#9636: Function with type error accepted -------------------------------------+------------------------------------- Reporter: augustss | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: | Blocked By: None/Unknown | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by simonpj): So, to be concrete, if I write: {{{ foo :: Either (T a) a -> a foo (Right x) = x }}} then you would like `(foo (Right True))` to signal a type error. Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9636#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler