<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="">Isn’t the only thing keeping nil relevant is the NilLiteralConvertible protocol?<div class=""><br class=""></div><div class="">Brandon</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jun 8, 2016, at 5:08 PM, John McCall 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 style="" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">On Jun 8, 2016, at 1:41 PM, Антон Жилин via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:<br class="">(No joking)<br class="">Points:<br class=""><br class="">1. When nil was added to the language, we could not infer enumeration type:<br class="">if x != Optional.none { ... }<br class=""><br class="">Now it looks like this:<br class="">if x != .none { ... }<br class=""><br class="">If at this point we had a proposal to add nil as a replacement for .none, would we accept it?<br class=""><br class="">2. nil is very generic, it only approximately allows to express the intentions.<br class="">In case of Optional, .none is clearer. In case of JSON processing, .null is clearer. In case of a semantically nullable struct, NilLiteralConvertible usually goes to default constructor.<br class=""><br class="">3. Too many "empty" things: .none, nil; NSNull, Void, NoReturn types.<br class=""><br class="">4. There should be a single consistent terminology: no value in Swift equals none.<br class=""></blockquote><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">I know we're making a lot of source-compatibility breaks in Swift 3 and so these lines seem blurry, but I think the spelling of "nil" is quite solidly in the "that ship has sailed" category, along with "struct" and "func" and "var".</span><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">John.</span><br style="font-family: Helvetica; font-size: 14px; 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