Valid hole fits process is too slow to be enabled by default
I am hearing anecdotal evidence that people are suggesting to turn on
-fno-valid-hole-fits as typed holes causes compilation time to double (from 2s to 4s).
@trac-isovector also reports
i have a 140 line file with 17 modules imported:
doc <- fromJust <$> #getDomDocument pagetransformed to
doc <- _ <$> #getDomDocument pagetakes > 1 minute in ghci with the default settings
People just use
() rather than
_ takes too long. I think we either have to make it more efficient or disable the feature by default.