class Class {
  int property = 0;
  int method() => 0;
  Function functionField = () {};
  void Function() functionTypeField = () {};
  Function get functionGetter => () {};
  void Function() get functionTypeGetter => () {};
}

extension Extension on Class {
  int operator +(int value) => 0;
  int operator -() => 0;
  int operator [](int index) => 0;
  void operator []=(int index, int value) {}
  int call() => 0;
  int get extensionProperty => 0;
  void set extensionProperty(int value) {}
  int extensionMethod() => 0;
  Function get extensionFunctionGetter => () {};
  void Function() get extensionFunctionTypeGetter => () {};
}

Function? get nullableFunction => () {};
void Function()? get nullableFunctionType => () {};
int? get nullableInt => 0;
Map<dynamic, dynamic>? get nullableMap => {};
Class? get nullableClass => new Class();
var topLevelBinary = nullableInt + 0;
var topLevelUnary = -nullableInt;
var topLevelIndexGet = nullableMap[0];
var topLevelIndexSet = nullableMap[0] = 1;
var topLevelIndexGetSet = nullableMap[0] += 1;
var topLevelPropertyGet = nullableClass.property;
var topLevelPropertySet = nullableClass.property = 1;
var topLevelPropertyGetSet = nullableClass.property += 1;
var topLevelMethodInvocation = nullableClass.method();
var topLevelMethodTearOff = nullableClass.method;
var topLevelFunctionImplicitCall = nullableFunction();
var topLevelFunctionExplicitCall = nullableFunction.call();
var topLevelFunctionTearOff = nullableFunction.call;
var topLevelFunctionTypeImplicitCall = nullableFunctionType();
var topLevelFunctionTypeExplicitCall = nullableFunctionType.call();
var topLevelFunctionTypeTearOff = nullableFunctionType.call;
var topLevelFunctionField = nullableClass.functionField();
var topLevelFunctionTypeField = nullableClass.functionTypeField();
var topLevelFunctionGetter = nullableClass.functionGetter();
var topLevelFunctionTypeGetter = nullableClass.functionTypeGetter();
var topLevelExtensionBinary = nullableClass + 0;
var topLevelExtensionUnary = -nullableClass;
var topLevelExtensionIndexGet = nullableClass[0];
var topLevelExtensionIndexSet = nullableClass[0] = 1;
var topLevelExtensionIndexGetSet = nullableClass[0] += 1;
var topLevelExtensionPropertyGet = nullableClass.extensionProperty;
var topLevelExtensionPropertySet = nullableClass.extensionProperty = 1;
var topLevelExtensionPropertyGetSet = nullableClass.extensionProperty += 1;
var topLevelExtensionMethodInvocation = nullableClass.extensionMethod();
var topLevelExtensionMethodTearOff = nullableClass.extensionMethod;
var topLevelExtensionFunctionTypeImplicitCall = nullableClass();
var topLevelExtensionFunctionTypeExplicitCall = nullableClass.call();
var topLevelExtensionFunctionTypeTearOff = nullableClass.call;
var topLevelExtensionFunctionGetter = nullableClass.extensionFunctionGetter();
var topLevelExtensionFunctionTypeGetter =
    nullableClass.extensionFunctionTypeGetter();
test() {}
main() {}