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Diffstat (limited to 'src/share/classes/com/sun/org/apache/bcel/internal/generic/ArrayType.java')
-rw-r--r-- | src/share/classes/com/sun/org/apache/bcel/internal/generic/ArrayType.java | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/src/share/classes/com/sun/org/apache/bcel/internal/generic/ArrayType.java b/src/share/classes/com/sun/org/apache/bcel/internal/generic/ArrayType.java new file mode 100644 index 0000000..54bd83a --- /dev/null +++ b/src/share/classes/com/sun/org/apache/bcel/internal/generic/ArrayType.java @@ -0,0 +1,159 @@ +/* + * 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; + } +} |