pmj

An Application may not download or install executable code.  Interpreted code may only 
be used in an Application if all scripts, code and interpreters are packaged in the Application and 
not downloaded. The only exception to the foregoing is scripts and code downloaded and run by 
Apple's built-in WebKit framework.

pmj

(defn memoize*
	"Like clojure.core/memoize, but the returned function's metadata contains an :invalidate function which completely resets the memory in the 0-ary form, or accepts the argument sequence for which to invalidate as its only argument."
	[f]
	(let [memo (atom {})]
		(with-meta
			(fn memoized [& args]
				(if-let [e (find @memo args)]
					(val e)
					(let [ret (apply f args)]
						(swap! memo assoc args ret)

pmj

// macro for declaring members with C++ types in Objective-C++ classes which should be #import-able by Objective-C

#ifdef __cplusplus
#define CPPCLASS(ns, cname) ns :: cname
#else
#define CPPCLASS(ns, cname) struct CPP_ ## ns ## _ ## cname
#endif

pmj

#include <stdio.h>

class A
{
	int answer;
public:
	A(int answer) :
		answer(answer)
	{
		printf("%i\n", answer);

pmj

/**
 * Runs the given function while locking (synchronising on) the specified object.
 *
 * This uses Rhino's sync() function, but is a lot more flexible, allowing
 * unbound functions and closures. May of course be nested, but beware of deadlocks.
 * @param {Object} obj JavaScript object to be locked.
 * @param {Function} fn The function to call from within a synchronised block.
 * @param [args...] Any number of additional arguments to pass to fn.
 * @returns The value returned from calling fn.
 *