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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* 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 proxy_ScriptedProxyHandler_h
#define proxy_ScriptedProxyHandler_h
#include "js/Proxy.h"
namespace js {
/* Derived class for all scripted proxy handlers. */
class ScriptedProxyHandler : public BaseProxyHandler
{
public:
constexpr ScriptedProxyHandler()
: BaseProxyHandler(&family)
{ }
/* Standard internal methods. */
virtual bool getOwnPropertyDescriptor(JSContext* cx, HandleObject proxy, HandleId id,
MutableHandle<PropertyDescriptor> desc) const override;
virtual bool defineProperty(JSContext* cx, HandleObject proxy, HandleId id,
Handle<PropertyDescriptor> desc,
ObjectOpResult& result) const override;
virtual bool ownPropertyKeys(JSContext* cx, HandleObject proxy,
AutoIdVector& props) const override;
virtual bool delete_(JSContext* cx, HandleObject proxy, HandleId id,
ObjectOpResult& result) const override;
virtual bool getPrototype(JSContext* cx, HandleObject proxy,
MutableHandleObject protop) const override;
virtual bool setPrototype(JSContext* cx, HandleObject proxy, HandleObject proto,
ObjectOpResult& result) const override;
/* Non-standard, but needed to correctly implement OrdinaryGetPrototypeOf. */
virtual bool getPrototypeIfOrdinary(JSContext* cx, HandleObject proxy, bool* isOrdinary,
MutableHandleObject protop) const override;
/* Non-standard, but needed to handle revoked proxies. */
virtual bool setImmutablePrototype(JSContext* cx, HandleObject proxy,
bool* succeeded) const override;
virtual bool preventExtensions(JSContext* cx, HandleObject proxy,
ObjectOpResult& result) const override;
virtual bool isExtensible(JSContext* cx, HandleObject proxy, bool* extensible) const override;
virtual bool has(JSContext* cx, HandleObject proxy, HandleId id, bool* bp) const override;
virtual bool get(JSContext* cx, HandleObject proxy, HandleValue receiver, HandleId id,
MutableHandleValue vp) const override;
virtual bool set(JSContext* cx, HandleObject proxy, HandleId id, HandleValue v,
HandleValue receiver, ObjectOpResult& result) const override;
virtual bool call(JSContext* cx, HandleObject proxy, const CallArgs& args) const override;
virtual bool construct(JSContext* cx, HandleObject proxy, const CallArgs& args) const override;
/* SpiderMonkey extensions. */
virtual bool hasOwn(JSContext* cx, HandleObject proxy, HandleId id, bool* bp) const override {
return BaseProxyHandler::hasOwn(cx, proxy, id, bp);
}
// A scripted proxy should not be treated as generic in most contexts.
virtual bool nativeCall(JSContext* cx, IsAcceptableThis test, NativeImpl impl,
const CallArgs& args) const override;
virtual bool hasInstance(JSContext* cx, HandleObject proxy, MutableHandleValue v,
bool* bp) const override;
virtual bool getBuiltinClass(JSContext* cx, HandleObject proxy, ESClass* cls) const override;
virtual bool isArray(JSContext* cx, HandleObject proxy,
JS::IsArrayAnswer* answer) const override;
virtual const char* className(JSContext* cx, HandleObject proxy) const override;
virtual JSString* fun_toString(JSContext* cx, HandleObject proxy,
unsigned indent) const override;
virtual bool regexp_toShared(JSContext* cx, HandleObject proxy,
RegExpGuard* g) const override;
virtual bool boxedValue_unbox(JSContext* cx, HandleObject proxy,
MutableHandleValue vp) const override;
virtual bool isCallable(JSObject* obj) const override;
virtual bool isConstructor(JSObject* obj) const override;
virtual bool isScripted() const override { return true; }
static const char family;
static const ScriptedProxyHandler singleton;
// The "proxy extra" slot index in which the handler is stored. Revocable proxies need to set
// this at revocation time.
static const int HANDLER_EXTRA = 0;
static const int IS_CALLCONSTRUCT_EXTRA = 1;
// Bitmasks for the "call/construct" slot
static const int IS_CALLABLE = 1 << 0;
static const int IS_CONSTRUCTOR = 1 << 1;
// The "function extended" slot index in which the revocation object is stored. Per spec, this
// is to be cleared during the first revocation.
static const int REVOKE_SLOT = 0;
static JSObject* handlerObject(const JSObject* proxy);
};
bool
proxy(JSContext* cx, unsigned argc, Value* vp);
bool
proxy_revocable(JSContext* cx, unsigned argc, Value* vp);
} /* namespace js */
#endif /* proxy_ScriptedProxyHandler_h */
|
