Package org.jboss.byteman.agent.adapter

Class ExitCheckAdapter.ExitCheckMethodAdapter

java.lang.Object

org.objectweb.asm.MethodVisitor

org.jboss.byteman.agent.adapter.RuleMethodAdapter

org.jboss.byteman.agent.adapter.RuleCheckMethodAdapter

org.jboss.byteman.agent.adapter.ExitCheckAdapter.ExitCheckMethodAdapter

Enclosing class:

ExitCheckAdapter

private class ExitCheckAdapter.ExitCheckMethodAdapter
extends RuleCheckMethodAdapter

a method visitor used to add a rule event trigger call to a method

Nested Class Summary

Nested classes/interfaces inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter

RuleMethodAdapter.LocalVar

Field Summary

Fields

Modifier and Type	Field	Description
private int	access
private String	descriptor
private Vector<org.objectweb.asm.Label>	endLabels
private String[]	exceptions
private boolean	inhibit
private String	name
private String	signature
private Vector<org.objectweb.asm.Label>	startLabels

Fields inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter

localVarsByName, rule, transformContext

Fields inherited from class org.objectweb.asm.MethodVisitor

api, mv

Constructor Summary

Constructors

Constructor	Description
ExitCheckMethodAdapter(org.objectweb.asm.MethodVisitor mv, TransformContext transformContext, int access, String name, String descriptor, String signature, String[] exceptions)

Method Summary

Modifier and Type	Method	Description
void	visitInsn(int opcode)	we need to identify return instructions which are inserted because of other rules
void	visitLabel(org.objectweb.asm.Label label)	each time we visit a label we set or clear flag inhibit depending upon whether the label identifies an EarlyReturnException block or not in order to avoid inserting triggers for returns added by our own exception handling code
void	visitTryCatchBlock(org.objectweb.asm.Label start, org.objectweb.asm.Label end, org.objectweb.asm.Label handler, String type)	Visits a try catch block and records the label of the handler start if the exception type EarlyReturnException so we can later avoid inserting a rule trigger.

Methods inherited from class org.jboss.byteman.agent.adapter.RuleCheckMethodAdapter

checkBindings, getNewTypeParamDescriptor, getReturnBindingType, isTriggerPoint, setTriggerPoint, visitEnd

Methods inherited from class org.jboss.byteman.agent.adapter.RuleMethodAdapter

getTriggerClassName, lookup, visitLocalVariable

Methods inherited from class org.objectweb.asm.MethodVisitor

getDelegate, visitAnnotableParameterCount, visitAnnotation, visitAnnotationDefault, visitAttribute, visitCode, visitFieldInsn, visitFrame, visitIincInsn, visitInsnAnnotation, visitIntInsn, visitInvokeDynamicInsn, visitJumpInsn, visitLdcInsn, visitLineNumber, visitLocalVariableAnnotation, visitLookupSwitchInsn, visitMaxs, visitMethodInsn, visitMethodInsn, visitMultiANewArrayInsn, visitParameter, visitParameterAnnotation, visitTableSwitchInsn, visitTryCatchAnnotation, visitTypeAnnotation, visitTypeInsn, visitVarInsn

Methods inherited from class java.lang.Object

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

Field Details

access

private int access

name

private String name

descriptor

private String descriptor

signature

private String signature

exceptions

private String[] exceptions

startLabels

private Vector<org.objectweb.asm.Label> startLabels

endLabels

private Vector<org.objectweb.asm.Label> endLabels

inhibit

private boolean inhibit

Constructor Details

ExitCheckMethodAdapter

ExitCheckMethodAdapter(org.objectweb.asm.MethodVisitor mv,
 TransformContext transformContext,
 int access,
 String name,
 String descriptor,
 String signature,
 String[] exceptions)

Method Details

visitTryCatchBlock

public void visitTryCatchBlock(org.objectweb.asm.Label start,
 org.objectweb.asm.Label end,
 org.objectweb.asm.Label handler,
 String type)

Visits a try catch block and records the label of the handler start if the exception type EarlyReturnException so we can later avoid inserting a rule trigger.

Overrides:

visitTryCatchBlock in class org.objectweb.asm.MethodVisitor

Parameters:

start - beginning of the exception handler's scope (inclusive).

end - end of the exception handler's scope (exclusive).

handler - beginning of the exception handler's code.

type - internal name of the type of exceptions handled by the handler, or null to catch any exceptions (for "finally" blocks).

Throws:

IllegalArgumentException - if one of the labels has already been visited by this visitor (by the visitLabel method).

visitLabel

public void visitLabel(org.objectweb.asm.Label label)

each time we visit a label we set or clear flag inhibit depending upon whether the label identifies an EarlyReturnException block or not in order to avoid inserting triggers for returns added by our own exception handling code

Overrides:

visitLabel in class org.objectweb.asm.MethodVisitor

Parameters:

label -

visitInsn

public void visitInsn(int opcode)

we need to identify return instructions which are inserted because of other rules

Overrides:

visitInsn in class org.objectweb.asm.MethodVisitor

Parameters:

opcode -