mirror of https://gitee.com/openkylin/nodejs.git
39 lines
1.0 KiB
JavaScript
39 lines
1.0 KiB
JavaScript
// Flags: --expose-internals --no-warnings
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const {
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JSTransferable, kTransfer, kTransferList
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} = require('internal/worker/js_transferable');
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const { MessageChannel } = require('worker_threads');
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// Transferring a JSTransferable that refers to another, untransferable, value
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// in its transfer list should not crash hard.
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class OuterTransferable extends JSTransferable {
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constructor() {
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super();
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// Create a detached MessagePort at this.inner
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const c = new MessageChannel();
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this.inner = c.port1;
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c.port2.postMessage(this.inner, [ this.inner ]);
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}
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[kTransferList] = common.mustCall(() => {
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return [ this.inner ];
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});
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[kTransfer] = common.mustCall(() => {
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return {
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data: { inner: this.inner },
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deserializeInfo: 'does-not:matter'
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};
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});
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}
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const { port1 } = new MessageChannel();
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const ot = new OuterTransferable();
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assert.throws(() => {
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port1.postMessage(ot, [ot]);
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}, { name: 'DataCloneError' });
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