Package org.jboss.byteman.agent.adapter.cfg

Class InstructionSequence

java.lang.Object

org.jboss.byteman.agent.adapter.cfg.InstructionSequence

public class InstructionSequence
extends Object

Class used to hold a sequence of instructions within a basic block

Constructor Summary

Constructors

Constructor	Description
InstructionSequence()

Method Summary

Modifier and Type	Method	Description
int	add(int insn)	add an instruction to the sequence
int	add(int insn, int arg1)	add an instruction with one encoded argument to the sequence
int	add(int insn, int[] args)	add an instruction with an arbitrary number of encoded arguments to the sequence
int	add(int insn, int arg1, int arg2)	add an instruction with two encoded arguments to the sequence
int	add(int insn, int arg1, int arg2, int arg3)	add an instruction with three encoded arguments to the sequence
int	add(int insn, int arg1, int arg2, int arg3, int arg4)	add an instruction with four encoded arguments to the sequence
int	get(int i)	return the instruction at the supplied offset
int	getArg(int i, int j)	return a specific encoded argument of a given instruction
int	getArgCount(int i)	return the number of encoded arguments of a given instruction
int	getType(int i)	return the type of a given instruction
int	size()	return the number of instructions in the sequence

Methods inherited from class java.lang.Object

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

Constructor Detail

InstructionSequence

public InstructionSequence()

Method Detail

size

public int size()

return the number of instructions in the sequence

Returns:

the the number of instructions in the sequence

get

public int get(int i)

return the instruction at the supplied offset

Parameters:

i - the offset

Returns:

the ith instruction in the sequuence

getType

public int getType(int i)

return the type of a given instruction

Parameters:

i - the instruction index

Returns:

the ith instruction in the sequuence

getArgCount

public int getArgCount(int i)

return the number of encoded arguments of a given instruction

Parameters:

i - the offset of the instruction

Returns:

the number of encoded arguments of the ith instruction in the sequuence

getArg

public int getArg(int i,
                  int j)

return a specific encoded argument of a given instruction

Parameters:

i - the offset of the instruction

j - the index of the arguument attached to the instruction

Returns:

the jth encoded argument of the ith instruction in the sequuence

add

public int add(int insn)

add an instruction to the sequence

Parameters:

insn - the instruction

Returns:

the index of the newly added instruction

add

public int add(int insn,
               int arg1)

add an instruction with one encoded argument to the sequence

Parameters:

insn - the instruction

arg1 - the argument index

Returns:

the index of the newly added instruction

add

public int add(int insn,
               int arg1,
               int arg2)

add an instruction with two encoded arguments to the sequence

Parameters:

insn - the instruction

arg1 - the first argument index

arg2 - the second argument index

Returns:

the index of the newly added instruction

add

public int add(int insn,
               int arg1,
               int arg2,
               int arg3)

add an instruction with three encoded arguments to the sequence

Parameters:

insn - the instruction

arg1 - the first argument index

arg2 - the second argument index

arg3 - the third argument index

Returns:

the index of the newly added instruction

add

public int add(int insn,
               int arg1,
               int arg2,
               int arg3,
               int arg4)

add an instruction with four encoded arguments to the sequence

Parameters:

insn - the instruction

arg1 - the first argument index

arg2 - the second argument index

arg3 - the third argument index

arg4 - the third argument index

Returns:

the index of the newly added instruction

add

public int add(int insn,
               int[] args)

add an instruction with an arbitrary number of encoded arguments to the sequence

Parameters:

insn - the instruction

args - the arguments

Returns:

the index of the newly added instruction