Template::Namespace::Constants − Compile time constant folding
# easy way to
define constants
use Template;
my $tt = Template−>new({
CONSTANTS => {
pi => 3.14,
e => 2.718,
},
});
# nitty−gritty, hands−dirty way
use Template::Namespace::Constants;
my $tt = Template−>new({
NAMESPACE => {
constants =>
Template::Namespace::Constants−>new({
pi => 3.14,
e => 2.718,
},
},
});
The "Template::Namespace::Constants" module implements a namespace handler which is plugged into the "Template::Directive" compiler module. This then performs compile time constant folding of variables in a particular namespace.
The new() constructor method creates and returns a reference to a new Template::Namespace::Constants object. This creates an internal stash to store the constant variable definitions passed as arguments.
my $handler =
Template::Namespace::Constants−>new({
pi => 3.14,
e => 2.718,
});
Method called to resolve a variable identifier into a compiled form. In this case, the method fetches the corresponding constant value from its internal stash and returns it.
Andy Wardley <[email protected]> <http://wardley.org/>
Copyright (C) 1996−2022 Andy Wardley. All Rights Reserved.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Template::Directive