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TEST=ci Bug: Contributes to https://github.com/dart-lang/sdk/issues/49529 Change-Id: Ic129ef2d89f625d9ec6a7a1c301cffddd60b2ff7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/258920 Reviewed-by: Lasse Nielsen <lrn@google.com> Commit-Queue: Michael Thomsen <mit@google.com> Reviewed-by: Slava Egorov <vegorov@google.com>
61 lines
1.3 KiB
Dart
61 lines
1.3 KiB
Dart
// Copyright (c) 2014, 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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// @dart = 2.7
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import "package:expect/expect.dart";
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import 'dart:math';
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// Test that String interpolation works in some optimized cases.
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bool get inscrutableFalse => new Random().nextDouble() > 2;
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returnsNullOrString(x) {
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if (inscrutableFalse) return 'hi';
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if (inscrutableFalse) return null;
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return x;
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}
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returnsNullOrInt(x) {
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if (inscrutableFalse) return 123;
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if (inscrutableFalse) return null;
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return x;
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}
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spoil(a) {
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a[3] = 123;
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a[4] = 'ddd';
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}
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void testString() {
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var a = new List<dynamic>.filled(
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100, null); // 'null' values in here are JavaScript undefined.
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spoil(a);
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var s = returnsNullOrString('hi');
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var x = a[2];
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if (x == null) {
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s = returnsNullOrString(x);
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}
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Expect.equals('s: null', 's: $s');
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}
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void testInt() {
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var a = new List<dynamic>.filled(
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100, null); // 'null' values in here are JavaScript undefined.
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spoil(a);
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var s = returnsNullOrInt(123);
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var x = a[2];
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if (x == null) {
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s = returnsNullOrInt(x);
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}
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Expect.equals('s: null', 's: $s');
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}
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void main() {
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testInt();
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testString();
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}
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