1// Copyright 2013 the V8 project authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef V8_COMPILER_OPERATOR_PROPERTIES_H_ 6#define V8_COMPILER_OPERATOR_PROPERTIES_H_ 7 8#include "src/base/macros.h" 9#include "src/globals.h" 10 11namespace v8 { 12namespace internal { 13namespace compiler { 14 15// Forward declarations. 16class Operator; 17 18class V8_EXPORT_PRIVATE OperatorProperties final { 19 public: 20 static bool HasContextInput(const Operator* op); 21 static int GetContextInputCount(const Operator* op) { 22 return HasContextInput(op) ? 1 : 0; 23 } 24 25 static bool HasFrameStateInput(const Operator* op); 26 static int GetFrameStateInputCount(const Operator* op) { 27 return HasFrameStateInput(op) ? 1 : 0; 28 } 29 30 static int GetTotalInputCount(const Operator* op); 31 32 static bool IsBasicBlockBegin(const Operator* op); 33 34 private: 35 DISALLOW_COPY_AND_ASSIGN(OperatorProperties); 36}; 37 38} // namespace compiler 39} // namespace internal 40} // namespace v8 41 42#endif // V8_COMPILER_OPERATOR_PROPERTIES_H_ 43