Robert Nystrom
3455133d98
Change-Id: I0765a1e0fb19f38d7ad1c8655ba444f2f46fbf6a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/128301 Reviewed-by: Paul Berry <paulberry@google.com> Reviewed-by: Siva Annamalai <asiva@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com>
20 lines
739 B
Dart
20 lines
739 B
Dart
// Copyright (c) 2019, 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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// SharedOptions=--enable-experiment=non-nullable
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// Test that it is an error to do what was once allowed as an "implicit
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// downcast."
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main() {
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num asNum = 1;
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Object asObject = 1;
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dynamic asDynamic = 1;
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int asInt1 = asNum; //# 01: compile-time error
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double asDouble1 = asNum; //# 02: compile-time error
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int asInt2 = asObject; //# 03: compile-time error
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double asDouble2 = asObject; //# 04: compile-time error
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String asString1 = asObject; //# 05: compile-time error
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int asInt3 = asDynamic; //# 06: ok
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}
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