[Haskell-beginners] emacs + ghc-mod + cabal repl

[Mateusz Kowalczyk]

On 19/03/14 12:22, Mateusz Kowalczyk wrote:
> On 19/03/14 10:53, Miguel Negrão wrote:
>> Em 18-03-2014 18:47, Miguel Negrão escreveu:
>>
>> Following that, a couple more questions:
>>
>> Is it possible to have the haddock help for functions displayed inside
>> emacs (no browser) ?
> 
> Not that I know of. GHCi doesn't support it (yet, maybe it will in the
> future) and Haskell interface files don't store this information so
> various tools can't get at it. I'm not aware of any tools that read the
> Haddock interface files and give you the docs that way. If
> someone/myself decides to go through with putting the Haddock strings
> into .hi files, reading documentation in your editor might become
> possible but I wouldn't hold my breath as it is completely in the ‘it'd
> be cool if we had this’ stage.

As a quick follow-up, it might be that Haddock itself will provide an
interface to its own interface files and then various tools (and GHCi)
can use that instead. Again, just ideas atm.

> 
>> How does one jump to the defition of a symbol ?
> 
> I use hasktags to generate the TAGS table and then use find-tag (bound
> to M-.) to jump to things. It works fine but it does tend to screw up
> sometimes. Of course it will only work if your definition is in the
> generated table, it won't do things like jumping to definitions in the
> libraries you use etc. I imagine that you could have a massive TAGS
> table generated from all your sources but I doubt it'd scale very well
> and would be close to impossible to maintain.
> 
> It'd be great if we had something like Agda, where all the source is
> available so we can jump to anything at all, but we don't.
> 
>>
>> thanks,
>> Miguel
>>
>>
>>
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> 
> 


-- 
Mateusz K.