package AutoCurry;
require v5.6.1;
use Attribute::Handlers::Prospective;
sub UNIVERSAL::curry : ATTR(CODE,RAWDATA) {
my ($package, $symbol, $referent, $attr, $data, $phase) = @_;
my $num = () = $data =~ /(\$)/g;
*{"$package".'::'.*{$symbol}{NAME}} = sub {
if (@_ < $num) {
my @x = @_;
return sub { $referent->(@x, @_ ) };
}
$referent->(@_);
};
}
1;
__END__
#############
demo.pl
#############
#!perl
use strict;
use warnings;
use AutoCurry;
sub foo : curry($$$) {
print "Hello @_\n";
};
foo( 'a', 'b', 'c' );
my $ref = foo('d','e');
$ref->('f');
$ref->('g');
Obviously, improvements can be made, but I think this does what is desired. There is a slight performance penalty, but it's not bad at all.
Being right, does not endow the right to be rude; politeness costs nothing. Being unknowing, is not the same as being stupid. Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence. Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|