File Coverage

blib/lib/CPU/x86_64/InstructionWriter/Label.pm

Criterion	Covered	Total	%
statement	15	22	68.1
branch	4	16	25.0
condition	0	3	0.0
subroutine	6	9	66.6
pod	3	6	50.0
total	28	56	50.0

package CPU::x86_64::InstructionWriter::Label;
our $VERSION = '0.005'; # VERSION
use strict;
use warnings;
use Carp;

# ABSTRACT: Object representing a jump target in the code


sub relative_to { @_ > 1 && croak "Read-only"; $_[0]{relative_to} }
sub name        { @_ > 1 && croak "Read-only"; $_[0]{name} }
sub offset      { @_ > 1 && croak "Read-only"; $_[0]{offset} }
sub len         { @_ > 1 && croak "Read-only"; $_[0]{len}||0 }
sub value {
	my $offset= $_[0]{offset};
	my $rel= !defined $_[0]{relative_to}? 0
		: ref $_[0]{relative_to}? $_[0]{relative_to}->value
		: $_[0]{relative_to};
	defined $offset && defined $rel? $offset + $rel : undef;
}


sub clone_into_writer {
	my ($self, $writer, $offset, $label_map)= @_;
	return $label_map->{$self};
}

1;

__END__