text: // Copyright (c) 2019 Google LLC
  //
  // 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 SOURCE_FUZZ_TRANSFORMATION_ADD_BOOLEAN_CONSTANT_H_
  #define SOURCE_FUZZ_TRANSFORMATION_ADD_BOOLEAN_CONSTANT_H_
  
  #include "source/fuzz/protobufs/spirvfuzz_protobufs.h"
  #include "source/fuzz/transformation.h"
  #include "source/fuzz/transformation_context.h"
  #include "source/opt/ir_context.h"
  
  namespace spvtools {
  namespace fuzz {
  
  class TransformationAddConstantBoolean : public Transformation {
   public:
    explicit TransformationAddConstantBoolean(
        const protobufs::TransformationAddConstantBoolean& message);
  
    TransformationAddConstantBoolean(uint32_t fresh_id, bool is_true,
                                     bool is_irrelevant);
  
    // - |message_.fresh_id| must not be used by the module.
    // - The module must already contain OpTypeBool.
    bool IsApplicable(
        opt::IRContext* ir_context,
        const TransformationContext& transformation_context) const override;
  
    // - Adds OpConstantTrue (OpConstantFalse) to the module with id
    //   |message_.fresh_id| if |message_.is_true| holds (does not hold).
    // - Also, creates an IdIsIrrelevant fact about |fresh_id| if |is_irrelevant|
    //   is true.
    void Apply(opt::IRContext* ir_context,
               TransformationContext* transformation_context) const override;
  
    std::unordered_set<uint32_t> GetFreshIds() const override;
  
    protobufs::Transformation ToMessage() const override;
  
   private:
    protobufs::TransformationAddConstantBoolean message_;
  };
  
  }  // namespace fuzz
  }  // namespace spvtools
  
  #endif  // SOURCE_FUZZ_TRANSFORMATION_ADD_BOOLEAN_CONSTANT_H_
  