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load(libdir + "asserts.js");
/*
* Throw a TypeError if the current descriptor is a data descriptor and the
* descriptor returned by the trap is not, or vice versa, and the current
* descriptor is non-configurable
*/
var target = {};
Object.defineProperty(target, 'foo', {
value: 'bar',
configurable: false
});
var caught = false;
assertThrowsInstanceOf(function () {
Object.getOwnPropertyDescriptor(new Proxy(target, {
getOwnPropertyDescriptor: function (target, name) {
return {
get: function () {
return 'bar';
},
configurable: false
};
}
}), 'foo');
}, TypeError);
var target = {};
Object.defineProperty(target, 'foo', {
value: function () {
return 'bar';
},
configurable: false
});
assertThrowsInstanceOf(function () {
Object.getOwnPropertyDescriptor(new Proxy(target, {
getOwnPropertyDescriptor: function (target, name) {
return {
value: 'bar',
configurable: false
};
}
}), 'foo');
}, TypeError);