| // Copyright 2022 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_TINT_TRANSFORM_PROMOTE_SIDE_EFFECTS_TO_DECL_H_ |
| #define SRC_TINT_TRANSFORM_PROMOTE_SIDE_EFFECTS_TO_DECL_H_ |
| |
| #include "src/tint/transform/transform.h" |
| |
| namespace tint::transform { |
| |
| /// A transform that hoists expressions with side-effects to variable |
| /// declarations before the statement of usage with the goal of ensuring |
| /// left-to-right order of evaluation, while respecting short-circuit |
| /// evaluation. |
| class PromoteSideEffectsToDecl final : public Castable<PromoteSideEffectsToDecl, Transform> { |
| public: |
| /// Constructor |
| PromoteSideEffectsToDecl(); |
| |
| /// Destructor |
| ~PromoteSideEffectsToDecl() override; |
| |
| protected: |
| /// Runs the transform on `program`, returning the transformation result. |
| /// @param program the source program to transform |
| /// @param data optional extra transform-specific data |
| /// @returns the transformation result |
| Output Run(const Program* program, const DataMap& data = {}) const override; |
| }; |
| |
| } // namespace tint::transform |
| |
| #endif // SRC_TINT_TRANSFORM_PROMOTE_SIDE_EFFECTS_TO_DECL_H_ |