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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
// 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_TEMPLATES_INL_H_
#define V8_OBJECTS_TEMPLATES_INL_H_
#include "src/objects/templates.h"
#include "src/heap/heap-write-barrier-inl.h"
#include "src/objects/oddball.h"
#include "src/objects/shared-function-info-inl.h"
// Has to be the last include (doesn't have include guards):
#include "src/objects/object-macros.h"
namespace v8 {
namespace internal {
OBJECT_CONSTRUCTORS_IMPL(TemplateInfo, Struct)
OBJECT_CONSTRUCTORS_IMPL(FunctionTemplateInfo, TemplateInfo)
OBJECT_CONSTRUCTORS_IMPL(ObjectTemplateInfo, TemplateInfo)
OBJECT_CONSTRUCTORS_IMPL(FunctionTemplateRareData, Struct)
NEVER_READ_ONLY_SPACE_IMPL(TemplateInfo)
ACCESSORS(TemplateInfo, tag, Object, kTagOffset)
ACCESSORS(TemplateInfo, serial_number, Object, kSerialNumberOffset)
SMI_ACCESSORS(TemplateInfo, number_of_properties, kNumberOfPropertiesOffset)
ACCESSORS(TemplateInfo, property_list, Object, kPropertyListOffset)
ACCESSORS(TemplateInfo, property_accessors, Object, kPropertyAccessorsOffset)
ACCESSORS(FunctionTemplateInfo, call_code, Object, kCallCodeOffset)
ACCESSORS(FunctionTemplateInfo, class_name, Object, kClassNameOffset)
ACCESSORS(FunctionTemplateInfo, signature, Object, kSignatureOffset)
ACCESSORS(FunctionTemplateInfo, shared_function_info, Object,
kSharedFunctionInfoOffset)
ACCESSORS(FunctionTemplateInfo, rare_data, HeapObject,
kFunctionTemplateRareDataOffset)
ACCESSORS(FunctionTemplateInfo, cached_property_name, Object,
kCachedPropertyNameOffset)
SMI_ACCESSORS(FunctionTemplateInfo, length, kLengthOffset)
BOOL_ACCESSORS(FunctionTemplateInfo, flag, undetectable, kUndetectableBit)
BOOL_ACCESSORS(FunctionTemplateInfo, flag, needs_access_check,
kNeedsAccessCheckBit)
BOOL_ACCESSORS(FunctionTemplateInfo, flag, read_only_prototype,
kReadOnlyPrototypeBit)
BOOL_ACCESSORS(FunctionTemplateInfo, flag, remove_prototype,
kRemovePrototypeBit)
BOOL_ACCESSORS(FunctionTemplateInfo, flag, do_not_cache, kDoNotCacheBit)
BOOL_ACCESSORS(FunctionTemplateInfo, flag, accept_any_receiver,
kAcceptAnyReceiver)
SMI_ACCESSORS(FunctionTemplateInfo, flag, kFlagOffset)
// static
FunctionTemplateRareData FunctionTemplateInfo::EnsureFunctionTemplateRareData(
Isolate* isolate, Handle<FunctionTemplateInfo> function_template_info) {
HeapObject extra = function_template_info->rare_data(isolate);
if (extra.IsUndefined(isolate)) {
return AllocateFunctionTemplateRareData(isolate, function_template_info);
} else {
return FunctionTemplateRareData::cast(extra);
}
}
#define RARE_ACCESSORS(Name, CamelName, Type) \
DEF_GETTER(FunctionTemplateInfo, Get##CamelName, Type) { \
HeapObject extra = rare_data(isolate); \
HeapObject undefined = GetReadOnlyRoots(isolate).undefined_value(); \
return extra == undefined ? undefined \
: FunctionTemplateRareData::cast(extra).Name(); \
} \
inline void FunctionTemplateInfo::Set##CamelName( \
Isolate* isolate, Handle<FunctionTemplateInfo> function_template_info, \
Handle<Type> Name) { \
FunctionTemplateRareData rare_data = \
EnsureFunctionTemplateRareData(isolate, function_template_info); \
rare_data.set_##Name(*Name); \
}
RARE_ACCESSORS(prototype_template, PrototypeTemplate, Object)
RARE_ACCESSORS(prototype_provider_template, PrototypeProviderTemplate, Object)
RARE_ACCESSORS(parent_template, ParentTemplate, Object)
RARE_ACCESSORS(named_property_handler, NamedPropertyHandler, Object)
RARE_ACCESSORS(indexed_property_handler, IndexedPropertyHandler, Object)
RARE_ACCESSORS(instance_template, InstanceTemplate, Object)
RARE_ACCESSORS(instance_call_handler, InstanceCallHandler, Object)
RARE_ACCESSORS(access_check_info, AccessCheckInfo, Object)
#undef RARE_ACCESSORS
ACCESSORS(FunctionTemplateRareData, prototype_template, Object,
kPrototypeTemplateOffset)
ACCESSORS(FunctionTemplateRareData, prototype_provider_template, Object,
kPrototypeProviderTemplateOffset)
ACCESSORS(FunctionTemplateRareData, parent_template, Object,
kParentTemplateOffset)
ACCESSORS(FunctionTemplateRareData, named_property_handler, Object,
kNamedPropertyHandlerOffset)
ACCESSORS(FunctionTemplateRareData, indexed_property_handler, Object,
kIndexedPropertyHandlerOffset)
ACCESSORS(FunctionTemplateRareData, instance_template, Object,
kInstanceTemplateOffset)
ACCESSORS(FunctionTemplateRareData, instance_call_handler, Object,
kInstanceCallHandlerOffset)
ACCESSORS(FunctionTemplateRareData, access_check_info, Object,
kAccessCheckInfoOffset)
ACCESSORS(ObjectTemplateInfo, constructor, Object, kConstructorOffset)
ACCESSORS(ObjectTemplateInfo, data, Object, kDataOffset)
CAST_ACCESSOR(TemplateInfo)
CAST_ACCESSOR(FunctionTemplateInfo)
CAST_ACCESSOR(FunctionTemplateRareData)
CAST_ACCESSOR(ObjectTemplateInfo)
bool FunctionTemplateInfo::instantiated() {
return shared_function_info().IsSharedFunctionInfo();
}
bool FunctionTemplateInfo::BreakAtEntry() {
Object maybe_shared = shared_function_info();
if (maybe_shared.IsSharedFunctionInfo()) {
SharedFunctionInfo shared = SharedFunctionInfo::cast(maybe_shared);
return shared.BreakAtEntry();
}
return false;
}
FunctionTemplateInfo FunctionTemplateInfo::GetParent(Isolate* isolate) {
Object parent = GetParentTemplate();
return parent.IsUndefined(isolate) ? FunctionTemplateInfo()
: FunctionTemplateInfo::cast(parent);
}
ObjectTemplateInfo ObjectTemplateInfo::GetParent(Isolate* isolate) {
Object maybe_ctor = constructor();
if (maybe_ctor.IsUndefined(isolate)) return ObjectTemplateInfo();
FunctionTemplateInfo constructor = FunctionTemplateInfo::cast(maybe_ctor);
while (true) {
constructor = constructor.GetParent(isolate);
if (constructor.is_null()) return ObjectTemplateInfo();
Object maybe_obj = constructor.GetInstanceTemplate();
if (!maybe_obj.IsUndefined(isolate)) {
return ObjectTemplateInfo::cast(maybe_obj);
}
}
return ObjectTemplateInfo();
}
int ObjectTemplateInfo::embedder_field_count() const {
Object value = data();
DCHECK(value.IsSmi());
return EmbedderFieldCount::decode(Smi::ToInt(value));
}
void ObjectTemplateInfo::set_embedder_field_count(int count) {
DCHECK_LE(count, JSObject::kMaxEmbedderFields);
return set_data(
Smi::FromInt(EmbedderFieldCount::update(Smi::ToInt(data()), count)));
}
bool ObjectTemplateInfo::immutable_proto() const {
Object value = data();
DCHECK(value.IsSmi());
return IsImmutablePrototype::decode(Smi::ToInt(value));
}
void ObjectTemplateInfo::set_immutable_proto(bool immutable) {
return set_data(Smi::FromInt(
IsImmutablePrototype::update(Smi::ToInt(data()), immutable)));
}
bool FunctionTemplateInfo::IsTemplateFor(JSObject object) {
return IsTemplateFor(object.map());
}
} // namespace internal
} // namespace v8
#include "src/objects/object-macros-undef.h"
#endif // V8_OBJECTS_TEMPLATES_INL_H_
|
