Package com.tonic.analysis.instruction

Class InvokeVirtualInstruction

java.lang.Object

com.tonic.analysis.instruction.Instruction

com.tonic.analysis.instruction.InvokeVirtualInstruction

All Implemented Interfaces:

InvokeInsn

public class InvokeVirtualInstruction
extends Instruction
implements InvokeInsn

Represents the INVOKEVIRTUAL instruction (0xB6).

Constructor Summary

Constructors

Constructor	Description
InvokeVirtualInstruction(ConstPool constPool, int opcode, int offset, int methodIndex)	Constructs an InvokeVirtualInstruction.

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.
String	getMethodDescriptor()	Returns the method descriptor.
int	getMethodIndex()
String	getMethodName()	Returns the method name.
String	getOwnerClass()	Returns the owner class name.
int	getStackChange()	Returns the change in stack size caused by this instruction.
String	resolveMethod()	Resolves and returns a string representation of the method.
String	toString()	Returns a string representation of the instruction.
void	write(DataOutputStream dos)	Writes the INVOKEVIRTUAL opcode and its operand 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

Methods inherited from interface com.tonic.analysis.instruction.InvokeInsn

isInterface, isStatic

Constructor Detail

InvokeVirtualInstruction

public InvokeVirtualInstruction(ConstPool constPool,
                                int opcode,
                                int offset,
                                int methodIndex)

Constructs an InvokeVirtualInstruction.

Parameters:

constPool - The constant pool associated with the class.

opcode - The opcode of the instruction.

offset - The bytecode offset of the instruction.

methodIndex - The constant pool index for the method reference.

Method Detail

getMethodIndex

public int getMethodIndex()

Returns:

the method index

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

Writes the INVOKEVIRTUAL opcode and its operand 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()

Returns the change in stack size caused by this instruction.

Specified by:

getStackChange in class Instruction

Returns:

The stack size change (depends on method signature).

getLocalChange

public int getLocalChange()

Returns the change in local variables caused by this instruction.

Specified by:

getLocalChange in class Instruction

Returns:

The local variables size change (none).

resolveMethod

public String resolveMethod()

Resolves and returns a string representation of the method.

Returns:

The method as a string.

toString

public String toString()

Returns a string representation of the instruction.

Overrides:

toString in class Instruction

Returns:

The mnemonic, method index, and resolved method.

getMethodName

public String getMethodName()

Returns the method name.

Specified by:

getMethodName in interface InvokeInsn

Returns:

The method name.

getMethodDescriptor

public String getMethodDescriptor()

Returns the method descriptor.

Specified by:

getMethodDescriptor in interface InvokeInsn

Returns:

The method descriptor.

getOwnerClass

public String getOwnerClass()

Returns the owner class name.

Specified by:

getOwnerClass in interface InvokeInsn

Returns:

The owner class internal name.