| /* |
| * 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; |
| } |
| } |