-dump-hi includes more information that --show-iface
Given a file:
main = print 1
If you compile and show the interface with:
$ ghc -ddump-to-file -ddump-hi Main.hs $ ghc --show-iface Main.hi > Main.show-iface
I would expect
Main.dump-hi (created by the first line) and
Main.show-iface (created by the second line) to contain roughly the same contents. However, the second form of dumping only shows a subset of the first. As an example:
import -/ base-188.8.131.52:Prelude 80c668cb99fbafebd524c5e897f8c982
import -/ Prelude 80c668cb99fbafebd524c5e897f8c982
Importantly (and for what I'm trying to do, frustratingly) the second form lacks the package name. I would have expected both versions to be roughly the same. I use the information from the
.hi files in Weeder. In old versions I relied on the fact Stack passed
-ddump-hi. Now that it doesn't I want to manually dump the
.hi files after the fact, which is not as easy as I hoped.
GHC 8.6.5 x86_64 on Windows.