Disposables disposed of, even though they are passed to a wrapper and still in use about typescript HOT 3 CLOSED

createConsoleLogger declares logger with a using declaration.

The purpose of using is to automatically call [Symbol.dispose]() when the variable goes out of scope, in this case at the end of the function, before it returns control to the caller. That means createConsoleLogger will always return a ConsoleLogger object that has an already-disposed Logger object.

The using in createConsoleLogger should be changed to var/let/const. I'd also recommend ConsoleLogger itself also implement the Disposable interface. Objects that own disposable objects should generally themselves be disposable so they can clean up any disposables they own.

If you make the ConsoleLogger class disposable then a using statement would be useful is in your main function:

using logger = createConsoleLogger();

That way your ConsoleLogger object will be disposed of at the end of main, and in turn your ConsoleLogger will dispose of the Logger that it owns.

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These are the intended semantics of using. See https://github.com/tc39/proposal-explicit-resource-management

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Thank you all.

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