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'use strict';
var array = [].constructor;
/**
* @ngdoc function
* @name angular.toJson
* @function
*
* @description
* Serializes input into a JSON-formatted string.
*
* @param {Object|Array|Date|string|number} obj Input to be serialized into JSON.
* @param {boolean=} pretty If set to true, the JSON output will contain newlines and whitespace.
* @returns {string} Jsonified string representing `obj`.
*/
function toJson(obj, pretty) {
var buf = [];
toJsonArray(buf, obj, pretty ? "\n " : null, []);
return buf.join('');
}
/**
* @ngdoc function
* @name angular.fromJson
* @function
*
* @description
* Deserializes a JSON string.
*
* @param {string} json JSON string to deserialize.
* @param {boolean} [useNative=false] Use native JSON parser, if available.
* @returns {Object|Array|Date|string|number} Deserialized thingy.
*/
function fromJson(json, useNative) {
if (!isString(json)) return json;
var obj;
try {
if (useNative && window.JSON && window.JSON.parse) {
obj = JSON.parse(json);
} else {
obj = parseJson(json, true)();
}
return transformDates(obj);
} catch (e) {
error("fromJson error: ", json, e);
throw e;
}
// TODO make forEach optionally recursive and remove this function
// TODO(misko): remove this once the $http service is checked in.
function transformDates(obj) {
if (isString(obj) && obj.length === DATE_ISOSTRING_LN) {
return jsonStringToDate(obj);
} else if (isArray(obj) || isObject(obj)) {
forEach(obj, function(val, name) {
obj[name] = transformDates(val);
});
}
return obj;
}
}
var R_ISO8061_STR = /^(\d{4})-(\d\d)-(\d\d)(?:T(\d\d)(?:\:(\d\d)(?:\:(\d\d)(?:\.(\d{3}))?)?)?Z)?$/;
function jsonStringToDate(string){
var match;
if (isString(string) && (match = string.match(R_ISO8061_STR))){
var date = new Date(0);
date.setUTCFullYear(match[1], match[2] - 1, match[3]);
date.setUTCHours(match[4]||0, match[5]||0, match[6]||0, match[7]||0);
return date;
}
return string;
}
function jsonDateToString(date){
if (!date) return date;
var isoString = date.toISOString ? date.toISOString() : '';
return (isoString.length==24)
? isoString
: padNumber(date.getUTCFullYear(), 4) + '-' +
padNumber(date.getUTCMonth() + 1, 2) + '-' +
padNumber(date.getUTCDate(), 2) + 'T' +
padNumber(date.getUTCHours(), 2) + ':' +
padNumber(date.getUTCMinutes(), 2) + ':' +
padNumber(date.getUTCSeconds(), 2) + '.' +
padNumber(date.getUTCMilliseconds(), 3) + 'Z';
}
function quoteUnicode(string) {
var chars = ['"'];
for ( var i = 0; i < string.length; i++) {
var code = string.charCodeAt(i);
var ch = string.charAt(i);
switch(ch) {
case '"': chars.push('\\"'); break;
case '\\': chars.push('\\\\'); break;
case '\n': chars.push('\\n'); break;
case '\f': chars.push('\\f'); break;
case '\r': chars.push(ch = '\\r'); break;
case '\t': chars.push(ch = '\\t'); break;
default:
if (32 <= code && code <= 126) {
chars.push(ch);
} else {
var encode = "000" + code.toString(16);
chars.push("\\u" + encode.substring(encode.length - 4));
}
}
}
chars.push('"');
return chars.join('');
}
function toJsonArray(buf, obj, pretty, stack) {
if (isObject(obj)) {
if (obj === window) {
buf.push('WINDOW');
return;
}
if (obj === document) {
buf.push('DOCUMENT');
return;
}
if (includes(stack, obj)) {
buf.push('RECURSION');
return;
}
stack.push(obj);
}
if (obj === null) {
buf.push($null);
} else if (obj instanceof RegExp) {
buf.push(quoteUnicode(obj.toString()));
} else if (isFunction(obj)) {
return;
} else if (isBoolean(obj)) {
buf.push('' + obj);
} else if (isNumber(obj)) {
if (isNaN(obj)) {
buf.push($null);
} else {
buf.push('' + obj);
}
} else if (isString(obj)) {
return buf.push(quoteUnicode(obj));
} else if (isObject(obj)) {
if (isArray(obj)) {
buf.push("[");
var len = obj.length;
var sep = false;
for(var i=0; i<len; i++) {
var item = obj[i];
if (sep) buf.push(",");
if (!(item instanceof RegExp) && (isFunction(item) || isUndefined(item))) {
buf.push($null);
} else {
toJsonArray(buf, item, pretty, stack);
}
sep = true;
}
buf.push("]");
} else if (isElement(obj)) {
// TODO(misko): maybe in dev mode have a better error reporting?
buf.push('DOM_ELEMENT');
} else if (isDate(obj)) {
buf.push(quoteUnicode(jsonDateToString(obj)));
} else {
buf.push("{");
if (pretty) buf.push(pretty);
var comma = false;
var childPretty = pretty ? pretty + " " : false;
var keys = [];
for(var k in obj) {
if (k!='this' && k!='$parent' && k.substring(0,2) != '$$' && obj.hasOwnProperty(k) && obj[k] !== undefined) {
keys.push(k);
}
}
keys.sort();
for ( var keyIndex = 0; keyIndex < keys.length; keyIndex++) {
var key = keys[keyIndex];
var value = obj[key];
if (!isFunction(value)) {
if (comma) {
buf.push(",");
if (pretty) buf.push(pretty);
}
buf.push(quoteUnicode(key));
buf.push(":");
toJsonArray(buf, value, childPretty, stack);
comma = true;
}
}
buf.push("}");
}
}
if (isObject(obj)) {
stack.pop();
}
}
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