asmtools/src/org/openjdk/asmtools/jdis/AttrData.java

66 lines
1.9 KiB
Java

/*
* Copyright (c) 1996, 2020, 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.jdis;
import org.openjdk.asmtools.jasm.Tables;
import java.io.DataInputStream;
import java.io.IOException;
import static java.lang.String.format;
/**
*
*/
public class AttrData {
int name_cpx;
byte data[];
ClassData cls;
public AttrData(ClassData cls) {
this.cls = cls;
}
/**
* attributeTag
* <p>
* returns either -1 (not found), or the hashed integer tag tag.
*/
public static int attributeTag(String tagname) {
int intgr = Tables.attrtagValue(tagname);
if (intgr == 0) {
return -1;
}
return intgr;
}
public void read(int name_cpx, int attrlen, DataInputStream in) throws IOException {
this.name_cpx = name_cpx;
data = new byte[attrlen];
TraceUtils.traceln(format("AttrData:#%d len=%d", name_cpx, attrlen));
in.readFully(data);
}
}