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/* -*- mode: objc; coding: utf-8 -*- */
/* Toilet Lisp, 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 "MLKBinding.h"
#import "MLKEnvironment.h"
#import "MLKSymbol.h"
#import <Foundation/NSObject.h>
#import <Foundation/NSDictionary.h>
#import <Foundation/NSSet.h>
#import <Foundation/NSString.h>
@interface MLKDynamicContext : NSObject
{
MLKEnvironment *_conditionHandlers;
MLKEnvironment *_restarts;
NSSet *_catchTags;
MLKEnvironment *_environment;
MLKEnvironment *_activeHandlerEnvironment; // needed for the Condition Firewall
MLKDynamicContext *_parent;
}
+(void) initialize;
-(MLKDynamicContext *) initWithParent:(MLKDynamicContext *)aContext
variables:(NSDictionary *)vars
handlers:(NSDictionary *)handlers
restarts:(NSDictionary *)restarts
catchTags:(NSSet *)catchTags
activeHandlerEnvironment:(MLKEnvironment *)handlerEnv;
+(MLKDynamicContext *) globalContext;
-(MLKDynamicContext *) pushContext;
+(MLKDynamicContext *) currentContext;
+(MLKDynamicContext *) popContext;
-(MLKEnvironment *) environment;
-(id) findRestart:(MLKSymbol *)symbol;
-(id) findHandler:(MLKSymbol *)symbol;
-(BOOL) catchTagIsEstablished:(id)tag;
-(id) valueForSymbol:(MLKSymbol *)symbol;
-(void) setValue:(id)value forSymbol:(MLKSymbol *)symbol;
-(void) addValue:(id)value forSymbol:(MLKSymbol *)symbol;
-(void) addBindingForSymbol:(MLKSymbol *)symbol;
-(MLKBinding *) bindingForSymbol:(MLKSymbol *)symbol;
-(BOOL) boundp:(MLKSymbol *)symbol;
-(void) makunbound:(MLKSymbol *)symbol;
-(void) dealloc;
@end
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