Examples of com.sun.org.apache.bcel.internal.util.ByteSequence

Package com.sun.org.apache.bcel.internal.util

Examples of com.sun.org.apache.bcel.internal.util.ByteSequence

com.sun.org.apache.bcel.internal.util.ByteSequence
Utility class that implements a sequence of bytes which can be read via the `readByte()' method. This is used to implement a wrapper for the Java byte code stream to gain some more readability. @version $Id: ByteSequence.java,v 1.1.2.1 2005/07/31 23:47:00 jeffsuttor Exp $ @author M. Dahm

   * Initialize instruction list from byte array.
   *
   * @param code byte array containing the instructions
   */
  public InstructionList(byte[] code) {
    ByteSequence        bytes = new ByteSequence(code);
    InstructionHandle[] ihs   = new InstructionHandle[code.length];
    int[]               pos   = new int[code.length]; // Can't be more than that
    int                 count = 0; // Contains actual length


    /* Pass 1: Create an object for each byte code and append them
     * to the list.
     */
    try {
      while(bytes.available() > 0) {
  // Remember byte offset and associate it with the instruction
  int off =  bytes.getIndex();
  pos[count] = off;
  
  /* Read one instruction from the byte stream, the byte position is set
   * accordingly.
   */

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  /**
   * @return an array of instructions without target information for branch instructions.
   */
  public Instruction[] getInstructions() {
    ByteSequence  bytes        = new ByteSequence(getByteCode());
    ArrayList     instructions = new ArrayList();


    try {
      while(bytes.available() > 0) {
  instructions.add(Instruction.readInstruction(bytes));
      }
    } catch(IOException e) { throw new ClassGenException(e.toString()); }


    Instruction[] result = new Instruction[instructions.size()];

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  public static final String codeToString(byte[] code, 
            ConstantPool constant_pool, 
            int index, int length, boolean verbose)
  {
    StringBuffer buf    = new StringBuffer(code.length * 20); // Should be sufficient
    ByteSequence stream = new ByteSequence(code);


    try {
      for(int i=0; i < index; i++) // Skip `index' lines of code
  codeToString(stream, constant_pool, verbose);


      for(int i=0; stream.available() > 0; i++) {
  if((length < 0) || (i < length)) {
    String indices = fillup(stream.getIndex() + ":", 6, true, ' ');
    buf.append(indices + codeToString(stream, constant_pool, verbose) + '\n');
  }
      }
    } catch(IOException e) {
      System.out.println(buf.toString());

View Full Code Here

   * Initialize instruction list from byte array.
   *
   * @param code byte array containing the instructions
   */
  public InstructionList(byte[] code) {
    ByteSequence        bytes = new ByteSequence(code);
    InstructionHandle[] ihs   = new InstructionHandle[code.length];
    int[]               pos   = new int[code.length]; // Can't be more than that
    int                 count = 0; // Contains actual length


    /* Pass 1: Create an object for each byte code and append them
     * to the list.
     */
    try {
      while(bytes.available() > 0) {
        // Remember byte offset and associate it with the instruction
        int off =  bytes.getIndex();
        pos[count] = off;


        /* Read one instruction from the byte stream, the byte position is set
         * accordingly.
         */

View Full Code Here


  /**
   * @return an array of instructions without target information for branch instructions.
   */
  public Instruction[] getInstructions() {
    ByteSequence  bytes        = new ByteSequence(getByteCode());
    ArrayList     instructions = new ArrayList();


    try {
      while(bytes.available() > 0) {
        instructions.add(Instruction.readInstruction(bytes));
      }
    } catch(IOException e) { throw new ClassGenException(e.toString()); }


    Instruction[] result = new Instruction[instructions.size()];

View Full Code Here

  public static final String codeToString(byte[] code,
                                          ConstantPool constant_pool,
                                          int index, int length, boolean verbose)
  {
    StringBuffer buf    = new StringBuffer(code.length * 20); // Should be sufficient
    ByteSequence stream = new ByteSequence(code);


    try {
      for(int i=0; i < index; i++) // Skip `index' lines of code
        codeToString(stream, constant_pool, verbose);


      for(int i=0; stream.available() > 0; i++) {
        if((length < 0) || (i < length)) {
          String indices = fillup(stream.getIndex() + ":", 6, true, ' ');
          buf.append(indices + codeToString(stream, constant_pool, verbose) + '\n');
        }
      }
    } catch(IOException e) {
      System.out.println(buf.toString());

View Full Code Here

   * Initialize instruction list from byte array.
   *
   * @param code byte array containing the instructions
   */
  public InstructionList(byte[] code) {
    ByteSequence        bytes = new ByteSequence(code);
    InstructionHandle[] ihs   = new InstructionHandle[code.length];
    int[]               pos   = new int[code.length]; // Can't be more than that
    int                 count = 0; // Contains actual length


    /* Pass 1: Create an object for each byte code and append them
     * to the list.
     */
    try {
      while(bytes.available() > 0) {
        // Remember byte offset and associate it with the instruction
        int off =  bytes.getIndex();
        pos[count] = off;


        /* Read one instruction from the byte stream, the byte position is set
         * accordingly.
         */

View Full Code Here

  public static final String codeToString(byte[] code,
                                          ConstantPool constant_pool,
                                          int index, int length, boolean verbose)
  {
    StringBuffer buf    = new StringBuffer(code.length * 20); // Should be sufficient
    ByteSequence stream = new ByteSequence(code);


    try {
      for(int i=0; i < index; i++) // Skip `index' lines of code
        codeToString(stream, constant_pool, verbose);


      for(int i=0; stream.available() > 0; i++) {
        if((length < 0) || (i < length)) {
          String indices = fillup(stream.getIndex() + ":", 6, true, ' ');
          buf.append(indices + codeToString(stream, constant_pool, verbose) + '\n');
        }
      }
    } catch(IOException e) {
      System.out.println(buf.toString());

View Full Code Here


  /**
   * @return an array of instructions without target information for branch instructions.
   */
  public Instruction[] getInstructions() {
    ByteSequence  bytes        = new ByteSequence(getByteCode());
    ArrayList     instructions = new ArrayList();


    try {
      while(bytes.available() > 0) {
        instructions.add(Instruction.readInstruction(bytes));
      }
    } catch(IOException e) { throw new ClassGenException(e.toString()); }


    Instruction[] result = new Instruction[instructions.size()];

View Full Code Here

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com.sun.org.apache.bcel.internal.generic.InstructionList

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