1 function Sys$Enum$toString(value) {
5 var e = Function._validateParams(arguments, [
6 {name: "value", mayBeNull: true, optional: true}
7 ]);
8 if (e) throw e;
9 if ((typeof(value) === 'undefined') || (value === null)) return this.__string;
10 if ((typeof(value) != 'number') || ((value % 1) !== 0)) throw Error.argumentType('value', Object.getType(value), this);
11 var values = this.prototype;
12 var i;
13 if (!this.__flags || (value === 0)) {
14 for (i in values) {
15 if (values[i] === value) {
16 return i;
17 }
18 }
19 }
20 else {
21 var sorted = this.__sortedValues;
22 if (!sorted) {
23 sorted = [];
24 for (i in values) {
25 sorted[sorted.length] = {key: i, value: values[i]};
26 }
27 sorted.sort(function(a, b) {
28 return a.value - b.value;
29 });
30 this.__sortedValues = sorted;
31 }
32 var parts = [];
33 var v = value;
34 for (i = sorted.length - 1; i >= 0; i--) {
35 var kvp = sorted[i];
36 var vali = kvp.value;
37 if (vali === 0) continue;
38 if ((vali & value) === vali) {
39 parts[parts.length] = kvp.key;
40 v -= vali;
41 if (v === 0) break;
42 }
43 }
44 if (parts.length && v === 0) return parts.reverse().join(', ');
45 }
46 throw Error.argumentOutOfRange('value', value, String.format(Sys.Res.enumInvalidValue, value, this.__typeName));
47 }
