45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
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'use strict';
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var ES = require('es-abstract/es7');
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var defineProperty = Object.defineProperty;
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var getDescriptor = Object.getOwnPropertyDescriptor;
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var getOwnNames = Object.getOwnPropertyNames;
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var getSymbols = Object.getOwnPropertySymbols;
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var concat = Function.call.bind(Array.prototype.concat);
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var reduce = Function.call.bind(Array.prototype.reduce);
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var getAll = getSymbols ? function (obj) {
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return concat(getOwnNames(obj), getSymbols(obj));
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} : getOwnNames;
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var isES5 = ES.IsCallable(getDescriptor) && ES.IsCallable(getOwnNames);
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var safePut = function put(obj, prop, val) { // eslint-disable-line max-params
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if (defineProperty && prop in obj) {
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defineProperty(obj, prop, {
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configurable: true,
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enumerable: true,
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value: val,
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writable: true
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});
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} else {
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obj[prop] = val;
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}
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};
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module.exports = function getOwnPropertyDescriptors(value) {
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ES.RequireObjectCoercible(value);
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if (!isES5) {
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throw new TypeError('getOwnPropertyDescriptors requires Object.getOwnPropertyDescriptor');
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}
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var O = ES.ToObject(value);
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return reduce(getAll(O), function (acc, key) {
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var descriptor = getDescriptor(O, key);
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if (typeof descriptor !== 'undefined') {
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safePut(acc, key, descriptor);
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}
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return acc;
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}, {});
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};
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