--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/share/classes/com/sun/org/apache/bcel/internal/classfile/StackMap.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,188 @@
+/*
+ * 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 stack map attribute used for
+ * preverification of Java classes for the <a
+ * href="http://java.sun.com/j2me/"> Java 2 Micro Edition</a>
+ * (J2ME). This attribute is used by the <a
+ * href="http://java.sun.com/products/cldc/">KVM</a> and contained
+ * within the Code attribute of a method. See CLDC specification
+ * 5.3.1.2
+ *
+ * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ * @see Code
+ * @see StackMapEntry
+ * @see StackMapType
+ */
+public final class StackMap extends Attribute implements Node {
+ private int map_length;
+ private StackMapEntry[] map; // Table of stack map entries
+
+ /*
+ * @param name_index Index of name
+ * @param length Content length in bytes
+ * @param map Table of stack map entries
+ * @param constant_pool Array of constants
+ */
+ public StackMap(int name_index, int length, StackMapEntry[] map,
+ ConstantPool constant_pool)
+ {
+ super(Constants.ATTR_STACK_MAP, name_index, length, constant_pool);
+
+ setStackMap(map);
+ }
+
+ /**
+ * Construct object from file stream.
+ * @param name_index Index of name
+ * @param length Content length in bytes
+ * @param file Input stream
+ * @throws IOException
+ * @param constant_pool Array of constants
+ */
+ StackMap(int name_index, int length, DataInputStream file,
+ ConstantPool constant_pool) throws IOException
+ {
+ this(name_index, length, (StackMapEntry[])null, constant_pool);
+
+ map_length = file.readUnsignedShort();
+ map = new StackMapEntry[map_length];
+
+ for(int i=0; i < map_length; i++)
+ map[i] = new StackMapEntry(file, constant_pool);
+ }
+
+ /**
+ * Dump line number table attribute to file stream in binary format.
+ *
+ * @param file Output file stream
+ * @throws IOException
+ */
+ public final void dump(DataOutputStream file) throws IOException
+ {
+ super.dump(file);
+ file.writeShort(map_length);
+ for(int i=0; i < map_length; i++)
+ map[i].dump(file);
+ }
+
+ /**
+ * @return Array of stack map entries
+ */
+ public final StackMapEntry[] getStackMap() { return map; }
+
+ /**
+ * @param map Array of stack map entries
+ */
+ public final void setStackMap(StackMapEntry[] map) {
+ this.map = map;
+
+ map_length = (map == null)? 0 : map.length;
+ }
+
+ /**
+ * @return String representation.
+ */
+ public final String toString() {
+ StringBuffer buf = new StringBuffer("StackMap(");
+
+ for(int i=0; i < map_length; i++) {
+ buf.append(map[i].toString());
+
+ if(i < map_length - 1)
+ buf.append(", ");
+ }
+
+ buf.append(')');
+
+ return buf.toString();
+ }
+
+ /**
+ * @return deep copy of this attribute
+ */
+ public Attribute copy(ConstantPool constant_pool) {
+ StackMap c = (StackMap)clone();
+
+ c.map = new StackMapEntry[map_length];
+ for(int i=0; i < map_length; i++)
+ c.map[i] = map[i].copy();
+
+ c.constant_pool = constant_pool;
+ return c;
+ }
+
+ /**
+ * 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.visitStackMap(this);
+ }
+
+ public final int getMapLength() { return map_length; }
+}