/
pulley.js
49 lines (45 loc) · 1.29 KB
/
pulley.js
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(function (self) {
"use strict";
var cache = null;
var thread = self.thread = {};
thread.init = function(data){
importScripts(data.library);
var library = self[data.name];
for(var key in library) {
register(key);
if(typeof library[key] === 'function') thread[key] = library[key];
}
send("ready");
return 0;
};
//Worker Messaging System
var context = {};
var send = function(type,data) { self.postMessage( {type:type,data:data} );};
var register = function(data) { send("register",data); };
var message = function(data) { send("message",data); };
self.onmessage = function(event) {
var data = event.data;
var params = data.params;
var types = data.types;
var id = data.id;
var type = data.type;
if (type ==='init') {
thread.init(data.data);
} else if (type ==='hoist') {
context = data.context;
} else if (type && typeof thread[type]==='function' && data.params instanceof Array) {
for(var args=[],i=0,l=data.params.length;i<l;i++) {
var obj = data.params[i], val;
if (obj.type==='function') {
var func = (eval("(" + obj.value + ")"));
val = function() { return func.apply(context,arguments); };
} else {
val = obj.value;
}
args.push(val);
}
thread[type].apply(self,args);
send(type + id, context);
}
};
})(self);