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- /*
- * Javassist, a Java-bytecode translator toolkit.
- * Copyright (C) 1999-2004 Shigeru Chiba. All Rights Reserved.
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. Alternatively, the contents of this file may be used under
- * the terms of the GNU Lesser General Public License Version 2.1 or later.
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- */
-
- package javassist.bytecode;
-
- import java.io.DataInputStream;
- import java.io.IOException;
- import java.util.Map;
-
- /**
- * <code>Signature_attribute</code>.
- */
- public class SignatureAttribute extends AttributeInfo {
- /**
- * The name of this attribute <code>"Signature"</code>.
- */
- public static final String tag = "Signature";
-
- SignatureAttribute(ConstPool cp, int n, DataInputStream in)
- throws IOException
- {
- super(cp, n, in);
- }
-
- /**
- * Constructs a Signature attribute.
- *
- * @param cp a constant pool table.
- * @param signature the signature represented by this attribute.
- */
- public SignatureAttribute(ConstPool cp, String signature) {
- super(cp, tag);
- int index = cp.addUtf8Info(signature);
- byte[] bvalue = new byte[2];
- bvalue[0] = (byte)(index >>> 8);
- bvalue[1] = (byte)index;
- set(bvalue);
- }
-
- /**
- * Returns the signature indicated by <code>signature_index</code>.
- */
- public String getSignature() {
- return getConstPool().getUtf8Info(ByteArray.readU16bit(get(), 0));
- }
-
- /**
- * Makes a copy. Class names are replaced according to the
- * given <code>Map</code> object.
- *
- * @param newCp the constant pool table used by the new copy.
- * @param classnames pairs of replaced and substituted
- * class names.
- */
- public AttributeInfo copy(ConstPool newCp, Map classnames) {
- return new SignatureAttribute(newCp, getSignature());
- }
- }
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