I&#39;m working on a project that looks like it&#39;ll need manual memory management (the end goal is to get it running on ARM using GDC, where the GC doesn&#39;t seem to behave (that goal might be unrealistic, but I can hope)), and I&#39;m trying to figure out how to deal with closures. My understanding is that a closure is a function pointer and the enclosing scope, whether that scope is variables that are copied into the closure or a class instance to use as &quot;this.&quot; Is this correct?<div>

<br></div><div>Assuming that&#39;s correct, this would involve a memory allocation, right?</div><div>----------</div><div>class Test {</div><div>void doStuff() {}</div><div>}</div><div><br></div><div>void doSomethingElse(void delegate() thing) {</div>

<div>thing();</div><div>}</div><div><br></div><div>void main() {</div><div>auto test = new Test();</div><div>doSomethingElse(&amp;test.doStuff);</div><div>}</div><div>----------</div><div><br></div><div>My understanding is that as soon as I run &quot;&amp;test.doStuff&quot; a closure is generated. Is this correct? Would it then be valid, in doSomethingElse, to run &quot;GC.free(thing)&quot; ?</div>

<div><br></div><div>Any insight would be appreciated.</div>