Implement basic reference counting for arrays, which so they

get freed when not in use anymore.

1 files changed, 15 insertions, 0 deletions

diff --git a/symbol.c b/symbol.c
index 55e3f15..294d9a4 100644
--- a/symbol.c
+++ b/symbol.c
@@ -38,6 +38,21 @@ newsymtab(void)
 	return tab;
 }
 
+void
+freesymtab(Symtab *tab)
+{
+	print("Freeing symtab\n");
+	int i;
+	for(i = 0; i < tab->nsyms; i++){
+		Symbol *s = tab->syms[i];
+		if(s->undefined == 0 && s->value.tag == ArrayTag)
+			freearray(s->value.array);
+	}
+	free(tab->syms);
+	free(tab);
+	print("Done freeing symtab\n");
+}
+
 vlong
 globalIO(void)
 {