library test;
import self as self;
import "dart:core" as core;
import "dart:async" as asy;

class MyFuture<T extends core::Object = dynamic> extends core::Object implements asy::Future<self::MyFuture::T> {
  constructor •() → self::MyFuture<self::MyFuture::T>
    : super core::Object::•() {}
  constructor value([dynamic x = null]) → self::MyFuture<self::MyFuture::T>
    : super core::Object::•() {}
  method noSuchMethod(core::Invocation invocation) → dynamic
    return null;
  method then<S extends core::Object = dynamic>((self::MyFuture::T) → asy::FutureOr<self::MyFuture::then::S> f, {core::Function onError = null}) → self::MyFuture<self::MyFuture::then::S>
    return null;
  no-such-method-forwarder method /* from org-dartlang-sdk:///sdk/lib/async/future.dart */ catchError(core::Function onError, {(core::Object) → core::bool test = null}) → asy::Future<self::MyFuture::T>
    return this.{self::MyFuture::noSuchMethod}(new core::_InvocationMirror::_withType(#catchError, 0, const <core::Type>[], core::List::unmodifiable<dynamic>(<dynamic>[onError]), core::Map::unmodifiable<core::Symbol, dynamic>(<core::Symbol, dynamic>{#test: test}))) as{TypeError} asy::Future<self::MyFuture::T>;
  no-such-method-forwarder method /* from org-dartlang-sdk:///sdk/lib/async/future.dart */ whenComplete(() → asy::FutureOr<dynamic> action) → asy::Future<self::MyFuture::T>
    return this.{self::MyFuture::noSuchMethod}(new core::_InvocationMirror::_withType(#whenComplete, 0, const <core::Type>[], core::List::unmodifiable<dynamic>(<dynamic>[action]), core::Map::unmodifiable<core::Symbol, dynamic>(const <core::Symbol, dynamic>{}))) as{TypeError} asy::Future<self::MyFuture::T>;
  no-such-method-forwarder method /* from org-dartlang-sdk:///sdk/lib/async/future.dart */ timeout(core::Duration timeLimit, {generic-covariant-impl () → asy::FutureOr<self::MyFuture::T> onTimeout = null}) → asy::Future<self::MyFuture::T>
    return this.{self::MyFuture::noSuchMethod}(new core::_InvocationMirror::_withType(#timeout, 0, const <core::Type>[], core::List::unmodifiable<dynamic>(<dynamic>[timeLimit]), core::Map::unmodifiable<core::Symbol, dynamic>(<core::Symbol, dynamic>{#onTimeout: onTimeout}))) as{TypeError} asy::Future<self::MyFuture::T>;
  no-such-method-forwarder method /* from org-dartlang-sdk:///sdk/lib/async/future.dart */ asStream() → asy::Stream<self::MyFuture::T>
    return this.{self::MyFuture::noSuchMethod}(new core::_InvocationMirror::_withType(#asStream, 0, const <core::Type>[], const <dynamic>[], core::Map::unmodifiable<core::Symbol, dynamic>(const <core::Symbol, dynamic>{}))) as{TypeError} asy::Stream<self::MyFuture::T>;
}
static field self::MyFuture<dynamic> f;
static field asy::Future<core::int> t1 = self::f.{self::MyFuture::then}<core::int>((dynamic _) → asy::Future<core::int> => asy::Future::value<core::int>(let final<BottomType> #t1 = invalid-expression "pkg/front_end/testcases/inference/future_union_downwards.dart:21:44: Error: The argument type 'String' can't be assigned to the parameter type 'FutureOr<int>'.
 - 'FutureOr' is from 'dart:async'.
Try changing the type of the parameter, or casting the argument to 'FutureOr<int>'.
        new /*@typeArgs=int*/ Future.value('hi'));
                                           ^" in "hi" as{TypeError} asy::FutureOr<core::int>));
static field asy::Future<core::List<core::int>> t2 = self::f.{self::MyFuture::then}<core::List<core::int>>((dynamic _) → core::List<core::int> => <core::int>[3]);
static method g2() → asy::Future<core::List<core::int>> /* originally async */ {
  final asy::_AsyncAwaitCompleter<core::List<core::int>> :async_completer = new asy::_AsyncAwaitCompleter::•<core::List<core::int>>();
  asy::FutureOr<core::List<core::int>> :return_value;
  dynamic :async_stack_trace;
  dynamic :async_op_then;
  dynamic :async_op_error;
  dynamic :await_jump_var = 0;
  dynamic :await_ctx_var;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L1:
      {
        :return_value = <core::int>[3];
        break #L1;
      }
      asy::_completeOnAsyncReturn(:async_completer, :return_value);
      return;
    }
    on dynamic catch(dynamic :exception, dynamic :stack_trace) {
      :async_completer.{asy::Completer::completeError}(:exception, :stack_trace);
    }
  :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  :async_completer.start(:async_op);
  return :async_completer.{asy::Completer::future};
}
static method g3() → asy::Future<core::List<core::int>> /* originally async */ {
  final asy::_AsyncAwaitCompleter<core::List<core::int>> :async_completer = new asy::_AsyncAwaitCompleter::•<core::List<core::int>>();
  asy::FutureOr<core::List<core::int>> :return_value;
  dynamic :async_stack_trace;
  dynamic :async_op_then;
  dynamic :async_op_error;
  dynamic :await_jump_var = 0;
  dynamic :await_ctx_var;
  function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
    try {
      #L2:
      {
        :return_value = asy::Future::value<core::List<core::int>>(<core::int>[3]);
        break #L2;
      }
      asy::_completeOnAsyncReturn(:async_completer, :return_value);
      return;
    }
    on dynamic catch(dynamic :exception, dynamic :stack_trace) {
      :async_completer.{asy::Completer::completeError}(:exception, :stack_trace);
    }
  :async_stack_trace = asy::_asyncStackTraceHelper(:async_op);
  :async_op_then = asy::_asyncThenWrapperHelper(:async_op);
  :async_op_error = asy::_asyncErrorWrapperHelper(:async_op);
  :async_completer.start(:async_op);
  return :async_completer.{asy::Completer::future};
}
static method main() → dynamic {}