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/common/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  OperatorProperties(const OperatorProperties&) = delete;
21  OperatorProperties& operator=(const OperatorProperties&) = delete;
22
23  static bool HasContextInput(const Operator* op);
24  static int GetContextInputCount(const Operator* op) {
25    return HasContextInput(op) ? 1 : 0;
26  }
27
28  static bool NeedsExactContext(const Operator* op);
29
30  static bool HasFrameStateInput(const Operator* op);
31  static int GetFrameStateInputCount(const Operator* op) {
32    return HasFrameStateInput(op) ? 1 : 0;
33  }
34
35  static int GetTotalInputCount(const Operator* op);
36
37  static bool IsBasicBlockBegin(const Operator* op);
38};
39
40}  // namespace compiler
41}  // namespace internal
42}  // namespace v8
43
44#endif  // V8_COMPILER_OPERATOR_PROPERTIES_H_
45