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
|
/* -*- 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_EnvironmentObject_inl_h
#define vm_EnvironmentObject_inl_h
#include "vm/EnvironmentObject.h"
#include "vm/JSObject-inl.h"
namespace js {
inline LexicalEnvironmentObject& NearestEnclosingExtensibleLexicalEnvironment(
JSObject* env) {
MOZ_ASSERT(env);
while (!IsExtensibleLexicalEnvironment(env)) {
env = env->enclosingEnvironment();
MOZ_ASSERT(env);
}
return env->as<LexicalEnvironmentObject>();
}
// Returns the innermost "qualified var object" on the environment chain.
// See the JSObject::isQualifiedVarObj comment for more info.
inline JSObject& GetVariablesObject(JSObject* envChain) {
while (!envChain->isQualifiedVarObj()) {
envChain = envChain->enclosingEnvironment();
}
MOZ_ASSERT(envChain);
return *envChain;
}
inline const Value& EnvironmentObject::aliasedBinding(
EnvironmentCoordinate ec) {
MOZ_ASSERT(!IsExtensibleLexicalEnvironment(this));
MOZ_ASSERT(nonExtensibleIsFixedSlot(ec) ==
NativeObject::isFixedSlot(ec.slot()));
return getSlot(ec.slot());
}
inline void EnvironmentObject::setAliasedBinding(JSContext* cx, uint32_t slot,
const Value& v) {
setSlot(slot, v);
}
inline void EnvironmentObject::setAliasedBinding(JSContext* cx,
EnvironmentCoordinate ec,
const Value& v) {
MOZ_ASSERT(!IsExtensibleLexicalEnvironment(this));
MOZ_ASSERT(nonExtensibleIsFixedSlot(ec) ==
NativeObject::isFixedSlot(ec.slot()));
setAliasedBinding(cx, ec.slot(), v);
}
inline void EnvironmentObject::setAliasedBinding(JSContext* cx,
const BindingIter& bi,
const Value& v) {
MOZ_ASSERT(bi.location().kind() == BindingLocation::Kind::Environment);
setAliasedBinding(cx, bi.location().slot(), v);
}
inline void CallObject::setAliasedFormalFromArguments(const Value& argsValue,
const Value& v) {
setSlot(ArgumentsObject::SlotFromMagicScopeSlotValue(argsValue), v);
}
} /* namespace js */
inline JSObject* JSObject::enclosingEnvironment() const {
if (is<js::EnvironmentObject>()) {
return &as<js::EnvironmentObject>().enclosingEnvironment();
}
if (is<js::DebugEnvironmentProxy>()) {
return &as<js::DebugEnvironmentProxy>().enclosingEnvironment();
}
if (is<js::GlobalObject>()) {
return nullptr;
}
MOZ_ASSERT_IF(is<JSFunction>(), as<JSFunction>().isInterpreted());
return &nonCCWGlobal();
}
#endif /* vm_EnvironmentObject_inl_h */
|
