| // 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. |
| |
| import "package:expect/expect.dart"; |
| |
| // Test class literal expressions. |
| |
| class Class { |
| static fisk() => 42; |
| } |
| |
| foo(x) {} |
| |
| main() { |
| if (false) { |
| Class(); /// 02: compile-time error |
| Class[0]; /// 05: compile-time error |
| var x = Class(); /// 07: compile-time error |
| var x = Class[0]; /// 10: compile-time error |
| var x = Class[0].field; /// 11: compile-time error |
| var x = Class[0].method(); /// 12: compile-time error |
| foo(Class()); /// 14: compile-time error |
| foo(Class[0]); /// 17: compile-time error |
| foo(Class[0].field); /// 18: compile-time error |
| foo(Class[0].method()); /// 19: compile-time error |
| Class[0] = 91; /// 22: compile-time error |
| Class++; /// 23: compile-time error |
| ++Class; /// 24: compile-time error |
| Class[0] += 3; /// 27: compile-time error |
| ++Class[0]; /// 28: compile-time error |
| Class[0]++; /// 29: compile-time error |
| } |
| Expect.equals(42, Class.fisk()); |
| Expect.equals(null, foo(Class.fisk())); |
| |
| // Verify references to a class literal are allowed. |
| Class; |
| var x = Class; |
| foo(Class); |
| Expect.isFalse(Class == null); |
| |
| // Verify that dereferencing a class literal is a runtime error. |
| Expect.throws(() { Class.method(); }, (e) => e is NoSuchMethodError); |
| Expect.throws(() { Class.field; }, (e) => e is NoSuchMethodError); |
| Expect.throws(() { var x = Class.method(); }, (e) => e is NoSuchMethodError); |
| Expect.throws(() { var x = Class.field; }, (e) => e is NoSuchMethodError); |
| Expect.throws(() { foo(Class.method()); }, (e) => e is NoSuchMethodError); |
| Expect.throws(() { foo(Class.field); }, (e) => e is NoSuchMethodError); |
| Expect.throws(() { Class / 3; }, (e) => e is NoSuchMethodError); |
| Expect.throws(() { Class += 3; }, (e) => e is NoSuchMethodError); |
| |
| // Verify that a class literal is its runtimeType. |
| var obj = new Class(); |
| Expect.identical(Class, obj.runtimeType); |
| |
| // Verify that a class literal isn't a string literal. |
| Expect.notEquals(Class, "Class"); |
| |
| // Verify toString() works for class literals. |
| Expect.equals((Class).toString(), "Class"); |
| var y = Class; |
| Expect.equals(y.toString(), "Class"); |
| |
| Expect.throws(() { Class.toString(); }, (e) => e is NoSuchMethodError); |
| } |