| library; | 
 | import self as self; | 
 | import "dart:core" as core; | 
 |  | 
 | class Foo extends core::Object { | 
 |   field self::Bar* _field = new self::Bar::•(); | 
 |   synthetic constructor •() → self::Foo* | 
 |     : super core::Object::•() | 
 |     ; | 
 |   abstract member-signature get _identityHashCode() → core::int*; -> core::Object::_identityHashCode | 
 |   abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf | 
 |   abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf | 
 |   abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue | 
 |   abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse | 
 |   abstract member-signature operator ==(dynamic other) → core::bool*; -> core::Object::== | 
 |   abstract member-signature get hashCode() → core::int*; -> core::Object::hashCode | 
 |   abstract member-signature method toString() → core::String*; -> core::Object::toString | 
 |   abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod | 
 |   abstract member-signature get runtimeType() → core::Type*; -> core::Object::runtimeType | 
 | } | 
 | class Bar extends core::Object { | 
 |   synthetic constructor •() → self::Bar* | 
 |     : super core::Object::•() | 
 |     ; | 
 |   abstract member-signature get _identityHashCode() → core::int*; -> core::Object::_identityHashCode | 
 |   abstract member-signature method _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf | 
 |   abstract member-signature method _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf | 
 |   abstract member-signature method _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue | 
 |   abstract member-signature method _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse | 
 |   abstract member-signature operator ==(dynamic other) → core::bool*; -> core::Object::== | 
 |   abstract member-signature get hashCode() → core::int*; -> core::Object::hashCode | 
 |   abstract member-signature method toString() → core::String*; -> core::Object::toString | 
 |   abstract member-signature method noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod | 
 |   abstract member-signature get runtimeType() → core::Type*; -> core::Object::runtimeType | 
 | } | 
 | static method useCallback(dynamic callback) → dynamic { | 
 |   dynamic _ = callback{dynamic}.call(); | 
 | } | 
 | static method main() → dynamic { | 
 |   dynamic x; | 
 |   function inner() → self::Foo* { | 
 |     x = new self::Foo::•(); | 
 |     return new self::Foo::•(); | 
 |   } | 
 |   self::useCallback(inner); | 
 |   self::Bar* _ = inner(){() →* self::Foo*}.{self::Foo::_field}{self::Bar*}; | 
 | } |