/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.jack.dx.io.instructions;

/**
 * A decoded Dalvik instruction which contains the payload for
 * a {@code packed-switch} instruction.
 */
public final class FillArrayDataPayloadDecodedInstruction extends DecodedInstruction {
  /** data array */
  private final Object data;

  /** number of elements */
  private final int size;

  /** element width */
  private final int elementWidth;

  /**
   * Constructs an instance. This private instance doesn't check the
   * type of the data array.
   */
  private FillArrayDataPayloadDecodedInstruction(InstructionCodec format, int opcode, Object data,
      int size, int elementWidth) {
    super(format, opcode, 0, null, 0, 0L);

    this.data = data;
    this.size = size;
    this.elementWidth = elementWidth;
  }

  /**
   * Constructs an instance.
   */
  public FillArrayDataPayloadDecodedInstruction(InstructionCodec format, int opcode, byte[] data) {
    this(format, opcode, data, data.length, 1);
  }

  /**
   * Constructs an instance.
   */
  public FillArrayDataPayloadDecodedInstruction(InstructionCodec format, int opcode, short[] data) {
    this(format, opcode, data, data.length, 2);
  }

  /**
   * Constructs an instance.
   */
  public FillArrayDataPayloadDecodedInstruction(InstructionCodec format, int opcode, int[] data) {
    this(format, opcode, data, data.length, 4);
  }

  /**
   * Constructs an instance.
   */
  public FillArrayDataPayloadDecodedInstruction(InstructionCodec format, int opcode, long[] data) {
    this(format, opcode, data, data.length, 8);
  }

  /** @inheritDoc */
  @Override
  public int getRegisterCount() {
    return 0;
  }

  public short getElementWidthUnit() {
    return (short) elementWidth;
  }

  public int getSize() {
    return size;
  }

  public Object getData() {
    return data;
  }

  /** @inheritDoc */
  @Override
  public DecodedInstruction withIndex(int newIndex) {
    throw new UnsupportedOperationException("no index in instruction");
  }
}