react/compiler/crates/react_hermes_parser/tests/fixtures/error.invalid-function-expression-mutates-immutable-value.js

function Component(props) {
  const [x, setX] = useState({ value: "" });
  const onChange = (e) => {
    // INVALID! should use copy-on-write and pass the new value
    x.value = e.target.value;
    setX(x);
  };
  return <input value={x.value} onChange={onChange} />;
}