Function __toJSONSafe

CustomerManager/Scripts/breeze.debug.js:209–243

(obj, replacer)

    // safely perform toJSON logic on objects with cycles.
    function __toJSONSafe(obj, replacer) {
        if (obj !== Object(obj)) return obj; // primitive value
        if (obj._$visited) return undefined;
        if (obj.toJSON) {
            var newObj = obj.toJSON();
            if (newObj !== Object(newObj)) return newObj; // primitive value
            if (newObj !== obj) return __toJSONSafe(newObj);
            // toJSON returned the object unchanged.
            obj = newObj;
        }
        obj._$visited = true;
        var result;
        if (obj instanceof Array) {
            result = obj.map(function (o) {
                return __toJSONSafe(o, replacer);
            });
        } else if (typeof (obj) === "function") {
            result = undefined;
        } else {
            result = {};
            for (var prop in obj) {
                if (prop === "_$visited") continue;
                var val = obj[prop];
                if (replacer) {
                    val = replacer(prop, val);
                    if (val === undefined) continue;
                }
                val = __toJSONSafe(val);
                if (val === undefined) continue;
                result[prop] = val;
            }
        }
        delete obj._$visited;
        return result;
    }

    // resolves the values of a list of properties by checking each property in multiple sources until a value is found.
    function __resolveProperties(sources, propertyNames) {