#12523: Constructor info tables generated by GHCi don't return tagged pointers -------------------------------------+------------------------------------- Reporter: mniip | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: GHCi crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by simonpj): * cc: simonmar (added) Comment: Yes, tagging really is part of the return convention for data constructors, so I'm a bit surprised that GHCi gets away without it. Is `unsafeCoerce` really part of this? What happens for {{{ unX (X "foo") }}} or {{{ unX (id (X "foo")) }}} ? Why would it be different to what happens with `unsafeCoerce`? I'm adding Simon Marlow (king of GHCi) in cc. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12523#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler