org.objectweb.asm.util

Class CheckClassAdapter

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.
static void
verify(ClassReader cr, boolean dump, PrintWriter pw)
Checks a given class
void
visit(int version, int access, String name, String signature, String superName, String[] interfaces)
AnnotationVisitor
visitAnnotation(String desc, boolean visible)
void
visitAttribute(Attribute attr)
void
visitEnd()
FieldVisitor
visitField(int access, String name, String desc, String signature, Object value)
void
visitInnerClass(String name, String outerName, String innerName, int access)
MethodVisitor
visitMethod(int access, String name, String desc, String signature, String[] exceptions)
void
visitOuterClass(String owner, String name, String desc)
void
visitSource(String file, String debug)

Methods inherited from class org.objectweb.asm.ClassAdapter

visit, visitAnnotation, visitAttribute, visitEnd, visitField, visitInnerClass, visitMethod, visitOuterClass, visitSource

Constructor Details

CheckClassAdapter

public CheckClassAdapter(ClassVisitor cv)
Constructs a new CheckClassAdapter.
Parameters:
cv - the class visitor to which this adapter must delegate calls.

Method Details

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.

verify

public static void verify(ClassReader cr,
                          boolean dump,
                          PrintWriter pw)
Checks a given class
Parameters:
cr - a ClassReader that contains bytecode for the analysis.
dump - true if bytecode should be printed out not only when errors are found.
pw - write where results going to be printed

visit

public void visit(int version,
                  int access,
                  String name,
                  String signature,
                  String superName,
                  String[] interfaces)
Specified by:
visit in interface ClassVisitor
Overrides:
visit in interface ClassAdapter

visitAnnotation

public AnnotationVisitor visitAnnotation(String desc,
                                         boolean visible)
Specified by:
visitAnnotation in interface ClassVisitor
Overrides:
visitAnnotation in interface ClassAdapter

visitAttribute

public void visitAttribute(Attribute attr)
Specified by:
visitAttribute in interface ClassVisitor
Overrides:
visitAttribute in interface ClassAdapter

visitEnd

public void visitEnd()
Specified by:
visitEnd in interface ClassVisitor
Overrides:
visitEnd in interface ClassAdapter

visitField

public FieldVisitor visitField(int access,
                               String name,
                               String desc,
                               String signature,
                               Object value)
Specified by:
visitField in interface ClassVisitor
Overrides:
visitField in interface ClassAdapter

visitInnerClass

public void visitInnerClass(String name,
                            String outerName,
                            String innerName,
                            int access)
Specified by:
visitInnerClass in interface ClassVisitor
Overrides:
visitInnerClass in interface ClassAdapter

visitMethod

public MethodVisitor visitMethod(int access,
                                 String name,
                                 String desc,
                                 String signature,
                                 String[] exceptions)
Specified by:
visitMethod in interface ClassVisitor
Overrides:
visitMethod in interface ClassAdapter

visitOuterClass

public void visitOuterClass(String owner,
                            String name,
                            String desc)
Specified by:
visitOuterClass in interface ClassVisitor
Overrides:
visitOuterClass in interface ClassAdapter

visitSource

public void visitSource(String file,
                        String debug)
Specified by:
visitSource in interface ClassVisitor
Overrides:
visitSource in interface ClassAdapter