File Coverage

blib/lib/Math/Rational/Approx/MaxD.pm

Criterion	Covered	Total	%
statement	33	33	100.0
branch	4	4	100.0
condition	2	3	66.6
subroutine	11	11	100.0
pod	1	2	50.0
total	51	53	96.2

# --8<--8<--8<--8<--
#
# Copyright (C) 2012 Smithsonian Astrophysical Observatory
#
# This file is part of Math::Rational::Approx::MaxD
#
# Math::Rational::Approx::MaxD is free software: you can redistribute
# it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, either version
# 3 of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see .
#
# -->8-->8-->8-->8--

package Math::Rational::Approx::MaxD;

use strict;
use warnings;
use Carp;


our $VERSION = '0.01';

use Params::Validate qw[ validate_pos ARRAYREF ];
use Math::Rational::Approx;

use Moo;
use MooX::Types::MooseLike::Numeric ':all';
use MooX::Types::MooseLike::Base ':all';

has x => (
  is  => 'ro',
  isa => PositiveNum,
  required => 1,
);

has maxD => (
  is  => 'rwp',
  isa => PositiveInt,
  required => 1,
);

has bounds => (
  is => 'ro',
  coerce => sub { return  is_ArrayRef($_[0]) ? [ @{$_[0]} ] : $_[0] },
  isa => ArrayRef[PositiveOrZeroInt],
  default => sub { [] },
);

sub BUILD {

	my $self = shift;

	Math::Rational::Approx::_check_bounds( $self->x, $self->bounds )
	  if @{$self->bounds};
}


sub approx {

	my $self = shift;

	my ( $maxD ) = validate_pos( @_,
	                           { callbacks => { 'positive integer' => sub { is_PositiveInt($_[0]) } },
	                             optional => 1,
	                           }
	                             );
	$self->_set_maxD( $maxD )
	  if defined $maxD && $maxD > $self->maxD;

	my ( $n, $d ) = Math::Rational::Approx::maxD( $self->x, $self->maxD, $self->bounds );

	return ( $n, $d );
}

1;



__END__