Package com.tonic.analysis.instruction

Class InvokeDynamicInstruction

java.lang.Object

com.tonic.analysis.instruction.Instruction

com.tonic.analysis.instruction.InvokeDynamicInstruction

public class InvokeDynamicInstruction
extends Instruction

Represents the INVOKEDYNAMIC instruction (0xBA).

Constructor Summary

Constructors

Constructor	Description
InvokeDynamicInstruction(ConstPool constPool, int opcode, int offset, int cpIndex)	Constructs an InvokeDynamicInstruction.

Method Summary

Modifier and Type	Method	Description
void	accept(AbstractBytecodeVisitor visitor)	Accepts a visitor for bytecode analysis.
int	getBootstrapMethodAttrIndex()	Gets the bootstrap method attribute index from the InvokeDynamicItem.
int	getCpIndex()
int	getLocalChange()	Returns the change in local variables caused by this instruction.
int	getNameAndTypeIndex()	Gets the name and type index from the InvokeDynamicItem.
int	getStackChange()	Returns the change in stack size caused by this instruction.
String	resolveMethod()	Resolves and returns a string representation of the invokedynamic method.
String	toString()	Returns a string representation of the instruction.
void	write(DataOutputStream dos)	Writes the INVOKEDYNAMIC opcode and its operands 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

InvokeDynamicInstruction

public InvokeDynamicInstruction(ConstPool constPool,
                                int opcode,
                                int offset,
                                int cpIndex)

Constructs an InvokeDynamicInstruction.

Parameters:

constPool - The constant pool associated with the class.

opcode - The opcode of the instruction.

offset - The bytecode offset of the instruction.

cpIndex - The constant pool index to CONSTANT_InvokeDynamic_info.

Method Detail

getCpIndex

public int getCpIndex()

Returns:

the cp index

getBootstrapMethodAttrIndex

public int getBootstrapMethodAttrIndex()

Gets the bootstrap method attribute index from the InvokeDynamicItem.

Returns:

The bootstrap method attribute index, or -1 if invalid.

getNameAndTypeIndex

public int getNameAndTypeIndex()

Gets the name and type index from the InvokeDynamicItem.

Returns:

The name and type index, or -1 if invalid.

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 INVOKEDYNAMIC opcode and its operands 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 invokedynamic method.

Returns:

The invokedynamic method as a string.

toString

public String toString()

Returns a string representation of the instruction.

Overrides:

toString in class Instruction

Returns:

The mnemonic, CP index, and resolved method.