From: Stefano Crocco <stefano.crocco@...>
Date: 2007-10-04T20:38:23+09:00
Subject: Re: (Newbie) Override * on Array

Alle giovedì 4 ottobre 2007, Stefano Crocco ha scritto:
> Regarding errors, you I think you can check the size of the two array at
> the beginning of the method and raise TypeError if they're different.

Sorry, it should be ArgumentError, not TypeError. Looking at ruby standard 
library, TypeError is used when an object of the wrong type is passed (for 
example, passing an Array to Kernel.Integer), while ArgumentError is used 
when the argument is of the correct type, but doesn't meet some other 
requirements (for example, passing a string which doesn't represent a number 
to Kernel.Integer). In this case, the argument is of the correct type 
(Array), but the requirement "having the same size of the receiver" is not 
met, so I think you should use ArgumentError.

Stefano