> What happens when a ref is blessed into a non-existent class. Afterall bless's 2nd argument is a string and not a package qualifier.

You don't reveal the answer on purpose?

The package/class is created.

you can check by inspecting the %main:: stash, where all packages live

  DB<30>  bless [1,2,3] => 'nonexistent'

  DB<31> p $main::{'nonexistent::'}
*main::nonexistent::
  DB<32>

[download]

and I think ° it's not only the typeglob but also the stash %nonexistent:: is created, which will result in several hundreds of bytes of overhead

  DB<32> p *{$main::{'nonexistent::'}}{HASH}
HASH(0x2e7b830)
  DB<33>

[download]

So better don't try to automatically bless into millions of pseudo packages ...

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

PS: According to some statistics this was my 10000st post here ... frightening.

update

°) I couldn't find a pure Perl way to check if the HASH slot of a package:: like entry is filled, without autovivifying that package. It's a very quantum-brainf*ck thing, the observation is changing the result.

Update

For clarification: using bless to solve the semipredicate problem is totally fine in my eyes.

Just be aware that the package will exist. And this globally.

So you should care about a naming convention in your own namespace.

In reply to Re: Blessing with unknown classnames (updated x 2) by LanX
in thread Blessing with unknown classnames by bliako

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