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- /*
- * Javassist, a Java-bytecode translator toolkit.
- * Copyright (C) 1999- 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,
- * or the Apache License Version 2.0.
- *
- * 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;
-
- import javassist.CtConstructor;
-
- /**
- * <code>EnclosingMethod_attribute</code>.
- */
- public class EnclosingMethodAttribute extends AttributeInfo {
- /**
- * The name of this attribute <code>"EnclosingMethod"</code>.
- */
- public static final String tag = "EnclosingMethod";
-
- EnclosingMethodAttribute(ConstPool cp, int n, DataInputStream in)
- throws IOException
- {
- super(cp, n, in);
- }
-
- /**
- * Constructs an EnclosingMethod attribute.
- *
- * @param cp a constant pool table.
- * @param className the name of the innermost enclosing class.
- * @param methodName the name of the enclosing method.
- * @param methodDesc the descriptor of the enclosing method.
- */
- public EnclosingMethodAttribute(ConstPool cp, String className,
- String methodName, String methodDesc) {
- super(cp, tag);
- int ci = cp.addClassInfo(className);
- int ni = cp.addNameAndTypeInfo(methodName, methodDesc);
- byte[] bvalue = new byte[4];
- bvalue[0] = (byte)(ci >>> 8);
- bvalue[1] = (byte)ci;
- bvalue[2] = (byte)(ni >>> 8);
- bvalue[3] = (byte)ni;
- set(bvalue);
- }
-
- /**
- * Constructs an EnclosingMethod attribute.
- * The value of <code>method_index</code> is set to 0.
- *
- * @param cp a constant pool table.
- * @param className the name of the innermost enclosing class.
- */
- public EnclosingMethodAttribute(ConstPool cp, String className) {
- super(cp, tag);
- int ci = cp.addClassInfo(className);
- int ni = 0;
- byte[] bvalue = new byte[4];
- bvalue[0] = (byte)(ci >>> 8);
- bvalue[1] = (byte)ci;
- bvalue[2] = (byte)(ni >>> 8);
- bvalue[3] = (byte)ni;
- set(bvalue);
- }
-
- /**
- * Returns the value of <code>class_index</code>.
- */
- public int classIndex() {
- return ByteArray.readU16bit(get(), 0);
- }
-
- /**
- * Returns the value of <code>method_index</code>.
- */
- public int methodIndex() {
- return ByteArray.readU16bit(get(), 2);
- }
-
- /**
- * Returns the name of the class specified by <code>class_index</code>.
- */
- public String className() {
- return getConstPool().getClassInfo(classIndex());
- }
-
- /**
- * Returns the method name specified by <code>method_index</code>.
- * If the method is a class initializer (static constructor),
- * {@link MethodInfo#nameClinit} is returned.
- */
- public String methodName() {
- ConstPool cp = getConstPool();
- int mi = methodIndex();
- if (mi == 0)
- return MethodInfo.nameClinit;
- else {
- int ni = cp.getNameAndTypeName(mi);
- return cp.getUtf8Info(ni);
- }
- }
-
- /**
- * Returns the method descriptor specified by <code>method_index</code>.
- */
- public String methodDescriptor() {
- ConstPool cp = getConstPool();
- int mi = methodIndex();
- int ti = cp.getNameAndTypeDescriptor(mi);
- return cp.getUtf8Info(ti);
- }
-
- /**
- * 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) {
- if (methodIndex() == 0)
- return new EnclosingMethodAttribute(newCp, className());
- else
- return new EnclosingMethodAttribute(newCp, className(),
- methodName(), methodDescriptor());
- }
- }
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