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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 "MLKSymbol.h"
#import "runtime-compatibility.h"
#import <Foundation/NSString.h>
@implementation MLKSymbol
-(MLKSymbol *) initWithName:(id)aName package:(id)aPackage
{
self = [super init];
ASSIGN (name, aName);
ASSIGN (homePackage, aPackage);
real_identity = nil;
return self;
}
+(MLKSymbol *) symbolWithName:(id)aName package:(id)aPackage
{
return AUTORELEASE ([[self alloc] initWithName:aName package:aPackage]);
}
-(id) copyWithZone:(NSZone *)zone
{
MLKSymbol *copy = [MLKSymbol allocWithZone:zone];
ASSIGN (copy->name, name);
ASSIGN (copy->homePackage, homePackage);
if (real_identity)
ASSIGN (copy->real_identity, real_identity);
else
ASSIGN (copy->real_identity, self);
return copy;
}
-(NSString *) name
{
return name;
}
-(MLKPackage *) homePackage
{
return homePackage;
}
-(void) setHomePackage:(MLKPackage *)aPackage
{
ASSIGN (homePackage, aPackage);
}
-(NSString *) descriptionForLisp
{
// NOTE: Need to take *PRINT-GENSYM* into account.
//
// FIXME: This is wrong in more than one way.
return [NSString stringWithFormat:@"|%@::%@|", [homePackage name], name];
}
-(NSString *) description
{
return [NSString stringWithFormat:@"|%@::%@|", [homePackage name], name];
}
-(BOOL) isEqual:(id)object
{
if (object == self)
return YES;
if (!([object isKindOfClass:[MLKSymbol class]]))
return NO;
return ((((MLKSymbol *)object)->real_identity
? ((MLKSymbol *)object)->real_identity
: (MLKSymbol *)object)
== ((self->real_identity != nil
? self->real_identity
: self)));
}
-(unsigned) hash
{
if (real_identity)
return [real_identity hash];
else
return [super hash];
}
-(void) dealloc
{
RELEASE (name);
RELEASE (homePackage);
[super dealloc];
}
@end
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