| Next | Tricks of the Wizards | 8 |
How is the value of $foo looked up?
Figure out package name
Parse::RecDescent::foo --> Parse::RecDescent
Person::new --> Person
foo --> (Whatever is current)
Look in stash for package, locate key foo
Value is a glob. Extract SCALAR part of glob.
Result is a pointer to an SV
The SV is the value. (NULL pointer == undef)
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Copyright © 2003 M. J. Dominus |