add error for stray, incorrect constructors

2025-10-10 09:03:25 -07:00
parent 78b9f958de
commit 2a5e5ae4f5
3 changed files with 20 additions and 30 deletions
--- a/tests/BadAlt.newt.fail
+++ b/tests/BadAlt.newt.fail
@@ -0,0 +1,10 @@
+*** Process tests/BadAlt.newt
+module Prelude
+module BadAlt
+ERROR at tests/BadAlt.newt:(6, 9): Prelude._:<_ not a constructor for (Prelude.List Prim.Int)
+  
+  foo : List Int → Int
+  foo (xs :< x) = x
+          ^
+
+Compile failed