Ticket #1792 (closed bug: fixed)
-ddump-minimal-imports breaks qualified imports (import...as)
|Reported by:||guest||Owned by:|
|Keywords:||Cc:||aslatter@…, gwern0@…, fasta|
|Type of failure:||Difficulty:||Unknown|
|Test Case:||T1792_imports||Blocked By:|
Description (last modified by simonpj) (diff)
When using the -ddump-minimal-imports option on a Haskell file, it breaks qualified imports.
Ie, suppose one has a line in a file thus:
import qualified Data.ByteString as B (putStr, readFile)
Using -ddump-minimal-imports will give you something like this:
import Data.ByteString(B.putStr, B.readFile)
There are 3 things wrong here:
- putStr and readFile should not be renamed thus, as obviously Data.ByteString has nothing under those names
- Data.ByteString is no longer being imported under a different name, so all function uses relying on B.putStr etc. will break
- Finally, it's just ugly to have no spaces between the last letter of the module's name and the opening parenthesis.
I see this behavior under GHC 6.6.1, and asl of #haskell tells me he duplicated the import problem using GHCi version 188.8.131.5271019.