Examples of javassist.bytecode.ClassFile

javassist.bytecode.ClassFile
ClassFile represents a Java .class file, which consists of a constant pool, methods, fields, and attributes. @see javassist.CtClass#getClassFile()

        super.setModifiers(mod);
        updateInnerEntry(mod, getName(), this, true);
    }


    private static void updateInnerEntry(int mod, String name, CtClass clazz, boolean outer) {
        ClassFile cf = clazz.getClassFile2();
        InnerClassesAttribute ica = (InnerClassesAttribute)cf.getAttribute(
                                                InnerClassesAttribute.tag);
        if (ica == null)
            return;


        int n = ica.tableLength();

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        if (isInterface || superclass == null)
            superName = null;
        else
            superName = superclass.getName();


        classfile = new ClassFile(isInterface, name, superName);
        if (isInterface && superclass != null)
            classfile.setInterfaces(new String[] { superclass.getName() });


        setModifiers(Modifier.setPublic(getModifiers()));
        hasConstructor = isInterface;

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        checkModify();
        cf.setAccessFlags(AccessFlag.of(mod));
    }


    public boolean hasAnnotation(Class clz) {
        ClassFile cf = getClassFile2();
        AnnotationsAttribute ainfo = (AnnotationsAttribute)
                cf.getAttribute(AnnotationsAttribute.invisibleTag);  
        AnnotationsAttribute ainfo2 = (AnnotationsAttribute)
                cf.getAttribute(AnnotationsAttribute.visibleTag);  
        return hasAnnotationType(clz, getClassPool(), ainfo, ainfo2);
    }

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        return false;
    }


    public Object getAnnotation(Class clz) throws ClassNotFoundException {
        ClassFile cf = getClassFile2();
        AnnotationsAttribute ainfo = (AnnotationsAttribute)
                cf.getAttribute(AnnotationsAttribute.invisibleTag);  
        AnnotationsAttribute ainfo2 = (AnnotationsAttribute)
                cf.getAttribute(AnnotationsAttribute.visibleTag);  
        return getAnnotationType(clz, getClassPool(), ainfo, ainfo2);
    }

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    }


    private Object[] getAnnotations(boolean ignoreNotFound)
        throws ClassNotFoundException
    {
        ClassFile cf = getClassFile2();
        AnnotationsAttribute ainfo = (AnnotationsAttribute)
                cf.getAttribute(AnnotationsAttribute.invisibleTag);  
        AnnotationsAttribute ainfo2 = (AnnotationsAttribute)
                cf.getAttribute(AnnotationsAttribute.visibleTag);  
        return toAnnotationType(ignoreNotFound, getClassPool(), ainfo, ainfo2);
    }

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        if (anInterface != null)
            getClassFile2().addInterface(anInterface.getName());
    }


    public CtClass getDeclaringClass() throws NotFoundException {
        ClassFile cf = getClassFile2();
        InnerClassesAttribute ica = (InnerClassesAttribute)cf.getAttribute(
                                                InnerClassesAttribute.tag);
        if (ica == null)
            return null;


        String name = getName();
        int n = ica.tableLength();
        for (int i = 0; i < n; ++i)
            if (name.equals(ica.innerClass(i))) {
                String outName = ica.outerClass(i);
                if (outName != null)
                    return classPool.get(outName);
                else {
                    // maybe anonymous or local class.
                    EnclosingMethodAttribute ema
                        = (EnclosingMethodAttribute)cf.getAttribute(
                                                    EnclosingMethodAttribute.tag);
                    if (ema != null)
                        return classPool.get(ema.className());
                }
            }

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        return null;
    }


    public CtMethod getEnclosingMethod() throws NotFoundException {
        ClassFile cf = getClassFile2();
        EnclosingMethodAttribute ema
                = (EnclosingMethodAttribute)cf.getAttribute(
                                                EnclosingMethodAttribute.tag);
        if (ema != null) {
            CtClass enc = classPool.get(ema.className());
            return enc.getMethod(ema.methodName(), ema.methodDescriptor());
        }

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            throw new RuntimeException(
                        "sorry, only nested static class is supported");


        checkModify();
        CtClass c = classPool.makeNestedClass(getName() + "$" + name);
        ClassFile cf = getClassFile2();
        ClassFile cf2 = c.getClassFile2();
        InnerClassesAttribute ica = (InnerClassesAttribute)cf.getAttribute(
                                                InnerClassesAttribute.tag);
        if (ica == null) {
            ica = new InnerClassesAttribute(cf.getConstPool());
            cf.addAttribute(ica);
        }


        ica.append(c.getName(), this.getName(), name,
                   (cf2.getAccessFlags() & ~AccessFlag.SUPER) | AccessFlag.STATIC);
        cf2.addAttribute(ica.copy(cf2.getConstPool(), null));
        return c;
    }

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    }


    public void removeField(CtField f) throws NotFoundException {
        checkModify();
        FieldInfo fi = f.getFieldInfo2();
        ClassFile cf = getClassFile2();
        if (cf.getFields().remove(fi)) {
            getMembers().remove(f);
            gcConstPool = true;
        }
        else
            throw new NotFoundException(f.toString());

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        CtConstructor clinit = getClassInitializer();
        if (clinit != null)
            return clinit;


        checkModify();
        ClassFile cf = getClassFile2();
        Bytecode code = new Bytecode(cf.getConstPool(), 0, 0);
        modifyClassConstructor(cf, code, 0, 0);
        return getClassInitializer();
    }

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