Start line:  
End line:  

Snippet Preview

Snippet HTML Code

Stack Overflow Questions
  /* Soot - a J*va Optimization Framework
   * Copyright (C) 1997 Clark Verbrugge
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the
  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  * Boston, MA 02111-1307, USA.
  */
 
 /*
  * Modified by the Sable Research Group and others 1997-1999.  
  * See the 'credits' file distributed with Soot for the complete list of
  * contributors.  (Soot is distributed at http://www.sable.mcgill.ca/soot)
  */
 
 
 
 
 
 
 
 package soot.coffi;
Instruction subclasses are used to represent parsed bytecode; each bytecode operation has a corresponding subclass of Instruction.

Each subclass is derived from one of

  • Instruction
  • Instruction_noargs (an Instruction with no embedded arguments)
  • Instruction_byte (an Instruction with a single byte data argument)
  • Instruction_bytevar (a byte argument specifying a local variable)
  • Instruction_byteindex (a byte argument specifying a constant pool index)
  • Instruction_int (an Instruction with a single short data argument)
  • Instruction_intvar (a short argument specifying a local variable)
  • Instruction_intindex (a short argument specifying a constant pool index)
  • Instruction_intbranch (a short argument specifying a code offset)
  • Instruction_longbranch (an int argument specifying a code offset)

 
 class Instruction_bytevar extends Instruction implements Interface_OneIntArg
 {
    
arg_b needs to be short in order to contain all the possible values for an unsigned byte
 
     public int arg_b;
     public boolean isWide;
 
     public Instruction_bytevar(byte c) { super(c); }
     public String toString(cp_info constant_pool[]) {
 	return super.toString(constant_pool) +  +  + ;
     }
 
     public int nextOffset(int curr) { return curr + 1 + (() ? 3 : 1); }
 
     public int parse(byte bc[],int index)
     {
         int indexbyte1 = (bc[index]) & 0xff;
 
         if()
         {
             int indexbyte2 = (bc[index+1]) & 0xff;
 
              = (indexbyte1 << 8) | indexbyte2;
 
             return index+2;
         }
         else
         {
              = indexbyte1;
             return index+1;
         }
     }
 
     public int compile(byte bc[],int index) { bc[index++] = bc[index++] = (bytereturn index; }
 
     public int getIntArg()
     {
 	return ;
    }
New to GrepCode? Check out our FAQ X