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

typedef F<T extends core::Object> = (T) → void;
class B<T extends core::Object, U extends (self::B::T) → void> extends core::Object {
  synthetic constructor •() → void
    : super core::Object::•()
    ;
  operator +(dynamic other) → self::B<self::B::T, (self::B::T) → void>
    return null;
}
class C extends core::Object {
  field self::B<core::num, (core::num) → void> x = null;
  static field self::B<core::num, (core::num) → void> y = null;
  synthetic constructor •() → void
    : super core::Object::•()
    ;
  operator [](core::int i) → self::B<core::num, (core::num) → void>
    return null;
  operator []=(core::int i, self::B<core::num, (core::num) → void> v) → void {}
}
static method test1(self::B<core::num, (core::num) → void> b) → void {
  b = b.+(1);
  dynamic x = b = b.+(2);
}
static method test2(self::C c) → void {
  let final dynamic #t1 = c in let final dynamic #t2 = 0 in #t1.[]=(#t2, #t1.[](#t2).+(1));
  dynamic x = let final dynamic #t3 = c in let final dynamic #t4 = 0 in let final dynamic #t5 = #t3.[](#t4).+(2) in let final dynamic #t6 = #t3.[]=(#t4, #t5) in #t5;
}
static method test3(self::C c) → void {
  let final dynamic #t7 = c in #t7.x = #t7.x.+(1);
  dynamic x = let final dynamic #t8 = c in #t8.x = #t8.x.+(2);
}
static method test4(self::C c) → void {
  self::C::y = self::C::y.+(1);
  dynamic x = self::C::y = self::C::y.+(2);
}
static method main() → void {}