File: Delayed.pm

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libmail-box-perl 2.068-1
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use strict;
use warnings;

package Mail::Message::Body::Delayed;
use vars '$VERSION';
$VERSION = '2.068';
use base 'Mail::Reporter';

use Object::Realize::Later
    becomes          => 'Mail::Message::Body',
    realize          => 'load',
    warn_realization => 0,
    believe_caller   => 1;

use Carp;
use Scalar::Util 'weaken';


use overload '""'    => 'string_unless_carp'
           , bool    => sub {1}
           , '@{}'   => sub {shift->load->lines};

#------------------------------------------


sub init($)
{   my ($self, $args) = @_;
    $self->SUPER::init($args);

    $self->{MMB_seqnr}    = -1;  # for overloaded body comparison
    $self->{MMBD_message} = $args->{message}
        or $self->log(INTERNAL => "A message must be specified to a delayed body.");

    weaken($self->{MMBD_message});
    $self;
}

#------------------------------------------


sub message() { shift->{MMBD_message} }

#------------------------------------------


sub modified(;$)
{   return 0 if @_==1 || !$_[1];
    shift->forceRealize(shift);
}

#------------------------------------------


sub isModified() { 0 }

#------------------------------------------


sub isDelayed()   {1}

#------------------------------------------


sub isMultipart() {shift->message->head->isMultipart}

#------------------------------------------


sub guessSize()   {shift->{MMBD_size}}

#------------------------------------------


sub nrLines()
{   my ($self) = @_;
      defined $self->{MMBD_lines}
    ? $self->{MMBD_lines}
    : $_[0]->forceRealize->nrLines;
}

#------------------------------------------

sub string_unless_carp()
{   my $self = shift;
    return $self->load->string unless (caller)[0] eq 'Carp';

    (my $class = ref $self) =~ s/^Mail::Message/MM/g;
    "$class object";
}

#------------------------------------------


sub read($$;$@)
{   my ($self, $parser, $head, $bodytype) = splice @_, 0, 4;
    $self->{MMBD_parser} = $parser;

    @$self{ qw/MMBD_begin MMBD_end MMBD_size MMBD_lines/ }
        = $parser->bodyDelayed(@_);

    $self;
}

#------------------------------------------


sub fileLocation(;@) {
   my $self = shift;
   return @$self{ qw/MMBD_begin MMBD_end/ } unless @_;
   @$self{ qw/MMBD_begin MMBD_end/ } = @_;
}

#------------------------------------------


sub moveLocation($)
{   my ($self, $dist) = @_;
    $self->{MMBD_begin} -= $dist;
    $self->{MMBD_end}   -= $dist;
    $self;
}

#------------------------------------------


sub load() {$_[0] = $_[0]->message->loadBody}

#------------------------------------------


1;