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/* -*- mode: objc; coding: utf-8 -*- */
/* Copyright 2008, Matthias Benkard. */
#import "MLKLispValue.h"
@class NSMutableDictionary, MLKSymbol;
@interface MLKEnvironment : MLKLispValue
{
MLKEnvironment *_parent;
NSMutableDictionary *_bindings;
}
-(MLKEnvironment *) init;
-(MLKEnvironment *) initWithParent:(MLKEnvironment *)parent;
-(MLKEnvironment *) initWithBindings:(NSDictionary *)bindings;
-(MLKEnvironment *) initWithParent:(MLKEnvironment *)parent bindings:(NSDictionary *)bindings;
-(void) addBindings:(NSDictionary *)bindings;
-(void) addBinding:(MLKSymbol *)symbol to:(id)value;
-(void) setBinding:(MLKSymbol *)symbol to:(id)value;
-(id) valueForBinding:(MLKSymbol *)symbol;
// Private methods.
-(void) setBinding:(MLKSymbol *)symbol to:(id)value inEnvironment:(MLKEnvironment *)env;
-(id) valueForBinding:(MLKSymbol *)symbol inEnvironment:(MLKEnvironment *)env;
@end
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