tc141.stderr 1.33 KB
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tc141.hs:11:12:
    You cannot bind scoped type variable `a'
      in a pattern binding signature
    In the pattern: p :: a
    In the pattern: (p :: a, q :: a)
    In a pattern binding: (p :: a, q :: a) = x

tc141.hs:11:31:
    Couldn't match expected type `a1' with actual type `a'
      `a1' is a rigid type variable bound by
           an expression type signature: a1 at tc141.hs:11:31
      `a' is a rigid type variable bound by
          the inferred type of f :: (a, a) -> (t, a) at tc141.hs:11:1
    In the expression: q :: a
    In the expression: (q :: a, p)
    In the expression: let (p :: a, q :: a) = x in (q :: a, p)

tc141.hs:13:13:
    You cannot bind scoped type variable `a'
      in a pattern binding signature
    In the pattern: y :: a
    In a pattern binding: y :: a = a
    In the expression:
      let y :: a = a in
      let
        v :: a
        v = b
      in v

tc141.hs:15:18:
    Couldn't match expected type `a2' with actual type `t'
      `a2' is a rigid type variable bound by
           the type signature for v :: a2 at tc141.hs:14:19
      `t' is a rigid type variable bound by
          the inferred type of g :: a -> t -> a1 at tc141.hs:13:1
    In the expression: b
    In an equation for `v': v = b
    In the expression:
      let
        v :: a
        v = b
      in v