#8799: Orientation of given `Coercible` constraints --------------------------------------------+------------------------------ Reporter: nomeata | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler (Type checker) | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: | Blocked By: | Related Tickets: #8555 --------------------------------------------+------------------------------ Comment (by rwbarton): FWIW this works (with !ScopedTypeVariables): {{{ let f :: forall a b. Coercible a b => b -> a; f = coerce (id :: a -> a) }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8799#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler