--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/agent/src/share/classes/sun/jvm/hotspot/types/basic/BasicField.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,237 @@
+/*
+ * Copyright 2000 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.types.basic;
+
+import sun.jvm.hotspot.debugger.*;
+import sun.jvm.hotspot.types.*;
+
+/** A basic implementation of Field which should be suitable for
+    cross-platform use. */
+
+public class BasicField implements Field {
+  protected BasicTypeDataBase db;
+  protected Type type;
+
+  private Type containingType;
+  private String name;
+  private long size;
+  private boolean isStatic;
+  /** Used for nonstatic fields only */
+  private long offset;
+  /** Used for static fields only */
+  private Address staticFieldAddress;
+
+  /** offsetInBytes is ignored if the field is static;
+      staticFieldAddress is used only if the field is static. */
+  public BasicField(BasicTypeDataBase db, Type containingType, String name, Type type,
+                    boolean isStatic, long offsetInBytes, Address staticFieldAddress) {
+    this.db = db;
+    this.containingType = containingType;
+    this.name = name;
+    this.type = type;
+    this.size = type.getSize();
+    this.isStatic = isStatic;
+    this.offset = offsetInBytes;
+    this.staticFieldAddress = staticFieldAddress;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public Type getType() {
+    return type;
+  }
+
+  public long getSize() {
+    return size;
+  }
+
+  public boolean isStatic() {
+    return isStatic;
+  }
+
+  public long getOffset() throws WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException("field \"" + name + "\" in class " +
+                                   containingType.getName() + " is static");
+    }
+    return offset;
+  }
+
+  public Address getStaticFieldAddress() throws WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException("field \"" + name + "\" in class " +
+                                   containingType.getName() + " is not static");
+    }
+    return staticFieldAddress;
+  }
+
+  //--------------------------------------------------------------------------------
+  // Dereferencing operations for non-static fields
+  //
+
+  public boolean   getJBoolean (Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getJBooleanAt(offset);
+  }
+  public byte      getJByte    (Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getJByteAt(offset);
+  }
+  public char      getJChar    (Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getJCharAt(offset);
+  }
+  public double    getJDouble  (Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getJDoubleAt(offset);
+  }
+  public float     getJFloat   (Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getJFloatAt(offset);
+  }
+  public int       getJInt     (Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getJIntAt(offset);
+  }
+  public long      getJLong    (Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getJLongAt(offset);
+  }
+  public short     getJShort   (Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getJShortAt(offset);
+  }
+  public long      getCInteger (Address addr, CIntegerType type)
+    throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getCIntegerAt(offset, type.getSize(), type.isUnsigned());
+  }
+  public Address   getAddress  (Address addr) throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getAddressAt(offset);
+  }
+  public OopHandle getOopHandle(Address addr)
+    throws UnmappedAddressException, UnalignedAddressException, WrongTypeException, NotInHeapException {
+    if (isStatic) {
+      throw new WrongTypeException();
+    }
+    return addr.getOopHandleAt(offset);
+  }
+
+  //--------------------------------------------------------------------------------
+  // Dereferencing operations for static fields
+  //
+
+  public boolean   getJBoolean () throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getJBooleanAt(0);
+  }
+  public byte      getJByte    () throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getJByteAt(0);
+  }
+  public char      getJChar    () throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getJCharAt(0);
+  }
+  public double    getJDouble  () throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getJDoubleAt(0);
+  }
+  public float     getJFloat   () throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getJFloatAt(0);
+  }
+  public int       getJInt     () throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getJIntAt(0);
+  }
+  public long      getJLong    () throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getJLongAt(0);
+  }
+  public short     getJShort   () throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getJShortAt(0);
+  }
+  public long      getCInteger (CIntegerType type)
+    throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getCIntegerAt(0, type.getSize(), type.isUnsigned());
+  }
+  public Address   getAddress  () throws UnmappedAddressException, UnalignedAddressException, WrongTypeException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getAddressAt(0);
+  }
+  public OopHandle getOopHandle()
+    throws UnmappedAddressException, UnalignedAddressException, WrongTypeException, NotInHeapException {
+    if (!isStatic) {
+      throw new WrongTypeException();
+    }
+    return staticFieldAddress.getOopHandleAt(0);
+  }
+}