mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2024-11-26 21:50:53 +00:00
96 lines
3.3 KiB
Objective-C
96 lines
3.3 KiB
Objective-C
/*
|
|
* Copyright (C) 2013 Apple Inc. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
|
|
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
|
|
* THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef JSManagedValue_h
|
|
#define JSManagedValue_h
|
|
|
|
#import <JavaScriptCore/JSBase.h>
|
|
#import <JavaScriptCore/WebKitAvailability.h>
|
|
|
|
#if JSC_OBJC_API_ENABLED
|
|
|
|
#if defined(DARLING) && __i386__
|
|
#import "JSWeakValue.h"
|
|
#import "JSLock.h"
|
|
#endif
|
|
|
|
@class JSValue;
|
|
@class JSContext;
|
|
|
|
/*!
|
|
@interface
|
|
@discussion JSManagedValue represents a "conditionally retained" JSValue.
|
|
"Conditionally retained" means that as long as the JSManagedValue's
|
|
JSValue is reachable through the JavaScript object graph,
|
|
or through the Objective-C object graph reported to the JSVirtualMachine using
|
|
addManagedReference:withOwner:, the corresponding JSValue will
|
|
be retained. However, if neither graph reaches the JSManagedValue, the
|
|
corresponding JSValue will be released and set to nil.
|
|
|
|
The primary use for a JSManagedValue is to store a JSValue in an Objective-C
|
|
or Swift object that is exported to JavaScript. It is incorrect to store a JSValue
|
|
in an object that is exported to JavaScript, since doing so creates a retain cycle.
|
|
*/
|
|
NS_CLASS_AVAILABLE(10_9, 7_0)
|
|
#if defined(DARLING) && __i386__
|
|
@interface JSManagedValue : NSObject {
|
|
JSC::Weak<JSC::JSGlobalObject> m_globalObject;
|
|
RefPtr<JSC::JSLock> m_lock;
|
|
JSC::JSWeakValue m_weakValue;
|
|
NSMapTable *m_owners;
|
|
}
|
|
#else
|
|
@interface JSManagedValue : NSObject
|
|
#endif
|
|
|
|
/*!
|
|
@method
|
|
@abstract Create a JSManagedValue from a JSValue.
|
|
@result The new JSManagedValue.
|
|
*/
|
|
+ (JSManagedValue *)managedValueWithValue:(JSValue *)value;
|
|
+ (JSManagedValue *)managedValueWithValue:(JSValue *)value andOwner:(id)owner JSC_API_AVAILABLE(macos(10.10), ios(8.0));
|
|
|
|
/*!
|
|
@method
|
|
@abstract Create a JSManagedValue.
|
|
@result The new JSManagedValue.
|
|
*/
|
|
- (instancetype)initWithValue:(JSValue *)value;
|
|
|
|
/*!
|
|
@property
|
|
@abstract Get the JSValue from the JSManagedValue.
|
|
@result The corresponding JSValue for this JSManagedValue or
|
|
nil if the JSValue has been collected.
|
|
*/
|
|
@property (readonly, strong) JSValue *value;
|
|
|
|
@end
|
|
|
|
#endif // JSC_OBJC_API_ENABLED
|
|
|
|
#endif // JSManagedValue_h
|