mirror of https://github.com/jkjoy/sunpeiwen.git
19 lines
624 B
JavaScript
19 lines
624 B
JavaScript
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'use strict';
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var $export = require('./_export');
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var toObject = require('./_to-object');
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var toPrimitive = require('./_to-primitive');
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var getPrototypeOf = require('./_object-gpo');
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var getOwnPropertyDescriptor = require('./_object-gopd').f;
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// B.2.2.4 Object.prototype.__lookupGetter__(P)
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require('./_descriptors') && $export($export.P + require('./_object-forced-pam'), 'Object', {
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__lookupGetter__: function __lookupGetter__(P) {
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var O = toObject(this);
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var K = toPrimitive(P, true);
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var D;
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do {
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if (D = getOwnPropertyDescriptor(O, K)) return D.get;
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} while (O = getPrototypeOf(O));
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}
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});
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