V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
vector-slot-pair.h
1 // Copyright 2017 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_VECTOR_SLOT_PAIR_H_
6 #define V8_VECTOR_SLOT_PAIR_H_
7 
8 #include "src/globals.h"
9 #include "src/handles.h"
10 #include "src/utils.h"
11 
12 namespace v8 {
13 namespace internal {
14 
15 class FeedbackVector;
16 
17 // Defines a pair of {FeedbackVector} and {FeedbackSlot}, which
18 // is used to access the type feedback for a certain {Node}.
19 class V8_EXPORT_PRIVATE VectorSlotPair {
20  public:
23  InlineCacheState ic_state)
24  : vector_(vector), slot_(slot), ic_state_(ic_state) {}
25 
26  bool IsValid() const { return !vector_.is_null() && !slot_.IsInvalid(); }
27 
28  Handle<FeedbackVector> vector() const { return vector_; }
29  FeedbackSlot slot() const { return slot_; }
30  InlineCacheState ic_state() const { return ic_state_; }
31 
32  int index() const;
33 
34  private:
35  Handle<FeedbackVector> vector_;
36  FeedbackSlot slot_;
37  InlineCacheState ic_state_ = UNINITIALIZED;
38 };
39 
40 bool operator==(VectorSlotPair const&, VectorSlotPair const&);
41 bool operator!=(VectorSlotPair const&, VectorSlotPair const&);
42 
43 V8_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,
44  VectorSlotPair const&);
45 
46 size_t hash_value(VectorSlotPair const&);
47 
48 } // namespace internal
49 } // namespace v8
50 
51 #endif // V8_VECTOR_SLOT_PAIR_H_
Definition: libplatform.h:13