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116 lines
4.5 KiB
Objective-C
116 lines
4.5 KiB
Objective-C
/**
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NSKVOSwizzling.m
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Copyright (C) 2024 Free Software Foundation, Inc.
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Written by: Hugo Melder <hugo@algoriddim.com>
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Date: June 2024
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Based on WinObjC KVO tests by Microsoft Corporation.
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This file is part of GNUStep-base
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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If you are interested in a warranty or support for this source code,
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contact Scott Christley <scottc@net-community.com> for more information.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110 USA.
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*/
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/**
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Copyright (c) Microsoft. All rights reserved.
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This code is licensed under the MIT License (MIT).
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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/* This Key Value Observing Implementation is tied to libobjc2 */
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#import <Foundation/Foundation.h>
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#import "GSPThread.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define NS_COLLECTION_THROW_ILLEGAL_KVO(keyPath) \
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do \
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{ \
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[NSException \
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raise:NSInvalidArgumentException \
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format:@"-[%s %s] is not supported. Key path: %@", \
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object_getClassName(self), sel_getName(_cmd), keyPath]; \
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} while (false)
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@class _NSKVOKeypathObserver;
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@interface _NSKVOKeyObserver : NSObject
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- (instancetype)initWithObject:(id)object
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keypathObserver:(_NSKVOKeypathObserver *)keypathObserver
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key:(NSString *)key
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restOfKeypath:(NSString *)restOfKeypath
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affectedObservers:(NSArray *)affectedObservers;
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@property (nonatomic, retain) _NSKVOKeypathObserver *keypathObserver;
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@property (nonatomic, retain) _NSKVOKeyObserver *restOfKeypathObserver;
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@property (nonatomic, retain) NSArray *dependentObservers;
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@property (nonatomic, assign) id object;
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@property (nonatomic, copy) NSString *key;
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@property (nonatomic, copy) NSString *restOfKeypath;
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@property (nonatomic, retain) NSArray *affectedObservers;
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@property (nonatomic, assign) BOOL root;
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@property (nonatomic, readonly) BOOL isRemoved;
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@end
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@interface _NSKVOKeypathObserver : NSObject
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- (instancetype)initWithObject:(id)object
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observer:(id)observer
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keyPath:(NSString *)keypath
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options:(NSKeyValueObservingOptions)options
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context:(void *)context;
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@property (nonatomic, assign) id object;
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@property (nonatomic, assign) id observer;
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@property (nonatomic, copy) NSString *keypath;
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@property (nonatomic, assign) NSKeyValueObservingOptions options;
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@property (nonatomic, assign) void *context;
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@property (atomic, retain) NSMutableDictionary *pendingChange;
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@end
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@interface _NSKVOObservationInfo : NSObject
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{
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NSMutableDictionary<NSString *, NSMutableArray<_NSKVOKeyObserver *> *>
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*_keyObserverMap;
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NSInteger _dependencyDepth;
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NSMutableSet<NSString *> *_existingDependentKeys;
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gs_mutex_t _lock;
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}
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- (instancetype)init;
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- (NSArray *)observersForKey:(NSString *)key;
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- (void)addObserver:(_NSKVOKeyObserver *)observer;
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@end
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// From NSKVOSwizzling
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void
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_NSKVOEnsureKeyWillNotify(id object, NSString *key);
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#ifdef __cplusplus
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}
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#endif
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