dart-sdk/tests/language/vm/plus_null_37719_test.dart
Robert Nystrom 2034061433 Migrate language_2/vm to NNBD.
Change-Id: I313a57ed7c7ea2ada75065f55a7367376f6bdae5
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152183
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Srujan Gaddam <srujzs@google.com>
2020-06-25 20:39:23 +00:00

58 lines
1 KiB
Dart
Executable file

// Copyright (c) 2019, 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.
// VMOptions=--deterministic
import "package:expect/expect.dart";
@pragma("vm:never-inline")
foo(List<int?> x) => x[1]! + x[0]!;
@pragma("vm:never-inline")
bar(List<int?> x) => 1 + x[0]!;
@pragma("vm:never-inline")
baz(List<int?> x) => x[0]! + 2;
main() {
var x = new List<int?>.filled(2, null);
// Only first is null.
x[0] = null;
x[1] = 123;
try {
foo(x);
} on TypeError catch (e) {
;
}
try {
bar(x);
} on TypeError catch (e) {
;
}
try {
baz(x);
} on TypeError catch (e) {
;
}
// Only second is null.
x[0] = 456;
x[1] = null;
try {
foo(x);
} on TypeError catch (e) {
;
}
Expect.equals(457, bar(x));
Expect.equals(458, baz(x));
// Neither is null.
x[0] = 789;
x[1] = -1;
Expect.equals(788, foo(x));
Expect.equals(790, bar(x));
Expect.equals(791, baz(x));
}