Konstantin Shcheglov
8de8a1c226
They are all errors now. Change-Id: If48d38e38e845fd5b5a950dd5514bf1cbbce03d8 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/155880 Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
22 lines
540 B
Dart
22 lines
540 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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Iterable<B> f(A a) sync* {
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yield a;
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// ^
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// [analyzer] COMPILE_TIME_ERROR.YIELD_OF_INVALID_TYPE
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// [cfe] A value of type 'A' can't be assigned to a variable of type 'B'.
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}
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void main() {
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A a = new B();
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for (var x in f(a)) {}
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a = new A();
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var iterator = f(a).iterator;
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}
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