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/Dart 2

promiseToFuture<T> function

Future<T> promiseToFuture <T>(dynamic jsPromise)

Implementation

Future<T> promiseToFuture<T>(jsPromise) {
  var completer = new Completer<T>();

  var thenSuccessCode = (promiseValue) => completer.complete(promiseValue);
  var thenErrorCode = (promiseError) => completer.completeError(promiseError);

  JS("", "#.then(#, #)", jsPromise, convertDartClosureToJS(thenSuccessCode, 1),
      convertDartClosureToJS(thenErrorCode, 1));

  return completer.future;
}

© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/2.0.0/dart-html/promiseToFuture.html