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use strict;
use warnings;

package Test::Deep::Cmp;

use overload
	'&' => \&make_all,
	'|' => \&make_any,
	'""' => \&string,
	fallback => 1,
;

use Scalar::Util ();

sub import
{
	my $pkg = shift;

my $callpkg = caller();
	if ($callpkg =~ /^Test::Deep::/)
	{
		no strict 'refs';

push @{$callpkg."::ISA"}, $pkg;
	}
}

sub new
{
	my $pkg = shift;

my $self = bless {}, $pkg;

$self->init(@_);
	return $self;
}

sub init
{
}

sub make_all
{
	my ($e1, $e2) = @_;

return Test::Deep::all($e1, $e2);
}

sub make_any
{
	my ($e1, $e2) = @_;

return Test::Deep::any($e1, $e2);
}

sub cmp
{
	my ($a1, $a2, $rev) = @_;

($a1, $a2) = ($a2, $a1) if $rev;

return (overload::StrVal($a1) cmp overload::StrVal($a2));
}

sub string
{
	my $self = shift;

return overload::StrVal($self);
}

sub render_stack
{
	my $self = shift;
	my $var = shift;

return $var;
}

sub renderExp
{
	my $self = shift;

return $self->renderGot($self->{val});
}

sub renderGot
{
	my $self = shift;

return Test::Deep::render_val(@_);
}

sub reset_arrow
{
	return 1;
}

sub data
{
	my $self = shift;

return $Test::Deep::Stack->getLast;
}

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