blob: 1d3afb0fc7d2fc71c0b348b5ad4cb832d0d50060 [file] [log] [blame]
* 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);