Snipped quoted proposal so as to not break the mailing list… By and large, I'm in favor. I like the potential for bringing up Dictionary and Set up to the implementation quality of Array and String.
I don't think `init(merging:resolvingCollisionsWith:)` et al hold their weight for inclusion in the language, unless some notable optimization opportunity can be surfaced out of it. Users frustrated at the lack of a `merge` in Swift want it to be opinionated and "just do the right thing," i.e., the same way as whatever other language they most recently used. A properly annotated and indented-to-be-beautiful use of the closure- based version will take up the same amount of code as doing the merge by hand with your custom condition. Sincerely, Zachary Waldowski [email protected]
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