On 21 February 2013 08:56, Felipe Almeida Lessa
Hey!
GHC warns me about unused definitions in a module. However, is it possible to warn me about unused definitions in a package?
For example, suppose that module A exports function f and that module B uses A.f (everything on a single package). However, after some time B stops using A.f. Is there a way of receiving a warning saying that "A exports f but no other module uses it."?
(I know that this warning wouldn't be useful for libraries, since their whole point is to export things.)
My (getting-long-in-the-tooth-and-could-do-with-a-rewrite) SourceGraph package does identify these definitions. As for GHC warning about it, I wonder if maybe that's a better role for Cabal as it knows which modules are public vs private (and even libraries can have exported definitions that aren't used from non-exported modules).
Cheers!
-- Felipe.
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