net.bytebuddy.dynamic.scaffold

Class TypeWriter.Default.ForInlining.WithFullProcessing.RedefinitionClassVisitor

java.lang.Object

org.objectweb.asm.ClassVisitor

net.bytebuddy.utility.visitor.MetadataAwareClassVisitor

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

Enclosing class:

TypeWriter.Default.ForInlining.WithFullProcessing<V>

protected class TypeWriter.Default.ForInlining.WithFullProcessing.RedefinitionClassVisitor
extends MetadataAwareClassVisitor

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.WithFullProcessing.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.WithFullProcessing.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.WithFullProcessing.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.

Field Summary

Fields

Modifier and Type	Field and Description
private TypeWriter.Default.ForInlining.ContextRegistry	contextRegistry A context registry to register the lazily created implementation context to.
private java.util.LinkedHashMap<java.lang.String,FieldDescription>	declarableFields A mapping of fields to write by their names.
private java.util.LinkedHashMap<java.lang.String,MethodDescription>	declarableMethods A mapping of methods to write by a concatenation of internal name and descriptor.
private java.util.LinkedHashMap<java.lang.String,TypeDescription>	declaredTypes A mapping of the internal names of all declared types to their description.
private Implementation.Context.ExtractableView	implementationContext The implementation context for this class creation or null if it was not yet created.
private TypeWriter.Default.ForInlining.WithFullProcessing.InitializationHandler	initializationHandler The initialization handler to use or null if the handler was not yet initialized.
private TypeWriter.MethodPool	methodPool The method pool to use or null if the pool was not yet initialized.
private java.util.Set<java.lang.String>	nestMembers A set of internal names of all nest members not yet defined by this type.
private int	readerFlags The reader flags being used.
private boolean	retainDeprecationModifiers true if the modifiers for deprecation should be retained.
private TypeInitializer	typeInitializer The type initializer to apply.
private int	writerFlags The writer flags being used.

Fields inherited from class org.objectweb.asm.ClassVisitor

api, cv

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
protected void	onAfterAttributes() Invoked if the attribute visitation is about to complete.
protected void	onNestHost() Invoked if the nest host was not visited.
protected void	onOuterType() Invoked if the outer class was not visited.
protected org.objectweb.asm.AnnotationVisitor	onVisitAnnotation(java.lang.String descriptor, boolean visible) An order-sensitive invocation of ClassVisitor.visitAnnotation(String, boolean).
protected void	onVisitEnd() An order-sensitive invocation of ClassVisitor.visitEnd().
protected org.objectweb.asm.FieldVisitor	onVisitField(int modifiers, java.lang.String internalName, java.lang.String descriptor, java.lang.String genericSignature, java.lang.Object defaultValue) An order-sensitive invocation of ClassVisitor.visitField(int, String, String, String, Object).
protected void	onVisitInnerClass(java.lang.String internalName, java.lang.String outerName, java.lang.String innerName, int modifiers) An order-sensitive invocation of ClassVisitor.visitInnerClass(String, String, String, int).
protected org.objectweb.asm.MethodVisitor	onVisitMethod(int modifiers, java.lang.String internalName, java.lang.String descriptor, java.lang.String genericSignature, java.lang.String[] exceptionName) An order-sensitive invocation of ClassVisitor.visitMethod(int, String, String, String, String[]).
protected void	onVisitNestHost(java.lang.String nestHost) An order-sensitive invocation of ClassVisitor.visitNestHost(String).
protected void	onVisitNestMember(java.lang.String nestMember) An order-sensitive invocation of ClassVisitor.visitNestMember(String).
protected void	onVisitOuterClass(java.lang.String owner, java.lang.String name, java.lang.String descriptor) An order-sensitive invocation of ClassVisitor.visitOuterClass(String, String, String).
protected org.objectweb.asm.AnnotationVisitor	onVisitTypeAnnotation(int typeReference, org.objectweb.asm.TypePath typePath, java.lang.String descriptor, boolean visible) An order-sensitive invocation of ClassVisitor.visitTypeAnnotation(int, TypePath, String, boolean).
protected org.objectweb.asm.MethodVisitor	redefine(MethodDescription methodDescription, boolean abstractOrigin, int modifiers, java.lang.String genericSignature) Redefines a given method if this is required by looking up a potential implementation from the TypeWriter.MethodPool.
protected org.objectweb.asm.FieldVisitor	redefine(TypeWriter.FieldPool.Record record, java.lang.Object defaultValue, int modifiers, java.lang.String genericSignature) Redefines a field using the given explicit field pool record and default value.
private int	resolveDeprecationModifiers(int modifiers) Returns Opcodes.ACC_DEPRECATED if the current class file version only represents deprecated methods using modifiers that are not exposed in the type description API what is true for class files before Java 5 and if the supplied modifiers indicate deprecation.
void	visit(int classFileVersionNumber, int modifiers, java.lang.String internalName, java.lang.String genericSignature, java.lang.String superClassInternalName, java.lang.String[] interfaceTypeInternalName)

Methods inherited from class net.bytebuddy.utility.visitor.MetadataAwareClassVisitor

onVisitAttribute, visitAnnotation, visitAttribute, visitEnd, visitField, visitInnerClass, visitMethod, visitNestHost, visitNestMember, visitOuterClass, visitTypeAnnotation

Methods inherited from class org.objectweb.asm.ClassVisitor

visitModule, visitSource

Methods inherited from class java.lang.Object

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

Field Detail

typeInitializer

private final TypeInitializer typeInitializer

The type initializer to apply.

contextRegistry

private final TypeWriter.Default.ForInlining.ContextRegistry contextRegistry

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

writerFlags

private final int writerFlags

The writer flags being used.

readerFlags

private final int readerFlags

The reader flags being used.

declarableFields

private final java.util.LinkedHashMap<java.lang.String,FieldDescription> declarableFields

A mapping of fields to write by their names.

declarableMethods

private final java.util.LinkedHashMap<java.lang.String,MethodDescription> declarableMethods

A mapping of methods to write by a concatenation of internal name and descriptor.

nestMembers

private final java.util.Set<java.lang.String> nestMembers

A set of internal names of all nest members not yet defined by this type. If this type is not a nest host, this set is empty.

declaredTypes

private final java.util.LinkedHashMap<java.lang.String,TypeDescription> declaredTypes

A mapping of the internal names of all declared types to their description.

methodPool

private TypeWriter.MethodPool methodPool

The method pool to use or null if the pool was not yet initialized.

initializationHandler

private TypeWriter.Default.ForInlining.WithFullProcessing.InitializationHandler initializationHandler

The initialization handler to use or null if the handler was not yet initialized.

implementationContext

private Implementation.Context.ExtractableView implementationContext

The implementation context for this class creation or null if it was not yet created.

retainDeprecationModifiers

private boolean retainDeprecationModifiers

true if the modifiers for deprecation should be retained.

Constructor Detail

RedefinitionClassVisitor

protected RedefinitionClassVisitor(org.objectweb.asm.ClassVisitor classVisitor,
                                   TypeInitializer typeInitializer,
                                   TypeWriter.Default.ForInlining.ContextRegistry contextRegistry,
                                   int writerFlags,
                                   int readerFlags)

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.

writerFlags - The writer flags being used.

readerFlags - The reader flags being used.

Method Detail

visit

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

Overrides:

visit in class org.objectweb.asm.ClassVisitor

onVisitNestHost

protected void onVisitNestHost(java.lang.String nestHost)

Description copied from class: MetadataAwareClassVisitor

An order-sensitive invocation of ClassVisitor.visitNestHost(String).

Overrides:

onVisitNestHost in class MetadataAwareClassVisitor

Parameters:

nestHost - The internal name of the nest host.

onNestHost

protected void onNestHost()

Description copied from class: MetadataAwareClassVisitor

Invoked if the nest host was not visited.

Specified by:

onNestHost in class MetadataAwareClassVisitor

onVisitOuterClass

protected void onVisitOuterClass(java.lang.String owner,
                                 java.lang.String name,
                                 java.lang.String descriptor)

Description copied from class: MetadataAwareClassVisitor

An order-sensitive invocation of ClassVisitor.visitOuterClass(String, String, String).

Overrides:

onVisitOuterClass in class MetadataAwareClassVisitor

Parameters:

owner - The outer class's internal name.

name - The outer method's name or null if it does not exist.

descriptor - The outer method's descriptor or null if it does not exist.

onOuterType

protected void onOuterType()

Description copied from class: MetadataAwareClassVisitor

Invoked if the outer class was not visited.

Specified by:

onOuterType in class MetadataAwareClassVisitor

onAfterAttributes

protected void onAfterAttributes()

Description copied from class: MetadataAwareClassVisitor

Invoked if the attribute visitation is about to complete.

Specified by:

onAfterAttributes in class MetadataAwareClassVisitor

onVisitTypeAnnotation

protected org.objectweb.asm.AnnotationVisitor onVisitTypeAnnotation(int typeReference,
                                                                    org.objectweb.asm.TypePath typePath,
                                                                    java.lang.String descriptor,
                                                                    boolean visible)

Description copied from class: MetadataAwareClassVisitor

An order-sensitive invocation of ClassVisitor.visitTypeAnnotation(int, TypePath, String, boolean).

Overrides:

onVisitTypeAnnotation in class MetadataAwareClassVisitor

Parameters:

typeReference - The type reference of the type annotation.

typePath - The type path of the type annotation.

descriptor - The descriptor of the annotation type.

visible - true if the annotation is visible at runtime.

Returns:

An annotation visitor or null if the annotation should be ignored.

onVisitAnnotation

protected org.objectweb.asm.AnnotationVisitor onVisitAnnotation(java.lang.String descriptor,
                                                                boolean visible)

Description copied from class: MetadataAwareClassVisitor

An order-sensitive invocation of ClassVisitor.visitAnnotation(String, boolean).

Overrides:

onVisitAnnotation in class MetadataAwareClassVisitor

Parameters:

descriptor - The annotation type's descriptor.

visible - true if the annotation is visible at runtime.

Returns:

An annotation visitor or null if the annotation should be ignored.

onVisitField

protected org.objectweb.asm.FieldVisitor onVisitField(int modifiers,
                                                      java.lang.String internalName,
                                                      java.lang.String descriptor,
                                                      java.lang.String genericSignature,
                                                      java.lang.Object defaultValue)

Description copied from class: MetadataAwareClassVisitor

An order-sensitive invocation of ClassVisitor.visitField(int, String, String, String, Object).

Overrides:

onVisitField in class MetadataAwareClassVisitor

Parameters:

modifiers - The field's modifiers.

internalName - The field's internal name.

descriptor - The field type's descriptor.

genericSignature - The field's generic signature or null if the field is not generic.

defaultValue - The field's default value or null if no such value exists.

Returns:

A field visitor to visit the field or null to ignore it.

redefine

protected org.objectweb.asm.FieldVisitor redefine(TypeWriter.FieldPool.Record record,
                                                  java.lang.Object defaultValue,
                                                  int modifiers,
                                                  java.lang.String genericSignature)

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.

modifiers - The original modifiers of the transformed field.

genericSignature - The field's original generic signature which can be null.

Returns:

A field visitor for visiting the existing field definition.

onVisitMethod

protected org.objectweb.asm.MethodVisitor onVisitMethod(int modifiers,
                                                        java.lang.String internalName,
                                                        java.lang.String descriptor,
                                                        java.lang.String genericSignature,
                                                        java.lang.String[] exceptionName)

Description copied from class: MetadataAwareClassVisitor

An order-sensitive invocation of ClassVisitor.visitMethod(int, String, String, String, String[]).

Overrides:

onVisitMethod in class MetadataAwareClassVisitor

Parameters:

modifiers - The method's modifiers.

internalName - The method's internal name.

descriptor - The field type's descriptor.

genericSignature - The method's generic signature or null if the method is not generic.

exceptionName - The method's declared exceptions or null if no exceptions are declared.

Returns:

A method visitor to visit the method or null to ignore it.

redefine

protected org.objectweb.asm.MethodVisitor redefine(MethodDescription methodDescription,
                                                   boolean abstractOrigin,
                                                   int modifiers,
                                                   java.lang.String genericSignature)

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.

modifiers - The original modifiers of the transformed method.

genericSignature - The method's original generic signature which can be null.

Returns:

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

onVisitInnerClass

protected void onVisitInnerClass(java.lang.String internalName,
                                 java.lang.String outerName,
                                 java.lang.String innerName,
                                 int modifiers)

Description copied from class: MetadataAwareClassVisitor

An order-sensitive invocation of ClassVisitor.visitInnerClass(String, String, String, int).

Overrides:

onVisitInnerClass in class MetadataAwareClassVisitor

Parameters:

internalName - The internal name of the inner class.

outerName - The internal name of the outer class.

innerName - The inner class's simple name or null for an anonymous class.

modifiers - The inner class's source code modifiers.

onVisitNestMember

protected void onVisitNestMember(java.lang.String nestMember)

Description copied from class: MetadataAwareClassVisitor

An order-sensitive invocation of ClassVisitor.visitNestMember(String).

Overrides:

onVisitNestMember in class MetadataAwareClassVisitor

Parameters:

nestMember - The internal name of the nest member.

onVisitEnd

protected void onVisitEnd()

Description copied from class: MetadataAwareClassVisitor

An order-sensitive invocation of ClassVisitor.visitEnd().

Overrides:

onVisitEnd in class MetadataAwareClassVisitor

resolveDeprecationModifiers

private int resolveDeprecationModifiers(int modifiers)

Returns Opcodes.ACC_DEPRECATED if the current class file version only represents deprecated methods using modifiers that are not exposed in the type description API what is true for class files before Java 5 and if the supplied modifiers indicate deprecation.

Parameters:

modifiers - The original modifiers.

Returns:

Opcodes.ACC_DEPRECATED if the supplied modifiers imply deprecation.