#7937: Misleading "Precedence parsing error" when using an undefined operator -----------------------------+---------------------------------------------- Reporter: ktvoelker | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.6.3 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: None/Unknown | Blockedby: Blocking: | Related: #2993 -----------------------------+---------------------------------------------- I was using QuickCheck and wrote something like this: a > 0 ==> a == b But I hadn't imported (==>), and I got an error about mixing two operators with the same fixity (the two comparisons). This error was misleading, since once I imported ==>, which has a lower fixity, there was no problem. I have a complete example file to attach. This might be identical to #2993, but the situation there was not quite the same, so I am filing a new bug rather than reopening it. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7937 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler