#14624: HEAD panic in ghc:DsForeign: toCType -------------------------------------+------------------------------------- Reporter: tianxiaogu | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.2.2 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: Compile-time | (amd64) crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * cc: hvr (added) Comment: That being said, I'm not terribly familiar with what requirements the `capi` calling convention imposes on its argument and result types. Is there a specification for this somewhere? All I found was [https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/ffi- chap.html?highlight=capiffi#the-capi-calling-convention this terse section] of the users' guide on `CApiFFI`, which doesn't formalize what types are accepted, much less what should happen if an //incorrect// type is provided, as what appears to be happening here. cc'ing hvr, who might have some thoughts on this. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14624#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler