--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.chromium.debug.core/src/org/chromium/debug/core/model/Value.java	Wed Dec 23 17:13:18 2009 -0800
@@ -0,0 +1,86 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.debug.core.model;
+
+import org.chromium.debug.core.ChromiumDebugPlugin;
+import org.chromium.debug.core.util.JsValueStringifier;
+import org.chromium.sdk.JsArray;
+import org.chromium.sdk.JsValue;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.debug.core.DebugException;
+import org.eclipse.debug.core.model.IValue;
+import org.eclipse.debug.core.model.IVariable;
+
+/**
+ * A generic (non-array) implementation of IValue using a JsValue instance.
+ */
+public class Value extends DebugElementImpl implements IValue {
+
+  private static final IVariable[] EMPTY_VARIABLES = new IVariable[0];
+
+  private final JsValue value;
+
+  private IVariable[] variables;
+
+  public static Value create(IChromiumDebugTarget debugTarget, JsValue value) {
+    if (JsValue.Type.TYPE_ARRAY == value.getType()) {
+      return new ArrayValue(debugTarget, (JsArray) value);
+    }
+    return new Value(debugTarget, value);
+  }
+
+  Value(IChromiumDebugTarget debugTarget, JsValue value) {
+    super(debugTarget);
+    this.value = value;
+  }
+
+  public String getReferenceTypeName() throws DebugException {
+    return value.getType().toString();
+  }
+
+  public String getValueString() throws DebugException {
+    String valueText = JsValueStringifier.toVisibleString(value);
+    if (value.asObject() != null) {
+      String ref = value.asObject().getRefId();
+      if (ref != null) {
+        valueText = valueText + "  (id=" + ref + ")";
+      }
+    }
+    return valueText;
+  }
+
+  public IVariable[] getVariables() throws DebugException {
+    try {
+      if (variables == null) {
+        if (value.asObject() != null) {
+          variables = StackFrame.wrapVariables(getDebugTarget(), value.asObject().getProperties(),
+              value.asObject().getInternalProperties());
+        } else {
+          variables = EMPTY_VARIABLES;
+        }
+      }
+      return variables;
+    } catch (RuntimeException e) {
+      // We shouldn't throw RuntimeException from here, because calling
+      // ElementContentProvider#update will forget to call update.done().
+      throw new DebugException(new Status(IStatus.ERROR, ChromiumDebugPlugin.PLUGIN_ID,
+          "Failed to read variables", e)); //$NON-NLS-1$
+    }
+  }
+
+  public boolean hasVariables() throws DebugException {
+    return value.asObject() != null;
+  }
+
+  public boolean isAllocated() throws DebugException {
+    return false;
+  }
+
+  public JsValue getJsValue() {
+    return value;
+  }
+
+}