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_PROMOTE_INITIALIZERS_TO_CONST_VAR_H_ 16 #define SRC_TRANSFORM_PROMOTE_INITIALIZERS_TO_CONST_VAR_H_ 17 18 #include "src/transform/transform.h" 19 20 namespace tint { 21 namespace transform { 22 23 /// A transform that hoists the array and structure initializers to a constant 24 /// variable, declared just before the statement of usage. See 25 /// crbug.com/tint/406 for more details. 26 class PromoteInitializersToConstVar 27 : public Castable<PromoteInitializersToConstVar, Transform> { 28 public: 29 /// Constructor 30 PromoteInitializersToConstVar(); 31 32 /// Destructor 33 ~PromoteInitializersToConstVar() override; 34 35 protected: 36 /// Runs the transform using the CloneContext built for transforming a 37 /// program. Run() is responsible for calling Clone() on the CloneContext. 38 /// @param ctx the CloneContext primed with the input program and 39 /// ProgramBuilder 40 /// @param inputs optional extra transform-specific input data 41 /// @param outputs optional extra transform-specific output data 42 void Run(CloneContext& ctx, const DataMap& inputs, DataMap& outputs) override; 43 }; 44 45 } // namespace transform 46 } // namespace tint 47 48 #endif // SRC_TRANSFORM_PROMOTE_INITIALIZERS_TO_CONST_VAR_H_ 49