1 | var $ = require('../internals/export');
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2 |
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3 | var Set = require('../modules/es.set');
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4 | var ReflectMetadataModule = require('../internals/reflect-metadata');
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5 | var anObject = require('../internals/an-object');
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6 | var getPrototypeOf = require('../internals/object-get-prototype-of');
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7 | var iterate = require('../internals/iterate');
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8 |
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9 | var ordinaryOwnMetadataKeys = ReflectMetadataModule.keys;
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10 | var toMetadataKey = ReflectMetadataModule.toKey;
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11 |
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12 | var from = function (iter) {
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13 | var result = [];
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14 | iterate(iter, result.push, result);
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15 | return result;
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16 | };
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17 |
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18 | var ordinaryMetadataKeys = function (O, P) {
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19 | var oKeys = ordinaryOwnMetadataKeys(O, P);
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20 | var parent = getPrototypeOf(O);
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21 | if (parent === null) return oKeys;
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22 | var pKeys = ordinaryMetadataKeys(parent, P);
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23 | return pKeys.length ? oKeys.length ? from(new Set(oKeys.concat(pKeys))) : pKeys : oKeys;
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24 | };
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25 |
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26 |
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27 |
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28 | $({ target: 'Reflect', stat: true }, {
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29 | getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {
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30 | var targetKey = arguments.length < 2 ? undefined : toMetadataKey(arguments[1]);
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31 | return ordinaryMetadataKeys(anObject(target), targetKey);
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32 | }
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33 | });
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