#14662: Partial type signatures + mutual recursion = confusion -------------------------------------+------------------------------------- Reporter: goldfire | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by goldfire): Interestingly, this was changed '''three days ago'''. Now, in HEAD, Example 3 and Example 4 are rejected with {{{ • Can't quantify over ‘b’ bound by the partial type signature: g :: forall b. _ -> b -> b }}} I think this is an improvement in behavior, but it underscores how squishy this all is. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14662#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler