cacert-testmgr/external/ZendFramework-1.9.5/externals/dojo/dojox/lang/aspect/memoizer.js
Markus Warg 8398c9048d initially import ZendFramework-1.9.5 into repository
code was modified slightly, so the code differs from the original downloadable 1.9.5 version
2010-03-31 10:12:32 +02:00

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1.4 KiB
JavaScript

dojo.provide("dojox.lang.aspect.memoizer");
(function(){
var aop = dojox.lang.aspect;
var memoize1 = {
around: function(key){
var ctx = aop.getContext(), self = ctx.joinPoint, that = ctx.instance, t, u, ret;
if((t = that.__memoizerCache) && (t = t[self.targetName]) && (key in t)){
return t[key];
}
var ret = aop.proceed.apply(null, arguments);
if(!(t = that.__memoizerCache)){ t = that.__memoizerCache = {}; }
if(!(u = t[self.targetName])){ u = t[self.targetName] = {}; }
return u[key] = ret;
}
};
var memoizeN = function(/*Function*/keyMaker){
return {
around: function(/*arguments*/){
var ctx = aop.getContext(), self = ctx.joinPoint, that = ctx.instance, t, u, ret,
key = keyMaker.apply(that, arguments);
if((t = that.__memoizerCache) && (t = t[self.targetName]) && (key in t)){
return t[key];
}
var ret = aop.proceed.apply(null, arguments);
if(!(t = that.__memoizerCache)){ t = that.__memoizerCache = {}; }
if(!(u = t[self.targetName])){ u = t[self.targetName] = {}; }
return u[key] = ret;
}
};
};
aop.memoizer = function(/*Function?*/ keyMaker){
// summary:
// Returns an object, which can be used to count calls to methods.
//
// keyMaker:
// the function, which takes method's arguments and returns a key,
// which can be used to index the result.
return arguments.length == 0 ? memoize1 : memoizeN(keyMaker); // Object
};
})();