classprinter.java

ProGuard 是一个免费的 Java类文件的压缩

        if (programMember.u2attributesCount > 0)
        {
            println("Class member attributes (count = " + programMember.u2attributesCount + "):");
            programMember.attributesAccept(programClass, this);
        }
    }


    public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField)
    {
        println(visitorInfo(libraryField) + " " +
                "Field:        " +
                libraryField.getName(libraryClass) + " " +
                libraryField.getDescriptor(libraryClass));

        indent();
        println("Access flags: 0x" + Integer.toHexString(libraryField.u2accessFlags));
        println("  = " +
                ClassUtil.externalFullFieldDescription(libraryField.u2accessFlags,
                                                       libraryField.getName(libraryClass),
                                                       libraryField.getDescriptor(libraryClass)));
        outdent();
    }


    public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod)
    {
        println(visitorInfo(libraryMethod) + " " +
                "Method:       " +
                libraryMethod.getName(libraryClass) + " " +
                libraryMethod.getDescriptor(libraryClass));

        indent();
        println("Access flags: 0x" + Integer.toHexString(libraryMethod.u2accessFlags));
        println("  = " +
                ClassUtil.externalFullMethodDescription(libraryClass.getName(),
                                                        libraryMethod.u2accessFlags,
                                                        libraryMethod.getName(libraryClass),
                                                        libraryMethod.getDescriptor(libraryClass)));
        outdent();
    }


    // Implementations for AttributeVisitor.
    // Note that attributes are typically only referenced once, so we don't
    // test if they are marked already.

    public void visitUnknownAttribute(Clazz clazz, UnknownAttribute unknownAttribute)
    {
        println(visitorInfo(unknownAttribute) +
                " Unknown attribute (" + clazz.getString(unknownAttribute.u2attributeNameIndex) + ")");
    }


    public void visitSourceFileAttribute(Clazz clazz, SourceFileAttribute sourceFileAttribute)
    {
        println(visitorInfo(sourceFileAttribute) +
                " Source file attribute:");

        indent();
        clazz.constantPoolEntryAccept(sourceFileAttribute.u2sourceFileIndex, this);
        outdent();
    }


    public void visitSourceDirAttribute(Clazz clazz, SourceDirAttribute sourceDirAttribute)
    {
        println(visitorInfo(sourceDirAttribute) +
                " Source dir attribute:");

        indent();
        clazz.constantPoolEntryAccept(sourceDirAttribute.u2sourceDirIndex, this);
        outdent();
    }


    public void visitInnerClassesAttribute(Clazz clazz, InnerClassesAttribute innerClassesAttribute)
    {
        println(visitorInfo(innerClassesAttribute) +
                " Inner classes attribute (count = " + innerClassesAttribute.u2classesCount + ")");

        indent();
        innerClassesAttribute.innerClassEntriesAccept(clazz, this);
        outdent();
    }


    public void visitEnclosingMethodAttribute(Clazz clazz, EnclosingMethodAttribute enclosingMethodAttribute)
    {
        println(visitorInfo(enclosingMethodAttribute) +
                " Enclosing method attribute [" +
                clazz.getClassName(enclosingMethodAttribute.u2classIndex)  +
                (enclosingMethodAttribute.u2nameAndTypeIndex == 0 ?  "" : "." +
                 clazz.getName(enclosingMethodAttribute.u2nameAndTypeIndex) + " " +
                 clazz.getType(enclosingMethodAttribute.u2nameAndTypeIndex)) + "]");
    }


    public void visitDeprecatedAttribute(Clazz clazz, DeprecatedAttribute deprecatedAttribute)
    {
        println(visitorInfo(deprecatedAttribute) +
                " Deprecated attribute");
    }


    public void visitSyntheticAttribute(Clazz clazz, SyntheticAttribute syntheticAttribute)
    {
        println(visitorInfo(syntheticAttribute) +
                " Synthetic attribute");
    }


    public void visitSignatureAttribute(Clazz clazz, SignatureAttribute signatureAttribute)
    {
        println(visitorInfo(signatureAttribute) +
                " Signature attribute:");

        indent();
        clazz.constantPoolEntryAccept(signatureAttribute.u2signatureIndex, this);
        outdent();
    }


    public void visitConstantValueAttribute(Clazz clazz, Field field, ConstantValueAttribute constantValueAttribute)
    {
        println(visitorInfo(constantValueAttribute) +
                " Constant value attribute:");

        clazz.constantPoolEntryAccept(constantValueAttribute.u2constantValueIndex, this);
    }


    public void visitExceptionsAttribute(Clazz clazz, Method method, ExceptionsAttribute exceptionsAttribute)
    {
        println(visitorInfo(exceptionsAttribute) +
                " Exceptions attribute (count = " + exceptionsAttribute.u2exceptionIndexTableLength + ")");

        indent();
        exceptionsAttribute.exceptionEntriesAccept((ProgramClass)clazz, this);
        outdent();
    }


    public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
    {
        println(visitorInfo(codeAttribute) +
                " Code attribute instructions (code length = "+ codeAttribute.u4codeLength +
                ", locals = "+ codeAttribute.u2maxLocals +
                ", stack = "+ codeAttribute.u2maxStack + "):");

        indent();

        codeAttribute.instructionsAccept(clazz, method, this);

        println("Code attribute exceptions (count = " +
                codeAttribute.u2exceptionTableLength + "):");

        codeAttribute.exceptionsAccept(clazz, method, this);

        println("Code attribute attributes (attribute count = " +
                codeAttribute.u2attributesCount + "):");

        codeAttribute.attributesAccept(clazz, method, this);

        outdent();
    }


    public void visitStackMapAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapAttribute stackMapAttribute)
    {
        println(visitorInfo(codeAttribute) +
                " Stack map attribute (count = "+
                stackMapAttribute.u2stackMapFramesCount + "):");

        indent();
        stackMapAttribute.stackMapFramesAccept(clazz, method, codeAttribute, this);
        outdent();
    }


    public void visitStackMapTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, StackMapTableAttribute stackMapTableAttribute)
    {
        println(visitorInfo(codeAttribute) +
                " Stack map table attribute (count = "+
                stackMapTableAttribute.u2stackMapFramesCount + "):");

        indent();
        stackMapTableAttribute.stackMapFramesAccept(clazz, method, codeAttribute, this);
        outdent();
    }


    public void visitLineNumberTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, LineNumberTableAttribute lineNumberTableAttribute)
    {
        println(visitorInfo(lineNumberTableAttribute) +
                " Line number table attribute (count = " +
                lineNumberTableAttribute.u2lineNumberTableLength + ")");

        indent();
        lineNumberTableAttribute.lineNumbersAccept(clazz, method, codeAttribute, this);
        outdent();
    }


    public void visitLocalVariableTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, LocalVariableTableAttribute localVariableTableAttribute)
    {
        println(visitorInfo(localVariableTableAttribute) +
                " Local variable table attribute (count = " +
                localVariableTableAttribute.u2localVariableTableLength + ")");

        indent();
        localVariableTableAttribute.localVariablesAccept(clazz, method, codeAttribute, this);
        outdent();
    }


    public void visitLocalVariableTypeTableAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute, LocalVariableTypeTableAttribute localVariableTypeTableAttribute)
    {
        println(visitorInfo(localVariableTypeTableAttribute) +
                " Local variable type table attribute (count = "+
                localVariableTypeTableAttribute.u2localVariableTypeTableLength + ")");

        indent();
        localVariableTypeTableAttribute.localVariablesAccept(clazz, method, codeAttribute, this);
        outdent();
    }


    public void visitRuntimeVisibleAnnotationsAttribute(Clazz clazz, RuntimeVisibleAnnotationsAttribute runtimeVisibleAnnotationsAttribute)
    {
        println(visitorInfo(runtimeVisibleAnnotationsAttribute) +
                " Runtime visible annotations attribute:");

        indent();
        runtimeVisibleAnnotationsAttribute.annotationsAccept(clazz, this);
        outdent();
    }


    public void visitRuntimeInvisibleAnnotationsAttribute(Clazz clazz, RuntimeInvisibleAnnotationsAttribute runtimeInvisibleAnnotationsAttribute)
    {
        println(visitorInfo(runtimeInvisibleAnnotationsAttribute) +
                " Runtime invisible annotations attribute:");

        indent();
        runtimeInvisibleAnnotationsAttribute.annotationsAccept(clazz, this);
        outdent();
    }


    public void visitRuntimeVisibleParameterAnnotationsAttribute(Clazz clazz, Method method, RuntimeVisibleParameterAnnotationsAttribute runtimeVisibleParameterAnnotationsAttribute)
    {
        println(visitorInfo(runtimeVisibleParameterAnnotationsAttribute) +
                " Runtime visible parameter annotations attribute:");

        indent();
        runtimeVisibleParameterAnnotationsAttribute.annotationsAccept(clazz, method, this);
        outdent();
    }


    public void visitRuntimeInvisibleParameterAnnotationsAttribute(Clazz clazz, Method method, RuntimeInvisibleParameterAnnotationsAttribute runtimeInvisibleParameterAnnotationsAttribute)
    {
        println(visitorInfo(runtimeInvisibleParameterAnnotationsAttribute) +
                " Runtime invisible parameter annotations attribute:");

        indent();
        runtimeInvisibleParameterAnnotationsAttribute.annotationsAccept(clazz, method, this);
        outdent();
    }


    public void visitAnnotationDefaultAttribute(Clazz clazz, Method method, AnnotationDefaultAttribute annotationDefaultAttribute)
    {
        println(visitorInfo(annotationDefaultAttribute) +
                " Annotation default attribute:");

        indent();
        annotationDefaultAttribute.defaultValueAccept(clazz, this);
        outdent();
    }


    // Implementations for InnerClassesInfoVisitor.

    public void visitInnerClassesInfo(Clazz clazz, InnerClassesInfo innerClassesInfo)
    {
        println(visitorInfo(innerClassesInfo) +
                " InnerClassesInfo:");

        indent();
        if (innerClassesInfo.u2innerClassIndex != 0)
        {
            clazz.constantPoolEntryAccept(innerClassesInfo.u2innerClassIndex, this);
        }

        if (innerClassesInfo.u2outerClassIndex != 0)
        {
            clazz.constantPoolEntryAccept(innerClassesInfo.u2outerClassIndex, this);
        }

        if (innerClassesInfo.u2innerNameIndex != 0)
        {
            clazz.constantPoolEntryAccept(innerClassesInfo.u2innerNameIndex, this);
        }