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// Define a test object
var test = {x:1,y:2};
// Put the object into dictionary mode by deleting
// a property that was not the last one added.
delete test.x;
// Define a an accessor property with a setter that
// itself calls Object.defineProperty
Object.defineProperty(test, "foo", {
get: function() { return 1; },
set: function(v) {
Object.defineProperty(this, "foo", { value: v });
// Prints the correct object descriptor
assertEq(this.foo, 33);
},
configurable: true
});
// Add another property, so generateOwnShape does not replace the foo property.
test.other = 0;
// This line prints 1, as expected
assertEq(test.foo, 1);
// Now set the property. This calls the setter method above.
// And the setter method prints the expected value and property descriptor.
test.foo = 33;
// Finally read the newly set value.
assertEq(test.foo, 33);
// Check that enumeration order is correct.
var arr = [];
for (var x in test) arr.push(x);
assertEq("" + arr, "y,other");
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