org.logicalcobwebs.asm.tree
Class TreeClassAdapter

java.lang.Object
  org.logicalcobwebs.asm.ClassAdapter
      org.logicalcobwebs.asm.tree.TreeClassAdapter

All Implemented Interfaces:

ClassVisitor

public class TreeClassAdapter
extends ClassAdapter

A ClassAdapter that constructs a tree representation of the classes it vists. Each visitXXX method of this class constructs an XXXNode and adds it to the classNode node (except the visitEnd method, which just makes the cv class visitor visit the tree that has just been constructed).

In order to implement a usefull class adapter based on a tree representation of classes, one just need to override the visitEnd method with a method of the following form:

 public void visitEnd () {
   // ...
   // code to modify the classNode tree, can be arbitrary complex
   // ...
   // makes the cv visitor visit this modified class:
   classNode.accept(cv);
 }
 

Field Summary

ClassNode

classNode A tree representation of the class that is being visited by this visitor.

Fields inherited from class org.logicalcobwebs.asm.ClassAdapter

cv

Constructor Summary

TreeClassAdapter(ClassVisitor cv)
Constructs a new TreeClassAdapter object.

Method Summary

void	visit(int access, java.lang.String name, java.lang.String superName, java.lang.String[] interfaces, java.lang.String sourceFile) Visits the header of the class.
void	visitAttribute(Attribute attr) Visits a non standard attribute of the class.
void	visitEnd() Visits the end of the class.
void	visitField(int access, java.lang.String name, java.lang.String desc, java.lang.Object value, Attribute attrs) Visits a field of the class.
void	visitInnerClass(java.lang.String name, java.lang.String outerName, java.lang.String innerName, int access) Visits information about an inner class.
CodeVisitor	visitMethod(int access, java.lang.String name, java.lang.String desc, java.lang.String[] exceptions, Attribute attrs) Visits a method of the class.

Methods inherited from class java.lang.Object

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

Field Detail

classNode

public ClassNode classNode

A tree representation of the class that is being visited by this visitor.

Constructor Detail

TreeClassAdapter

public TreeClassAdapter(ClassVisitor cv)

Constructs a new TreeClassAdapter object.

Parameters:

cv - the class visitor to which this adapter must delegate calls.

Method Detail

visit

public void visit(int access,
                  java.lang.String name,
                  java.lang.String superName,
                  java.lang.String[] interfaces,
                  java.lang.String sourceFile)

Description copied from interface: ClassVisitor

Visits the header of the class.

Specified by:

visit in interface ClassVisitor

Overrides:

visit in class ClassAdapter

Parameters:

access - the class's access flags (see Constants). This parameter also indicates if the class is deprecated.

name - the internal name of the class (see getInternalName).

superName - the internal of name of the super class (see getInternalName). For interfaces, the super class is Object. May be null, but only for the java.lang.Object class.

interfaces - the internal names of the class's interfaces (see getInternalName). May be null.

sourceFile - the name of the source file from which this class was compiled. May be null.

visitInnerClass

public void visitInnerClass(java.lang.String name,
                            java.lang.String outerName,
                            java.lang.String innerName,
                            int access)

Description copied from interface: ClassVisitor

Visits information about an inner class. This inner class is not necessarily a member of the class being visited.

Specified by:

visitInnerClass in interface ClassVisitor

Overrides:

visitInnerClass in class ClassAdapter

Parameters:

name - the internal name of an inner class (see getInternalName).

outerName - the internal name of the class to which the inner class belongs (see getInternalName). May be null.

innerName - the (simple) name of the inner class inside its enclosing class. May be null for anonymous inner classes.

access - the access flags of the inner class as originally declared in the enclosing class.

visitField

public void visitField(int access,
                       java.lang.String name,
                       java.lang.String desc,
                       java.lang.Object value,
                       Attribute attrs)

Description copied from interface: ClassVisitor

Visits a field of the class.

Specified by:

visitField in interface ClassVisitor

Overrides:

visitField in class ClassAdapter

Parameters:

access - the field's access flags (see Constants). This parameter also indicates if the field is synthetic and/or deprecated.

name - the field's name.

desc - the field's descriptor (see Type).

value - the 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. 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.

attrs - the non standard method attributes, linked together by their next field. May be null.

visitMethod

public CodeVisitor visitMethod(int access,
                               java.lang.String name,
                               java.lang.String desc,
                               java.lang.String[] exceptions,
                               Attribute attrs)

Description copied from interface: ClassVisitor

Visits a method of the class. This method must return a new CodeVisitor instance (or null) each time it is called, i.e., it should not return a previously returned visitor.

Specified by:

visitMethod in interface ClassVisitor

Overrides:

visitMethod in class ClassAdapter

Parameters:

access - the method's access flags (see Constants). This parameter also indicates if the method is synthetic and/or deprecated.

name - the method's name.

desc - the method's descriptor (see Type).

exceptions - the internal names of the method's exception classes (see getInternalName). May be null.

attrs - the non standard method attributes, linked together by their next field. May be null.

Returns:

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.

visitAttribute

public void visitAttribute(Attribute attr)

Description copied from interface: ClassVisitor

Visits a non standard attribute of the class. This method must visit only the first attribute in the given attribute list.

Specified by:

visitAttribute in interface ClassVisitor

Overrides:

visitAttribute in class ClassAdapter

Parameters:

attr - a non standard class attribute. Must not be null.

visitEnd

public void visitEnd()

Description copied from interface: ClassVisitor

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.

Specified by:

visitEnd in interface ClassVisitor

Overrides:

visitEnd in class ClassAdapter