69 lines
2.5 KiB
Perl
69 lines
2.5 KiB
Perl
# -*- Mode: perl; tab-width: 4; indent-tabs-mode: nil; -*-
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#
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# This file is MPL/GPL dual-licensed under the following terms:
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#
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# The contents of this file are subject to the Mozilla Public License
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# Version 1.1 (the "License"); you may not use this file except in
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# compliance with the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS"
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# basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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# the License for the specific language governing rights and
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# limitations under the License.
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#
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# The Original Code is PLIF 1.0.
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# The Initial Developer of the Original Code is Ian Hickson.
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#
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# Alternatively, the contents of this file may be used under the terms
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# of the GNU General Public License Version 2 or later (the "GPL"), in
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# which case the provisions of the GPL are applicable instead of those
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# above. If you wish to allow use of your version of this file only
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# under the terms of the GPL and not to allow others to use your
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# version of this file under the MPL, indicate your decision by
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# deleting the provisions above and replace them with the notice and
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# other provisions required by the GPL. If you do not delete the
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# provisions above, a recipient may use your version of this file
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# under either the MPL or the GPL.
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package PLIF::MagicSelectingArray;
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use strict;
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use vars qw($AUTOLOAD); # it's a package global
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use Carp qw(cluck confess); # stack trace versions of warn and die
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1;
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# This can be used separate from PLIF, and so does not inherit from
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# the PLIF core. Calling any method except 'create' will result in the
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# method call being forwarded to each of the wrapped objects until one
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# returns a value (including 'undef'), which will then be returned.
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sub create {
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my $class = shift;
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if (ref($class)) {
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$class = ref($class);
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}
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my $self = [@_];
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bless($self, $class);
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return $self;
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}
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sub AUTOLOAD {
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my $self = shift;
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my $name = $AUTOLOAD;
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$name =~ s/^.*://o; # strip fully-qualified portion
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foreach my $object (@$self) {
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my $method = $object->can($name);
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if ($method) {
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my @result = &$method($object, @_);
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if (@result) {
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return @result;
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}
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} else {
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confess("Failed to find method or property '$name' in object '$object' of MagicSelectingArray '$self', aborting"); # die with stack trace
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}
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}
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return;
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}
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sub DESTROY {} # stub to prevent propagation to members of magic array
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