checkers.util.debug
Class TreeDebug

java.lang.Object
  extended by javax.annotation.processing.AbstractProcessor
      extended by checkers.util.debug.TreeDebug
All Implemented Interfaces:
Processor

@SupportedAnnotationTypes(value="*")
public class TreeDebug
extends AbstractProcessor

A utility class for displaying the structure of the AST of a program.

The class is actually an annotation processor; in order to use it, invoke the compiler on the source file(s) for which you wish to view the structure of the program. You may also wish to use the -proc:only javac option to stop compilation after annotation processing.

The utility will display the Tree.Kind of each node it encounters while scanning the AST, indented according to its depth in the tree. Additionally, the names of identifiers and member selection trees are displayed (since these names are not tree nodes and therefore not directly visited during AST traversal).


Nested Class Summary
static class TreeDebug.Visitor
           
 
Field Summary
 
Fields inherited from class javax.annotation.processing.AbstractProcessor
processingEnv
 
Constructor Summary
TreeDebug()
           
 
Method Summary
protected  TreeDebug.Visitor createSourceVisitor(CompilationUnitTree root)
           
 boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv)
           
 
Methods inherited from class javax.annotation.processing.AbstractProcessor
getCompletions, getSupportedAnnotationTypes, getSupportedOptions, getSupportedSourceVersion, init, isInitialized
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TreeDebug

public TreeDebug()
Method Detail

createSourceVisitor

protected TreeDebug.Visitor createSourceVisitor(CompilationUnitTree root)

process

public boolean process(Set<? extends TypeElement> annotations,
                       RoundEnvironment roundEnv)
Specified by:
process in interface Processor
Specified by:
process in class AbstractProcessor