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Added implementations of the hooks provided by the new runtime. This brings

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NSObject up to feature-parity with the OS X 10.5 implementation when using the
new runtime and up to feature-parity with the 10.6 implementation if you are
using the new runtime and compiling with clang.

Also removes the objc_mutex_wibble stuff from NSObject in favour of just using
NSLocks (which, with the new implementation, are now faster than using
objc_mutex_stuff).



git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@28657 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
theraven 2009-09-10 20:14:42 +00:00
parent 4f13b89771
commit 023f3b5e17
4 changed files with 206 additions and 36 deletions
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52
Headers/Foundation/NSObject.h
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@ -234,6 +234,58 @@ extern "C" {
- (id) self;
- (Class) superclass;
- (NSZone*) zone;
#if OS_API_VERSION(MAC_OS_X_VERSION_10_5, GS_API_LATEST)
/**
* This method will be called when attempting to send a message a class that
* does not understand it. The class may install a new method for the given
* selector and return YES, otherwise it should return NO.
*
* Note: This method is only reliable when using the GNUstep runtime. If you
* require compatibility with the GCC runtime, you must also implement
* -forwardInvocation: with equivalent semantics. This will be considerably
* slower, but more portable.
*/
+ (BOOL)resolveClassMethod:(SEL)name;
/**
* This method will be called when attempting to send a message an instance
* that does not understand it. The class may install a new method for the
* given selector and return YES, otherwise it should return NO.
*
* Note: This method is only reliable when using the GNUstep runtime. If you
* require compatibility with the GCC runtime, you must also implement
* -forwardInvocation: with equivalent semantics. This will be considerably
* slower, but more portable.
*/
+ (BOOL)resolveInstanceMethod:(SEL)name;
#endif
#if OS_API_VERSION(MAC_OS_X_VERSION_10_6, GS_API_LATEST)
/**
* If an object does not understand a message, it may delegate it to another
* object. Returning nil indicates that forwarding should not take place. The
* default implementation of this returns nil, but care should be taken when
* subclassing NSObject subclasses and overriding this method that
* the superclass implementation is called if returning nil.
*
* Note: This method is only reliable when using the GNUstep runtime and code
* compiled with clang. If you require compatibility with GCC and the GCC
* runtime, you must also implement -forwardInvocation: with equivalent
* semantics. This will be considerably slower, but more portable.
*/
- (id)forwardingTargetForSelector:(SEL)aSelector;
/**
* Returns an auto-accessing proxy for the given object. This proxy sends a
* -beginContentAccess message to the receiver when it is created and an
* -endContentAccess message when it is destroyed. This prevents an object
* that implements the NSDiscardableContent protocol from having its contents
* discarded for as long as the proxy exists.
*
* On systems using the GNUstep runtime, messages send to the proxy will be
* slightly slower than direct messages. With the GCC runtime, they will be
* approximately two orders of magnitude slower. The GNUstep runtime,
* therefore, is strongly recommended for code calling this method.
*/
- (id)autoContentAccessingProxy;
#endif
@end
/**