> On Jul 1, 2016, at 2:06 AM, Cao Jiannan via swift-evolution
> <[email protected]> wrote:
>
> https://github.com/frogcjn/swift-evolution/blob/master/proposals/xxxx-union-type.md
>
> <https://github.com/frogcjn/swift-evolution/blob/master/proposals/xxxx-union-type.md>
>
> Hi,
>
> I'm now officially proposal the union type feature for Swift. Please see:
FYI, this is clearly out of scope for Swift 3. Please wait until Swift 3 is
wound down before bringing this up. Also beware that this topic has come up
several times before and there are major semantic problems with it. Please
familiarize yourself with those previous discussions.
-Chris
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