1 var $ = require('../internals/export');
2 // TODO: in core-js@4, move /modules/ dependencies to public entries for better optimization by tools like `preset-env`
3 var Set = require('../modules/es.set');
4 var ReflectMetadataModule = require('../internals/reflect-metadata');
5 var anObject = require('../internals/an-object');
6 var getPrototypeOf = require('../internals/object-get-prototype-of');
7 var iterate = require('../internals/iterate');
9 var ordinaryOwnMetadataKeys = ReflectMetadataModule.keys;
10 var toMetadataKey = ReflectMetadataModule.toKey;
12 var from = function (iter) {
14 iterate(iter, result.push, result);
18 var ordinaryMetadataKeys = function (O, P) {
19 var oKeys = ordinaryOwnMetadataKeys(O, P);
20 var parent = getPrototypeOf(O);
21 if (parent === null) return oKeys;
22 var pKeys = ordinaryMetadataKeys(parent, P);
23 return pKeys.length ? oKeys.length ? from(new Set(oKeys.concat(pKeys))) : pKeys : oKeys;
26 // `Reflect.getMetadataKeys` method
27 // https://github.com/rbuckton/reflect-metadata
28 $({ target: 'Reflect', stat: true }, {
29 getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {
30 var targetKey = arguments.length < 2 ? undefined : toMetadataKey(arguments[1]);
31 return ordinaryMetadataKeys(anObject(target), targetKey);