net.bytebuddy.dynamic.scaffold

Class TypeWriter.Default.ForInlining.RedefinitionClassVisitor

java.lang.Object

org.objectweb.asm.ClassVisitor

net.bytebuddy.dynamic.scaffold.TypeWriter.Default.ForInlining.RedefinitionClassVisitor

Enclosing class:

TypeWriter.Default.ForInlining<U>

protected class TypeWriter.Default.ForInlining.RedefinitionClassVisitor
extends ClassVisitor

A class visitor which is capable of applying a redefinition of an existing class file.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	TypeWriter.Default.ForInlining.RedefinitionClassVisitor.AttributeObtainingFieldVisitor A field visitor that obtains all attributes and annotations of a field that is found in the class file but that discards all code.
protected class	TypeWriter.Default.ForInlining.RedefinitionClassVisitor.AttributeObtainingMethodVisitor A method visitor that obtains all attributes and annotations of a method that is found in the class file but that discards all code.
protected class	TypeWriter.Default.ForInlining.RedefinitionClassVisitor.CodePreservingMethodVisitor A method visitor that preserves the code of a method in the class file by copying it into a rebased method while copying all attributes and annotations to the actual method.
protected class	TypeWriter.Default.ForInlining.RedefinitionClassVisitor.TypeInitializerInjection A code injection for the type initializer that invokes a method representing the original type initializer which is copied to a static method.

Field Summary

Fields inherited from class org.objectweb.asm.ClassVisitor

api, cv

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RedefinitionClassVisitor(ClassVisitor classVisitor, TypeInitializer typeInitializer, TypeWriter.Default.ForInlining.ContextRegistry contextRegistry) Creates a class visitor which is capable of redefining an existent class on the fly.

Method Summary

Modifier and Type	Method and Description
protected MethodVisitor	redefine(MethodDescription methodDescription, boolean abstractOrigin) Redefines a given method if this is required by looking up a potential implementation from the TypeWriter.MethodPool.
protected FieldVisitor	redefine(TypeWriter.FieldPool.Record record, Object defaultValue) Redefines a field using the given explicit field pool record and default value.
String	toString()
void	visit(int classFileVersionNumber, int modifiers, String internalName, String genericSignature, String superClassInternalName, String[] interfaceTypeInternalName)
AnnotationVisitor	visitAnnotation(String descriptor, boolean visible)
void	visitEnd()
FieldVisitor	visitField(int modifiers, String internalName, String descriptor, String genericSignature, Object defaultValue)
void	visitInnerClass(String internalName, String outerName, String innerName, int modifiers)
MethodVisitor	visitMethod(int modifiers, String internalName, String descriptor, String genericSignature, String[] exceptionTypeInternalName)
AnnotationVisitor	visitTypeAnnotation(int typeReference, TypePath typePath, String descriptor, boolean visible)

Methods inherited from class org.objectweb.asm.ClassVisitor

visitAttribute, visitOuterClass, visitSource

Methods inherited from class java.lang.Object

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

Constructor Detail

RedefinitionClassVisitor

protected RedefinitionClassVisitor(ClassVisitor classVisitor,
                                   TypeInitializer typeInitializer,
                                   TypeWriter.Default.ForInlining.ContextRegistry contextRegistry)

Creates a class visitor which is capable of redefining an existent class on the fly.

Parameters:

classVisitor - The underlying class visitor to which writes are delegated.

typeInitializer - The type initializer to apply.

contextRegistry - A context registry to register the lazily created implementation context to.

Method Detail

visit

public void visit(int classFileVersionNumber,
                  int modifiers,
                  String internalName,
                  String genericSignature,
                  String superClassInternalName,
                  String[] interfaceTypeInternalName)

Overrides:

visit in class ClassVisitor

visitInnerClass

public void visitInnerClass(String internalName,
                            String outerName,
                            String innerName,
                            int modifiers)

Overrides:

visitInnerClass in class ClassVisitor

visitTypeAnnotation

public AnnotationVisitor visitTypeAnnotation(int typeReference,
                                             TypePath typePath,
                                             String descriptor,
                                             boolean visible)

Overrides:

visitTypeAnnotation in class ClassVisitor

visitAnnotation

public AnnotationVisitor visitAnnotation(String descriptor,
                                         boolean visible)

Overrides:

visitAnnotation in class ClassVisitor

visitField

public FieldVisitor visitField(int modifiers,
                               String internalName,
                               String descriptor,
                               String genericSignature,
                               Object defaultValue)

Overrides:

visitField in class ClassVisitor

redefine

protected FieldVisitor redefine(TypeWriter.FieldPool.Record record,
                                Object defaultValue)

Redefines a field using the given explicit field pool record and default value.

Parameters:

record - The field pool value to apply during visitation of the existing field.

defaultValue - The default value to write onto the field which might be null.

Returns:

A field visitor for visiting the existing field definition.

visitMethod

public MethodVisitor visitMethod(int modifiers,
                                 String internalName,
                                 String descriptor,
                                 String genericSignature,
                                 String[] exceptionTypeInternalName)

Overrides:

visitMethod in class ClassVisitor

redefine

protected MethodVisitor redefine(MethodDescription methodDescription,
                                 boolean abstractOrigin)

Redefines a given method if this is required by looking up a potential implementation from the TypeWriter.MethodPool.

Parameters:

methodDescription - The method being considered for redefinition.

abstractOrigin - true if the original method is abstract, i.e. there is no implementation to preserve.

Returns:

A method visitor which is capable of consuming the original method.

visitEnd

public void visitEnd()

Overrides:

visitEnd in class ClassVisitor

toString

public String toString()

Overrides:

toString in class Object