| // Copyright 2020 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef SRC_TRANSFORM_TRANSFORMER_H_ |
| #define SRC_TRANSFORM_TRANSFORMER_H_ |
| |
| #include <string> |
| |
| #include "src/ast/module.h" |
| #include "src/context.h" |
| |
| namespace tint { |
| namespace transform { |
| |
| /// Interface class for the transformers |
| class Transformer { |
| public: |
| /// Constructor |
| /// @param ctx the Tint context |
| /// @param mod the module to transform |
| Transformer(Context* ctx, ast::Module* mod); |
| virtual ~Transformer(); |
| |
| /// @returns true if the transformation was successful |
| virtual bool Run() = 0; |
| |
| /// @returns error messages |
| const std::string& error() { return error_; } |
| |
| protected: |
| /// The context |
| Context* ctx_ = nullptr; |
| /// The module |
| ast::Module* mod_ = nullptr; |
| /// Any error messages, or blank if no error |
| std::string error_; |
| }; |
| |
| } // namespace transform |
| } // namespace tint |
| |
| #endif // SRC_TRANSFORM_TRANSFORMER_H_ |