false. 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(tok::TokenKind T, bool StopAtSemi = true, 4445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool DontConsume = false) { 4455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SkipUntil(&T, 1, StopAtSemi, DontConsume); 4465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(tok::TokenKind T1, tok::TokenKind T2, bool StopAtSemi = true, 4485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool DontConsume = false) { 4495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind TokArray[] = {T1, T2}; 4505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SkipUntil(TokArray, 2, StopAtSemi, DontConsume); 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(const tok::TokenKind *Toks, unsigned NumToks, 4535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool StopAtSemi = true, bool DontConsume = false); 4547ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 4555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4564cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Lexing and parsing of C++ inline methods. 4574cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4584cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis struct LexedMethod { 459b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner Action::DeclPtrTy D; 46072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens Toks; 461b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner explicit LexedMethod(Action::DeclPtrTy MD) : D(MD) {} 4624cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis }; 4634cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 46472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// LateParsedDefaultArgument - Keeps track of a parameter that may 46572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// have a default argument that cannot be parsed yet because it 46672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// occurs within a member function declaration inside the class 46772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// (C++ [class.mem]p2). 46872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor struct LateParsedDefaultArgument { 469b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner explicit LateParsedDefaultArgument(Action::DeclPtrTy P, 47072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens *Toks = 0) 47172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor : Param(P), Toks(Toks) { } 47272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 47372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// Param - The parameter declaration for this parameter. 474b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner Action::DeclPtrTy Param; 47572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 47672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// Toks - The sequence of tokens that comprises the default 47772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// argument expression, not including the '=' or the terminating 47872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// ')' or ','. This will be NULL for parameters that have no 47972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// default argument. 48072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens *Toks; 48172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor }; 48272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 48372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// LateParsedMethodDeclaration - A method declaration inside a class that 48472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// contains at least one entity whose parsing needs to be delayed 48572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// until the class itself is completely-defined, such as a default 48672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// argument (C++ [class.mem]p2). 48772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor struct LateParsedMethodDeclaration { 488b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner explicit LateParsedMethodDeclaration(Action::DeclPtrTy M) : Method(M) { } 48972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 49072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// Method - The method declaration. 491b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner Action::DeclPtrTy Method; 49272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 49372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// DefaultArgs - Contains the parameters of the function and 49472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// their default arguments. At least one of the parameters will 49572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// have a default argument, but all of the parameters of the 49672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// method will be stored so that they can be reintroduced into 49772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// scope at the appropriate times. 49872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor llvm::SmallVector<LateParsedDefaultArgument, 8> DefaultArgs; 49972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor }; 50072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 50172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// LateParsedMethodDecls - During parsing of a top (non-nested) C++ 50272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// class, its method declarations that contain parts that won't be 50372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// parsed until after the definiton is completed (C++ [class.mem]p2), 50472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// the method declarations will be stored here with the tokens that 50572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// will be parsed to create those entities. 50672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor typedef std::list<LateParsedMethodDeclaration> LateParsedMethodDecls; 50772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 5084cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// LexedMethodsForTopClass - During parsing of a top (non-nested) C++ class, 5094cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// its inline method definitions and the inline method definitions of its 5104cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// nested classes are lexed and stored here. 51172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor typedef std::list<LexedMethod> LexedMethodsForTopClass; 51272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 51372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 51472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// TopClass - Contains information about parts of the top 51572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// (non-nested) C++ class that will need to be parsed after the 51672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// class is fully defined. 51772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor struct TopClass { 51872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// MethodDecls - Method declarations that contain pieces whose 51972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// parsing will be delayed until the class is fully defined. 52072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor LateParsedMethodDecls MethodDecls; 52172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 52272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// MethodDefs - Methods whose definitions will be parsed once the 52372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// class has been fully defined. 52472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor LexedMethodsForTopClass MethodDefs; 52572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor }; 5264cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 52772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// TopClassStacks - This is initialized with one TopClass used 5284cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// for lexing all top classes, until a local class in an inline method is 52972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// encountered, at which point a new TopClass is pushed here 5304cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// and used until the parsing of that local class is finished. 53172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor std::stack<TopClass> TopClassStacks; 5324cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 53372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor TopClass &getCurTopClassStack() { 5344cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(!TopClassStacks.empty() && "No lexed method stacks!"); 5354cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return TopClassStacks.top(); 5364cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 5374cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5384cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void PushTopClassStack() { 53972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor TopClassStacks.push(TopClass()); 5404cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 5414cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void PopTopClassStack() { TopClassStacks.pop(); } 5424cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 543b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseCXXInlineMethodDef(AccessSpecifier AS, Declarator &D); 54472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor void ParseLexedMethodDeclarations(); 5454cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void ParseLexedMethodDefs(); 54672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor bool ConsumeAndStoreUntil(tok::TokenKind T1, tok::TokenKind T2, 54772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens &Toks, 54872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor tok::TokenKind EarlyAbortIf = tok::unknown, 54972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor bool ConsumeFinalToken = true); 5504cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5514d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief Contains information about any template-specific 5524d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// information that has been parsed prior to parsing declaration 5534d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// specifiers. 5544d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor struct ParsedTemplateInfo { 5554d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor ParsedTemplateInfo() 5564d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor : Kind(NonTemplate), TemplateParams(0), TemplateLoc() { } 5574d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 5584d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor ParsedTemplateInfo(TemplateParameterLists *TemplateParams, 5594d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor bool isSpecialization) 5604d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor : Kind(isSpecialization? ExplicitSpecialization : Template), 5614d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor TemplateParams(TemplateParams) { } 5624d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 5634d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor explicit ParsedTemplateInfo(SourceLocation TemplateLoc) 5643f5b61c394f4f205bcb4d316eb2a7a0a68b8af86Douglas Gregor : Kind(ExplicitInstantiation), TemplateParams(0), 5654d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor TemplateLoc(TemplateLoc) { } 5664d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 5674d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief The kind of template we are parsing. 5684d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor enum { 5694d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief We are not parsing a template at all. 5704d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor NonTemplate = 0, 5714d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief We are parsing a template declaration. 5724d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor Template, 5734d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief We are parsing an explicit specialization. 5744d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor ExplicitSpecialization, 5754d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief We are parsing an explicit instantiation. 5764d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor ExplicitInstantiation 5774d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor } Kind; 5784d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 5794d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief The template parameter lists, for template declarations 5804d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// and explicit specializations. 5814d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor TemplateParameterLists *TemplateParams; 5824d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 5834d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// \brief The location of the 'template' keyword, for an explicit 5844d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor /// instantiation. 5854d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor SourceLocation TemplateLoc; 5864d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor }; 5874d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 5884cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9: External Definitions. 590682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy ParseExternalDeclaration(); 5911426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor bool isDeclarationAfterDeclarator(); 5921426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor bool isStartOfFunctionDefinition(); 593682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy ParseDeclarationOrFunctionDefinition( 5945aeccdbb4bdc94e48c04cacc59fa812af32109b2Anders Carlsson AccessSpecifier AS = AS_none); 5955aeccdbb4bdc94e48c04cacc59fa812af32109b2Anders Carlsson 596b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseFunctionDefinition(Declarator &D); 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseKNRParamDeclarations(Declarator &D); 598ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc, if non-NULL, is filled with the location of the last token of 599ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // the simple-asm. 600ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl OwningExprResult ParseSimpleAsm(SourceLocation *EndLoc = 0); 601effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl OwningExprResult ParseAsmStringLiteral(); 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6033536b443bc50d58a79f14fca9b6842541a434854Steve Naroff // Objective-C External Declarations 604b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCAtDirectives(); 605b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCAtClassDeclaration(SourceLocation atLoc); 606b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCAtInterfaceDeclaration(SourceLocation atLoc, 607dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff AttributeList *prefixAttrs = 0); 608b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner void ParseObjCClassInstanceVariables(DeclPtrTy interfaceDecl, 60960fcceeedbfc8b4a99cb942e2bc5aeb9e2f92a1fSteve Naroff SourceLocation atLoc); 610b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner bool ParseObjCProtocolReferences(llvm::SmallVectorImpl<Action::DeclPtrTy> &P, 611e13b9595dc1e2f4288bec34f3412359f648e84a5Chris Lattner bool WarnOnDeclarations, 612e13b9595dc1e2f4288bec34f3412359f648e84a5Chris Lattner SourceLocation &EndProtoLoc); 613b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner void ParseObjCInterfaceDeclList(DeclPtrTy interfaceDecl, 614c81c8144a661a49d7b9dae8d2080dee2e43186ecChris Lattner tok::ObjCKeywordKind contextKey); 615b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCAtProtocolDeclaration(SourceLocation atLoc, 616b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner AttributeList *prefixAttrs = 0); 6173536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 618b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ObjCImpDecl; 6190416fb9f379b49abb3eb0c1cb2ca75107e5a71d1Steve Naroff 620b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCAtImplementationDeclaration(SourceLocation atLoc); 621b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCAtEndDeclaration(SourceLocation atLoc); 622b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCAtAliasDeclaration(SourceLocation atLoc); 623b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCPropertySynthesize(SourceLocation atLoc); 624b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCPropertyDynamic(SourceLocation atLoc); 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6262fc5c2428ecb450a3256c8316b93b8655cb76a0fChris Lattner IdentifierInfo *ParseObjCSelectorPiece(SourceLocation &MethodLocation); 62734870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Definitions for Objective-c context sensitive keywords recognition. 62834870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner enum ObjCTypeQual { 62934870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner objc_in=0, objc_out, objc_inout, objc_oneway, objc_bycopy, objc_byref, 63034870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner objc_NumQuals 63134870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner }; 632a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek IdentifierInfo *ObjCTypeQuals[objc_NumQuals]; 6330196cab54007ff072ec2642da8911c6b7e8d3fb5Fariborz Jahanian 634335a2d4122e41343fe11a775889b8bec5b14be60Fariborz Jahanian bool isTokIdentifier_in() const; 635d0f97d1716a138a8d9e0df8e5af77334663723d8Fariborz Jahanian 636a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek TypeTy *ParseObjCTypeName(ObjCDeclSpec &DS); 637294494e1cce92043562b4680c613df7fd028c02eSteve Naroff void ParseObjCMethodRequirement(); 638b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCMethodPrototype(DeclPtrTy classOrCat, 639c81c8144a661a49d7b9dae8d2080dee2e43186ecChris Lattner tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword); 640b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCMethodDecl(SourceLocation mLoc, tok::TokenKind mType, 641b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy classDecl, 64200933591a2795d09dd1acff12a2d21bce7cb12c5Fariborz Jahanian tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword); 643a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void ParseObjCPropertyAttribute(ObjCDeclSpec &DS); 644294494e1cce92043562b4680c613df7fd028c02eSteve Naroff 645b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseObjCMethodDefinition(); 646bcfb06ac6da1aa3c74ac1ef7a49c2807522366e7Steve Naroff 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.5: Expressions. 6495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6502f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseExpression(); 6512f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseConstantExpression(); 6522f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl // Expr that doesn't include commas. 6532f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseAssignmentExpression(); 6542f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl 655d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseExpressionWithLeadingAt(SourceLocation AtLoc); 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 657adf077f46ba5cddcd801a647a5e9a3eb97060df4Eli Friedman OwningExprResult ParseExpressionWithLeadingExtension(SourceLocation ExtLoc); 658adf077f46ba5cddcd801a647a5e9a3eb97060df4Eli Friedman 659d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseRHSOfBinaryExpression(OwningExprResult LHS, 660d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl unsigned MinPrec); 661ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl OwningExprResult ParseCastExpression(bool isUnaryExpression, 662ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl bool isAddressOfOperand = false); 6632f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParsePostfixExpressionSuffix(OwningExprResult LHS); 664d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseSizeofAlignofExpression(); 665d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseBuiltinPrimaryExpression(); 6660cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis 667a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl static const unsigned ExprListSize = 12; 668a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl typedef llvm::SmallVector<ExprTy*, ExprListSize> ExprListTy; 669a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl typedef llvm::SmallVector<SourceLocation, ExprListSize> CommaLocsTy; 6700cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis 6710cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis /// ParseExpressionList - Used for C/C++ (argument-)expression-list. 6720cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis bool ParseExpressionList(ExprListTy &Exprs, CommaLocsTy &CommaLocs); 673d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParenParseOption - Control what ParseParenExpression will parse. 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum ParenParseOption { 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SimpleExpr, // Only parse '(' expression ')' 6775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundStmt, // Also allow '(' compound-statement ')' 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundLiteral, // Also allow '(' type-name ')' '{' ... '}' 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CastExpr // Also allow '(' type-name ')' <anything> 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 681d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseParenExpression(ParenParseOption &ExprType, 682d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl TypeTy *&CastTy, 683d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl SourceLocation &RParenLoc); 684d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl 685d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseSimpleParenExpression() { // Parse SimpleExpr only. 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ParseSimpleParenExpression(RParenLoc); 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 689d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseSimpleParenExpression(SourceLocation &RParenLoc) { 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenParseOption Op = SimpleExpr; 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TypeTy *CastTy; 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ParseParenExpression(Op, CastTy, RParenLoc); 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 69415ff1110c96a26c9315142d407c1f29d86a5ad1fChris Lattner 69520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseStringLiteralExpression(); 696eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 697eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis //===--------------------------------------------------------------------===// 698eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // C++ Expressions 699ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl OwningExprResult ParseCXXIdExpression(bool isAddressOfOperand = false); 7004bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 7017a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner /// ParseOptionalCXXScopeSpecifier - Parse global scope or 7027a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner /// nested-name-specifier if present. Returns true if a nested-name-specifier 7037a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner /// was parsed from the token stream. Note that this routine will not parse 7047a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner /// ::new or ::delete, it will just leave them in the token stream. 705a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner /// 7067a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner bool ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS); 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C++ 5.2p1: C++ Casts 71020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXCasts(); 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 713c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // C++ 5.2p1: C++ Type Identification 71420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXTypeid(); 715c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 716c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl //===--------------------------------------------------------------------===// 7174cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // C++ 9.3.2: C++ 'this' pointer 71820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXThis(); 7194cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 7204cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 72150dd289f45738ed22b7583d52ed2525b927042ffChris Lattner // C++ 15: C++ Throw Expression 72220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseThrowExpression(); 723ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc is filled with the location of the last token of the specification. 7247dc813462dd9fd3f6f4296f896a12de14264fef8Sebastian Redl bool ParseExceptionSpecification(SourceLocation &EndLoc, 7257dc813462dd9fd3f6f4296f896a12de14264fef8Sebastian Redl std::vector<TypeTy*> &Exceptions, 7267dc813462dd9fd3f6f4296f896a12de14264fef8Sebastian Redl bool &hasAnyExceptionSpec); 72750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 72850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner //===--------------------------------------------------------------------===// 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C++ 2.13.5: C++ Boolean Literals 73020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXBoolLiteral(); 7315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 733987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // C++ 5.2.3: Explicit type conversion (functional notation) 73420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXTypeConstructExpression(const DeclSpec &DS); 735987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 736987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 737987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// This should only be called when the current token is known to be part of 738987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// simple-type-specifier. 739987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis void ParseCXXSimpleTypeSpecifier(DeclSpec &DS); 740987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 7412f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor bool ParseCXXTypeSpecifierSeq(DeclSpec &DS); 7422f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 743987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 7444c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // C++ 5.3.4 and 5.3.5: C++ new and delete 745cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl bool ParseExpressionListOrTypeId(ExprListTy &Exprs, Declarator &D); 7464c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl void ParseDirectNewDeclarator(Declarator &D); 74759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner OwningExprResult ParseCXXNewExpression(bool UseGlobal, SourceLocation Start); 74859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner OwningExprResult ParseCXXDeleteExpression(bool UseGlobal, 74959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner SourceLocation Start); 7504c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 7514c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl //===--------------------------------------------------------------------===// 75271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // C++ if/switch/while/for condition expression. 7532f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseCXXCondition(); 75471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 75571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis //===--------------------------------------------------------------------===// 75612e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor // C++ types 75712e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor 75812e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor //===--------------------------------------------------------------------===// 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.8: Initialization. 7600eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner 7610eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// ParseInitializer 7620eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// initializer: [C99 6.7.8] 7630eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// assignment-expression 7640eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// '{' ... 76520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseInitializer() { 7660eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner if (Tok.isNot(tok::l_brace)) 76720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ParseAssignmentExpression(); 7680eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner return ParseBraceInitializer(); 7690eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner } 77020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseBraceInitializer(); 7715908a9293b88a3da57ae59b522275d05e1ab11e0Douglas Gregor OwningExprResult ParseInitializerWithPotentialDesignator(); 7721d922960e083906a586609ac6978678147250177Sebastian Redl 7735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 774296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // clang Expressions 7751d922960e083906a586609ac6978678147250177Sebastian Redl 7761d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseBlockLiteralExpression(); // ^{...} 777296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff 778296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff //===--------------------------------------------------------------------===// 7795508518a2702b00be3b15a26d772bde968972f54Anders Carlsson // Objective-C Expressions 78014dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 78114dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner bool isTokObjCMessageIdentifierReceiver() const { 78214dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner if (!Tok.is(tok::identifier)) 78314dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner return false; 78414dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 78547246be8ac5b0ddde6c402b8fc6946b6135487b5Chris Lattner IdentifierInfo *II = Tok.getIdentifierInfo(); 786b696ea3a0693798daeafd896d77f0b8f1fec3cc5Douglas Gregor if (Actions.getTypeName(*II, Tok.getLocation(), CurScope)) 78714dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner return true; 78814dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 78947246be8ac5b0ddde6c402b8fc6946b6135487b5Chris Lattner return II == Ident_super; 79014dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner } 7911d922960e083906a586609ac6978678147250177Sebastian Redl 7921d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCAtExpression(SourceLocation AtLocation); 7931d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCStringLiteral(SourceLocation AtLoc); 7941d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCEncodeExpression(SourceLocation AtLoc); 7951d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCSelectorExpression(SourceLocation AtLoc); 7961d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCProtocolExpression(SourceLocation AtLoc); 7971d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCMessageExpression(); 7981d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCMessageExpressionBody(SourceLocation LBracloc, 7991d922960e083906a586609ac6978678147250177Sebastian Redl SourceLocation NameLoc, 8001d922960e083906a586609ac6978678147250177Sebastian Redl IdentifierInfo *ReceiverName, 8011d922960e083906a586609ac6978678147250177Sebastian Redl ExprArg ReceiverExpr); 8021d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseAssignmentExprWithObjCMessageExprStart( 8031d922960e083906a586609ac6978678147250177Sebastian Redl SourceLocation LBracloc, SourceLocation NameLoc, 8041d922960e083906a586609ac6978678147250177Sebastian Redl IdentifierInfo *ReceiverName, ExprArg ReceiverExpr); 80561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 8065508518a2702b00be3b15a26d772bde968972f54Anders Carlsson //===--------------------------------------------------------------------===// 8075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.8: Statements and Blocks. 80861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 80961364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseStatement() { 81061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ParseStatementOrDeclaration(true); 81161364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 81261364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseStatementOrDeclaration(bool OnlyStatement = false); 81361364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseLabeledStatement(); 81461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseCaseStatement(); 81561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseDefaultStatement(); 81661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseCompoundStatement(bool isStmtExpr = false); 81761364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseCompoundStatementBody(bool isStmtExpr = false); 818ff871fb8f9c5906a4dee78afd81f60c3837e16cbChris Lattner bool ParseParenExprOrCondition(OwningExprResult &CondExp, 819ff871fb8f9c5906a4dee78afd81f60c3837e16cbChris Lattner bool OnlyAllowCondition = false); 82061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseIfStatement(); 8219a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseSwitchStatement(); 8229a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseWhileStatement(); 8239a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseDoStatement(); 8249a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseForStatement(); 8259a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseGotoStatement(); 8269a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseContinueStatement(); 8279a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseBreakStatement(); 8289a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseReturnStatement(); 8299a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseAsmStatement(bool &msAsm); 8309a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult FuzzyParseMicrosoftAsmStatement(); 831a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl bool ParseAsmOperandsOpt(llvm::SmallVectorImpl<std::string> &Names, 832a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl llvm::SmallVectorImpl<ExprTy*> &Constraints, 833a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl llvm::SmallVectorImpl<ExprTy*> &Exprs); 834a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 835a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl //===--------------------------------------------------------------------===// 836a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl // C++ 6: Statements and Blocks 837a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 838a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl OwningStmtResult ParseCXXTryBlock(); 839d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl OwningStmtResult ParseCXXTryBlockCommon(SourceLocation TryLoc); 840a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl OwningStmtResult ParseCXXCatchBlock(); 841a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 842a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl //===--------------------------------------------------------------------===// 843a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl // Objective-C Statements 844a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 84543bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCAtStatement(SourceLocation atLoc); 84643bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCTryStmt(SourceLocation atLoc); 84743bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCThrowStmt(SourceLocation atLoc); 84843bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCSynchronizedStmt(SourceLocation atLoc); 849b235fc2cf37621c7fc6511bb2b8788c95f9fb9fcAnders Carlsson 8505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7: Declarations. 8535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 85497144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner DeclGroupPtrTy ParseDeclaration(unsigned Context, SourceLocation &DeclEnd); 855cd1477562e7cf03279850885583d615e1f631dd4Chris Lattner DeclGroupPtrTy ParseSimpleDeclaration(unsigned Context, 85697144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation &DeclEnd, 857cd1477562e7cf03279850885583d615e1f631dd4Chris Lattner bool RequireSemi = true); 8581426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor DeclPtrTy ParseDeclarationAfterDeclarator(Declarator &D); 859682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner DeclGroupPtrTy ParseInitDeclaratorListAfterFirstDeclarator(Declarator &D); 860b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseFunctionStatementBody(DeclPtrTy Decl); 861d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl DeclPtrTy ParseFunctionTryBlock(DeclPtrTy Decl); 862d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 863f4382f50b7ab9f445c3f5b3ddaa59e6da25ea3bbChris Lattner bool ParseImplicitInt(DeclSpec &DS, CXXScopeSpec *SS, 8644d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor const ParsedTemplateInfo &TemplateInfo, 865e40c295d017a8f75a945fe9ed2aa9d8bb7a7341aChris Lattner AccessSpecifier AS); 866c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor void ParseDeclarationSpecifiers(DeclSpec &DS, 8674d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo(), 86806c0fecd197fef21e265a41bca8dc5022de1f864Douglas Gregor AccessSpecifier AS = AS_none); 8697a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner bool ParseOptionalTypeSpecifier(DeclSpec &DS, int &isInvalid, 8707a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner const char *&PrevSpec, 8714d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo()); 8724d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor 8735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseSpecifierQualifierList(DeclSpec &DS); 87419d74e1494fe399f0e2a94e9419c095f8214851bFariborz Jahanian 875a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void ParseObjCTypeQualifierList(ObjCDeclSpec &DS); 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8774c97d762d8c5a84f6554e5bfb31d28c90df64158Chris Lattner void ParseEnumSpecifier(SourceLocation TagLoc, DeclSpec &DS, 8784c97d762d8c5a84f6554e5bfb31d28c90df64158Chris Lattner AccessSpecifier AS = AS_none); 879b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner void ParseEnumBody(SourceLocation StartLoc, DeclPtrTy TagDecl); 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseStructUnionBody(SourceLocation StartLoc, unsigned TagType, 881b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy TagDecl); 882e13594279a952537ac903325efff57e3edca79d9Chris Lattner void ParseStructDeclaration(DeclSpec &DS, 883e13594279a952537ac903325efff57e3edca79d9Chris Lattner llvm::SmallVectorImpl<FieldDeclarator> &Fields); 8844e6526b2de501f2bbc261fd8017c92c75bd8d8f7Steve Naroff 885eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis bool isDeclarationSpecifier(); 886eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis bool isTypeSpecifierQualifier(); 8875f8aa696619e32bf307232841fedb704ba733b4dSteve Naroff bool isTypeQualifier() const; 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8895404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isDeclarationStatement - Disambiguates between a declaration or an 8905404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// expression statement, when parsing function bodies. 8915404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns true for declaration, false for expression. 8925404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isDeclarationStatement() { 8935404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis if (getLang().CPlusPlus) 8945404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis return isCXXDeclarationStatement(); 8955404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis return isDeclarationSpecifier(); 8965404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 8975404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 898bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// isSimpleDeclaration - Disambiguates between a declaration or an 899bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// expression, mainly used for the C 'clause-1' or the C++ 900bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis // 'for-init-statement' part of a 'for' statement. 901bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// Returns true for declaration, false for expression. 902bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis bool isSimpleDeclaration() { 903bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis if (getLang().CPlusPlus) 904bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis return isCXXSimpleDeclaration(); 905bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis return isDeclarationSpecifier(); 906bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis } 907bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis 9088b642592a35167a3780074e78674e0bece87c40cDouglas Gregor /// \brief Specifies the context in which type-id/expression 9098b642592a35167a3780074e78674e0bece87c40cDouglas Gregor /// disambiguation will occur. 9108b642592a35167a3780074e78674e0bece87c40cDouglas Gregor enum TentativeCXXTypeIdContext { 9118b642592a35167a3780074e78674e0bece87c40cDouglas Gregor TypeIdInParens, 9128b642592a35167a3780074e78674e0bece87c40cDouglas Gregor TypeIdAsTemplateArgument 9138b642592a35167a3780074e78674e0bece87c40cDouglas Gregor }; 9148b642592a35167a3780074e78674e0bece87c40cDouglas Gregor 9158b642592a35167a3780074e78674e0bece87c40cDouglas Gregor 91678c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// isTypeIdInParens - Assumes that a '(' was parsed and now we want to know 91778c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// whether the parens contain an expression or a type-id. 91878c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// Returns true for a type-id and false for an expression. 91978c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis bool isTypeIdInParens() { 92078c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis if (getLang().CPlusPlus) 9218b642592a35167a3780074e78674e0bece87c40cDouglas Gregor return isCXXTypeId(TypeIdInParens); 92278c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis return isTypeSpecifierQualifier(); 92378c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis } 92478c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis 9255404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXDeclarationStatement - C++-specialized function that disambiguates 9265404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// between a declaration or an expression statement, when parsing function 9275404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// bodies. Returns true for declaration, false for expression. 9285404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isCXXDeclarationStatement(); 9295404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 9305404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXSimpleDeclaration - C++-specialized function that disambiguates 9315404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// between a simple-declaration or an expression-statement. 9325404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 9335404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 9345404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns false if the statement is disambiguated as expression. 9355404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isCXXSimpleDeclaration(); 9365404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 9375404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXFunctionDeclarator - Disambiguates between a function declarator or 9385404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// a constructor-style initializer, when parsing declaration statements. 9395404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns true for function declarator and false for constructor-style 940e75d849d9141d8e47d05a91b7b5c04194854e47aArgyrios Kyrtzidis /// initializer. If 'warnIfAmbiguous' is true a warning will be emitted to 941259b0d91f2ff90d8daf39221fe133bf1596c5ffbArgyrios Kyrtzidis /// indicate that the parens were disambiguated as function declarator. 9425404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 9435404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 944e75d849d9141d8e47d05a91b7b5c04194854e47aArgyrios Kyrtzidis bool isCXXFunctionDeclarator(bool warnIfAmbiguous); 9455404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 946a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// isCXXConditionDeclaration - Disambiguates between a declaration or an 947a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// expression for a condition of a if/switch/while/for statement. 948a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 949a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 950a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis bool isCXXConditionDeclaration(); 951a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis 9528b642592a35167a3780074e78674e0bece87c40cDouglas Gregor bool isCXXTypeId(TentativeCXXTypeIdContext Context); 95378c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis 954b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// TPResult - Used as the result value for functions whose purpose is to 955b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// disambiguate C++ constructs by "tentatively parsing" them. 956b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// This is a class instead of a simple enum because the implicit enum-to-bool 957b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// conversions may cause subtle bugs. 958b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis class TPResult { 959b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis enum Result { 960b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_true, 961b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_false, 962b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_ambiguous, 963b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_error 964b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis }; 965b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis Result Res; 966b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult(Result result) : Res(result) {} 967b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis public: 968b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult True() { return TPR_true; } 969b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult False() { return TPR_false; } 970b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult Ambiguous() { return TPR_ambiguous; } 971b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult Error() { return TPR_error; } 972b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis 973b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis bool operator==(const TPResult &RHS) const { return Res == RHS.Res; } 974b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis bool operator!=(const TPResult &RHS) const { return Res != RHS.Res; } 975b47e38683f288cd4a73098091d629df417377a6bArgyrios Kyrtzidis }; 976b47e38683f288cd4a73098091d629df417377a6bArgyrios Kyrtzidis 977b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// isCXXDeclarationSpecifier - Returns TPResult::True() if it is a 978b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// declaration specifier, TPResult::False() if it is not, 979b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// TPResult::Ambiguous() if it could be either a decl-specifier or a 980b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// function-style cast, and TPResult::Error() if a parsing error was 981b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// encountered. 9825404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Doesn't consume tokens. 983b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult isCXXDeclarationSpecifier(); 9845404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 9855404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis // "Tentative parsing" functions, used for disambiguation. If a parsing error 986b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // is encountered they will return TPResult::Error(). 987b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // Returning TPResult::True()/False() indicates that the ambiguity was 988b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // resolved and tentative parsing may stop. TPResult::Ambiguous() indicates 989b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // that more tentative parsing is necessary for disambiguation. 9905404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis // They all consume tokens, so backtracking should be used after calling them. 9915404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 992b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseDeclarationSpecifier(); 993b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseSimpleDeclaration(); 994b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseTypeofSpecifier(); 995b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseInitDeclaratorList(); 99678c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis TPResult TryParseDeclarator(bool mayBeAbstract, bool mayHaveIdentifier=true); 997b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseParameterDeclarationClause(); 998b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseFunctionDeclarator(); 999b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseBracketDeclarator(); 10005404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 1001809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult ParseTypeName(); 100298eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump void ParseBlockId(); 1003ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc, if non-NULL, is filled with the location of the last token of 1004ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // the attribute list. 1005ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl AttributeList *ParseAttributes(SourceLocation *EndLoc = 0); 1006f59e17ecf06ac60065e2d02058bd6f21f5d216ccSteve Naroff void FuzzyParseMicrosoftDeclSpec(); 1007d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff void ParseTypeofSpecifier(DeclSpec &DS); 1008eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1009eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// DeclaratorScopeObj - RAII object used in Parser::ParseDirectDeclarator to 1010eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// enter a new C++ declarator scope and exit it when the function is 1011eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// finished. 1012eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis class DeclaratorScopeObj { 1013eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Parser &P; 1014751810234ffb45327f23c5f9fda0b944e480bd2bArgyrios Kyrtzidis CXXScopeSpec &SS; 1015eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis public: 1016eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DeclaratorScopeObj(Parser &p, CXXScopeSpec &ss) : P(p), SS(ss) {} 1017eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1018eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis void EnterDeclaratorScope() { 1019eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (SS.isSet()) 1020eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis P.Actions.ActOnCXXEnterDeclaratorScope(P.CurScope, SS); 1021eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 1022eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1023eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ~DeclaratorScopeObj() { 1024eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (SS.isSet()) 10250a59acb9ae36077ce46fb2807956c5e84f0f6837Douglas Gregor P.Actions.ActOnCXXExitDeclaratorScope(P.CurScope, SS); 1026eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 1027eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis }; 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParseDeclarator - Parse and verify a newly-initialized declarator. 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseDeclarator(Declarator &D); 10314c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl /// A function that parses a variant of direct-declarator. 10324c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl typedef void (Parser::*DirectDeclParseFunction)(Declarator&); 10334c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl void ParseDeclaratorInternal(Declarator &D, 10344c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl DirectDeclParseFunction DirectDeclParser); 103585b5a45803784a5465f69baf6f8d6e1eacaa5af5Chris Lattner void ParseTypeQualifierListOpt(DeclSpec &DS, bool AttributesAllowed = true); 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseDirectDeclarator(Declarator &D); 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseParenDeclarator(Declarator &D); 10387399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner void ParseFunctionDeclarator(SourceLocation LParenLoc, Declarator &D, 10397399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner AttributeList *AttrList = 0, 10407399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner bool RequiresArg = false); 104166d28650752eeac0b02802a1d8cea425cb6b1c0fChris Lattner void ParseFunctionDeclaratorIdentifierList(SourceLocation LParenLoc, 104266d28650752eeac0b02802a1d8cea425cb6b1c0fChris Lattner Declarator &D); 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseBracketDeclarator(Declarator &D); 10448f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner 10458f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner //===--------------------------------------------------------------------===// 10468f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner // C++ 7: Declarations [dcl.dcl] 10478f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner 104897144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner DeclPtrTy ParseNamespace(unsigned Context, SourceLocation &DeclEnd); 1049b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseLinkage(unsigned Context); 105097144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner DeclPtrTy ParseUsingDirectiveOrDeclaration(unsigned Context, 105197144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation &DeclEnd); 105297144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner DeclPtrTy ParseUsingDirective(unsigned Context, SourceLocation UsingLoc, 105397144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation &DeclEnd); 105497144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner DeclPtrTy ParseUsingDeclaration(unsigned Context, SourceLocation UsingLoc, 105597144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation &DeclEnd); 105697144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner DeclPtrTy ParseStaticAssertDeclaration(SourceLocation &DeclEnd); 105703bd5a1e9a54b62b10ae8aeb6eb5245e2031d98bAnders Carlsson DeclPtrTy ParseNamespaceAlias(SourceLocation NamespaceLoc, 105897144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation AliasLoc, IdentifierInfo *Alias, 105997144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation &DeclEnd); 1060f67606ae2febe3bb0718f05040c6c4bc2c2c3276Anders Carlsson 1061e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor //===--------------------------------------------------------------------===// 1062e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor // C++ 9: classes [class] and C structs/unions. 106331a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor TypeResult ParseClassName(SourceLocation &EndLocation, 106431a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor const CXXScopeSpec *SS = 0); 10654c97d762d8c5a84f6554e5bfb31d28c90df64158Chris Lattner void ParseClassSpecifier(tok::TokenKind TagTokKind, SourceLocation TagLoc, 10664c97d762d8c5a84f6554e5bfb31d28c90df64158Chris Lattner DeclSpec &DS, 10674d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor const ParsedTemplateInfo &TemplateInfo = ParsedTemplateInfo(), 106806c0fecd197fef21e265a41bca8dc5022de1f864Douglas Gregor AccessSpecifier AS = AS_none); 10694cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void ParseCXXMemberSpecification(SourceLocation StartLoc, unsigned TagType, 1070b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy TagDecl); 1071682bf92db408a6cbc3d37b5496a99b6ef85041ecChris Lattner void ParseCXXClassMemberDeclaration(AccessSpecifier AS); 1072b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner void ParseConstructorInitializer(DeclPtrTy ConstructorDecl); 1073b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner MemInitResult ParseMemInitializer(DeclPtrTy ConstructorDecl); 1074e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor 1075e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor //===--------------------------------------------------------------------===// 1076e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor // C++ 10: Derived classes [class.derived] 1077b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner void ParseBaseClause(DeclPtrTy ClassDecl); 1078b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner BaseResult ParseBaseSpecifier(DeclPtrTy ClassDecl); 10791b7f89846f10681ce3cbe89ef5d60691d55bd918Douglas Gregor AccessSpecifier getAccessSpecifierIfPresent() const; 10801cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 10811cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor //===--------------------------------------------------------------------===// 10821cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor // C++ 13.5: Overloaded operators [over.oper] 1083ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc, if non-NULL, is filled with the location of the last token of 1084ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // the ID. 1085ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl OverloadedOperatorKind TryParseOperatorFunctionId(SourceLocation *EndLoc = 0); 1086ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl TypeTy *ParseConversionFunctionId(SourceLocation *EndLoc = 0); 1087adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor 1088adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor //===--------------------------------------------------------------------===// 1089adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor // C++ 14: Templates [temp] 1090b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner typedef llvm::SmallVector<DeclPtrTy, 4> TemplateParameterList; 1091c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor 1092adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor // C++ 14.1: Template Parameters [temp.param] 10934d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor DeclPtrTy ParseDeclarationStartingWithTemplate(unsigned Context, 10944d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor SourceLocation &DeclEnd, 10954d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor AccessSpecifier AS = AS_none); 1096b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseTemplateDeclarationOrSpecialization(unsigned Context, 109797144fc41a9419bf6d74fc9450e8ef3f6e11f7e0Chris Lattner SourceLocation &DeclEnd, 10984d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor AccessSpecifier AS); 10991426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor DeclPtrTy ParseSingleDeclarationAfterTemplate( 11001426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor unsigned Context, 11014d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor const ParsedTemplateInfo &TemplateInfo, 11021426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor SourceLocation &DeclEnd, 11031426e534b4fca6a05b1120d634aae46be79ca17cDouglas Gregor AccessSpecifier AS=AS_none); 1104c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor bool ParseTemplateParameters(unsigned Depth, 1105c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor TemplateParameterList &TemplateParams, 1106c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor SourceLocation &LAngleLoc, 1107c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor SourceLocation &RAngleLoc); 1108c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor bool ParseTemplateParameterList(unsigned Depth, 1109c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor TemplateParameterList &TemplateParams); 1110b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseTemplateParameter(unsigned Depth, unsigned Position); 1111b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseTypeParameter(unsigned Depth, unsigned Position); 1112b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseTemplateTemplateParameter(unsigned Depth, unsigned Position); 1113b28317a8e5e0e2953d1e5406d753d6c3c7f1e7d2Chris Lattner DeclPtrTy ParseNonTypeTemplateParameter(unsigned Depth, unsigned Position); 1114d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor // C++ 14.3: Template arguments [temp.arg] 11155908e9f25bc9a334c99c095e0b1e6a515445be2dDouglas Gregor typedef llvm::SmallVector<void *, 16> TemplateArgList; 11165908e9f25bc9a334c99c095e0b1e6a515445be2dDouglas Gregor typedef llvm::SmallVector<bool, 16> TemplateArgIsTypeList; 1117c15cb38a4ff717097b32532fbf761c71b1376a02Douglas Gregor typedef llvm::SmallVector<SourceLocation, 16> TemplateArgLocationList; 1118cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor 11197532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor bool ParseTemplateIdAfterTemplateName(TemplateTy Template, 1120cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor SourceLocation TemplateNameLoc, 1121cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor const CXXScopeSpec *SS, 1122cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor bool ConsumeLastToken, 1123cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor SourceLocation &LAngleLoc, 1124cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor TemplateArgList &TemplateArgs, 1125cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor TemplateArgIsTypeList &TemplateArgIsType, 1126cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor TemplateArgLocationList &TemplateArgLocations, 1127cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor SourceLocation &RAngleLoc); 1128cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor 11297532dc66648cfe7432c9fe66dec5225f0ab301c6Douglas Gregor void AnnotateTemplateIdToken(TemplateTy Template, TemplateNameKind TNK, 113039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor const CXXScopeSpec *SS, 113139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation TemplateKWLoc = SourceLocation(), 113239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool AllowTypeAnnotation = true); 113331a19b6989bbf326d2de5ae12e712e2a65ca9c34Douglas Gregor void AnnotateTemplateIdTokenAsType(const CXXScopeSpec *SS = 0); 11345908e9f25bc9a334c99c095e0b1e6a515445be2dDouglas Gregor bool ParseTemplateArgumentList(TemplateArgList &TemplateArgs, 1135c15cb38a4ff717097b32532fbf761c71b1376a02Douglas Gregor TemplateArgIsTypeList &TemplateArgIsType, 1136c15cb38a4ff717097b32532fbf761c71b1376a02Douglas Gregor TemplateArgLocationList &TemplateArgLocations); 11375908e9f25bc9a334c99c095e0b1e6a515445be2dDouglas Gregor void *ParseTemplateArgument(bool &ArgIsType); 11384d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor DeclPtrTy ParseExplicitInstantiation(SourceLocation TemplateLoc, 11394d9a16f36d3b768672d50e6d02000f982ae448d7Douglas Gregor SourceLocation &DeclEnd); 114064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 114164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl //===--------------------------------------------------------------------===// 114264b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // GNU G++: Type Traits [Type-Traits.html in the GCC manual] 114364b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl OwningExprResult ParseUnaryTypeTrait(); 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 1149