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|
#!/usr/bin/perl
package MooseX::Role::Matcher;
use MooseX::Role::Parameterized;
use List::Util qw/first/;
use List::MoreUtils qw/any all/;
parameter default_match => (
is => 'ro',
isa => 'Str',
);
role {
my $p = shift;
my $default = $p->default_match;
method _apply_to_matches => sub {
my $class = shift;
my $on_match = shift;
my @list = @{ shift() };
my @matchers = @_;
unshift @matchers, $default if (@_ % 2 == 1);
$on_match->(sub { $_->match(@matchers) }, @list);
};
method first_match => sub {
my $class = shift;
$class->_apply_to_matches(\&first, @_);
};
method grep_matches => sub {
my $class = shift;
my $grep = sub { my $code = shift; grep { $code->() } @_ };
$class->_apply_to_matches($grep, @_);
};
method any_match => sub {
my $class = shift;
$class->_apply_to_matches(\&any, @_);
};
method all_match => sub {
my $class = shift;
$class->_apply_to_matches(\&all, @_);
};
method _match => sub {
my $self = shift;
my $value = shift;
my $seek = shift;
return !defined $value if !defined $seek;
return 0 if !defined $value;
return $value =~ $seek if ref($seek) eq 'Regexp';
return $seek->($value) if ref($seek) eq 'CODE';
if (ref($seek) eq 'ARRAY') {
for (@$seek) {
return 1 if $self->_match($value => $_);
}
}
return $value eq $seek;
};
method match => sub {
my $self = shift;
my %args = @_;
# All the conditions must be true for true to be returned. Return
# immediately if a false condition is found.
for my $matcher (keys %args) {
my ($invert, $name) = $matcher =~ /^(!)?(.*)$/;
my $value = $self->can($name) ? $self->$name : undef;
my $seek = $args{$matcher};
my $matched = $self->_match($value => $seek) ? 1 : 0;
if ($invert) {
return 0 if $matched;
}
else {
return 0 unless $matched;
}
}
return 1;
};
};
no MooseX::Role::Parameterized;
1;
|
