[46] Evolution, mailing list

Author: modocache

_drafts/2016-11-10-issue-46.md

@@ -34,7 +34,7 @@ Chris Bieneman [presented](https://llvmdevelopersmeetingbay2016.sched.org/event/
 
 ### Commits and pull requests
 
-> TODO: Learn what "eager bridging" is, and include a short blurb on https://github.com/apple/swift/pull/5488 and https://github.com/apple/swift/pull/5489.
+Alexis Beingessner sent pull requests for eager [array](https://github.com/apple/swift/pull/5488) and [string](https://github.com/apple/swift/pull/5489) bridging. Currently, Objective-C's `NSArray` and `NSString` are bridged into Swift by keeping a reference to a `-copy` of the Objective-C object, then forwarding messages to and from it. This has a performance overhead that can be eliminated by "eagerly" copying the contents of the `NSArray` or `NSString` into a Swift `Array` or `String` once, at the time that the Objective-C object is first bridged to Swift. Doug Gregor explains eager bridging [here](https://twitter.com/dgregor79/status/796593026151944193).
 
 Slava Pestov [sent](https://github.com/apple/swift/pull/5600) a pull request that enables nested types within generic types. This resolves an ABI FIXME in the Swift standard library.
 
@@ -50,29 +50,17 @@ Dave Abrahams [sent](https://github.com/apple/swift/pull/5640) a pull request to
 
 Hugh Bellamy [sent](https://github.com/apple/swift/pull/5671) instructions on how to compile and run Swift on Windows, via Bash on Windows.
 
-> TODO
-
-### Accepted proposals
-
-> TODO
-
-### Returned proposals
-
-> TODO
-
-### Rejected proposals
-
-> TODO
-
 ### Proposals in review
 
-> TODO
+Doug Gregor's [SE-0143](https://github.com/apple/swift-evolution/blob/master/proposals/0143-conditional-conformances.md), *Conditional conformances*, is back in review.
+
+> During the first round of review for SE-0143, there was concern about the clarity of the proposal as written, since the discussion fixated on a number of ancillary issues not intended to be core to the proposal. Doug has revised the proposal for another round of feedback, so the review period for this proposal has been extended through November 15.
 
 ### Mailing lists
 
-Brian Gesiak [posted](https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20161107/003440.html) results from running the PVS-Studio static analyzer on the Swift codebase. Based on the analyer warnings, Michael Ilseman [removed](https://github.com/apple/swift/pull/5677) some unused method arguments.
+Graydon Hoare [posted](https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20161031/003410.html) advice on how to help the Swift team diagnose slow compile time performance. His attachment was scrubbed from the mailing list archives, but you can read it [here](https://gist.github.com/modocache/9805e3e8420ccfe5f49f9c932bac27d3).
 
-> TODO
+Brian Gesiak [posted](https://lists.swift.org/pipermail/swift-dev/Week-of-Mon-20161107/003440.html) results from running the PVS-Studio static analyzer on the Swift codebase. Based on the analyer warnings, Michael Ilseman [removed](https://github.com/apple/swift/pull/5677) some unused method arguments.
 
 ### Finally