1 files changed, 81 insertions, 0 deletions
diff --git a/src/jdk/nashorn/internal/runtime/arrays/ScriptObjectMirrorIterator.java b/src/jdk/nashorn/internal/runtime/arrays/ScriptObjectMirrorIterator.java
new file mode 100644
index 00000000..a7bef158
--- /dev/null
+++ b/src/jdk/nashorn/internal/runtime/arrays/ScriptObjectMirrorIterator.java
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.nashorn.internal.runtime.arrays;
+
+import java.util.NoSuchElementException;
+import jdk.nashorn.api.scripting.ScriptObjectMirror;
+import jdk.nashorn.internal.runtime.JSType;
+
+/**
+ * Iterator over a ScriptObjectMirror
+ */
+class ScriptObjectMirrorIterator extends ArrayLikeIterator<Object> {
+
+    protected final ScriptObjectMirror obj;
+    private final long length;
+
+    ScriptObjectMirrorIterator(final ScriptObjectMirror obj, final boolean includeUndefined) {
+        super(includeUndefined);
+        this.obj    = obj;
+        this.length = JSType.toUint32(obj.containsKey("length")? obj.getMember("length") : 0);
+        this.index  = 0;
+    }
+
+    protected boolean indexInArray() {
+        return index < length;
+    }
+
+    @Override
+    public long getLength() {
+        return length;
+    }
+
+    @Override
+    public boolean hasNext() {
+        if (length == 0L) {
+            return false; //return empty string if toUint32(length) == 0
+        }
+
+        while (indexInArray()) {
+            if (obj.containsKey(index) || includeUndefined) {
+                break;
+            }
+            bumpIndex();
+        }
+
+        return indexInArray();
+    }
+
+    @Override
+    public Object next() {
+        if (indexInArray()) {
+            return obj.get(bumpIndex());
+        }
+
+        throw new NoSuchElementException();
+    }
+}
+