Ultralight C API 1.3.0
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JSObjectRefPrivate.h
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1/*
2 * Copyright (C) 2010-2019 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef JSObjectRefPrivate_h
27#define JSObjectRefPrivate_h
28
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
35/*!
36 @function
37 @abstract Sets a private property on an object. This private property cannot be accessed from within JavaScript.
38 @param ctx The execution context to use.
39 @param object The JSObject whose private property you want to set.
40 @param propertyName A JSString containing the property's name.
41 @param value A JSValue to use as the property's value. This may be NULL.
42 @result true if object can store private data, otherwise false.
43 @discussion This API allows you to store JS values directly an object in a way that will be ensure that they are kept alive without exposing them to JavaScript code and without introducing the reference cycles that may occur when using JSValueProtect.
44
45 The default object class does not allocate storage for private data. Only objects created with a non-NULL JSClass can store private properties.
46 */
48
49/*!
50 @function
51 @abstract Gets a private property from an object.
52 @param ctx The execution context to use.
53 @param object The JSObject whose private property you want to get.
54 @param propertyName A JSString containing the property's name.
55 @result The property's value if object has the property, otherwise NULL.
56 */
58
59/*!
60 @function
61 @abstract Deletes a private property from an object.
62 @param ctx The execution context to use.
63 @param object The JSObject whose private property you want to delete.
64 @param propertyName A JSString containing the property's name.
65 @result true if object can store private data, otherwise false.
66 @discussion The default object class does not allocate storage for private data. Only objects created with a non-NULL JSClass can store private data.
67 */
69
71
73
74#ifdef __cplusplus
75}
76#endif
77
78#endif // JSObjectRefPrivate_h
struct OpaqueJSString * JSStringRef
Definition JSBase.h:49
struct OpaqueJSContext * JSGlobalContextRef
Definition JSBase.h:46
struct OpaqueJSValue * JSObjectRef
Definition JSBase.h:69
const struct OpaqueJSValue * JSValueRef
Definition JSBase.h:66
#define JS_EXPORT
Definition JSBase.h:93
const struct OpaqueJSContext * JSContextRef
Definition JSBase.h:43
bool JSObjectDeletePrivateProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName)
Deletes a private property from an object.
JSObjectRef JSObjectGetProxyTarget(JSObjectRef)
JSValueRef JSObjectGetPrivateProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName)
Gets a private property from an object.
bool JSObjectSetPrivateProperty(JSContextRef ctx, JSObjectRef object, JSStringRef propertyName, JSValueRef value)
Sets a private property on an object. This private property cannot be accessed from within JavaScript...
JSGlobalContextRef JSObjectGetGlobalContext(JSObjectRef object)