casting

1 files changed, 8 insertions, 0 deletions

diff --git a/ast.c b/ast.c
index 22d3181..9fa4f82 100644
--- a/ast.c
+++ b/ast.c
@@ -107,6 +107,11 @@ static void paren_destroy(struct paren_node* node) {
     free(node->expr_list);
 }
 
+static void cast_destroy(struct cast_node* node) {
+    expr_destroy(node->expr);
+    free(node->expr);
+}
+
 static void expr_destroy(struct expr_node* node) {
     switch (node->type) {
         case EXPR_INT_LIT:
@@ -133,6 +138,9 @@ static void expr_destroy(struct expr_node* node) {
         case EXPR_PAREN:
             paren_destroy(&node->inner.paren);
             break;
+        case EXPR_CAST:
+            cast_destroy(&node->inner.cast);
+            break;
     }
 }