1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_OBJECTS_API_CALLBACKS_H_
#define V8_OBJECTS_API_CALLBACKS_H_
#include "src/objects/struct.h"
#include "torque-generated/bit-fields-tq.h"
#include "torque-generated/class-definitions-tq.h"
// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
// An accessor must have a getter, but can have no setter.
//
// When setting a property, V8 searches accessors in prototypes.
// If an accessor was found and it does not have a setter,
// the request is ignored.
//
// If the accessor in the prototype has the READ_ONLY property attribute, then
// a new value is added to the derived object when the property is set.
// This shadows the accessor in the prototype.
class AccessorInfo : public Struct {
public:
DECL_ACCESSORS(name, Name)
DECL_INT_ACCESSORS(flags)
DECL_ACCESSORS(expected_receiver_type, Object)
// This directly points at a foreign C function to be used from the runtime.
DECL_ACCESSORS(getter, Object)
inline bool has_getter();
DECL_ACCESSORS(setter, Object)
inline bool has_setter();
// This either points at the same as above, or a trampoline in case we are
// running with the simulator. Use these entries from generated code.
DECL_ACCESSORS(js_getter, Object)
DECL_ACCESSORS(data, Object)
static Address redirect(Address address, AccessorComponent component);
Address redirected_getter() const;
// Dispatched behavior.
DECL_PRINTER(AccessorInfo)
DECL_BOOLEAN_ACCESSORS(all_can_read)
DECL_BOOLEAN_ACCESSORS(all_can_write)
DECL_BOOLEAN_ACCESSORS(is_special_data_property)
DECL_BOOLEAN_ACCESSORS(replace_on_access)
DECL_BOOLEAN_ACCESSORS(is_sloppy)
inline SideEffectType getter_side_effect_type() const;
inline void set_getter_side_effect_type(SideEffectType type);
inline SideEffectType setter_side_effect_type() const;
inline void set_setter_side_effect_type(SideEffectType type);
// The property attributes used when an API object template is instantiated
// for the first time. Changing of this value afterwards does not affect
// the actual attributes of a property.
inline PropertyAttributes initial_property_attributes() const;
inline void set_initial_property_attributes(PropertyAttributes attributes);
// Checks whether the given receiver is compatible with this accessor.
static bool IsCompatibleReceiverMap(Handle<AccessorInfo> info,
Handle<Map> map);
inline bool IsCompatibleReceiver(Object receiver);
DECL_CAST(AccessorInfo)
// Dispatched behavior.
DECL_VERIFIER(AccessorInfo)
// Append all descriptors to the array that are not already there.
// Return number added.
static int AppendUnique(Isolate* isolate, Handle<Object> descriptors,
Handle<FixedArray> array, int valid_descriptors);
// Layout description.
DEFINE_FIELD_OFFSET_CONSTANTS(HeapObject::kHeaderSize,
TORQUE_GENERATED_ACCESSOR_INFO_FIELDS)
private:
inline bool HasExpectedReceiverType();
// Bit positions in |flags|.
DEFINE_TORQUE_GENERATED_ACCESSOR_INFO_FLAGS()
OBJECT_CONSTRUCTORS(AccessorInfo, Struct);
};
class AccessCheckInfo
: public TorqueGeneratedAccessCheckInfo<AccessCheckInfo, Struct> {
public:
// Dispatched behavior.
DECL_PRINTER(AccessCheckInfo)
static AccessCheckInfo Get(Isolate* isolate, Handle<JSObject> receiver);
TQ_OBJECT_CONSTRUCTORS(AccessCheckInfo)
};
class InterceptorInfo
: public TorqueGeneratedInterceptorInfo<InterceptorInfo, Struct> {
public:
DECL_BOOLEAN_ACCESSORS(can_intercept_symbols)
DECL_BOOLEAN_ACCESSORS(all_can_read)
DECL_BOOLEAN_ACCESSORS(non_masking)
DECL_BOOLEAN_ACCESSORS(is_named)
DECL_BOOLEAN_ACCESSORS(has_no_side_effect)
// Dispatched behavior.
DECL_PRINTER(InterceptorInfo)
static const int kCanInterceptSymbolsBit = 0;
static const int kAllCanReadBit = 1;
static const int kNonMasking = 2;
static const int kNamed = 3;
static const int kHasNoSideEffect = 4;
TQ_OBJECT_CONSTRUCTORS(InterceptorInfo)
};
class CallHandlerInfo
: public TorqueGeneratedCallHandlerInfo<CallHandlerInfo, Struct> {
public:
inline bool IsSideEffectFreeCallHandlerInfo() const;
inline bool IsSideEffectCallHandlerInfo() const;
inline void SetNextCallHasNoSideEffect();
// Returns whether or not the next call can be side effect free.
// Calling this will change the state back to having a side effect.
inline bool NextCallHasNoSideEffect();
// Dispatched behavior.
DECL_PRINTER(CallHandlerInfo)
DECL_VERIFIER(CallHandlerInfo)
Address redirected_callback() const;
TQ_OBJECT_CONSTRUCTORS(CallHandlerInfo)
};
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
#endif // V8_OBJECTS_API_CALLBACKS_H_
|