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{
}
+ alloc
{
OFObject *instance;
size_t instanceSize = class_getInstanceSize(self);
Class class;
void (*last)(id, SEL) = NULL;
if ((instance = malloc(instanceSize + PRE_IVAR_ALIGN)) == NULL) {
alloc_failed_exception.isa = [OFAllocFailedException class];
@throw (OFAllocFailedException*)&alloc_failed_exception;
}
((struct pre_ivar*)instance)->memoryChunks = NULL;
((struct pre_ivar*)instance)->memoryChunksSize = 0;
((struct pre_ivar*)instance)->retainCount = 1;
#if !defined(OF_ATOMIC_OPS) && defined(OF_THREADS)
if (!of_spinlock_new(
&((struct pre_ivar*)instance)->retainCountSpinlock)) {
free(instance);
@throw [OFInitializationFailedException
exceptionWithClass: self];
}
#endif
instance = (OFObject*)((char*)instance + PRE_IVAR_ALIGN);
memset(instance, 0, instanceSize);
instance->isa = self;
for (class = self; class != Nil; class = class_getSuperclass(class)) {
void (*construct)(id, SEL);
if ([class instancesRespondToSelector: cxx_construct]) {
if ((construct = (void(*)(id, SEL))[class
instanceMethodForSelector: cxx_construct]) != last)
construct(instance, cxx_construct);
last = construct;
} else
break;
}
return instance;
}
+ new
{
return [[self alloc] init];
}
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{
}
+ alloc
{
OFObject *instance;
size_t instanceSize = class_getInstanceSize(self);
if ((instance = calloc(instanceSize + PRE_IVAR_ALIGN, 1)) == NULL) {
alloc_failed_exception.isa = [OFAllocFailedException class];
@throw (OFAllocFailedException*)&alloc_failed_exception;
}
((struct pre_ivar*)instance)->memoryChunks = NULL;
((struct pre_ivar*)instance)->memoryChunksSize = 0;
((struct pre_ivar*)instance)->retainCount = 1;
#if !defined(OF_ATOMIC_OPS) && defined(OF_THREADS)
if (!of_spinlock_new(
&((struct pre_ivar*)instance)->retainCountSpinlock)) {
free(instance);
@throw [OFInitializationFailedException
exceptionWithClass: self];
}
#endif
instance = (OFObject*)((char*)instance + PRE_IVAR_ALIGN);
instance->isa = self;
return instance;
}
+ new
{
return [[self alloc] init];
}
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}
+ (OFString*)description
{
return [self className];
}
+ (IMP)setImplementation: (IMP)newImp
forClassMethod: (SEL)selector
{
#if defined(OF_OBJFW_RUNTIME)
if (newImp == (IMP)0 || !class_respondsToSelector(self->isa, selector))
@throw [OFInvalidArgumentException exceptionWithClass: self
selector: _cmd];
return objc_replace_class_method(self, selector, newImp);
#else
Method method;
if (newImp == (IMP)0 ||
(method = class_getClassMethod(self, selector)) == NULL)
@throw [OFInvalidArgumentException exceptionWithClass: self
selector: _cmd];
/*
* Cast needed because it's isa in the Apple runtime, but class_pointer
* in the GNU runtime.
*/
return class_replaceMethod(((OFObject*)self)->isa, selector, newImp,
method_getTypeEncoding(method));
#endif
}
+ (IMP)replaceClassMethod: (SEL)selector
withMethodFromClass: (Class)class
{
IMP newImp;
if (![class isSubclassOfClass: self])
@throw [OFInvalidArgumentException exceptionWithClass: self
selector: _cmd];
newImp = [class methodForSelector: selector];
return [self setImplementation: newImp
forClassMethod: selector];
}
+ (IMP)setImplementation: (IMP)newImp
forInstanceMethod: (SEL)selector
{
#if defined(OF_OBJFW_RUNTIME)
if (newImp == (IMP)0 || !class_respondsToSelector(self, selector))
@throw [OFInvalidArgumentException exceptionWithClass: self
selector: _cmd];
return objc_replace_instance_method(self, selector, newImp);
#else
Method method;
if (newImp == (IMP)0 ||
(method = class_getInstanceMethod(self, selector)) == NULL)
@throw [OFInvalidArgumentException exceptionWithClass: self
selector: _cmd];
return class_replaceMethod(self, selector, newImp,
method_getTypeEncoding(method));
#endif
}
+ (IMP)replaceInstanceMethod: (SEL)selector
withMethodFromClass: (Class)class
{
IMP newImp;
if (![class isSubclassOfClass: self])
@throw [OFInvalidArgumentException exceptionWithClass: self
selector: _cmd];
newImp = [class instanceMethodForSelector: selector];
return [self setImplementation: newImp
forInstanceMethod: selector];
}
+ (BOOL)addInstanceMethod: (SEL)selector
withTypeEncoding: (const char*)typeEncoding
implementation: (IMP)implementation
{
#if defined(OF_APPLE_RUNTIME)
return class_addMethod(self, selector, implementation, typeEncoding);
#endif
}
+ (BOOL)addClassMethod: (SEL)selector
withTypeEncoding: (const char*)typeEncoding
implementation: (IMP)implementation
{
#if defined(OF_APPLE_RUNTIME)
return class_addMethod(((OFObject*)self)->isa, selector, implementation,
typeEncoding);
#endif
}
+ (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(((OFObject*)class)->isa, &count);
@try {
for (i = 0; i < count; i++) {
SEL selector = method_getName(methodList[i]);
IMP implementation;
/*
* Don't replace methods implemented in receiving class.
*/
if ([self methodForSelector: selector] !=
[superclass methodForSelector: selector])
continue;
implementation = [class methodForSelector: selector];
if ([self respondsToSelector: selector])
[self setImplementation: implementation
forClassMethod: selector];
else {
const char *typeEncoding =
method_getTypeEncoding(methodList[i]);
[self addClassMethod: selector
withTypeEncoding: typeEncoding
implementation: implementation];
}
}
} @finally {
free(methodList);
}
methodList = class_copyMethodList(class, &count);
@try {
for (i = 0; i < count; i++) {
SEL selector = method_getName(methodList[i]);
IMP implementation;
/*
* Don't replace methods implemented in receiving class.
*/
if ([self instanceMethodForSelector: selector] !=
[superclass instanceMethodForSelector: selector])
continue;
implementation =
[class instanceMethodForSelector: selector];
if ([self instancesRespondToSelector: selector])
[self setImplementation: implementation
forInstanceMethod: selector];
else {
const char *typeEncoding =
method_getTypeEncoding(methodList[i]);
[self addInstanceMethod: selector
withTypeEncoding: typeEncoding
implementation: implementation];
}
}
} @finally {
free(methodList);
}
#else
/* FIXME */
#endif
[self inheritMethodsFromClass: [class superclass]];
}
- init
{
return self;
}
- (Class)class
{
return isa;
}
|
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}
+ (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(((OFObject*)self)->isa, 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(((OFObject*)class)->isa, &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);
}
#else
/* FIXME */
#endif
[self inheritMethodsFromClass: [class superclass]];
}
- init
{
Class class;
void (*last)(id, SEL) = NULL;
for (class = isa; class != Nil; class = class_getSuperclass(class)) {
void (*construct)(id, SEL);
if ([class instancesRespondToSelector: cxx_construct]) {
if ((construct = (void(*)(id, SEL))[class
instanceMethodForSelector: cxx_construct]) != last)
construct(self, cxx_construct);
last = construct;
} else
break;
}
return self;
}
- (Class)class
{
return isa;
}
|