"use strict";
var windowOrGlobal = Function('return this')();
(function (root) {
    /* istanbul ignore next */
    if (typeof exports !== 'undefined') {
        /* istanbul ignore next */
        if (typeof module !== 'undefined' && module && module.exports) {
            exports = module.exports = clone;
        }
        exports.clone = clone;
    }
    else {
        /* istanbul ignore next */
        root.clone = clone;
    }
    function clone(value) {
        var type = typeof value;
        switch (type) {
            case 'object':
                // null and undefined
                if (value == null) {
                    return value;
                }
                var result = void 0;
                if (value instanceof Date) {
                    result = new Date();
                    result.setTime(value.getTime());
                    return result;
                }
                else if (value instanceof RegExp) {
                    result = newRegExp(value);
                    return result;
                }
                result = JSON.parse(JSON.stringify(value));
                fixTypes(value, result);
                return result;
            default:
                return value;
        }
    }
    function fixPropertyValue(original, copy, key) {
        var originalValue = original[key];
        var originalType = typeof originalValue;
        switch (originalType) {
            case 'object':
                if (originalValue instanceof Date) {
                    var newValue = new Date();
                    newValue.setTime(originalValue.getTime());
                    copy[key] = newValue;
                }
                else if (originalValue instanceof RegExp) {
                    copy[key] = newRegExp(originalValue);
                }
                else if (originalValue == null) {
                    copy[key] = originalValue;
                }
                else {
                    fixTypes(originalValue, copy[key]);
                }
                break;
            case 'number':
                if (isNaN(originalValue)) {
                    copy[key] = NaN;
                }
                else if (originalValue == Infinity) {
                    copy[key] = Infinity;
                }
                break;
            default:
                break;
        }
    }
    function fixTypes(original, copy) {
        if (original instanceof Array) {
            for (var index = 0; index < original.length; index++) {
                fixPropertyValue(original, copy, index);
            }
        }
        else {
            var keys = Object.getOwnPropertyNames(original);
            keys.forEach(function (key) {
                fixPropertyValue(original, copy, key);
            });
        }
    }
    function newRegExp(value) {
        var regexpText = String(value);
        var slashIndex = regexpText.lastIndexOf('/');
        return new RegExp(regexpText.slice(1, slashIndex), regexpText.slice(slashIndex + 1));
    }
})(windowOrGlobal);