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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.dx.rop.cst;
     18 
     19 import com.android.dx.rop.type.Type;
     20 import com.android.dx.util.Hex;
     21 
     22 /**
     23  * Constants of type {@code CONSTANT_Long_info}.
     24  */
     25 public final class CstLong
     26         extends CstLiteral64 {
     27     /** {@code non-null;} instance representing {@code 0} */
     28     public static final CstLong VALUE_0 = make(0);
     29 
     30     /** {@code non-null;} instance representing {@code 1} */
     31     public static final CstLong VALUE_1 = make(1);
     32 
     33     /**
     34      * Makes an instance for the given value. This may (but does not
     35      * necessarily) return an already-allocated instance.
     36      *
     37      * @param value the {@code long} value
     38      */
     39     public static CstLong make(long value) {
     40         /*
     41          * Note: Javadoc notwithstanding, this implementation always
     42          * allocates.
     43          */
     44         return new CstLong(value);
     45     }
     46 
     47     /**
     48      * Constructs an instance. This constructor is private; use {@link #make}.
     49      *
     50      * @param value the {@code long} value
     51      */
     52     private CstLong(long value) {
     53         super(value);
     54     }
     55 
     56     /** {@inheritDoc} */
     57     @Override
     58     public String toString() {
     59         long value = getLongBits();
     60         return "long{0x" + Hex.u8(value) + " / " + value + '}';
     61     }
     62 
     63     /** {@inheritDoc} */
     64     public Type getType() {
     65         return Type.LONG;
     66     }
     67 
     68     /** {@inheritDoc} */
     69     @Override
     70     public String typeName() {
     71         return "long";
     72     }
     73 
     74     /** {@inheritDoc} */
     75     public String toHuman() {
     76         return Long.toString(getLongBits());
     77     }
     78 
     79     /**
     80      * Gets the {@code long} value.
     81      *
     82      * @return the value
     83      */
     84     public long getValue() {
     85         return getLongBits();
     86     }
     87 }
     88