18 lines
680 B
JavaScript
18 lines
680 B
JavaScript
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'use strict';
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// https://github.com/tc39/proposal-explicit-resource-management
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var call = require('../internals/function-call');
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var defineBuiltIn = require('../internals/define-built-in');
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var getMethod = require('../internals/get-method');
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var hasOwn = require('../internals/has-own-property');
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var wellKnownSymbol = require('../internals/well-known-symbol');
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var IteratorPrototype = require('../internals/iterators-core').IteratorPrototype;
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var DISPOSE = wellKnownSymbol('dispose');
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if (!hasOwn(IteratorPrototype, DISPOSE)) {
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defineBuiltIn(IteratorPrototype, DISPOSE, function () {
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var $return = getMethod(this, 'return');
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if ($return) call($return, this);
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});
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}
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