Jake Macdonald
3b06df241f
This is less than half of them, will send some other chunks later. Bug:51557 Change-Id: I4e80812a689fde99e23c34b6405aaf57cd431ce8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/289261 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Jake Macdonald <jakemac@google.com>
45 lines
1.1 KiB
Dart
45 lines
1.1 KiB
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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// Implements Function which is not allowed in Dart 3.
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// @dart=2.19
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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);
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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);
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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);
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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);
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// Cannot invoke with the wrong signature.
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c2();
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// ^
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// [analyzer] COMPILE_TIME_ERROR.NOT_ENOUGH_POSITIONAL_ARGUMENTS
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//^^
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// [cfe] Too few positional arguments: 1 required, 0 given.
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c2(3, 4);
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// ^
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// [analyzer] COMPILE_TIME_ERROR.EXTRA_POSITIONAL_ARGUMENTS
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//^^^^^^
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// [cfe] Too many positional arguments: 1 allowed, but 2 found.
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}
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