Johnni Winther
e9ca413263
Closes #41349 Closes #41495 Change-Id: I1893502592af1615184b5dd294e1835b51959a07 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/144761 Reviewed-by: Dmitry Stefantsov <dmitryas@google.com> Commit-Queue: Johnni Winther <johnniwinther@google.com>
42 lines
981 B
Dart
42 lines
981 B
Dart
// Copyright (c) 2020, 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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foo() => 23;
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}
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extension B on A? {
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foo() => 42;
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bar() => 87;
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}
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extension C on A {
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bar() => 123;
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}
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extension D on int Function()? {
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int call() => 76;
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}
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main() {
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testA(new A());
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testFunction(() => 53);
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}
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testA(A? a) {
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expect(23, a?.foo()); // A.foo instead of B.foo.
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expect(42, a.foo()); // B.foo instead of nullable access to A.foo.
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expect(123, a?.bar()); // C.bar instead of B.bar.
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expect(87, a.bar()); // B.bar instead of nullable access to C.bar.
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}
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testFunction(int Function()? f) {
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expect(53, f?.call()); // Function.call instead of D.call.
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expect(76, f.call()); // D.call instead of nullable access to Function.call.
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}
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expect(expected, actual) {
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if (expected != actual) throw 'Expected $expected, actual $actual';
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}
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