Mutual block with interface and data type declaration doesn't type check

[pa-ba]

The following code fails type checking (with message "No such variable MkBar"):

mutual
  interface Foo s where
    foo : Bar
    foo = MkBar

  data Bar = MkBar

I am not sure whether this behaviour is intentional. However, the code can be made to type check by using a helper function that is added to the mutual block like this:

mutual
  interface Foo s where
    foo : Bar
    foo = mkBar

  data Bar = MkBar

  mkBar : Bar
  mkBar = MkBar

My expectation would be that either both or neither of the above two examples type checks.

[ahmadsalim]

Thanks for reporting the issue. My guess is that this is because interface headers are elaborated at a different stage/scope than their bodies, but it should nonetheless work.