The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/jit-test/tests/saved-stacks/getters-on-invalid-objects.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,21 @@
     1.4 +// Test that you can't call the SavedFrame constructor and can only use
     1.5 +// SavedFrame's getters on SavedFrame instances.
     1.6 +
     1.7 +load(libdir + "asserts.js");
     1.8 +
     1.9 +let proto = Object.getPrototypeOf(saveStack());
    1.10 +
    1.11 +// Can't create new SavedFrame instances by hand.
    1.12 +assertThrowsInstanceOf(() => {
    1.13 +  new proto.constructor();
    1.14 +}, TypeError);
    1.15 +
    1.16 +for (let p of ["source", "line", "column", "functionDisplayName", "parent"]) {
    1.17 +  // The getters shouldn't work on the prototype.
    1.18 +  assertThrowsInstanceOf(() => proto[p], TypeError);
    1.19 +
    1.20 +  // Nor should they work on random objects.
    1.21 +  let o = {};
    1.22 +  Object.defineProperty(o, p, Object.getOwnPropertyDescriptor(proto, p));
    1.23 +  assertThrowsInstanceOf(() => o[p], TypeError);
    1.24 +}