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05948d8e4e
This paves the way for removing `vm.runInDebugContext()`. Inspection of Map and Set iterators is now done through V8 instrinsics. Fixes: https://github.com/nodejs/node/issues/11875 PR-URL: https://github.com/nodejs/node/pull/13295 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Franziska Hinkelmann <franziska.hinkelmann@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Robert Jefe Lindstaedt <robert.lindstaedt@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Timothy Gu <timothygu99@gmail.com>
22 lines
380 B
JavaScript
22 lines
380 B
JavaScript
'use strict';
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function take(it, n) {
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const result = [];
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for (const e of it) {
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if (--n < 0)
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break;
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result.push(e);
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}
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return result;
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}
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function previewMapIterator(it, n) {
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return take(%MapIteratorClone(it), n);
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}
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function previewSetIterator(it, n) {
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return take(%SetIteratorClone(it), n);
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}
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module.exports = { previewMapIterator, previewSetIterator };
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