Parser.h revision ff871fb8f9c5906a4dee78afd81f60c3837e16cb
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> 215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 23fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar class AttributeList; 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class DeclSpec; 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Declarator; 26e13594279a952537ac903325efff57e3edca79d9Chris Lattner class FieldDeclarator; 27fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar class ObjCDeclSpec; 28fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar class PragmaHandler; 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer class Scope; 303cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner class DiagnosticBuilder; 315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Parser - This implements a parser for the C family of languages. After 335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// parsing units of the grammar, productions are invoked to handle whatever has 345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// been read. 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Parser { 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Preprocessor &PP; 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3997d0205d16fef2a783e785459b5f30f6a9dfbcb9Eric Christopher /// Tok - The current token we are peeking ahead. All parsing methods assume 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// that this is valid. 41d217773f106856a11879ec79dc468efefaf2ee75Chris Lattner Token Tok; 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned short ParenCount, BracketCount, BraceCount; 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Actions - These are the callbacks we invoke as we parse various constructs 465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// in the file. This refers to the common base class between MinimalActions 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and SemaActions for those uses that don't matter. 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Action &Actions; 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Scope *CurScope; 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Diagnostic &Diags; 529e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner 539e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner /// ScopeCache - Cache scopes to reduce malloc traffic. 549e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner enum { ScopeCacheSize = 16 }; 559e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner unsigned NumCachedScopes; 569e344c65b1e8b83e1d3ada507cf653526ff2c005Chris Lattner Scope *ScopeCache[ScopeCacheSize]; 57662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 58662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar /// Ident_super - IdentifierInfo for "super", to support fast 59662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar /// comparison. 60662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar IdentifierInfo *Ident_super; 61662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar 62fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar PragmaHandler *PackHandler; 63fcdd8fe26de3eee44927600bf1853e21bd90dd84Daniel Dunbar 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Parser(Preprocessor &PP, Action &Actions); 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ~Parser(); 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const LangOptions &getLang() const { return PP.getLangOptions(); } 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TargetInfo &getTargetInfo() const { return PP.getTargetInfo(); } 705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Action &getActions() const { return Actions; } 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Type forwarding. All of these are statically 'void*', but they may all be 735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // different actual classes based on the actions in place. 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::ExprTy ExprTy; 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::StmtTy StmtTy; 765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::DeclTy DeclTy; 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer typedef Action::TypeTy TypeTy; 78f8268ae3196002bbab6adb830302e79b0f368f13Douglas Gregor typedef Action::BaseTy BaseTy; 797ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor typedef Action::MemInitTy MemInitTy; 80eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis typedef Action::CXXScopeTy CXXScopeTy; 817ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 8215faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::ExprResult ExprResult; 8315faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::StmtResult StmtResult; 8415faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::BaseResult BaseResult; 8515faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::MemInitResult MemInitResult; 8615faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 8715faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::OwningExprResult OwningExprResult; 8815faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl typedef Action::OwningStmtResult OwningStmtResult; 8915faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 9061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl /// Adorns a ExprResult with Actions to make it an OwningExprResult 9161364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningExprResult Owned(ExprResult res) { 9261364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return OwningExprResult(Actions, res); 9361364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 9461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl /// Adorns a StmtResult with Actions to make it an OwningStmtResult 9561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult Owned(StmtResult res) { 9661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return OwningStmtResult(Actions, res); 9761364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 9861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 9961364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningExprResult ExprError() { return OwningExprResult(Actions, true); } 10061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult StmtError() { return OwningStmtResult(Actions, true); } 1012f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ExprError(const DiagnosticBuilder &) { return ExprError(); } 1022f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningStmtResult StmtError(const DiagnosticBuilder &) { return StmtError(); } 10361364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Parsing methods. 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParseTranslationUnit - All in one method that initializes parses, and 1075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// shuts down the parser. 1085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseTranslationUnit(); 1095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// Initialize - Warm up the parser. 1115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void Initialize(); 1135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1141f6443255894429fba384de0d5b6389ef578a5e9Steve Naroff /// ParseTopLevelDecl - Parse one top-level declaration. Returns true if 1151f6443255894429fba384de0d5b6389ef578a5e9Steve Naroff /// the EOF was encountered. 11689307ffaf8acf4d6fdffd72b607ca4fbcfdffc9dSteve Naroff bool ParseTopLevelDecl(DeclTy*& Result); 1175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 1195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 1205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Low-Level token peeking and consumption methods. 1215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // 1225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenParen - Return true if the cur token is '(' or ')'. 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenParen() const { 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_paren || Tok.getKind() == tok::r_paren; 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenBracket - Return true if the cur token is '[' or ']'. 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenBracket() const { 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_square || Tok.getKind() == tok::r_square; 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenBrace - Return true if the cur token is '{' or '}'. 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenBrace() const { 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::l_brace || Tok.getKind() == tok::r_brace; 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isTokenStringLiteral - True if this token is a string-literal. 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isTokenStringLiteral() const { 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return Tok.getKind() == tok::string_literal || 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Tok.getKind() == tok::wide_string_literal; 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 142eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeToken - Consume the current 'peek token' and lex the next one. 144d6ecc5cf945ccdf2b931137e364a69cde59ab18bZhongxing Xu /// This does not work with all kinds of tokens: strings and specific other 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// tokens must be consumed with custom methods below. This returns the 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// location of the consumed token. 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeToken() { 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isTokenStringLiteral() && !isTokenParen() && !isTokenBracket() && 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer !isTokenBrace() && 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Should consume special tokens with Consume*Token"); 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L = Tok.getLocation(); 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return L; 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeAnyToken - Dispatch to the right Consume* method based on the 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// current token type. This should only be used in cases where the type of 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// the token really isn't known, e.g. in error recovery. 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeAnyToken() { 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isTokenParen()) 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeParen(); 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isTokenBracket()) 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeBracket(); 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (isTokenBrace()) 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeBrace(); 166d62701bc5321049353017e9abf1963edd57646aaSteve Naroff else if (isTokenStringLiteral()) 167d62701bc5321049353017e9abf1963edd57646aaSteve Naroff return ConsumeStringToken(); 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ConsumeToken(); 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeParen - This consume method keeps the paren count up-to-date. 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeParen() { 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenParen() && "wrong consume method"); 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_paren) 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++ParenCount; 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (ParenCount) 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --ParenCount; // Don't let unbalanced )'s drive the count negative. 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L = Tok.getLocation(); 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return L; 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeBracket - This consume method keeps the bracket count up-to-date. 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeBracket() { 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenBracket() && "wrong consume method"); 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_square) 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++BracketCount; 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (BracketCount) 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --BracketCount; // Don't let unbalanced ]'s drive the count negative. 1935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L = Tok.getLocation(); 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return L; 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeBrace - This consume method keeps the brace count up-to-date. 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeBrace() { 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenBrace() && "wrong consume method"); 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (Tok.getKind() == tok::l_brace) 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ++BraceCount; 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else if (BraceCount) 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer --BraceCount; // Don't let unbalanced }'s drive the count negative. 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L = Tok.getLocation(); 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return L; 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ConsumeStringToken - Consume the current 'peek token', lexing a new one 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and returning the token kind. This method is specific to strings, as it 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// handles string literal concatenation, as per C99 5.1.1.2, translation 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// phase #6. 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation ConsumeStringToken() { 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isTokenStringLiteral() && 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Should only consume string literals with this method"); 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L = Tok.getLocation(); 2215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PP.Lex(Tok); 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return L; 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2256b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// GetLookAheadToken - This peeks ahead N tokens and returns that token 2266b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// without consuming any tokens. LookAhead(0) returns 'Tok', LookAhead(1) 2276b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// returns the token after Tok, etc. 2286b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// 2296b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// Note that this differs from the Preprocessor's LookAhead method, because 2306b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// the Parser always has one token lexed that the preprocessor doesn't. 2316b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner /// 23203db1b31dd926409b7defc1c90b66549464652c0Argyrios Kyrtzidis const Token &GetLookAheadToken(unsigned N) { 2336b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner if (N == 0 || Tok.is(tok::eof)) return Tok; 2346b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner return PP.LookAhead(N-1); 2356b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner } 236f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis 237f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis /// NextToken - This peeks ahead one token and returns it without 238f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis /// consuming it. 239f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis const Token &NextToken() { 24003db1b31dd926409b7defc1c90b66549464652c0Argyrios Kyrtzidis return PP.LookAhead(0); 241f7da726f09a6b7c5b9f5308e9690cb015398e671Argyrios Kyrtzidis } 2425404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 243eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// TryAnnotateTypeOrScopeToken - If the current token position is on a 244eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// typename (possibly qualified in C++) or a C++ scope specifier not followed 245eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// by a typename, TryAnnotateTypeOrScopeToken will replace one or more tokens 246eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// with a single annotation token representing the typename or C++ scope 247eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// respectively. 248eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// This simplifies handling of C++ scope specifiers and allows efficient 249eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// backtracking without the need to re-parse and resolve nested-names and 250eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// typenames. 25144802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// It will mainly be called when we expect to treat identifiers as typenames 25244802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// (if they are typenames). For example, in C we do not expect identifiers 25344802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// inside expressions to be treated as typenames so it will not be called 25444802cc435d5122701e4f1a9354381cff4b171c0Argyrios Kyrtzidis /// for expressions in C. 255eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis void TryAnnotateTypeOrScopeToken(); 256eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 2574bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis /// TryAnnotateCXXScopeToken - Like TryAnnotateTypeOrScopeToken but only 258eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// annotates C++ scope specifiers. 2594bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis void TryAnnotateCXXScopeToken(); 260eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 2615404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TentativeParsingAction - An object that is used as a kind of "tentative 2625404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// parsing transaction". It gets instantiated to mark the token position and 2635404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// after the token consumption is done, Commit() or Revert() is called to 2645404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// either "commit the consumed tokens" or revert to the previously marked 2655404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// token position. Example: 2665404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// 2675404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TentativeParsingAction TPA; 2685404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// ConsumeToken(); 2695404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// .... 2705404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// TPA.Revert(); 2715404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// 2725404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis class TentativeParsingAction { 2735404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis Parser &P; 2745404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis Token PrevTok; 2755404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isActive; 2765404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 2775404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis public: 2785404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis explicit TentativeParsingAction(Parser& p) : P(p) { 2795404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis PrevTok = P.Tok; 2805404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.EnableBacktrackAtThisPos(); 2815404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = true; 2825404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 2835404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis void Commit() { 2845404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(isActive && "Parsing action was finished!"); 2855404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.CommitBacktrackedTokens(); 2865404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = false; 2875404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 2885404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis void Revert() { 2895404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(isActive && "Parsing action was finished!"); 2905404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.PP.Backtrack(); 2915404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis P.Tok = PrevTok; 2925404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis isActive = false; 2935404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 2945404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis ~TentativeParsingAction() { 2955404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis assert(!isActive && "Forgot to call Commit or Revert!"); 2965404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 2975404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis }; 2986b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner 2996b884508c3bc97cc9df9516adb92fbf88dd0a2e4Chris Lattner 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// MatchRHSPunctuation - For punctuation with a LHS and RHS (e.g. '['/']'), 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this helper function matches and consumes the specified RHS token if 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// present. If not present, it emits the specified diagnostic indicating 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// that the parser failed to match the RHS of the token at LHSLoc. LHSName 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// should be the name of the unmatched LHS token. This returns the location 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the consumed token. 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MatchRHSPunctuation(tok::TokenKind RHSTok, 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation LHSLoc); 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ExpectAndConsume - The parser expects that 'ExpectedTok' is next in the 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// input. If so, it is consumed and false is returned. 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If the input is malformed, this emits the specified diagnostic. Next, if 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SkipToTok is specified, it calls SkipUntil(SkipToTok). Finally, true is 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// returned. 3155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool ExpectAndConsume(tok::TokenKind ExpectedTok, unsigned Diag, 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *DiagMsg = "", 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind SkipToTok = tok::unknown); 3185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Scope manipulation 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3228935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// ParseScope - Introduces a new scope for parsing. The kind of 3238935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// scope is determined by ScopeFlags. Objects of this type should 3248935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// be created on the stack to coincide with the position where the 3258935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// parser enters the new scope, and this object's constructor will 3268935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// create that new scope. Similarly, once the object is destroyed 3278935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor /// the parser will exit the scope. 3288935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor class ParseScope { 3298935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Parser *Self; 3308935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope(const ParseScope&); // do not implement 3318935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope& operator=(const ParseScope&); // do not implement 3328935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 3338935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor public: 3348935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ParseScope - Construct a new object to manage a scope in the 3358935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // parser Self where the new Scope is created with the flags 3368935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ScopeFlags, but only when ManageScope is true (the default). If 3378935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // ManageScope is false, this object does nothing. 3388935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ParseScope(Parser *Self, unsigned ScopeFlags, bool ManageScope = true) 3398935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor : Self(Self) { 3408935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor if (ManageScope) 3418935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self->EnterScope(ScopeFlags); 3428935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor else 3438935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor this->Self = 0; 3448935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 3458935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 3468935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // Exit - Exit the scope associated with this object now, rather 3478935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor // than waiting until the object is destroyed. 3488935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor void Exit() { 3498935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor if (Self) { 3508935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self->ExitScope(); 3518935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Self = 0; 3528935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 3538935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 3548935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 3558935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor ~ParseScope() { 3568935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor Exit(); 3578935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor } 3588935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor }; 3598935b8b49053122ddd3ab4cd59af0fe5eb9c23cfDouglas Gregor 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// EnterScope - Start a new scope. 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void EnterScope(unsigned ScopeFlags); 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ExitScope - Pop a scope off the scope stack. 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ExitScope(); 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Diagnostic Emission and Error recovery. 36815faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 3693cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner DiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID); 3703cbfe2c4159e0a219ae660d50625c013aa4afbd0Chris Lattner DiagnosticBuilder Diag(const Token &Tok, unsigned DiagID); 37115faa7fdfb496489dec9470aa5eb699b29ecdaccSebastian Redl 3725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SkipUntil - Read tokens until we get to the specified token, then consume 37382c7e6d8215567935d3d52741ccca9876a8ea461Steve Naroff /// it (unless DontConsume is true). Because we cannot guarantee that the 3745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// token will ever occur, this skips to the next token, or to some likely 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// good stopping point. If StopAtSemi is true, skipping will stop at a ';' 3765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// character. 3775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 3785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// If SkipUntil finds the specified token, it returns true, otherwise it 3795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// returns false. 3805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(tok::TokenKind T, bool StopAtSemi = true, 3815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool DontConsume = false) { 3825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SkipUntil(&T, 1, StopAtSemi, DontConsume); 3835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(tok::TokenKind T1, tok::TokenKind T2, bool StopAtSemi = true, 3855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool DontConsume = false) { 3865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer tok::TokenKind TokArray[] = {T1, T2}; 3875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SkipUntil(TokArray, 2, StopAtSemi, DontConsume); 3885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool SkipUntil(const tok::TokenKind *Toks, unsigned NumToks, 3905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool StopAtSemi = true, bool DontConsume = false); 3917ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor 3925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 3934cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // Lexing and parsing of C++ inline methods. 3944cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 3954cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis typedef llvm::SmallVector<Token, 32> TokensTy; 3964cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis struct LexedMethod { 3974cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis Action::DeclTy *D; 3984cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis TokensTy Toks; 3994cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis explicit LexedMethod(Action::DeclTy *MD) : D(MD) {} 4004cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis }; 4014cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4024cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// LexedMethodsForTopClass - During parsing of a top (non-nested) C++ class, 4034cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// its inline method definitions and the inline method definitions of its 4044cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// nested classes are lexed and stored here. 4054cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis typedef std::stack<LexedMethod> LexedMethodsForTopClass; 4064cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4074cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// TopClassStacks - This is initialized with one LexedMethodsForTopClass used 4084cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// for lexing all top classes, until a local class in an inline method is 4094cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// encountered, at which point a new LexedMethodsForTopClass is pushed here 4104cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis /// and used until the parsing of that local class is finished. 4114cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis std::stack<LexedMethodsForTopClass> TopClassStacks; 4124cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4134cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis LexedMethodsForTopClass &getCurTopClassStack() { 4144cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis assert(!TopClassStacks.empty() && "No lexed method stacks!"); 4154cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis return TopClassStacks.top(); 4164cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 4174cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4184cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void PushTopClassStack() { 4194cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis TopClassStacks.push(LexedMethodsForTopClass()); 4204cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis } 4214cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void PopTopClassStack() { TopClassStacks.pop(); } 4224cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4234cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis DeclTy *ParseCXXInlineMethodDef(AccessSpecifier AS, Declarator &D); 4244cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void ParseLexedMethodDefs(); 4253f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor bool ConsumeAndStoreUntil(tok::TokenKind T, TokensTy &Toks, 4263f08d181f620e6bf4971c436fc9878f98a02bbe3Douglas Gregor tok::TokenKind EarlyAbortIf = tok::unknown); 4274cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 4284cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 4295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.9: External Definitions. 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *ParseExternalDeclaration(); 4315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *ParseDeclarationOrFunctionDefinition(); 4325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *ParseFunctionDefinition(Declarator &D); 4335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseKNRParamDeclarations(Declarator &D); 434effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl OwningExprResult ParseSimpleAsm(); 435effa8d1c97b00a3f53e972b0e61d9aade5ea1c57Sebastian Redl OwningExprResult ParseAsmStringLiteral(); 4365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4373536b443bc50d58a79f14fca9b6842541a434854Steve Naroff // Objective-C External Declarations 438dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff DeclTy *ParseObjCAtDirectives(); 439dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff DeclTy *ParseObjCAtClassDeclaration(SourceLocation atLoc); 440dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff DeclTy *ParseObjCAtInterfaceDeclaration(SourceLocation atLoc, 441dac269b65eed82182fc3e96566dedd6562dfe11eSteve Naroff AttributeList *prefixAttrs = 0); 44260fcceeedbfc8b4a99cb942e2bc5aeb9e2f92a1fSteve Naroff void ParseObjCClassInstanceVariables(DeclTy *interfaceDecl, 44360fcceeedbfc8b4a99cb942e2bc5aeb9e2f92a1fSteve Naroff SourceLocation atLoc); 444e13b9595dc1e2f4288bec34f3412359f648e84a5Chris Lattner bool ParseObjCProtocolReferences(llvm::SmallVectorImpl<Action::DeclTy*> &P, 445e13b9595dc1e2f4288bec34f3412359f648e84a5Chris Lattner bool WarnOnDeclarations, 446e13b9595dc1e2f4288bec34f3412359f648e84a5Chris Lattner SourceLocation &EndProtoLoc); 44725e077d59a8e8e43b65882b69610a3d5e2aaf53cFariborz Jahanian void ParseObjCInterfaceDeclList(DeclTy *interfaceDecl, 448c81c8144a661a49d7b9dae8d2080dee2e43186ecChris Lattner tok::ObjCKeywordKind contextKey); 449246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar DeclTy *ParseObjCAtProtocolDeclaration(SourceLocation atLoc, 450246e70f69cb8aeb67225c54690f1c6b25abd5a86Daniel Dunbar AttributeList *prefixAttrs = 0); 4513536b443bc50d58a79f14fca9b6842541a434854Steve Naroff 452a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek DeclTy *ObjCImpDecl; 4530416fb9f379b49abb3eb0c1cb2ca75107e5a71d1Steve Naroff 454ac00b7f4a933e60e2f0afd83092339160adc140cFariborz Jahanian DeclTy *ParseObjCAtImplementationDeclaration(SourceLocation atLoc); 455ac00b7f4a933e60e2f0afd83092339160adc140cFariborz Jahanian DeclTy *ParseObjCAtEndDeclaration(SourceLocation atLoc); 456e992af01d14e2e31037562c123af0a71ae1ed374Fariborz Jahanian DeclTy *ParseObjCAtAliasDeclaration(SourceLocation atLoc); 457ac00b7f4a933e60e2f0afd83092339160adc140cFariborz Jahanian DeclTy *ParseObjCPropertySynthesize(SourceLocation atLoc); 458ac00b7f4a933e60e2f0afd83092339160adc140cFariborz Jahanian DeclTy *ParseObjCPropertyDynamic(SourceLocation atLoc); 4595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4604b6c9051c6522894978c9ba6a819a659d102db36Fariborz Jahanian IdentifierInfo *ParseObjCSelector(SourceLocation &MethodLocation); 46134870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner // Definitions for Objective-c context sensitive keywords recognition. 46234870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner enum ObjCTypeQual { 46334870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner objc_in=0, objc_out, objc_inout, objc_oneway, objc_bycopy, objc_byref, 46434870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner objc_NumQuals 46534870da70fa42b0391b79627ebd0cfc6eb22213bChris Lattner }; 466a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek IdentifierInfo *ObjCTypeQuals[objc_NumQuals]; 4670196cab54007ff072ec2642da8911c6b7e8d3fb5Fariborz Jahanian 468335a2d4122e41343fe11a775889b8bec5b14be60Fariborz Jahanian bool isTokIdentifier_in() const; 469d0f97d1716a138a8d9e0df8e5af77334663723d8Fariborz Jahanian 470a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek TypeTy *ParseObjCTypeName(ObjCDeclSpec &DS); 471294494e1cce92043562b4680c613df7fd028c02eSteve Naroff void ParseObjCMethodRequirement(); 47225e077d59a8e8e43b65882b69610a3d5e2aaf53cFariborz Jahanian DeclTy *ParseObjCMethodPrototype(DeclTy *classOrCat, 473c81c8144a661a49d7b9dae8d2080dee2e43186ecChris Lattner tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword); 474bef1185418705e16012b3dd50cd7c260c8d6b79cSteve Naroff DeclTy *ParseObjCMethodDecl(SourceLocation mLoc, tok::TokenKind mType, 4751f7b6f88f18d7f6b10265acec5d41c4ed1897487Fariborz Jahanian DeclTy *classDecl, 47600933591a2795d09dd1acff12a2d21bce7cb12c5Fariborz Jahanian tok::ObjCKeywordKind MethodImplKind = tok::objc_not_keyword); 477a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void ParseObjCPropertyAttribute(ObjCDeclSpec &DS); 478294494e1cce92043562b4680c613df7fd028c02eSteve Naroff 47971c0a951d08dc7a2a057df8c15f22b36f6aa47c7Steve Naroff DeclTy *ParseObjCMethodDefinition(); 480bcfb06ac6da1aa3c74ac1ef7a49c2807522366e7Steve Naroff 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 4825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.5: Expressions. 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4842f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseExpression(); 4852f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseConstantExpression(); 4862f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl // Expr that doesn't include commas. 4872f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseAssignmentExpression(); 4882f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl 489d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseExpressionWithLeadingAt(SourceLocation AtLoc); 4905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 491d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseRHSOfBinaryExpression(OwningExprResult LHS, 492d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl unsigned MinPrec); 4932f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseCastExpression(bool isUnaryExpression); 4942f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParsePostfixExpressionSuffix(OwningExprResult LHS); 495d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseSizeofAlignofExpression(); 496d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseBuiltinPrimaryExpression(); 4970cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis 498a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl static const unsigned ExprListSize = 12; 499a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl typedef llvm::SmallVector<ExprTy*, ExprListSize> ExprListTy; 500a55e52c0802cae3b7c366a05c461d3d15074c1a3Sebastian Redl typedef llvm::SmallVector<SourceLocation, ExprListSize> CommaLocsTy; 5010cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis 5020cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis /// ParseExpressionList - Used for C/C++ (argument-)expression-list. 5030cd5b429fad6833dda23f0aced14a10907ac5539Argyrios Kyrtzidis bool ParseExpressionList(ExprListTy &Exprs, CommaLocsTy &CommaLocs); 504d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParenParseOption - Control what ParseParenExpression will parse. 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum ParenParseOption { 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SimpleExpr, // Only parse '(' expression ')' 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundStmt, // Also allow '(' compound-statement ')' 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundLiteral, // Also allow '(' type-name ')' '{' ... '}' 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CastExpr // Also allow '(' type-name ')' <anything> 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 512d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseParenExpression(ParenParseOption &ExprType, 513d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl TypeTy *&CastTy, 514d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl SourceLocation &RParenLoc); 515d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl 516d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseSimpleParenExpression() { // Parse SimpleExpr only. 5175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ParseSimpleParenExpression(RParenLoc); 5195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 520d8c4e15138e69a51754cc259c8a592cc47950c8eSebastian Redl OwningExprResult ParseSimpleParenExpression(SourceLocation &RParenLoc) { 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenParseOption Op = SimpleExpr; 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer TypeTy *CastTy; 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return ParseParenExpression(Op, CastTy, RParenLoc); 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 52515ff1110c96a26c9315142d407c1f29d86a5ad1fChris Lattner 52620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseStringLiteralExpression(); 527eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 528eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis //===--------------------------------------------------------------------===// 529eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis // C++ Expressions 53020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXIdExpression(); 5314bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis 5324bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis /// MaybeParseCXXScopeSpecifier - Parse global scope or nested-name-specifier. 5334bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis /// Returns true if a nested-name-specifier was parsed from the token stream. 5344bdd91c09fd59e0c154d759288beff300e31e1d0Argyrios Kyrtzidis bool MaybeParseCXXScopeSpecifier(CXXScopeSpec &SS); 5355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C++ 5.2p1: C++ Casts 53820df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXCasts(); 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 541c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl // C++ 5.2p1: C++ Type Identification 54220df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXTypeid(); 543c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl 544c42e1183846228a7fa5143ad76507d6d60f5c6f3Sebastian Redl //===--------------------------------------------------------------------===// 5454cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis // C++ 9.3.2: C++ 'this' pointer 54620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXThis(); 5474cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis 5484cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 54950dd289f45738ed22b7583d52ed2525b927042ffChris Lattner // C++ 15: C++ Throw Expression 55020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseThrowExpression(); 5510fe7bea6fca9737c6c145aaa4a2ad3abe595782aDouglas Gregor bool ParseExceptionSpecification(); 55250dd289f45738ed22b7583d52ed2525b927042ffChris Lattner 55350dd289f45738ed22b7583d52ed2525b927042ffChris Lattner //===--------------------------------------------------------------------===// 5545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C++ 2.13.5: C++ Boolean Literals 55520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXBoolLiteral(); 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 558987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis // C++ 5.2.3: Explicit type conversion (functional notation) 55920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXTypeConstructExpression(const DeclSpec &DS); 560987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 561987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// ParseCXXSimpleTypeSpecifier - [C++ 7.1.5.2] Simple type specifiers. 562987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// This should only be called when the current token is known to be part of 563987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis /// simple-type-specifier. 564987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis void ParseCXXSimpleTypeSpecifier(DeclSpec &DS); 565987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis 5662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor bool ParseCXXTypeSpecifierSeq(DeclSpec &DS); 5672f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor 568987a14bf5883ef6e5d07f1c83eb6d41a8212a78cArgyrios Kyrtzidis //===--------------------------------------------------------------------===// 5694c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl // C++ 5.3.4 and 5.3.5: C++ new and delete 57020df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXNewExpression(); 571cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl bool ParseExpressionListOrTypeId(ExprListTy &Exprs, Declarator &D); 5724c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl void ParseDirectNewDeclarator(Declarator &D); 57320df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseCXXDeleteExpression(); 5744c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl 5754c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl //===--------------------------------------------------------------------===// 57671b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis // C++ if/switch/while/for condition expression. 5772f7ece7c77eb17e24e8f0f4e1b7fb01aa5111f96Sebastian Redl OwningExprResult ParseCXXCondition(); 57871b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis 57971b914b999d9c4b6df11068fc5a3291ac4770492Argyrios Kyrtzidis //===--------------------------------------------------------------------===// 58012e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor // C++ types 58112e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor 58212e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor //===--------------------------------------------------------------------===// 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7.8: Initialization. 5840eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner 5850eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// ParseInitializer 5860eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// initializer: [C99 6.7.8] 5870eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// assignment-expression 5880eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner /// '{' ... 58920df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseInitializer() { 5900eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner if (Tok.isNot(tok::l_brace)) 59120df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl return ParseAssignmentExpression(); 5920eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner return ParseBraceInitializer(); 5930eec2b58678f71af6b5fcf4c439290c0d640546bChris Lattner } 59420df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseBraceInitializer(); 59520df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl OwningExprResult ParseInitializerWithPotentialDesignator( 59620df9b7ab9388b2a488c5b1293cd196b1e073b4eSebastian Redl InitListDesignations &D, unsigned InitNum); 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 599296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff // clang Expressions 600296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff 601296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff ExprResult ParseBlockLiteralExpression(); // ^{...} 602296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff 603296e8d5fdcf9946f51e866adc8d281379e51efe9Steve Naroff //===--------------------------------------------------------------------===// 6045508518a2702b00be3b15a26d772bde968972f54Anders Carlsson // Objective-C Expressions 60514dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 60614dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner bool isTokObjCMessageIdentifierReceiver() const { 60714dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner if (!Tok.is(tok::identifier)) 60814dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner return false; 60914dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 61014dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner if (Actions.isTypeName(*Tok.getIdentifierInfo(), CurScope)) 61114dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner return true; 61214dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 613662e8b5647adbb1bc9eeceece7b64600cfa87471Daniel Dunbar return Tok.getIdentifierInfo() == Ident_super; 61414dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner } 61514dd98a7952c9559e0d17fff8272bf3be67135afChris Lattner 616a642beb9f143130588dcf622f5f7020832b22707Steve Naroff ExprResult ParseObjCAtExpression(SourceLocation AtLocation); 617beaf299a2701c5559a4e5d76b0c40f805afb8e6aSteve Naroff ExprResult ParseObjCStringLiteral(SourceLocation AtLoc); 618674af9541256dc3ef803e3723027a8b028f1f7a2Chris Lattner ExprResult ParseObjCEncodeExpression(SourceLocation AtLoc); 6192a35fa9b5e0f9d9429c04adb2e1249b6fd425e7aFariborz Jahanian ExprResult ParseObjCSelectorExpression(SourceLocation AtLoc); 6202a35fa9b5e0f9d9429c04adb2e1249b6fd425e7aFariborz Jahanian ExprResult ParseObjCProtocolExpression(SourceLocation AtLoc); 6210ccb27ded12fd03eb6818a880f50901bb70254feFariborz Jahanian ExprResult ParseObjCMessageExpression(); 622699b66138ac307a32e238463e0eff513ff17d337Chris Lattner ExprResult ParseObjCMessageExpressionBody(SourceLocation LBracloc, 6235cb93b8bf009c4b0ae09b71ba85f54b2a7ea8022Steve Naroff SourceLocation NameLoc, 624699b66138ac307a32e238463e0eff513ff17d337Chris Lattner IdentifierInfo *ReceiverName, 625699b66138ac307a32e238463e0eff513ff17d337Chris Lattner ExprTy *ReceiverExpr); 626b93fb495660665c17c7f43172ae155d6a8c32ce8Chris Lattner ExprResult ParseAssignmentExprWithObjCMessageExprStart(SourceLocation LBracloc, 6275cb93b8bf009c4b0ae09b71ba85f54b2a7ea8022Steve Naroff SourceLocation NameLoc, 628b93fb495660665c17c7f43172ae155d6a8c32ce8Chris Lattner IdentifierInfo *ReceiverName, 629b93fb495660665c17c7f43172ae155d6a8c32ce8Chris Lattner ExprTy *ReceiverExpr); 63061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 6315508518a2702b00be3b15a26d772bde968972f54Anders Carlsson //===--------------------------------------------------------------------===// 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.8: Statements and Blocks. 63361364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl 63461364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseStatement() { 63561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl return ParseStatementOrDeclaration(true); 63661364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl } 63761364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseStatementOrDeclaration(bool OnlyStatement = false); 63861364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseLabeledStatement(); 63961364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseCaseStatement(); 64061364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseDefaultStatement(); 64161364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseCompoundStatement(bool isStmtExpr = false); 64261364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseCompoundStatementBody(bool isStmtExpr = false); 643ff871fb8f9c5906a4dee78afd81f60c3837e16cbChris Lattner bool ParseParenExprOrCondition(OwningExprResult &CondExp, 644ff871fb8f9c5906a4dee78afd81f60c3837e16cbChris Lattner bool OnlyAllowCondition = false); 64561364dddc33383e62cfe3b841dbc0f471280d95bSebastian Redl OwningStmtResult ParseIfStatement(); 6469a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseSwitchStatement(); 6479a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseWhileStatement(); 6489a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseDoStatement(); 6499a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseForStatement(); 6509a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseGotoStatement(); 6519a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseContinueStatement(); 6529a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseBreakStatement(); 6539a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseReturnStatement(); 6549a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult ParseAsmStatement(bool &msAsm); 6559a920342707e384473b464528d2fd286e8c70353Sebastian Redl OwningStmtResult FuzzyParseMicrosoftAsmStatement(); 65643bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCAtStatement(SourceLocation atLoc); 65743bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCTryStmt(SourceLocation atLoc); 65843bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCThrowStmt(SourceLocation atLoc); 65943bc2a0973ffe404fabba6f8280cd6bad2c69fcbSebastian Redl OwningStmtResult ParseObjCSynchronizedStmt(SourceLocation atLoc); 6608bd36fcb4427519f41197d88b9121e2bbe9e3fc3Anders Carlsson bool ParseAsmOperandsOpt(llvm::SmallVectorImpl<std::string> &Names, 661b235fc2cf37621c7fc6511bb2b8788c95f9fb9fcAnders Carlsson llvm::SmallVectorImpl<ExprTy*> &Constraints, 662b235fc2cf37621c7fc6511bb2b8788c95f9fb9fcAnders Carlsson llvm::SmallVectorImpl<ExprTy*> &Exprs); 663b235fc2cf37621c7fc6511bb2b8788c95f9fb9fcAnders Carlsson 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer //===--------------------------------------------------------------------===// 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // C99 6.7: Declarations. 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *ParseDeclaration(unsigned Context); 6698f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner DeclTy *ParseSimpleDeclaration(unsigned Context); 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *ParseInitDeclaratorListAfterFirstDeclarator(Declarator &D); 671f9ed3157c93495474003a5ec360039030fd42e9cFariborz Jahanian DeclTy *ParseFunctionStatementBody(DeclTy *Decl, 672f9ed3157c93495474003a5ec360039030fd42e9cFariborz Jahanian SourceLocation L, SourceLocation R); 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseDeclarationSpecifiers(DeclSpec &DS); 67412e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor bool MaybeParseTypeSpecifier(DeclSpec &DS, int &isInvalid, 67512e083c805c0f86be4f8e54b06e75b2c3dc1da64Douglas Gregor const char *&PrevSpec); 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseSpecifierQualifierList(DeclSpec &DS); 67719d74e1494fe399f0e2a94e9419c095f8214851bFariborz Jahanian 678a526c5c67e5a0473c340903ee542ce570119665fTed Kremenek void ParseObjCTypeQualifierList(ObjCDeclSpec &DS); 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseEnumSpecifier(DeclSpec &DS); 6815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseEnumBody(SourceLocation StartLoc, DeclTy *TagDecl); 6825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseStructUnionBody(SourceLocation StartLoc, unsigned TagType, 6835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DeclTy *TagDecl); 684e13594279a952537ac903325efff57e3edca79d9Chris Lattner void ParseStructDeclaration(DeclSpec &DS, 685e13594279a952537ac903325efff57e3edca79d9Chris Lattner llvm::SmallVectorImpl<FieldDeclarator> &Fields); 6864e6526b2de501f2bbc261fd8017c92c75bd8d8f7Steve Naroff 687eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis bool isDeclarationSpecifier(); 688eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis bool isTypeSpecifierQualifier(); 6895f8aa696619e32bf307232841fedb704ba733b4dSteve Naroff bool isTypeQualifier() const; 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6915404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isDeclarationStatement - Disambiguates between a declaration or an 6925404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// expression statement, when parsing function bodies. 6935404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns true for declaration, false for expression. 6945404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isDeclarationStatement() { 6955404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis if (getLang().CPlusPlus) 6965404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis return isCXXDeclarationStatement(); 6975404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis return isDeclarationSpecifier(); 6985404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis } 6995404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 700bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// isSimpleDeclaration - Disambiguates between a declaration or an 701bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// expression, mainly used for the C 'clause-1' or the C++ 702bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis // 'for-init-statement' part of a 'for' statement. 703bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis /// Returns true for declaration, false for expression. 704bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis bool isSimpleDeclaration() { 705bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis if (getLang().CPlusPlus) 706bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis return isCXXSimpleDeclaration(); 707bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis return isDeclarationSpecifier(); 708bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis } 709bbc70c019f7b7f9a256ee29dab5287ecc82c6553Argyrios Kyrtzidis 71078c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// isTypeIdInParens - Assumes that a '(' was parsed and now we want to know 71178c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// whether the parens contain an expression or a type-id. 71278c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// Returns true for a type-id and false for an expression. 71378c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis bool isTypeIdInParens() { 71478c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis if (getLang().CPlusPlus) 71578c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis return isCXXTypeIdInParens(); 71678c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis return isTypeSpecifierQualifier(); 71778c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis } 71878c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis 7195404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXDeclarationStatement - C++-specialized function that disambiguates 7205404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// between a declaration or an expression statement, when parsing function 7215404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// bodies. Returns true for declaration, false for expression. 7225404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isCXXDeclarationStatement(); 7235404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 7245404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXSimpleDeclaration - C++-specialized function that disambiguates 7255404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// between a simple-declaration or an expression-statement. 7265404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 7275404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 7285404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns false if the statement is disambiguated as expression. 7295404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis bool isCXXSimpleDeclaration(); 7305404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 7315404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// isCXXFunctionDeclarator - Disambiguates between a function declarator or 7325404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// a constructor-style initializer, when parsing declaration statements. 7335404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Returns true for function declarator and false for constructor-style 734e75d849d9141d8e47d05a91b7b5c04194854e47aArgyrios Kyrtzidis /// initializer. If 'warnIfAmbiguous' is true a warning will be emitted to 735259b0d91f2ff90d8daf39221fe133bf1596c5ffbArgyrios Kyrtzidis /// indicate that the parens were disambiguated as function declarator. 7365404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 7375404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 738e75d849d9141d8e47d05a91b7b5c04194854e47aArgyrios Kyrtzidis bool isCXXFunctionDeclarator(bool warnIfAmbiguous); 7395404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 740a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// isCXXConditionDeclaration - Disambiguates between a declaration or an 741a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// expression for a condition of a if/switch/while/for statement. 742a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 743a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 744a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis bool isCXXConditionDeclaration(); 745a8a4598b6f2a07339ab8a1248295a07d771a2b2aArgyrios Kyrtzidis 74678c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// isCXXTypeIdInParens - Assumes that a '(' was parsed and now we want to 74778c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// know whether the parens contain an expression or a type-id. 74878c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// Returns true for a type-id and false for an expression. 74978c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// If during the disambiguation process a parsing error is encountered, 75078c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis /// the function returns true to let the declaration parsing code handle it. 75178c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis bool isCXXTypeIdInParens(); 75278c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis 753b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// TPResult - Used as the result value for functions whose purpose is to 754b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// disambiguate C++ constructs by "tentatively parsing" them. 755b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// This is a class instead of a simple enum because the implicit enum-to-bool 756b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// conversions may cause subtle bugs. 757b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis class TPResult { 758b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis enum Result { 759b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_true, 760b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_false, 761b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_ambiguous, 762b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPR_error 763b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis }; 764b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis Result Res; 765b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult(Result result) : Res(result) {} 766b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis public: 767b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult True() { return TPR_true; } 768b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult False() { return TPR_false; } 769b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult Ambiguous() { return TPR_ambiguous; } 770b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis static TPResult Error() { return TPR_error; } 771b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis 772b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis bool operator==(const TPResult &RHS) const { return Res == RHS.Res; } 773b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis bool operator!=(const TPResult &RHS) const { return Res != RHS.Res; } 774b47e38683f288cd4a73098091d629df417377a6bArgyrios Kyrtzidis }; 775b47e38683f288cd4a73098091d629df417377a6bArgyrios Kyrtzidis 776b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// isCXXDeclarationSpecifier - Returns TPResult::True() if it is a 777b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// declaration specifier, TPResult::False() if it is not, 778b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// TPResult::Ambiguous() if it could be either a decl-specifier or a 779b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// function-style cast, and TPResult::Error() if a parsing error was 780b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis /// encountered. 7815404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis /// Doesn't consume tokens. 782b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult isCXXDeclarationSpecifier(); 7835404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 7845404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis // "Tentative parsing" functions, used for disambiguation. If a parsing error 785b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // is encountered they will return TPResult::Error(). 786b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // Returning TPResult::True()/False() indicates that the ambiguity was 787b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // resolved and tentative parsing may stop. TPResult::Ambiguous() indicates 788b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis // that more tentative parsing is necessary for disambiguation. 7895404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis // They all consume tokens, so backtracking should be used after calling them. 7905404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 791b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseDeclarationSpecifier(); 792b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseSimpleDeclaration(); 793b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseTypeofSpecifier(); 794b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseInitDeclaratorList(); 79578c8d80f19cb0bccd4f3d590e71a230e727cfab5Argyrios Kyrtzidis TPResult TryParseDeclarator(bool mayBeAbstract, bool mayHaveIdentifier=true); 796b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseParameterDeclarationClause(); 797b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseFunctionDeclarator(); 798b9f341916e484ff6ba2c2d28c8b2dd5fa12b0015Argyrios Kyrtzidis TPResult TryParseBracketDeclarator(); 7995404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 8005404a156be26de1c63ca9916187f970848bb4dbbArgyrios Kyrtzidis 801cee63fbf0e64ac526582312bf8cf33263fc5c16eSebastian Redl TypeTy *ParseTypeName(); 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AttributeList *ParseAttributes(); 803d1861fd633d5096a00777c918eb8575ea7162fe7Steve Naroff void ParseTypeofSpecifier(DeclSpec &DS); 804eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 805eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// DeclaratorScopeObj - RAII object used in Parser::ParseDirectDeclarator to 806eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// enter a new C++ declarator scope and exit it when the function is 807eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis /// finished. 808eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis class DeclaratorScopeObj { 809eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis Parser &P; 810751810234ffb45327f23c5f9fda0b944e480bd2bArgyrios Kyrtzidis CXXScopeSpec &SS; 811eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis public: 812eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis DeclaratorScopeObj(Parser &p, CXXScopeSpec &ss) : P(p), SS(ss) {} 813eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 814eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis void EnterDeclaratorScope() { 815eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (SS.isSet()) 816eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis P.Actions.ActOnCXXEnterDeclaratorScope(P.CurScope, SS); 817eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 818eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis 819eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis ~DeclaratorScopeObj() { 820eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis if (SS.isSet()) 821eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis P.Actions.ActOnCXXExitDeclaratorScope(SS); 822eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis } 823eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis }; 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// ParseDeclarator - Parse and verify a newly-initialized declarator. 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseDeclarator(Declarator &D); 8274c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl /// A function that parses a variant of direct-declarator. 8284c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl typedef void (Parser::*DirectDeclParseFunction)(Declarator&); 8294c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl void ParseDeclaratorInternal(Declarator &D, 8304c5d320a7581f4b80b151630c91cea5727fa9923Sebastian Redl DirectDeclParseFunction DirectDeclParser); 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseTypeQualifierListOpt(DeclSpec &DS); 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseDirectDeclarator(Declarator &D); 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseParenDeclarator(Declarator &D); 8347399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner void ParseFunctionDeclarator(SourceLocation LParenLoc, Declarator &D, 8357399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner AttributeList *AttrList = 0, 8367399ee0aa6ffaeab0a8f83408b1c5127fb2bf5b8Chris Lattner bool RequiresArg = false); 83766d28650752eeac0b02802a1d8cea425cb6b1c0fChris Lattner void ParseFunctionDeclaratorIdentifierList(SourceLocation LParenLoc, 83866d28650752eeac0b02802a1d8cea425cb6b1c0fChris Lattner Declarator &D); 8395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer void ParseBracketDeclarator(Declarator &D); 8408f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner 8418f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner //===--------------------------------------------------------------------===// 8428f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner // C++ 7: Declarations [dcl.dcl] 8438f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner 8448f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner DeclTy *ParseNamespace(unsigned Context); 845c6fdc34ac0183bfa03d65f317c78b7bdac52897eChris Lattner DeclTy *ParseLinkage(unsigned Context); 8468f08cb7d0b97786b17ef05e05caa55aad4d6bd39Chris Lattner 847e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor //===--------------------------------------------------------------------===// 848e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor // C++ 9: classes [class] and C structs/unions. 849eb83ecde1a822b1c38cd060a85a08c1ac9f82cf8Argyrios Kyrtzidis TypeTy *ParseClassName(const CXXScopeSpec *SS = 0); 850e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor void ParseClassSpecifier(DeclSpec &DS); 8514cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis void ParseCXXMemberSpecification(SourceLocation StartLoc, unsigned TagType, 8524cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis DeclTy *TagDecl); 8534cc18a4d5222e04bd568b1e3e4d86127dbbcdf3fArgyrios Kyrtzidis DeclTy *ParseCXXClassMemberDeclaration(AccessSpecifier AS); 8547ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor void ParseConstructorInitializer(DeclTy *ConstructorDecl); 8557ad8390f7992ab7f19b1460c5f0b9d96f165c4e9Douglas Gregor MemInitResult ParseMemInitializer(DeclTy *ConstructorDecl); 856e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor 857e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor //===--------------------------------------------------------------------===// 858e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor // C++ 10: Derived classes [class.derived] 859e37ac4ff1620ed2d7026f52baccbfa022d79ced1Douglas Gregor void ParseBaseClause(DeclTy *ClassDecl); 860f8268ae3196002bbab6adb830302e79b0f368f13Douglas Gregor BaseResult ParseBaseSpecifier(DeclTy *ClassDecl); 8611b7f89846f10681ce3cbe89ef5d60691d55bd918Douglas Gregor AccessSpecifier getAccessSpecifierIfPresent() const; 8621cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor 8631cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor //===--------------------------------------------------------------------===// 8641cd1b1e987f5e2f060d7972b13d83239b36d77d6Douglas Gregor // C++ 13.5: Overloaded operators [over.oper] 865e94ca9e4371c022329270436b3dd77adc4ddfa8fDouglas Gregor OverloadedOperatorKind TryParseOperatorFunctionId(); 8662f1bc5285ccd40f411af5f5993f013e27e74ab78Douglas Gregor TypeTy *ParseConversionFunctionId(); 867adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor 868adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor //===--------------------------------------------------------------------===// 869adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor // C++ 14: Templates [temp] 870adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor // C++ 14.1: Template Parameters [temp.param] 871adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor DeclTy *ParseTemplateDeclaration(unsigned Context); 872adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor bool ParseTemplateParameters(DeclTy* TempDecl); 873adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor bool ParseTemplateParameterList(DeclTy *TmpDecl); 874adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor DeclTy *ParseTemplateParameter(); 875adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor DeclTy *ParseTypeParameter(); 876adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor DeclTy *ParseTemplateTemplateParameter(); 877adcac8824a9cff13f1ef61a69e38c1041cba12eeDouglas Gregor DeclTy *ParseNonTypeTemplateParameter(); 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 8815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 883