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// Copyright (c) 2014, 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.
// @dart = 2.7
import "package:expect/expect.dart";
import 'dart:math';
// Test that String interpolation works in some optimized cases.
bool get inscrutableFalse => new Random().nextDouble() > 2;
returnsNullOrString(x) {
if (inscrutableFalse) return 'hi';
if (inscrutableFalse) return null;
return x;
}
returnsNullOrInt(x) {
if (inscrutableFalse) return 123;
if (inscrutableFalse) return null;
return x;
}
spoil(a) {
a[3] = 123;
a[4] = 'ddd';
}
void testString() {
var a = new List(100); // 'null' values in here are JavaScript undefined.
spoil(a);
var s = returnsNullOrString('hi');
var x = a[2];
if (x == null) {
s = returnsNullOrString(x);
}
Expect.equals('s: null', 's: $s');
}
void testInt() {
var a = new List(100); // 'null' values in here are JavaScript undefined.
spoil(a);
var s = returnsNullOrInt(123);
var x = a[2];
if (x == null) {
s = returnsNullOrInt(x);
}
Expect.equals('s: null', 's: $s');
}
void main() {
testInt();
testString();
}