id	summary	reporter	owner	description	type	status	priority	milestone	version	resolution	keywords	cc
207	haddock: internal error: spliceURL UnhelpfulSpan	selinger		"With Haddock 2.8, I got this error message occasionally; with Haddock 2.9.4, I get it *all the time*. Minimal example attached.

The problem seems to arise when one has some function without a type signature, and the --source-entity option is used. The old behavior (2.8) was to ignore such a function. The new behavior is to generate the type signature, but then fail with the above error message.

To reproduce: 

haddock -h HaddockBug.hs --source-entity=HaddockBug.html#line-%L

Obviously, the above error message was not intended for end users; ""Missing type signature"" or ""Can't find this line in your file"" would be a better error message. Still better would be not to produce an error at all.
"	defect	new	major		2.9.4