js/src/jit-test/tests/proxy/testDirectProxyKeys3.js


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load(libdir + "asserts.js");

// Throw a TypeError if the trap does not return an object

var handler = { ownKeys: () => undefined };
for (let p of [new Proxy({}, handler), Proxy.revocable({}, handler).proxy])
    assertThrowsInstanceOf(() => Object.keys(p), TypeError);