<html><head></head><body bgcolor="#FFFFFF"><div>Applied. <br><br>Sent from my iPhone</div><div><br>On Nov 28, 2011, at 4:50 PM, "Chris Lattner" <<a href="mailto:clattner@apple.com">clattner@apple.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><br><div><div>On Nov 28, 2011, at 7:20 AM, Joe Abbey wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Internal API changes mentioned the Type system changes twice... merging. It should now read:<div><br></div><div><span class="Apple-style-span" style="font-family: Times; display: inline !important; float: none; ">The biggest and most pervasive change is that the type system has been rewritten:</span><span class="Apple-style-span" style="font-family: Times; display: inline !important; float: none; "> </span><code style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">PATypeHolder</code><span class="Apple-style-span" style="font-family: Times; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; display: inline !important; float: none; "> and </span><code style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">OpaqueType</code><span class="Apple-style-span" style="font-family: Times; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; display: inline !important; float: none; "> are gone, and all APIs deal with </span><code style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">Type*</code><span class="Apple-style-span" style="font-family: Times; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; display: inline !important; float: none; "> instead of </span><code style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">const Type*</code><span class="Apple-style-span" style="font-family: Times; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; display: inline !important; float: none; ">. If you need to create recursive structures, then create a named structure, and use </span><code style="color: rgb(0, 0, 0); font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; ">setBody()</code><span class="Apple-style-span" style="font-family: Times; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; display: inline !important; float: none; "> when all its elements are built. Type merging and refining is gone too: named structures are not merged with other structures, even if their layout is identical. (of course anonymous structures are still uniqued by layout).</span><br><div><br></div></div></div></blockquote><br></div><div>Looks good to me, please commit!</div><div><br></div><br></div></blockquote></body></html>