1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package jdk.internal.nicl.types;
  25 
  26 public class Array implements Type {
  27     final Type elementType;
  28     final int occurrence;
  29 
  30     /**
  31      * Array type.
  32      *
  33      * @param elementType The element type
  34      * @param occurrence  Number of elements. Negative number indicates incomplete array.
  35      */
  36     public Array(Type elementType, int occurrence) {
  37         this.elementType = elementType;
  38         this.occurrence = occurrence;
  39     }
  40 
  41     public int getOccurrence() {
  42         return occurrence;
  43     }
  44 
  45     public Type getElementType() {
  46         return elementType;
  47     }
  48 
  49     @Override
  50     public long getSize() {
  51         if (occurrence < 0) {
  52             return occurrence;
  53         }
  54 
  55         return occurrence * elementType.getSize();
  56     }
  57 
  58     public int hashCode() {
  59         return occurrence * 31 + elementType.hashCode();
  60     }
  61 
  62     @Override
  63     public boolean equals(Object o) {
  64         if (!(o instanceof jdk.internal.nicl.types.Array)) {
  65             return false;
  66         }
  67         jdk.internal.nicl.types.Array other = (jdk.internal.nicl.types.Array) o;
  68         return (occurrence == other.occurrence &&
  69                 elementType.equals(other.elementType));
  70     }
  71 
  72     @Override
  73     public String toString() {
  74         return "" + occurrence + elementType.toString();
  75     }
  76 }