/*

 * Copyright (c) 2000, 2012, 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.

 *

 * 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 sun.jvm.hotspot.oops;

import java.io.*;

import java.util.*;

import sun.jvm.hotspot.debugger.*;

import sun.jvm.hotspot.runtime.*;

import sun.jvm.hotspot.types.*;

import sun.jvm.hotspot.utilities.*;

public class TypeArrayKlass extends ArrayKlass {

  static {

    VM.registerVMInitializedObserver(new Observer() {

        public void update(Observable o, Object data) {

          initialize(VM.getVM().getTypeDataBase());

        }

      });

  }

  private static synchronized void initialize(TypeDataBase db) throws WrongTypeException {

    maxLength          = new CIntField(t.getCIntegerField("_max_length"), 0);

  }

  public TypeArrayKlass(Address addr) {

    super(addr);

  }

  private static CIntField  maxLength;

  public long getMaxLength()          { return  maxLength.getValue(this); }

  public static final int T_BOOLEAN = 4;

  public static final int T_CHAR    = 5;

  public static final int T_FLOAT   = 6;

  public static final int T_DOUBLE  = 7;

  public static final int T_BYTE    = 8;

  public static final int T_SHORT   = 9;

  public static final int T_INT     = 10;

  public static final int T_LONG    = 11;

  public String getTypeName() {

    switch ((int) getElementType()) {

      case T_BOOLEAN: return "[Z";

      case T_CHAR:    return "[C";

      case T_FLOAT:   return "[F";

      case T_DOUBLE:  return "[D";

      case T_BYTE:    return "[B";

      case T_SHORT:   return "[S";

      case T_INT:     return "[I";

      case T_LONG:    return "[J";

    }

    return "Unknown TypeArray";

  }

  public String getElementTypeName() {

    switch ((int) getElementType()) {

      case T_BOOLEAN: return "boolean";

      case T_CHAR:    return "char";

      case T_FLOAT:   return "float";

      case T_DOUBLE:  return "double";

      case T_BYTE:    return "byte";

      case T_SHORT:   return "short";

      case T_INT:     return "int";

      case T_LONG:    return "long";

    }

    throw new RuntimeException("should not reach here");

  }

  public void printValueOn(PrintStream tty) {

    tty.print("TypeArrayKlass for " + getTypeName());

  }

  public void iterateFields(MetadataVisitor visitor) {

    super.iterateFields(visitor);

      visitor.doCInt(maxLength, true);

    }

  public Klass arrayKlassImpl(boolean orNull, int n) {

    int dimension = (int) getDimension();

    if (Assert.ASSERTS_ENABLED) {

      Assert.that(dimension <= n, "check order of chain");

    }

    if (dimension == n)

      return this;

    ObjArrayKlass ak = (ObjArrayKlass) getHigherDimension();

    if (ak == null) {

      if (orNull) return null;

      // FIXME: would need to change in reflective system to actually

      // allocate klass

      throw new RuntimeException("Can not allocate array klasses in debugging system");

    }

    if (orNull) {

      return ak.arrayKlassOrNull(n);

    }

    return ak.arrayKlass(n);

  }

  public Klass arrayKlassImpl(boolean orNull) {

    return arrayKlassImpl(orNull, (int) (getDimension() + 1));

  }

}