/* Interface for the Object class for Objective-C.
- Copyright (C) 1993, 1994, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1993-2020 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
-Free Software Foundation; either version 2, or (at your option) any
+Free Software Foundation; either version 3, or (at your option) any
later version.
GCC is distributed in the hope that it will be useful, but WITHOUT
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
License for more details.
-You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
-/* As a special exception, if you link this library with files compiled
- with GCC to produce an executable, this does not cause the resulting
- executable to be covered by the GNU General Public License. This
- exception does not however invalidate any other reasons why the
- executable file might be covered by the GNU General Public License. */
#ifndef __object_INCLUDE_GNU
#define __object_INCLUDE_GNU
-#include <objc/objc.h>
-#include <objc/typedstream.h>
-
-/*
- * All classes are derived from Object. As such,
- * this is the overhead tacked onto those objects.
- */
-@interface Object
-{
- Class isa; /* A pointer to the instance's class structure */
-}
-
- /* Initializing classes and instances */
-+ initialize;
-- init;
-
- /* Creating, freeing, and copying instances */
-+ new;
-+ alloc;
-- free;
-- copy;
-- shallowCopy;
-- deepen;
-- deepCopy;
-
- /* Identifying classes */
-- (Class)class;
-- (Class)superClass;
-- (MetaClass)metaClass;
-- (const char *)name;
-
- /* Identifying and comparing objects */
-- self;
-- (unsigned int)hash;
-- (BOOL)isEqual:anObject;
-- (int)compare:anotherObject;
-
- /* Testing object type */
-- (BOOL)isMetaClass;
-- (BOOL)isClass;
-- (BOOL)isInstance;
-
- /* Testing inheritance relationships */
-- (BOOL)isKindOf:(Class)aClassObject;
-- (BOOL)isMemberOf:(Class)aClassObject;
-- (BOOL)isKindOfClassNamed:(const char *)aClassName;
-- (BOOL)isMemberOfClassNamed:(const char *)aClassName;
-
- /* Testing class functionality */
-+ (BOOL)instancesRespondTo:(SEL)aSel;
-- (BOOL)respondsTo:(SEL)aSel;
+#include "objc.h"
- /* Testing protocol conformance */
-- (BOOL)conformsTo:(Protocol*)aProtocol;
-
- /* Introspection */
-+ (IMP)instanceMethodFor:(SEL)aSel;
-- (IMP)methodFor:(SEL)aSel;
-+ (struct objc_method_description *)descriptionForInstanceMethod:(SEL)aSel;
-- (struct objc_method_description *)descriptionForMethod:(SEL)aSel;
-
- /* Sending messages determined at run time */
-- perform:(SEL)aSel;
-- perform:(SEL)aSel with:anObject;
-- perform:(SEL)aSel with:anObject1 with:anObject2;
-
- /* Forwarding */
-- (retval_t)forward:(SEL)aSel :(arglist_t)argFrame;
-- (retval_t)performv:(SEL)aSel :(arglist_t)argFrame;
-
- /* Posing */
-+ poseAs:(Class)aClassObject;
-- (Class)transmuteClassTo:(Class)aClassObject;
-
- /* Enforcing intentions */
-- subclassResponsibility:(SEL)aSel;
-- notImplemented:(SEL)aSel;
-- shouldNotImplement:(SEL)aSel;
+#ifdef __cplusplus
+extern "C" {
+#endif
- /* Error handling */
-- doesNotRecognize:(SEL)aSel;
-- error:(const char *)aString, ...;
+/* The Object class is a very minimal root class included with the
+ runtime. It is used as superclass for the two classes included
+ with the runtime, Protocol and NXConstantString.
- /* Archiving */
-+ (int)version;
-+ setVersion:(int)aVersion;
-+ (int)streamVersion: (TypedStream*)aStream;
+ Because Objective-C allows multiple root classes, you can define
+ your own root class, different from Object.
-- read: (TypedStream*)aStream;
-- write: (TypedStream*)aStream;
-- awake;
+ In particular, a Foundation library (such as GNUstep Base) is
+ expected to provide its own root class (typically called NSObject),
+ fully integrated with the library's own high-level features. It is
+ expected that you should always use and interact with NSObject, and
+ mostly ignore Object. */
+/* All classes are derived from Object. As such, this is the overhead
+ tacked onto those objects. */
+@interface Object
+{
+ Class isa; /* A pointer to the instance's class structure. */
+}
+- (Class)class;
+- (BOOL)isEqual: (id)anObject;
@end
+#ifdef __cplusplus
+}
+#endif
+
#endif
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