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      1 /*
      2  * Copyright (C) 2011 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.io.instructions;
     18 
     19 /**
     20  * A decoded Dalvik instruction which contains the payload for
     21  * a {@code packed-switch} instruction.
     22  */
     23 public final class FillArrayDataPayloadDecodedInstruction
     24         extends DecodedInstruction {
     25     /** data array */
     26     private final Object data;
     27 
     28     /** number of elements */
     29     private final int size;
     30 
     31     /** element width */
     32     private final int elementWidth;
     33 
     34     /**
     35      * Constructs an instance. This private instance doesn't check the
     36      * type of the data array.
     37      */
     38     private FillArrayDataPayloadDecodedInstruction(InstructionCodec format,
     39             int opcode, Object data, int size, int elementWidth) {
     40         super(format, opcode, 0, null, 0, 0L);
     41 
     42         this.data = data;
     43         this.size = size;
     44         this.elementWidth = elementWidth;
     45     }
     46 
     47     /**
     48      * Constructs an instance.
     49      */
     50     public FillArrayDataPayloadDecodedInstruction(InstructionCodec format,
     51             int opcode, byte[] data) {
     52         this(format, opcode, data, data.length, 1);
     53     }
     54 
     55     /**
     56      * Constructs an instance.
     57      */
     58     public FillArrayDataPayloadDecodedInstruction(InstructionCodec format,
     59             int opcode, short[] data) {
     60         this(format, opcode, data, data.length, 2);
     61     }
     62 
     63     /**
     64      * Constructs an instance.
     65      */
     66     public FillArrayDataPayloadDecodedInstruction(InstructionCodec format,
     67             int opcode, int[] data) {
     68         this(format, opcode, data, data.length, 4);
     69     }
     70 
     71     /**
     72      * Constructs an instance.
     73      */
     74     public FillArrayDataPayloadDecodedInstruction(InstructionCodec format,
     75             int opcode, long[] data) {
     76         this(format, opcode, data, data.length, 8);
     77     }
     78 
     79     /** {@inheritDoc} */
     80     @Override
     81     public int getRegisterCount() {
     82         return 0;
     83     }
     84 
     85     public short getElementWidthUnit() {
     86         return (short) elementWidth;
     87     }
     88 
     89     public int getSize() {
     90         return size;
     91     }
     92 
     93     public Object getData() {
     94         return data;
     95     }
     96 
     97     /** {@inheritDoc} */
     98     @Override
     99     public DecodedInstruction withIndex(int newIndex) {
    100         throw new UnsupportedOperationException("no index in instruction");
    101     }
    102 }
    103