[swift-users] for with optional collection?

[Rick Mann via swift-users]

Is there any concise way to write the following?

if let collection = someOptionalCollection
{
    for item in collection
    {
    }
}

I can imagine more complicated things, too:

if let collection = someOptionalCollection as? [SomeType]
{
    for item in collection
    {
    }
}

It would be nice to be able to just attempt to iterate on an optional 
collection (or Sequence?) and not have to write the enclosing if block

Thanks!

-- 
Rick Mann
rm...@latencyzero.com


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