operator-properties.h revision 014dc512cdd3e367bee49a713fdc5ed92584a3e5 
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
10namespace v8 {
11namespace internal {
12namespace compiler {
13
14// Forward declarations.
15class Operator;
16
17
18class 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  static int GetFrameStateInputCount(const Operator* op);
25
26  static int GetTotalInputCount(const Operator* op);
27
28  static bool IsBasicBlockBegin(const Operator* op);
29
30 private:
31  DISALLOW_COPY_AND_ASSIGN(OperatorProperties);
32};
33
34}  // namespace compiler
35}  // namespace internal
36}  // namespace v8
37
38#endif  // V8_COMPILER_OPERATOR_PROPERTIES_H_
39