--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/share/classes/com/sun/org/apache/bcel/internal/classfile/LocalVariable.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,262 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+package com.sun.org.apache.bcel.internal.classfile;
+
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation. All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ * if any, must include the following acknowledgment:
+ * "This product includes software developed by the
+ * Apache Software Foundation (http://www.apache.org/)."
+ * Alternately, this acknowledgment may appear in the software itself,
+ * if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" and
+ * "Apache BCEL" must not be used to endorse or promote products
+ * derived from this software without prior written permission. For
+ * written permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ * "Apache BCEL", nor may "Apache" appear in their name, without
+ * prior written permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation. For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+
+import com.sun.org.apache.bcel.internal.Constants;
+import java.io.*;
+
+/**
+ * This class represents a local variable within a method. It contains its
+ * scope, name, signature and index on the method's frame.
+ *
+ * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ * @see LocalVariableTable
+ */
+public final class LocalVariable
+ implements Constants, Cloneable, Node, Serializable
+{
+ private int start_pc; // Range in which the variable is valid
+ private int length;
+ private int name_index; // Index in constant pool of variable name
+ private int signature_index; // Index of variable signature
+ private int index; /* Variable is `index'th local variable on
+ * this method's frame.
+ */
+
+ private ConstantPool constant_pool;
+
+ /**
+ * Initialize from another object. Note that both objects use the same
+ * references (shallow copy). Use copy() for a physical copy.
+ */
+ public LocalVariable(LocalVariable c) {
+ this(c.getStartPC(), c.getLength(), c.getNameIndex(),
+ c.getSignatureIndex(), c.getIndex(), c.getConstantPool());
+ }
+
+ /**
+ * Construct object from file stream.
+ * @param file Input stream
+ * @throws IOException
+ */
+ LocalVariable(DataInputStream file, ConstantPool constant_pool)
+ throws IOException
+ {
+ this(file.readUnsignedShort(), file.readUnsignedShort(),
+ file.readUnsignedShort(), file.readUnsignedShort(),
+ file.readUnsignedShort(), constant_pool);
+ }
+
+ /**
+ * @param start_pc Range in which the variable
+ * @param length ... is valid
+ * @param name_index Index in constant pool of variable name
+ * @param signature_index Index of variable's signature
+ * @param index Variable is `index'th local variable on the method's frame
+ * @param constant_pool Array of constants
+ */
+ public LocalVariable(int start_pc, int length, int name_index,
+ int signature_index, int index,
+ ConstantPool constant_pool)
+ {
+ this.start_pc = start_pc;
+ this.length = length;
+ this.name_index = name_index;
+ this.signature_index = signature_index;
+ this.index = index;
+ this.constant_pool = constant_pool;
+ }
+
+ /**
+ * Called by objects that are traversing the nodes of the tree implicitely
+ * defined by the contents of a Java class. I.e., the hierarchy of methods,
+ * fields, attributes, etc. spawns a tree of objects.
+ *
+ * @param v Visitor object
+ */
+ public void accept(Visitor v) {
+ v.visitLocalVariable(this);
+ }
+
+ /**
+ * Dump local variable to file stream in binary format.
+ *
+ * @param file Output file stream
+ * @throws IOException
+ */
+ public final void dump(DataOutputStream file) throws IOException
+ {
+ file.writeShort(start_pc);
+ file.writeShort(length);
+ file.writeShort(name_index);
+ file.writeShort(signature_index);
+ file.writeShort(index);
+ }
+
+ /**
+ * @return Constant pool used by this object.
+ */
+ public final ConstantPool getConstantPool() { return constant_pool; }
+
+ /**
+ * @return Variable is valid within getStartPC() .. getStartPC()+getLength()
+ */
+ public final int getLength() { return length; }
+
+ /**
+ * @return Variable name.
+ */
+ public final String getName() {
+ ConstantUtf8 c;
+
+ c = (ConstantUtf8)constant_pool.getConstant(name_index, CONSTANT_Utf8);
+ return c.getBytes();
+ }
+
+ /**
+ * @return Index in constant pool of variable name.
+ */
+ public final int getNameIndex() { return name_index; }
+
+ /**
+ * @return Signature.
+ */
+ public final String getSignature() {
+ ConstantUtf8 c;
+ c = (ConstantUtf8)constant_pool.getConstant(signature_index,
+ CONSTANT_Utf8);
+ return c.getBytes();
+ }
+
+ /**
+ * @return Index in constant pool of variable signature.
+ */
+ public final int getSignatureIndex() { return signature_index; }
+
+ /**
+ * @return index of register where variable is stored
+ */
+ public final int getIndex() { return index; }
+
+ /**
+ * @return Start of range where he variable is valid
+ */
+ public final int getStartPC() { return start_pc; }
+
+ /**
+ * @param constant_pool Constant pool to be used for this object.
+ */
+ public final void setConstantPool(ConstantPool constant_pool) {
+ this.constant_pool = constant_pool;
+ }
+
+ /**
+ * @param length.
+ */
+ public final void setLength(int length) {
+ this.length = length;
+ }
+
+ /**
+ * @param name_index.
+ */
+ public final void setNameIndex(int name_index) {
+ this.name_index = name_index;
+ }
+
+ /**
+ * @param signature_index.
+ */
+ public final void setSignatureIndex(int signature_index) {
+ this.signature_index = signature_index;
+ }
+
+ /**
+ * @param index.
+ */
+ public final void setIndex(int index) { this.index = index; }
+
+ /**
+ * @param start_pc Specify range where the local variable is valid.
+ */
+ public final void setStartPC(int start_pc) {
+ this.start_pc = start_pc;
+ }
+
+ /**
+ * @return string representation.
+ */
+ public final String toString() {
+ String name = getName(), signature = Utility.signatureToString(getSignature());
+
+ return "LocalVariable(start_pc = " + start_pc + ", length = " + length +
+ ", index = " + index + ":" + signature + " " + name + ")";
+ }
+
+ /**
+ * @return deep copy of this object
+ */
+ public LocalVariable copy() {
+ try {
+ return (LocalVariable)clone();
+ } catch(CloneNotSupportedException e) {}
+
+ return null;
+ }
+}