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load(libdir + "asserts.js");
/*
* Throw a TypeError if both the current descriptor and the descriptor returned
* by the trap are accessor descriptors, the current descriptor is
* non-configurable, and the descriptor returned by the trap has a different
* getter.
*/
var target = {};
Object.defineProperty(target, 'foo', {
get: function () {
return 'bar';
},
configurable: false
});
var caught = false;
assertThrowsInstanceOf(function () {
Object.getOwnPropertyDescriptor(new Proxy(target, {
getOwnPropertyDescriptor: function (target, name) {
return {
get: function () {
return 'baz';
},
configurable: false
};
}
}), 'foo');
}, TypeError);