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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/NSSet.h>
@class MLKEnvironment, MLKLexicalEnvironment, MLKSymbol, NSLinkedList, NSSet,
NSMutableDictionary, NSString, MLKCons, MLKFuncallable;
@interface MLKLexicalContext : MLKLispValue
{
NSArray *_knownMacros;
NSArray *_knownSymbolMacros;
MLKEnvironment *_macros;
MLKEnvironment *_symbolMacros;
MLKEnvironment *_goTags;
NSMutableSet *_functions;
NSMutableSet *_variables;
id _declarations;
MLKLexicalContext *_parent;
}
+(void) initialize;
-(MLKLexicalContext *) initWithParent:(MLKLexicalContext *)aContext
variables:(NSSet *)vars
functions:(NSSet *)functions
goTags:(NSDictionary *)goTags
macros:(NSDictionary *)macros
symbolMacros:(NSDictionary *)symbolMacros
declarations:(id)declarations;
+(MLKLexicalContext *) globalContext;
-(BOOL) symbolNamesFunction:(MLKSymbol *)symbol;
-(BOOL) symbolNamesMacro:(MLKSymbol *)symbol;
-(BOOL) symbolNamesSymbolMacro:(MLKSymbol *)symbol;
-(id) macroForSymbol:(MLKSymbol *)symbol;
-(void) setMacro:(MLKFuncallable *)function forSymbol:(MLKSymbol *)symbol;
-(id) symbolMacroForSymbol:(MLKSymbol *)symbol;
-(void) setSymbolMacro:(MLKFuncallable *)function forSymbol:(MLKSymbol *)symbol;
-(id) goTagForSymbol:(MLKSymbol *)symbol;
// FIXME?
//-(MLKLexicalEnvironment *) instantiateWithVariables:(NSDictionary *)variables
// functions:(NSDictionary *)functions;
-(void) addVariable:(MLKSymbol *)symbol;
-(void) addFunction:(MLKSymbol *)symbol;
-(BOOL) variableIsLexical:(MLKSymbol *)symbol;
-(void) dealloc;
@end
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