data::util::curry(3pm) [debian man page]

Data::Util::Curry(3pm)					User Contributed Perl Documentation				    Data::Util::Curry(3pm)

NAME

       Data::Util::Curry - Curries functions and methods

SYNOPSIS

	       use feature 'say';
	       use Data::Util qw(curry);

	       sub sum{
		       my $total = 0;
		       for my $x(@_){
			       $total += $x;
		       }
		       return $total;
	       }

	       # placeholder "" indicates a subscript of the arguments
	       say curry(&add, , 42)->(10); # 52

	       # placeholder "*_" indicates all the arguments
	       say curry(&add, *_)->(1 .. 10); # 55

	       # two subscripts and the rest of the arguments
	       say curry(&add, *_, 1, )->(1 .. 5); # 3 + 4 + 5 + 1 + 2

DESCRIPTION

       (todo)

EXAMPLES

   Currying Functions
	       curry(&f, , 2)->(1); # f(1, 2)
	       curry(&f, 3, )->(4); # f(3, 4)
	       curry(&f, *_)->(5, 6); # f(5, 6)

	       curry(&f, , 1, *_)->(1, 2, 3, 4); # f(1, 2, 3, 4)
	       curry(&f, *_, , 1)->(1, 2, 3, 4); # f(3, 4, 1, 2)

   Currying Methods
	       curry($obj, 'something', *_)->(1, 2);  # $obj->something(1, 2)

	       curry($obj, 'something',
		       foo => ,
		       bar => 1)->(1, 2); # $obj->something(foo => 1, bar => 2)

	       curry(, 'something', 1)->($obj, 42);	 # $obj->something(42)
	       curry($obj, , *_)->('something', 1, 2); # $obj->something(1, 2)

   Argument Semantics
	       sub incr{ $_[0]++ }

	       my $i = 0;
	       curry(&incr, )->($i); # $i++
	       curry(&incr, *_)->($i); # $i++
	       curry(&incr, $i)->();	# $i++

SEE ALSO

       Data::Util.

perl v5.14.2							    2011-10-20						    Data::Util::Curry(3pm)