1// Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15#ifndef COMPILER_PREPROCESSOR_EXPRESSION_PARSER_H_ 16#define COMPILER_PREPROCESSOR_EXPRESSION_PARSER_H_ 17 18#include "DiagnosticsBase.h" 19 20namespace pp 21{ 22 23class Lexer; 24struct Token; 25 26class ExpressionParser 27{ 28public: 29 struct ErrorSettings 30 { 31 Diagnostics::ID unexpectedIdentifier; 32 bool integerLiteralsMustFit32BitSignedRange; 33 }; 34 35 ExpressionParser(Lexer *lexer, Diagnostics *diagnostics); 36 37 bool parse(Token *token, 38 int *result, 39 bool parsePresetToken, 40 const ErrorSettings &errorSettings, 41 bool *valid); 42 43private: 44 Lexer *mLexer; 45 Diagnostics *mDiagnostics; 46}; 47 48} // namespace pp 49#endif // COMPILER_PREPROCESSOR_EXPRESSION_PARSER_H_ 50