Created
April 17, 2013 09:49
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| use v5.14; | |
| package XYZ { | |
| use Moo; | |
| has attr1 => ( | |
| is => "ro", | |
| isa => sub { $_[0] = __FILE__ if $_[0] eq '1' }, | |
| ); | |
| } | |
| say XYZ->new(attr1 => 1)->attr1; |
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