saker.build Documentation TaskDoc JavaDoc Packages
public abstract class ClassVisitor
A visitor to visit a Java class. The methods of this class must be called in the following order: visit [ visitSource ] [ visitModule ][ visitNestHost ][ visitPermittedSubclass ][ visitOuterClass ] ( visitAnnotation | visitTypeAnnotation | visitAttribute )* ( visitNestMember | visitInnerClass | visitRecordComponent | visitField | visitMethod )* visitEnd.
Fields
protected final int
The ASM API version implemented by this visitor.
protected ClassVisitor
The class visitor to which this visitor must delegate method calls.
Constructors
public
ClassVisitor(int api)
Constructs a new ClassVisitor.
public
ClassVisitor(int api, ClassVisitor classVisitor)
Constructs a new ClassVisitor.
Methods
public void
visit(int version, int access, String name, String signature, String superName, String[] interfaces)
Visits the header of the class.
public AnnotationVisitor
visitAnnotation(String descriptor, boolean visible)
Visits an annotation of the class.
public void
Visits a non standard attribute of the class.
public void
Visits the end of the class.
public FieldVisitor
visitField(int access, String name, String descriptor, String signature, Object value)
Visits a field of the class.
public void
visitInnerClass(String name, String outerName, String innerName, int access)
Visits information about an inner class.
public MethodVisitor
visitMethod(int access, String name, String descriptor, String signature, String[] exceptions)
Visits a method of the class.
public ModuleVisitor
visitModule(String name, int access, String version)
Visit the module corresponding to the class.
public void
Visits the nest host class of the class.
public void
Visits a member of the nest.
public void
visitOuterClass(String owner, String name, String descriptor)
Visits the enclosing class of the class.
public void
visitPermittedSubclass(String permittedSubclass)
Visits a permitted subclasses.
public RecordComponentVisitor
visitRecordComponent(String name, String descriptor, String signature)
Visits a record component of the class.
public void
visitSource(String source, String debug)
Visits the source of the class.
public AnnotationVisitor
visitTypeAnnotation(int typeRef, TypePath typePath, String descriptor, boolean visible)
Visits an annotation on a type in the class signature.
protected final int api
The ASM API version implemented by this visitor. The value of this field must be one of Opcodes.ASM4, Opcodes.ASM5, Opcodes.ASM6 or Opcodes.ASM7.
protected ClassVisitor cv
The class visitor to which this visitor must delegate method calls. May be null.
public ClassVisitor(int api)
Constructs a new ClassVisitor.
apithe ASM API version implemented by this visitor. Must be one of Opcodes.ASM4, Opcodes.ASM5, Opcodes.ASM6 or Opcodes.ASM7.
public ClassVisitor(int api, ClassVisitor classVisitor)
Constructs a new ClassVisitor.
apithe ASM API version implemented by this visitor. Must be one of Opcodes.ASM4, Opcodes.ASM5, Opcodes.ASM6, Opcodes.ASM7, Opcodes.ASM8 or Opcodes.ASM9.
classVisitorthe class visitor to which this visitor must delegate method calls. May be null.
public void visit(int version, int access, String name, String signature, String superName, String[] interfaces)
Visits the header of the class.
versionthe class version. The minor version is stored in the 16 most significant bits, and the major version in the 16 least significant bits.
accessthe class's access flags (see Opcodes). This parameter also indicates if the class is deprecated Opcodes.ACC_DEPRECATED or a record Opcodes.ACC_RECORD.
namethe internal name of the class (see Type.getInternalName()).
signaturethe signature of this class. May be null if the class is not a generic one, and does not extend or implement generic classes or interfaces.
superNamethe internal of name of the super class (see Type.getInternalName()). For interfaces, the super class is Object. May be null, but only for the Object class.
interfacesthe internal names of the class's interfaces (see Type.getInternalName()). May be null.
public AnnotationVisitor visitAnnotation(String descriptor, boolean visible)
Visits an annotation of the class.
descriptorthe class descriptor of the annotation class.
visibletrue if the annotation is visible at runtime.
a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.
public void visitAttribute(Attribute attribute)
Visits a non standard attribute of the class.
attributean attribute.
public void visitEnd()
Visits the end of the class. This method, which is the last one to be called, is used to inform the visitor that all the fields and methods of the class have been visited.
public FieldVisitor visitField(int access, String name, String descriptor, String signature, Object value)
Visits a field of the class.
accessthe field's access flags (see Opcodes). This parameter also indicates if the field is synthetic and/or deprecated.
namethe field's name.
descriptorthe field's descriptor (see Type).
signaturethe field's signature. May be null if the field's type does not use generic types.
valuethe field's initial value. This parameter, which may be null if the field does not have an initial value, must be an Integer, a Float, a Long, a Double or a String (for int, float, long or String fields respectively). This parameter is only used for static fields. Its value is ignored for non static fields, which must be initialized through bytecode instructions in constructors or methods.
a visitor to visit field annotations and attributes, or null if this class visitor is not interested in visiting these annotations and attributes.
public void visitInnerClass(String name, String outerName, String innerName, int access)
Visits information about an inner class. This inner class is not necessarily a member of the class being visited.
namethe internal name of an inner class (see Type.getInternalName()).
outerNamethe internal name of the class to which the inner class belongs (see Type.getInternalName()). May be null for not member classes.
innerNamethe (simple) name of the inner class inside its enclosing class. May be null for anonymous inner classes.
accessthe access flags of the inner class as originally declared in the enclosing class.
public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions)
Visits a method of the class. This method must return a new MethodVisitor instance (or null) each time it is called, i.e., it should not return a previously returned visitor.
accessthe method's access flags (see Opcodes). This parameter also indicates if the method is synthetic and/or deprecated.
namethe method's name.
descriptorthe method's descriptor (see Type).
signaturethe method's signature. May be null if the method parameters, return type and exceptions do not use generic types.
exceptionsthe internal names of the method's exception classes (see Type.getInternalName()). May be null.
an object to visit the byte code of the method, or null if this class visitor is not interested in visiting the code of this method.
public ModuleVisitor visitModule(String name, int access, String version)
Visit the module corresponding to the class.
namethe fully qualified name (using dots) of the module.
accessthe module access flags, among ACC_OPEN, ACC_SYNTHETIC and ACC_MANDATED.
versionthe module version, or null.
a visitor to visit the module values, or null if this visitor is not interested in visiting this module.
public void visitNestHost(String nestHost)
Visits the nest host class of the class. A nest is a set of classes of the same package that share access to their private members. One of these classes, called the host, lists the other members of the nest, which in turn should link to the host of their nest. This method must be called only once and only if the visited class is a non-host member of a nest. A class is implicitly its own nest, so it's invalid to call this method with the visited class name as argument.
nestHostthe internal name of the host class of the nest.
public void visitNestMember(String nestMember)
Visits a member of the nest. A nest is a set of classes of the same package that share access to their private members. One of these classes, called the host, lists the other members of the nest, which in turn should link to the host of their nest. This method must be called only if the visited class is the host of a nest. A nest host is implicitly a member of its own nest, so it's invalid to call this method with the visited class name as argument.
nestMemberthe internal name of a nest member.
public void visitOuterClass(String owner, String name, String descriptor)
Visits the enclosing class of the class. This method must be called only if the class has an enclosing class.
ownerinternal name of the enclosing class of the class.
namethe name of the method that contains the class, or null if the class is not enclosed in a method of its enclosing class.
descriptorthe descriptor of the method that contains the class, or null if the class is not enclosed in a method of its enclosing class.
public void visitPermittedSubclass(String permittedSubclass)
Visits a permitted subclasses. A permitted subclass is one of the allowed subclasses of the current class.
permittedSubclassthe internal name of a permitted subclass.
public RecordComponentVisitor visitRecordComponent(String name, String descriptor, String signature)
Visits a record component of the class.
namethe record component name.
descriptorthe record component descriptor (see Type).
signaturethe record component signature. May be null if the record component type does not use generic types.
a visitor to visit this record component annotations and attributes, or null if this class visitor is not interested in visiting these annotations and attributes.
public void visitSource(String source, String debug)
Visits the source of the class.
sourcethe name of the source file from which the class was compiled. May be null.
debugadditional debug information to compute the correspondence between source and compiled elements of the class. May be null.
public AnnotationVisitor visitTypeAnnotation(int typeRef, TypePath typePath, String descriptor, boolean visible)
Visits an annotation on a type in the class signature.
typeRefa reference to the annotated type. The sort of this type reference must be TypeReference.CLASS_TYPE_PARAMETER, TypeReference.CLASS_TYPE_PARAMETER_BOUND or TypeReference.CLASS_EXTENDS. See TypeReference.
typePaththe path to the annotated type argument, wildcard bound, array element type, or static inner type within 'typeRef'. May be null if the annotation targets 'typeRef' as a whole.
descriptorthe class descriptor of the annotation class.
visibletrue if the annotation is visible at runtime.
a visitor to visit the annotation values, or null if this visitor is not interested in visiting this annotation.