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Re: Converting Hashes to Objects

by 1nickt (Abbot)
on May 17, 2020 at 14:31 UTC ( #11116855=note: print w/replies, xml ) Need Help??


in reply to Converting Hashes to Objects

Hi Hauke, does this differ from Hash::AsObject (which is usually in my stack)?


The way forward always starts with a minimal test.

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Re^2: Converting Hashes to Objects
by haukex (Bishop) on May 17, 2020 at 14:39 UTC
    does this differ from Hash::AsObject

    Yes, since that uses AUTOLOAD, which means it doesn't provide full typo prevention:

    use Hash::AsObject; my $h = Hash::AsObject->new( foo => "bar" ); print $h->fOo, "\n"; # warning about undef use Util::H2O; my $o = h2o { foo => "bar" }; print $o->fOo, "\n"; # dies

    Plus Util::H2O has the extra goodies like custom methods that I wrote about.

      Interesting, thanks! I noticed after your reply that it's not possible to use Hash::AsObject with L in one-liners (which I hadn't tried, I think); I imagine because of dueling AUTOLOAD trickery.

      $ perl -ML -wE 'my $h = Hash::AsObject->new( foo => "bar" ); say $h->f +oo' Can't locate foo.pm in @INC (you may need to install the foo module)
      😞

      I am usually under strictures(2) to catch typos, so it's not usually a feature I need in packages:

      $ perl -MHash::AsObject -wE 'my $h = Hash::AsObject->new( foo => "bar" + ); say $h->f0o; say 42' Use of uninitialized value in say at -e line 1. 42
      $ perl -MHash::AsObject -Mstrictures=2,1 -wE 'my $h = Hash::AsObject-> +new( foo => "bar" ); say $h->f0o; say 42' Use of uninitialized value in say at -e line 1.

      Thanks!


      The way forward always starts with a minimal test.

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