1 | 'use strict';
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2 |
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3 | var $ = require('../internals/export');
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4 | var uncurryThis = require('../internals/function-uncurry-this');
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5 | var ReflectMetadataModule = require('../internals/reflect-metadata');
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6 | var anObject = require('../internals/an-object');
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7 | var getPrototypeOf = require('../internals/object-get-prototype-of');
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8 | var $arrayUniqueBy = require('../internals/array-unique-by');
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9 |
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10 | var arrayUniqueBy = uncurryThis($arrayUniqueBy);
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11 | var concat = uncurryThis([].concat);
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12 | var ordinaryOwnMetadataKeys = ReflectMetadataModule.keys;
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13 | var toMetadataKey = ReflectMetadataModule.toKey;
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14 |
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15 | var ordinaryMetadataKeys = function (O, P) {
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16 | var oKeys = ordinaryOwnMetadataKeys(O, P);
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17 | var parent = getPrototypeOf(O);
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18 | if (parent === null) return oKeys;
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19 | var pKeys = ordinaryMetadataKeys(parent, P);
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20 | return pKeys.length ? oKeys.length ? arrayUniqueBy(concat(oKeys, pKeys)) : pKeys : oKeys;
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21 | };
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22 |
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23 |
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24 |
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25 | $({ target: 'Reflect', stat: true }, {
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26 | getMetadataKeys: function getMetadataKeys(target /* , targetKey */) {
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27 | var targetKey = arguments.length < 2 ? undefined : toMetadataKey(arguments[1]);
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28 | return ordinaryMetadataKeys(anObject(target), targetKey);
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29 | }
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30 | });
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