Path::IsDev::Result(3) User Contributed Perl Documentation Path::IsDev::Result(3)

Path::IsDev::Result - Result container

version 1.001003

use Path::IsDev::Result;
my $result = Path::IsDev::Result->new( path => '/some/path/that/exists' ):
if ( $heuristcset->matches( $result ) ) {
    print Dumper($result);
}

This is a reasonably new internal component for Path::IsDev.

Its purpose is to communicate state between internal things, and give some sort of introspectable context for why things happened in various places without resorting to spamming debug everywhere.

Now instead of turning on debug, as long as you can get a result, you can inspect and dump that result at the point you need it.

Call this method from a heuristic to record checking of the heuristic and the relevant meta-data.

$result->add_reason( $heuristic, $matchvalue, $reason_summary, \%contextinfo );

For example:

sub Foo::matches  {
    my ( $self , $result_object ) = @_;
    if ( $result_object->path->child('bar')->exists ) {
        $result_object->add_reason( $self, 1, "child 'bar' exists" , {
            child => 'bar',
            'exists?' => 1,
            child_path => $result_object->path->child('bar')
        });
        $result_object->result(1);
        return 1;
    }
    return;
}

Note that here, $matchvalue should be the result of the relevant matching logic, not the global impact.

For instance, "excludes" compositions should still add reasons of "$matchvalue == 1", but they should not set "$result_object->result(1)". ( In fact, setting "result" is the job of the individual heuristic, not the matches that are folded into it )

Kent Fredric <kentnl@cpan.org>

This software is copyright (c) 2017 by Kent Fredric <kentfredric@gmail.com>.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

2022-05-29 perl v5.36.0