blob: 3968b78404a47e931b90b190569e6325b8dc85d7 [file] [log] [blame]
// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
/// @assertion With unsound null checking, evaluation proceeds as follows:
/// First e is implicitly cast to bool if required (using
/// LEGACY_SUBTYPE(e.runtimeType, bool))
/// This cast may fail, and if so it is a TypeError.
/// If the cast does not fail, then the result may still be null, and so the
/// result must be checked against null.
/// If the null check fails, it is an AssertionError, otherwise evaluation of the
/// enclosing conditional proceeds as usual.
/// @description Checks that it is a TypeError if runtime check fails
/// @author
// Requirements=nnbd-weak
import "../../../Utils/expect.dart";
main() {
dynamic d = null;
Expect.throws(() {
bool b = d;
if (b) {}
}, (e) => e is AssertionError);