Function type synonym fails in pattern synonym
pattern Id :: a -> a
pattern Id x = xworks but
-- • Pattern synonym ‘Id’ has one argument
-- but its type signature has none
-- • In the declaration for pattern synonym ‘Id’
type Endo a = a -> a
pattern Id :: Endo a
pattern Id x = xTrac metadata
| Trac field | Value |
|---|---|
| Version | 8.0.1 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | Unresolved |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |