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All the Perl that's Practical to Extract and Report

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Flexing Moose 2 Comments More | Login | Reply /

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  • I decided to take the Moose out for a test drive, and ran into:

    has 'count' => (is=>'rw', isa=>'Int');

    $thing->count++; # fails!
    $thing->count($thing->count + 1); # ugly!

    Are lvalue accessors considered harmful, or would this make a good Moose::Policy?

    • Well to be honest, I am not sure what lead you to think that would work in the first place ;)

      I will admit that $thing->count($thing->count + 1) is ugly, but lvalue accessors are really problematic in a lot of ways.

      It has been suggested before that certain types could have additional accessors, so that this $thing->count($thing->count + 1) could become $thing->count_increment() or some such. But of course this is not always desired, so probably wouldnt be a good thing to force on all situations. But really, at this point though, I have not seen a good proposal for how this feature would look and work, so it remains just an idea. Until then, you could alway write your own increment_count method.

      -- Stevan

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