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(self::MyFuture::T x) → self::MyFuture<self::MyFuture::T>
    : super core::Object::•() {}
  method noSuchMethod(dynamic 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, {() → 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 method test() → void {
  self::MyFuture<core::int> f;
  asy::Future<core::int> t1 = f.then((dynamic x) → asy::Future<dynamic> /* originally async */ {
    final asy::_AsyncAwaitCompleter<dynamic> :async_completer = new asy::_AsyncAwaitCompleter::•<dynamic>();
    asy::FutureOr<dynamic> :return_value;
    dynamic :async_stack_trace;
    dynamic :async_op_then;
    dynamic :async_op_error;
    dynamic :await_jump_var = 0;
    dynamic :await_ctx_var;
    dynamic :saved_try_context_var0;
    dynamic :async_temporary_0;
    function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
      try {
        #L1:
        {
          final dynamic #t1 = x;
          if(#t1.==(null)) {
            [yield] let dynamic #t2 = asy::_awaitHelper(asy::Future::value<core::int>(3), :async_op_then, :async_op_error, :async_op) in null;
            :async_temporary_0 = :result;
          }
          else {
            :async_temporary_0 = #t1;
          }
          :return_value = :async_temporary_0;
          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};
  });
  asy::Future<core::int> t2 = f.then((dynamic x) → asy::Future<dynamic> /* originally async */ {
    final asy::_AsyncAwaitCompleter<dynamic> :async_completer = new asy::_AsyncAwaitCompleter::•<dynamic>();
    asy::FutureOr<dynamic> :return_value;
    dynamic :async_stack_trace;
    dynamic :async_op_then;
    dynamic :async_op_error;
    dynamic :await_jump_var = 0;
    dynamic :await_ctx_var;
    dynamic :saved_try_context_var0;
    function :async_op([dynamic :result, dynamic :exception, dynamic :stack_trace]) → dynamic yielding 
      try {
        #L2:
        {
          [yield] let dynamic #t3 = asy::_awaitHelper(x, :async_op_then, :async_op_error, :async_op) in null;
          :return_value = let final dynamic #t4 = :result in #t4.==(null) ? asy::Future::value<core::int>(3) : #t4;
          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};
  });
  asy::Future<core::int> t5 = f.then((dynamic x) → dynamic => let final dynamic #t5 = x in #t5.==(null) ? asy::Future::value<core::int>(3) : #t5);
  asy::Future<core::int> t6 = f.then((dynamic x) → dynamic {
    return let final dynamic #t6 = x in #t6.==(null) ? asy::Future::value<core::int>(3) : #t6;
  });
}
static method main() → dynamic {}