#9693: Reloading GHCi with Template Haskell names can panic GHC -------------------------------------+------------------------------------- Reporter: maxs | Owner: Type: bug | Status: infoneeded Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: Operating System: | Architecture: Unknown/Multiple Unknown/Multiple | Difficulty: Unknown Type of failure: GHC | Blocked By: rejects valid program | Related Tickets: Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Changes (by goldfire): * status: new => infoneeded Comment: I can't reproduce this problem. When I load your original files (that is, with `newName`, not `mkName`), I get this: {{{ Duplicate exact Name ‘X’ Probable cause: you used a unique Template Haskell name (NameU), perhaps via newName, but bound it multiple times If that's it, then -ddump-splices might be useful }}} The error seems reasonable to me: the name is bound both as a type and as a data constructor. I'm also on GHC 7.8.3 on a Mac. Can you try again to reproduce the problem? Maybe your GHCi state had something else going on... perhaps a `ghci.conf` file? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9693#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler