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Last change
on this file was 79a0317, checked in by stefan toskovski <stefantoska84@…>, 3 days ago |
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File size:
680 bytes
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| 1 | 'use strict';
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| 2 | // https://github.com/tc39/proposal-explicit-resource-management
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| 3 | var call = require('../internals/function-call');
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| 4 | var defineBuiltIn = require('../internals/define-built-in');
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| 5 | var getMethod = require('../internals/get-method');
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| 6 | var hasOwn = require('../internals/has-own-property');
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| 7 | var wellKnownSymbol = require('../internals/well-known-symbol');
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| 8 | var IteratorPrototype = require('../internals/iterators-core').IteratorPrototype;
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| 9 |
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| 10 | var DISPOSE = wellKnownSymbol('dispose');
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| 11 |
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| 12 | if (!hasOwn(IteratorPrototype, DISPOSE)) {
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| 13 | defineBuiltIn(IteratorPrototype, DISPOSE, function () {
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| 14 | var $return = getMethod(this, 'return');
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| 15 | if ($return) call($return, this);
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| 16 | });
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| 17 | }
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