Jenny Messerly
bed5debbeb
Fixes #32156 Fixes #32157 Fixes #32426 This also fixes `implements Function` so it has no effect in Dart 2 (it is ignored for the purposes of subtyping.) Change-Id: Ibec9c77cd516b8b97fef68a579998598d0acf8c6 Reviewed-on: https://dart-review.googlesource.com/45141 Commit-Queue: Jenny Messerly <jmesserly@google.com> Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Vijay Menon <vsm@google.com>
33 lines
911 B
Dart
33 lines
911 B
Dart
// Copyright (c) 2018, 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 to test arithmetic operations.
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import "package:expect/expect.dart";
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class C1 {
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int call(int i) => 2 * i;
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}
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class C2 implements Function {
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int call(int i) => 2 * i;
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}
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main() {
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C1 c1 = new C1();
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// Implicitly invokes c1.call(1)
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Expect.equals(c1(1), 2); //# 01: ok
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dynamic d1 = c1;
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// Implicitly invokes d1.call(1)
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Expect.equals(d1(1), 2); //# 02: ok
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C2 c2 = new C2();
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// Implicitly invokes c2.call(1)
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Expect.equals(c2(1), 2); //# 03: ok
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dynamic d2 = c2;
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// Implicitly invokes d2.call(1)
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Expect.equals(d2(1), 2); //# 04: ok
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// Cannot invoke with the wrong signature.
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c2(); //# 05: compile-time error
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c2(3, 4); //# 05: compile-time error
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}
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