Package com.tonic.analysis.execution.debug

Class AbstractInterceptor

java.lang.Object

com.tonic.analysis.execution.debug.AbstractInterceptor

All Implemented Interfaces:

InstructionInterceptor

public abstract class AbstractInterceptor
extends Object
implements InstructionInterceptor

No-op base implementation of InstructionInterceptor whose callbacks all continue execution.

Constructor Summary

Constructors

Constructor	Description
AbstractInterceptor()

Method Summary

Modifier and Type	Method	Description
void	afterInstruction(StackFrame frame, Instruction instruction)	Called after an instruction has been interpreted.
InterceptorAction	beforeInstruction(StackFrame frame, Instruction instruction)	Called just before an instruction is interpreted.
InterceptorAction	onException(StackFrame frame, ObjectInstance exception)	Called when an exception is raised in a frame.
InterceptorAction	onMethodEntry(StackFrame frame)	Called when a frame has been pushed and is about to run.
void	onMethodExit(StackFrame frame, ConcreteValue returnValue)	Called when a frame returns normally.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractInterceptor

public AbstractInterceptor()

Method Detail

beforeInstruction

public InterceptorAction beforeInstruction(StackFrame frame,
                                           Instruction instruction)

Description copied from interface: InstructionInterceptor

Called just before an instruction is interpreted.

Specified by:

beforeInstruction in interface InstructionInterceptor

Parameters:

frame - the frame about to execute

instruction - the instruction about to run

Returns:

whether the interpreter continues, pauses or aborts

afterInstruction

public void afterInstruction(StackFrame frame,
                             Instruction instruction)

Description copied from interface: InstructionInterceptor

Called after an instruction has been interpreted.

Specified by:

afterInstruction in interface InstructionInterceptor

Parameters:

frame - the frame that executed

instruction - the instruction that ran

onMethodEntry

public InterceptorAction onMethodEntry(StackFrame frame)

Description copied from interface: InstructionInterceptor

Called when a frame has been pushed and is about to run.

Specified by:

onMethodEntry in interface InstructionInterceptor

Parameters:

frame - the newly pushed frame

Returns:

whether the interpreter continues, pauses or aborts

onMethodExit

public void onMethodExit(StackFrame frame,
                         ConcreteValue returnValue)

Description copied from interface: InstructionInterceptor

Called when a frame returns normally.

Specified by:

onMethodExit in interface InstructionInterceptor

Parameters:

frame - the returning frame

returnValue - the returned value, null for a void method

onException

public InterceptorAction onException(StackFrame frame,
                                     ObjectInstance exception)

Description copied from interface: InstructionInterceptor

Called when an exception is raised in a frame.

Specified by:

onException in interface InstructionInterceptor

Parameters:

frame - the frame the exception was raised in

exception - the thrown exception instance

Returns:

whether the interpreter continues, pauses or aborts