[swift-evolution] [Pre-Proposal-Discussion] Union Type - Swift 4

Cao, Jiannan frogcjn at 163.com
Thu Aug 11 00:25:01 CDT 2016

Swift evolution seems not an evolution. 

I'll leave this mail list since this is not a good proposal environment. 
Typescript and other language community is more open to new idea. Swift-evolution is just a weird community. 

You just accept what you like and what you want. Is this called swift-evolution or proposal?

Proposal is for a long time standard, not just for next version of your shame release.

在 2016-08-11 13:18:54,"Chris Lattner" <clattner at apple.com> 写道:

On Aug 10, 2016, at 8:15 PM, Xiaodi Wu via swift-evolution <swift-evolution at swift.org> wrote:

I don't know if the core team feels differently now with respect to Swift 4, but union types are listed as a "commonly rejected change":


There is no change in opinion here.  This topic is also out of scope for Swift 4 stage 1 in any case.

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