http://dev.clojure.org/jira This file is an XML representation of an issue en-us 4.4 649 25-07-2011 http://dev.clojure.org/jira/browse/MATCH-4 core.match <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">(match [x] [({:a 0 :b 1} :type Foo)] :a0 ...)</pre> </div></div> <p>:a and :b would be converted to field access, i.e. (.a x)</p> <p>As with primitive array matching, we should do an instance check followed by hinted field access.</p> <p>We should consider adopting the deftype/record syntax.</p> MATCH-4

Optimized pattern matching on deftype/record, POJOs

Enhancement Major Open Unresolved David Nolen David Nolen Sun, 4 Sep 2011 09:56:54 -0500 Thu, 27 Oct 2011 23:42:15 -0500 0 0 <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">(match [x] [^Foo {.-bar 5 .-baz 7}] :a0 [^Foo {.-bar _ .-woz 8}] :a1 :<span class="code-keyword">else</span> :a2)</pre> </div></div> <p>Given the recent ClojureScript property access discussions this seems like an acceptable syntax for high-performance property access.</p> <p>Maybe:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">(match [^Foo x] [{.-bar 5 .-baz 7}] :a0 [{.-bar _ .-woz 8}] :a1 :<span class="code-keyword">else</span> :a2)</pre> </div></div> <p>But probably not since then we should probably throw if someone tries to declare a different type in the row.</p> Global Rank