Allow undefined --- as a struct field default value.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/checker.cpp b/src/checker.cpp
index 1cbf5db40..cdc9bf3b4 100644
--- a/src/checker.cpp
+++ b/src/checker.cpp
@@ -166,7 +166,9 @@ bool is_operand_value(Operand o) {
 bool is_operand_nil(Operand o) {
 	return o.mode == Addressing_Value && o.type == t_untyped_nil;
 }
-
+bool is_operand_undef(Operand o) {
+	return o.mode == Addressing_Value && o.type == t_untyped_undef;
+}
 
 struct BlockLabel {
 	String   name;