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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.dexgen.rop.cst;
     18 
     19 /**
     20  * Constants which are literal 64-bit values of some sort.
     21  */
     22 public abstract class CstLiteral64
     23         extends CstLiteralBits {
     24     /** the value as {@code long} bits */
     25     private final long bits;
     26 
     27     /**
     28      * Constructs an instance.
     29      *
     30      * @param bits the value as {@code long} bits
     31      */
     32     /*package*/ CstLiteral64(long bits) {
     33         this.bits = bits;
     34     }
     35 
     36     /** {@inheritDoc} */
     37     @Override
     38     public final boolean equals(Object other) {
     39         return (other != null) &&
     40             (getClass() == other.getClass()) &&
     41             bits == ((CstLiteral64) other).bits;
     42     }
     43 
     44     /** {@inheritDoc} */
     45     @Override
     46     public final int hashCode() {
     47         return (int) bits ^ (int) (bits >> 32);
     48     }
     49 
     50     /** {@inheritDoc} */
     51     @Override
     52     protected int compareTo0(Constant other) {
     53         long otherBits = ((CstLiteral64) other).bits;
     54 
     55         if (bits < otherBits) {
     56             return -1;
     57         } else if (bits > otherBits) {
     58             return 1;
     59         } else {
     60             return 0;
     61         }
     62     }
     63 
     64     /** {@inheritDoc} */
     65     @Override
     66     public final boolean isCategory2() {
     67         return true;
     68     }
     69 
     70     /** {@inheritDoc} */
     71     @Override
     72     public final boolean fitsInInt() {
     73         return (int) bits == bits;
     74     }
     75 
     76     /** {@inheritDoc} */
     77     @Override
     78     public final int getIntBits() {
     79         return (int) bits;
     80     }
     81 
     82     /** {@inheritDoc} */
     83     @Override
     84     public final long getLongBits() {
     85         return bits;
     86     }
     87 }
     88