Make sure variables are as local as they need to be

1 files changed, 3 insertions, 0 deletions

diff --git a/eval.c b/eval.c
index a2d4d43..2e9a78e 100644
--- a/eval.c
+++ b/eval.c
@@ -229,6 +229,9 @@ assign(Datum left, Datum right)
 	if(left.symbol->setfn != nil)
 		left.symbol->setfn(right);
 	else{
+		/* re-assign the symbol to one that is sure to be local. This enables shadowing */
+		left.symbol = getsym(left.symbol->name, 1);
+
 		if(left.symbol->undefined == 0 && left.symbol->value.tag == ArrayTag)
 			freearray(left.symbol->value.array);
 		left.symbol->value = right;