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P5-sentinel

May 26, 2018

Create lightweight SCALARs with get/set callbacks

Sentinel provides a single lvalue function, sentinel, which yields a scalar that invoke callbacks to get or set its value. Primarily this is useful to create lvalue object accessors or other functions, to invoke actual code when a new value is set, rather than simply updating a scalar variable.

WWW http//search.cpan.org/dist/Sentinel/