/*

YUI 3.10.3 (build 2fb5187)

Copyright 2013 Yahoo! Inc. All rights reserved.

Licensed under the BSD License.

http://yuilibrary.com/license/

*/

YUI.add('json-stringify', function (Y, NAME) {

/**

 * Provides Y.JSON.stringify method for converting objects to JSON strings.

 *

 * @module json

 * @submodule json-stringify

 * @for JSON

 * @static

 */

var COLON     = ':',

    _JSON     = Y.config.global.JSON;

Y.mix(Y.namespace('JSON'), {

    /**

     * Serializes a Date instance as a UTC date string.  Used internally by

     * stringify.  Override this method if you need Dates serialized in a

     * different format.

     *

     * @method dateToString

     * @param d {Date} The Date to serialize

     * @return {String} stringified Date in UTC format YYYY-MM-DDTHH:mm:SSZ

     * @deprecated Use a replacer function

     * @static

     */

    dateToString: function (d) {

        function _zeroPad(v) {

            return v < 10 ? '0' + v : v;

        }

        return d.getUTCFullYear()           + '-' +

              _zeroPad(d.getUTCMonth() + 1) + '-' +

              _zeroPad(d.getUTCDate())      + 'T' +

              _zeroPad(d.getUTCHours())     + COLON +

              _zeroPad(d.getUTCMinutes())   + COLON +

              _zeroPad(d.getUTCSeconds())   + 'Z';

    },

    /**

     * <p>Converts an arbitrary value to a JSON string representation.</p>

     *

     * <p>Objects with cyclical references will trigger an exception.</p>

     *

     * <p>If a whitelist is provided, only matching object keys will be

     * included.  Alternately, a replacer function may be passed as the

     * second parameter.  This function is executed on every value in the

     * input, and its return value will be used in place of the original value.

     * This is useful to serialize specialized objects or class instances.</p>

     *

     * <p>If a positive integer or non-empty string is passed as the third

     * parameter, the output will be formatted with carriage returns and

     * indentation for readability.  If a String is passed (such as "\t") it

     * will be used once for each indentation level.  If a number is passed,

     * that number of spaces will be used.</p>

     *

     * @method stringify

     * @param o {MIXED} any arbitrary value to convert to JSON string

     * @param w {Array|Function} (optional) whitelist of acceptable object

     *                  keys to include, or a replacer function to modify the

     *                  raw value before serialization

     * @param ind {Number|String} (optional) indentation character or depth of

     *                  spaces to format the output.

     * @return {string} JSON string representation of the input

     * @static

     */

    stringify: function () {

        return _JSON.stringify.apply(_JSON, arguments);

    },

    /**

     * <p>Number of occurrences of a special character within a single call to

     * stringify that should trigger promotion of that character to a dedicated

     * preprocess step for future calls.  This is only used in environments

     * that don't support native JSON, or when useNativeJSONStringify is set to

     * false.</p>

     *

     * <p>So, if set to 50 and an object is passed to stringify that includes

     * strings containing the special character \x07 more than 50 times,

     * subsequent calls to stringify will process object strings through a

     * faster serialization path for \x07 before using the generic, slower,

     * replacement process for all special characters.</p>

     *

     * <p>To prime the preprocessor cache, set this value to 1, then call

     * <code>Y.JSON.stringify("<em>(all special characters to

     * cache)</em>");</code>, then return this setting to a more conservative

     * value.</p>

     *

     * <p>Special characters \ " \b \t \n \f \r are already cached.</p>

     *

     * @property charCacheThreshold

     * @static

     * @default 100

     * @type {Number}

     */

    charCacheThreshold: 100

});

}, '3.10.3', {"requires": ["yui-base"]});