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

class A2 extends core::Object {
  field core::String? foo = null;
  synthetic constructor •() → self::A2
    : super core::Object::•()
    ;
}
class A5 extends core::Object {
  synthetic constructor •() → self::A5
    : super core::Object::•()
    ;
  operator []=(core::int index, core::String? value) → void {}
  operator [](core::int index) → core::String?
    return null;
}
class B5 extends self::A5 {
  synthetic constructor •() → self::B5
    : super self::A5::•()
    ;
  method test5() → dynamic {
    core::String s = let final core::int #t1 = 0 in let final core::String? #t2 = super.{self::A5::[]}(#t1) in #t2.{core::String::==}(null) ?{core::String} let final core::String #t3 = "bar" in let final void #t4 = super.{self::A5::[]=}(#t1, #t3) in #t3 : #t2{core::String};
  }
}
class A7 extends core::Object {
  field core::String foo = "foo";
  field core::String? bar = null;
  synthetic constructor •() → self::A7
    : super core::Object::•()
    ;
}
extension E6 on core::double {
  operator []= = self::E6|[]=;
  operator [] = self::E6|[];
}
static method hest1<T extends core::Object? = dynamic>() → self::hest1::T%
  return throw "hest";
static method test1() → dynamic {
  function foo() → core::String?
    return null;
  function bar() → core::String
    return "bar";
  core::String s = let final core::String? #t5 = foo.call() in #t5.{core::String::==}(null) ?{core::String} bar.call() : #t5{core::String};
  core::String s2 = let final core::String? #t6 = self::hest1<core::String?>() in #t6.{core::String::==}(null) ?{core::String} "fisk" : #t6{core::String};
}
static method test2(self::A2 a) → dynamic {
  core::String s = let final self::A2 #t7 = a in let final core::String? #t8 = #t7.{self::A2::foo} in #t8.{core::String::==}(null) ?{core::String} #t7.{self::A2::foo} = "bar" : #t8{core::String};
}
static method test3() → dynamic {
  core::String? s = null;
  core::String s2 = let final core::String? #t9 = s in #t9.{core::String::==}(null) ?{core::String} s = "bar" : #t9{core::String};
}
static method test4() → dynamic {
  core::List<core::String?> list = <core::String?>[null];
  core::String s = let final core::List<core::String?> #t10 = list in let final core::int #t11 = 0 in let final core::String? #t12 = #t10.{core::List::[]}(#t11) in #t12.{core::String::==}(null) ?{core::String} let final core::String #t13 = "bar" in let final void #t14 = #t10.{core::List::[]=}(#t11, #t13) in #t13 : #t12{core::String};
}
static method E6|[]=(lowered final core::double #this, core::int index, core::String? value) → void {}
static method E6|[](lowered final core::double #this, core::int index) → core::String?
  return null;
static method test6() → dynamic {
  core::String s = let final core::double #t15 = 3.14 in let final core::int #t16 = 0 in let final core::String? #t17 = self::E6|[](#t15, #t16) in #t17.{core::String::==}(null) ?{core::String} let final core::String #t18 = "bar" in let final void #t19 = self::E6|[]=(#t15, #t16, #t18) in #t18 : #t17{core::String};
}
static method test7(self::A7? a) → dynamic {
  core::String? s = let final self::A7? #t20 = a in #t20.{core::Object::==}(null) ?{core::String?} null : let final core::String #t21 = #t20.{self::A7::foo} in #t21.{core::String::==}(null) ?{core::String} #t20.{self::A7::foo} = "bar" : #t21;
  core::String? s2 = let final self::A7? #t22 = a in #t22.{core::Object::==}(null) ?{core::String?} null : let final core::String? #t23 = #t22.{self::A7::bar} in #t23.{core::String::==}(null) ?{core::String} #t22.{self::A7::bar} = "bar" : #t23{core::String};
}
static method main() → dynamic {}