> On Aug 31, 2015, at 9:55 PM, Matt Bauman <[email protected]> wrote:
> 
> That's the point of the macro - to ensure that inference infers a concrete 
> result. It can help ensure that code stays type-stable. Throwing for a union 
> is expected.

OK, that makes sense now!  Thanks!
(and it shows I was right about that function, that it isn’t type-stable!)

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