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/* -*- mode: objc; coding: utf-8 -*- */
/* Étoilisp/Mulklisp, a Common Lisp subset for the Étoilé runtime.
* Copyright (C) 2008 Matthias Andreas Benkard.
*
* This program 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 3 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#import "MLKLispValue.h"
#import <Foundation/NSObject.h>
@class MLKPackage;
@interface MLKSymbol : MLKLispValue <NSCopying>
{
NSString *name;
MLKPackage *homePackage;
MLKSymbol *real_identity;
}
-(MLKSymbol *) initWithName:(id)aName package:(id)aPackage;
-(NSString *) name;
-(MLKPackage *) homePackage;
-(void) setHomePackage:(MLKPackage *)aPackage;
-(NSString *)description;
-(NSString *)descriptionForLisp;
// PLEASE DO NOT USE THIS.
//
// Symbols should never be copied. MLKSymbol needs to implement
// NSCopying as well as suitable version of isEqual: so that symbols can
// be used as dictionary keys. Don't call -copy on a symbol manually,
// please.
-(id) copyWithZone:(NSZone *)zone;
// PLEASE DO NOT USE THIS.
//
// It uses an ugly hack for determining symbol identity in the face of
// copying. (The hack is called real_identity and it's an ivar of this
// class.) See the comment above copyWithZone: for why it even exists.
-(BOOL) isEqual:(id)object;
-(unsigned) hash;
-(void) dealloc;
@end
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