[swift-evolution] [Accepted] SE-0072: Fully eliminate implicit bridging conversions from Swift

Chris Lattner clattner at apple.com
Thu May 5 23:50:21 CDT 2016

Proposal link: https://github.com/apple/swift-evolution/blob/master/proposals/0072-eliminate-implicit-bridging-conversions.md

Hello Swift Community,

The review of SE-0072 "Fully eliminate implicit bridging conversions from Swift” ran from April 26 ... May 2, 2016. The proposal is *accepted* for Swift 3. 

The feedback on this proposal was positive - the benefits of simplifying the type system and eliminating surprising behavior from the compiler is universally appealing.  However, both the core team and the community wanted a better sense of what the impact of the proposal would be in practice on real code.  Joe Pamer did some analysis and found out that there isn’t a significant impact on the most concerning use case:

Thank you to Joe Pamer for driving the proposal and the implementation work for this improvement!

Review Manager

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