org.objectweb.asm.util
Class CheckClassAdapter

java.lang.Object
  org.objectweb.asm.ClassAdapter
      org.objectweb.asm.util.CheckClassAdapter

All Implemented Interfaces:

ClassVisitor

public class CheckClassAdapter

extends ClassAdapter

A ClassAdapter that checks that its methods are properly used. More precisely this class adapter checks each method call individually, based only on its arguments, but does not check the sequence of method calls. For example, the invalid sequence visitField(ACC_PUBLIC, "i", "I", null) visitField(ACC_PUBLIC, "i", "D", null) will not be detected by this class adapter.

Author:

Eric Bruneton

Field Summary

Fields inherited from class org.objectweb.asm.ClassAdapter

cv

Constructor Summary

CheckClassAdapter(ClassVisitor cv)
Constructs a new CheckClassAdapter.

Method Summary

static void	main(String[] args) Checks a given class.
void	visit(int version, int access, String name, String signature, String superName, String[] interfaces) Visits the header of the class.
AnnotationVisitor	visitAnnotation(String desc, boolean visible) Visits an annotation of the class.
void	visitAttribute(Attribute attr) Visits a non standard attribute of the class.
void	visitEnd() Visits the end of the class.
FieldVisitor	visitField(int access, String name, String desc, String signature, Object value) Visits a field of the class.
void	visitInnerClass(String name, String outerName, String innerName, int access) Visits information about an inner class.
MethodVisitor	visitMethod(int access, String name, String desc, String signature, String[] exceptions) Visits a method of the class.
void	visitOuterClass(String owner, String name, String desc) Visits the enclosing class of the class.
void	visitSource(String file, String debug) Visits the source of the class.

Methods inherited from class java.lang.Object

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

Constructor Detail

CheckClassAdapter

public CheckClassAdapter(ClassVisitor cv)

Constructs a new CheckClassAdapter.

Parameters:

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

Method Detail

main

public static void main(String[] args)
                 throws Exception

Checks a given class.

Usage: CheckClassAdapter <fully qualified class name or class file name>

Parameters:

args - the command line arguments.

Throws:

Exception - if the class cannot be found, or if an IO exception occurs.

visit

public void visit(int version,
                  int access,
                  String name,
                  String signature,
                  String superName,
                  String[] interfaces)

Description copied from interface: ClassVisitor

Visits the header of the class.

Specified by:

visit in interface ClassVisitor

Overrides:

visit in class ClassAdapter

visitSource

public void visitSource(String file,
                        String debug)

Description copied from interface: ClassVisitor

Visits the source of the class.

Specified by:

visitSource in interface ClassVisitor

Overrides:

visitSource in class ClassAdapter

visitOuterClass

public void visitOuterClass(String owner,
                            String name,
                            String desc)

Description copied from interface: ClassVisitor

Visits the enclosing class of the class. This method must be called only if the class has an enclosing class.

Specified by:

visitOuterClass in interface ClassVisitor

Overrides:

visitOuterClass in class ClassAdapter

visitInnerClass

public void visitInnerClass(String name,
                            String outerName,
                            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

visitField

public FieldVisitor visitField(int access,
                               String name,
                               String desc,
                               String signature,
                               Object value)

Description copied from interface: ClassVisitor

Visits a field of the class.

Specified by:

visitField in interface ClassVisitor

Overrides:

visitField in class ClassAdapter

visitMethod

public MethodVisitor visitMethod(int access,
                                 String name,
                                 String desc,
                                 String signature,
                                 String[] exceptions)

Description copied from interface: ClassVisitor

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.

Specified by:

visitMethod in interface ClassVisitor

Overrides:

visitMethod in class ClassAdapter

visitAnnotation

public AnnotationVisitor visitAnnotation(String desc,
                                         boolean visible)

Description copied from interface: ClassVisitor

Visits an annotation of the class.

Specified by:

visitAnnotation in interface ClassVisitor

Overrides:

visitAnnotation in class ClassAdapter

visitAttribute

public void visitAttribute(Attribute attr)

Description copied from interface: ClassVisitor

Visits a non standard attribute of the class.

Specified by:

visitAttribute in interface ClassVisitor

Overrides:

visitAttribute in class ClassAdapter

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