From: Brian Candler <b.candler@...>
Date: 2010-02-14T02:43:18+09:00
Subject: Re: What is the best exception to use for bad Data State?

Xeno Campanoli wrote:
> def myPureVirtualMethod
>   raise ScriptError, "This should never be called.  Daughter Classes 
> MUST   define
> their own."
> end

raise NoMethodError perhaps?

> def validateThatThingMadeByPureVirtualMethodIsThere
>   unless theThingMMadeByPureVirtualMethodIsThere?
>     raise ScriptError, "That thingy isn't there."
>   end
> end

raise "That thingy isn't there"    # RuntimeError

class MissingThingyErrror < RuntimeError; end
raise MissingThingyError, "That thingy isn't there"
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