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*>*
    : super core::Object::•()
    ;
  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*>*
    : super core::Object::•()
    ;
  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 = null;
  synthetic constructor •() → self::A<self::A::T*, self::A::U*, self::A::V*>*
    : super core::Object::•()
    ;
  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 = #C1]) → void {}
  set x(self::A::T* t) → void {}
  get mapContra() → core::Map<self::A::U*, self::Contravariant<self::A::V*>*>*
    return core::Map::•<self::A::U*, self::Contravariant<self::A::V*>*>();
  get mapContraFn() → core::Map<self::A::U*, (self::A::V*) →* void>*
    return core::Map::•<self::A::U*, (self::A::V*) →* void>();
  get mapInv() → core::Map<self::A::U*, self::Invariant<self::A::V*>*>*
    return core::Map::•<self::A::U*, self::Invariant<self::A::V*>*>();
  get mapInvFn() → core::Map<self::A::U*, (self::A::V*) →* self::A::V*>*
    return 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 = null;
  synthetic constructor •() → self::B<self::B::T*>*
    : super core::Object::•()
    ;
  method method(self::B::T* x) → self::B::T*
    return x;
  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 = null;
  synthetic constructor •() → self::C<self::C::T*>*
    : super core::Object::•()
    ;
  method method(self::C::T* x, [self::C::T* y = #C1]) → 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*>*
    : super core::Object::•()
    ;
  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*>*
    : self::E::f = f, super core::Object::•()
    ;
  method method(self::E::T* x) → core::int* {
    let final self::E::T* #t1 = x in this.{self::E::f}.call(#t1);
  }
  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*>*
    : super self::E::•(f)
    ;
  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*>*
    : super core::Object::•()
    ;
  method noSuchMethod(core::Invocation* _) → dynamic
    return 3;
  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(#C2, 1, #C3, #C4, core::Map::unmodifiable<core::Symbol*, dynamic>(#C5))) 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(#C6, 0, #C3, core::List::unmodifiable<dynamic>(<dynamic>[x]), core::Map::unmodifiable<core::Symbol*, dynamic>(#C5))) 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(#C7, 2, #C3, core::List::unmodifiable<dynamic>(<dynamic>[x]), core::Map::unmodifiable<core::Symbol*, dynamic>(#C5)));
  no-such-method-forwarder set x(self::NoSuchMethod::T* value) → void
    return this.{self::NoSuchMethod::noSuchMethod}(new core::_InvocationMirror::_withType(#C8, 2, #C3, core::List::unmodifiable<dynamic>(<dynamic>[value]), core::Map::unmodifiable<core::Symbol*, dynamic>(#C5)));
}
static method main() → dynamic {
  self::A<core::int*, core::num*, core::String*>* a = new self::A::•<core::int*, core::num*, core::String*>();
  self::expect(null, a.{self::A::field});
  a.{self::A::method}(3, (core::num* num) → core::Null? {}, "test");
  a.{self::A::method2}(3);
  a.{self::A::x} = 3;
  core::Map<core::num*, self::Contravariant<core::String*>*>* mapContra = a.{self::A::mapContra} as{TypeError,CovarianceCheck} core::Map<core::num*, self::Contravariant<core::String*>*>*;
  core::Map<core::num*, (core::String*) →* void>* mapContraFn = a.{self::A::mapContraFn} as{TypeError,CovarianceCheck} core::Map<core::num*, (core::String*) →* void>*;
  core::Map<core::num*, self::Invariant<core::String*>*>* mapInv = a.{self::A::mapInv} as{TypeError,CovarianceCheck} core::Map<core::num*, self::Invariant<core::String*>*>*;
  core::Map<core::num*, (core::String*) →* core::String*>* mapInvFn = a.{self::A::mapInvFn} as{TypeError,CovarianceCheck} core::Map<core::num*, (core::String*) →* core::String*>*;
  self::B<core::int*>* b = new self::B::•<core::int*>();
  b.{self::B::x} = 3;
  self::expect(3, b.{self::B::x});
  self::expect(3, b.{self::B::method}(3));
  b.{self::B::y} = 3;
  self::C<core::int*>* c = new self::C::•<core::int*>();
  self::expect(null, c.{self::C::field});
  c.{self::C::method}(3, 2);
  c.{self::C::x} = 3;
  self::D<core::Object*>* d = new self::F::•<core::String*>((core::String* s) → core::Null? {});
  d.{self::D::method}("test");
  self::NoSuchMethod<core::num*>* nsm = new self::NoSuchMethod::•<core::num*>();
  self::expect(3, nsm.{self::B::method}(3));
}
static method expect(dynamic expected, dynamic actual) → dynamic {
  if(!expected.{core::Object::==}(actual)) {
    throw "Mismatch: expected=${expected}, actual=${actual}";
  }
}

constants  {
  #C1 = null
  #C2 = #x
  #C3 = <core::Type*>[]
  #C4 = <dynamic>[]
  #C5 = core::_ImmutableMap<core::Symbol*, dynamic> {_kvPairs:#C4}
  #C6 = #method
  #C7 = #y=
  #C8 = #x=
}