56 lines
1.1 KiB
JavaScript
56 lines
1.1 KiB
JavaScript
'use strict';
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add_task(async function () {
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let webnav = Services.appShell.createWindowlessBrowser(false);
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let docShell = webnav.docShell;
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docShell.createAboutBlankDocumentViewer(null, null);
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let window = webnav.document.defaultView;
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let iframe = window.eval(`
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iframe = document.createElement("iframe");
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iframe.id = "iframe"
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document.body.appendChild(iframe)
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iframe`);
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let unwrapped = Cu.waiveXrays(iframe);
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class Base {
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constructor(o) {
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return o;
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}
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};
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class A extends Base {
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#x = 12;
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static gx(o) {
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return o.#x;
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}
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static sx(o, v) {
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o.#x = v;
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}
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};
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new A(iframe);
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Assert.equal(A.gx(iframe), 12);
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A.sx(iframe, 'wrapped');
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// Shouldn't tunnel past xray.
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Assert.throws(() => A.gx(unwrapped), TypeError);
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Assert.throws(() => A.sx(unwrapped, 'unwrapped'), TypeError);
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new A(unwrapped);
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Assert.equal(A.gx(unwrapped), 12);
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Assert.equal(A.gx(iframe), 'wrapped');
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A.sx(iframe, 'modified');
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Assert.equal(A.gx(unwrapped), 12);
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A.sx(unwrapped, 16);
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Assert.equal(A.gx(iframe), 'modified');
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});
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