Package proguard.classfile

Examples of proguard.classfile.ClassPool

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        // Construct a reduced library class pool with only those library
        // classes whose hierarchies are referenced by the program classes.
        // We can't do this if we later have to come up with the obfuscated
        // class member names that are globally unique.
        ClassPool reducedLibraryClassPool = configuration.useUniqueClassMemberNames ?
            null : new ClassPool();

        WarningPrinter classReferenceWarningPrinter = new WarningPrinter(System.err, configuration.warn);
        WarningPrinter dependencyWarningPrinter     = new WarningPrinter(System.err, configuration.warn);

        // Initialize the superclass hierarchies for program classes.
        programClassPool.classesAccept(
            new ClassSuperHierarchyInitializer(programClassPool,
                                               libraryClassPool,
                                               classReferenceWarningPrinter,
                                               null));

        // Initialize the superclass hierarchy of all library classes, without
        // warnings.
        libraryClassPool.classesAccept(
            new ClassSuperHierarchyInitializer(programClassPool,
                                               libraryClassPool,
                                               null,
                                               dependencyWarningPrinter));

        // Initialize the class references of program class members and
        // attributes. Note that all superclass hierarchies have to be
        // initialized for this purpose.
        WarningPrinter memberReferenceWarningPrinter = new WarningPrinter(System.err, configuration.warn);

        programClassPool.classesAccept(
            new ClassReferenceInitializer(programClassPool,
                                          libraryClassPool,
                                          classReferenceWarningPrinter,
                                          memberReferenceWarningPrinter,
                                          null));

        if (reducedLibraryClassPool != null)
        {
            // Collect the library classes that are directly referenced by
            // program classes, without introspection.
            programClassPool.classesAccept(
                new ReferencedClassVisitor(
                new LibraryClassFilter(
                new ClassPoolFiller(reducedLibraryClassPool))));

            // Reinitialize the superclass hierarchies of referenced library
            // classes, this time with warnings.
            reducedLibraryClassPool.classesAccept(
                new ClassSuperHierarchyInitializer(programClassPool,
                                                   libraryClassPool,
                                                   classReferenceWarningPrinter,
                                                   null));
        }

        // Initialize the Class.forName references.
        WarningPrinter dynamicClassReferenceNotePrinter = new WarningPrinter(System.out, configuration.note);
        WarningPrinter classForNameNotePrinter          = new WarningPrinter(System.out, configuration.note);

        programClassPool.classesAccept(
            new AllMethodVisitor(
            new AllAttributeVisitor(
            new AllInstructionVisitor(
            new DynamicClassReferenceInitializer(programClassPool,
                                                 libraryClassPool,
                                                 dynamicClassReferenceNotePrinter,
                                                 null,
                                                 classForNameNotePrinter,
                                                 createClassNoteExceptionMatcher(configuration.keep))))));

        // Initialize the Class.get[Declared]{Field,Method} references.
        WarningPrinter getMemberNotePrinter = new WarningPrinter(System.out, configuration.note);

        programClassPool.classesAccept(
            new AllMethodVisitor(
            new AllAttributeVisitor(
            new AllInstructionVisitor(
            new DynamicMemberReferenceInitializer(programClassPool,
                                                  libraryClassPool,
                                                  getMemberNotePrinter,
                                                  createClassMemberNoteExceptionMatcher(configuration.keep, true),
                                                  createClassMemberNoteExceptionMatcher(configuration.keep, false))))));

        // Initialize other string constant references, if requested.
        if (configuration.adaptClassStrings != null)
        {
            programClassPool.classesAccept(
                new ClassNameFilter(configuration.adaptClassStrings,
                new AllConstantVisitor(
                new StringReferenceInitializer(programClassPool,
                                               libraryClassPool))));
        }

        // Print various notes, if specified.
        WarningPrinter fullyQualifiedClassNameNotePrinter = new WarningPrinter(System.out, configuration.note);
        WarningPrinter descriptorKeepNotePrinter          = new WarningPrinter(System.out, configuration.note);

        new FullyQualifiedClassNameChecker(programClassPool,
                                           libraryClassPool,
                                           fullyQualifiedClassNameNotePrinter).checkClassSpecifications(configuration.keep);

        new DescriptorKeepChecker(programClassPool,
                                  libraryClassPool,
                                  descriptorKeepNotePrinter).checkClassSpecifications(configuration.keep);

        // Initialize the class references of library class members.
        if (reducedLibraryClassPool != null)
        {
            // Collect the library classes that are referenced by program
            // classes, directly or indirectly, with or without introspection.
            programClassPool.classesAccept(
                new ReferencedClassVisitor(
                new LibraryClassFilter(
                new ClassHierarchyTraveler(true, true, true, false,
                new LibraryClassFilter(
                new ClassPoolFiller(reducedLibraryClassPool))))));

            // Initialize the class references of referenced library
            // classes, without warnings.
            reducedLibraryClassPool.classesAccept(
                new ClassReferenceInitializer(programClassPool,
                                              libraryClassPool,
                                              null,
                                              null,
                                              dependencyWarningPrinter));

            // Reset the library class pool.
            libraryClassPool.clear();

            // Copy the library classes that are referenced directly by program
            // classes and the library classes that are referenced by referenced
            // library classes.
            reducedLibraryClassPool.classesAccept(
                new MultiClassVisitor(new ClassVisitor[]
                {
                    new ClassHierarchyTraveler(true, true, true, false,
                    new LibraryClassFilter(
                    new ClassPoolFiller(libraryClassPool))),
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        }

        // Discard unused program classes.
        int originalProgramClassPoolSize = programClassPool.size();

        ClassPool newProgramClassPool = new ClassPool();
        programClassPool.classesAccept(
            new UsedClassFilter(usageMarker,
            new MultiClassVisitor(
            new ClassVisitor[] {
                new ClassShrinker(usageMarker),
                new ClassPoolFiller(newProgramClassPool)
            })));

        programClassPool.clear();

        // Check if we have at least some output classes.
        int newProgramClassPoolSize = newProgramClassPool.size();
        if (newProgramClassPoolSize == 0)
        {
            throw new IOException("The output jar is empty. Did you specify the proper '-keep' options?");
        }
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        // Construct a reduced library class pool with only those library
        // classes whose hierarchies are referenced by the program classes.
        // We can't do this if we later have to come up with the obfuscated
        // class member names that are globally unique.
        ClassPool reducedLibraryClassPool = configuration.useUniqueClassMemberNames ?
            null : new ClassPool();

        WarningPrinter classReferenceWarningPrinter = new WarningPrinter(System.err, configuration.warn);
        WarningPrinter dependencyWarningPrinter     = new WarningPrinter(System.err, configuration.warn);

        // Initialize the superclass hierarchies for program classes.
        programClassPool.classesAccept(
            new ClassSuperHierarchyInitializer(programClassPool,
                                               libraryClassPool,
                                               classReferenceWarningPrinter,
                                               null));

        // Initialize the superclass hierarchy of all library classes, without
        // warnings.
        libraryClassPool.classesAccept(
            new ClassSuperHierarchyInitializer(programClassPool,
                                               libraryClassPool,
                                               null,
                                               dependencyWarningPrinter));

        // Initialize the class references of program class members and
        // attributes. Note that all superclass hierarchies have to be
        // initialized for this purpose.
        WarningPrinter programMemberReferenceWarningPrinter = new WarningPrinter(System.err, configuration.warn);
        WarningPrinter libraryMemberReferenceWarningPrinter = new WarningPrinter(System.err, configuration.warn);

        programClassPool.classesAccept(
            new ClassReferenceInitializer(programClassPool,
                                          libraryClassPool,
                                          classReferenceWarningPrinter,
                                          programMemberReferenceWarningPrinter,
                                          libraryMemberReferenceWarningPrinter,
                                          null));

        if (reducedLibraryClassPool != null)
        {
            // Collect the library classes that are directly referenced by
            // program classes, without introspection.
            programClassPool.classesAccept(
                new ReferencedClassVisitor(
                new LibraryClassFilter(
                new ClassPoolFiller(reducedLibraryClassPool))));

            // Reinitialize the superclass hierarchies of referenced library
            // classes, this time with warnings.
            reducedLibraryClassPool.classesAccept(
                new ClassSuperHierarchyInitializer(programClassPool,
                                                   libraryClassPool,
                                                   classReferenceWarningPrinter,
                                                   null));
        }

        // Initialize the enum annotation references.
        programClassPool.classesAccept(
            new AllAttributeVisitor(true,
            new AllElementValueVisitor(true,
            new EnumFieldReferenceInitializer())));

            // Initialize the Class.forName references.
        WarningPrinter dynamicClassReferenceNotePrinter = new WarningPrinter(System.out, configuration.note);
        WarningPrinter classForNameNotePrinter          = new WarningPrinter(System.out, configuration.note);

        programClassPool.classesAccept(
            new AllMethodVisitor(
            new AllAttributeVisitor(
            new AllInstructionVisitor(
            new DynamicClassReferenceInitializer(programClassPool,
                                                 libraryClassPool,
                                                 dynamicClassReferenceNotePrinter,
                                                 null,
                                                 classForNameNotePrinter,
                                                 createClassNoteExceptionMatcher(configuration.keep))))));

        // Initialize the Class.get[Declared]{Field,Method} references.
        WarningPrinter getMemberNotePrinter = new WarningPrinter(System.out, configuration.note);

        programClassPool.classesAccept(
            new AllMethodVisitor(
            new AllAttributeVisitor(
            new AllInstructionVisitor(
            new DynamicMemberReferenceInitializer(programClassPool,
                                                  libraryClassPool,
                                                  getMemberNotePrinter,
                                                  createClassMemberNoteExceptionMatcher(configuration.keep, true),
                                                  createClassMemberNoteExceptionMatcher(configuration.keep, false))))));

        // Initialize other string constant references, if requested.
        if (configuration.adaptClassStrings != null)
        {
            programClassPool.classesAccept(
                new ClassNameFilter(configuration.adaptClassStrings,
                new AllConstantVisitor(
                new StringReferenceInitializer(programClassPool,
                                               libraryClassPool))));
        }

        // Check for unkept descriptor classes of kept class members.
        WarningPrinter descriptorKeepNotePrinter = new WarningPrinter(System.out, configuration.note);

        new DescriptorKeepChecker(programClassPool,
                                  libraryClassPool,
                                  descriptorKeepNotePrinter).checkClassSpecifications(configuration.keep);

        // Initialize the class references of library class members.
        if (reducedLibraryClassPool != null)
        {
            // Collect the library classes that are referenced by program
            // classes, directly or indirectly, with or without introspection.
            programClassPool.classesAccept(
                new ReferencedClassVisitor(
                new LibraryClassFilter(
                new ClassHierarchyTraveler(true, true, true, false,
                new LibraryClassFilter(
                new ClassPoolFiller(reducedLibraryClassPool))))));

            // Initialize the class references of referenced library
            // classes, without warnings.
            reducedLibraryClassPool.classesAccept(
                new ClassReferenceInitializer(programClassPool,
                                              libraryClassPool,
                                              null,
                                              null,
                                              null,
                                              dependencyWarningPrinter));

            // Reset the library class pool.
            libraryClassPool.clear();

            // Copy the library classes that are referenced directly by program
            // classes and the library classes that are referenced by referenced
            // library classes.
            reducedLibraryClassPool.classesAccept(
                new MultiClassVisitor(new ClassVisitor[]
                {
                    new ClassHierarchyTraveler(true, true, true, false,
                    new LibraryClassFilter(
                    new ClassPoolFiller(libraryClassPool))),
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Related Classes of proguard.classfile.ClassPool

  • proguard.Initializer
  • proguard.shrink.Shrinker
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