diff options
Diffstat (limited to 'MLKEnvironment.h')
| -rw-r--r-- | MLKEnvironment.h | 9 |
1 files changed, 7 insertions, 2 deletions
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 |