org.gjt.jclasslib.bytecode
Class BranchInstruction

java.lang.Object
  org.gjt.jclasslib.bytecode.AbstractInstruction
      org.gjt.jclasslib.bytecode.AbstractBranchInstruction
          org.gjt.jclasslib.bytecode.BranchInstruction

All Implemented Interfaces:

Opcodes

public class BranchInstruction
extends AbstractBranchInstruction

Describes an instruction that branches to a different offset.

Version:

$Revision: 1.6 $ $Date: 2005-06-22 13:56:37 $

Author:

Ingo Kegel

Field Summary

Fields inherited from interface org.gjt.jclasslib.bytecode.Opcodes

NEWARRAY_T_BOOLEAN, NEWARRAY_T_BYTE, NEWARRAY_T_CHAR, NEWARRAY_T_DOUBLE, NEWARRAY_T_FLOAT, NEWARRAY_T_INT, NEWARRAY_T_LONG, NEWARRAY_T_SHORT, OPCODE_AALOAD, OPCODE_AASTORE, OPCODE_ACONST_NULL, OPCODE_ALOAD, OPCODE_ALOAD_0, OPCODE_ALOAD_1, OPCODE_ALOAD_2, OPCODE_ALOAD_3, OPCODE_ANEWARRAY, OPCODE_ARETURN, OPCODE_ARRAYLENGTH, OPCODE_ASTORE, OPCODE_ASTORE_0, OPCODE_ASTORE_1, OPCODE_ASTORE_2, OPCODE_ASTORE_3, OPCODE_ATHROW, OPCODE_BALOAD, OPCODE_BASTORE, OPCODE_BIPUSH, OPCODE_BREAKPOINT, OPCODE_CALOAD, OPCODE_CASTORE, OPCODE_CHECKCAST, OPCODE_D2F, OPCODE_D2I, OPCODE_D2L, OPCODE_DADD, OPCODE_DALOAD, OPCODE_DASTORE, OPCODE_DCMPG, OPCODE_DCMPL, OPCODE_DCONST_0, OPCODE_DCONST_1, OPCODE_DDIV, OPCODE_DLOAD, OPCODE_DLOAD_0, OPCODE_DLOAD_1, OPCODE_DLOAD_2, OPCODE_DLOAD_3, OPCODE_DMUL, OPCODE_DNEG, OPCODE_DREM, OPCODE_DRETURN, OPCODE_DSTORE, OPCODE_DSTORE_0, OPCODE_DSTORE_1, OPCODE_DSTORE_2, OPCODE_DSTORE_3, OPCODE_DSUB, OPCODE_DUP, OPCODE_DUP_X1, OPCODE_DUP_X2, OPCODE_DUP2, OPCODE_DUP2_X1, OPCODE_DUP2_X2, OPCODE_F2D, OPCODE_F2I, OPCODE_F2L, OPCODE_FADD, OPCODE_FALOAD, OPCODE_FASTORE, OPCODE_FCMPG, OPCODE_FCMPL, OPCODE_FCONST_0, OPCODE_FCONST_1, OPCODE_FCONST_2, OPCODE_FDIV, OPCODE_FLOAD, OPCODE_FLOAD_0, OPCODE_FLOAD_1, OPCODE_FLOAD_2, OPCODE_FLOAD_3, OPCODE_FMUL, OPCODE_FNEG, OPCODE_FREM, OPCODE_FRETURN, OPCODE_FSTORE, OPCODE_FSTORE_0, OPCODE_FSTORE_1, OPCODE_FSTORE_2, OPCODE_FSTORE_3, OPCODE_FSUB, OPCODE_GETFIELD, OPCODE_GETSTATIC, OPCODE_GOTO, OPCODE_GOTO_W, OPCODE_I2B, OPCODE_I2C, OPCODE_I2D, OPCODE_I2F, OPCODE_I2L, OPCODE_I2S, OPCODE_IADD, OPCODE_IALOAD, OPCODE_IAND, OPCODE_IASTORE, OPCODE_ICONST_0, OPCODE_ICONST_1, OPCODE_ICONST_2, OPCODE_ICONST_3, OPCODE_ICONST_4, OPCODE_ICONST_5, OPCODE_ICONST_M1, OPCODE_IDIV, OPCODE_IF_ACMPEQ, OPCODE_IF_ACMPNE, OPCODE_IF_ICMPEQ, OPCODE_IF_ICMPGE, OPCODE_IF_ICMPGT, OPCODE_IF_ICMPLE, OPCODE_IF_ICMPLT, OPCODE_IF_ICMPNE, OPCODE_IFEQ, OPCODE_IFGE, OPCODE_IFGT, OPCODE_IFLE, OPCODE_IFLT, OPCODE_IFNE, OPCODE_IFNONNULL, OPCODE_IFNULL, OPCODE_IINC, OPCODE_ILOAD, OPCODE_ILOAD_0, OPCODE_ILOAD_1, OPCODE_ILOAD_2, OPCODE_ILOAD_3, OPCODE_IMPDEP1, OPCODE_IMPDEP2, OPCODE_IMUL, OPCODE_INEG, OPCODE_INSTANCEOF, OPCODE_INVOKEDYNAMIC, OPCODE_INVOKEINTERFACE, OPCODE_INVOKESPECIAL, OPCODE_INVOKESTATIC, OPCODE_INVOKEVIRTUAL, OPCODE_IOR, OPCODE_IREM, OPCODE_IRETURN, OPCODE_ISHL, OPCODE_ISHR, OPCODE_ISTORE, OPCODE_ISTORE_0, OPCODE_ISTORE_1, OPCODE_ISTORE_2, OPCODE_ISTORE_3, OPCODE_ISUB, OPCODE_IUSHR, OPCODE_IXOR, OPCODE_JSR, OPCODE_JSR_W, OPCODE_L2D, OPCODE_L2F, OPCODE_L2I, OPCODE_LADD, OPCODE_LALOAD, OPCODE_LAND, OPCODE_LASTORE, OPCODE_LCMP, OPCODE_LCONST_0, OPCODE_LCONST_1, OPCODE_LDC, OPCODE_LDC_W, OPCODE_LDC2_W, OPCODE_LDIV, OPCODE_LLOAD, OPCODE_LLOAD_0, OPCODE_LLOAD_1, OPCODE_LLOAD_2, OPCODE_LLOAD_3, OPCODE_LMUL, OPCODE_LNEG, OPCODE_LOOKUPSWITCH, OPCODE_LOR, OPCODE_LREM, OPCODE_LRETURN, OPCODE_LSHL, OPCODE_LSHR, OPCODE_LSTORE, OPCODE_LSTORE_0, OPCODE_LSTORE_1, OPCODE_LSTORE_2, OPCODE_LSTORE_3, OPCODE_LSUB, OPCODE_LUSHR, OPCODE_LXOR, OPCODE_MONITORENTER, OPCODE_MONITOREXIT, OPCODE_MULTIANEWARRAY, OPCODE_NEW, OPCODE_NEWARRAY, OPCODE_NOP, OPCODE_POP, OPCODE_POP2, OPCODE_PUTFIELD, OPCODE_PUTSTATIC, OPCODE_RET, OPCODE_RETURN, OPCODE_SALOAD, OPCODE_SASTORE, OPCODE_SIPUSH, OPCODE_SWAP, OPCODE_TABLESWITCH, OPCODE_WIDE

Constructor Summary

BranchInstruction(int opcode)
Constructor.

BranchInstruction(int opcode, int branchOffset)
Constructor.

Method Summary

int	getSize() Get the size in bytes of this instruction.
void	read(ByteCodeInput in) Read this instruction from the given ByteCodeInput.
void	write(ByteCodeOutput out) Write this instruction to the given ByteCodeOutput.

Methods inherited from class org.gjt.jclasslib.bytecode.AbstractBranchInstruction

getBranchOffset, setBranchOffset

Methods inherited from class org.gjt.jclasslib.bytecode.AbstractInstruction

getOffset, getOpcode, getOpcodeVerbose, setOffset, setOpcode

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BranchInstruction

public BranchInstruction(int opcode)

Constructor.

Parameters:

opcode - the opcode.

BranchInstruction

public BranchInstruction(int opcode,
                         int branchOffset)

Constructor.

Parameters:

opcode - the opcode.

branchOffset - the branch offset.

Method Detail

getSize

public int getSize()

Description copied from class: AbstractInstruction

Get the size in bytes of this instruction.

Overrides:

getSize in class AbstractInstruction

Returns:

the size in bytes

read

public void read(ByteCodeInput in)
          throws java.io.IOException

Description copied from class: AbstractInstruction

Read this instruction from the given ByteCodeInput.

Excpects ByteCodeInput to be in JVM class file format and just before a instruction of this kind.

Overrides:

read in class AbstractInstruction

Parameters:

in - the ByteCodeInput from which to read

Throws:

java.io.IOException - if an exception occurs with the ByteCodeInput

write

public void write(ByteCodeOutput out)
           throws java.io.IOException

Description copied from class: AbstractInstruction

Write this instruction to the given ByteCodeOutput.

Overrides:

write in class AbstractInstruction

Parameters:

out - the ByteCodeOutput to which to write

Throws:

java.io.IOException - if an exception occurs with the ByteCodeOutput