`default` declaration doesn't allow higher-kinded types
Since we now have #10971 (closed), I would expect the following to work:
{-# LANGUAGE ExtendedDefaultRules #-}
module Bug where
default (Maybe, [])
But it doesn't. Sadly, the default default list contains []
, but the user can never set this.
Fix on the way.
Trac metadata
Trac field | Value |
---|---|
Version | 8.1 |
Type | Bug |
TypeOfFailure | OtherFailure |
Priority | normal |
Resolution | Unresolved |
Component | Compiler |
Test case | |
Differential revisions | |
BlockedBy | |
Related | |
Blocking | |
CC | |
Operating system | |
Architecture |