--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/com/sun/org/apache/bcel/internal/generic/TABLESWITCH.java Thu Apr 12 08:38:26 2012 -0700
@@ -0,0 +1,150 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+package com.sun.org.apache.bcel.internal.generic;
+
+/* ====================================================================
+ * 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 java.io.*;
+import com.sun.org.apache.bcel.internal.util.ByteSequence;
+
+/**
+ * TABLESWITCH - Switch within given range of values, i.e., low..high
+ *
+ * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ * @see SWITCH
+ */
+public class TABLESWITCH extends Select {
+ /**
+ * Empty constructor needed for the Class.newInstance() statement in
+ * Instruction.readInstruction(). Not to be used otherwise.
+ */
+ TABLESWITCH() {}
+
+ /**
+ * @param match sorted array of match values, match[0] must be low value,
+ * match[match_length - 1] high value
+ * @param targets where to branch for matched values
+ * @param target default branch
+ */
+ public TABLESWITCH(int[] match, InstructionHandle[] targets,
+ InstructionHandle target) {
+ super(com.sun.org.apache.bcel.internal.Constants.TABLESWITCH, match, targets, target);
+
+ length = (short)(13 + match_length * 4); /* Alignment remainder assumed
+ * 0 here, until dump time */
+ fixed_length = length;
+ }
+
+ /**
+ * Dump instruction as byte code to stream out.
+ * @param out Output stream
+ */
+ public void dump(DataOutputStream out) throws IOException {
+ super.dump(out);
+
+ int low = (match_length > 0)? match[0] : 0;
+ out.writeInt(low);
+
+ int high = (match_length > 0)? match[match_length - 1] : 0;
+ out.writeInt(high);
+
+ for(int i=0; i < match_length; i++) // jump offsets
+ out.writeInt(indices[i] = getTargetOffset(targets[i]));
+ }
+
+ /**
+ * Read needed data (e.g. index) from file.
+ */
+ protected void initFromFile(ByteSequence bytes, boolean wide) throws IOException
+ {
+ super.initFromFile(bytes, wide);
+
+ int low = bytes.readInt();
+ int high = bytes.readInt();
+
+ match_length = high - low + 1;
+ fixed_length = (short)(13 + match_length * 4);
+ length = (short)(fixed_length + padding);
+
+ match = new int[match_length];
+ indices = new int[match_length];
+ targets = new InstructionHandle[match_length];
+
+ for(int i=low; i <= high; i++)
+ match[i - low] = i;
+
+ for(int i=0; i < match_length; i++) {
+ indices[i] = bytes.readInt();
+ }
+ }
+
+
+ /**
+ * Call corresponding visitor method(s). The order is:
+ * Call visitor methods of implemented interfaces first, then
+ * call methods according to the class hierarchy in descending order,
+ * i.e., the most specific visitXXX() call comes last.
+ *
+ * @param v Visitor object
+ */
+ public void accept(Visitor v) {
+ v.visitVariableLengthInstruction(this);
+ v.visitStackProducer(this);
+ v.visitBranchInstruction(this);
+ v.visitSelect(this);
+ v.visitTABLESWITCH(this);
+ }
+}