hausner@google.com
1811a6b913
Old name Dynamic is supported, and automatically converted to lower-case dynamic when parsed. VM flag --warn_legacy_dynamic prints warnings when Dynamic is found. Review URL: https://codereview.chromium.org//11125005 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@13637 260f80e4-7a28-3924-810f-c04153c831b5
75 lines
1.9 KiB
Dart
75 lines
1.9 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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// Dart test program for constructors and initializers.
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// Test 'expression as Type' casts.
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class C {
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final int foo = 42;
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}
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class D extends C {
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final int bar = 37;
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}
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Object createC() => new C();
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Object createD() => new D();
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Object getNull() => null;
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Object createList() => <int>[2];
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Object createInt() => 87;
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Object createString() => "a string";
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main() {
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Object oc = createC();
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Object od = createD();
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Object on = getNull();
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Object ol = createList();
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Object oi = createInt();
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Object os = createString();
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Expect.equals(42, (oc as C).foo);
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Expect.equals(42, (od as C).foo);
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Expect.equals(42, (od as D).foo);
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Expect.equals(37, (od as D).bar);
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Expect.equals(37, ((od as C) as D).bar);
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(oc as D).foo; /// 01: runtime error
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(on as D).toString();
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(on as D).foo; /// 02: runtime error
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(on as C).foo; /// 03: runtime error
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oc.foo; /// 04: static type warning
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od.foo; /// 05: static type warning
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(on as Object).toString();
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(oc as Object).toString();
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(od as Object).toString();
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(on as dynamic).toString();
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(on as dynamic).foo; /// 07: runtime error
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(oc as dynamic).foo;
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(od as dynamic).foo;
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(oc as dynamic).bar; /// 08: runtime error
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(od as dynamic).bar;
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C c = oc as C;
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c = od as C;
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c = oc;
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D d = od as D;
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d = oc as D; /// 10: runtime error
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d = od;
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(ol as List)[0];
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(ol as List<int>)[0];
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(ol as dynamic)[0];
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(ol as String).length; /// 12: runtime error
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int x = (ol as List<int>)[0];
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(ol as List<int>)[0] = (oi as int);
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(os as String).length;
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(os as dynamic).length;
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(oi as String).length; /// 13: runtime error
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(os as List).length; /// 14: runtime error
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(oi as int) + 2;
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(oi as List).length; /// 15: runtime error
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}
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