- /*
- * Copyright 2002-2004 The Apache Software Foundation.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- /*
- * $Id$
- */
-
- package com.sun.org.apache.xpath.internal.compiler;
-
- /**
- *
- * Like IntVector, but used only for the OpMap array. Length of array
- * is kept in the m_lengthPos position of the array. Only the required methods
- * are in included here.
- * @xsl.usage internal
- */
- public class OpMapVector {
-
- /** Size of blocks to allocate */
- protected int m_blocksize;
-
- /** Array of ints */
- protected int m_map[]; // IntStack is trying to see this directly
-
- /** Position where size of array is kept */
- protected int m_lengthPos = 0;
-
- /** Size of array */
- protected int m_mapSize;
-
- /**
- * Construct a OpMapVector, using the given block size.
- *
- * @param blocksize Size of block to allocate
- */
- public OpMapVector(int blocksize, int increaseSize, int lengthPos)
- {
-
- m_blocksize = increaseSize;
- m_mapSize = blocksize;
- m_lengthPos = lengthPos;
- m_map = new int[blocksize];
- }
-
- /**
- * Get the nth element.
- *
- * @param i index of object to get
- *
- * @return object at given index
- */
- public final int elementAt(int i)
- {
- return m_map[i];
- }
-
- /**
- * Sets the component at the specified index of this vector to be the
- * specified object. The previous component at that position is discarded.
- *
- * The index must be a value greater than or equal to 0 and less
- * than the current size of the vector.
- *
- * @param node object to set
- * @param index Index of where to set the object
- */
- public final void setElementAt(int value, int index)
- {
- if (index >= m_mapSize)
- {
- int oldSize = m_mapSize;
-
- m_mapSize += m_blocksize;
-
- int newMap[] = new int[m_mapSize];
-
- System.arraycopy(m_map, 0, newMap, 0, oldSize);
-
- m_map = newMap;
- }
-
- m_map[index] = value;
- }
-
-
- /*
- * Reset the array to the supplied size. No checking is done.
- *
- * @param size The size to trim to.
- */
- public final void setToSize(int size) {
-
- int newMap[] = new int[size];
-
- System.arraycopy(m_map, 0, newMap, 0, m_map[m_lengthPos]);
-
- m_mapSize = size;
- m_map = newMap;
-
- }
-
- }