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

class C<T extends core::Object> extends core::Object {
  final field (self::C::T) → core::num plusResult;
  constructor •((self::C::T) → core::num plusResult) → void
    : self::C::plusResult = plusResult, super core::Object::•()
    ;
  operator +(core::int i) → (self::C::T) → core::num
    return this.{self::C::plusResult};
}
class D extends core::Object {
  final field self::C<core::num> getValue;
  field (core::int) → core::int setValue = null;
  constructor •(self::C<core::num> getValue) → void
    : self::D::getValue = getValue, super core::Object::•()
    ;
  get value() → self::C<core::num>
    return this.{self::D::getValue};
  set value((core::int) → core::int value) → void {
    this.{self::D::setValue} = value;
  }
}
static method expectTypeError(() → void callback) → void {
  try {
    callback.call();
    throw "Expected TypeError, did not occur";
  }
  on core::TypeError catch(no-exception-var) {
  }
}
static method expect(core::Object value, core::Object expected) → void {
  if(!value.==(expected)) {
    throw "Expected ${expected}, got ${value}";
  }
}
static method numToInt(core::num n) → core::int
  return 1;
static method numToNum(core::num n) → core::num
  return 2;
static method main() → void {
  self::D d = new self::D::•(new self::C::•<dynamic>(self::numToInt));
  let final dynamic #t1 = d in #t1.value = #t1.value.+(1);
  self::expect(d.setValue(0), 1);
  d = new self::D::•(new self::C::•<dynamic>(self::numToNum));
  self::expectTypeError(() → dynamic {
    let final dynamic #t2 = d in #t2.value = #t2.value.+(1);
  });
  self::expect(d.setValue, null);
}