Re: Re: Re: [Haskell-cafe] Why Exotic Languages Are Not Mainstream

On 8/11/06, Nicolas Frisby wrote:

Maybe it could also catch errors in my cafe emails...

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sqrs l = map sqr l where sqr x = x*x

Would you really want to write your emails in VisualStudio? ;-)

On 8/11/06, Nicolas Frisby wrote:

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Thanks for the pointers, but I think I'm looking for type information specific to my program. The VisualHaskell feature of which I am envious is the ability to tell me the type of any identifier in my program.

VisualHaskell can do this, *if* your program type checks. I'm hoping in a later version that ghc can be made more tolerant of errors for interactive use. Sometimes I want to know the type of something but I have an error (such as an unfinished line) somewhere else in the program. When this happens I often insert "undefined" in the trouble spots just so my program type checks. After I double check the type of something I go back to work and remove the undefined spots. This is okay, but for every feature I like about visual studio I miss two things from emacs (perhaps I just know it better). [snip]

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And, of course, I'd like this functionality in a multi-platform editor.

Look at the eclipse plugin eclipse-fp. The main things I get out of VisualHaskell these days are the automatic generation of my cabal files and the updated COM library. I find myself using emacs and ghci fairly often. Also, I'm getting to where I can hack my own cabal files without much hassle, so really I'm just using it for the updated COM library. Jason