Peter von der Ahé
893b4d4fe9
Also rename void-methods.dart to void_methods.dart. R=johnniwinther@google.com Review-Url: https://codereview.chromium.org/3006963002 .
49 lines
717 B
Dart
49 lines
717 B
Dart
// Copyright (c) 2017, 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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class A {
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var field;
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}
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class B {
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var field;
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}
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class C {
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operator ==(x) => false;
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}
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class X implements A, B {
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var field;
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}
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void useAsA(A object) {
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var _ = object.field;
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}
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void useAsB(B object) {
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var _ = object.field;
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escape(object);
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}
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void escape(x) {
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x ??= "";
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x ??= 45;
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if (x is! int && x is! String) {
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x.field = 45;
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}
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}
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main() {
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// escape("");
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// escape(45);
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var object = new X();
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useAsA(new A());
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useAsA(object);
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useAsB(new B());
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useAsB(object);
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}
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