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

class A extends core::Object {
  synthetic constructor •() → self::A
    : super core::Object::•()
    ;
  get b() → dynamic
    return throw "foo";
}
class B extends self::A {
  synthetic constructor •() → self::B
    : super self::A::•()
    ;
  get b() → dynamic
    return 42;
}
static method method1((self::A, self::A) r) → dynamic {
  dynamic b1;
  dynamic b2;
  {
    final synthesized(self::A, self::A) #0#0 = r;
    b1 = #0#0.$1{self::A}.{self::A::b}{dynamic};
    b2 = #0#0.$2{self::A}.{self::A::b}{dynamic};
  }
  return b1;
}
static method method2((self::A, self::A) r) → dynamic {
  dynamic b1;
  dynamic b2;
  try {
    {
      final synthesized(self::A, self::A) #0#0 = r;
      dynamic #t1;
      dynamic #t2;
      #t1 = #0#0.$1{self::A}.{self::A::b}{dynamic};
      #t2 = #0#0.$2{self::A}.{self::A::b}{dynamic};
      b1 = #t1;
      b2 = #t2;
    }
  }
  on core::Object catch(final core::Object _) {
  }
  return b1;
}
static method method3((self::A, self::A) r) → dynamic {
  dynamic b1;
  dynamic b2;
  self::allowThrow(() → void {
    {
      final synthesized(self::A, self::A) #0#0 = r;
      dynamic #t3;
      dynamic #t4;
      #t3 = #0#0.$1{self::A}.{self::A::b}{dynamic};
      #t4 = #0#0.$2{self::A}.{self::A::b}{dynamic};
      b1 = #t3;
      b2 = #t4;
    }
  });
  return b1;
}
static method method4((self::A, self::A) r) → dynamic {
  dynamic b1;
  dynamic b2;
  function local() → Null {
    {
      final synthesized(self::A, self::A) #0#0 = r;
      dynamic #t5;
      dynamic #t6;
      #t5 = #0#0.$1{self::A}.{self::A::b}{dynamic};
      #t6 = #0#0.$2{self::A}.{self::A::b}{dynamic};
      b1 = #t5;
      b2 = #t6;
    }
  }
  self::allowThrow(local);
  return b1;
}
static method main() → dynamic {
  self::throws(() → void => self::method1((new self::B::•(), new self::A::•())));
  self::expect(null, self::method2((new self::B::•(), new self::A::•())));
  self::expect(null, self::method3((new self::B::•(), new self::A::•())));
  self::expect(null, self::method4((new self::B::•(), new self::A::•())));
  self::expect(42, self::method1((new self::B::•(), new self::B::•())));
  self::expect(42, self::method2((new self::B::•(), new self::B::•())));
  self::expect(42, self::method3((new self::B::•(), new self::B::•())));
  self::expect(42, self::method4((new self::B::•(), new self::B::•())));
}
static method expect(dynamic expected, dynamic actual) → dynamic {
  if(!(expected =={core::Object::==}{(core::Object) → core::bool} actual))
    throw "Expected ${expected}, actual ${actual}";
}
static method throws(() → void f) → dynamic {
  try {
    f(){() → void};
  }
  on core::Object catch(final core::Object _) {
    return;
  }
  throw "Missing throw";
}
static method allowThrow(() → void f) → dynamic {
  try {
    f(){() → void};
  }
  on core::Object catch(final core::Object _) {
  }
}