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 11 namespace v8 { 12 namespace internal { 13 namespace compiler { 14 15 // Forward declarations. 16 class Operator; 17 18 class V8_EXPORT_PRIVATE OperatorProperties final { 19 public: 20 static bool HasContextInput(const Operator* op); GetContextInputCount(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); GetFrameStateInputCount(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