Add classes MLKLexicalEnvironment and MLKReadEvalPrintLoop.

1 files changed, 54 insertions, 0 deletions

diff --git a/MLKLexicalEnvironment.h b/MLKLexicalEnvironment.h
new file mode 100644
index 0000000..8d1300d
--- /dev/null
+++ b/MLKLexicalEnvironment.h
@@ -0,0 +1,54 @@
+/* -*- 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;
+
+
+@interface MLKLexicalEnvironment : NSObject
+{
+  MLKEnvironment *_variables;
+  MLKEnvironment *_functions;
+  MLKLexicalEnvironment *_parent;
+}
+
+-(MLKLexicalEnvironment *) initWithParent:(MLKLexicalEnvironment *)aContext
+                                variables:(NSDictionary *)vars
+                                functions:(NSDictionary *)handlers;
+
++(MLKLexicalEnvironment *) globalEnvironment;
+
+-(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