<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="">IMO everyday app building would rarely need to use functions with discardable results. This is more an issue with libraries or frameworks that support a <i class="">fluent interface</i> (e.g. that return self) where an operator chain can be stopped at any point, unless it clearly doesn’t make sense, in which case @discardableResult would not be advised. I am building such a library. It has 200+ uses of @discardableResult and <u class="">I don’t have a problem with it in it’s current form</u> (especially since it can go on the line before the function). It’s an annotation for a specialized purpose, hence the very specific nomenclature.<div class=""><br class=""></div><div class=""><div class=""><div><blockquote type="cite" class=""><div class="">On Oct 10, 2017, at 7:48 PM, Mike Kluev 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=""><div dir="ltr" class="">On 10 October 2017 at 07:02, Xiaodi Wu <span dir="ltr" class=""><<a href="mailto:xiaodi.wu@gmail.com" target="_blank" class="">xiaodi.wu@gmail.com</a>></span> wrote:<br class=""><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">This idea was discussed long ago and the present design was selected. At this point in Swift Evolution, source-breaking changes are in scope only if the status quo is demonstrably harmful.</blockquote><div class=""><br class=""></div><div class="">changes like discussed are not necessarily source-breaking: you can allow @discardableResult for a while (along with deprecating it at some point) in addition to having a newer preferred way - should we decide there is a preferred way.</div><div class=""> </div><div class="">on Mon, 09 Oct 2017 20:07:13 +0200 Tino Heth <<a href="mailto:tinoheth@me.com" class="">tinoheth@me.com</a>> wrote:</div><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">As for the line-length, I don’t buy this argument, because placement of line breaks is just personal preference, and keywords/annotations created by gluing together two words should imho avoided wherever possible (not only because the increased character count).</blockquote></div></div><div class=""> </div><div class="">+1. same here on both counts. multi-word compound and @ symbol makes names ugly. it feels it was done intentionally to indicate a "temporary" "to be cleaned later" nature of a feature (it is a very good choice for @objc)</div><div class=""><br class=""></div><div class="">and if "fileprivate" is ugly because it is two words glued together (*) maybe there is another name for it? just "file"? "domestic" ?</div><div class=""><br class=""></div><div class="">Mike<br class=""></div><div class="">(* the very concept of "file private" is a bit ugly from a traditional languages perspective).<br class=""></div><div class=""><br class=""></div></div></div></div>
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<div style="color: rgb(0, 0, 0); font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Verdana; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">David James</div></div></span></div></span></div></span></div></div>
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