author | erikj |
Tue, 12 Sep 2017 19:03:39 +0200 | |
changeset 47216 | 71c04702a3d5 |
parent 25865 | nashorn/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/runtime/arrays/ReverseJSObjectIterator.java@d38d876f1654 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.nashorn.internal.runtime.arrays; |
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19889
63af9358d0dc
8024615: Refactor ScriptObjectMirror and JSObject to support external JSObject implementations
sundar
parents:
18334
diff
changeset
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import jdk.nashorn.api.scripting.JSObject; |
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import jdk.nashorn.internal.runtime.JSType; |
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/** |
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* Reverse iterator over a ScriptObjectMirror |
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*/ |
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19889
63af9358d0dc
8024615: Refactor ScriptObjectMirror and JSObject to support external JSObject implementations
sundar
parents:
18334
diff
changeset
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final class ReverseJSObjectIterator extends JSObjectIterator { |
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19889
63af9358d0dc
8024615: Refactor ScriptObjectMirror and JSObject to support external JSObject implementations
sundar
parents:
18334
diff
changeset
|
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ReverseJSObjectIterator(final JSObject obj, final boolean includeUndefined) { |
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super(obj, includeUndefined); |
19889
63af9358d0dc
8024615: Refactor ScriptObjectMirror and JSObject to support external JSObject implementations
sundar
parents:
18334
diff
changeset
|
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this.index = JSType.toUint32(obj.hasMember("length")? obj.getMember("length") : 0) - 1; |
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} |
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@Override |
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public boolean isReverse() { |
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return true; |
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} |
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@Override |
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protected boolean indexInArray() { |
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return index >= 0; |
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} |
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@Override |
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protected long bumpIndex() { |
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return index--; |
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} |
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} |
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