File Coverage

blib/lib/Types/Encodings.pm

Criterion	Covered	Total	%
statement	20	20	100.0
branch			n/a
condition			n/a
subroutine	7	7	100.0
pod			n/a
total	27	27	100.0

package Types::Encodings;

use 5.008001;
use strict;
use warnings;

BEGIN {
	$Types::Encodings::AUTHORITY = 'cpan:TOBYINK';
	$Types::Encodings::VERSION   = '0.002';
}

use Type::Library -base, -declare => qw( Str Bytes Chars );
use Type::Utils;
use Types::Standard;

our $SevenBitSafe = qr{^[\x00-\x7F]*$}sm;

declare Str,
	as Types::Standard::Str;

declare Bytes,
	as Str,
	where     { !utf8::is_utf8($_) },
	inline_as { "!utf8::is_utf8($_)" };

declare Chars,
	as Str,
	where     { utf8::is_utf8($_) or $_ =~ $Types::Encodings::SevenBitSafe },
	inline_as { "utf8::is_utf8($_) or $_ =~ \$Types::Encodings::SevenBitSafe" };

declare_coercion Decode => to_type Chars, {
	coercion_generator => sub {
		my ($self, $target, $encoding) = @_;
		require Encode;
		Encode::find_encoding($encoding)
			or _croak("Parameter \"$encoding\" for Decode[`a] is not an encoding supported by this version of Perl");
		require B;
		$encoding = B::perlstring($encoding);
		return (Bytes, qq{ Encode::decode($encoding, \$_) });
	},
};

declare_coercion Encode => to_type Bytes, {
	coercion_generator => sub {
		my ($self, $target, $encoding) = @_;
		require Encode;
		Encode::find_encoding($encoding)
			or _croak("Parameter \"$encoding\" for Encode[`a] is not an encoding supported by this version of Perl");
		require B;
		$encoding = B::perlstring($encoding);
		return (Chars, qq{ Encode::encode($encoding, \$_) });
	},
};

1;

__END__