content: /*
   *  This file is part of AndroidIDE.
   *
   *  AndroidIDE is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  AndroidIDE 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 for more details.
   *
   *  You should have received a copy of the GNU General Public License
   *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
   */
  
  /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  package jaxp.sun.org.apache.bcel.internal.classfile;
  
  /* ====================================================================
   * The Apache Software License, Version 1.1
   *
   * Copyright (c) 2001 The Apache Software Foundation.  All rights
   * reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. The end-user documentation included with the redistribution,
   *    if any, must include the following acknowledgment:
   *       "This product includes software developed by the
   *        Apache Software Foundation (http://www.apache.org/)."
   *    Alternately, this acknowledgment may appear in the software itself,
   *    if and wherever such third-party acknowledgments normally appear.
   *
   * 4. The names "Apache" and "Apache Software Foundation" and
   *    "Apache BCEL" must not be used to endorse or promote products
   *    derived from this software without prior written permission. For
   *    written permission, please contact apache@apache.org.
   *
   * 5. Products derived from this software may not be called "Apache",
   *    "Apache BCEL", nor may "Apache" appear in their name, without
   *    prior written permission of the Apache Software Foundation.
   *
   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
   * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
   * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   * ====================================================================
   *
   * This software consists of voluntary contributions made by many
   * individuals on behalf of the Apache Software Foundation.  For more
   * information on the Apache Software Foundation, please see
   * <http://www.apache.org/>.
   */
  
  import  java.io.*;
  
  /**
   * This class represents a stack map entry recording the types of
   * local variables and the the of stack items at a given byte code offset.
   * See CLDC specification 5.3.1.2
   *
   * @author  <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
   * @see     StackMap
   * @see     StackMapType
   */
  public final class StackMapEntry implements Cloneable {
    private int            byte_code_offset;
    private int            number_of_locals;
    private StackMapType[] types_of_locals;
    private int            number_of_stack_items;
    private StackMapType[] types_of_stack_items;
    private ConstantPool   constant_pool;
  
    /**
     * Construct object from file stream.
     * @param file Input stream
     * @throws IOException
     */
    StackMapEntry(DataInputStream file, ConstantPool constant_pool) throws IOException
    {
      this(file.readShort(), file.readShort(), null, -1, null, constant_pool);
  
      types_of_locals = new StackMapType[number_of_locals];
      for(int i=0; i < number_of_locals; i++)
        types_of_locals[i] = new StackMapType(file, constant_pool);
  
      number_of_stack_items = file.readShort();
      types_of_stack_items = new StackMapType[number_of_stack_items];
      for(int i=0; i < number_of_stack_items; i++)
        types_of_stack_items[i] = new StackMapType(file, constant_pool);
    }
  
    public StackMapEntry(int byte_code_offset, int number_of_locals,
                         StackMapType[] types_of_locals,
                         int number_of_stack_items,
                         StackMapType[] types_of_stack_items,
                         ConstantPool constant_pool) {
      this.byte_code_offset = byte_code_offset;
      this.number_of_locals = number_of_locals;
      this.types_of_locals = types_of_locals;
      this.number_of_stack_items = number_of_stack_items;
      this.types_of_stack_items = types_of_stack_items;
      this.constant_pool = constant_pool;
    }
  
    /**
     * Dump stack map entry
     *
     * @param file Output file stream
     * @throws IOException
     */
    public final void dump(DataOutputStream file) throws IOException
    {
      file.writeShort(byte_code_offset);
  
      file.writeShort(number_of_locals);
      for(int i=0; i < number_of_locals; i++)
        types_of_locals[i].dump(file);
  
      file.writeShort(number_of_stack_items);
      for(int i=0; i < number_of_stack_items; i++)
        types_of_stack_items[i].dump(file);
    }
  
    /**
     * @return String representation.
     */
    public final String toString() {
      StringBuffer buf = new StringBuffer("(offset=" + byte_code_offset);
  
      if(number_of_locals > 0) {
        buf.append(", locals={");
  
        for(int i=0; i < number_of_locals; i++) {
          buf.append(types_of_locals[i]);
          if(i < number_of_locals - 1)
            buf.append(", ");
        }
  
        buf.append("}");
      }
  
      if(number_of_stack_items > 0) {
        buf.append(", stack items={");
  
        for(int i=0; i < number_of_stack_items; i++) {
          buf.append(types_of_stack_items[i]);
          if(i < number_of_stack_items - 1)
            buf.append(", ");
        }
  
        buf.append("}");
      }
  
      buf.append(")");
  
      return buf.toString();
    }
  
  
    public void           setByteCodeOffset(int b)               { byte_code_offset = b; }
    public int            getByteCodeOffset()                    { return byte_code_offset; }
    public void           setNumberOfLocals(int n)               { number_of_locals = n; }
    public int            getNumberOfLocals()                    { return number_of_locals; }
    public void           setTypesOfLocals(StackMapType[] t)     { types_of_locals = t; }
    public StackMapType[] getTypesOfLocals()                     { return types_of_locals; }
    public void           setNumberOfStackItems(int n)           { number_of_stack_items = n; }
    public int            getNumberOfStackItems()                { return number_of_stack_items; }
    public void           setTypesOfStackItems(StackMapType[] t) { types_of_stack_items = t; }
    public StackMapType[] getTypesOfStackItems()                 { return types_of_stack_items; }
  
    /**
     * @return deep copy of this object
     */
    public StackMapEntry copy() {
      try {
        return (StackMapEntry)clone();
      } catch(CloneNotSupportedException e) {}
  
      return null;
    }
  
    /**
     * Called by objects that are traversing the nodes of the tree implicitely
     * defined by the contents of a Java class. I.e., the hierarchy of methods,
     * fields, attributes, etc. spawns a tree of objects.
     *
     * @param v Visitor object
     */
    public void accept(Visitor v) {
      v.visitStackMapEntry(this);
    }
  
    /**
     * @return Constant pool used by this object.
     */
    public final ConstantPool getConstantPool() { return constant_pool; }
  
    /**
     * @param constant_pool Constant pool to be used for this object.
     */
    public final void setConstantPool(ConstantPool constant_pool) {
      this.constant_pool = constant_pool;
    }
  }
  