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.error { color:#AA0000; }</style></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class="bloop_markdown"><p>The problem I was describing is about nested types named <code>.Type</code>, indeed. Assuming the proposal would go with <code>Type<T></code>, then it means you _might_ be able to create nested types called <code>Type</code>, but you always would need to call if through the whole namespace (e.g. <code>A.B.Type</code>). That is a huge downside.</p>
<p><code>Metatype</code> on the other hand describes exactly what that _thing_ really is.</p>
<p>Currently on a different branch I added this important note to the alternatives, but I’d rather use these types for the whole proposal.</p>
<blockquote>
<p>Assuming that the accepted proposal decides to use <strong><code>Metatype<T></code></strong>, <strong><code>AnyMetatype<T></code></strong> over <strong><code>Type<T></code></strong> and <strong><code>AnyType<T></code></strong> would imply that the type <code>Type</code> would no longer be ambiguous to use in custome modules. However, such naming choice will affect the <code>type(of:)</code> function. It <em>might</em> be necessary to align the function name to <code>metatype(of:)</code> to avoid any confusion, which will result in another breaking change. Alternatively we could leave the function as <code>func type<T>(of instance: T) -> AnyMetatype<T></code>.</p>
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<p>If we’re going for breaking changes again than I’d prefer to align the magical <code>type(of:)</code> function to <code>metatype(of:)</code>.</p>
<p>I’d love to hear more input on this.</p>
<p></p></div><div class="bloop_original_html"><style>body{font-family:Helvetica,Arial;font-size:13px}</style><div id="bloop_customfont" style="font-family:Helvetica,Arial;font-size:13px; color: rgba(0,0,0,1.0); margin: 0px; line-height: auto;"><br></div> <br> <div id="bloop_sign_1487436363898182912" class="bloop_sign"><div style="font-family:helvetica,arial;font-size:13px">-- <br>Adrian Zubarev<br>Sent with Airmail</div></div> <br><p class="airmail_on">Am 18. Februar 2017 um 17:00:27, Anton Zhilin (<a href="mailto:antonyzhilin@gmail.com">antonyzhilin@gmail.com</a>) schrieb:</p> <blockquote type="cite" class="clean_bq"><span><div><div></div><div>
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<p style="margin:0px 0px 1.2em!important"><code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline">
Type</code> is a bad name for a public type: <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline">
FooType</code> is almost always a better name. Libraries that
describe “just types”, Swift types, can as well use <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline">
Metatype</code> or <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline">
Mirror</code> or something.<br>
For nested types, like <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline">
Foo.Type</code>, in the meaning of “type of <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline">
Foo</code>“, <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline">
Type</code> can’t be used even now.<br>
I’d give up on <code style="font-size:0.85em;font-family:Consolas,Inconsolata,Courier,monospace;margin:0px 0.15em;padding:0px 0.3em;white-space:pre-wrap;border:1px solid rgb(234,234,234);background-color:rgb(248,248,248);border-radius:3px;display:inline">
Type</code> name for the greater future of metatypes.</p>
<p style="margin:0px 0px 1.2em!important">2017-02-18 16:28
GMT+03:00 Adrian Zubarev <<a href="mailto:adrian.zubarev@devandartist.com" target="_blank">adrian.zubarev@devandartist.com</a>>:</p>
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<p>Personally I’d prefer <code>Metatype<T></code> and
<code>AnyMetatype<T></code> to get rid of the restriction
where you mostly cannot create custom types called
<code>Type</code>, which annoys me a lot. Sometimes
<code>Kind</code> as a good workaround but there are times where
<code>Kind</code> doesn’t fit. :/</p>
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