On Sun, 2004-12-19 at 01:28, chris.danx wrote:

> My concern with variants is sharing subgraphs in graphs, will they be 
> shared or copied?

It is up to you. Consider:

match ex with
| `A a -> `A a 
| (`B b ) as x -> x
| x -> x

In the first case, you're making a new object, by executing
the constructor `A. In the second and third you're not.
In all cases, the constructor argument is shared.

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