| library /*isNonNullableByDefault*/; |
| // |
| // Problems in library: |
| // |
| // pkg/front_end/testcases/nnbd_mixed/sink_hierarchy.dart:5:1: Error: A library can't opt out of non-nullable by default, when in nnbd-strong mode. |
| // // @dart=2.6 |
| // ^^^^^^^^^^^^ |
| // |
| import self as self; |
| import "dart:core" as core; |
| import "dart:async" as asy; |
| |
| abstract class Sink<T extends core::Object? = dynamic> extends core::Object { |
| synthetic constructor •() → self::Sink<self::Sink::T%> |
| ; |
| abstract method close() → void; |
| } |
| abstract class EventSink<T extends core::Object? = dynamic> extends core::Object implements self::Sink<self::EventSink::T%> { |
| synthetic constructor •() → self::EventSink<self::EventSink::T%> |
| ; |
| abstract method close() → void; |
| } |
| abstract class StreamConsumer<S extends core::Object? = dynamic> extends core::Object { |
| synthetic constructor •() → self::StreamConsumer<self::StreamConsumer::S%> |
| ; |
| abstract method close() → asy::Future<dynamic>; |
| } |
| abstract class StreamSink<S extends core::Object? = dynamic> extends core::Object implements self::EventSink<self::StreamSink::S%>, self::StreamConsumer<self::StreamSink::S%> { |
| synthetic constructor •() → self::StreamSink<self::StreamSink::S%> |
| ; |
| abstract method close() → asy::Future<dynamic>; |
| } |
| static method main() → dynamic |
| ; |