sebastian-software/core

/*
==================================================================================================
  Core - JavaScript Foundation
  Copyright 2010-2012 Zynga Inc.
  Copyright 2012-2014 Sebastian Werner
==================================================================================================
*/

"use strict";

/**
 * Just a dump placeholder for environments without "console" object.
 *
 * Emulates just the basic logging methods with an empty function. Maps missing functions
 * to `console.log` automatically.
 *
 * If inside of web worker redirects console logging output to a message to main thread.
 * The message itself is an object containing both fields type="core/debug/(method)" and
 * msg=[..], e.g. { type: "core/debug/warn", msg: ["my warning"] }
 */
(function(global, slice)
{
    var methods = "log,debug,error,warn,info,timeStamp".split(",");
    var console = global.console || (global.console = {});

    if (jasy.Env.isSet("runtime", "worker"))
    {
        var workerConsoleGenerator = function(method)
        {
            return function() {
                self.postMessage({
                    type: "core/debug/" + method,
                    msg: Array.prototype.slice.call(arguments, 0)
                });
            };
        };

        for (var i=0, l=methods.length; i<l; i++)
        {
            var method = methods[i];
            console[method] = workerConsoleGenerator(method);
        }
    }
    else
    {
        var log = console.log || new Function;

        for (var i=0, l=methods.length; i<l; i++)
        {
            var name = methods[i];
            if (!console[name]) {
                console[name] = log;
            }
        }
    }

    if (!console.assert)
    {
        console.assert = function(expression)
        {
            if (!expression) {
                throw new Error(slice.call(arguments, 1).join(" "));
            }
        };
    }
})(core.Main.getGlobal(), Array.prototype.slice);