Robert Nystrom
80ff59ed27
Change-Id: I2b3a52b6df08bf31c4fc0cfe0512ccf65bd0506b Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/141701 Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Erik Ernst <eernst@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com>
64 lines
1.6 KiB
Dart
64 lines
1.6 KiB
Dart
// Copyright (c) 2012, 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.
|
|
|
|
import "package:expect/expect.dart";
|
|
|
|
// Test cascades, issues 7494 (vm), 7689 (dart2js).
|
|
|
|
main() {
|
|
var a = new Element(null);
|
|
Expect.equals(1, a.path0.length);
|
|
Expect.equals(a, a.path0[0]);
|
|
|
|
// Issue 7693: e0 ? e1 : e2..f() parses as (e0 ? e1 : e2)..f().
|
|
Expect.equals(2, a.path1.length);
|
|
Expect.equals(a, a.path1[0]);
|
|
Expect.equals(a, a.path1[1]);
|
|
|
|
Expect.equals(1, a.path2.length); // NPE.
|
|
|
|
var b = new Element(a);
|
|
Expect.equals(2, b.path0.length);
|
|
Expect.equals(a, b.path0[0]);
|
|
Expect.equals(b, b.path0[1]);
|
|
|
|
Expect.equals(3, b.path1.length);
|
|
Expect.equals(a, b.path1[0]);
|
|
Expect.equals(a, b.path1[1]);
|
|
Expect.equals(b, b.path1[2]);
|
|
|
|
Expect.equals(2, b.path2.length); // NPE.
|
|
|
|
// Regression test for dartdevc comma expressions (js_ast printer did not
|
|
// generate parentheses around the comma expression).
|
|
var expectedList = [3, 2, 1];
|
|
for (var actual in expectedList.toList()..sort()) {
|
|
Expect.equals(
|
|
expectedList.removeLast(), actual, "list items should be sorted");
|
|
}
|
|
}
|
|
|
|
class Element {
|
|
final Element? parent;
|
|
|
|
Element(this.parent);
|
|
|
|
List<Element> get path0 {
|
|
if (parent == null) {
|
|
return <Element>[this];
|
|
} else {
|
|
return parent!.path0..add(this);
|
|
}
|
|
}
|
|
|
|
List<Element> get path1 {
|
|
return (parent == null) ? <Element>[this] : parent!.path1
|
|
..add(this);
|
|
}
|
|
|
|
List<Element> get path2 {
|
|
return (parent == null) ? <Element>[this] : (parent!.path2..add(this));
|
|
}
|
|
}
|