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.send { color:#77bb77; }
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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>I don’t have more precise examples except something like TCP socket error codes as an enum. The example with the number literal is actually really good, because it also shows the bad sides of the pitch. However we could allow numerical enum cases without any issues right?</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_1489045421004600064" 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 9. März 2017 um 08:41:13, Slava Pestov (<a href="mailto:spestov@apple.com">spestov@apple.com</a>) schrieb:</p> <blockquote type="cite" class="clean_bq"><span><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div></div><div>
<title></title>
<br class="">
<div>
<blockquote type="cite" class="">
<div class="">On Mar 8, 2017, at 11:33 PM, Adrian Zubarev 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 class="bloop_markdown" style="font-family: Helvetica, Arial; font-size: 13px; 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; background-color: rgb(254, 254, 254);">
<p style="margin: 15px 0px; -webkit-margin-before: 0px;" class="">I
forget to mention, this should be also valid:</p>
<pre style="margin: 15px 0px; font-family: Menlo, Consolas, 'Liberation Mono', Courier, monospace; font-size: 10pt; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; background-color: rgb(248, 248, 248); color: inherit; border: 1px solid rgb(204, 204, 204); overflow: auto; padding: 4px 8px; word-break: normal; word-wrap: normal;" class=""><code class="swift" style="font-family: Menlo, Consolas, 'Liberation Mono', Courier, monospace; font-size: 10pt; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; background-color: rgb(248, 248, 248); color: inherit; border: 0px; margin: 0px; padding: 0px; word-break: normal; word-wrap: normal; -webkit-margin-before: 0px;">let `42` = 42
print(`42`)
struct A {
let `0` = 0
}
let number = A().0
</code></pre>
<div style="margin: 15px 0px;" class=""><br class="webkit-block-placeholder"></div>
</div>
</div>
</blockquote>
<div>-1</div>
<div><br class=""></div>
<div>This seems really confusing.</div>
<div><br class=""></div>
<div>extension Int { var `0`: Int { return 0 } }</div>
<div><br class=""></div>
<div>3.0 // is this a float literal?</div>
<div>3 .0 // member access?</div>
<div>.0 // this is actually a contextual member access, and not a
literal ‘0.0’?</div>
<div><br class=""></div>
<div> I’d prefer if .0, .1, … were reserved for tuple fields;
.0 is already not very descriptive, but at the very least if you
see it in source code you know you have a tuple type and not
something else.</div>
<div><br class=""></div>
<div>Also the compiler’s name mangling relies on the fact that
identifiers never begin with a numeric character or symbol.</div>
<div><br class=""></div>
<div>Can you give a motivating example where allowing an identifier
to start with a number actually helps readability?</div>
<div><br class=""></div>
<div>Slava</div>
<div><br class=""></div>
<br class="">
<blockquote type="cite" class="">
<div class="">
<div class="bloop_original_html" style="font-family: Helvetica, Arial; font-size: 13px; 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; background-color: rgb(254, 254, 254);">
<div id="bloop_customfont" style="font-family: Helvetica, Arial; font-size: 13px; margin: 0px;" class=""><br class=""></div>
<br class="">
<div id="bloop_sign_1489044670460260864" class="bloop_sign">
<div style="font-family: helvetica, arial; font-size: 13px;" class="">-- <br class="">
Adrian Zubarev<br class="">
Sent with Airmail</div>
</div>
<br class="">
<p class="airmail_on" style="margin: 15px 0px;">Am 9. März 2017 um
08:24:54, Adrian Zubarev (<a href="mailto:adrian.zubarev@devandartist.com" style="color: rgb(65, 131, 196); background-color: inherit; text-decoration: none;" class="">adrian.zubarev@devandartist.com</a>) schrieb:</p>
<blockquote type="cite" class="clean_bq" style="margin: 15px 0px;">
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">
<div class=""></div>
<div class="">
<div class="bloop_markdown">
<p style="margin: 15px 0px; -webkit-margin-before: 0px;" class="">
<span style="margin-top: 0px; margin-bottom: 0px;" class="">Hi
Swift community, I’d like to pitch this idea again.</span></p>
<p style="margin: 15px 0px;" class=""><span style="margin-top: 0px; margin-bottom: 0px;" class="">Swift already has
the pitched feature, but it is exclusive for tuples
only.<span class="Apple-converted-space"> </span><strong style="-webkit-margin-before: 0px;" class="">SE–0071</strong><span class="Apple-converted-space"> </span>allowed the use of keywords
after the<span class="Apple-converted-space"> </span><code style="font-family: Menlo, Consolas, 'Liberation Mono', Courier, monospace; font-size: 10pt; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; background-color: rgb(248, 248, 248); color: inherit; border: 1px solid rgb(234, 234, 234); margin: 0px 2px; padding: 0px 5px; word-break: normal; word-wrap: normal;" class="">.</code><span class="Apple-converted-space"> </span>in a member access, except for
those keywords that have special meaning by using back-ticks.
However, members starting with numbers are not special keywords and
as already mentioned, numerical members are already allowed in
tuples.</span></p>
<p style="margin: 15px 0px;" class="">I propose to extend that
capability to the whole language and make that behavior consistent.
To disambiguate members starting with a number one would need to
use back-ticks.</p>
<pre style="margin: 15px 0px; font-family: Menlo, Consolas, 'Liberation Mono', Courier, monospace; font-size: 10pt; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; background-color: rgb(248, 248, 248); color: inherit; border: 1px solid rgb(204, 204, 204); overflow: auto; padding: 4px 8px; word-break: normal; word-wrap: normal;" class=""><code class="swift" style="font-family: Menlo, Consolas, 'Liberation Mono', Courier, monospace; font-size: 10pt; border-top-left-radius: 3px; border-top-right-radius: 3px; border-bottom-right-radius: 3px; border-bottom-left-radius: 3px; background-color: rgb(248, 248, 248); color: inherit; border: 0px; margin: 0px; padding: 0px; word-break: normal; word-wrap: normal; -webkit-margin-before: 0px;">// Enum
enum ErrorCode : String {
case `2345` = "my description for 2345"
case `123a` = "my description for 123a"
case `123b` = "my description for 123b"
}
let code = ErrorCode.2345
// Function
func `42foo`(label: Type, `12345`: Type, `0987something`: Type) { … }
// Tuple
(`1`: Int, `2`: Int)
</code></pre>
<p style="margin: 15px 0px;" class="">My question is: would that be
in scope for Swift 4?</p>
</div>
<div class="bloop_original_html">
<div id="bloop_customfont" style="font-family: Helvetica, Arial; font-size: 13px; margin: 0px;" class=""><br class=""></div>
<br class="">
<div id="bloop_sign_1489043043819660032" class="bloop_sign">
<div style="font-family: helvetica, arial; font-size: 13px;" class="">-- <br class="">
Adrian Zubarev<br class="">
Sent with Airmail</div>
</div>
</div>
<div class="bloop_markdown"></div>
</div>
</div>
</blockquote>
</div>
<div class="bloop_markdown" style="font-family: Helvetica, Arial; font-size: 13px; 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; background-color: rgb(254, 254, 254);">
<div style="margin: 15px 0px; -webkit-margin-before: 0px;" class=""><br class="webkit-block-placeholder"></div>
</div>
<span style="font-family: Helvetica, Arial; font-size: 13px; 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; background-color: rgb(254, 254, 254); float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: Helvetica, Arial; font-size: 13px; 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; background-color: rgb(254, 254, 254);" class="">
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</blockquote>
</div>
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</div></div></span></blockquote></div><div class="bloop_markdown"><p></p></div></body></html>