operator-properties.h

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// Copyright 2013 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef V8_COMPILER_OPERATOR_PROPERTIES_H_
#define V8_COMPILER_OPERATOR_PROPERTIES_H_
 
#include "src/base/macros.h"
 
namespace v8 {
namespace internal {
namespace compiler {
 
// Forward declarations.
class Operator;
 
class V8_EXPORT_PRIVATE OperatorProperties final {
 public:
  OperatorProperties(const OperatorProperties&) = delete;
  OperatorProperties& operator=(const OperatorProperties&) = delete;
 
  static bool HasContextInput(const Operator* op);
  static int GetContextInputCount(const Operator* op) {
    return HasContextInput(op) ? 1 : 0;
  }
 
  static bool NeedsExactContext(const Operator* op);
 
  static bool HasFrameStateInput(const Operator* op);
  static int GetFrameStateInputCount(const Operator* op) {
    return HasFrameStateInput(op) ? 1 : 0;
  }
 
  static int GetTotalInputCount(const Operator* op);
 
  static bool IsBasicBlockBegin(const Operator* op);
};
 
}  // namespace compiler
}  // namespace internal
}  // namespace v8
 
#endif  // V8_COMPILER_OPERATOR_PROPERTIES_H_