1 files changed, 3 insertions, 0 deletions
diff --git a/bootstrap/parse.c b/bootstrap/parse.c
index fd38860..b16ef13 100644
--- a/bootstrap/parse.c
+++ b/bootstrap/parse.c
@@ -1317,6 +1317,9 @@ pexpostfix(struct parser *P) {
             fatal(P, arg.span,
                   "call argument #%d type mismatch (%t, expected %t)",
                   i, arg.ty, ty->fn.params.d[i]);
+         if (i >= n && (arg.ty->t == TYstruct || arg.ty->t == TYunion || arg.ty->t == TYeunion || arg.ty->t == TYslice)) {
+            fatal(P, arg.span, "cannot pass aggregate value as variadic argument");
+         }
 
          ++i;
          vec_push(&args, arg);