ccw.js (1281B)
1 // |reftest| shell-option(--enable-shadow-realms) skip-if(!xulRuntime.shell) 2 3 var g = newGlobal({ newCompartment: true }); 4 5 var sr = g.evaluate(`new ShadowRealm()`); 6 7 8 // sr should be a CCW to a ShadowRealm. 9 ShadowRealm.prototype.evaluate.call(sr, "var x = 10"); 10 assertEq(sr.evaluate("x"), 10); 11 12 // wrappedf should *not* be a CCW, because we're using this realm's ShadowRealm.prototype.evaluate, 13 // and so the active realm when invoking will be this current realm. 14 // 15 // However, the target function (wrappedf's f) comes from another compartment, and will have to be a CCW. 16 var wrappedf = ShadowRealm.prototype.evaluate.call(sr, "function f() { return 10; }; f"); 17 assertEq(wrappedf(), 10); 18 19 var evaluate_from_other_realm = g.evaluate('ShadowRealm.prototype.evaluate'); 20 21 // wrappedb should be a CCW, since the callee of the .call comes from the other 22 // compartment. 23 var wrappedb = evaluate_from_other_realm.call(sr, "function b() { return 12; }; b"); 24 assertEq(wrappedb(), 12); 25 26 nukeAllCCWs() 27 // This throws, but the dead object message is lost and replaced with the wrapped function 28 // object message. 29 assertThrowsInstanceOf(() => wrappedf(), TypeError); 30 assertThrowsInstanceOf(() => wrappedb(), TypeError); 31 32 if (typeof reportCompare === 'function') 33 reportCompare(true, true);