lubomir@281: /*
lubomir@281:  * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
lubomir@281:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
lubomir@281:  *
lubomir@281:  * This code is free software; you can redistribute it and/or modify it
lubomir@281:  * under the terms of the GNU General Public License version 2 only, as
lubomir@281:  * published by the Free Software Foundation.  Oracle designates this
lubomir@281:  * particular file as subject to the "Classpath" exception as provided
lubomir@281:  * by Oracle in the LICENSE file that accompanied this code.
lubomir@281:  *
lubomir@281:  * This code is distributed in the hope that it will be useful, but WITHOUT
lubomir@281:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
lubomir@281:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
lubomir@281:  * version 2 for more details (a copy is included in the LICENSE file that
lubomir@281:  * accompanied this code).
lubomir@281:  *
lubomir@281:  * You should have received a copy of the GNU General Public License version
lubomir@281:  * 2 along with this work; if not, write to the Free Software Foundation,
lubomir@281:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
lubomir@281:  *
lubomir@281:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
lubomir@281:  * or visit www.oracle.com if you need additional information or have any
lubomir@281:  * questions.
lubomir@281:  */
lubomir@281: 
lubomir@281: package org.apidesign.javap;
lubomir@281: 
lubomir@281: public class TypeArray {
lubomir@281:     private static final int CAPACITY_INCREMENT = 16;
lubomir@281: 
lubomir@281:     private int[] types;
lubomir@281:     private int size;
lubomir@281: 
lubomir@281:     public void add(final int newType) {
lubomir@281:         ensureCapacity(size + 1);
lubomir@281:         types[size++] = newType;
lubomir@281:     }
lubomir@281: 
lubomir@281:     public void addAll(final int[] newTypes) {
lubomir@281:         if (newTypes.length > 0) {
lubomir@281:             ensureCapacity(size + newTypes.length);
lubomir@281:             arraycopy(newTypes, 0, types, size, newTypes.length);
lubomir@281:             size += newTypes.length;
lubomir@281:         }
lubomir@281:     }
lubomir@281: 
lubomir@281:     public void setAll(final int[] newTypes) {
lubomir@281:         if (newTypes.length > 0) {
lubomir@281:             ensureCapacity(newTypes.length);
lubomir@281:             arraycopy(newTypes, 0, types, 0, newTypes.length);
lubomir@281:             size = newTypes.length;
lubomir@281:         } else {
lubomir@281:             clear();
lubomir@281:         }
lubomir@281:     }
lubomir@281: 
lubomir@281:     public void setSize(final int newSize) {
lubomir@281:         ensureCapacity(newSize);
lubomir@281:         size = newSize;
lubomir@281:     }
lubomir@281: 
lubomir@281:     public void clear() {
lubomir@281:         size = 0;
lubomir@281:     }
lubomir@281: 
lubomir@281:     public int getSize() {
lubomir@281:         return size;
lubomir@281:     }
lubomir@281: 
lubomir@281:     public int get(final int index) {
lubomir@281:         return types[index];
lubomir@281:     }
lubomir@281: 
lubomir@281:     private void ensureCapacity(final int minCapacity) {
lubomir@281:         if ((minCapacity == 0)
lubomir@281:                 || (types != null) && (minCapacity <= types.length)) {
lubomir@281:             return;
lubomir@281:         }
lubomir@281: 
lubomir@281:         final int newCapacity =
lubomir@281:                 ((minCapacity + CAPACITY_INCREMENT - 1) / CAPACITY_INCREMENT)
lubomir@281:                     * CAPACITY_INCREMENT;
lubomir@281:         final int[] newTypes = new int[newCapacity];
lubomir@281: 
lubomir@281:         if (size > 0) {
lubomir@281:             arraycopy(types, 0, newTypes, 0, size);
lubomir@281:         }
lubomir@281: 
lubomir@281:         types = newTypes;
lubomir@281:     }
lubomir@281: 
lubomir@281:     // no System.arraycopy
lubomir@281:     private void arraycopy(final int[] src, final int srcPos,
lubomir@281:                            final int[] dest, final int destPos,
lubomir@281:                            final int length) {
lubomir@281:         for (int i = 0; i < length; ++i) {
lubomir@281:             dest[destPos + i] = src[srcPos + i];
lubomir@281:         }
lubomir@281:     }
lubomir@281: }