V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
property-descriptor-object.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_OBJECTS_PROPERTY_DESCRIPTOR_OBJECT_H_
6 #define V8_OBJECTS_PROPERTY_DESCRIPTOR_OBJECT_H_
7 
8 #include "src/objects.h"
9 #include "src/objects/fixed-array.h"
10 
11 // Has to be the last include (doesn't have include guards):
12 #include "src/objects/object-macros.h"
13 
14 namespace v8 {
15 namespace internal {
16 
18  public:
19 #define FLAGS_BIT_FIELDS(V, _) \
20  V(IsEnumerableBit, bool, 1, _) \
21  V(HasEnumerableBit, bool, 1, _) \
22  V(IsConfigurableBit, bool, 1, _) \
23  V(HasConfigurableBit, bool, 1, _) \
24  V(IsWritableBit, bool, 1, _) \
25  V(HasWritableBit, bool, 1, _) \
26  V(HasValueBit, bool, 1, _) \
27  V(HasGetBit, bool, 1, _) \
28  V(HasSetBit, bool, 1, _)
29 
30  DEFINE_BIT_FIELDS(FLAGS_BIT_FIELDS)
31 #undef FLAGS_BIT_FIELDS
32 
33  enum { kFlagsIndex, kValueIndex, kGetIndex, kSetIndex, kLength };
34 
35  DECL_CAST2(PropertyDescriptorObject)
36 
37  static const int kRegularAccessorPropertyBits =
38  HasEnumerableBit::kMask | HasConfigurableBit::kMask | HasGetBit::kMask |
39  HasSetBit::kMask;
40 
41  static const int kRegularDataPropertyBits =
42  HasEnumerableBit::kMask | HasConfigurableBit::kMask |
43  HasWritableBit::kMask | HasValueBit::kMask;
44 
45  static const int kHasMask = HasEnumerableBit::kMask |
46  HasConfigurableBit::kMask |
47  HasWritableBit::kMask | HasValueBit::kMask |
48  HasGetBit::kMask | HasSetBit::kMask;
49 
50  static const int kValueOffset =
51  FixedArray::OffsetOfElementAt(PropertyDescriptorObject::kValueIndex);
52  static const int kFlagsOffset =
53  FixedArray::OffsetOfElementAt(PropertyDescriptorObject::kFlagsIndex);
54  static const int kGetOffset =
55  FixedArray::OffsetOfElementAt(PropertyDescriptorObject::kGetIndex);
56  static const int kSetOffset =
57  FixedArray::OffsetOfElementAt(PropertyDescriptorObject::kSetIndex);
58 
59  OBJECT_CONSTRUCTORS(PropertyDescriptorObject, FixedArray)
60 };
61 
62 } // namespace internal
63 } // namespace v8
64 
65 #include "src/objects/object-macros-undef.h"
66 
67 #endif // V8_OBJECTS_PROPERTY_DESCRIPTOR_OBJECT_H_
Definition: libplatform.h:13