V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
property.h
1 // Copyright 2014 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_PROPERTY_H_
6 #define V8_PROPERTY_H_
7 
8 #include <iosfwd>
9 
10 #include "src/globals.h"
11 #include "src/handles.h"
12 #include "src/maybe-handles.h"
13 #include "src/objects.h"
14 #include "src/objects/name.h"
15 #include "src/property-details.h"
16 
17 namespace v8 {
18 namespace internal {
19 
20 // Abstraction for elements in instance-descriptor arrays.
21 //
22 // Each descriptor has a key, property attributes, property type,
23 // property index (in the actual instance-descriptor array) and
24 // optionally a piece of data.
25 class Descriptor final {
26  public:
27  Descriptor();
28 
29  Handle<Name> GetKey() const { return key_; }
30  MaybeObjectHandle GetValue() const { return value_; }
31  PropertyDetails GetDetails() const { return details_; }
32 
33  void SetSortedKeyIndex(int index) { details_ = details_.set_pointer(index); }
34 
35  static Descriptor DataField(Isolate* isolate, Handle<Name> key,
36  int field_index, PropertyAttributes attributes,
37  Representation representation);
38 
39  static Descriptor DataField(Handle<Name> key, int field_index,
40  PropertyAttributes attributes,
41  PropertyConstness constness,
42  Representation representation,
43  const MaybeObjectHandle& wrapped_field_type);
44 
45  static Descriptor DataConstant(Handle<Name> key, Handle<Object> value,
46  PropertyAttributes attributes);
47 
48  static Descriptor DataConstant(Isolate* isolate, Handle<Name> key,
49  int field_index, Handle<Object> value,
50  PropertyAttributes attributes);
51 
52  static Descriptor AccessorConstant(Handle<Name> key, Handle<Object> foreign,
53  PropertyAttributes attributes);
54 
55  private:
56  Handle<Name> key_;
57  MaybeObjectHandle value_;
58  PropertyDetails details_;
59 
60  protected:
61  Descriptor(Handle<Name> key, const MaybeObjectHandle& value,
62  PropertyDetails details);
63 
64  Descriptor(Handle<Name> key, const MaybeObjectHandle& value,
65  PropertyKind kind, PropertyAttributes attributes,
66  PropertyLocation location, PropertyConstness constness,
67  Representation representation, int field_index);
68 
69  friend class MapUpdater;
70 };
71 
72 } // namespace internal
73 } // namespace v8
74 
75 #endif // V8_PROPERTY_H_
Definition: libplatform.h:13