[Haskell-cafe] Re: Point-free style (Was: Things to avoid)
matthew at alledora.co.uk
Fri Feb 11 05:42:23 EST 2005
David Menendez wrote:
> Here's another one:
> addTriple (s,p,o) = addArc s p o . addNode s . addNode p . addNode o
> I like to think it's pretty straightforward.
> I suppose you could argue that these are examples of "semi-point-free"
> style, or something. Certainly, I wouldn't want to rewrite tsArcFwd or
> addTriple into fully point-free style.
This is closest to where my code tends to end up. I like some of the
implications of point-free style, but I generally tend to avoid
point-free stuff involving functions which take more than one argument -
in that case, I'll generally make at least one of the arguments
explicit. It helps me write the function and makes the code more
self-documenting - at least to my mind.
Of course, point-free code becomes much clearer with a nice type
signature. As does pretty much all other Haskell code.
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