That's not a method call, it's accessing a hash member through a reference. $self contains a member called '_init' which holds another hash reference.

That code simply increments a marker in that sub-hash. The key is the name of the current package (respecting inheritance). If _init() has already been called for the package, the key will already have been autovivified, and the value of the expression will be true.

Make sense?

In reply to Re: Syntax for preventing repeat object initializations by chromatic
in thread Syntax for preventing repeat object initializations by nysus

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