Parser.h revision 5908a9293b88a3da57ae59b522275d05e1ab11e0
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" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/Parse/Action.h" 19eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis#include "clang/Parse/DeclSpec.h" 204cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis#include <stack> 211100258c19dd8967ba078c0bc81fc06cea9d033fChris Lattner#include <list> 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 24fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar class AttributeList; 25fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar class PragmaHandler; 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Scope; 273cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner class DiagnosticBuilder; 280102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner class Parser; 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 300102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// PrettyStackTraceParserEntry - If a crash happens while the parser is active, 310102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner/// an entry is printed for it. 320102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattnerclass PrettyStackTraceParserEntry : public llvm::PrettyStackTraceEntry { 330102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Parser &P; 340102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattnerpublic: 350102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner PrettyStackTraceParserEntry(const Parser &p) : P(p) {} 360102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner virtual void print(llvm::raw_ostream &OS) const; 370102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner}; 380102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 390102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Parser - This implements a parser for the C family of languages. After 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parsing units of the grammar, productions are invoked to handle whatever has 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// been read. 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Parser { 450102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner PrettyStackTraceParserEntry CrashInfo; 460102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Preprocessor &PP; 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4997d0205d16fef2a783e785459b5f30f6a9dfbcb9Eric Christopher /// Tok - The current token we are peeking ahead. All parsing methods assume 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// that this is valid. 51d217773f106856a11879ec79dc468efefaf2ee75Chris Lattner Token Tok; 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 534b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // PrevTokLocation - The location of the token we previously 544b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // consumed. This token is used for diagnostics where we expected to 554b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // see a token following another token (e.g., the ';' at the end of 564b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor // a statement). 574b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceLocation PrevTokLocation; 584b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned short ParenCount, BracketCount, BraceCount; 605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Actions - These are the callbacks we invoke as we parse various constructs 625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// in the file. This refers to the common base class between MinimalActions 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and SemaActions for those uses that don't matter. 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Action &Actions; 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Scope *CurScope; 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diagnostic &Diags; 689e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner 699e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner /// ScopeCache - Cache scopes to reduce malloc traffic. 709e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner enum { ScopeCacheSize = 16 }; 719e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner unsigned NumCachedScopes; 729e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *ScopeCache[ScopeCacheSize]; 73662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 74662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar /// Ident_super - IdentifierInfo for "super", to support fast 75662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar /// comparison. 76662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar IdentifierInfo *Ident_super; 77662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 78fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar PragmaHandler *PackHandler; 79fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 8055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// Whether the '>' token acts as an operator or not. This will be 8155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// true except when we are parsing an expression within a C++ 8255f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// template argument list, where the '>' closes the template 8355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor /// argument list. 8455f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor bool GreaterThanIsOperator; 8555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 86f02da89d7bddc319be52605d36442518647116b4Douglas Gregor /// \brief RAII object that makes '>' behave either as an operator 87f02da89d7bddc319be52605d36442518647116b4Douglas Gregor /// or as the closing angle bracket for a template argument list. 88f02da89d7bddc319be52605d36442518647116b4Douglas Gregor struct GreaterThanIsOperatorScope { 8955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor bool &GreaterThanIsOperator; 9055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor bool OldGreaterThanIsOperator; 9155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 92f02da89d7bddc319be52605d36442518647116b4Douglas Gregor GreaterThanIsOperatorScope(bool >IO, bool Val) 9355f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor : GreaterThanIsOperator(GTIO), OldGreaterThanIsOperator(GTIO) { 94f02da89d7bddc319be52605d36442518647116b4Douglas Gregor GreaterThanIsOperator = Val; 9555f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 9655f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 97f02da89d7bddc319be52605d36442518647116b4Douglas Gregor ~GreaterThanIsOperatorScope() { 9855f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor GreaterThanIsOperator = OldGreaterThanIsOperator; 9955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor } 10055f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor }; 10155f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Parser(Preprocessor &PP, Action &Actions); 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ~Parser(); 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const LangOptions &getLang() const { return PP.getLangOptions(); } 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TargetInfo &getTargetInfo() const { return PP.getTargetInfo(); } 1080102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner Preprocessor &getPreprocessor() const { return PP; } 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Action &getActions() const { return Actions; } 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1110102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner const Token &getCurToken() const { return Tok; } 1120102c30896c83f70cf6b6519fd5c674cb981c0b5Chris Lattner 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Type forwarding. All of these are statically 'void*', but they may all be 1145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // different actual classes based on the actions in place. 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::ExprTy ExprTy; 1165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::StmtTy StmtTy; 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::DeclTy DeclTy; 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::TypeTy TypeTy; 119f8268ae3196002bbab6adb830302e79b0f368f13Douglas Gregor typedef Action::BaseTy BaseTy; 1207ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor typedef Action::MemInitTy MemInitTy; 121eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis typedef Action::CXXScopeTy CXXScopeTy; 122c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor typedef Action::TemplateParamsTy TemplateParamsTy; 1237ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 124c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor typedef llvm::SmallVector<TemplateParamsTy *, 4> TemplateParameterLists; 125c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor 126d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor typedef Action::ExprResult ExprResult; 127d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor typedef Action::StmtResult StmtResult; 128d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor typedef Action::BaseResult BaseResult; 129d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor typedef Action::MemInitResult MemInitResult; 130809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor typedef Action::TypeResult TypeResult; 13115faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 13215faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::OwningExprResult OwningExprResult; 13315faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::OwningStmtResult OwningStmtResult; 13415faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 1351d922960e083906a586609ac6978678147250177Sebastian Redl typedef Action::ExprArg ExprArg; 136a60528cdac7deee3991c2b48af4df4f315e49e9dSebastian Redl typedef Action::MultiStmtArg MultiStmtArg; 1371d922960e083906a586609ac6978678147250177Sebastian Redl 13861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl /// Adorns a ExprResult with Actions to make it an OwningExprResult 13961364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningExprResult Owned(ExprResult res) { 14061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return OwningExprResult(Actions, res); 14161364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 14261364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl /// Adorns a StmtResult with Actions to make it an OwningStmtResult 14361364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult Owned(StmtResult res) { 14461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return OwningStmtResult(Actions, res); 14561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 14661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 14761364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningExprResult ExprError() { return OwningExprResult(Actions, true); } 14861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult StmtError() { return OwningStmtResult(Actions, true); } 149d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor 1502f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ExprError(const DiagnosticBuilder &) { return ExprError(); } 1512f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningStmtResult StmtError(const DiagnosticBuilder &) { return StmtError(); } 15261364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parsing methods. 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParseTranslationUnit - All in one method that initializes parses, and 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// shuts down the parser. 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseTranslationUnit(); 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Initialize - Warm up the parser. 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Initialize(); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1631f6443255894429fba384de0d5b6389ef578a5e9Steve Naroff /// ParseTopLevelDecl - Parse one top-level declaration. Returns true if 1641f6443255894429fba384de0d5b6389ef578a5e9Steve Naroff /// the EOF was encountered. 16589307ffaf8acf4d6fdffd72b607ca4fbcfdffc9dSteve Naroff bool ParseTopLevelDecl(DeclTy*& Result); 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Low-Level token peeking and consumption methods. 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenParen - Return true if the cur token is '(' or ')'. 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenParen() const { 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_paren || Tok.getKind() == tok::r_paren; 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenBracket - Return true if the cur token is '[' or ']'. 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenBracket() const { 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_square || Tok.getKind() == tok::r_square; 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenBrace - Return true if the cur token is '{' or '}'. 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenBrace() const { 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_brace || Tok.getKind() == tok::r_brace; 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenStringLiteral - True if this token is a string-literal. 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenStringLiteral() const { 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::string_literal || 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.getKind() == tok::wide_string_literal; 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 191eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeToken - Consume the current 'peek token' and lex the next one. 193d6ecc5cf945ccdf2b931137e364a69cde59ab18bZhongxing Xu /// This does not work with all kinds of tokens: strings and specific other 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// tokens must be consumed with custom methods below. This returns the 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// location of the consumed token. 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeToken() { 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isTokenStringLiteral() && !isTokenParen() && !isTokenBracket() && 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer !isTokenBrace() && 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Should consume special tokens with Consume*Token"); 2004b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2024b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeAnyToken - Dispatch to the right Consume* method based on the 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// current token type. This should only be used in cases where the type of 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the token really isn't known, e.g. in error recovery. 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeAnyToken() { 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isTokenParen()) 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeParen(); 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isTokenBracket()) 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeBracket(); 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isTokenBrace()) 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeBrace(); 215d62701bc5321049353017e9abf1963edd57646aaSteve Naroff else if (isTokenStringLiteral()) 216d62701bc5321049353017e9abf1963edd57646aaSteve Naroff return ConsumeStringToken(); 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeToken(); 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeParen - This consume method keeps the paren count up-to-date. 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeParen() { 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenParen() && "wrong consume method"); 2255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_paren) 2265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++ParenCount; 2275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ParenCount) 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --ParenCount; // Don't let unbalanced )'s drive the count negative. 2294b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2314b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeBracket - This consume method keeps the bracket count up-to-date. 2355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeBracket() { 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenBracket() && "wrong consume method"); 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_square) 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++BracketCount; 2405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (BracketCount) 2415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --BracketCount; // Don't let unbalanced ]'s drive the count negative. 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2434b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2454b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeBrace - This consume method keeps the brace count up-to-date. 2495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeBrace() { 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenBrace() && "wrong consume method"); 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_brace) 2535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++BraceCount; 2545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (BraceCount) 2555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --BraceCount; // Don't let unbalanced }'s drive the count negative. 2565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2574b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2594b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeStringToken - Consume the current 'peek token', lexing a new one 2635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and returning the token kind. This method is specific to strings, as it 2645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// handles string literal concatenation, as per C99 5.1.1.2, translation 2655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// phase #6. 2665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeStringToken() { 2675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenStringLiteral() && 2685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Should only consume string literals with this method"); 2694b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor PrevTokLocation = Tok.getLocation(); 2705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2714b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor return PrevTokLocation; 2725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2746b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// GetLookAheadToken - This peeks ahead N tokens and returns that token 2756b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// without consuming any tokens. LookAhead(0) returns 'Tok', LookAhead(1) 2766b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// returns the token after Tok, etc. 2776b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// 2786b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// Note that this differs from the Preprocessor's LookAhead method, because 2796b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// the Parser always has one token lexed that the preprocessor doesn't. 2806b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// 28103db1b31dd926409b7defc1c90b66549464652c0Argyrios Kyrtzidis const Token &GetLookAheadToken(unsigned N) { 2826b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner if (N == 0 || Tok.is(tok::eof)) return Tok; 2836b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner return PP.LookAhead(N-1); 2846b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner } 285f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis 286f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis /// NextToken - This peeks ahead one token and returns it without 287f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis /// consuming it. 288f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis const Token &NextToken() { 28903db1b31dd926409b7defc1c90b66549464652c0Argyrios Kyrtzidis return PP.LookAhead(0); 290f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis } 2915404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 292eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// TryAnnotateTypeOrScopeToken - If the current token position is on a 293eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// typename (possibly qualified in C++) or a C++ scope specifier not followed 294eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 295eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// with a single annotation token representing the typename or C++ scope 296eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// respectively. 297eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// This simplifies handling of C++ scope specifiers and allows efficient 298eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// backtracking without the need to re-parse and resolve nested-names and 299eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// typenames. 30044802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// It will mainly be called when we expect to treat identifiers as typenames 30144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// (if they are typenames). For example, in C we do not expect identifiers 30244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// inside expressions to be treated as typenames so it will not be called 30344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// for expressions in C. 304a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner /// 305a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner /// This returns true if the token was annotated. 3065b4547318bb179fc76f984f0eeaaf615927e795cChris Lattner bool TryAnnotateTypeOrScopeToken(); 307eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 3084bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis /// TryAnnotateCXXScopeToken - Like TryAnnotateTypeOrScopeToken but only 3095e02c47a7085831586344a9728763cb50540c7f7Chris Lattner /// annotates C++ scope specifiers. This returns true if the token was 3105e02c47a7085831586344a9728763cb50540c7f7Chris Lattner /// annotated. 3115e02c47a7085831586344a9728763cb50540c7f7Chris Lattner bool TryAnnotateCXXScopeToken(); 312eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 3135404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TentativeParsingAction - An object that is used as a kind of "tentative 3145404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// parsing transaction". It gets instantiated to mark the token position and 3155404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// after the token consumption is done, Commit() or Revert() is called to 3165404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// either "commit the consumed tokens" or revert to the previously marked 3175404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// token position. Example: 3185404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// 3195404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TentativeParsingAction TPA; 3205404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// ConsumeToken(); 3215404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// .... 3225404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TPA.Revert(); 3235404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// 3245404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis class TentativeParsingAction { 3255404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis Parser &P; 3265404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis Token PrevTok; 3275404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isActive; 3285404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 3295404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis public: 3305404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis explicit TentativeParsingAction(Parser& p) : P(p) { 3315404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis PrevTok = P.Tok; 3325404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.EnableBacktrackAtThisPos(); 3335404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = true; 3345404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 3355404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis void Commit() { 3365404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(isActive && "Parsing action was finished!"); 3375404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.CommitBacktrackedTokens(); 3385404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = false; 3395404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 3405404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis void Revert() { 3415404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(isActive && "Parsing action was finished!"); 3425404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.Backtrack(); 3435404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.Tok = PrevTok; 3445404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = false; 3455404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 3465404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis ~TentativeParsingAction() { 3475404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(!isActive && "Forgot to call Commit or Revert!"); 3485404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 3495404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis }; 3506b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner 3516b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner 3525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// MatchRHSPunctuation - For punctuation with a LHS and RHS (e.g. '['/']'), 3535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this helper function matches and consumes the specified RHS token if 3545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// present. If not present, it emits the specified diagnostic indicating 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// that the parser failed to match the RHS of the token at LHSLoc. LHSName 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// should be the name of the unmatched LHS token. This returns the location 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the consumed token. 3585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MatchRHSPunctuation(tok::TokenKind RHSTok, 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LHSLoc); 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// input. If so, it is consumed and false is returned. 3635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If the input is malformed, this emits the specified diagnostic. Next, if 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// returned. 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned Diag, 3685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *DiagMsg = "", 3695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind SkipToTok = tok::unknown); 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scope manipulation 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3748935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// ParseScope - Introduces a new scope for parsing. The kind of 3758935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// scope is determined by ScopeFlags. Objects of this type should 3768935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// be created on the stack to coincide with the position where the 3778935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// parser enters the new scope, and this object's constructor will 3788935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// create that new scope. Similarly, once the object is destroyed 3798935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// the parser will exit the scope. 3808935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor class ParseScope { 3818935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Parser *Self; 3828935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope(const ParseScope&); // do not implement 3838935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope& operator=(const ParseScope&); // do not implement 3848935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 3858935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor public: 3868935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ParseScope - Construct a new object to manage a scope in the 3878935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // parser Self where the new Scope is created with the flags 3888935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ScopeFlags, but only when ManageScope is true (the default). If 3898935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ManageScope is false, this object does nothing. 3908935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope(Parser *Self, unsigned ScopeFlags, bool ManageScope = true) 3918935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor : Self(Self) { 3928935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor if (ManageScope) 3938935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self->EnterScope(ScopeFlags); 3948935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor else 3958935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor this->Self = 0; 3968935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 3978935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 3988935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // Exit - Exit the scope associated with this object now, rather 3998935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // than waiting until the object is destroyed. 4008935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor void Exit() { 4018935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor if (Self) { 4028935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self->ExitScope(); 4038935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self = 0; 4048935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 4058935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 4068935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 4078935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ~ParseScope() { 4088935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Exit(); 4098935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 4108935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor }; 4118935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 4125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EnterScope - Start a new scope. 4135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EnterScope(unsigned ScopeFlags); 4145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ExitScope - Pop a scope off the scope stack. 4165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ExitScope(); 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Diagnostic Emission and Error recovery. 42015faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 4213cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID); 4223cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner DiagnosticBuilder Diag(const Token &Tok, unsigned DiagID); 42315faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 4244b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor void SuggestParentheses(SourceLocation Loc, unsigned DK, 4254b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor SourceRange ParenRange); 4264b2d3f7bcc4df31157df443af1b80bcaa9b58bbaDouglas Gregor 4275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SkipUntil - Read tokens until we get to the specified token, then consume 42882c7e6d8215567935d3d52741ccca9876a8ea461Steve Naroff /// it (unless DontConsume is true). Because we cannot guarantee that the 4295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// token will ever occur, this skips to the next token, or to some likely 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 4315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// character. 4325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 4335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If SkipUntil finds the specified token, it returns true, otherwise it 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// returns false. 4355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(tok::TokenKind T, bool StopAtSemi = true, 4365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool DontConsume = false) { 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SkipUntil(&T, 1, StopAtSemi, DontConsume); 4385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(tok::TokenKind T1, tok::TokenKind T2, bool StopAtSemi = true, 4405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool DontConsume = false) { 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind TokArray[] = {T1, T2}; 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SkipUntil(TokArray, 2, StopAtSemi, DontConsume); 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(const tok::TokenKind *Toks, unsigned NumToks, 4455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool StopAtSemi = true, bool DontConsume = false); 4467ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 4475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4484cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Lexing and parsing of C++ inline methods. 4494cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4504cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis struct LexedMethod { 4514cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Action::DeclTy *D; 45272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens Toks; 4534cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis explicit LexedMethod(Action::DeclTy *MD) : D(MD) {} 4544cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis }; 4554cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 45672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// LateParsedDefaultArgument - Keeps track of a parameter that may 45772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// have a default argument that cannot be parsed yet because it 45872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// occurs within a member function declaration inside the class 45972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// (C++ [class.mem]p2). 46072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor struct LateParsedDefaultArgument { 46172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor explicit LateParsedDefaultArgument(Action::DeclTy *P, 46272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens *Toks = 0) 46372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor : Param(P), Toks(Toks) { } 46472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 46572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// Param - The parameter declaration for this parameter. 46672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Action::DeclTy *Param; 46772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 46872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// Toks - The sequence of tokens that comprises the default 46972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// argument expression, not including the '=' or the terminating 47072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// ')' or ','. This will be NULL for parameters that have no 47172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// default argument. 47272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens *Toks; 47372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor }; 47472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 47572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// LateParsedMethodDeclaration - A method declaration inside a class that 47672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// contains at least one entity whose parsing needs to be delayed 47772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// until the class itself is completely-defined, such as a default 47872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// argument (C++ [class.mem]p2). 47972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor struct LateParsedMethodDeclaration { 48072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor explicit LateParsedMethodDeclaration(Action::DeclTy *M) : Method(M) { } 48172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 48272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// Method - The method declaration. 48372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor Action::DeclTy *Method; 48472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 48572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// DefaultArgs - Contains the parameters of the function and 48672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// their default arguments. At least one of the parameters will 48772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// have a default argument, but all of the parameters of the 48872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// method will be stored so that they can be reintroduced into 48972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// scope at the appropriate times. 49072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor llvm::SmallVector<LateParsedDefaultArgument, 8> DefaultArgs; 49172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor }; 49272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 49372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// LateParsedMethodDecls - During parsing of a top (non-nested) C++ 49472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// class, its method declarations that contain parts that won't be 49572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// parsed until after the definiton is completed (C++ [class.mem]p2), 49672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// the method declarations will be stored here with the tokens that 49772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// will be parsed to create those entities. 49872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor typedef std::list<LateParsedMethodDeclaration> LateParsedMethodDecls; 49972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 5004cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// LexedMethodsForTopClass - During parsing of a top (non-nested) C++ class, 5014cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// its inline method definitions and the inline method definitions of its 5024cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// nested classes are lexed and stored here. 50372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor typedef std::list<LexedMethod> LexedMethodsForTopClass; 50472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 50572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 50672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// TopClass - Contains information about parts of the top 50772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// (non-nested) C++ class that will need to be parsed after the 50872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// class is fully defined. 50972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor struct TopClass { 51072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// MethodDecls - Method declarations that contain pieces whose 51172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// parsing will be delayed until the class is fully defined. 51272b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor LateParsedMethodDecls MethodDecls; 51372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor 51472b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// MethodDefs - Methods whose definitions will be parsed once the 51572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// class has been fully defined. 51672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor LexedMethodsForTopClass MethodDefs; 51772b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor }; 5184cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 51972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// TopClassStacks - This is initialized with one TopClass used 5204cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// for lexing all top classes, until a local class in an inline method is 52172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor /// encountered, at which point a new TopClass is pushed here 5224cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// and used until the parsing of that local class is finished. 52372b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor std::stack<TopClass> TopClassStacks; 5244cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 52572b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor TopClass &getCurTopClassStack() { 5264cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(!TopClassStacks.empty() && "No lexed method stacks!"); 5274cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return TopClassStacks.top(); 5284cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 5294cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5304cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void PushTopClassStack() { 53172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor TopClassStacks.push(TopClass()); 5324cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 5334cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void PopTopClassStack() { TopClassStacks.pop(); } 5344cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5354cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis DeclTy *ParseCXXInlineMethodDef(AccessSpecifier AS, Declarator &D); 53672b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor void ParseLexedMethodDeclarations(); 5374cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void ParseLexedMethodDefs(); 53872b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor bool ConsumeAndStoreUntil(tok::TokenKind T1, tok::TokenKind T2, 53972b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor CachedTokens &Toks, 54072b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor tok::TokenKind EarlyAbortIf = tok::unknown, 54172b505b7904b3c9320a1312998800ba76e4f5841Douglas Gregor bool ConsumeFinalToken = true); 5424cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5434cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9: External Definitions. 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *ParseExternalDeclaration(); 546c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor DeclTy *ParseDeclarationOrFunctionDefinition( 547c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor TemplateParameterLists *TemplateParams = 0); 5485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *ParseFunctionDefinition(Declarator &D); 5495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseKNRParamDeclarations(Declarator &D); 550ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc, if non-NULL, is filled with the location of the last token of 551ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // the simple-asm. 552ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl OwningExprResult ParseSimpleAsm(SourceLocation *EndLoc = 0); 553effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl OwningExprResult ParseAsmStringLiteral(); 5545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5553536b443bc50d58a79f14fca9b6842541a434854Steve Naroff // Objective-C External Declarations 556dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff DeclTy *ParseObjCAtDirectives(); 557dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff DeclTy *ParseObjCAtClassDeclaration(SourceLocation atLoc); 558dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff DeclTy *ParseObjCAtInterfaceDeclaration(SourceLocation atLoc, 559dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff AttributeList *prefixAttrs = 0); 56060fcceeedbfc8b4a99cb942e2bc5aeb9e2f92a1fSteve Naroff void ParseObjCClassInstanceVariables(DeclTy *interfaceDecl, 56160fcceeedbfc8b4a99cb942e2bc5aeb9e2f92a1fSteve Naroff SourceLocation atLoc); 562e13b9595dc1e2f4288bec34f3412359f648e84a5Chris Lattner bool ParseObjCProtocolReferences(llvm::SmallVectorImpl<Action::DeclTy*> &P, 563e13b9595dc1e2f4288bec34f3412359f648e84a5Chris Lattner bool WarnOnDeclarations, 564e13b9595dc1e2f4288bec34f3412359f648e84a5Chris Lattner SourceLocation &EndProtoLoc); 56525e077d59a8e8e43b65882b69610a3d5e2aaf53cFariborz Jahanian void ParseObjCInterfaceDeclList(DeclTy *interfaceDecl, 566c81c8144a661a49d7b9dae8d2080dee2e43186ecChris Lattner tok::ObjCKeywordKind contextKey); 567246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar DeclTy *ParseObjCAtProtocolDeclaration(SourceLocation atLoc, 568246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar AttributeList *prefixAttrs = 0); 5693536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 570a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek DeclTy *ObjCImpDecl; 5710416fb9f379b49abb3eb0c1cb2ca75107e5a71d1Steve Naroff 572ac00b7f4a933e60e2f0afd83092339160adc140cFariborz Jahanian DeclTy *ParseObjCAtImplementationDeclaration(SourceLocation atLoc); 573ac00b7f4a933e60e2f0afd83092339160adc140cFariborz Jahanian DeclTy *ParseObjCAtEndDeclaration(SourceLocation atLoc); 574e992af01d14e2e31037562c123af0a71ae1ed374Fariborz Jahanian DeclTy *ParseObjCAtAliasDeclaration(SourceLocation atLoc); 575ac00b7f4a933e60e2f0afd83092339160adc140cFariborz Jahanian DeclTy *ParseObjCPropertySynthesize(SourceLocation atLoc); 576ac00b7f4a933e60e2f0afd83092339160adc140cFariborz Jahanian DeclTy *ParseObjCPropertyDynamic(SourceLocation atLoc); 5775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5784b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian IdentifierInfo *ParseObjCSelector(SourceLocation &MethodLocation); 57934870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Definitions for Objective-c context sensitive keywords recognition. 58034870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner enum ObjCTypeQual { 58134870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner objc_in=0, objc_out, objc_inout, objc_oneway, objc_bycopy, objc_byref, 58234870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner objc_NumQuals 58334870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner }; 584a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek IdentifierInfo *ObjCTypeQuals[objc_NumQuals]; 5850196cab54007ff072ec2642da8911c6b7e8d3fb5Fariborz Jahanian 586335a2d4122e41343fe11a775889b8bec5b14be60Fariborz Jahanian bool isTokIdentifier_in() const; 587d0f97d1716a138a8d9e0df8e5af77334663723d8Fariborz Jahanian 588a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek TypeTy *ParseObjCTypeName(ObjCDeclSpec &DS); 589294494e1cce92043562b4680c613df7fd028c02eSteve Naroff void ParseObjCMethodRequirement(); 59025e077d59a8e8e43b65882b69610a3d5e2aaf53cFariborz Jahanian DeclTy *ParseObjCMethodPrototype(DeclTy *classOrCat, 591c81c8144a661a49d7b9dae8d2080dee2e43186ecChris Lattner tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword); 592bef1185418705e16012b3dd50cd7c260c8d6b79cSteve Naroff DeclTy *ParseObjCMethodDecl(SourceLocation mLoc, tok::TokenKind mType, 5931f7b6f88f18d7f6b10265acec5d41c4ed1897487Fariborz Jahanian DeclTy *classDecl, 59400933591a2795d09dd1acff12a2d21bce7cb12c5Fariborz Jahanian tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword); 595a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void ParseObjCPropertyAttribute(ObjCDeclSpec &DS); 596294494e1cce92043562b4680c613df7fd028c02eSteve Naroff 59771c0a951d08dc7a2a057df8c15f22b36f6aa47c7Steve Naroff DeclTy *ParseObjCMethodDefinition(); 598bcfb06ac6da1aa3c74ac1ef7a49c2807522366e7Steve Naroff 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.5: Expressions. 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6022f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseExpression(); 6032f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseConstantExpression(); 6042f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl // Expr that doesn't include commas. 6052f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseAssignmentExpression(); 6062f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl 607d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseExpressionWithLeadingAt(SourceLocation AtLoc); 6085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 609adf077f46ba5cddcd801a647a5e9a3eb97060df4Eli Friedman OwningExprResult ParseExpressionWithLeadingExtension(SourceLocation ExtLoc); 610adf077f46ba5cddcd801a647a5e9a3eb97060df4Eli Friedman 611d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseRHSOfBinaryExpression(OwningExprResult LHS, 612d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl unsigned MinPrec); 613ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl OwningExprResult ParseCastExpression(bool isUnaryExpression, 614ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl bool isAddressOfOperand = false); 6152f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParsePostfixExpressionSuffix(OwningExprResult LHS); 616d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseSizeofAlignofExpression(); 617d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseBuiltinPrimaryExpression(); 6180cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis 619a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl static const unsigned ExprListSize = 12; 620a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl typedef llvm::SmallVector<ExprTy*, ExprListSize> ExprListTy; 621a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl typedef llvm::SmallVector<SourceLocation, ExprListSize> CommaLocsTy; 6220cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis 6230cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis /// ParseExpressionList - Used for C/C++ (argument-)expression-list. 6240cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis bool ParseExpressionList(ExprListTy &Exprs, CommaLocsTy &CommaLocs); 625d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParenParseOption - Control what ParseParenExpression will parse. 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum ParenParseOption { 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SimpleExpr, // Only parse '(' expression ')' 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundStmt, // Also allow '(' compound-statement ')' 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundLiteral, // Also allow '(' type-name ')' '{' ... '}' 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CastExpr // Also allow '(' type-name ')' <anything> 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 633d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseParenExpression(ParenParseOption &ExprType, 634d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl TypeTy *&CastTy, 635d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl SourceLocation &RParenLoc); 636d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl 637d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseSimpleParenExpression() { // Parse SimpleExpr only. 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ParseSimpleParenExpression(RParenLoc); 6405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 641d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseSimpleParenExpression(SourceLocation &RParenLoc) { 6425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenParseOption Op = SimpleExpr; 6435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TypeTy *CastTy; 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ParseParenExpression(Op, CastTy, RParenLoc); 6455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 64615ff1110c96a26c9315142d407c1f29d86a5ad1fChris Lattner 64720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseStringLiteralExpression(); 648eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 649eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis //===--------------------------------------------------------------------===// 650eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // C++ Expressions 651ebc07d57be9e0722b4b9c66625e1fca43dcc2ee0Sebastian Redl OwningExprResult ParseCXXIdExpression(bool isAddressOfOperand = false); 6524bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 6537a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner /// ParseOptionalCXXScopeSpecifier - Parse global scope or 6547a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner /// nested-name-specifier if present. Returns true if a nested-name-specifier 6557a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner /// was parsed from the token stream. Note that this routine will not parse 6567a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner /// ::new or ::delete, it will just leave them in the token stream. 657a7bc7c880f86bc180684ef032d06df51bcae7a23Chris Lattner /// 6587a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner bool ParseOptionalCXXScopeSpecifier(CXXScopeSpec &SS); 6595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C++ 5.2p1: C++ Casts 66220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXCasts(); 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 665c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // C++ 5.2p1: C++ Type Identification 66620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXTypeid(); 667c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 668c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl //===--------------------------------------------------------------------===// 6694cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // C++ 9.3.2: C++ 'this' pointer 67020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXThis(); 6714cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 6724cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 67350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner // C++ 15: C++ Throw Expression 67420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseThrowExpression(); 675ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc is filled with the location of the last token of the specification. 676ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl bool ParseExceptionSpecification(SourceLocation &EndLoc); 67750dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 67850dd289f45738ed22b7583d52ed2525b927042ffChris Lattner //===--------------------------------------------------------------------===// 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C++ 2.13.5: C++ Boolean Literals 68020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXBoolLiteral(); 6815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 683987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // C++ 5.2.3: Explicit type conversion (functional notation) 68420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXTypeConstructExpression(const DeclSpec &DS); 685987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 686987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 687987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// This should only be called when the current token is known to be part of 688987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// simple-type-specifier. 689987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis void ParseCXXSimpleTypeSpecifier(DeclSpec &DS); 690987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 6912f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor bool ParseCXXTypeSpecifierSeq(DeclSpec &DS); 6922f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 693987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 6944c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // C++ 5.3.4 and 5.3.5: C++ new and delete 695cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl bool ParseExpressionListOrTypeId(ExprListTy &Exprs, Declarator &D); 6964c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl void ParseDirectNewDeclarator(Declarator &D); 69759232d35f5820e334b6c8b007ae8006f4390055dChris Lattner OwningExprResult ParseCXXNewExpression(bool UseGlobal, SourceLocation Start); 69859232d35f5820e334b6c8b007ae8006f4390055dChris Lattner OwningExprResult ParseCXXDeleteExpression(bool UseGlobal, 69959232d35f5820e334b6c8b007ae8006f4390055dChris Lattner SourceLocation Start); 7004c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 7014c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl //===--------------------------------------------------------------------===// 70271b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // C++ if/switch/while/for condition expression. 7032f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseCXXCondition(); 70471b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 70571b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis //===--------------------------------------------------------------------===// 70612e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor // C++ types 70712e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor 70812e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor //===--------------------------------------------------------------------===// 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.8: Initialization. 7100eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner 7110eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// ParseInitializer 7120eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// initializer: [C99 6.7.8] 7130eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// assignment-expression 7140eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// '{' ... 71520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseInitializer() { 7160eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner if (Tok.isNot(tok::l_brace)) 71720df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ParseAssignmentExpression(); 7180eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner return ParseBraceInitializer(); 7190eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner } 72020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseBraceInitializer(); 7215908a9293b88a3da57ae59b522275d05e1ab11e0Douglas Gregor OwningExprResult ParseInitializerWithPotentialDesignator(); 7221d922960e083906a586609ac6978678147250177Sebastian Redl 7235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 724296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // clang Expressions 7251d922960e083906a586609ac6978678147250177Sebastian Redl 7261d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseBlockLiteralExpression(); // ^{...} 727296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff 728296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff //===--------------------------------------------------------------------===// 7295508518a2702b00be3b15a26d772bde968972f54Anders Carlsson // Objective-C Expressions 73014dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 73114dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner bool isTokObjCMessageIdentifierReceiver() const { 73214dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner if (!Tok.is(tok::identifier)) 73314dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner return false; 73414dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 73547246be8ac5b0ddde6c402b8fc6946b6135487b5Chris Lattner IdentifierInfo *II = Tok.getIdentifierInfo(); 736b696ea3a0693798daeafd896d77f0b8f1fec3cc5Douglas Gregor if (Actions.getTypeName(*II, Tok.getLocation(), CurScope)) 73714dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner return true; 73814dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 73947246be8ac5b0ddde6c402b8fc6946b6135487b5Chris Lattner return II == Ident_super; 74014dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner } 7411d922960e083906a586609ac6978678147250177Sebastian Redl 7421d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCAtExpression(SourceLocation AtLocation); 7431d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCStringLiteral(SourceLocation AtLoc); 7441d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCEncodeExpression(SourceLocation AtLoc); 7451d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCSelectorExpression(SourceLocation AtLoc); 7461d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCProtocolExpression(SourceLocation AtLoc); 7471d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCMessageExpression(); 7481d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseObjCMessageExpressionBody(SourceLocation LBracloc, 7491d922960e083906a586609ac6978678147250177Sebastian Redl SourceLocation NameLoc, 7501d922960e083906a586609ac6978678147250177Sebastian Redl IdentifierInfo *ReceiverName, 7511d922960e083906a586609ac6978678147250177Sebastian Redl ExprArg ReceiverExpr); 7521d922960e083906a586609ac6978678147250177Sebastian Redl OwningExprResult ParseAssignmentExprWithObjCMessageExprStart( 7531d922960e083906a586609ac6978678147250177Sebastian Redl SourceLocation LBracloc, SourceLocation NameLoc, 7541d922960e083906a586609ac6978678147250177Sebastian Redl IdentifierInfo *ReceiverName, ExprArg ReceiverExpr); 75561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 7565508518a2702b00be3b15a26d772bde968972f54Anders Carlsson //===--------------------------------------------------------------------===// 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.8: Statements and Blocks. 75861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 75961364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseStatement() { 76061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ParseStatementOrDeclaration(true); 76161364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 76261364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseStatementOrDeclaration(bool OnlyStatement = false); 76361364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseLabeledStatement(); 76461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseCaseStatement(); 76561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseDefaultStatement(); 76661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseCompoundStatement(bool isStmtExpr = false); 76761364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseCompoundStatementBody(bool isStmtExpr = false); 768ff871fb8f9c5906a4dee78afd81f60c3837e16cbChris Lattner bool ParseParenExprOrCondition(OwningExprResult &CondExp, 769ff871fb8f9c5906a4dee78afd81f60c3837e16cbChris Lattner bool OnlyAllowCondition = false); 77061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseIfStatement(); 7719a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseSwitchStatement(); 7729a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseWhileStatement(); 7739a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseDoStatement(); 7749a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseForStatement(); 7759a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseGotoStatement(); 7769a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseContinueStatement(); 7779a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseBreakStatement(); 7789a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseReturnStatement(); 7799a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseAsmStatement(bool &msAsm); 7809a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult FuzzyParseMicrosoftAsmStatement(); 781a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl bool ParseAsmOperandsOpt(llvm::SmallVectorImpl<std::string> &Names, 782a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl llvm::SmallVectorImpl<ExprTy*> &Constraints, 783a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl llvm::SmallVectorImpl<ExprTy*> &Exprs); 784a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 785a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl //===--------------------------------------------------------------------===// 786a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl // C++ 6: Statements and Blocks 787a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 788a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl OwningStmtResult ParseCXXTryBlock(); 789a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl OwningStmtResult ParseCXXCatchBlock(); 790a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 791a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl //===--------------------------------------------------------------------===// 792a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl // Objective-C Statements 793a0fd8652f3302d0f39ed9849b521ee5b76597b0aSebastian Redl 79443bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCAtStatement(SourceLocation atLoc); 79543bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCTryStmt(SourceLocation atLoc); 79643bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCThrowStmt(SourceLocation atLoc); 79743bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCSynchronizedStmt(SourceLocation atLoc); 798b235fc2cf37621c7fc6511bb2b8788c95f9fb9fcAnders Carlsson 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 8015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7: Declarations. 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *ParseDeclaration(unsigned Context); 8048f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner DeclTy *ParseSimpleDeclaration(unsigned Context); 8055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *ParseInitDeclaratorListAfterFirstDeclarator(Declarator &D); 80640e9bc84a2ab49fc33c2b1a95c6674ab2b820e9eChris Lattner DeclTy *ParseFunctionStatementBody(DeclTy *Decl); 807c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor void ParseDeclarationSpecifiers(DeclSpec &DS, 808c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor TemplateParameterLists *TemplateParams = 0); 8097a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner bool ParseOptionalTypeSpecifier(DeclSpec &DS, int &isInvalid, 8107a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner const char *&PrevSpec, 8117a0ab5f387722c83e19c7133b46b16988eb19e45Chris Lattner TemplateParameterLists *TemplateParams = 0); 8125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseSpecifierQualifierList(DeclSpec &DS); 81319d74e1494fe399f0e2a94e9419c095f8214851bFariborz Jahanian 814a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void ParseObjCTypeQualifierList(ObjCDeclSpec &DS); 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseEnumSpecifier(DeclSpec &DS); 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseEnumBody(SourceLocation StartLoc, DeclTy *TagDecl); 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseStructUnionBody(SourceLocation StartLoc, unsigned TagType, 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *TagDecl); 820e13594279a952537ac903325efff57e3edca79d9Chris Lattner void ParseStructDeclaration(DeclSpec &DS, 821e13594279a952537ac903325efff57e3edca79d9Chris Lattner llvm::SmallVectorImpl<FieldDeclarator> &Fields); 8224e6526b2de501f2bbc261fd8017c92c75bd8d8f7Steve Naroff 823eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis bool isDeclarationSpecifier(); 824eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis bool isTypeSpecifierQualifier(); 8255f8aa696619e32bf307232841fedb704ba733b4dSteve Naroff bool isTypeQualifier() const; 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8275404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isDeclarationStatement - Disambiguates between a declaration or an 8285404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// expression statement, when parsing function bodies. 8295404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns true for declaration, false for expression. 8305404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isDeclarationStatement() { 8315404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis if (getLang().CPlusPlus) 8325404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis return isCXXDeclarationStatement(); 8335404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis return isDeclarationSpecifier(); 8345404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 8355404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 836bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// isSimpleDeclaration - Disambiguates between a declaration or an 837bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// expression, mainly used for the C 'clause-1' or the C++ 838bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis // 'for-init-statement' part of a 'for' statement. 839bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// Returns true for declaration, false for expression. 840bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis bool isSimpleDeclaration() { 841bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis if (getLang().CPlusPlus) 842bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis return isCXXSimpleDeclaration(); 843bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis return isDeclarationSpecifier(); 844bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis } 845bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis 8468b642592a35167a3780074e78674e0bece87c40cDouglas Gregor /// \brief Specifies the context in which type-id/expression 8478b642592a35167a3780074e78674e0bece87c40cDouglas Gregor /// disambiguation will occur. 8488b642592a35167a3780074e78674e0bece87c40cDouglas Gregor enum TentativeCXXTypeIdContext { 8498b642592a35167a3780074e78674e0bece87c40cDouglas Gregor TypeIdInParens, 8508b642592a35167a3780074e78674e0bece87c40cDouglas Gregor TypeIdAsTemplateArgument 8518b642592a35167a3780074e78674e0bece87c40cDouglas Gregor }; 8528b642592a35167a3780074e78674e0bece87c40cDouglas Gregor 8538b642592a35167a3780074e78674e0bece87c40cDouglas Gregor 85478c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// isTypeIdInParens - Assumes that a '(' was parsed and now we want to know 85578c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// whether the parens contain an expression or a type-id. 85678c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// Returns true for a type-id and false for an expression. 85778c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis bool isTypeIdInParens() { 85878c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis if (getLang().CPlusPlus) 8598b642592a35167a3780074e78674e0bece87c40cDouglas Gregor return isCXXTypeId(TypeIdInParens); 86078c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis return isTypeSpecifierQualifier(); 86178c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis } 86278c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis 8635404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXDeclarationStatement - C++-specialized function that disambiguates 8645404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// between a declaration or an expression statement, when parsing function 8655404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// bodies. Returns true for declaration, false for expression. 8665404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isCXXDeclarationStatement(); 8675404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 8685404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXSimpleDeclaration - C++-specialized function that disambiguates 8695404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// between a simple-declaration or an expression-statement. 8705404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 8715404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 8725404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns false if the statement is disambiguated as expression. 8735404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isCXXSimpleDeclaration(); 8745404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 8755404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXFunctionDeclarator - Disambiguates between a function declarator or 8765404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// a constructor-style initializer, when parsing declaration statements. 8775404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns true for function declarator and false for constructor-style 878e75d849d9141d8e47d05a91b7b5c04194854e47aArgyrios Kyrtzidis /// initializer. If 'warnIfAmbiguous' is true a warning will be emitted to 879259b0d91f2ff90d8daf39221fe133bf1596c5ffbArgyrios Kyrtzidis /// indicate that the parens were disambiguated as function declarator. 8805404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 8815404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 882e75d849d9141d8e47d05a91b7b5c04194854e47aArgyrios Kyrtzidis bool isCXXFunctionDeclarator(bool warnIfAmbiguous); 8835404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 884a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// isCXXConditionDeclaration - Disambiguates between a declaration or an 885a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// expression for a condition of a if/switch/while/for statement. 886a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 887a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 888a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis bool isCXXConditionDeclaration(); 889a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis 8908b642592a35167a3780074e78674e0bece87c40cDouglas Gregor bool isCXXTypeId(TentativeCXXTypeIdContext Context); 89178c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis 892b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// TPResult - Used as the result value for functions whose purpose is to 893b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// disambiguate C++ constructs by "tentatively parsing" them. 894b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// This is a class instead of a simple enum because the implicit enum-to-bool 895b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// conversions may cause subtle bugs. 896b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis class TPResult { 897b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis enum Result { 898b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_true, 899b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_false, 900b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_ambiguous, 901b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_error 902b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis }; 903b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis Result Res; 904b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult(Result result) : Res(result) {} 905b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis public: 906b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult True() { return TPR_true; } 907b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult False() { return TPR_false; } 908b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult Ambiguous() { return TPR_ambiguous; } 909b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult Error() { return TPR_error; } 910b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis 911b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis bool operator==(const TPResult &RHS) const { return Res == RHS.Res; } 912b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis bool operator!=(const TPResult &RHS) const { return Res != RHS.Res; } 913b47e38683f288cd4a73098091d629df417377a6bArgyrios Kyrtzidis }; 914b47e38683f288cd4a73098091d629df417377a6bArgyrios Kyrtzidis 915b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// isCXXDeclarationSpecifier - Returns TPResult::True() if it is a 916b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// declaration specifier, TPResult::False() if it is not, 917b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// TPResult::Ambiguous() if it could be either a decl-specifier or a 918b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// function-style cast, and TPResult::Error() if a parsing error was 919b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// encountered. 9205404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Doesn't consume tokens. 921b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult isCXXDeclarationSpecifier(); 9225404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 9235404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis // "Tentative parsing" functions, used for disambiguation. If a parsing error 924b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // is encountered they will return TPResult::Error(). 925b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // Returning TPResult::True()/False() indicates that the ambiguity was 926b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // resolved and tentative parsing may stop. TPResult::Ambiguous() indicates 927b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // that more tentative parsing is necessary for disambiguation. 9285404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis // They all consume tokens, so backtracking should be used after calling them. 9295404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 930b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseDeclarationSpecifier(); 931b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseSimpleDeclaration(); 932b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseTypeofSpecifier(); 933b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseInitDeclaratorList(); 93478c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis TPResult TryParseDeclarator(bool mayBeAbstract, bool mayHaveIdentifier=true); 935b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseParameterDeclarationClause(); 936b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseFunctionDeclarator(); 937b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseBracketDeclarator(); 9385404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 939809070a886684cb5b92eb0e00a6581ab1fa6b17aDouglas Gregor TypeResult ParseTypeName(); 94098eb8a7a702b95183ed015706b1f1c66f5cb27a4Mike Stump void ParseBlockId(); 941ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc, if non-NULL, is filled with the location of the last token of 942ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // the attribute list. 943ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl AttributeList *ParseAttributes(SourceLocation *EndLoc = 0); 944f59e17ecf06ac60065e2d02058bd6f21f5d216ccSteve Naroff void FuzzyParseMicrosoftDeclSpec(); 945d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff void ParseTypeofSpecifier(DeclSpec &DS); 946eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 947eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// DeclaratorScopeObj - RAII object used in Parser::ParseDirectDeclarator to 948eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// enter a new C++ declarator scope and exit it when the function is 949eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// finished. 950eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis class DeclaratorScopeObj { 951eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Parser &P; 952751810234ffb45327f23c5f9fda0b944e480bd2bArgyrios Kyrtzidis CXXScopeSpec &SS; 953eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis public: 954eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DeclaratorScopeObj(Parser &p, CXXScopeSpec &ss) : P(p), SS(ss) {} 955eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 956eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis void EnterDeclaratorScope() { 957eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (SS.isSet()) 958eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis P.Actions.ActOnCXXEnterDeclaratorScope(P.CurScope, SS); 959eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 960eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 961eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ~DeclaratorScopeObj() { 962eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (SS.isSet()) 9630a59acb9ae36077ce46fb2807956c5e84f0f6837Douglas Gregor P.Actions.ActOnCXXExitDeclaratorScope(P.CurScope, SS); 964eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 965eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis }; 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParseDeclarator - Parse and verify a newly-initialized declarator. 9685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseDeclarator(Declarator &D); 9694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl /// A function that parses a variant of direct-declarator. 9704c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl typedef void (Parser::*DirectDeclParseFunction)(Declarator&); 9714c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl void ParseDeclaratorInternal(Declarator &D, 9724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl DirectDeclParseFunction DirectDeclParser); 97385b5a45803784a5465f69baf6f8d6e1eacaa5af5Chris Lattner void ParseTypeQualifierListOpt(DeclSpec &DS, bool AttributesAllowed = true); 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseDirectDeclarator(Declarator &D); 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseParenDeclarator(Declarator &D); 9767399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner void ParseFunctionDeclarator(SourceLocation LParenLoc, Declarator &D, 9777399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner AttributeList *AttrList = 0, 9787399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner bool RequiresArg = false); 97966d28650752eeac0b02802a1d8cea425cb6b1c0fChris Lattner void ParseFunctionDeclaratorIdentifierList(SourceLocation LParenLoc, 98066d28650752eeac0b02802a1d8cea425cb6b1c0fChris Lattner Declarator &D); 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseBracketDeclarator(Declarator &D); 9828f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner 9838f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner //===--------------------------------------------------------------------===// 9848f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner // C++ 7: Declarations [dcl.dcl] 9858f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner 9868f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner DeclTy *ParseNamespace(unsigned Context); 987c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DeclTy *ParseLinkage(unsigned Context); 988f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor DeclTy *ParseUsingDirectiveOrDeclaration(unsigned Context); 989f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor DeclTy *ParseUsingDirective(unsigned Context, SourceLocation UsingLoc); 990f780abc21c39cd4731b9e38f2d2d9f7d1510bd7bDouglas Gregor DeclTy *ParseUsingDeclaration(unsigned Context, SourceLocation UsingLoc); 991511d7aba3b12853fdb88729a0313b80a60eab8adAnders Carlsson DeclTy *ParseStaticAssertDeclaration(); 9928f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner 993e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor //===--------------------------------------------------------------------===// 994e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor // C++ 9: classes [class] and C structs/unions. 9957f43d6764797ab21216421aeb00f4ec314d503d1Douglas Gregor TypeTy *ParseClassName(SourceLocation &EndLocation, 9967f43d6764797ab21216421aeb00f4ec314d503d1Douglas Gregor const CXXScopeSpec *SS = 0); 997c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor void ParseClassSpecifier(DeclSpec &DS, 998c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor TemplateParameterLists *TemplateParams = 0); 9994cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void ParseCXXMemberSpecification(SourceLocation StartLoc, unsigned TagType, 10004cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis DeclTy *TagDecl); 10014cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis DeclTy *ParseCXXClassMemberDeclaration(AccessSpecifier AS); 10027ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor void ParseConstructorInitializer(DeclTy *ConstructorDecl); 10037ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor MemInitResult ParseMemInitializer(DeclTy *ConstructorDecl); 1004e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor 1005e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor //===--------------------------------------------------------------------===// 1006e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor // C++ 10: Derived classes [class.derived] 1007e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor void ParseBaseClause(DeclTy *ClassDecl); 1008f8268ae3196002bbab6adb830302e79b0f368f13Douglas Gregor BaseResult ParseBaseSpecifier(DeclTy *ClassDecl); 10091b7f89846f10681ce3cbe89ef5d60691d55bd918Douglas Gregor AccessSpecifier getAccessSpecifierIfPresent() const; 10101cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 10111cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor //===--------------------------------------------------------------------===// 10121cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor // C++ 13.5: Overloaded operators [over.oper] 1013ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // EndLoc, if non-NULL, is filled with the location of the last token of 1014ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl // the ID. 1015ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl OverloadedOperatorKind TryParseOperatorFunctionId(SourceLocation *EndLoc = 0); 1016ab197baec16bacade82325fb274cf6b992ac5d8aSebastian Redl TypeTy *ParseConversionFunctionId(SourceLocation *EndLoc = 0); 1017adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor 1018adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor //===--------------------------------------------------------------------===// 1019adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor // C++ 14: Templates [temp] 1020c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor typedef llvm::SmallVector<DeclTy *, 4> TemplateParameterList; 1021c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor 1022adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor // C++ 14.1: Template Parameters [temp.param] 1023cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor DeclTy *ParseTemplateDeclarationOrSpecialization(unsigned Context); 1024c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor bool ParseTemplateParameters(unsigned Depth, 1025c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor TemplateParameterList &TemplateParams, 1026c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor SourceLocation &LAngleLoc, 1027c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor SourceLocation &RAngleLoc); 1028c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor bool ParseTemplateParameterList(unsigned Depth, 1029c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor TemplateParameterList &TemplateParams); 1030c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor DeclTy *ParseTemplateParameter(unsigned Depth, unsigned Position); 1031c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor DeclTy *ParseTypeParameter(unsigned Depth, unsigned Position); 1032c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor DeclTy *ParseTemplateTemplateParameter(unsigned Depth, unsigned Position); 1033c4b4e7b8f6ca9b036824e048af49cd2a52b57cdfDouglas Gregor DeclTy *ParseNonTypeTemplateParameter(unsigned Depth, unsigned Position); 1034d6fb7ef028d9aa0b3e8943b7bc049c524437b407Douglas Gregor // C++ 14.3: Template arguments [temp.arg] 10355908e9f25bc9a334c99c095e0b1e6a515445be2dDouglas Gregor typedef llvm::SmallVector<void *, 16> TemplateArgList; 10365908e9f25bc9a334c99c095e0b1e6a515445be2dDouglas Gregor typedef llvm::SmallVector<bool, 16> TemplateArgIsTypeList; 1037c15cb38a4ff717097b32532fbf761c71b1376a02Douglas Gregor typedef llvm::SmallVector<SourceLocation, 16> TemplateArgLocationList; 1038cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor 1039cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor bool ParseTemplateIdAfterTemplateName(DeclTy *Template, 1040cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor SourceLocation TemplateNameLoc, 1041cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor const CXXScopeSpec *SS, 1042cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor bool ConsumeLastToken, 1043cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor SourceLocation &LAngleLoc, 1044cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor TemplateArgList &TemplateArgs, 1045cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor TemplateArgIsTypeList &TemplateArgIsType, 1046cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor TemplateArgLocationList &TemplateArgLocations, 1047cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor SourceLocation &RAngleLoc); 1048cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor 104955f6b14230c94272efbbcdd89a92224c8db9f225Douglas Gregor void AnnotateTemplateIdToken(DeclTy *Template, TemplateNameKind TNK, 105039a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor const CXXScopeSpec *SS, 105139a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor SourceLocation TemplateKWLoc = SourceLocation(), 105239a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool AllowTypeAnnotation = true); 105339a8de10c18365bde7062d8959b7ed525449c561Douglas Gregor bool AnnotateTemplateIdTokenAsType(const CXXScopeSpec *SS = 0); 10545908e9f25bc9a334c99c095e0b1e6a515445be2dDouglas Gregor bool ParseTemplateArgumentList(TemplateArgList &TemplateArgs, 1055c15cb38a4ff717097b32532fbf761c71b1376a02Douglas Gregor TemplateArgIsTypeList &TemplateArgIsType, 1056c15cb38a4ff717097b32532fbf761c71b1376a02Douglas Gregor TemplateArgLocationList &TemplateArgLocations); 10575908e9f25bc9a334c99c095e0b1e6a515445be2dDouglas Gregor void *ParseTemplateArgument(bool &ArgIsType); 105864b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl 105964b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl //===--------------------------------------------------------------------===// 106064b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl // GNU G++: Type Traits [Type-Traits.html in the GCC manual] 106164b45f7e0d3167f040841ac2920aead7f080730dSebastian Redl OwningExprResult ParseUnaryTypeTrait(); 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 1067