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>
31 lines
854 B
Dart
31 lines
854 B
Dart
// Copyright (c) 2013, 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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import "package:expect/expect.dart";
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class F {
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final int value;
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F(this.value);
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call() => value;
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noSuchMethod(Invocation i) {
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if (i.memberName == #call && i.isMethod) {
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return i.positionalArguments[0];
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}
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return super.noSuchMethod(i);
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}
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}
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main() {
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F f = new F(42);
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// Tears off f.call, fails with nSM (wrong number of arguments).
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Expect.throwsNoSuchMethodError(() => Function.apply(f, ['a', 'b', 'c', 'd']));
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dynamic d = f;
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var result = d('a', 'b', 'c', 'd'); // calls F.noSuchMethod
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Expect.equals('a', result);
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// Tears off f.call, call succeeds
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Expect.equals(42, Function.apply(f, []));
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}
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