Robert Nystrom
739852d99d
Change-Id: I3356296e72dfa07b0ac994da0ce96f766b182e80 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/137722 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Leaf Petersen <leafp@google.com>
30 lines
929 B
Dart
30 lines
929 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 C {
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void Function() call = () {};
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}
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main() {
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C c = new C();
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dynamic d = c;
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// The presence of a field named `call` does not permit the class `C` to be
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// implicitly called.
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c(); //# 01: compile-time error
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// Nor does it permit an implicit tear-off of `call`.
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void Function() f = c; //# 02: compile-time error
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// Nor does it permit a dynamic invocation of `call`.
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Expect.throws(() => d()); //# 03: ok
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// However, all these things are possible if `call` is mentioned explicitly.
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c.call(); //# 04: ok
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void Function() f = c.call; //# 05: ok
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d.call(); //# 06: ok
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(d.call)(); //# 07: ok
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}
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