Language/Expressions/Identifier_Reference/evaluation_library_or_getter_t02.dart

// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

// @dart = 2.9

/// @assertion Evaluation of an identifier expression e of the form id proceeds
/// as follows:
/// Let d be the innermost declaration in the enclosing lexical scope whose name
/// is id or id=. If no such declaration exists in the lexical scope, let d be
/// the declaration of the inherited member named id if it exists.
/// ...
/// • If d is the declaration of a library variable, top-level getter or
///   top-level setter, then e is equivalent to the getter invocation id.
/// @description  Checks that if evaluation of the initializer expression of a
/// library variable is not successful, the variable is initialized with [:null:].
/// @author msyabro
/// @reviewer iefremov

import '../../../Utils/expect.dart';

dynamic o = '';

var tlVar = o.thatMethod();
int tlTyped = o.thatMethod();
final tlFinal = o.thatMethod();
final int tlFinalTyped = o.thatMethod();


main() {
  try {
    tlVar;
    Expect.fail('NoSuchMethodError is expected');
  } on NoSuchMethodError catch (e) {
    Expect.equals(null, tlVar);
  }

  try {
    tlTyped;
    Expect.fail('NoSuchMethodError is expected');
  } on NoSuchMethodError catch (e) {
    Expect.equals(null, tlTyped);
  }

  try {
    tlFinal;
    Expect.fail('NoSuchMethodError is expected');
  } on NoSuchMethodError catch (e) {
    Expect.equals(null, tlFinal);
  }

  try {
    tlFinalTyped;
    Expect.fail('NoSuchMethodError is expected');
  } on NoSuchMethodError catch (e) {
    Expect.equals(null, tlFinalTyped);
  }
}