1 // Copyright 2021 The Tint Authors. 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 SRC_TRANSFORM_FOLD_CONSTANTS_H_ 16 #define SRC_TRANSFORM_FOLD_CONSTANTS_H_ 17 18 #include "src/transform/transform.h" 19 20 namespace tint { 21 namespace transform { 22 23 /// FoldConstants transforms the AST by folding constant expressions 24 class FoldConstants : public Castable<FoldConstants, Transform> { 25 public: 26 /// Constructor 27 FoldConstants(); 28 29 /// Destructor 30 ~FoldConstants() override; 31 32 protected: 33 /// Runs the transform using the CloneContext built for transforming a 34 /// program. Run() is responsible for calling Clone() on the CloneContext. 35 /// @param ctx the CloneContext primed with the input program and 36 /// ProgramBuilder 37 /// @param inputs optional extra transform-specific input data 38 /// @param outputs optional extra transform-specific output data 39 void Run(CloneContext& ctx, const DataMap& inputs, DataMap& outputs) override; 40 }; 41 42 } // namespace transform 43 } // namespace tint 44 45 #endif // SRC_TRANSFORM_FOLD_CONSTANTS_H_ 46