<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><blockquote type="cite" class=""><div class="">On Nov 20, 2017, at 10:50 AM, Slava Pestov via swift-evolution <<a href="mailto:swift-evolution@swift.org" class="">swift-evolution@swift.org</a>> wrote:</div><div class=""><br class="Apple-interchange-newline"><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="">What if you write ‘let fn = obj.method’?</span></div></blockquote><br class=""></div><div class="">Since Ruby doesn't distinguish between properties and methods, I would write the `subscript(dynamicProperty:)` getter to be equivalent to a zero-argument method call. This is a pragmatic tradeoff—property access is *way* more common than uncalled method access.</div><div class=""><br class=""></div><div class="">I assume that Swift would send `rubyObject.someMethod(_:_:)` through a method-related call, not a property-related one. Having a way to unambiguously specify a zero-argument method would allow the uncalled syntax to be used with Ruby methods which would otherwise be interpreted as properties.</div><div class=""><br class=""></div><div class="">(The setter on properties would handle the problem of Ruby's `=` methods. As for `?` and `!`, unless we extend the `identifier` syntax to allow non-identifier characters, I'd actually be tempted to bridge them with `is` and `unsafe` prefixes respectively. That might be a little too cute, though.)</div><br class=""><div class="">
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div class=""><div style="font-size: 12px; " class="">-- </div><div style="font-size: 12px; " class="">Brent Royal-Gordon</div><div style="font-size: 12px; " class="">Architechies</div></div></span>
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