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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/>.
*/
#include <Foundation/NSObject.h>
@class MLKEnvironment, MLKSymbol, NSLinkedList,
NSMutableDictionary, NSString, NSSet;
@interface MLKLexicalEnvironment : NSObject
{
MLKEnvironment *_variables;
MLKEnvironment *_functions;
MLKLexicalEnvironment *_parent;
}
+(void) initialize;
-(MLKLexicalEnvironment *) initWithParent:(MLKLexicalEnvironment *)aContext
variables:(NSDictionary *)vars
functions:(NSDictionary *)handlers;
+(MLKLexicalEnvironment *) globalEnvironment;
-(NSSet *) variables;
-(NSSet *) functions;
-(id) valueForSymbol:(MLKSymbol *)symbol;
-(void) setValue:(id)value forSymbol:(MLKSymbol *)symbol;
-(void) addValue:(id)value forSymbol:(MLKSymbol *)symbol;
-(void) addBinding:(MLKSymbol *)symbol;
-(id) functionForSymbol:(MLKSymbol *)symbol;
-(void) setFunction:(id)value forSymbol:(MLKSymbol *)symbol;
-(void) addFunction:(id)value forSymbol:(MLKSymbol *)symbol;
-(BOOL) boundp:(MLKSymbol *)symbol;
-(void) makunbound:(MLKSymbol *)symbol;
-(BOOL) fboundp:(MLKSymbol *)symbol;
-(void) fmakunbound:(MLKSymbol *)symbol;
-(void) dealloc;
@end
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