mirror of
https://github.com/idris-lang/Idris2.git
synced 2024-12-22 19:21:39 +03:00
26 lines
621 B
Plaintext
26 lines
621 B
Plaintext
1/1: Building Issue794 (Issue794.idr)
|
|
Error: Impossible pattern gives an error:
|
|
Can't solve constraint between: ?_ ++ [?_] and ?x :: ?xs.
|
|
|
|
Issue794.idr:15:7--15:17
|
|
11 | empty Empty impossible
|
|
12 |
|
|
13 |
|
|
14 | snoc : SnocList (x :: xs) -> a
|
|
15 | snoc (Snoc _ _ _) impossible
|
|
^^^^^^^^^^
|
|
|
|
Error: empty is not covering.
|
|
|
|
Issue794.idr:10:1--10:32
|
|
06 | Empty : SnocList []
|
|
07 | Snoc : (x : a) -> (xs : List a) ->
|
|
08 | (rec : SnocList xs) -> SnocList (xs ++ [x])
|
|
09 |
|
|
10 | empty : SnocList (x :: xs) -> a
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
Missing cases:
|
|
empty (Snoc m m m)
|
|
|