Since symbols now have pointers to their values, we don't need the symbol.undefined field anymore

1 files changed, 2 insertions, 5 deletions

diff --git a/eval.c b/eval.c
index b7515b1..ea7e84f 100644
--- a/eval.c
+++ b/eval.c
@@ -141,7 +141,7 @@ lookup(Datum *var)
 	traceprint("VAR LOOKUP %S\n", var->name);
 	Symbol *symbol = getsym(var->name, 0);
 
-	if(symbol->undefined){
+	if(symbol->value == nil && symbol->getfn == nil){
 		Rune *msg = runesmprint("Undefined name: %S", var->name);
 		throwerror(msg, EValue);
 	}
@@ -259,12 +259,9 @@ assign(Datum *left, Datum *right)
 		else{
 			/* re-assign the symbol to one that is sure to be local. This enables shadowing */
 			symbol = getsym(symbol->name, 1);
-
-			if(symbol->undefined == 0)
-				freedatum(symbol->value);
+			freedatum(symbol->value);
 			symbol->value = right;
 			incdatumref(right);
-			symbol->undefined = 0;
 			if(symbol->value->tag == ArrayTag)
 				symbol->value->array->stranded = 0;
 		}