| // Forward to the target if the trap is not defined |
| var proto = Object.create(null, { |
| 'foo': { |
| configurable: true |
| } |
| }); |
| var descs = { |
| 'bar': { |
| configurable: true |
| } |
| }; |
| descs[Symbol.for("quux")] = {configurable: true}; |
| var target = Object.create(proto, descs); |
| |
| for (let p of [new Proxy(target, {}), Proxy.revocable(target, {}).proxy]) { |
| assertEq(({}).hasOwnProperty.call(p, 'foo'), false); |
| assertEq(({}).hasOwnProperty.call(p, 'bar'), true); |
| assertEq(({}).hasOwnProperty.call(p, 'quux'), false); |
| assertEq(({}).hasOwnProperty.call(p, Symbol('quux')), false); |
| assertEq(({}).hasOwnProperty.call(p, 'Symbol(quux)'), false); |
| assertEq(({}).hasOwnProperty.call(p, Symbol.for('quux')), true); |
| } |
| |
| // Make sure only the getOwnPropertyDescriptor trap is called, and not the has |
| // trap. |
| var called; |
| var handler = { getOwnPropertyDescriptor: function () { called = true; }, |
| has: function () { assertEq(false, true, "has trap must not be called"); } |
| } |
| |
| for (let p of [new Proxy({}, handler), Proxy.revocable({}, handler).proxy]) { |
| called = false; |
| assertEq(({}).hasOwnProperty.call(p, 'foo'), false); |
| assertEq(called, true); |
| } |