Java Code Examples for proguard.classfile.ClassPool#classesAccept()

/**
 * Performs preverification of the given program class pool.
 */
public void execute(ClassPool programClassPool)
{
    // Clean up any old visitor info.
    programClassPool.classesAccept(new ClassCleaner());

    // Preverify all methods.
    ClassVisitor preverifier =
        new AllMethodVisitor(
        new AllAttributeVisitor(
        new CodePreverifier(configuration.microEdition)));

    // In Java Standard Edition, only class files from Java 6 or higher
    // should be preverified.
    if (!configuration.microEdition)
    {
        preverifier =
            new ClassVersionFilter(ClassConstants.INTERNAL_CLASS_VERSION_1_6,
                                   Integer.MAX_VALUE,
                                   preverifier);
    }

    programClassPool.classesAccept(preverifier);
}
 

/**
 * Performs subroutine inlining of the given program class pool.
 */
public void execute(ClassPool programClassPool)
{
    // Clean up any old visitor info.
    programClassPool.classesAccept(new ClassCleaner());

    // Inline all subroutines.
    ClassVisitor inliner =
        new AllMethodVisitor(
        new AllAttributeVisitor(
        new CodeSubroutineInliner()));

    // In Java Standard Edition, only class files from Java 6 or higher
    // should be preverified.
    if (!configuration.microEdition)
    {
        inliner =
            new ClassVersionFilter(ClassConstants.INTERNAL_CLASS_VERSION_1_6,
                                   Integer.MAX_VALUE,
                                   inliner);
    }

    programClassPool.classesAccept(inliner);
}
 

/**
 * Sets the target version on classes in the given program class pool.
 */
public void execute(ClassPool programClassPool) throws IOException
{
    Set newerClassVersions = configuration.warn != null ? null : new HashSet();

    programClassPool.classesAccept(new ClassVersionSetter(configuration.targetClassVersion,
                                                          newerClassVersions));

    if (newerClassVersions != null &&
        newerClassVersions.size() > 0)
    {
        System.err.print("Warning: some classes have more recent versions (");

        Iterator iterator = newerClassVersions.iterator();
        while (iterator.hasNext())
        {
            Integer classVersion = (Integer)iterator.next();
            System.err.print(ClassUtil.externalClassVersion(classVersion.intValue()));

            if (iterator.hasNext())
            {
                System.err.print(",");
            }
        }

        System.err.println(")");
        System.err.println("         than the target version ("+ClassUtil.externalClassVersion(configuration.targetClassVersion)+").");

        if (!configuration.ignoreWarnings)
        {
            System.err.println("         If you are sure this is not a problem,");
            System.err.println("         you could try your luck using the '-ignorewarnings' option.");
            throw new IOException("Please correct the above warnings first.");
        }
    }
}
 

/**
 * Sets the target version on classes in the given program class pool.
 */
public void execute(ClassPool programClassPool) throws IOException
{
    Set newerClassVersions = configuration.warn != null ? null : new HashSet();

    programClassPool.classesAccept(new ClassVersionSetter(configuration.targetClassVersion,
                                                          newerClassVersions));

    if (newerClassVersions != null &&
        newerClassVersions.size() > 0)
    {
        System.err.print("Warning: some classes have more recent versions (");

        Iterator iterator = newerClassVersions.iterator();
        while (iterator.hasNext())
        {
            Integer classVersion = (Integer)iterator.next();
            System.err.print(ClassUtil.externalClassVersion(classVersion.intValue()));

            if (iterator.hasNext())
            {
                System.err.print(",");
            }
        }

        System.err.println(")");
        System.err.println("         than the target version ("+ClassUtil.externalClassVersion(configuration.targetClassVersion)+").");

        if (!configuration.ignoreWarnings)
        {
            System.err.println("         If you are sure this is not a problem,");
            System.err.println("         you could try your luck using the '-ignorewarnings' option.");
            throw new IOException("Please correct the above warnings first.");
        }
    }
}
 

/**
 * Prints out the seeds for the classes in the given program class pool.
 * @param configuration the configuration containing the keep options.
 * @throws IOException if an IO error occurs while writing the configuration.
 */
public void write(Configuration configuration,
                  ClassPool     programClassPool,
                  ClassPool     libraryClassPool) throws IOException
{
    // Check if we have at least some keep commands.
    if (configuration.keep == null)
    {
        throw new IOException("You have to specify '-keep' options for the shrinking step.");
    }

    // Clean up any old visitor info.
    programClassPool.classesAccept(new ClassCleaner());
    libraryClassPool.classesAccept(new ClassCleaner());

    // Create a visitor for printing out the seeds. We're  printing out
    // the program elements that are preserved against shrinking,
    // optimization, or obfuscation.
    KeepMarker keepMarker = new KeepMarker();
    ClassPoolVisitor classPoolvisitor =
        ClassSpecificationVisitorFactory.createClassPoolVisitor(configuration.keep,
                                                                keepMarker,
                                                                keepMarker,
                                                                true,
                                                                true,
                                                                true);
    // Mark the seeds.
    programClassPool.accept(classPoolvisitor);
    libraryClassPool.accept(classPoolvisitor);

    // Print out the seeds.
    SimpleClassPrinter printer = new SimpleClassPrinter(false, ps);
    programClassPool.classesAcceptAlphabetically(new MultiClassVisitor(
        new ClassVisitor[]
        {
            new KeptClassFilter(printer),
            new AllMemberVisitor(new KeptMemberFilter(printer))
        }));
}
 

/**
 * Sets the target version on classes in the given program class pool.
 */
public void execute(ClassPool programClassPool) throws IOException
{
    Set newerClassVersions = configuration.warn != null ? null : new HashSet();

    programClassPool.classesAccept(new ClassVersionSetter(configuration.targetClassVersion,
                                                          newerClassVersions));

    if (newerClassVersions != null &&
        newerClassVersions.size() > 0)
    {
        System.err.print("Warning: some classes have more recent versions (");

        Iterator iterator = newerClassVersions.iterator();
        while (iterator.hasNext())
        {
            Integer classVersion = (Integer)iterator.next();
            System.err.print(ClassUtil.externalClassVersion(classVersion.intValue()));

            if (iterator.hasNext())
            {
                System.err.print(",");
            }
        }

        System.err.println(")");
        System.err.println("         than the target version ("+ClassUtil.externalClassVersion(configuration.targetClassVersion)+").");

        if (!configuration.ignoreWarnings)
        {
            System.err.println("         If you are sure this is not a problem,");
            System.err.println("         you could try your luck using the '-ignorewarnings' option.");
            throw new IOException("Please correct the above warnings first.");
        }
    }
}
 

/**
 * Prints out the seeds for the classes in the given program class pool.
 * @param configuration the configuration containing the keep options.
 * @throws IOException if an IO error occurs while writing the configuration.
 */
public void write(Configuration configuration,
                  ClassPool     programClassPool,
                  ClassPool     libraryClassPool) throws IOException
{
    // Check if we have at least some keep commands.
    if (configuration.keep == null)
    {
        throw new IOException("You have to specify '-keep' options for the shrinking step.");
    }

    // Clean up any old visitor info.
    programClassPool.classesAccept(new ClassCleaner());
    libraryClassPool.classesAccept(new ClassCleaner());

    // Create a visitor for printing out the seeds. We're  printing out
    // the program elements that are preserved against shrinking,
    // optimization, or obfuscation.
    KeepMarker keepMarker = new KeepMarker();
    ClassPoolVisitor classPoolvisitor =
        ClassSpecificationVisitorFactory.createClassPoolVisitor(configuration.keep,
                                                                keepMarker,
                                                                keepMarker,
                                                                true,
                                                                true,
                                                                true);
    // Mark the seeds.
    programClassPool.accept(classPoolvisitor);
    libraryClassPool.accept(classPoolvisitor);

    // Print out the seeds.
    SimpleClassPrinter printer = new SimpleClassPrinter(false, ps);
    programClassPool.classesAcceptAlphabetically(new MultiClassVisitor(
        new ClassVisitor[]
        {
            new KeptClassFilter(printer),
            new AllMemberVisitor(new KeptMemberFilter(printer))
        }));
}
 

/**
 * Creates a new ClassObfuscator.
 * @param programClassPool        the class pool in which class names
 *                                have to be unique.
 * @param classNameFactory        the optional class obfuscation dictionary.
 * @param packageNameFactory      the optional package obfuscation
 *                                dictionary.
 * @param useMixedCaseClassNames  specifies whether obfuscated packages and
 *                                classes can get mixed-case names.
 * @param keepPackageNames        the optional filter for which matching
 *                                package names are kept.
 * @param flattenPackageHierarchy the base package if the obfuscated package
 *                                hierarchy is to be flattened.
 * @param repackageClasses        the base package if the obfuscated classes
 *                                are to be repackaged.
 * @param allowAccessModification specifies whether obfuscated classes can
 *                                be freely moved between packages.
 */
public ClassObfuscator(ClassPool programClassPool,
                       DictionaryNameFactory classNameFactory,
                       DictionaryNameFactory packageNameFactory,
                       boolean               useMixedCaseClassNames,
                       List                  keepPackageNames,
                       String                flattenPackageHierarchy,
                       String                repackageClasses,
                       boolean               allowAccessModification)
{
    this.classNameFactory   = classNameFactory;
    this.packageNameFactory = packageNameFactory;

    // First append the package separator if necessary.
    if (flattenPackageHierarchy != null &&
        flattenPackageHierarchy.length() > 0)
    {
        flattenPackageHierarchy += ClassConstants.INTERNAL_PACKAGE_SEPARATOR;
    }

    // First append the package separator if necessary.
    if (repackageClasses != null &&
        repackageClasses.length() > 0)
    {
        repackageClasses += ClassConstants.INTERNAL_PACKAGE_SEPARATOR;
    }

    this.useMixedCaseClassNames  = useMixedCaseClassNames;
    this.keepPackageNamesMatcher = keepPackageNames == null ? null :
        new ListParser(new FileNameParser()).parse(keepPackageNames);
    this.flattenPackageHierarchy = flattenPackageHierarchy;
    this.repackageClasses        = repackageClasses;
    this.allowAccessModification = allowAccessModification;

    // Map the root package onto the root package.
    packagePrefixMap.put("", "");

    // Collect all names that have been taken already.
    programClassPool.classesAccept(new MyKeepCollector());
}
 

/**
 * Prints out the seeds for the classes in the given program class pool.
 * @param configuration the configuration containing the keep options.
 * @throws IOException if an IO error occurs while writing the configuration.
 */
public void write(Configuration configuration,
                  ClassPool     programClassPool,
                  ClassPool     libraryClassPool) throws IOException
{
    // Check if we have at least some keep commands.
    if (configuration.keep == null)
    {
        throw new IOException("You have to specify '-keep' options if you want to write out kept elements with '-printseeds'.");
    }

    // Clean up any old processing info.
    programClassPool.classesAccept(new ClassCleaner());
    libraryClassPool.classesAccept(new ClassCleaner());

    // Create a visitor for printing out the seeds. We're  printing out
    // the program elements that are preserved against shrinking,
    // optimization, or obfuscation.
    KeepMarker keepMarker = new KeepMarker();
    ClassPoolVisitor classPoolvisitor =
        new KeepClassSpecificationVisitorFactory(true, true, true)
            .createClassPoolVisitor(configuration.keep,
                                    keepMarker,
                                    keepMarker,
                                    keepMarker,
                                    null);

    // Mark the seeds.
    programClassPool.accept(classPoolvisitor);
    libraryClassPool.accept(classPoolvisitor);

    // Print out the seeds.
    SimpleClassPrinter printer = new SimpleClassPrinter(false, printWriter);
    programClassPool.classesAcceptAlphabetically(
        new MultiClassVisitor(
            new KeptClassFilter(printer),
            new AllMemberVisitor(new KeptMemberFilter(printer))
        ));
}
 

public void visitClassPool(ClassPool classPool)
{
    // Go over all classes and their methods, marking if they have side
    // effects, until no new cases can be found.
    do
    {
        newSideEffectCount = 0;

        // Go over all classes and their methods once.
        classPool.classesAccept(this);
    }
    while (newSideEffectCount > 0);
}
 

/**
 * Prints out the seeds for the classes in the given program class pool.
 * @param configuration the configuration containing the keep options.
 * @throws IOException if an IO error occurs while writing the configuration.
 */
public void write(Configuration configuration,
                  ClassPool programClassPool,
                  ClassPool libraryClassPool) throws IOException
{
    // Check if we have at least some keep commands.
    if (configuration.keep == null)
    {
        throw new IOException("You have to specify '-keep' options for the shrinking step.");
    }

    // Clean up any old visitor info.
    programClassPool.classesAccept(new ClassCleaner());
    libraryClassPool.classesAccept(new ClassCleaner());

    // Create a visitor for printing out the seeds. We're  printing out
    // the program elements that are preserved against shrinking,
    // optimization, or obfuscation.
    KeepMarker keepMarker = new KeepMarker();
    ClassPoolVisitor classPoolvisitor =
        ClassSpecificationVisitorFactory.createClassPoolVisitor(configuration.keep,
                                                                keepMarker,
                                                                keepMarker,
                                                                true,
                                                                true,
                                                                true);
    // Mark the seeds.
    programClassPool.accept(classPoolvisitor);
    libraryClassPool.accept(classPoolvisitor);

    // Print out the seeds.
    SimpleClassPrinter printer = new SimpleClassPrinter(false, ps);
    programClassPool.classesAcceptAlphabetically(new MultiClassVisitor(
        new ClassVisitor[]
        {
            new KeptClassFilter(printer),
            new AllMemberVisitor(new KeptMemberFilter(printer))
        }));
}
 

/**
 * Sets the target version on classes in the given program class pool.
 */
public void execute(ClassPool programClassPool) throws IOException
{
    Set newerClassVersions = configuration.warn != null ? null : new HashSet();

    programClassPool.classesAccept(new ClassVersionSetter(configuration.targetClassVersion,
                                                          newerClassVersions));

    if (newerClassVersions != null &&
        newerClassVersions.size() > 0)
    {
        System.err.print("Warning: some classes have more recent versions (");

        Iterator iterator = newerClassVersions.iterator();
        while (iterator.hasNext())
        {
            Integer classVersion = (Integer)iterator.next();
            System.err.print(ClassUtil.externalClassVersion(classVersion.intValue()));

            if (iterator.hasNext())
            {
                System.err.print(",");
            }
        }

        System.err.println(")");
        System.err.println("         than the target version ("+ClassUtil.externalClassVersion(configuration.targetClassVersion)+").");

        if (!configuration.ignoreWarnings)
        {
            System.err.println("         If you are sure this is not a problem,");
            System.err.println("         you could try your luck using the '-ignorewarnings' option.");
            throw new IOException("Please correct the above warnings first.");
        }
    }
}
 

public void visitClassPool(ClassPool classPool)
{
    classPool.classesAccept(classVisitor);
}
 

public void visitClassPool(ClassPool classPool)
{
    classPool.classesAccept(classVisitor);
}
 

/**
 * Sets up the Gson context for the given program class pool.
 * Notes will be printed to the given printer if provided.
 *
 * @param programClassPool the program class pool
 * @param libraryClassPool the library class pool
 * @param warningPrinter   the optional warning printer to which notes
 *                         can be printed.
 */
public void setupFor(ClassPool      programClassPool,
                     ClassPool      libraryClassPool,
                     WarningPrinter warningPrinter)
{
    // Only apply remaining optimizations to classes that are not part of
    // Gson itself.
    ClassPool filteredClasses = new ClassPool();
    programClassPool.classesAccept(
        new ClassNameFilter("!com/google/gson/**",
                            new ClassPoolFiller(filteredClasses)));

    // Find all GsonBuilder invocations.
    gsonRuntimeSettings      = new GsonRuntimeSettings();
    GsonBuilderInvocationFinder gsonBuilderInvocationFinder =
        new GsonBuilderInvocationFinder(
            programClassPool,
            libraryClassPool,
            gsonRuntimeSettings,
            new ClassPoolFiller(gsonRuntimeSettings.instanceCreatorClassPool),
            new ClassPoolFiller(gsonRuntimeSettings.typeAdapterClassPool));

    filteredClasses.classesAccept(
        new AllMethodVisitor(
        new AllAttributeVisitor(
        new AllInstructionVisitor(gsonBuilderInvocationFinder))));

    // Find all Gson invocations.
    gsonDomainClassPool = new ClassPool();
    GsonDomainClassFinder domainClassFinder  =
        new GsonDomainClassFinder(gsonRuntimeSettings,
                                  gsonDomainClassPool,
                                  warningPrinter);

    filteredClasses.accept(
        new AllClassVisitor(
        new AllMethodVisitor(
        new AllAttributeVisitor(
        new AllInstructionVisitor(
        new MultiInstructionVisitor(
            new GsonSerializationInvocationFinder(programClassPool,
                                                  libraryClassPool,
                                                  domainClassFinder,
                                                  warningPrinter),
            new GsonDeserializationInvocationFinder(programClassPool,
                                                    libraryClassPool,
                                                    domainClassFinder,
                                                    warningPrinter)))))));
}
 

public void visitClassPool(ClassPool classPool)
{
    classPool.classesAccept(classVisitor);
}
 

/**
 * Marks classes, resources, resource files and native libraries as being
 * used, based on the configuration.
 *
 * @param programClassPool  the program class pool.
 * @param libraryClassPool  the library class pool.
 * @param resourceFilePool  the resource file pool.
 * @param simpleUsageMarker the usage marker for marking any visitor
 *                          accepters.
 * @param classUsageMarker  the usage marker for recursively marking
 *                          classes.
 */
public void mark(ClassPool         programClassPool,
                 ClassPool         libraryClassPool,
                 ResourceFilePool  resourceFilePool,
                 SimpleUsageMarker simpleUsageMarker,
                 ClassUsageMarker  classUsageMarker)
{
    // Mark the seeds.
    libraryClassPool.classesAccept(classUsageMarker);

    // Mark classes that have to be kept.
    programClassPool.classesAccept(
        new MultiClassVisitor(
            new ClassProcessingFlagFilter(ProcessingFlags.DONT_SHRINK, 0,
                                          classUsageMarker),
            new AllMemberVisitor(
            new MemberProcessingFlagFilter(ProcessingFlags.DONT_SHRINK, 0,
            classUsageMarker))
        ));

    // Mark the elements of Kotlin metadata that need to be kept.
    if (configuration.keepKotlinMetadata)
    {
        // Mark Kotlin things that refer to classes that have been marked as being kept now.
        programClassPool.classesAccept(
            new ReferencedKotlinMetadataVisitor(
            classUsageMarker));
    }

    // Mark the inner class and annotation information that has to be kept.
    programClassPool.classesAccept(
        new UsedClassFilter(simpleUsageMarker,
        new AllAttributeVisitor(true,
        new MultiAttributeVisitor(
            new InnerUsageMarker(classUsageMarker),
            new NestUsageMarker(classUsageMarker),
            new AnnotationUsageMarker(classUsageMarker),
            new LocalVariableTypeUsageMarker(classUsageMarker)
        ))));

    // Mark interfaces that have to be kept.
    programClassPool.classesAccept(new InterfaceUsageMarker(classUsageMarker));

    if (configuration.keepKotlinMetadata)
    {
        // Mark the used Kotlin modules.
        resourceFilePool.resourceFilesAccept(
            new ResourceFileNameFilter(KotlinConstants.MODULE.FILE_EXPRESSION,
            new ResourceFileProcessingFlagFilter(0, ProcessingFlags.DONT_PROCESS_KOTLIN_MODULE,
            new KotlinModuleUsageMarker(simpleUsageMarker))));
    }

    // Check if the Gson optimization is enabled.
    StringMatcher filter = configuration.optimizations != null ?
        new ListParser(new NameParser()).parse(configuration.optimizations) :
        new ConstantMatcher(true);
    boolean libraryGson = filter.matches(Optimizer.LIBRARY_GSON);

    if (configuration.optimize && libraryGson)
    {
        // Setup Gson context that represents how Gson is used in program
        // class pool.
        GsonContext gsonContext = new GsonContext();
        gsonContext.setupFor(programClassPool, libraryClassPool, null);

        // Mark domain classes and fields that are involved in GSON library
        // invocations.
        if (gsonContext.gsonRuntimeSettings.excludeFieldsWithModifiers)
        {
            // When fields are excluded based on modifier, we have to keep all
            // fields.
            gsonContext.gsonDomainClassPool.classesAccept(
                new MultiClassVisitor(
                    classUsageMarker,
                    new AllFieldVisitor(classUsageMarker)));
        }
        else
        {
            // When fields are not excluded based on modifier, we can keep only
            // the fields for which we have injected (de)serialization code.
            gsonContext.gsonDomainClassPool.classesAccept(
                new OptimizedJsonFieldVisitor(classUsageMarker,
                                              classUsageMarker));
        }
    }
}
 

public static Map<String, ClazzRefInfo> dump(ProGuard proGuard, Set<String> defaultClasses) throws Exception {

        ClassPool classPool = (ClassPool)ReflectUtils.getField(proGuard, "programClassPool");
        ClassPool libClassPool = (ClassPool)ReflectUtils.getField(proGuard, "libraryClassPool");

        VisitorDTO visitorDTO = new VisitorDTO(defaultClasses, classPool, libClassPool);

        classPool.classesAccept(new ClassStructVisitor(visitorDTO));
        classPool.classesAccept(new ClassDetailVisitor(visitorDTO));
        visitorDTO.addSuperRefInfo();

        return visitorDTO.clazzRefInfoMap;
    }