library /*isNonNullableByDefault*/;
import self as self;
import "test_lib.dart" as tes;

import "org-dartlang-testcase:///test_lib.dart";

static method main() → dynamic {
  tes::test();
}

library /*isNonNullableByDefault*/;
//
// Problems in library:
//
// pkg/front_end/testcases/nnbd_mixed/mixin_from_opt_in/test_lib.dart:10:27: Error: The value 'null' can't be assigned to the parameter type 'int' because 'int' is not nullable.
//   int j = sub.mixinMethod(null);
//                           ^
//
// pkg/front_end/testcases/nnbd_mixed/mixin_from_opt_in/test_lib.dart:10:15: Error: A value of type 'int?' can't be assigned to a variable of type 'int' because 'int?' is nullable and 'int' isn't.
//   int j = sub.mixinMethod(null);
//               ^
//
// pkg/front_end/testcases/nnbd_mixed/mixin_from_opt_in/test_lib.dart:12:25: Error: A value of type 'int?' can't be assigned to a variable of type 'int' because 'int?' is nullable and 'int' isn't.
//   sub.mixinField2 = sub.mixinField1;
//                         ^
//
import self as tes;
import "opt_out_lib.dart" as opt;
import "dart:core" as core;

import "org-dartlang-testcase:///opt_out_lib.dart";

static method test() → dynamic {
  opt::SubClass sub = new opt::SubClass::•();
  core::int i = sub.{opt::_SubClass&Class&Mixin::classMethod}(null){(core::int*) →* core::int*};
  core::int j = invalid-expression "pkg/front_end/testcases/nnbd_mixed/mixin_from_opt_in/test_lib.dart:10:15: Error: A value of type 'int?' can't be assigned to a variable of type 'int' because 'int?' is nullable and 'int' isn't.
  int j = sub.mixinMethod(null);
              ^" in sub.{opt::_SubClass&Class&Mixin::mixinMethod}(invalid-expression "pkg/front_end/testcases/nnbd_mixed/mixin_from_opt_in/test_lib.dart:10:27: Error: The value 'null' can't be assigned to the parameter type 'int' because 'int' is not nullable.
  int j = sub.mixinMethod(null);
                          ^" in null as{TypeError,ForNonNullableByDefault} core::int){(core::int) →* core::int?} as{TypeError,ForNonNullableByDefault} core::int;
  sub.{opt::_SubClass&Class&Mixin::classField2} = sub.{opt::_SubClass&Class&Mixin::classField1}{core::int*};
  sub.{opt::_SubClass&Class&Mixin::mixinField2} = invalid-expression "pkg/front_end/testcases/nnbd_mixed/mixin_from_opt_in/test_lib.dart:12:25: Error: A value of type 'int?' can't be assigned to a variable of type 'int' because 'int?' is nullable and 'int' isn't.
  sub.mixinField2 = sub.mixinField1;
                        ^" in sub.{opt::_SubClass&Class&Mixin::mixinField1}{core::int?} as{TypeError,ForNonNullableByDefault} core::int;
}

library /*isNonNullableByDefault*/;
import self as self2;
import "dart:core" as core;

class Class extends core::Object {
  field core::int? classField1 = null;
  field core::int classField2 = 0;
  synthetic constructor •() → self2::Class
    : super core::Object::•()
    ;
  method classMethod(core::int i) → core::int? {}
}
abstract class Mixin extends core::Object /*isMixinDeclaration*/  {
  field core::int? mixinField1 = null;
  field core::int mixinField2 = 0;
  method mixinMethod(core::int i) → core::int? {}
}

library;
import self as opt;
import "opt_in_lib.dart" as self2;
import "dart:core" as core;

import "org-dartlang-testcase:///opt_in_lib.dart";

abstract class _SubClass&Class&Mixin extends self2::Class implements self2::Mixin /*isAnonymousMixin,isEliminatedMixin*/  {
  field core::int? mixinField1 = null /*isNonNullableByDefault, from org-dartlang-testcase:///opt_in_lib.dart */;
  field core::int mixinField2 = 0 /*isNonNullableByDefault, from org-dartlang-testcase:///opt_in_lib.dart */;
  synthetic constructor •() → opt::_SubClass&Class&Mixin*
    : super self2::Class::•()
    ;
  abstract member-signature get classField1() → core::int*; -> self2::Class::classField1
  abstract member-signature get classField2() → core::int*; -> self2::Class::classField2
  method /*isNonNullableByDefault, from org-dartlang-testcase:///opt_in_lib.dart */ mixinMethod(core::int i) → core::int? {}
  abstract member-signature method classMethod(core::int* i) → core::int*; -> self2::Class::classMethod
  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
  abstract member-signature set classField1(core::int* value) → void; -> self2::Class::classField1
  abstract member-signature set classField2(core::int* value) → void; -> self2::Class::classField2
}
class SubClass extends opt::_SubClass&Class&Mixin {
  synthetic constructor •() → opt::SubClass*
    : super opt::_SubClass&Class&Mixin::•()
    ;
}