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+/*
+ * 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 com.sun.org.apache.bcel.internal.Constants;
+
+/**
+ * Denotes array type, such as int[][]
+ *
+ * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ */
+public final class ArrayType extends ReferenceType {
+ private int dimensions;
+ private Type basic_type;
+
+ /**
+ * Convenience constructor for array type, e.g. int[]
+ *
+ * @param type array type, e.g. T_INT
+ */
+ public ArrayType(byte type, int dimensions) {
+ this(BasicType.getType(type), dimensions);
+ }
+
+ /**
+ * Convenience constructor for reference array type, e.g. Object[]
+ *
+ * @param class_name complete name of class (java.lang.String, e.g.)
+ */
+ public ArrayType(String class_name, int dimensions) {
+ this(new ObjectType(class_name), dimensions);
+ }
+
+ /**
+ * Constructor for array of given type
+ *
+ * @param type type of array (may be an array itself)
+ */
+ public ArrayType(Type type, int dimensions) {
+ super(Constants.T_ARRAY, "<dummy>");
+
+ if((dimensions < 1) || (dimensions > Constants.MAX_BYTE))
+ throw new ClassGenException("Invalid number of dimensions: " + dimensions);
+
+ switch(type.getType()) {
+ case Constants.T_ARRAY:
+ ArrayType array = (ArrayType)type;
+ this.dimensions = dimensions + array.dimensions;
+ basic_type = array.basic_type;
+ break;
+
+ case Constants.T_VOID:
+ throw new ClassGenException("Invalid type: void[]");
+
+ default: // Basic type or reference
+ this.dimensions = dimensions;
+ basic_type = type;
+ break;
+ }
+
+ StringBuffer buf = new StringBuffer();
+ for(int i=0; i < this.dimensions; i++)
+ buf.append('[');
+
+ buf.append(basic_type.getSignature());
+
+ signature = buf.toString();
+ }
+
+ /**
+ * @return basic type of array, i.e., for int[][][] the basic type is int
+ */
+ public Type getBasicType() {
+ return basic_type;
+ }
+
+ /**
+ * @return element type of array, i.e., for int[][][] the element type is int[][]
+ */
+ public Type getElementType() {
+ if(dimensions == 1)
+ return basic_type;
+ else
+ return new ArrayType(basic_type, dimensions - 1);
+ }
+
+ /** @return number of dimensions of array
+ */
+ public int getDimensions() { return dimensions; }
+
+ /** @return a hash code value for the object.
+ */
+ public int hashCode() { return basic_type.hashCode() ^ dimensions; }
+
+ /** @return true if both type objects refer to the same array type.
+ */
+ public boolean equals(Object type) {
+ if(type instanceof ArrayType) {
+ ArrayType array = (ArrayType)type;
+ return (array.dimensions == dimensions) && array.basic_type.equals(basic_type);
+ } else
+ return false;
+ }
+}