kmillikin@google.com
309fcb1ba3
Make use of the attractive and powerful way that the LoadLocal expression is really a pair of an arbitrary statement and a local variable load. BUG=dart:7494 Review URL: https://codereview.chromium.org//11745028 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@16684 260f80e4-7a28-3924-810f-c04153c831b5
54 lines
1.3 KiB
Dart
54 lines
1.3 KiB
Dart
// Copyright (c) 2012, 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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// Test cascades, issues 7494 (vm), 7689 (dart2js).
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main() {
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var a = new Element(null);
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Expect.equals(1, a.path0.length);
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Expect.equals(a, a.path0[0]);
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// Issue 7693: e0 ? e1 : e2..f() parses as (e0 ? e1 : e2)..f().
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Expect.equals(2, a.path1.length);
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Expect.equals(a, a.path1[0]);
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Expect.equals(a, a.path1[1]);
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Expect.equals(1, a.path2.length); // NPE.
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var b = new Element(a);
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Expect.equals(2, b.path0.length);
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Expect.equals(a, b.path0[0]);
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Expect.equals(b, b.path0[1]);
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Expect.equals(3, b.path1.length);
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Expect.equals(a, b.path1[0]);
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Expect.equals(a, b.path1[1]);
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Expect.equals(b, b.path1[2]);
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Expect.equals(2, b.path2.length); // NPE.
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}
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class Element {
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final Element parent;
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Element(this.parent);
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List<Element> get path0 {
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if (parent == null) {
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return <Element>[this];
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} else {
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return parent.path0..add(this);
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}
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}
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List<Element> get path1 {
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return (parent == null) ? <Element>[this] : parent.path1..add(this);
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}
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List<Element> get path2 {
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return (parent == null) ? <Element>[this] : (parent.path2..add(this));
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}
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}
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