[dart-announce] Breaking Change - More types for Future.timeout

['Florian Loitsch' via Dart Announcements]

I just landed a patch [0] that adds more types to the Future.timeout function. It's unlikely, but there is a chance that a program could now fail in checked mode.

We changed the signature from the timeout function from:

Future timeout(Duration timeLimit, {onTimeout()});

to

Future<T> timeout(Duration timeLimit, {onTimeout()});

This implies that the `onTimeout` function must return a T (or a Future<T>) now.

If you rely on the old behavior, you can work around the new types by introducing a `.then`:

typedFuture.timeout(...)

becomes

typedFuture.then((x) => x).timeout(...)

// florian

[0] https://github.com/dart-lang/sdk/commit/963f653b12c57c22b4c1252e70bc5468846eb23b

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[Jan Mostert]

In which version will this be released?

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