#8184: Compiler panic in the presence of cyclic imports ---------------------------------------+----------------------------------- Reporter: parcs | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time crash | Unknown/Multiple Test Case: | Difficulty: Unknown Blocking: 910 | Blocked By: | Related Tickets: ---------------------------------------+----------------------------------- Comment (by parcs): Note that the panic doesn't occur when compiling each module separately in one-shot mode. The only difference seems to be that when compiled in one-shot mode, the worker for `thing` has the type {{{ #!haskell $wthing :: Int -> Int -> a }}} whereas when compiled in --make mode, it's {{{ #!haskell $wthing :: Y -> a }}} And judging by the panic message the compiler seems to attempt to apply `$wthing` to 2 Ints as if it had the former type. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8184#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler