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This commit is contained in:
allhaileris
272
Telegram/ThirdParty/dispatch/os/object.h
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272
Telegram/ThirdParty/dispatch/os/object.h
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/*
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* Copyright (c) 2011-2014 Apple Inc. All rights reserved.
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*
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* @APPLE_APACHE_LICENSE_HEADER_START@
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @APPLE_APACHE_LICENSE_HEADER_END@
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*/
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#ifndef __OS_OBJECT__
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#define __OS_OBJECT__
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#ifdef __APPLE__
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#include <Availability.h>
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#include <os/availability.h>
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#include <TargetConditionals.h>
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#include <os/base.h>
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#elif defined(_WIN32)
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#include <os/generic_win_base.h>
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#elif defined(__unix__)
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#include <os/generic_unix_base.h>
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#endif
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/*!
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* @header
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*
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* @preprocinfo
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* By default, libSystem objects such as GCD and XPC objects are declared as
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* Objective-C types when building with an Objective-C compiler. This allows
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* them to participate in ARC, in RR management by the Blocks runtime and in
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* leaks checking by the static analyzer, and enables them to be added to Cocoa
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* collections.
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*
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* NOTE: this requires explicit cancellation of dispatch sources and xpc
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* connections whose handler blocks capture the source/connection object,
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* resp. ensuring that such captures do not form retain cycles (e.g. by
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* declaring the source as __weak).
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*
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* To opt-out of this default behavior, add -DOS_OBJECT_USE_OBJC=0 to your
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* compiler flags.
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*
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* This mode requires a platform with the modern Objective-C runtime, the
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* Objective-C GC compiler option to be disabled, and at least a Mac OS X 10.8
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* or iOS 6.0 deployment target.
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*/
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#ifndef OS_OBJECT_HAVE_OBJC_SUPPORT
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#if !defined(__OBJC__) || defined(__OBJC_GC__)
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# define OS_OBJECT_HAVE_OBJC_SUPPORT 0
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#elif !defined(TARGET_OS_MAC) || !TARGET_OS_MAC
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# define OS_OBJECT_HAVE_OBJC_SUPPORT 0
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#elif TARGET_OS_IOS && __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_6_0
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# define OS_OBJECT_HAVE_OBJC_SUPPORT 0
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#elif TARGET_OS_MAC && !TARGET_OS_IPHONE
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# if __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_8
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# define OS_OBJECT_HAVE_OBJC_SUPPORT 0
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# elif defined(__i386__) && __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_12
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# define OS_OBJECT_HAVE_OBJC_SUPPORT 0
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# else
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# define OS_OBJECT_HAVE_OBJC_SUPPORT 1
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# endif
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#else
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# define OS_OBJECT_HAVE_OBJC_SUPPORT 1
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#endif
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#endif // OS_OBJECT_HAVE_OBJC_SUPPORT
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#if OS_OBJECT_HAVE_OBJC_SUPPORT
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#if defined(__swift__) && __swift__ && !OS_OBJECT_USE_OBJC
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#define OS_OBJECT_USE_OBJC 1
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#endif
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#ifndef OS_OBJECT_USE_OBJC
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#define OS_OBJECT_USE_OBJC 1
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#endif
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#elif defined(OS_OBJECT_USE_OBJC) && OS_OBJECT_USE_OBJC
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/* Unsupported platform for OS_OBJECT_USE_OBJC=1 */
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#undef OS_OBJECT_USE_OBJC
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#define OS_OBJECT_USE_OBJC 0
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#else
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#define OS_OBJECT_USE_OBJC 0
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#endif
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#ifndef OS_OBJECT_SWIFT3
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#if defined(SWIFT_SDK_OVERLAY_DISPATCH_EPOCH) && \
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SWIFT_SDK_OVERLAY_DISPATCH_EPOCH >= 2
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#define OS_OBJECT_SWIFT3 1
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#else
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#define OS_OBJECT_SWIFT3 0
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#endif // SWIFT_SDK_OVERLAY_DISPATCH_EPOCH >= 2
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#endif // OS_OBJECT_SWIFT3
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#if OS_OBJECT_USE_OBJC
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#import <objc/NSObject.h>
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#if __has_attribute(objc_independent_class)
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#define OS_OBJC_INDEPENDENT_CLASS __attribute__((objc_independent_class))
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#endif // __has_attribute(objc_independent_class)
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#ifndef OS_OBJC_INDEPENDENT_CLASS
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#define OS_OBJC_INDEPENDENT_CLASS
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#endif
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#define OS_OBJECT_CLASS(name) OS_##name
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#define OS_OBJECT_DECL_PROTOCOL(name, ...) \
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@protocol OS_OBJECT_CLASS(name) __VA_ARGS__ \
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@end
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#define OS_OBJECT_CLASS_IMPLEMENTS_PROTOCOL_IMPL(name, proto) \
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@interface name () <proto> \
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@end
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#define OS_OBJECT_CLASS_IMPLEMENTS_PROTOCOL(name, proto) \
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OS_OBJECT_CLASS_IMPLEMENTS_PROTOCOL_IMPL( \
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OS_OBJECT_CLASS(name), OS_OBJECT_CLASS(proto))
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#define OS_OBJECT_DECL_IMPL(name, ...) \
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OS_OBJECT_DECL_PROTOCOL(name, __VA_ARGS__) \
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typedef NSObject<OS_OBJECT_CLASS(name)> \
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* OS_OBJC_INDEPENDENT_CLASS name##_t
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#define OS_OBJECT_DECL_BASE(name, ...) \
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@interface OS_OBJECT_CLASS(name) : __VA_ARGS__ \
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- (instancetype)init OS_SWIFT_UNAVAILABLE("Unavailable in Swift"); \
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@end
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#define OS_OBJECT_DECL_IMPL_CLASS(name, ...) \
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OS_OBJECT_DECL_BASE(name, ## __VA_ARGS__) \
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typedef OS_OBJECT_CLASS(name) \
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* OS_OBJC_INDEPENDENT_CLASS name##_t
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#define OS_OBJECT_DECL(name, ...) \
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OS_OBJECT_DECL_IMPL(name, <NSObject>)
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#define OS_OBJECT_DECL_SUBCLASS(name, super) \
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OS_OBJECT_DECL_IMPL(name, <OS_OBJECT_CLASS(super)>)
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#if __has_attribute(ns_returns_retained)
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#define OS_OBJECT_RETURNS_RETAINED __attribute__((__ns_returns_retained__))
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#else
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#define OS_OBJECT_RETURNS_RETAINED
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#endif
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#if __has_attribute(ns_consumed)
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#define OS_OBJECT_CONSUMED __attribute__((__ns_consumed__))
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#else
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#define OS_OBJECT_CONSUMED
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#endif
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#if __has_feature(objc_arc)
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#define OS_OBJECT_BRIDGE __bridge
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#define OS_WARN_RESULT_NEEDS_RELEASE
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#else
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#define OS_OBJECT_BRIDGE
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#define OS_WARN_RESULT_NEEDS_RELEASE OS_WARN_RESULT
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#endif
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#if __has_attribute(objc_runtime_visible) && \
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((defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && \
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__MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_12) || \
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(defined(__IPHONE_OS_VERSION_MIN_REQUIRED) && \
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!defined(__TV_OS_VERSION_MIN_REQUIRED) && \
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!defined(__WATCH_OS_VERSION_MIN_REQUIRED) && \
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__IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_10_0) || \
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(defined(__TV_OS_VERSION_MIN_REQUIRED) && \
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__TV_OS_VERSION_MIN_REQUIRED < __TVOS_10_0) || \
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(defined(__WATCH_OS_VERSION_MIN_REQUIRED) && \
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__WATCH_OS_VERSION_MIN_REQUIRED < __WATCHOS_3_0))
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/*
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* To provide backward deployment of ObjC objects in Swift on pre-10.12
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* SDKs, OS_object classes can be marked as OS_OBJECT_OBJC_RUNTIME_VISIBLE.
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* When compiling with a deployment target earlier than OS X 10.12 (iOS 10.0,
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* tvOS 10.0, watchOS 3.0) the Swift compiler will only refer to this type at
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* runtime (using the ObjC runtime).
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*/
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#define OS_OBJECT_OBJC_RUNTIME_VISIBLE __attribute__((objc_runtime_visible))
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#else
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#define OS_OBJECT_OBJC_RUNTIME_VISIBLE
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#endif
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#ifndef OS_OBJECT_USE_OBJC_RETAIN_RELEASE
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#if defined(__clang_analyzer__)
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#define OS_OBJECT_USE_OBJC_RETAIN_RELEASE 1
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#elif __has_feature(objc_arc) && !OS_OBJECT_SWIFT3
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#define OS_OBJECT_USE_OBJC_RETAIN_RELEASE 1
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#else
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#define OS_OBJECT_USE_OBJC_RETAIN_RELEASE 0
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#endif
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#endif
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#if OS_OBJECT_SWIFT3
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#define OS_OBJECT_DECL_SWIFT(name) \
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OS_EXPORT OS_OBJECT_OBJC_RUNTIME_VISIBLE \
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OS_OBJECT_DECL_IMPL_CLASS(name, NSObject)
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#define OS_OBJECT_DECL_SUBCLASS_SWIFT(name, super) \
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OS_EXPORT OS_OBJECT_OBJC_RUNTIME_VISIBLE \
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OS_OBJECT_DECL_IMPL_CLASS(name, OS_OBJECT_CLASS(super))
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OS_EXPORT OS_OBJECT_OBJC_RUNTIME_VISIBLE
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OS_OBJECT_DECL_BASE(object, NSObject);
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#endif // OS_OBJECT_SWIFT3
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#else
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/*! @parseOnly */
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#define OS_OBJECT_RETURNS_RETAINED
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/*! @parseOnly */
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#define OS_OBJECT_CONSUMED
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/*! @parseOnly */
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#define OS_OBJECT_BRIDGE
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/*! @parseOnly */
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#define OS_WARN_RESULT_NEEDS_RELEASE OS_WARN_RESULT
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/*! @parseOnly */
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#define OS_OBJECT_OBJC_RUNTIME_VISIBLE
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#define OS_OBJECT_USE_OBJC_RETAIN_RELEASE 0
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#endif
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#if OS_OBJECT_SWIFT3
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#define OS_OBJECT_DECL_CLASS(name) \
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OS_OBJECT_DECL_SUBCLASS_SWIFT(name, object)
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#elif OS_OBJECT_USE_OBJC
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#define OS_OBJECT_DECL_CLASS(name) \
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OS_OBJECT_DECL(name)
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#else
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#define OS_OBJECT_DECL_CLASS(name) \
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typedef struct name##_s *name##_t
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#endif
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#define OS_OBJECT_GLOBAL_OBJECT(type, object) ((OS_OBJECT_BRIDGE type)&(object))
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__BEGIN_DECLS
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/*!
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* @function os_retain
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*
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* @abstract
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* Increment the reference count of an os_object.
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*
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* @discussion
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* On a platform with the modern Objective-C runtime this is exactly equivalent
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* to sending the object the -[retain] message.
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*
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* @param object
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* The object to retain.
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*
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* @result
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* The retained object.
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*/
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API_AVAILABLE(macos(10.10), ios(8.0))
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OS_EXPORT OS_SWIFT_UNAVAILABLE("Can't be used with ARC")
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void*
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os_retain(void *object);
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#if OS_OBJECT_USE_OBJC
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#undef os_retain
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#define os_retain(object) [object retain]
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#endif
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/*!
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* @function os_release
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*
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* @abstract
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* Decrement the reference count of a os_object.
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*
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* @discussion
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* On a platform with the modern Objective-C runtime this is exactly equivalent
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* to sending the object the -[release] message.
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*
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* @param object
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* The object to release.
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*/
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API_AVAILABLE(macos(10.10), ios(8.0))
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OS_EXPORT
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void OS_SWIFT_UNAVAILABLE("Can't be used with ARC")
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os_release(void *object);
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#if OS_OBJECT_USE_OBJC
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#undef os_release
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#define os_release(object) [object release]
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#endif
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__END_DECLS
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#endif
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