asmtools/src/org/openjdk/asmtools/jasm/DataVector.java

92 lines
2.5 KiB
Java

/*
* Copyright (c) 1996, 2014, 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 org.openjdk.asmtools.jasm;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
/**
*
*/
public class DataVector<T extends Data> implements Iterable<T> {
ArrayList<T> elements;
public DataVector(int initSize) {
elements = new ArrayList<>(initSize);
}
public DataVector() {
this(12);
}
public Iterator<T> iterator() {
return elements.iterator();
}
public void add(T element) {
elements.add(element);
}
// full length of the attribute
// declared in Data
public int getLength() {
int length = 0;
// calculate overall size here rather than in add()
// because it may not be available at the time of invoking of add()
for (T element : elements) {
length += element.getLength();
}
return 2 + length; // add the length of number of elements
}
public void write(CheckedDataOutputStream out)
throws IOException {
out.writeShort(elements.size());
writeElements(out);
}
public void writeElements(CheckedDataOutputStream out)
throws IOException {
for (Data element : elements) {
element.write(out);
}
}
/* for compatibility with Vector */
public void addElement(T element) {
elements.add(element);
}
public int size() {
return elements.size();
}
public Data elementAt(int k) {
return elements.get(k);
}
}// end class DataVector