michael@0: //
michael@0: // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: #ifndef COMPILER_PREPROCESSOR_DIRECTIVE_PARSER_H_
michael@0: #define COMPILER_PREPROCESSOR_DIRECTIVE_PARSER_H_
michael@0: 
michael@0: #include "Lexer.h"
michael@0: #include "Macro.h"
michael@0: #include "pp_utils.h"
michael@0: #include "SourceLocation.h"
michael@0: 
michael@0: namespace pp
michael@0: {
michael@0: 
michael@0: class Diagnostics;
michael@0: class DirectiveHandler;
michael@0: class Tokenizer;
michael@0: 
michael@0: class DirectiveParser : public Lexer
michael@0: {
michael@0:   public:
michael@0:     DirectiveParser(Tokenizer* tokenizer,
michael@0:                     MacroSet* macroSet,
michael@0:                     Diagnostics* diagnostics,
michael@0:                     DirectiveHandler* directiveHandler);
michael@0: 
michael@0:     virtual void lex(Token* token);
michael@0: 
michael@0:   private:
michael@0:     PP_DISALLOW_COPY_AND_ASSIGN(DirectiveParser);
michael@0: 
michael@0:     void parseDirective(Token* token);
michael@0:     void parseDefine(Token* token);
michael@0:     void parseUndef(Token* token);
michael@0:     void parseIf(Token* token);
michael@0:     void parseIfdef(Token* token);
michael@0:     void parseIfndef(Token* token);
michael@0:     void parseElse(Token* token);
michael@0:     void parseElif(Token* token);
michael@0:     void parseEndif(Token* token);
michael@0:     void parseError(Token* token);
michael@0:     void parsePragma(Token* token);
michael@0:     void parseExtension(Token* token);
michael@0:     void parseVersion(Token* token);
michael@0:     void parseLine(Token* token);
michael@0: 
michael@0:     bool skipping() const;
michael@0:     void parseConditionalIf(Token* token);
michael@0:     int parseExpressionIf(Token* token);
michael@0:     int parseExpressionIfdef(Token* token);
michael@0: 
michael@0:     struct ConditionalBlock
michael@0:     {
michael@0:         std::string type;
michael@0:         SourceLocation location;
michael@0:         bool skipBlock;
michael@0:         bool skipGroup;
michael@0:         bool foundValidGroup;
michael@0:         bool foundElseGroup;
michael@0: 
michael@0:         ConditionalBlock() :
michael@0:             skipBlock(false),
michael@0:             skipGroup(false),
michael@0:             foundValidGroup(false),
michael@0:             foundElseGroup(false)
michael@0:         {
michael@0:         }
michael@0:     };
michael@0:     bool mPastFirstStatement;
michael@0:     std::vector<ConditionalBlock> mConditionalStack;
michael@0:     Tokenizer* mTokenizer;
michael@0:     MacroSet* mMacroSet;
michael@0:     Diagnostics* mDiagnostics;
michael@0:     DirectiveHandler* mDirectiveHandler;
michael@0: };
michael@0: 
michael@0: }  // namespace pp
michael@0: #endif  // COMPILER_PREPROCESSOR_DIRECTIVE_PARSER_H_
michael@0: