#13801: Make -main-is work with {thing} from arbitrary installed packages -------------------------------------+------------------------------------- Reporter: SimonHengel | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * cc: ezyang (added) Comment: CCing ezyang due to his interest in package system concerns.
I haven't looked at any code, but my assumption is that GHC generates a driver module, similar to the one we have to write by hand if we don't use -main-is. Can somebody confirm (or negate) this?
I believe this is partially true. However, it's a bit tricky; we don't actually generate a module. We merely emit a binding which claims to be from another module when typechecking what the user says should be the main module. Have a look at `Note [Root-main Id]` for details. On the whole this sounds fairly easy to do. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13801#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler