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# Code in the PDF::API2::Basic::PDF namespace was originally copied from the |
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# Text::PDF distribution. |
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# |
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# Copyright Martin Hosken |
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# |
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# Martin Hosken's code may be used under the terms of the MIT license. |
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# Subsequent versions of the code have the same license as PDF::API2. |
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package PDF::API2::Basic::PDF::Null; |
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use base 'PDF::API2::Basic::PDF::Objind'; |
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use strict; |
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our $VERSION = '2.044'; # VERSION |
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=head1 NAME |
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PDF::API2::Basic::PDF::Null - Low-level PDF null object |
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=head1 METHODS |
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=cut |
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# There is only one null object (section 3.2.8). |
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my $null_obj = bless {}, 'PDF::API2::Basic::PDF::Null'; |
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=head2 PDF::API2::Basic::PDF::Null->new |
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Returns the null object. There is only one null object. |
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=cut |
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sub new { |
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return $null_obj; |
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} |
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=head2 $s->realise |
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Pretends to finish reading the object. |
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=cut |
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sub realise { |
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return $null_obj; |
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} |
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=head2 $s->outobjdeep |
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Output the object in PDF format. |
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=cut |
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sub outobjdeep { |
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my ($self, $fh, $pdf) = @_; |
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$fh->print('null'); |
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} |
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=head2 $s->is_obj |
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Returns false because null is not a full object. |
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=cut |
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sub is_obj { |
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return 0; |
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} |
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=head2 $s->copy |
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Another no-op. |
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=cut |
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sub copy { |
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return $null_obj; |
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} |
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=head2 $s->val |
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Return undef. |
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=cut |
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sub val { |
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return undef; ## no critic (undef is intentional) |
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} |
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1; |