<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Sep 10, 2016, at 1:20 AM, Fabian Ehrentraud via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">
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<div style="direction: inherit;" class="">I'd make the warning an error by default</div></div></div></div></blockquote><div><br class=""></div>Swift 3.0 has already shipped without this warning, so making it an error by default would break source compatibility.</div><div><br class=""></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>- Doug</div><div><br class=""><blockquote type="cite" class=""><div class=""><div dir="auto" class=""><div class="">
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Am 09.09.2016 um 16:09 schrieb Fabian Ehrentraud via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>>:<br class="">
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<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>• What is your evaluation of the proposal?<br class="">
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<div class="">In favor, as we already ran into crashes after migrating our project to Swift 3.</div>
<div class="">I'm not completely convinced though that the compiler should ignore nullabiliy markup on id. Also id has a long tradition in the ObjC community to be used instead of NSObject * which does not suffer from the problem.</div>
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<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>• Is the problem being addressed significant enough to warrant a change to Swift?<br class="">
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<div class="">Very much, the compiler should do everything it can to avoid runtime crashes due to programmer errors.</div>
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<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>• Does this proposal fit well with the feel and direction of Swift?<br class="">
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<div class="">Yes, more intelligent and useful bridging makes sense. NSNull can be problematic too, but having an Optional.some value definitely should work on the other side of the bridge too.</div>
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<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>• If you have used other languages or libraries with a similar feature, how do you feel that this proposal compares to those?<br class="">
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<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>• How much effort did you put into your review? A glance, a quick reading, or an in-depth study?<br class="">
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<div class="">I even filed a Swift bug (SR-2601) before I found this proposal explaining that nullability on id is ignored since SE-0116.</div>
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<div class="">- Fabian</div>
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<div class="">On 03.09.2016, at 00:50, Douglas Gregor via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div>
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Hello Swift community,</p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 16px; background-color: rgb(255, 255, 255);" class="">
The review of SE-0140 "Bridge Optional As Its Payload Or NSNull" begins now and runs through September 8, 2016. The proposal is available here:</p>
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<font color="#777777" face="-apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica, Arial, sans-serif, Apple Color Emoji, Segoe UI Emoji, Segoe UI Symbol" size="3" class=""><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0140-bridge-optional-to-nsnull.md" class="">https://github.com/apple/swift-evolution/blob/master/proposals/0140-bridge-optional-to-nsnull.md</a></font></div>
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Reviews are an important part of the Swift evolution process. All reviews should be sent to the swift-evolution mailing list at</p>
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<a href="https://lists.swift.org/mailman/listinfo/swift-evolution" style="box-sizing: border-box; background-color: transparent; -webkit-text-decoration-skip: objects; color: rgb(64, 120, 192); text-decoration: none;" class="">https://lists.swift.org/mailman/listinfo/swift-evolution</a></div>
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or, if you would like to keep your feedback private, directly to the review manager. When replying, please try to keep the proposal link at the top of the message:</p>
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Proposal link:</p>
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<a href="https://github.com/apple/swift-evolution/blob/master/proposals/0140-bridge-optional-to-nsnull.md" class="">https://github.com/apple/swift-evolution/blob/master/proposals/0140-bridge-optional-to-nsnull.md</a></div>
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Reply text</p>
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Other replies</div>
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<a id="user-content-what-goes-into-a-review-1" class="anchor" href="https://github.com/apple/swift-evolution#what-goes-into-a-review-1" aria-hidden="true" style="box-sizing: border-box; background-color: transparent; -webkit-text-decoration-skip: objects; color: rgb(64, 120, 192); text-decoration: none; float: left; padding-right: 4px; margin-left: -20px; line-height: 1;"><svg aria-hidden="true" class="octicon octicon-link" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path d="M4 9h1v1H4c-1.5 0-3-1.69-3-3.5S2.55 3 4 3h4c1.45 0 3 1.69 3 3.5 0 1.41-.91 2.72-2 3.25V8.59c.58-.45 1-1.27 1-2.09C10 5.22 8.98 4 8 4H4c-.98 0-2 1.22-2 2.5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>What
goes into a review?</h5><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 16px; background-color: rgb(255, 255, 255);" class="">
The goal of the review process is to improve the proposal under review through constructive criticism and, eventually, determine the direction of Swift. When writing your review, here are some questions you might want to answer in your review:</p>
<ul style="box-sizing: border-box; padding-left: 2em; margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 16px; background-color: rgb(255, 255, 255);" class="">
<li style="box-sizing: border-box;" class="">What is your evaluation of the proposal?</li><li style="box-sizing: border-box; margin-top: 0.25em;" class="">Is the problem being addressed significant enough to warrant a change to Swift?</li><li style="box-sizing: border-box; margin-top: 0.25em;" class="">Does this proposal fit well with the feel and direction of Swift?</li><li style="box-sizing: border-box; margin-top: 0.25em;" class="">If you have used other languages or libraries with a similar feature, how do you feel that this proposal compares to those?</li><li style="box-sizing: border-box; margin-top: 0.25em;" class="">How much effort did you put into your review? A glance, a quick reading, or an in-depth study?</li></ul><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 16px; background-color: rgb(255, 255, 255);" class="">
More information about the Swift evolution process is available at</p>
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<div style="box-sizing: border-box; margin-top: 0px; margin-bottom: 0px;" class="">
<a href="https://github.com/apple/swift-evolution/blob/master/process.md" style="box-sizing: border-box; background-color: transparent; -webkit-text-decoration-skip: objects; color: rgb(64, 120, 192); text-decoration: none;" class="">https://github.com/apple/swift-evolution/blob/master/process.md</a></div>
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Thank you,</p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 16px; background-color: rgb(255, 255, 255);" class="">
-Doug</p><p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color: rgb(51, 51, 51); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol'; font-size: 16px; background-color: rgb(255, 255, 255);" class="">
Review Manager</p>
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