text: // Copyright (c) 2017 The Khronos Group Inc.
  // Copyright (c) 2017 Valve Corporation
  // Copyright (c) 2017 LunarG Inc.
  //
  // 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 LIBSPIRV_OPT_INLINE_OPAQUE_PASS_H_
  #define LIBSPIRV_OPT_INLINE_OPAQUE_PASS_H_
  
  #include <algorithm>
  #include <list>
  #include <memory>
  #include <vector>
  #include <unordered_map>
  
  #include "def_use_manager.h"
  #include "module.h"
  #include "inline_pass.h"
  
  namespace spvtools {
  namespace opt {
  
  // See optimizer.hpp for documentation.
  class InlineOpaquePass : public InlinePass {
  
   public:
    InlineOpaquePass();
    Status Process(ir::Module*) override;
  
    const char* name() const override { return "inline-opaque"; }
  
   private:
    // Return true if |typeId| is or contains opaque type
    bool IsOpaqueType(uint32_t typeId);
  
    // Return true if function call |callInst| has opaque argument or return type
    bool HasOpaqueArgsOrReturn(const ir::Instruction* callInst);
  
    // Inline all function calls in |func| that have opaque params or return
    // type. Inline similarly all code that is inlined into func. Return true
    // if func is modified.
    bool InlineOpaque(ir::Function* func);
  
    void Initialize(ir::Module* module);
    Pass::Status ProcessImpl();
  };
  
  }  // namespace opt
  }  // namespace spvtools
  
  #endif  // LIBSPIRV_OPT_INLINE_OPAQUE_PASS_H_
  