template-haskell

Getting associated type synonyms with template Haskell

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Can Template Haskell find out the names and/or the declarations of the associated type synonyms declared in a type class? I expected reify would do what I want, but it doesn’t seem to provide all the necessary information. It works for getting function type signatures: % ghci GHCi, version 7.8.3: http://www.haskell.org/ghc/ 😕 for help … … Read more

What’s so bad about Template Haskell?

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It seems that Template Haskell is often viewed by the Haskell community as an unfortunate convenience. It’s hard to put into words exactly what I have observed in this regard, but consider these few examples Template Haskell listed under “The Ugly (but necessary)” in response to the question Which Haskell (GHC) extensions should users use/avoid? … Read more