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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef vm_Caches_inl_h
#define vm_Caches_inl_h
#include "vm/Caches.h"
#include <iterator>
#include "gc/Allocator.h"
#include "gc/GCProbes.h"
#include "vm/Probes.h"
#include "vm/Realm.h"
#include "vm/JSObject-inl.h"
namespace js {
inline bool NewObjectCache::lookupProto(const JSClass* clasp, JSObject* proto,
gc::AllocKind kind,
EntryIndex* pentry) {
MOZ_ASSERT(!proto->is<GlobalObject>());
return lookup(clasp, proto, kind, pentry);
}
inline bool NewObjectCache::lookupGlobal(const JSClass* clasp,
GlobalObject* global,
gc::AllocKind kind,
EntryIndex* pentry) {
return lookup(clasp, global, kind, pentry);
}
inline void NewObjectCache::fillGlobal(EntryIndex entry, const JSClass* clasp,
GlobalObject* global, gc::AllocKind kind,
NativeObject* obj) {
// MOZ_ASSERT(global == obj->getGlobal());
return fill(entry, clasp, global, kind, obj);
}
inline NativeObject* NewObjectCache::newObjectFromHit(JSContext* cx,
EntryIndex entryIndex,
gc::InitialHeap heap) {
MOZ_ASSERT(unsigned(entryIndex) < std::size(entries));
Entry* entry = &entries[entryIndex];
NativeObject* templateObj =
reinterpret_cast<NativeObject*>(&entry->templateObject);
ObjectGroup* group = templateObj->group();
// If we did the lookup based on the proto we might have a group/object from a
// different (same-compartment) realm, so we have to do a realm check.
if (group->realm() != cx->realm()) {
return nullptr;
}
if (cx->runtime()->gc.upcomingZealousGC()) {
return nullptr;
}
NativeObject* obj = static_cast<NativeObject*>(AllocateObject<NoGC>(
cx, entry->kind, /* nDynamicSlots = */ 0, heap, group->clasp()));
if (!obj) {
return nullptr;
}
copyCachedToObject(obj, templateObj, entry->kind);
if (group->clasp()->shouldDelayMetadataBuilder()) {
cx->realm()->setObjectPendingMetadata(cx, obj);
} else {
obj = static_cast<NativeObject*>(SetNewObjectMetadata(cx, obj));
}
probes::CreateObject(cx, obj);
gc::gcprobes::CreateObject(obj);
return obj;
}
} /* namespace js */
#endif /* vm_Caches_inl_h */
|
