blob: d03930f03fc1bfd71cf89bd4db3165af0823730a [file] [log] [blame]
function assert(a) {
if (!a)
throw new Error('Bad assertion');
}
// Check spread ordering without Proxy
(function () {
var calls = [];
var o = { get z() { calls.push('z') }, get a() { calls.push('a') } };
Object.defineProperty(o, 1, { get: () => { calls.push(1) }, enumerable: true });
Object.defineProperty(o, Symbol('foo'), { get: () => { calls.push('Symbol(foo)') }, enumerable: true });
var obj = {...o};
assert(calls[0] === 1);
assert(calls[1] === 'z');
assert(calls[2] === 'a');
assert(calls[3] === 'Symbol(foo)');
assert(Object.keys(obj).length === 3);
})();
// Check spread ordering with Proxy
(function () {
var calls = [];
var o = { z: 2, a: 3 };
var fooSymbol = Symbol('foo');
Object.defineProperty(o, 1, { value: 4, enumerable: true });
Object.defineProperty(o, fooSymbol, { value: 5, enumerable: true });
var p = new Proxy(o, {
get: function(target, property, receiver) {
calls.push(property);
return target[property];
}
});
var obj = {...p};
assert(calls[0] == 1);
assert(calls[1] == 'z');
assert(calls[2] == 'a');
assert(calls[3] === fooSymbol);
assert(Object.keys(obj).length === 3);
})();