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

typedef ContraFunction<contravariant T extends core::Object* = dynamic> = (T*) →* void;
typedef InvFunction<invariant T extends core::Object* = dynamic> = (T*) →* T*;
class Contravariant<contravariant T extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::Contravariant<self::Contravariant::T*>*
    ;
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ toString() → core::String*; -> core::Object::toString
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ runtimeType() → core::Type*; -> core::Object::runtimeType
}
class Invariant<invariant T extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::Invariant<self::Invariant::T*>*
    ;
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ toString() → core::String*; -> core::Object::toString
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ runtimeType() → core::Type*; -> core::Object::runtimeType
}
class A<contravariant T extends core::Object* = dynamic, U extends core::Object* = dynamic, V extends core::Object* = dynamic> extends core::Object {
  final field (self::A::T*) →* void field;
  synthetic constructor •() → self::A<self::A::T*, self::A::U*, self::A::V*>*
    ;
  method method(self::A::T* t, (self::A::U*) →* void u, generic-covariant-impl self::A::V* v) → void
    ;
  method method2(self::A::T* x, [self::A::T* y]) → void
    ;
  set x(self::A::T* t) → void
    ;
  get mapContra() → core::Map<self::A::U*, self::Contravariant<self::A::V*>*>*
    ;
  get mapContraFn() → core::Map<self::A::U*, (self::A::V*) →* void>*
    ;
  get mapInv() → core::Map<self::A::U*, self::Invariant<self::A::V*>*>*
    ;
  get mapInvFn() → core::Map<self::A::U*, (self::A::V*) →* self::A::V*>*
    ;
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ toString() → core::String*; -> core::Object::toString
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ runtimeType() → core::Type*; -> core::Object::runtimeType
}
class B<invariant T extends core::Object* = dynamic> extends core::Object {
  field self::B::T* x;
  synthetic constructor •() → self::B<self::B::T*>*
    ;
  method method(self::B::T* x) → self::B::T*
    ;
  set y(self::B::T* x) → void
    ;
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ toString() → core::String*; -> core::Object::toString
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ runtimeType() → core::Type*; -> core::Object::runtimeType
}
class C<contravariant T extends core::Object* = dynamic> extends core::Object {
  final field (self::C::T*) →* void field;
  synthetic constructor •() → self::C<self::C::T*>*
    ;
  method method(self::C::T* x, [self::C::T* y]) → void
    ;
  set x(self::C::T* t) → void
    ;
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ toString() → core::String*; -> core::Object::toString
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ runtimeType() → core::Type*; -> core::Object::runtimeType
}
abstract class D<T extends core::Object* = dynamic> extends core::Object {
  synthetic constructor •() → self::D<self::D::T*>*
    ;
  abstract method method(generic-covariant-impl self::D::T* x) → core::int*;
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ toString() → core::String*; -> core::Object::toString
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ runtimeType() → core::Type*; -> core::Object::runtimeType
}
class E<invariant T extends core::Object* = dynamic> extends core::Object {
  final field (self::E::T*) →* void f;
  constructor •((self::E::T*) →* void f) → self::E<self::E::T*>*
    ;
  method method(self::E::T* x) → core::int*
    ;
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _identityHashCode() → core::int*; -> core::Object::_identityHashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _instanceOf(dynamic instantiatorTypeArguments, dynamic functionTypeArguments, dynamic type) → core::bool*; -> core::Object::_instanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOf(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOf
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfTrue(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfTrue
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ _simpleInstanceOfFalse(dynamic type) → core::bool*; -> core::Object::_simpleInstanceOfFalse
  abstract member-signature operator /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ ==(dynamic other) → core::bool*; -> core::Object::==
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ hashCode() → core::int*; -> core::Object::hashCode
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ toString() → core::String*; -> core::Object::toString
  abstract member-signature method /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ noSuchMethod(core::Invocation* invocation) → dynamic; -> core::Object::noSuchMethod
  abstract member-signature get /* from org-dartlang-sdk:///sdk/lib/_internal/vm/lib/object_patch.dart */ runtimeType() → core::Type*; -> core::Object::runtimeType
}
class F<invariant T extends core::Object* = dynamic> extends self::E<self::F::T*> implements self::D<self::F::T*> {
  constructor •((self::F::T*) →* void f) → self::F<self::F::T*>*
    ;
  forwarding-stub method method(generic-covariant-impl self::F::T* x) → core::int*
    return super.{self::E::method}(x);
}
class NoSuchMethod<invariant T extends core::Object* = dynamic> extends core::Object implements self::B<self::NoSuchMethod::T*> {
  synthetic constructor •() → self::NoSuchMethod<self::NoSuchMethod::T*>*
    ;
  method noSuchMethod(core::Invocation* _) → dynamic
    ;
  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 get runtimeType() → core::Type*; -> core::Object::runtimeType
  no-such-method-forwarder get x() → self::NoSuchMethod::T*
    return this.{self::NoSuchMethod::noSuchMethod}(new core::_InvocationMirror::_withType(#x, 1, const <core::Type*>[], const <dynamic>[], core::Map::unmodifiable<core::Symbol*, dynamic>(const <core::Symbol*, dynamic>{}))) as{TypeError,ForDynamic} self::NoSuchMethod::T*;
  no-such-method-forwarder method method(self::NoSuchMethod::T* x) → self::NoSuchMethod::T*
    return this.{self::NoSuchMethod::noSuchMethod}(new core::_InvocationMirror::_withType(#method, 0, const <core::Type*>[], core::List::unmodifiable<dynamic>(<dynamic>[x]), core::Map::unmodifiable<core::Symbol*, dynamic>(const <core::Symbol*, dynamic>{}))) as{TypeError,ForDynamic} self::NoSuchMethod::T*;
  no-such-method-forwarder set y(self::NoSuchMethod::T* x) → void
    return this.{self::NoSuchMethod::noSuchMethod}(new core::_InvocationMirror::_withType(#y=, 2, const <core::Type*>[], core::List::unmodifiable<dynamic>(<dynamic>[x]), core::Map::unmodifiable<core::Symbol*, dynamic>(const <core::Symbol*, dynamic>{})));
  no-such-method-forwarder set x(self::NoSuchMethod::T* value) → void
    return this.{self::NoSuchMethod::noSuchMethod}(new core::_InvocationMirror::_withType(#x=, 2, const <core::Type*>[], core::List::unmodifiable<dynamic>(<dynamic>[value]), core::Map::unmodifiable<core::Symbol*, dynamic>(const <core::Symbol*, dynamic>{})));
}
static method main() → dynamic
  ;
static method expect(dynamic expected, dynamic actual) → dynamic
  ;


Extra constant evaluation status:
Evaluated: SymbolLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:22:5 -> SymbolConstant(#x)
Evaluated: ListLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:22:5 -> ListConstant(const <Type*>[])
Evaluated: ListLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:22:5 -> ListConstant(const <dynamic>[])
Evaluated: MapLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:22:5 -> InstanceConstant(const _ImmutableMap<Symbol*, dynamic>{_ImmutableMap._kvPairs: const <dynamic>[]})
Evaluated: SymbolLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:23:5 -> SymbolConstant(#method)
Evaluated: ListLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:23:5 -> ListConstant(const <Type*>[])
Evaluated: MapLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:23:5 -> InstanceConstant(const _ImmutableMap<Symbol*, dynamic>{_ImmutableMap._kvPairs: const <dynamic>[]})
Evaluated: SymbolLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:24:12 -> SymbolConstant(#y=)
Evaluated: ListLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:24:12 -> ListConstant(const <Type*>[])
Evaluated: MapLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:24:12 -> InstanceConstant(const _ImmutableMap<Symbol*, dynamic>{_ImmutableMap._kvPairs: const <dynamic>[]})
Evaluated: SymbolLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:22:5 -> SymbolConstant(#x=)
Evaluated: ListLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:22:5 -> ListConstant(const <Type*>[])
Evaluated: MapLiteral @ org-dartlang-testcase:///generic_covariance_sound_variance.dart:22:5 -> InstanceConstant(const _ImmutableMap<Symbol*, dynamic>{_ImmutableMap._kvPairs: const <dynamic>[]})
Extra constant evaluation: evaluated: 42, effectively constant: 13