[PATCH 1 of 2] store: refactor fncacheopener into a class

[Matt Mackall]

On Thu, 2011-03-31 at 20:05 +0200, Adrian Buehlmann wrote:
> # HG changeset patch
> # User Adrian Buehlmann <adrian at cadifra.com>
> # Date 1301588551 -7200
> # Node ID 59407bbe840ae49ecc0823dd7d0acf8e731fca2f
> # Parent  f1823b9f073bd376e19fc544c2891609458891e4
> store: refactor fncacheopener into a class

I get the impression that you're doing this because I said something
like "these things should be real classes". 

But the reason to use a class is to take advantage of inheritance. Then
when we add features/attributes at the bottom of the stack, they're
automatically available at the top. With inheritance-through-wrapping,
you don't get this.

-- 
Mathematics is the supreme nostalgia of our time.