/usr/share/perl5/Catmandu/Fix/Condition/exists.pm is in libcatmandu-perl 0.9206-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | package Catmandu::Fix::Condition::exists;
use Catmandu::Sane;
use Moo;
use Catmandu::Fix::Has;
with 'Catmandu::Fix::Condition';
has path => (fix_arg => 1);
sub emit {
my ($self, $fixer, $label) = @_;
my $path = $fixer->split_path($self->path);
my $key = pop @$path;
my $str_key = $fixer->emit_string($key);
my $perl = $fixer->emit_walk_path($fixer->var, $path, sub {
my $var = shift;
my $perl = "if (";
if ($key =~ /^\d+$/) {
$perl .= "is_hash_ref(${var}) && exists(${var}->{${str_key}}) || is_array_ref(${var}) && \@{${var}} > ${key}";
} else {
$perl .= "is_hash_ref(${var}) && exists(${var}->{${str_key}})";
}
$perl .= ") {";
$perl .= $fixer->emit_fixes($self->pass_fixes);
$perl .= "last $label;";
$perl .= "}";
$perl;
});
$perl .= $fixer->emit_fixes($self->fail_fixes);
$perl;
}
=head1 NAME
Catmandu::Fix::Condition::exists - only execute fixes if the path exists
=head1 SYNOPSIS
# uppercase the value of field 'foo' if the field 'oogly' exists
if exists(oogly)
upcase(foo) # foo => 'BAR'
end
# inverted
unless exists(oogly)
upcase(foo) # foo => 'bar'
end
=head1 SEE ALSO
L<Catmandu::Fix>
=cut
1;
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