--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/debugger/cdbg/basic/BasicEnumType.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2001 Sun Microsystems, Inc.  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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+package sun.jvm.hotspot.debugger.cdbg.basic;
+
+import java.util.*;
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.debugger.cdbg.*;
+import sun.jvm.hotspot.utilities.Assert;
+
+public class BasicEnumType extends BasicIntType implements EnumType {
+  // Integer type or lazy type
+  private Type underlyingType;
+
+  private static class Enum {
+    String name;
+    long   value;
+    Enum(String name, long value) {
+      this.name = name;
+      this.value = value;
+    }
+
+    String getName()  { return name; }
+    long   getValue() { return value; }
+  }
+  private List/*<Enum>*/ enums;
+
+  /** Underlying type of enum must be an integer type (or as yet
+      unresolved) */
+
+  public BasicEnumType(String name, Type underlyingType) {
+    this(name, underlyingType, 0);
+  }
+
+  private BasicEnumType(String name, Type underlyingType, int cvAttributes) {
+    super(name, 0, false, cvAttributes);
+    this.underlyingType = underlyingType;
+  }
+
+  public EnumType asEnum()    { return this; }
+
+  public int     getSize() { return underlyingType.getSize(); }
+  public boolean isUnsigned() {
+    if (underlyingType.isInt()) {
+      return ((IntType) underlyingType).isUnsigned();
+    }
+    return false;
+  }
+
+  public void addEnum(String name, long val) {
+    if (enums == null) {
+      enums = new ArrayList();
+    }
+    enums.add(new Enum(name, val));
+  }
+
+  public int    getNumEnumerates()  { return enums.size(); }
+  public String getEnumName(int i)  { return ((Enum) enums.get(i)).getName();  }
+  public long   getEnumValue(int i) { return ((Enum) enums.get(i)).getValue(); }
+
+  public String enumNameForValue(long val) {
+    if (enums == null) {
+      return null;
+    }
+
+    for (Iterator iter = enums.iterator(); iter.hasNext(); ) {
+      Enum e = (Enum) iter.next();
+      if (e.getValue() == val) {
+        return e.getName();
+      }
+    }
+
+    return null;
+  }
+
+  Type resolveTypes(BasicCDebugInfoDataBase db, ResolveListener listener) {
+    super.resolveTypes(db, listener);
+    underlyingType = db.resolveType(this, underlyingType, listener, "resolving enum type");
+    if (Assert.ASSERTS_ENABLED) {
+      BasicType b = (BasicType) underlyingType;
+      Assert.that(b.isLazy() || b.isInt(),
+                  "Underlying type of enum must be integer type (or unresolved due to error)");
+    }
+    return this;
+  }
+
+  public void iterateObject(Address a, ObjectVisitor v, FieldIdentifier f) {
+    long val = a.getCIntegerAt(0, getSize(), isUnsigned());
+    v.doEnum(f, val, enumNameForValue(val));
+  }
+
+  protected Type createCVVariant(int cvAttributes) {
+    BasicEnumType t = new BasicEnumType(getName(), underlyingType, cvAttributes);
+    t.enums = enums;
+    return t;
+  }
+
+  public void visit(TypeVisitor v) {
+    v.doEnumType(this);
+  }
+}