<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Just wanted to add that I ran into the #if limitations when trying to port Alamofire to Linux, so any enhancements would be most welcome. There was a point where I had to duplicate an entire class because I couldn't use #if for just the parts I needed.<div class=""><br class=""></div><div class=""><br class=""></div><div class="">Jon</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On May 11, 2017, at 11:57 AM, rintaro ishizaki 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" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">Thank you all!<div class=""><br class=""><div class="gmail_extra"><br class=""><div class="gmail_quote">2017-05-11 16:18 GMT+09:00 John McCall via swift-evolution<span class="Apple-converted-space"> </span><span dir="ltr" class=""><<a href="mailto:swift-evolution@swift.org" target="_blank" class="">swift-evolution@swift.org</a>></span>:<br class=""><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;"><div style="word-wrap: break-word;" class=""><div class=""><span class="gmail-"><blockquote type="cite" class=""><div class="">On May 11, 2017, at 1:45 AM, Nicholas Maccharoli via swift-evolution <<a href="mailto:swift-evolution@swift.org" target="_blank" class="">swift-evolution@swift.org</a>> wrote:</div><div class=""><div dir="ltr" class=""><div style="font-family: 'comic sans ms', sans-serif; color: rgb(39, 78, 19);" class="">I also strongly agree. </div><div style="font-family: 'comic sans ms', sans-serif; color: rgb(39, 78, 19);" class=""><br class=""></div><div style="font-family: 'comic sans ms', sans-serif; color: rgb(39, 78, 19);" class="">I can think of no strong argument against this, was this intentional at one point or a compiler bug?<br class=""></div></div></div></blockquote><div class=""><br class=""></div></span>The language design of #if is more complex than it is in C: it is part of the language grammar, not a separate phase of pre-processing, and must be specifically supported in every position it appears.</div><div class=""><br class=""></div><div class="">That said, I agree with Chris and Jordan that supporting #if in any simple, sequential position in the grammar is an obvious extension of the existing design and can reasonably be fast-tracked.</div><div class=""><br class=""></div></div></blockquote><div class=""> </div><div class="">So, can I withdraw my proposal PR on swift-evolution repository now?</div><div class=""> </div><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;"><div style="word-wrap: break-word;" class=""><div class=""></div><div class="">Grammatically similar positions where it's hard to dispute the consistency argument for #if: get-set clauses, precedencegroup declarations.</div><div class=""><br class=""></div><div class="">A position which would definitely be more useful to prioritize but where both the language design and the implementation are trickier: attribute lists.</div><div class=""> <br class=""></div></div></blockquote><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;"><div style="word-wrap: break-word;" class=""><div class=""></div><div class="">John.</div><div class=""><div class="gmail-h5"><div class=""><br class=""><blockquote type="cite" class=""><div class=""><div dir="ltr" class=""><div style="font-family: 'comic sans ms', sans-serif; color: rgb(39, 78, 19);" class=""><br class=""></div><div style="font-family: 'comic sans ms', sans-serif; color: rgb(39, 78, 19);" class="">- Nick </div><div style="font-family: 'comic sans ms', sans-serif; color: rgb(39, 78, 19);" class=""><br class=""></div></div><div class="gmail_extra"><br class=""><div class="gmail_quote">On Thu, May 11, 2017 at 2:37 PM, Chris Lattner via swift-evolution<span class="Apple-converted-space"> </span><span dir="ltr" class=""><<a href="mailto:swift-evolution@swift.org" target="_blank" class="">swift-evolution@swift.org</a>></span><span class="Apple-converted-space"> </span>wrote:<br class=""><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;"><div style="word-wrap: break-word;" class="">I agree with Jordan.<div class=""><br class=""></div><div class="">-Chris</div><div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class=""><div class="gmail-m_-7477053268866123138h5"><div class="">On May 10, 2017, at 11:47 AM, Jordan Rose via swift-evolution <<a href="mailto:swift-evolution@swift.org" target="_blank" class="">swift-evolution@swift.org</a>> wrote:</div><br class="gmail-m_-7477053268866123138m_3026747317112192948Apple-interchange-newline"></div></div><div class=""><div class=""><div class="gmail-m_-7477053268866123138h5"><div style="word-wrap: break-word;" class=""><div class="">I'm in favor, certainly. I'd personally say this wouldn't even need to go through the full evolution process, but I'm not a core team member.</div><div class=""><br class=""></div><div class="">Jordan</div><div class=""><br class=""></div><br class=""><div class=""><blockquote type="cite" class=""><div class="">On May 10, 2017, at 01:32, rintaro ishizaki via swift-evolution <<a href="mailto:swift-evolution@swift.org" target="_blank" class="">swift-evolution@swift.org</a>> wrote:</div><br class="gmail-m_-7477053268866123138m_3026747317112192948Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi evolution community,<div class=""><br class=""></div><div class="">This proposal allows you to enclose switch cases with #if directive.<br class=""></div><div class="">Implementation:<span class="Apple-converted-space"> </span><a href="https://github.com/apple/swift/pull/9457" target="_blank" class="">https://github.com/apple/swift<wbr class="">/pull/9457</a></div><div class="">This is one of the oldest SR issue:</div><div class=""><a href="https://bugs.swift.org/browse/SR-2" target="_blank" class="">https://bugs.swift.org/browse/<wbr class="">SR-2</a></div><div class=""><a href="https://bugs.swift.org/browse/SR-4196" target="_blank" class="">https://bugs.swift.org/browse/<wbr class="">SR-4196</a></div><div class=""><br class=""></div><div class="">Thanks!</div><div class="">Rintaro</div></div></div></blockquote></div><br class=""></div></div></div><span class="">______________________________<wbr class="">_________________<br class="">swift-evolution mailing list<br class=""><a href="mailto:swift-evolution@swift.org" target="_blank" class="">swift-evolution@swift.org</a><br class=""><a href="https://lists.swift.org/mailman/listinfo/swift-evolution" target="_blank" class="">https://lists.swift.org/mailma<wbr class="">n/listinfo/swift-evolution</a><br class=""></span></div></blockquote></div><br class=""></div></div><br class="">______________________________<wbr class="">_________________<br class="">swift-evolution mailing list<br class=""><a href="mailto:swift-evolution@swift.org" target="_blank" class="">swift-evolution@swift.org</a><br class=""><a href="https://lists.swift.org/mailman/listinfo/swift-evolution" rel="noreferrer" target="_blank" class="">https://lists.swift.org/mailma<wbr class="">n/listinfo/swift-evolution</a><br class=""><br class=""></blockquote></div><br class=""></div>______________________________<wbr class="">_________________<br class="">swift-evolution mailing list<br class=""><a href="mailto:swift-evolution@swift.org" target="_blank" class="">swift-evolution@swift.org</a><br class=""><a href="https://lists.swift.org/mailman/listinfo/swift-evolution" target="_blank" class="">https://lists.swift.org/<wbr class="">mailman/listinfo/swift-<wbr class="">evolution</a><br class=""></div></blockquote></div><br class=""></div></div></div><br class="">______________________________<wbr class="">_________________<br class="">swift-evolution mailing list<br class=""><a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a><br class=""><a href="https://lists.swift.org/mailman/listinfo/swift-evolution" rel="noreferrer" target="_blank" class="">https://lists.swift.org/<wbr class="">mailman/listinfo/swift-<wbr class="">evolution</a><br class=""><br class=""></blockquote></div><br class=""></div></div></div><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">swift-evolution mailing list</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><a href="mailto:swift-evolution@swift.org" style="font-family: Helvetica; font-size: 12px; 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-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">swift-evolution@swift.org</a><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><a href="https://lists.swift.org/mailman/listinfo/swift-evolution" style="font-family: Helvetica; font-size: 12px; 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-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">https://lists.swift.org/mailman/listinfo/swift-evolution</a></div></blockquote></div><br class=""></div></body></html>