Re: simpler replacement for <%shared>

On Tue, 28 Sep 2004, Jonathan Swartz wrote:
> The main use of the <%shared> section is to declare variables that can
> be shared between different parts of a component and that persist for a
> single request.
>
> We can provide almost the same functionality in a simpler, more reliable
> way with a restricted block that simply declares one or more shared
> request variables. e.g.
>     <%request_vars>
> Beyond implementation simplicity and efficiency, this section has
> several advantages over <%shared>:

Wild applause.  I never liked <%shared> much, although it certainly comes
in useful when it's needed.

Can you say anything about the implementation?
How is it implemented differently from <%shared> variables, or declaring
"my $var" inside a <%once> section?

> * Mason can automatically cleanup the values of each request var at the
> end of the request. Variables declared in <%shared> cannot be
> automatically cleaned up and thus often look like leaks.

Will it happen even with exceptions and aborts?  (unlike <%cleanup>)

~ John Williams




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