cross-realm-iterator-suppression.js

Enable keyboard shortcuts

function foo(o) {

  // Ensure a NativeIterator exists for o.

  for (var s in o) {}

  // Loop over the keys, deleting y.

  // If y is correctly suppressed, then result should

  // be the name of the first property.

  var result = "";

  for (var s in o) {

    delete o.y;

    result += s;

  assertEq(o[result], 42);

with ({}) {}

for (var i = 0; i < 100; i++) {

  var o = {};

  o["x" + i] = 42;

  o.y = 1;

  foo(o);

// Cross-realm, same-compartment

var g = newGlobal({newCompartment: false});

g.eval("var o = {x: 42, y: 1}");

foo(g.o);

// Cross-realm, cross-compartment

var g2 = newGlobal({newCompartment: true});

g2.eval("var o = {x: 42, y: 1}");

foo(g2.o);