- -- TRY FOR EARLY EXIT
- -- We can't go for an early exit before this because we have to check
- -- for name clashes. Consider:
- --
- -- module A where module B where
- -- import B h = True
- -- f = h
- --
- -- Suppose I've compiled everything up, and then I add a
- -- new definition to module B, that defines "f".
- --
- -- Then I must detect the name clash in A before going for an early
- -- exit. The early-exit code checks what's actually needed from B
- -- to compile A, and of course that doesn't include B.f. That's
- -- why we wait till after the plusEnv stuff to do the early-exit.
-
- -- Check For early exit
- checkErrsRn `thenRn` \ no_errs_so_far ->
- if not no_errs_so_far then
- -- Found errors already, so exit now
- returnRn Nothing
- else
- checkEarlyExit this_mod `thenRn` \ (up_to_date, old_iface) ->
- if up_to_date then
- -- Interface files are sufficiently unchanged
- putDocRn (text "Compilation IS NOT required") `thenRn_`
- returnRn Nothing
- else
-
- -- PROCESS EXPORT LISTS
- exportsFromAvail this_mod exports all_avails gbl_env `thenRn` \ export_avails ->
-
-