X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=libobjc%2FObject.m;h=552acb037fac571518154dfeda76f764731ad67b;hb=0b81f26c304d304e6a239e04408de47e02c8625b;hp=3a5bcb31688c1336960e0078351871357cc3a727;hpb=6dead247c97de92dc042afc5ff360a7c983dc39d;p=gcc.git diff --git a/libobjc/Object.m b/libobjc/Object.m index 3a5bcb31688..552acb037fa 100644 --- a/libobjc/Object.m +++ b/libobjc/Object.m @@ -1,5 +1,6 @@ /* The implementation of class Object for Objective-C. - Copyright (C) 1993, 1994, 1995, 1997, 2002, 2009 Free Software Foundation, Inc. + Copyright (C) 1993, 1994, 1995, 1997, 2002, 2009, 2010 + Free Software Foundation, Inc. This file is part of GCC. @@ -23,367 +24,19 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see . */ #include "objc-private/common.h" -#include -#include #include "objc/Object.h" -#include "objc/Protocol.h" -#include "objc/objc-api.h" +#include "objc/runtime.h" @implementation Object -+ initialize -{ - return self; -} - -- init -{ - return self; -} - -+ new -{ - return [[self alloc] init]; -} - -+ alloc -{ - return class_create_instance(self); -} - -- free -{ - return object_dispose(self); -} - -- copy -{ - return [[self shallowCopy] deepen]; -} - -- shallowCopy -{ - return object_copy(self); -} - -- deepen -{ - return self; -} - -- deepCopy -{ - return [self copy]; -} - - (Class)class { - return object_get_class(self); -} - -- (Class)superClass -{ - return object_get_super_class(self); -} - -- (MetaClass)metaClass -{ - return object_get_meta_class(self); -} - -- (const char *)name -{ - return object_get_class_name(self); -} - -- self -{ - return self; -} - -- (unsigned int)hash -{ - return (size_t)self; -} - -- (BOOL)isEqual:anObject -{ - return self==anObject; -} - -- (int)compare:(id)anotherObject; -{ - if ([self isEqual:anotherObject]) - return 0; - // Ordering objects by their address is pretty useless, - // so subclasses should override this is some useful way. - else if ((id)self > anotherObject) - return 1; - else - return -1; -} - -- (BOOL)isMetaClass -{ - return NO; -} - -- (BOOL)isClass -{ - return object_is_class(self); -} - -- (BOOL)isInstance -{ - return object_is_instance(self); -} - -- (BOOL)isKindOf:(Class)aClassObject -{ - Class class; - - for (class = self->isa; class!=Nil; class = class_get_super_class(class)) - if (class==aClassObject) - return YES; - return NO; -} - -- (BOOL)isMemberOf:(Class)aClassObject -{ - return self->isa==aClassObject; -} - -- (BOOL)isKindOfClassNamed:(const char *)aClassName -{ - Class class; - - if (aClassName!=NULL) - for (class = self->isa; class!=Nil; class = class_get_super_class(class)) - if (!strcmp(class_get_class_name(class), aClassName)) - return YES; - return NO; -} - -- (BOOL)isMemberOfClassNamed:(const char *)aClassName -{ - return ((aClassName!=NULL) - &&!strcmp(class_get_class_name(self->isa), aClassName)); -} - -+ (BOOL)instancesRespondTo:(SEL)aSel -{ - return class_get_instance_method(self, aSel)!=METHOD_NULL; -} - -- (BOOL)respondsTo:(SEL)aSel -{ - return ((object_is_instance(self) - ?class_get_instance_method(self->isa, aSel) - :class_get_class_method(self->isa, aSel))!=METHOD_NULL); -} - -+ (IMP)instanceMethodFor:(SEL)aSel -{ - return method_get_imp(class_get_instance_method(self, aSel)); -} - -// Indicates if the receiving class or instance conforms to the given protocol -// not usually overridden by subclasses -// -// Modified 9/5/94 to always search the class object's protocol list, rather -// than the meta class. - -+ (BOOL) conformsTo: (Protocol*)aProtocol -{ - size_t i; - struct objc_protocol_list* proto_list; - id parent; - - for (proto_list = ((Class)self)->protocols; - proto_list; proto_list = proto_list->next) - { - for (i=0; i < proto_list->count; i++) - { - if ([proto_list->list[i] conformsTo: aProtocol]) - return YES; - } - } - - if ((parent = [self superClass])) - return [parent conformsTo: aProtocol]; - else - return NO; -} - -- (BOOL) conformsTo: (Protocol*)aProtocol -{ - return [[self class] conformsTo:aProtocol]; -} - -- (IMP)methodFor:(SEL)aSel -{ - return (method_get_imp(object_is_instance(self) - ?class_get_instance_method(self->isa, aSel) - :class_get_class_method(self->isa, aSel))); -} - -+ (struct objc_method_description *)descriptionForInstanceMethod:(SEL)aSel -{ - return ((struct objc_method_description *) - class_get_instance_method(self, aSel)); -} - -- (struct objc_method_description *)descriptionForMethod:(SEL)aSel -{ - return ((struct objc_method_description *) - (object_is_instance(self) - ?class_get_instance_method(self->isa, aSel) - :class_get_class_method(self->isa, aSel))); -} - -- perform:(SEL)aSel -{ - IMP msg = objc_msg_lookup(self, aSel); - if (!msg) - return [self error:"invalid selector passed to %s", sel_get_name(_cmd)]; - return (*msg)(self, aSel); -} - -- perform:(SEL)aSel with:anObject -{ - IMP msg = objc_msg_lookup(self, aSel); - if (!msg) - return [self error:"invalid selector passed to %s", sel_get_name(_cmd)]; - return (*msg)(self, aSel, anObject); -} - -- perform:(SEL)aSel with:anObject1 with:anObject2 -{ - IMP msg = objc_msg_lookup(self, aSel); - if (!msg) - return [self error:"invalid selector passed to %s", sel_get_name(_cmd)]; - return (*msg)(self, aSel, anObject1, anObject2); -} - -- (retval_t)forward:(SEL)aSel :(arglist_t)argFrame -{ - (void) argFrame; /* UNUSED */ - return (retval_t)[self doesNotRecognize: aSel]; -} - -- (retval_t)performv:(SEL)aSel :(arglist_t)argFrame -{ - return objc_msg_sendv(self, aSel, argFrame); -} - -+ poseAs:(Class)aClassObject -{ - return class_pose_as(self, aClassObject); -} - -- (Class)transmuteClassTo:(Class)aClassObject -{ - if (object_is_instance(self)) - if (class_is_class(aClassObject)) - if (class_get_instance_size(aClassObject)==class_get_instance_size(isa)) - if ([self isKindOf:aClassObject]) - { - Class old_isa = isa; - isa = aClassObject; - return old_isa; - } - return nil; -} - -- subclassResponsibility:(SEL)aSel -{ - return [self error:"subclass should override %s", sel_get_name(aSel)]; -} - -- notImplemented:(SEL)aSel -{ - return [self error:"method %s not implemented", sel_get_name(aSel)]; -} - -- shouldNotImplement:(SEL)aSel -{ - return [self error:"%s should not implement %s", - object_get_class_name(self), sel_get_name(aSel)]; -} - -- doesNotRecognize:(SEL)aSel -{ - return [self error:"%s does not recognize %s", - object_get_class_name(self), sel_get_name(aSel)]; -} - -- error:(const char *)aString, ... -{ -#define FMT "error: %s (%s)\n%s\n" - char fmt[(strlen((char*)FMT)+strlen((char*)object_get_class_name(self)) - +((aString!=NULL)?strlen((char*)aString):0)+8)]; - va_list ap; - - sprintf(fmt, FMT, object_get_class_name(self), - object_is_instance(self)?"instance":"class", - (aString!=NULL)?aString:""); - va_start(ap, aString); - objc_verror(self, OBJC_ERR_UNKNOWN, fmt, ap); - va_end(ap); - return nil; -#undef FMT -} - -+ (int)version -{ - return class_get_version(self); -} - -+ setVersion:(int)aVersion -{ - class_set_version(self, aVersion); - return self; -} -@end - -/* The following methods were deprecated in GCC 4.6.0 and will be - removed in the next GCC release. -*/ - -@implementation Object (Deprecated) - -+ (int)streamVersion: (TypedStream*)aStream -{ - if (aStream->mode == OBJC_READONLY) - return objc_get_stream_class_version (aStream, self); - else - return class_get_version (self); -} - -// These are used to write or read the instance variables -// declared in this particular part of the object. Subclasses -// should extend these, by calling [super read/write: aStream] -// before doing their own archiving. These methods are private, in -// the sense that they should only be called from subclasses. - -- read: (TypedStream*)aStream -{ - (void) aStream; /* UNUSED */ - // [super read: aStream]; - return self; -} - -- write: (TypedStream*)aStream -{ - (void) aStream; /* UNUSED */ - // [super write: aStream]; - return self; + return object_getClass (self); } -- awake +- (BOOL)isEqual: (id)anObject { - // [super awake]; - return self; + return self == anObject; } @end