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34 lines
1.2 KiB
JavaScript
34 lines
1.2 KiB
JavaScript
const Cu = Components.utils;
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function checkThrows(f, rgxp) { try { f(); do_check_false(); } catch (e) { do_check_true(rgxp.test(e)); } }
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var o = { foo: 42, bar : { tick: 'tock' } };
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function checkClone(clone, frozen) {
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var waived = Cu.waiveXrays(clone);
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function touchFoo() { "use strict"; waived.foo = 12; do_check_eq(waived.foo, 12); }
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function touchBar() { "use strict"; waived.bar.tick = 'tack'; do_check_eq(waived.bar.tick, 'tack'); }
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function addProp() { "use strict"; waived.newProp = 100; do_check_eq(waived.newProp, 100); }
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if (!frozen) {
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touchFoo();
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touchBar();
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addProp();
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} else {
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checkThrows(touchFoo, /read-only/);
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checkThrows(touchBar, /read-only/);
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checkThrows(addProp, /extensible/);
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}
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var desc = Object.getOwnPropertyDescriptor(waived, 'foo');
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do_check_eq(desc.writable, !frozen);
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do_check_eq(desc.configurable, !frozen);
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desc = Object.getOwnPropertyDescriptor(waived.bar, 'tick');
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do_check_eq(desc.writable, !frozen);
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do_check_eq(desc.configurable, !frozen);
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}
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function run_test() {
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var sb = new Cu.Sandbox(null);
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checkClone(Cu.waiveXrays(Cu.cloneInto(o, sb)), false);
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checkClone(Cu.cloneInto(o, sb, { deepFreeze: true }), true);
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}
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