From: Hal Fulton <rubyhacker@...>
Date: 2009-11-04T07:32:13+09:00
Subject: Re: StringIO and reopen

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>
> This will be difficult to do because then StringIO would somehow have
> to change its type.  Of course you could achieve that with some kind
> of proxy pattern but I doubt that this would be a good idea; we all
> would always pay the price of the overhead (1 more object per IO /
> StringIO) for a feature which seems rarely wanted (I cannot recall
> having seen a request like this in years).
>


Well, reopen also can take a string, I believe. So it already takes
more than one type. But the overhead argument is valid.

[snip]


> So for
> StringIO the natural solution would be to just overwrite the variable
> with another IO and make sure that there are no aliased variables
> (e.g. by always referring to the single variable via a method).
>
>
I'm not sure I understand.

How would I, for example, capture all that went to standard error
in a StringIO object?

Hal

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