library #lib;
import self as self;
import "dart:core" as core;

abstract class StreamSubscription extends core::Object {
  synthetic constructor •() → void
    : super core::Object::•()
    ;
}
class _BufferingStreamSubscription extends self::StreamSubscription {
  synthetic constructor •() → void
    : super self::StreamSubscription::•()
    ;
}
class _BroadcastSubscription extends self::StreamSubscription {
  synthetic constructor •() → void
    : super self::StreamSubscription::•()
    ;
}
abstract class Stream extends core::Object {
  synthetic constructor •() → void
    : super core::Object::•()
    ;
  abstract method foobar((dynamic) → void onData, {core::Function onError = null}) → self::StreamSubscription;
}
abstract class _StreamImpl extends self::Stream {
  synthetic constructor •() → void
    : super self::Stream::•()
    ;
  method foobar([@vm.inferred-type.metadata=dart.core::Null?] (dynamic) → void onData, {[@vm.inferred-type.metadata=dart.core::Null?] core::Function onError = null}) → self::StreamSubscription {
    return [@vm.inferred-type.metadata=!] this.{self::_StreamImpl::_createSubscription}();
  }
  method _createSubscription() → self::StreamSubscription {
    return new self::_BufferingStreamSubscription::•();
  }
}
class _ControllerStream extends self::_StreamImpl {
  synthetic constructor •() → void
    : super self::_StreamImpl::•()
    ;
  method _createSubscription() → self::StreamSubscription {
    return new self::_BroadcastSubscription::•();
  }
}
class _GeneratedStreamImpl extends self::_StreamImpl {
  synthetic constructor •() → void
    : super self::_StreamImpl::•()
    ;
}
abstract class StreamView extends self::Stream {
[@vm.inferred-type.metadata=!]  final field self::Stream _stream;
  constructor •([@vm.inferred-type.metadata=!] self::Stream stream) → void
    : self::StreamView::_stream = stream, super self::Stream::•()
    ;
  method foobar([@vm.inferred-type.metadata=dart.core::Null?] (dynamic) → void onData, {[@vm.inferred-type.metadata=dart.core::Null?] core::Function onError = null}) → self::StreamSubscription {
    return [@vm.direct-call.metadata=#lib::StreamView::_stream] [@vm.inferred-type.metadata=!] this.{self::StreamView::_stream}.{self::Stream::foobar}(onData, onError: onError);
  }
}
class ByteStream extends self::StreamView {
  constructor •([@vm.inferred-type.metadata=!] self::Stream stream) → void
    : super self::StreamView::•(stream)
    ;
  method super_foobar1([@vm.inferred-type.metadata=dart.core::Null?] (dynamic) → void onData) → dynamic {
    super.{self::StreamView::foobar}(onData);
  }
  method super_foobar2([@vm.inferred-type.metadata=dart.core::Null?] (dynamic) → void onData) → dynamic {
    super.{self::StreamView::foobar}(onData);
  }
  method super_foobar3({[@vm.inferred-type.metadata=dart.core::Null?] (dynamic) → void onData = null, [@vm.inferred-type.metadata=dart.core::Null?] core::Function onError = null}) → dynamic {
    super.{self::StreamView::foobar}(onData, onError: onError);
  }
  get super_stream() → self::Stream
    return [@vm.inferred-type.metadata=!] super.{self::StreamView::_stream};
}
class _HandleErrorStream extends self::Stream {
  synthetic constructor •() → void
    : super self::Stream::•()
    ;
}
static method round0() → void {
  new self::ByteStream::•(new self::ByteStream::•(new self::_GeneratedStreamImpl::•()));
}
static method round1({[@vm.inferred-type.metadata=dart.core::Null?] (dynamic) → void onData = null}) → void {
  self::ByteStream x = new self::ByteStream::•(new self::ByteStream::•(new self::_GeneratedStreamImpl::•()));
  [@vm.direct-call.metadata=#lib::ByteStream::super_foobar1] x.{self::ByteStream::super_foobar1}(onData);
}
static method round2({[@vm.inferred-type.metadata=dart.core::Null?] (dynamic) → void onData = null, [@vm.inferred-type.metadata=dart.core::Null?] core::Function onError = null}) → void {
  new self::_ControllerStream::•();
  self::Stream x = new self::_GeneratedStreamImpl::•();
  x = new self::ByteStream::•(x);
  x.{self::Stream::foobar}(onData, onError: onError);
}
static method round3({[@vm.inferred-type.metadata=dart.core::Null?] (dynamic) → void onData = null, [@vm.inferred-type.metadata=dart.core::Null?] core::Function onError = null}) → void {
  self::Stream x = new self::_GeneratedStreamImpl::•();
  x = new self::ByteStream::•(x);
  x = new self::_ControllerStream::•();
  x.{self::Stream::foobar}(onData, onError: onError);
}
static method round4({[@vm.inferred-type.metadata=dart.core::Null?] (dynamic) → void onData = null}) → void {
  self::ByteStream x = new self::ByteStream::•(new self::_ControllerStream::•());
  self::Stream y = [@vm.direct-call.metadata=#lib::ByteStream::super_stream] [@vm.inferred-type.metadata=!] x.{self::ByteStream::super_stream};
  self::Stream z = [@vm.direct-call.metadata=#lib::StreamView::_stream] [@vm.inferred-type.metadata=!] x.{self::StreamView::_stream};
  if([@vm.direct-call.metadata=dart.core::Object::==] [@vm.inferred-type.metadata=dart.core::bool] y.{core::Object::==}(z)) {
    [@vm.direct-call.metadata=#lib::ByteStream::super_foobar2] x.{self::ByteStream::super_foobar2}(onData);
  }
}
static method round5() → void {
  self::ByteStream x = new self::ByteStream::•(new self::_GeneratedStreamImpl::•());
  new self::_HandleErrorStream::•();
  [@vm.direct-call.metadata=#lib::ByteStream::super_foobar3] x.{self::ByteStream::super_foobar3}();
}
static method main(core::List<core::String> args) → dynamic {
  new self::_GeneratedStreamImpl::•();
  self::round0();
  self::round1();
  self::round2();
  self::round3();
  self::round4();
  self::round5();
}