<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><br class=""><blockquote type="cite" class=""><div class="">下面是被转发的邮件：</div><br class="Apple-interchange-newline"><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">发件人: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">Cao Jiannan <<a href="mailto:frogcjn@163.com" class="">frogcjn@163.com</a>><br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">主题: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class=""><b class="">回复： [apple/swift-evolution] Proposal: Union Type (#404)</b><br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">日期: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">2016年7月1日 GMT+8 21:22:32<br class=""></span></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px;" class=""><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);" class=""><b class="">收件人: </b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;" class="">apple/swift-evolution <<a href="mailto:reply+001b1f9a1742a747c12a7f51b5245cb71cd8effe20d7236d92cf00000001138e2b4a92a169ce09bc7c95@reply.github.com" class="">reply+001b1f9a1742a747c12a7f51b5245cb71cd8effe20d7236d92cf00000001138e2b4a92a169ce09bc7c95@reply.github.com</a>><br class=""></span></div><br class=""><div class=""><meta http-equiv="Content-Type" content="text/html charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">what if OneOf<A, A>?</div><div class=""><br class=""></div><div class="">duplicate variable compile warning?</div><br class=""><div class=""><blockquote type="cite" class=""><div class="">在 2016年7月1日，20:59，Adrian Z. <<a href="mailto:notifications@github.com" class="">notifications@github.com</a>> 写道：</div><br class="Apple-interchange-newline"><div class=""><p class="">Just one simple thing to add:</p>
<ul class="">
<li class="">If <code class="">...T</code> equals 10 then <code class=""><...T, U></code> = 10 + 1 = 11 types</li>
<li class="">If <code class="">...U</code> equals 17 then <code class=""><T, ...U></code> = 1 + 17 = 18 types</li>
<li class="">If <code class="">...T</code> equals 20 and <code class="">...U</code>equals 22 then <code class=""><...T, ...U></code> = 20 + 22 = 42 types</li>
</ul><p style="font-size:small;-webkit-text-size-adjust:none;color:#666;" class="">—<br class="">You are receiving this because you were mentioned.<br class="">Reply to this email directly, <a href="https://github.com/apple/swift-evolution/pull/404#issuecomment-229940122" class="">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe/ABsfmhH9yasaWK8vAs17DGXWHV54QuCkks5qRQ9KgaJpZM4JC7-2" class="">mute the thread</a>.<img alt="" height="1" src="https://github.com/notifications/beacon/ABsfmkBzQ806lGj4BhEPjCfF9CGLNWbWks5qRQ9KgaJpZM4JC7-2.gif" width="1" class=""></p>
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