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InstructionByte.java 3.7KB

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  1. /* ====================================================================
  2. * The Apache Software License, Version 1.1
  3. *
  4. * Copyright (c) 2001 The Apache Software Foundation. All rights
  5. * reserved.
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following conditions
  9. * are met:
  10. *
  11. * 1. Redistributions of source code must retain the above copyright
  12. * notice, this list of conditions and the following disclaimer.
  13. *
  14. * 2. Redistributions in binary form must reproduce the above copyright
  15. * notice, this list of conditions and the following disclaimer in
  16. * the documentation and/or other materials provided with the
  17. * distribution.
  18. *
  19. * 3. The end-user documentation included with the redistribution,
  20. * if any, must include the following acknowledgment:
  21. * "This product includes software developed by the
  22. * Apache Software Foundation (http://www.apache.org/)."
  23. * Alternately, this acknowledgment may appear in the software itself,
  24. * if and wherever such third-party acknowledgments normally appear.
  25. *
  26. * 4. The names "Apache" and "Apache Software Foundation" and
  27. * "Apache BCEL" must not be used to endorse or promote products
  28. * derived from this software without prior written permission. For
  29. * written permission, please contact apache@apache.org.
  30. *
  31. * 5. Products derived from this software may not be called "Apache",
  32. * "Apache BCEL", nor may "Apache" appear in their name, without
  33. * prior written permission of the Apache Software Foundation.
  34. *
  35. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
  36. * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  37. * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  38. * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
  39. * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  40. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  41. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  42. * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  43. * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  44. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  45. * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  46. * SUCH DAMAGE.
  47. * ====================================================================
  48. *
  49. * This software consists of voluntary contributions made by many
  50. * individuals on behalf of the Apache Software Foundation. For more
  51. * information on the Apache Software Foundation, please see
  52. * <http://www.apache.org/>.
  53. */
  54. package org.aspectj.apache.bcel.generic;
  55. import java.io.DataOutputStream;
  56. import java.io.IOException;
  57. /**
  58. * Instruction that needs one byte
  59. */
  60. public class InstructionByte extends Instruction {
  61. private final byte theByte;
  62. public InstructionByte(short opcode, byte b) {
  63. super(opcode);
  64. this.theByte = b;
  65. }
  66. public void dump(DataOutputStream out) throws IOException {
  67. out.writeByte(opcode);
  68. out.writeByte(theByte);
  69. }
  70. public String toString(boolean verbose) {
  71. return super.toString(verbose) + " " + theByte;
  72. }
  73. /**
  74. * For supporting NEWARRAY
  75. *
  76. * @return typecode of the array
  77. */
  78. public final byte getTypecode() {
  79. return theByte;
  80. }
  81. /**
  82. * For supporting NEWARRAY
  83. *
  84. * @return type of the array
  85. */
  86. public final Type getType() {
  87. return new ArrayType(BasicType.getType(theByte), 1);
  88. }
  89. public boolean equals(Object other) {
  90. if (!(other instanceof InstructionByte)) {
  91. return false;
  92. }
  93. InstructionByte o = (InstructionByte) other;
  94. return o.opcode == opcode && o.theByte == theByte;
  95. }
  96. public int hashCode() {
  97. return opcode * 37 + theByte;
  98. }
  99. }