Package org.checkerframework.common.util.debug

Class TreeDebug

java.lang.Object

javax.annotation.processing.AbstractProcessor

org.checkerframework.common.util.debug.TreeDebug

All Implemented Interfaces:

Processor

@SupportedAnnotationTypes("*")
@SupportedSourceVersion(RELEASE_8)
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. (But, in general -proc:only causes type annotation processors not to be run.)

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).

See Also:

• TreePrinter

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	TreeDebug.Visitor

Field Summary

Fields inherited from class javax.annotation.processing.AbstractProcessor

processingEnv

Constructor Summary

Constructors

Constructor	Description
TreeDebug()

Method Summary

Modifier and Type	Method	Description
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 Details

TreeDebug

public TreeDebug()

Method Details

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