bob-gray/solv

/* istanbul ignore if */
if (typeof define !== "function") {
    var define = require("amdefine")(module);
}

define(function (require) {
    "use strict";

    require("../function/overload");
    require("../function/abstract");

    var ClassMaker = require("./class-maker");

    /*meta({
        "name": "createClass",
        "type": "function",
        "description": "Creates a new class",
        "arguments": [{
            "name": "options",
            "type": "object",
            "required": false,
            "description": "Class options",
            "properties": {
                "name": "string",
                "extends": "function",
                "mixins": "array|object|function",
                "arguments": "array"
            }
        }, {
            "name": "init",
            "type": "function",
            "required": false,
            "description": "This function is called from within the constructor. Use init to initialize new instances. The value of 'this' within init will be the new instance."
        }],
        "return": {
            "type": "function",
            "description": "Class constructor. Use constructor for other class setup tasks such as creating methods and setting up inheritance. Invoke this constructor with the new operator to create class instances."
        }
    })*/

    var createClass = new Function.Abstract("createClass")
            .overload("function?", createWithoutOptions)
            .overload("object,function?", create);

    function createWithoutOptions (init) {
        var options = {};

        return create(options, init);
    }

    function create (options, init) {
        var Class = new ClassMaker(options, init),
            Constructor = constructorFactory(Class);

        Class.setConstructor(Constructor);

        return Constructor;
    }

    function constructorFactory (Class) {
        function Constructor () {
            var initResult = this;

            Class.validateContext(this);
            Class.injectDefaultProperties(this);
            Class.injectPropertiesFromArgs(this, arguments);

            if (Class.hasInit()) {
                initResult = Class.init.apply(this, arguments);
            }

            return initResult;
        }

        if (Class.hasName()) {
            injectClassName();
        }

        function injectClassName () {
            /* jshint evil:true, -W021 */
            // useful for inspecting constructor names, safe to remove
            Constructor = Constructor.toString().replace("Constructor", Class.name);
            eval("Constructor = "+ Constructor +";");
            Class.Constructor = Constructor;
        }

        return Constructor;
    }

    return createClass;
});