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Have you tried prototypes?

Briefly. I don't fully grok the try/catch example in perldoc perlsub, so I may be missing something, but my failed attempts look like:

#! /usr/bin/perl use strict; use warnings; sub curry(&@) { my ($fn, @args) = @_; return sub { $fn->(@args, @_); } } &curry(+, 2)->();
which of course does not compile. (There's also the issue that in order to really do higher-order functions with prototypes, I'd need to somehow examine fn's prototype and preserve it in the returned sub.)

I'm thinking that a source filter might help, turning builtins used as values into anonymous subs, but I don't know very much about source filters — I'm not even sure that they do what I think they do.

--
Yours in pedantry,
F o x t r o t U n i f o r m

"Anything you put in comments is not tested and easily goes out of date." -- tye


In reply to Re^2: Why Perl Is Not My Favourite Functional Programming Language by FoxtrotUniform
in thread A mini-language for sequences (part 1) by tmoertel

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