library test /*isNonNullableByDefault*/;
//
// Problems in library:
//
// 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>?'.
//         new /*@typeArgs=int*/ Future.value('hi'));
//                                            ^
//
import self as self;
import "dart:core" as core;
import "dart:async" as asy;

import "dart:async";

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 = #C1]) → 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%) → FutureOr<self::MyFuture::then::S%>f, {core::Function? onError = #C1}) → self::MyFuture<self::MyFuture::then::S%>
    return throw "";
  no-such-method-forwarder method /* from org-dartlang-sdk:///sdk/lib/async/future.dart */ catchError(core::Function onError, {(core::Object) →? core::bool test = #C1}) → asy::Future<self::MyFuture::T%>
    return this.{self::MyFuture::noSuchMethod}(new core::_InvocationMirror::_withType(#C2, 0, #C3, core::List::unmodifiable<dynamic>(core::_GrowableList::_literal1<dynamic>(onError)), core::Map::unmodifiable<core::Symbol*, dynamic>(<core::Symbol*, dynamic>{#C4: test}))){(core::Invocation) → dynamic} as{TypeError,ForDynamic,ForNonNullableByDefault} asy::Future<self::MyFuture::T%>;
  no-such-method-forwarder method /* from org-dartlang-sdk:///sdk/lib/async/future.dart */ whenComplete(() → FutureOr<void>action) → asy::Future<self::MyFuture::T%>
    return this.{self::MyFuture::noSuchMethod}(new core::_InvocationMirror::_withType(#C5, 0, #C3, core::List::unmodifiable<dynamic>(core::_GrowableList::_literal1<dynamic>(action)), core::Map::unmodifiable<core::Symbol*, dynamic>(#C6))){(core::Invocation) → dynamic} as{TypeError,ForDynamic,ForNonNullableByDefault} asy::Future<self::MyFuture::T%>;
  no-such-method-forwarder method /* from org-dartlang-sdk:///sdk/lib/async/future.dart */ timeout(core::Duration timeLimit, {covariant-by-class () →? FutureOr<self::MyFuture::T%>onTimeout = #C1}) → asy::Future<self::MyFuture::T%>
    return this.{self::MyFuture::noSuchMethod}(new core::_InvocationMirror::_withType(#C7, 0, #C3, core::List::unmodifiable<dynamic>(core::_GrowableList::_literal1<dynamic>(timeLimit)), core::Map::unmodifiable<core::Symbol*, dynamic>(<core::Symbol*, dynamic>{#C8: onTimeout}))){(core::Invocation) → dynamic} as{TypeError,ForDynamic,ForNonNullableByDefault} 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(#C9, 0, #C3, #C10, core::Map::unmodifiable<core::Symbol*, dynamic>(#C6))){(core::Invocation) → dynamic} as{TypeError,ForDynamic,ForNonNullableByDefault} asy::Stream<self::MyFuture::T%>;
}
static field self::MyFuture<dynamic> f = throw "";
static field asy::Future<core::int> t1 = self::f.{self::MyFuture::then}<core::int>((dynamic _) → asy::Future<core::int> => asy::Future::value<core::int>(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>?'.
        new /*@typeArgs=int*/ Future.value('hi'));
                                           ^" in "hi" as{TypeError,ForNonNullableByDefault} FutureOr<core::int>?)){((dynamic) → FutureOr<core::int>, {onError: core::Function?}) → self::MyFuture<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::_GrowableList::_literal1<core::int>(3)){((dynamic) → FutureOr<core::List<core::int>>, {onError: core::Function?}) → self::MyFuture<core::List<core::int>>};
static method g2() → asy::Future<core::List<core::int>> async /* futureValueType= core::List<core::int> */ {
  return core::_GrowableList::_literal1<core::int>(3);
}
static method g3() → asy::Future<core::List<core::int>> async /* futureValueType= core::List<core::int> */ {
  return asy::Future::value<core::List<core::int>>(core::_GrowableList::_literal1<core::int>(3));
}
static method main() → dynamic {}

constants  {
  #C1 = null
  #C2 = #catchError
  #C3 = <core::Type*>[]
  #C4 = #test
  #C5 = #whenComplete
  #C6 = <core::Symbol*, dynamic>{)
  #C7 = #timeout
  #C8 = #onTimeout
  #C9 = #asStream
  #C10 = <dynamic>[]
}