Package com.tonic.analysis.instruction

Class ArithmeticShiftInstruction

java.lang.Object

com.tonic.analysis.instruction.Instruction

com.tonic.analysis.instruction.ArithmeticShiftInstruction

public class ArithmeticShiftInstruction
extends Instruction

Represents shift instructions (ISHL, LSHL, ISHR, LSHR, IUSHR, LUSHR).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ArithmeticShiftInstruction.ShiftType	The shift operation kinds, each pairing a JVM opcode with its mnemonic.

Constructor Summary

Constructors

Constructor	Description
ArithmeticShiftInstruction(int opcode, int offset)	Constructs an ArithmeticShiftInstruction.

Method Summary

Modifier and Type	Method	Description
void	accept(AbstractBytecodeVisitor visitor)	Accepts a visitor for bytecode analysis.
int	getLocalChange()	Returns the change in local variables caused by this instruction.
int	getStackChange()	Returns the change in stack size caused by this instruction.
ArithmeticShiftInstruction.ShiftType	getType()
String	toString()
void	write(DataOutputStream dos)	Writes the instruction to the DataOutputStream.

Methods inherited from class com.tonic.analysis.instruction.Instruction

getLength, getOffset, getOpcode, setOffset

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ArithmeticShiftInstruction

public ArithmeticShiftInstruction(int opcode,
                                  int offset)

Constructs an ArithmeticShiftInstruction.

Parameters:

opcode - The opcode of the instruction.

offset - The bytecode offset of the instruction.

Throws:

IllegalArgumentException - if the opcode is not a shift opcode

Method Detail

accept

public void accept(AbstractBytecodeVisitor visitor)

Description copied from class: Instruction

Accepts a visitor for bytecode analysis.

Specified by:

accept in class Instruction

Parameters:

visitor - The visitor to accept.

write

public void write(DataOutputStream dos)
           throws IOException

Description copied from class: Instruction

Writes the instruction to the DataOutputStream.

Specified by:

write in class Instruction

Parameters:

dos - The DataOutputStream to write to.

Throws:

IOException - If an I/O error occurs.

getStackChange

public int getStackChange()

Description copied from class: Instruction

Returns the change in stack size caused by this instruction.

Specified by:

getStackChange in class Instruction

Returns:

The stack size change.

getLocalChange

public int getLocalChange()

Description copied from class: Instruction

Returns the change in local variables caused by this instruction.

Specified by:

getLocalChange in class Instruction

Returns:

The local variables size change.

getType

public ArithmeticShiftInstruction.ShiftType getType()

Returns:

the type

toString

public String toString()

Overrides:

toString in class Instruction