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