test/end2end/foo.dart

import 'foo_sub.dart';

class Foo<T> {
  const Foo();

  const factory Foo.sub() = FooSub2;

  String positionalParameter(int x) => 'Real';
  String namedParameter({required int x}) => 'Real';
  String get getter => 'Real';
  int operator +(int arg) => arg + 1;
  String parameterWithDefault([int x = 0]) => 'Real';
  String parameterWithDefault2([Foo<int> x = const FooSub()]) => 'Real';
  String parameterWithDefaultFactoryRedirect([Foo<T> x = const Foo.sub()]) =>
      'Real';
  String? nullableMethod(int x) => 'Real';
  String? get nullableGetter => 'Real';
  String methodWithBarArg(Bar bar) => 'result';
  set setter(int? value) {}
  void returnsVoid() {}
  Future<void> returnsFutureVoid() => Future.value();
  Future<void>? returnsNullableFutureVoid() => Future.value();
  Future<T> returnsFuture(T x) => Future.value(x);
  Bar returnsBar(int arg) => Bar();
  String Function(int x, [String s]) returnsFunction() => (x, [s = '']) => '';
  String Function(int x, {String s}) returnsFunctionNamed() =>
      (x, {s = ''}) => '';
}

class Bar {
  int get x => 0;
  int f() => 0;
}

class _Private {}

final private = _Private();

abstract class Baz<S> {
  T returnsTypeVariable<T>();
  T returnsBoundedTypeVariable<T extends num?>();
  T returnsTypeVariableFromTwo<T, U>();
  S Function(S) returnsGenericFunction();
  S get typeVariableField;
  _Private returnsPrivate();
  _Private get privateTypeField;
  void privateArg(_Private arg);
  _Private $hasDollarInName();
}

class HasPrivate {
  Object? _p;

  Object? get p => _p;
}

void setPrivate(HasPrivate hasPrivate) {
  hasPrivate._p = 7;
}

mixin HasPrivateMixin implements HasPrivate {
  @override
  Object? _p;
}