1 | // Copyright 2017 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_DIRECTIVEHANDLERBASE_H_ |
16 | #define COMPILER_PREPROCESSOR_DIRECTIVEHANDLERBASE_H_ |
17 | |
18 | #include <string> |
19 | |
20 | namespace pp |
21 | { |
22 | |
23 | struct SourceLocation; |
24 | |
25 | // Base class for handling directives. |
26 | // Preprocessor uses this class to notify the clients about certain |
27 | // preprocessor directives. Derived classes are responsible for |
28 | // handling them in an appropriate manner. |
29 | class DirectiveHandler |
30 | { |
31 | public: |
32 | virtual ~DirectiveHandler(); |
33 | |
34 | virtual void handleError(const SourceLocation &loc, const std::string &msg) = 0; |
35 | |
36 | // Handle pragma of form: #pragma name[(value)] |
37 | virtual void handlePragma(const SourceLocation &loc, |
38 | const std::string &name, |
39 | const std::string &value, |
40 | bool stdgl) = 0; |
41 | |
42 | virtual void handleExtension(const SourceLocation &loc, |
43 | const std::string &name, |
44 | const std::string &behavior) = 0; |
45 | |
46 | virtual void handleVersion(const SourceLocation &loc, int version) = 0; |
47 | }; |
48 | |
49 | } // namespace pp |
50 | |
51 | #endif // COMPILER_PREPROCESSOR_DIRECTIVEHANDLERBASE_H_ |
52 | |