Hello!
Consider the following:
async function foo() {
await using x = { [Symbol.asyncDispose]: 0, [Symbol.dispose]: () => {}
};
}
await foo();
This throws "TypeError: Symbol(Symbol.asyncDispose) is not a function".
Is that a bug? According to our reading of the proposal
<https://github.com/tc39/proposal-explicit-resource-management>, the
synchronous fallback should be used if [Symbol.asyncDispose] exists but
isn't a function. From the proposal:
let $$dispose = x[Symbol.asyncDispose];
if (typeof $$dispose !== "function") {
$$dispose = x[Symbol.dispose];
}
Thanks!
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