From a6955cf42df675518514e4da54f36174de9eb736 Mon Sep 17 00:00:00 2001
From: Matthias Andreas Benkard <matthias@benkard.de>
Date: Thu, 12 Jun 2008 19:44:53 +0200
Subject: Simplify MLKEnvironment.

---
 MLKEnvironment.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'MLKEnvironment.h')

diff --git a/MLKEnvironment.h b/MLKEnvironment.h
index fe2be16..b40ea5a 100644
--- a/MLKEnvironment.h
+++ b/MLKEnvironment.h
@@ -3,12 +3,13 @@
 
 #import "MLKLispValue.h"
 
-@class NSMutableDictionary, MLKLinkedList, MLKSymbol;
+@class NSMutableDictionary, MLKSymbol;
 
 
 @interface MLKEnvironment : MLKLispValue
 {
-  MLKLinkedList *_bindings;
+  MLKEnvironment *_parent;
+  NSMutableDictionary *_bindings;
 }
 
 -(MLKEnvironment *) init;
@@ -20,4 +21,8 @@
 -(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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