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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>
51 lines
1,012 B
Dart
51 lines
1,012 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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/*@testedFeatures=inference*/
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library test;
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class A {
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late B b;
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}
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class B {
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C? get c => null;
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void set c(C? value) {}
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}
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class C {}
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class D extends C {}
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class E extends C {}
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// Inferred type: A
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var a = new A();
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// Inferred type: C?
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var x = a.b.c;
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// Inferred type: C
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var y = a.b.c ??= new D();
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test() {
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// Verify the types of x and y by trying to assign to them.
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x = new C();
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x = new E();
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x = new B();
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// ^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
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// ^
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// [cfe] A value of type 'B' can't be assigned to a variable of type 'C?'.
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y = new C();
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y = new E();
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y = new B();
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// ^^^^^^^
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// [analyzer] COMPILE_TIME_ERROR.INVALID_ASSIGNMENT
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// ^
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// [cfe] A value of type 'B' can't be assigned to a variable of type 'C'.
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}
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main() {}
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