Could anyone explain the following Class::MethodMaker Code ?

jesuashok has asked for the wisdom of the Perl Monks concerning the following question:

Hi monks !!!

Could anyone explain the below code.
I am aware of new => new. what about the following ?

 scalar => [+{ -type => 'File::stat' }, qw/ name /],
[download]


use Class::MethodMaker

[

 scalar => [+{ -type => 'File::stat' }, qw/ name /],

 new    => 'new',

];
[download]

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Re: Could anyone explain the following Class::MethodMaker Code ? by wazoox (Prior) on Feb 20, 2006 at 11:53 UTC
Blech. That is really the sort of code that makes perl's bad reputation... So what do we have ? here's my explanation : the enclosing "[]" force an anonymous array context. Inside we have 2 array elements : `scalar => [+{ -type => 'File::stat' }, qw/ name /], new => 'new',` [download] The last one ( new => 'new') is clear enough. The first one is trickier : scalar is the hash key; let's analyse the content : `[+{ -type => 'File::stat' }, qw/ name /]` [download] the enclosing square braces once again force an anonymous array. Inside there are two elements : `+{ -type => 'File::stat' }, qw/ name /` [download] , the + force the following curly brace {} to be interpreted as an hash element and not a code block. so that's simply an anonymous hash entry. "qw/name/" is just useless here because there's only one word... Finally that's not very complex, just extremely obfuscated... Here's what Data::Dumper can tell us about this structure, finally : `$VAR1 = { 'scalar' => [ { '-type' => 'File::stat' }, 'name' ], 'new' => 'new' };` [download] It's way better, isn't it ? update : I forgot to mention that this structure looks like a pseudo-hash.	[reply] [d/l] [select]
Re: Could anyone explain the following Class::MethodMaker Code ? by mattr (Curate) on Feb 22, 2006 at 07:12 UTC
While on the subject, I had exactly the same question since that line appears in the docs. Could use more tutorials / docs on Class::MethodMaker and especially persistence of its objects. (Am posting a separate thread about that now).	[reply]


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