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7d113fddff
Ensure that "a instanceof b" has Xray semantics, i.e. that when b is a XrayWrapper, that the wrapped object's getters, `Symbol.hasInstance` hook and proxy traps are not triggered. The toolkit/components/mozintl/test/test_mozintlhelper.js test was updated to explicitly waive Xrays, instead of relying on the previous behavior where Xrays were automatically waived. Depends on D11591 Depends on D11591 Differential Revision: https://phabricator.services.mozilla.com/D11592 --HG-- extra : moz-landing-system : lando
54 lines
1.7 KiB
JavaScript
54 lines
1.7 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/ */
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function run_test() {
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const miHelper = Cc["@mozilla.org/mozintlhelper;1"]
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.getService(Ci.mozIMozIntlHelper);
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test_this_global(miHelper);
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test_cross_global(miHelper);
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test_methods_presence(miHelper);
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ok(true);
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}
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function test_this_global(miHelper) {
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let x = {};
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miHelper.addGetCalendarInfo(x);
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equal(x.getCalendarInfo instanceof Function, true);
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equal(x.getCalendarInfo() instanceof Object, true);
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}
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function test_cross_global(miHelper) {
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var global = new Cu.Sandbox("https://example.com/");
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var x = global.Object();
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miHelper.addGetCalendarInfo(x);
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var waivedX = Cu.waiveXrays(x);
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equal(waivedX.getCalendarInfo instanceof Function, false);
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equal(waivedX.getCalendarInfo instanceof Cu.waiveXrays(global.Function), true);
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equal(waivedX.getCalendarInfo() instanceof Object, false);
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equal(waivedX.getCalendarInfo() instanceof Cu.waiveXrays(global.Object), true);
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}
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function test_methods_presence(miHelper) {
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equal(miHelper.addGetCalendarInfo instanceof Function, true);
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equal(miHelper.addGetDisplayNames instanceof Function, true);
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equal(miHelper.addGetLocaleInfo instanceof Function, true);
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equal(miHelper.addDateTimeFormatConstructor instanceof Function, true);
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let x = {};
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miHelper.addGetCalendarInfo(x);
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equal(x.getCalendarInfo instanceof Function, true);
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miHelper.addGetDisplayNames(x);
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equal(x.getDisplayNames instanceof Function, true);
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miHelper.addGetLocaleInfo(x);
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equal(x.getLocaleInfo instanceof Function, true);
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miHelper.addDateTimeFormatConstructor(x);
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equal(x.DateTimeFormat instanceof Function, true);
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}
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