Perl6 Object Oriented Cookbook (v0.2.1)  
Section 9: Assertions and Invariants  
 
Recipe 9.6: Extending Method Postconditions
Last Updated: Sep 8, 2003
Status: Draft
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Problem:  

You have a method in a parent class with a declared postcondition. You want to declare an additional postcondition for that method in your subclass.

Solution:  

Discussion:


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