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

abstract class StreamSubscription extends core::Object {
  synthetic constructor •() → self::StreamSubscription*
    : super core::Object::•()
    ;
}
class _BufferingStreamSubscription extends self::StreamSubscription {
  synthetic constructor •() → self::_BufferingStreamSubscription*
    : super self::StreamSubscription::•()
    ;
}
class _BroadcastSubscription extends self::StreamSubscription {
  synthetic constructor •() → self::_BroadcastSubscription*
    : super self::StreamSubscription::•()
    ;
}
abstract class Stream extends core::Object {
  synthetic constructor •() → self::Stream*
    : super core::Object::•()
    ;
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasThisUses:false,hasNonThisUses:false,hasTearOffUses:false,methodOrSetterSelectorId:1,getterSelectorId:2]  abstract method foobar((dynamic) →* void onData, {core::Function* onError = #C1}) → self::StreamSubscription*;
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasThisUses:false,hasNonThisUses:false,hasTearOffUses:false,methodOrSetterSelectorId:3]  abstract member-signature operator ==(dynamic other) → core::bool*;
}
abstract class _StreamImpl extends self::Stream {
  synthetic constructor •() → self::_StreamImpl*
    : super self::Stream::•()
    ;
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasThisUses:false,hasTearOffUses:false,methodOrSetterSelectorId:1,getterSelectorId:2]  method foobar([@vm.inferred-type.metadata=dart.core::Null? (value: null)] (dynamic) →* void onData, {[@vm.inferred-type.metadata=dart.core::Null? (value: null)] core::Function* onError = #C1}) → self::StreamSubscription* {
    return [@vm.inferred-type.metadata=! (skip check)] this.{self::_StreamImpl::_createSubscription}();
  }
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasNonThisUses:false,hasTearOffUses:false,methodOrSetterSelectorId:4,getterSelectorId:5]  method _createSubscription() → self::StreamSubscription* {
    return new self::_BufferingStreamSubscription::•();
  }
}
class _ControllerStream extends self::_StreamImpl {
  synthetic constructor •() → self::_ControllerStream*
    : super self::_StreamImpl::•()
    ;
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasNonThisUses:false,hasTearOffUses:false,methodOrSetterSelectorId:4,getterSelectorId:5]  method _createSubscription() → self::StreamSubscription* {
    return new self::_BroadcastSubscription::•();
  }
}
class _GeneratedStreamImpl extends self::_StreamImpl {
  synthetic constructor •() → self::_GeneratedStreamImpl*
    : super self::_StreamImpl::•()
    ;
}
abstract class StreamView extends self::Stream {
[@vm.inferred-type.metadata=!] [@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasThisUses:false,hasNonThisUses:false,hasTearOffUses:false,methodOrSetterSelectorId:6,getterSelectorId:7]  final field self::Stream* _stream;
  constructor •([@vm.inferred-type.metadata=!] self::Stream* stream) → self::StreamView*
    : self::StreamView::_stream = stream, super self::Stream::•()
    ;
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasTearOffUses:false,methodOrSetterSelectorId:1,getterSelectorId:2]  method foobar([@vm.inferred-type.metadata=dart.core::Null? (value: null)] (dynamic) →* void onData, {[@vm.inferred-type.metadata=dart.core::Null? (value: null)] core::Function* onError = #C1}) → self::StreamSubscription* {
    return [@vm.direct-call.metadata=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) → self::ByteStream*
    : super self::StreamView::•(stream)
    ;
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasThisUses:false,hasTearOffUses:false,methodOrSetterSelectorId:8,getterSelectorId:9]  method super_foobar1([@vm.inferred-type.metadata=dart.core::Null? (value: null)] (dynamic) →* void onData) → dynamic {
    super.{self::StreamView::foobar}(onData);
  }
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasThisUses:false,hasTearOffUses:false,methodOrSetterSelectorId:10,getterSelectorId:11]  method super_foobar2([@vm.inferred-type.metadata=dart.core::Null? (value: null)] (dynamic) →* void onData) → dynamic {
    super.{self::StreamView::foobar}(onData);
  }
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasThisUses:false,hasTearOffUses:false,methodOrSetterSelectorId:12,getterSelectorId:13]  method super_foobar3({[@vm.inferred-type.metadata=dart.core::Null? (value: null)] (dynamic) →* void onData = #C1, [@vm.inferred-type.metadata=dart.core::Null? (value: null)] core::Function* onError = #C1}) → dynamic {
    super.{self::StreamView::foobar}(onData, onError: onError);
  }
[@vm.procedure-attributes.metadata=methodOrSetterCalledDynamically:false,getterCalledDynamically:false,hasThisUses:false,hasNonThisUses:false,hasTearOffUses:false,getterSelectorId:14]  get super_stream() → self::Stream*
    return [@vm.inferred-type.metadata=!] super.{self::StreamView::_stream};
}
class _HandleErrorStream extends self::Stream {
  synthetic constructor •() → self::_HandleErrorStream*
    : 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? (value: null)] (dynamic) →* void onData = #C1}) → void {
  self::ByteStream* x = new self::ByteStream::•(new self::ByteStream::•(new self::_GeneratedStreamImpl::•()));
  [@vm.direct-call.metadata=ByteStream::super_foobar1] [@vm.inferred-type.metadata=!? (skip check)] x.{self::ByteStream::super_foobar1}(onData);
}
static method round2({[@vm.inferred-type.metadata=dart.core::Null? (value: null)] (dynamic) →* void onData = #C1, [@vm.inferred-type.metadata=dart.core::Null? (value: null)] core::Function* onError = #C1}) → void {
  new self::_ControllerStream::•();
  self::Stream* x = new self::_GeneratedStreamImpl::•();
  x = new self::ByteStream::•(x);
  [@vm.direct-call.metadata=StreamView::foobar] [@vm.inferred-type.metadata=!? (skip check)] x.{self::Stream::foobar}(onData, onError: onError);
}
static method round3({[@vm.inferred-type.metadata=dart.core::Null? (value: null)] (dynamic) →* void onData = #C1, [@vm.inferred-type.metadata=dart.core::Null? (value: null)] core::Function* onError = #C1}) → void {
  self::Stream* x = new self::_GeneratedStreamImpl::•();
  x = new self::ByteStream::•(x);
  x = new self::_ControllerStream::•();
  [@vm.direct-call.metadata=_StreamImpl::foobar] [@vm.inferred-type.metadata=!? (skip check)] x.{self::Stream::foobar}(onData, onError: onError);
}
static method round4({[@vm.inferred-type.metadata=dart.core::Null? (value: null)] (dynamic) →* void onData = #C1}) → void {
  self::ByteStream* x = new self::ByteStream::•(new self::_ControllerStream::•());
  self::Stream* y = [@vm.direct-call.metadata=ByteStream::super_stream] [@vm.inferred-type.metadata=!] x.{self::ByteStream::super_stream};
  self::Stream* z = [@vm.direct-call.metadata=StreamView::_stream] [@vm.inferred-type.metadata=!] x.{self::StreamView::_stream};
  if([@vm.direct-call.metadata=Object::==] [@vm.inferred-type.metadata=dart.core::bool (skip check)] y.{self::Stream::==}(z)) {
    [@vm.direct-call.metadata=ByteStream::super_foobar2] [@vm.inferred-type.metadata=!? (skip check)] 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=ByteStream::super_foobar3] [@vm.inferred-type.metadata=!? (skip check)] 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();
}