94 lines
2.2 KiB
Perl
94 lines
2.2 KiB
Perl
package Class::Accessor::Fast;
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use base 'Class::Accessor';
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use strict;
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$Class::Accessor::Fast::VERSION = '0.34';
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sub make_accessor {
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my($class, $field) = @_;
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return sub {
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return $_[0]->{$field} if scalar(@_) == 1;
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return $_[0]->{$field} = scalar(@_) == 2 ? $_[1] : [@_[1..$#_]];
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};
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}
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sub make_ro_accessor {
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my($class, $field) = @_;
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return sub {
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return $_[0]->{$field} if @_ == 1;
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my $caller = caller;
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$_[0]->_croak("'$caller' cannot alter the value of '$field' on objects of class '$class'");
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};
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}
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sub make_wo_accessor {
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my($class, $field) = @_;
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return sub {
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if (@_ == 1) {
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my $caller = caller;
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$_[0]->_croak("'$caller' cannot access the value of '$field' on objects of class '$class'");
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}
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else {
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return $_[0]->{$field} = $_[1] if @_ == 2;
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return (shift)->{$field} = \@_;
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}
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};
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}
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1;
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__END__
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=head1 NAME
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Class::Accessor::Fast - Faster, but less expandable, accessors
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=head1 SYNOPSIS
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package Foo;
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use base qw(Class::Accessor::Fast);
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# The rest is the same as Class::Accessor but without set() and get().
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=head1 DESCRIPTION
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This is a faster but less expandable version of Class::Accessor.
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Class::Accessor's generated accessors require two method calls to accompish
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their task (one for the accessor, another for get() or set()).
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Class::Accessor::Fast eliminates calling set()/get() and does the access itself,
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resulting in a somewhat faster accessor.
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The downside is that you can't easily alter the behavior of your
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accessors, nor can your subclasses. Of course, should you need this
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later, you can always swap out Class::Accessor::Fast for
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Class::Accessor.
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Read the documentation for Class::Accessor for more info.
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=head1 EFFICIENCY
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L<Class::Accessor/EFFICIENCY> for an efficiency comparison.
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=head1 AUTHORS
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Copyright 2007 Marty Pauley <marty+perl@kasei.com>
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This program is free software; you can redistribute it and/or modify it under
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the same terms as Perl itself. That means either (a) the GNU General Public
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License or (b) the Artistic License.
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=head2 ORIGINAL AUTHOR
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Michael G Schwern <schwern@pobox.com>
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=head1 SEE ALSO
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L<Class::Accessor>
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=cut
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