<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="">map and dictionary syntax would not go together. map (or any function that takes a block of code) takes a block of functional code that applies that function to all elements of a collection (potentially value/optional) . The map idea was to extend this to allow pattern matching through { caseClauses } [also known as unary functions in another language].<div class=""><br class=""></div><div class="">{ caseClauses } expands to { caseClause [in :] ….. caseClause [in :] ….. etc. }</div><div class=""><div class=""><br class=""></div><div class="">The multi-case ternary idea is a very very specialized case — and to me it looks like it would only allow things like a c/enum type switch returning values?</div><div class=""><br class=""></div><div class="">Whereas expanding map to allow caseClauses would allow for more functionality, things like returning functions based on pattern matching which would then be used later for other calculations etc. — as well as giving the simple functionality of a switch expression.</div><div class=""><br class=""></div><div class=""><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">func</span> interestCalculationA(balance: <span style="font-variant-ligatures: no-common-ligatures; color: #703daa" class="">Double</span>) -> <span style="font-variant-ligatures: no-common-ligatures; color: #703daa" class="">Double</span> {</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> <span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">let</span> mockValue = <span style="font-variant-ligatures: no-common-ligatures; color: #272ad8" class="">1.00</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> <span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">return</span> mockValue</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">}</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">func</span> interestCalculationB(balance: <span style="font-variant-ligatures: no-common-ligatures; color: #703daa" class="">Double</span>) -> <span style="font-variant-ligatures: no-common-ligatures; color: #703daa" class="">Double</span> {</div><p style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""> <br class="webkit-block-placeholder"></p><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> <span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">let</span> mockValue = <span style="font-variant-ligatures: no-common-ligatures; color: #272ad8" class="">2.00</span></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> <span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">return</span> mockValue</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">}</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">let</span> interestCalc : <span style="font-variant-ligatures: no-common-ligatures; color: #703daa" class="">Double</span> -> <span style="font-variant-ligatures: no-common-ligatures; color: #703daa" class="">Double</span> = <span style="font-variant-ligatures: no-common-ligatures; color: #4f8187" class="">products</span>.map {</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> <span style="color: rgb(187, 44, 162);" class="">case</span> .LiquidProduct:</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> interestCalculationA</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> <span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">case</span> .TermProduct:</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""> interestCalculationB</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><div style="margin: 0px; line-height: normal;" class=""> <span style="color: rgb(187, 44, 162);" class="">case</span> .ThirdProduct:</div><div style="margin: 0px; line-height: normal;" class=""> interestCalculationB</div></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class="">}</div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo; min-height: 13px;" class=""><br class=""></div><div style="margin: 0px; font-size: 11px; line-height: normal; font-family: Menlo;" class=""><div style="margin: 0px; line-height: normal;" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">let</span> interest = <span style="font-variant-ligatures: no-common-ligatures; color: #4f8187" class="">interestCalc</span>.<span style="font-variant-ligatures: no-common-ligatures; color: #3d1d81" class="">map</span> {x <span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">in</span> x(<span style="font-variant-ligatures: no-common-ligatures; color: #272ad8" class="">100.00</span>)}</div></div></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 2016-01-10, at 8:58:42, Charles Constant 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" class=""><div class=""><br class=""></div><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class=""><span style="white-space:pre-wrap" class=""> </span>let num = color.</b><b style="font-size:13px;font-family:Arial" class=""><font color="#008cb4" class="">map </font>{</b><br style="font-size:13px" class=""><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class=""><span style="white-space:pre-wrap" class=""> </span></b><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class=""><span style="white-space:pre-wrap" class=""> </span></b><b style="font-size:13px;font-family:Arial" class=""><font color="#4f7a28" class="">.Red:</font></b><b style="font-size:13px;font-family:Arial;color:rgb(227,36,0)" class=""> </b><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class="">100,</b><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class=""> </b><br style="font-size:13px" class=""><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class=""><span style="white-space:pre-wrap" class=""> </span></b><b style="font-size:13px;font-family:Arial" class=""><span style="white-space:pre-wrap" class=""><font color="#606060" class=""> </font><font color="#4f7a28" class="">.</font></span></b><b style="font-size:13px;font-family:Arial" class=""><font color="#4f7a28" class="">Green: </font></b><span style="font-size:13px" class=""> </span><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class="">200</b><b style="font-size:13px;font-family:Arial" class=""><font color="#e32400" class="">,</font></b><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class=""> </b><br style="font-size:13px" class=""><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class=""><span style="white-space:pre-wrap" class=""> </span></b><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class=""><span style="white-space:pre-wrap" class=""> </span></b><b style="font-size:13px;font-family:Arial" class=""><font color="#4f7a28" class="">.Blue</font><font color="#e32400" class="">: </font></b><b style="font-size:13px;color:rgb(96,96,96);font-family:Arial" class="">300</b><b style="font-size:13px;font-family:Arial" class=""><font color="#e32400" class="">,</font></b><br style="font-size:13px" class=""><div style="word-wrap:break-word" class=""><div dir="ltr" class=""><div style="font-size:13px;margin:0px;line-height:normal;font-family:Arial" class=""><b style="color:rgb(96,96,96)" class=""><span style="white-space:pre-wrap" class=""> </span></b><b style="color:rgb(96,96,96)" class=""><span style="white-space:pre-wrap" class=""> </span></b><b class=""><font color="#4f7a28" class="">_</font></b><b style="color:rgb(227,36,0)" class=""> : </b><b style="color:rgb(96,96,96)" class="">-1</b><b style="color:rgb(227,36,0)" class=""> </b></div><div style="font-size:13px;margin:0px;line-height:normal;font-family:Arial" class=""><b class=""><span style="color:rgb(227,36,0);white-space:pre-wrap" class=""> </span>}</b></div><div style="font-size:13px;margin:0px;line-height:normal;font-family:Arial" class=""><b class=""><br class=""></b></div><div style="font-size:13px;margin:0px;line-height:normal;font-family:Arial" class=""><b class=""><br class=""></b></div><div style="margin:0px;line-height:normal" class="">Looks like I forgot to mention what my previous message regards: I mean that if we go with "map", I prefer the version that doesn't require "case" be written.<br class=""></div><div style="font-size:13px;margin:0px;line-height:normal;font-family:Arial" class=""><span style="font-family:arial,sans-serif" class=""><br class=""></span></div><div style="margin:0px;line-height:normal" class="">I also realize whether we're verbose enough depends on how commonly people use this type of expression. If it is accepted, but unpopular, then I'd concede "verbose" makes more sense. </div><div style="margin:0px;line-height:normal" class=""><br class=""></div><div style="margin:0px;line-height:normal" class="">Anyways, I'll try to lurk for a while now, instead of posting, as I'm veering toward the bike-shed :)</div><div style="margin:0px;line-height:normal" class=""><br class=""></div></div></div><div class="gmail_extra"><br class=""></div></div>
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