Re: [Haskell-cafe] Template Haskell and Haddock

On Wed, Jul 31, 2013 at 08:29:18PM +0300, kudah wrote:

On Wed, 31 Jul 2013 15:18:32 +0200 "Jose A. Lopes" wrote:

...

Is there a way to access docstrings through Template Haskell ? For example, access the docstring of a function declaration ?

No, but I believe you can access comments and annotations using a ghc plugin. See https://github.com/thoughtpolice/strict-ghc-plugin for example.

By default, Haddock comments are not part of GHC's AST. You need to explicitly enable it (see e.g. [1]). For code that extracts all Haddock comments by using the GHC API, you can look at [2]. Cheers, Simon [1] https://github.com/sol/doctest-haskell/blob/master/src/GhcUtil.hs#L66 [2] https://github.com/sol/doctest-haskell/blob/master/src/Extract.hs