Hi there,
I'm searching for more wisdom about typed lexicals. I found out, that all access to typed variables, which are declared like this:
my MyClass $object = new MyClass()
are checked at compiletime (use fields use this behavior). And I want to know, which module knows all about the variable accesses? Can I read out this table? Can I change the behavior?
I found out, that all what I need to enable theese checks is, to create the Class-HASH "FIELDS" in MyClass like that:
package MyClass;
use strict;
use warnings;
local %MyClass::FIELDS;
BEGIN { %MyClass::FIELDS = ('_test' => 1); }
sub new { bless ['PackageName', 'value_of_"_test"'], $_[0] }
package main;
my MyClass $t = new MyClass();
print $t->{'_test2'};
This throw an error at compiletime because "_test2" is not defined. But it expected, that the object is an arrayreference.
I found some cryptic description for "avhv" (don't know what this is) and som Perl-XS C libaries with methods that starts with "pad_", but as I sad, it's very cryptic for me. Can anyone help? Are there wise monks out there and share wisdom with me :)
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