tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

get-function-realm.js (1465B)

      1 // SKIP test262 export
      2 // Pending review.
      3 
      4 var g1 = newGlobal();
      5 var g1Fun = g1.eval("function Fun() {}; Fun");
      6 
      7 // Bound function => cross-realm function.
      8 var bound1 = Function.prototype.bind.call(g1Fun);
      9 assertEq(Object.getPrototypeOf(new bound1()), g1.Fun.prototype);
     10 
     11 // Proxy => cross-realm function.
     12 var proxy1 = new Proxy(g1Fun, {
     13    get: function() {} // Ensure "prototype" is |undefined|.
     14 });
     15 assertEq(Object.getPrototypeOf(new proxy1()), g1.Object.prototype);
     16 
     17 // Proxy => bound function => cross-realm function.
     18 var proxy2 = new Proxy(bound1, {
     19    get: function() {}
     20 });
     21 assertEq(Object.getPrototypeOf(new proxy2()), g1.Object.prototype);
     22 
     23 // Revoked proxy => cross-realm function.
     24 var r1 = Proxy.revocable(g1Fun, {
     25    get: function(t, name) {
     26        assertEq(name, "prototype");
     27        r1.revoke();
     28    }
     29 });
     30 assertThrowsInstanceOf(() => new r1.proxy(), g1.TypeError);
     31 
     32 // Bound function => proxy => bound function => cross-realm function.
     33 var bound2 = Function.prototype.bind.call(proxy2);
     34 assertEq(Object.getPrototypeOf(new bound2()), g1.Object.prototype);
     35 
     36 // Proxy => cross-realm revoked proxy => cross-realm function.
     37 var r2 = Proxy.revocable(g1Fun, {
     38    get: function(t, name) {
     39        assertEq(name, "prototype");
     40        r2.revoke();
     41    }
     42 });
     43 var g2 = newGlobal();
     44 var proxy3 = new g2.Proxy(r2.proxy, {});
     45 assertThrowsInstanceOf(() => new proxy3(), g1.TypeError);
     46 
     47 if (typeof reportCompare === "function")
     48    reportCompare(true, true);