library /*isNonNullableByDefault*/;
import self as self;
import "dart:core" as core;
import "package:macro/macro.dart" as mac;

import "package:macro/macro.dart";

class A extends core::Object {
  synthetic constructor •() → self::A
    : super core::Object::•()
    ;
}
class B1 extends core::Object {
  synthetic constructor •() → self::B1
    : super core::Object::•()
    ;
}
class B2 extends self::B1 {
  synthetic constructor •() → self::B2
    : super self::B1::•()
    ;
}
class C1 extends self::C2 {
  synthetic constructor •() → self::C1
    : super self::C2::•()
    ;
}
class C2 extends core::Object {
  synthetic constructor •() → self::C2
    : super core::Object::•()
    ;
}
class D1 extends core::Object {
  synthetic constructor •() → self::D1
    : super core::Object::•()
    ;
}
class D2 extends core::Object {
  synthetic constructor •() → self::D2
    : super core::Object::•()
    ;
}
@#C1
@#C2
external static method topLevelFunction1(self::A a) → self::A;
@#C1
@#C2
external static method topLevelFunction2(self::B1 a) → self::B2;
@#C1
@#C2
external static method topLevelFunction3(self::C1 a) → self::C2;
@#C1
@#C2
external static method topLevelFunction4(self::D1 a) → self::D2;

constants  {
  #C1 = mac::FunctionDeclarationsMacro2 {}
  #C2 = mac::FunctionDefinitionMacro2 {}
}