| // 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. |
| |
| /// @assertion Let d be the declaration of a variable v. If d is a local or |
| /// instance variable, then the invocation of the implicit getter of v |
| /// evaluates to the value stored in v. |
| /// If d is a static or library variable then the implicit getter method of v |
| /// executes as follows: |
| /// - Non-constant variable declaration with initializer. If d is of one of the |
| /// forms var v = e; , T v = e; , final v = e; , final T v = e; , static |
| /// v = e; , static T v = e; , static final v = e; or static final T v = e; |
| /// and no value has yet been stored into v then the initializer expression |
| /// e is evaluated. If, during the evaluation of e, the getter for v is |
| /// invoked, a CyclicInitializationError is thrown. If the evaluation |
| /// succeeded yielding an object o, let r = o, otherwise let r = null. In |
| /// any case, r is stored into v. The result of executing the getter is r. |
| /// - Constant variable declaration. If d is of one of the forms const v = e; , |
| /// const T v = e; , static const v = e; or static const T v = e; the result |
| /// of the getter is the value of the compile time constant e. Note that a |
| /// compile time constant cannot depend on itself, so no cyclic references |
| /// can occur. Otherwise |
| /// - Variable declaration without initializer. The result of executing the |
| /// getter method is the value stored in v. |
| /// @description Checks that the initializer expression is evaluated at |
| /// the first use of a static variable. |
| /// @author msyabro |
| |
| import "../../../Utils/expect.dart"; |
| |
| var counter = 0; |
| |
| class C { |
| static var sVar = ++counter; |
| static int sTyped = ++counter; |
| static final sFinal = ++counter; |
| static final int sFinalTyped = ++counter; |
| } |
| |
| main() { |
| Expect.equals(0, counter); |
| Expect.equals(1, C.sVar); |
| Expect.equals(1, counter); |
| Expect.equals(2, C.sTyped); |
| Expect.equals(2, counter); |
| Expect.equals(3, C.sFinal); |
| Expect.equals(3, counter); |
| Expect.equals(4, C.sFinalTyped); |
| Expect.equals(4, counter); |
| } |