<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=""><div><blockquote type="cite" class=""><div class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: 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;" class=""><div class=""><div class=""><br class=""></div><div class="">Another possibility I've thought of is defining `defer { val }` to guarantee that val remains alive until the defer fires on scope exit. That might let us leave `defer` as the one "guarantee something happens exactly at scope exit" language construct.</div></div></blockquote></div></blockquote><div><br class=""></div><div>What about this…</div><div><br class=""></div><div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Menlo;" class=""><span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">defer</span> <span style="font-variant-ligatures: no-common-ligatures; color: #bb2ca2" class="">let</span> val = grabOrCreateSomething() {</div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Menlo;" class=""> return;</div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Menlo; min-height: 15px;" class="">}</div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Menlo;" class=""><br class=""></div><div style="margin: 0px; line-height: normal;" class="">Seems natural once you learn guard.</div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Menlo;" class=""><br class=""></div></div><blockquote type="cite" class=""><div class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: 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;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: 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;" class=""><div class=""><div class=""><br class=""></div><div class="">-Joe</div><img src="https://u2002410.ct.sendgrid.net/wf/open?upn=eLFMrKDT8iBxZ-2Fbnk-2BZqvSchNN-2FvYXdceA0T7VxwkAfZkFBkIpfSdfu51Te4nvOnaPASGAdid7tzix9nY4Y70jUIGRwh7pdNGnbfJut0bjfxnBhg7VL5zrN8YBdUSmpFTm6JyDg3CprXc-2BZPpAobp7sDUBQu4-2Fhm8iI2ghv0wZljq0soR11nYWMkRfdKOISo-2FD1-2BIDoWJ9itvnWa9WM4U3LEw7Hi1iOHgUzEjWtjKx8-3D" alt="" width="1" height="1" border="0" style="height: 1px !important; 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