/* * Copyright (c) 2008, 2009, 2010, 2011, 2012 * Jonathan Schleifer * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * * Alternatively, it may be distributed under the terms of the GNU General * Public License, either version 2 or 3, which can be found in the file * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #include "config.h" #define __NO_EXT_QNX #include #include #include #include #include #ifdef __QNX__ # include #endif #import "OFObject.h" #import "OFTimer.h" #import "OFThread.h" #import "OFRunLoop.h" #import "OFAutoreleasePool.h" #import "OFAllocFailedException.h" #import "OFEnumerationMutationException.h" #import "OFInitializationFailedException.h" #import "OFInvalidArgumentException.h" #import "OFMemoryNotPartOfObjectException.h" #import "OFNotImplementedException.h" #import "OFOutOfMemoryException.h" #import "OFOutOfRangeException.h" #import "autorelease.h" #import "macros.h" #if defined(OF_APPLE_RUNTIME) && __OBJC2__ # import #elif defined(OF_OBJFW_RUNTIME) # import "runtime.h" #endif #ifdef _WIN32 # include #endif #import "OFString.h" #import "instance.h" #if defined(OF_ATOMIC_OPS) # import "atomic.h" #elif defined(OF_THREADS) # import "threading.h" #endif #if defined(OF_APPLE_RUNTIME) && !defined(__ppc64__) extern id of_forward(id, SEL, ...); extern struct stret of_forward_stret(id, SEL, ...); #endif struct pre_ivar { int32_t retainCount; struct pre_mem *firstMem, *lastMem; #if !defined(OF_ATOMIC_OPS) && defined(OF_THREADS) of_spinlock_t retainCountSpinlock; #endif }; struct pre_mem { struct pre_mem *prev, *next; id owner; }; #define PRE_IVAR_ALIGN ((sizeof(struct pre_ivar) + \ (__BIGGEST_ALIGNMENT__ - 1)) & ~(__BIGGEST_ALIGNMENT__ - 1)) #define PRE_IVAR ((struct pre_ivar*)(void*)((char*)self - PRE_IVAR_ALIGN)) #define PRE_MEM_ALIGN ((sizeof(struct pre_mem) + \ (__BIGGEST_ALIGNMENT__ - 1)) & ~(__BIGGEST_ALIGNMENT__ - 1)) #define PRE_MEM(mem) ((struct pre_mem*)(void*)((char*)mem - PRE_MEM_ALIGN)) static struct { Class isa; } alloc_failed_exception; size_t of_pagesize; size_t of_num_cpus; #if !defined(OF_APPLE_RUNTIME) || defined(__OBJC2__) static void uncaught_exception_handler(id exception) { fprintf(stderr, "\nRuntime error: Unhandled exception:\n%s\n", [[exception description] UTF8String]); abort(); } #endif static void enumeration_mutation_handler(id object) { @throw [OFEnumerationMutationException exceptionWithClass: [object class] object: object]; } void of_method_not_found(id obj, SEL sel) { fprintf(stderr, "Runtime error: Selector %s is not implemented in " "class %s!\n", sel_getName(sel), class_getName(object_getClass(obj))); abort(); } #ifdef OF_OBJFW_RUNTIME static IMP forward_handler(id obj, SEL sel) { /* Try resolveClassMethod:/resolveInstanceMethod: */ if (class_isMetaClass(object_getClass(obj))) { if ([obj respondsToSelector: @selector(resolveClassMethod:)] && [obj resolveClassMethod: sel]) { if (![obj respondsToSelector: sel]) { fprintf(stderr, "Runtime error: [%s " "resolveClassMethod: %s] returned YES " "without adding the method!\n", class_getName(obj), sel_getName(sel)); abort(); } return objc_msg_lookup(obj, sel); } } else { Class c = object_getClass(obj); if ([c respondsToSelector: @selector(resolveInstanceMethod:)] && [c resolveInstanceMethod: sel]) { if (![obj respondsToSelector: sel]) { fprintf(stderr, "Runtime error: [%s " "resolveInstanceMethod: %s] returned YES " "without adding the method!\n", class_getName(object_getClass(obj)), sel_getName(sel)); abort(); } return objc_msg_lookup(obj, sel); } } of_method_not_found(obj, sel); return NULL; } #endif #ifndef HAVE_OBJC_ENUMERATIONMUTATION void objc_enumerationMutation(id object) { enumeration_mutation_handler(object); } #endif id of_alloc_object(Class class, size_t extraSize, size_t extraAlignment, void **extra) { OFObject *instance; size_t instanceSize; instanceSize = class_getInstanceSize(class); if OF_UNLIKELY (extraAlignment > 0) extraAlignment = ((instanceSize + extraAlignment - 1) & ~(extraAlignment - 1)) - extraAlignment; instance = malloc(PRE_IVAR_ALIGN + instanceSize + extraAlignment + extraSize); if OF_UNLIKELY (instance == nil) { alloc_failed_exception.isa = [OFAllocFailedException class]; @throw (id)&alloc_failed_exception; } ((struct pre_ivar*)instance)->retainCount = 1; ((struct pre_ivar*)instance)->firstMem = NULL; ((struct pre_ivar*)instance)->lastMem = NULL; #if !defined(OF_ATOMIC_OPS) && defined(OF_THREADS) if OF_UNLIKELY (!of_spinlock_new( &((struct pre_ivar*)instance)->retainCountSpinlock)) { free(instance); @throw [OFInitializationFailedException exceptionWithClass: class]; } #endif instance = (OFObject*)((char*)instance + PRE_IVAR_ALIGN); memset(instance, 0, instanceSize); if (!objc_constructInstance(class, instance)) { free((char*)instance - PRE_IVAR_ALIGN); @throw [OFInitializationFailedException exceptionWithClass: class]; } if OF_UNLIKELY (extra != NULL) *extra = (char*)instance + instanceSize + extraAlignment; return instance; } const char* _NSPrintForDebugger(id object) { return [[object description] cStringWithEncoding: OF_STRING_ENCODING_NATIVE]; } /* References for static linking */ void _references_to_categories_of_OFObject(void) { _OFObject_Serialization_reference = 1; } @implementation OFObject + (void)load { #if !defined(OF_APPLE_RUNTIME) || defined(__OBJC2__) objc_setUncaughtExceptionHandler(uncaught_exception_handler); #endif #if defined(OF_OBJFW_RUNTIME) objc_forward_handler = forward_handler; #elif defined(OF_APPLE_RUNTIME) && !defined(__ppc64__) objc_setForwardHandler(of_forward, of_forward_stret); #endif #ifdef HAVE_OBJC_ENUMERATIONMUTATION objc_setEnumerationMutationHandler(enumeration_mutation_handler); #endif #if defined(_WIN32) SYSTEM_INFO si; GetSystemInfo(&si); of_pagesize = si.dwPageSize; of_num_cpus = si.dwNumberOfProcessors; #elif defined(__QNX__) if ((of_pagesize = sysconf(_SC_PAGESIZE)) < 1) of_pagesize = 4096; of_num_cpus = _syspage_ptr->num_cpu; #else # ifdef _SC_PAGESIZE if ((of_pagesize = sysconf(_SC_PAGESIZE)) < 1) # endif of_pagesize = 4096; # ifdef _SC_NPROCESSORS_CONF if ((of_num_cpus = sysconf(_SC_NPROCESSORS_CONF)) < 1) # endif of_num_cpus = 1; #endif } + (void)initialize { } + alloc { return of_alloc_object(self, 0, 0, NULL); } + new { return [[self alloc] init]; } + (Class)class { return self; } + (OFString*)className { return [OFString stringWithCString: class_getName(self) encoding: OF_STRING_ENCODING_ASCII]; } + (BOOL)isSubclassOfClass: (Class)class { Class iter; for (iter = self; iter != Nil; iter = class_getSuperclass(iter)) if (iter == class) return YES; return NO; } + (Class)superclass { return class_getSuperclass(self); } + (BOOL)instancesRespondToSelector: (SEL)selector { return class_respondsToSelector(self, selector); } + (BOOL)conformsToProtocol: (Protocol*)protocol { Class c; for (c = self; c != Nil; c = class_getSuperclass(c)) if (class_conformsToProtocol(c, protocol)) return YES; return NO; } + (IMP)instanceMethodForSelector: (SEL)selector { return class_getMethodImplementation(self, selector); } + (const char*)typeEncodingForInstanceSelector: (SEL)selector { #if defined(OF_OBJFW_RUNTIME) const char *ret; if ((ret = objc_get_type_encoding(self, selector)) == NULL) @throw [OFNotImplementedException exceptionWithClass: self selector: selector]; return ret; #else Method m; const char *ret; if ((m = class_getInstanceMethod(self, selector)) == NULL || (ret = method_getTypeEncoding(m)) == NULL) @throw [OFNotImplementedException exceptionWithClass: self selector: selector]; return ret; #endif } + (OFString*)description { return [self className]; } + (IMP)replaceClassMethod: (SEL)selector withMethodFromClass: (Class)class { IMP newImp; const char *typeEncoding; newImp = [class methodForSelector: selector]; typeEncoding = [class typeEncodingForSelector: selector]; return [self replaceClassMethod: selector withImplementation: newImp typeEncoding: typeEncoding]; } + (IMP)replaceInstanceMethod: (SEL)selector withMethodFromClass: (Class)class { IMP newImp; const char *typeEncoding; newImp = [class instanceMethodForSelector: selector]; typeEncoding = [class typeEncodingForInstanceSelector: selector]; return [self replaceInstanceMethod: selector withImplementation: newImp typeEncoding: typeEncoding]; } + (IMP)replaceInstanceMethod: (SEL)selector withImplementation: (IMP)implementation typeEncoding: (const char*)typeEncoding { return class_replaceMethod(self, selector, implementation, typeEncoding); } + (IMP)replaceClassMethod: (SEL)selector withImplementation: (IMP)implementation typeEncoding: (const char*)typeEncoding { return class_replaceMethod(object_getClass(self), selector, implementation, typeEncoding); } + (void)inheritMethodsFromClass: (Class)class { Class superclass = [self superclass]; if ([self isSubclassOfClass: class]) return; #if defined(OF_APPLE_RUNTIME) Method *methodList; unsigned i, count; methodList = class_copyMethodList(object_getClass(class), &count); @try { for (i = 0; i < count; i++) { SEL selector = method_getName(methodList[i]); /* * Don't replace methods implemented in receiving class. */ if ([self methodForSelector: selector] != [superclass methodForSelector: selector]) continue; [self replaceClassMethod: selector withMethodFromClass: class]; } } @finally { free(methodList); } methodList = class_copyMethodList(class, &count); @try { for (i = 0; i < count; i++) { SEL selector = method_getName(methodList[i]); /* * Don't replace methods implemented in receiving class. */ if ([self instanceMethodForSelector: selector] != [superclass instanceMethodForSelector: selector]) continue; [self replaceInstanceMethod: selector withMethodFromClass: class]; } } @finally { free(methodList); } #elif defined(OF_OBJFW_RUNTIME) struct objc_method_list *methodlist; for (methodlist = object_getClass(class)->methodlist; methodlist != NULL; methodlist = methodlist->next) { int i; for (i = 0; i < methodlist->count; i++) { SEL selector = (SEL)&methodlist->methods[i].sel; /* * Don't replace methods implemented in receiving class. */ if ([self methodForSelector: selector] != [superclass methodForSelector: selector]) continue; [self replaceClassMethod: selector withMethodFromClass: class]; } } for (methodlist = class->methodlist; methodlist != NULL; methodlist = methodlist->next) { int i; for (i = 0; i < methodlist->count; i++) { SEL selector = (SEL)&methodlist->methods[i].sel; /* * Don't replace methods implemented in receiving class. */ if ([self instanceMethodForSelector: selector] != [superclass instanceMethodForSelector: selector]) continue; [self replaceInstanceMethod: selector withMethodFromClass: class]; } } #endif [self inheritMethodsFromClass: [class superclass]]; } + (BOOL)resolveClassMethod: (SEL)selector { return NO; } + (BOOL)resolveInstanceMethod: (SEL)selector { return NO; } - init { return self; } - (Class)class { return object_getClass(self); } - (OFString*)className { return [OFString stringWithCString: object_getClassName(self) encoding: OF_STRING_ENCODING_ASCII]; } - (BOOL)isKindOfClass: (Class)class { Class iter; for (iter = object_getClass(self); iter != Nil; iter = class_getSuperclass(iter)) if (iter == class) return YES; return NO; } - (BOOL)isMemberOfClass: (Class)class { return (object_getClass(self) == class); } - (BOOL)respondsToSelector: (SEL)selector { return class_respondsToSelector(object_getClass(self), selector); } - (BOOL)conformsToProtocol: (Protocol*)protocol { return [object_getClass(self) conformsToProtocol: protocol]; } - (IMP)methodForSelector: (SEL)selector { return class_getMethodImplementation(object_getClass(self), selector); } - (id)performSelector: (SEL)selector { id (*imp)(id, SEL) = (id(*)(id, SEL))[self methodForSelector: selector]; return imp(self, selector); } - (id)performSelector: (SEL)selector withObject: (id)object { id (*imp)(id, SEL, id) = (id(*)(id, SEL, id))[self methodForSelector: selector]; return imp(self, selector, object); } - (id)performSelector: (SEL)selector withObject: (id)object1 withObject: (id)object2 { id (*imp)(id, SEL, id, id) = (id(*)(id, SEL, id, id))[self methodForSelector: selector]; return imp(self, selector, object1, object2); } - (void)performSelector: (SEL)selector afterDelay: (double)delay { void *pool = objc_autoreleasePoolPush(); [OFTimer scheduledTimerWithTimeInterval: delay target: self selector: selector repeats: NO]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector withObject: (id)object afterDelay: (double)delay { void *pool = objc_autoreleasePoolPush(); [OFTimer scheduledTimerWithTimeInterval: delay target: self selector: selector object: object repeats: NO]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector withObject: (id)object1 withObject: (id)object2 afterDelay: (double)delay { void *pool = objc_autoreleasePoolPush(); [OFTimer scheduledTimerWithTimeInterval: delay target: self selector: selector object: object1 object: object2 repeats: NO]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread waitUntilDone: (BOOL)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector repeats: NO]; [[thread runLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread withObject: (id)object waitUntilDone: (BOOL)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector object: object repeats: NO]; [[thread runLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread withObject: (id)object1 withObject: (id)object2 waitUntilDone: (BOOL)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector object: object1 object: object2 repeats: NO]; [[thread runLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelectorOnMainThread: (SEL)selector waitUntilDone: (BOOL)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector repeats: NO]; [[OFRunLoop mainRunLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelectorOnMainThread: (SEL)selector withObject: (id)object waitUntilDone: (BOOL)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector object: object repeats: NO]; [[OFRunLoop mainRunLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelectorOnMainThread: (SEL)selector withObject: (id)object1 withObject: (id)object2 waitUntilDone: (BOOL)waitUntilDone { void *pool = objc_autoreleasePoolPush(); OFTimer *timer = [OFTimer timerWithTimeInterval: 0 target: self selector: selector object: object1 object: object2 repeats: NO]; [[OFRunLoop mainRunLoop] addTimer: timer]; if (waitUntilDone) [timer waitUntilDone]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread afterDelay: (double)delay { void *pool = objc_autoreleasePoolPush(); [[thread runLoop] addTimer: [OFTimer timerWithTimeInterval: delay target: self selector: selector repeats: NO]]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread withObject: (id)object afterDelay: (double)delay { void *pool = objc_autoreleasePoolPush(); [[thread runLoop] addTimer: [OFTimer timerWithTimeInterval: delay target: self selector: selector object: object repeats: NO]]; objc_autoreleasePoolPop(pool); } - (void)performSelector: (SEL)selector onThread: (OFThread*)thread withObject: (id)object1 withObject: (id)object2 afterDelay: (double)delay { void *pool = objc_autoreleasePoolPush(); [[thread runLoop] addTimer: [OFTimer timerWithTimeInterval: delay target: self selector: selector object: object1 object: object2 repeats: NO]]; objc_autoreleasePoolPop(pool); } - (const char*)typeEncodingForSelector: (SEL)selector { #if defined(OF_OBJFW_RUNTIME) const char *ret; if ((ret = objc_get_type_encoding(object_getClass(self), selector)) == NULL) @throw [OFNotImplementedException exceptionWithClass: [self class] selector: selector]; return ret; #else Method m; const char *ret; if ((m = class_getInstanceMethod(object_getClass(self), selector)) == NULL || (ret = method_getTypeEncoding(m)) == NULL) @throw [OFNotImplementedException exceptionWithClass: [self class] selector: selector]; return ret; #endif } - (BOOL)isEqual: (id)object { /* Classes containing data should reimplement this! */ return (self == object); } - (uint32_t)hash { /* Classes containing data should reimplement this! */ return (uint32_t)(uintptr_t)self; } - (OFString*)description { /* Classes containing data should reimplement this! */ return [OFString stringWithFormat: @"<%@: %p>", [self className], self]; } - (void*)allocMemoryWithSize: (size_t)size { void *pointer; struct pre_mem *preMem; if OF_UNLIKELY (size > SIZE_MAX - PRE_IVAR_ALIGN) @throw [OFOutOfRangeException exceptionWithClass: [self class]]; if OF_UNLIKELY ((pointer = malloc(PRE_MEM_ALIGN + size)) == NULL) @throw [OFOutOfMemoryException exceptionWithClass: [self class] requestedSize: size]; preMem = pointer; preMem->owner = self; preMem->prev = PRE_IVAR->lastMem; preMem->next = NULL; if OF_LIKELY (PRE_IVAR->lastMem != NULL) PRE_IVAR->lastMem->next = preMem; if OF_UNLIKELY (PRE_IVAR->firstMem == NULL) PRE_IVAR->firstMem = preMem; PRE_IVAR->lastMem = preMem; return (char*)pointer + PRE_MEM_ALIGN; } - (void*)allocMemoryWithSize: (size_t)size count: (size_t)count { if OF_UNLIKELY (size == 0 || count == 0) return NULL; if OF_UNLIKELY (count > SIZE_MAX / size) @throw [OFOutOfRangeException exceptionWithClass: [self class]]; return [self allocMemoryWithSize: size * count]; } - (void*)resizeMemory: (void*)pointer size: (size_t)size { void *new; struct pre_mem *preMem; if OF_UNLIKELY (pointer == NULL) return [self allocMemoryWithSize: size]; if OF_UNLIKELY (size == 0) { [self freeMemory: pointer]; return NULL; } if OF_UNLIKELY (PRE_MEM(pointer)->owner != self) @throw [OFMemoryNotPartOfObjectException exceptionWithClass: [self class] pointer: pointer]; if OF_UNLIKELY ((new = realloc(PRE_MEM(pointer), PRE_MEM_ALIGN + size)) == NULL) @throw [OFOutOfMemoryException exceptionWithClass: [self class] requestedSize: size]; preMem = new; if OF_UNLIKELY (preMem != PRE_MEM(pointer)) { if OF_LIKELY (preMem->prev != NULL) preMem->prev->next = preMem; if OF_LIKELY (preMem->next != NULL) preMem->next->prev = preMem; if OF_UNLIKELY (PRE_IVAR->firstMem == PRE_MEM(pointer)) PRE_IVAR->firstMem = preMem; if OF_UNLIKELY (PRE_IVAR->lastMem == PRE_MEM(pointer)) PRE_IVAR->lastMem = preMem; } return (char*)new + PRE_MEM_ALIGN; } - (void*)resizeMemory: (void*)pointer size: (size_t)size count: (size_t)count { if OF_UNLIKELY (pointer == NULL) return [self allocMemoryWithSize: size count: count]; if OF_UNLIKELY (size == 0 || count == 0) { [self freeMemory: pointer]; return NULL; } if OF_UNLIKELY (count > SIZE_MAX / size) @throw [OFOutOfRangeException exceptionWithClass: [self class]]; return [self resizeMemory: pointer size: size * count]; } - (void)freeMemory: (void*)pointer { if OF_UNLIKELY (pointer == NULL) return; if OF_UNLIKELY (PRE_MEM(pointer)->owner != self) @throw [OFMemoryNotPartOfObjectException exceptionWithClass: [self class] pointer: pointer]; if OF_LIKELY (PRE_MEM(pointer)->prev != NULL) PRE_MEM(pointer)->prev->next = PRE_MEM(pointer)->next; if OF_LIKELY (PRE_MEM(pointer)->next != NULL) PRE_MEM(pointer)->next->prev = PRE_MEM(pointer)->prev; if OF_UNLIKELY (PRE_IVAR->firstMem == PRE_MEM(pointer)) PRE_IVAR->firstMem = PRE_MEM(pointer)->next; if OF_UNLIKELY (PRE_IVAR->lastMem == PRE_MEM(pointer)) PRE_IVAR->lastMem = PRE_MEM(pointer)->prev; /* To detect double-free */ PRE_MEM(pointer)->owner = nil; free(PRE_MEM(pointer)); } - (id)forwardingTargetForSelector: (SEL)selector { return nil; } - retain { #if defined(OF_ATOMIC_OPS) of_atomic_inc_32(&PRE_IVAR->retainCount); #elif defined(OF_THREADS) OF_ENSURE(of_spinlock_lock(&PRE_IVAR->retainCountSpinlock)); PRE_IVAR->retainCount++; OF_ENSURE(of_spinlock_unlock(&PRE_IVAR->retainCountSspinlock)); #else PRE_IVAR->retainCount++; #endif return self; } - (unsigned int)retainCount { assert(PRE_IVAR->retainCount >= 0); return PRE_IVAR->retainCount; } - (void)release { #if defined(OF_ATOMIC_OPS) if (of_atomic_dec_32(&PRE_IVAR->retainCount) <= 0) [self dealloc]; #elif defined(OF_THREADS) size_t c; OF_ENSURE(of_spinlock_lock(&PRE_IVAR->retainCountSpinlock)); c = --PRE_IVAR->retainCount; OF_ENSURE(of_spinlock_unlock(&PRE_IVAR->retainCountSpinlock)); if (c == 0) [self dealloc]; #else if (--PRE_IVAR->retainCount == 0) [self dealloc]; #endif } - autorelease { return _objc_rootAutorelease(self); } - self { return self; } - (BOOL)isProxy { return NO; } - (void)dealloc { struct pre_mem *iter; objc_destructInstance(self); iter = PRE_IVAR->firstMem; while (iter != NULL) { struct pre_mem *next = iter->next; /* * We can use owner as a sentinel to prevent exploitation in * case there is a buffer underflow somewhere. */ if OF_UNLIKELY (iter->owner != self) abort(); free(iter); iter = next; } free((char*)self - PRE_IVAR_ALIGN); } /* Required to use properties with the Apple runtime */ - copyWithZone: (void*)zone { if OF_UNLIKELY (zone != NULL) @throw [OFNotImplementedException exceptionWithClass: [self class] selector: _cmd]; return [(id)self copy]; } - mutableCopyWithZone: (void*)zone { if OF_UNLIKELY (zone != NULL) @throw [OFNotImplementedException exceptionWithClass: [self class] selector: _cmd]; return [(id)self mutableCopy]; } /* * Those are needed as the root class is the superclass of the root class's * metaclass and thus instance methods can be sent to class objects as well. */ + (void*)allocMemoryWithSize: (size_t)size { @throw [OFNotImplementedException exceptionWithClass: self selector: _cmd]; } + (void*)allocMemoryWithSize: (size_t)size count: (size_t)count { @throw [OFNotImplementedException exceptionWithClass: self selector: _cmd]; } + (void*)resizeMemory: (void*)pointer size: (size_t)size { @throw [OFNotImplementedException exceptionWithClass: self selector: _cmd]; } + (void*)resizeMemory: (void*)pointer size: (size_t)size count: (size_t)count { @throw [OFNotImplementedException exceptionWithClass: self selector: _cmd]; } + (void)freeMemory: (void*)pointer { @throw [OFNotImplementedException exceptionWithClass: self selector: _cmd]; } + retain { return self; } + autorelease { return self; } + (unsigned int)retainCount { return OF_RETAIN_COUNT_MAX; } + (void)release { } + (void)dealloc { @throw [OFNotImplementedException exceptionWithClass: self selector: _cmd]; } + copyWithZone: (void*)zone { @throw [OFNotImplementedException exceptionWithClass: self selector: _cmd]; } + mutableCopyWithZone: (void*)zone { @throw [OFNotImplementedException exceptionWithClass: self selector: _cmd]; } @end