Robert Nystrom
7134a451f3
A lot of files in this one, but nothing interesting in any of the tests. Change-Id: I69c705bfd2c2b2f9711b393e4ac78c357336e1a7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/407660 Commit-Queue: Lasse Nielsen <lrn@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
31 lines
850 B
Dart
31 lines
850 B
Dart
// Copyright (c) 2017, 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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class B extends A {
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Object operator +(Object x) => x;
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}
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void main() {
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B b = B();
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b += 2;
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//^
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// [cfe] A value of type 'Object' can't be assigned to a variable of type 'B'.
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// ^
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// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
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++b;
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// [error column 3, length 3]
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// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
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// [cfe] A value of type 'Object' can't be assigned to a variable of type 'B'.
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b++;
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// [error column 3, length 3]
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// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
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// [error column 4]
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// [cfe] A value of type 'Object' can't be assigned to a variable of type 'B'.
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}
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