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