libraryclass.java

ProGuard 是一个免费的 Java类文件的压缩

                                           classVisitor);
            }
        }

        // Then visit its interfaces, recursively.
        if (visitInterfaces)
        {
            if (interfaceClasses != null)
            {
                for (int index = 0; index < interfaceClasses.length; index++)
                {
                    Clazz interfaceClass = interfaceClasses[index];
                    if (interfaceClass != null)
                    {
                        interfaceClass.hierarchyAccept(true,
                                                       true,
                                                       true,
                                                       false,
                                                       classVisitor);
                    }
                }
            }
        }

        // Then visit its subclasses, recursively.
        if (visitSubclasses)
        {
            if (subClasses != null)
            {
                for (int index = 0; index < subClasses.length; index++)
                {
                    subClasses[index].hierarchyAccept(true,
                                                      false,
                                                      false,
                                                      true,
                                                      classVisitor);
                }
            }
        }
    }


    public void constantPoolEntriesAccept(ConstantVisitor constantVisitor)
    {
        // This class doesn't keep references to its constant pool entries.
    }


    public void constantPoolEntryAccept(int index, ConstantVisitor constantVisitor)
    {
        // This class doesn't keep references to its constant pool entries.
    }


    public void fieldsAccept(MemberVisitor memberVisitor)
    {
        for (int index = 0; index < fields.length; index++)
        {
            Field field = fields[index];
            if (field != null)
            {
                field.accept(this, memberVisitor);
            }
        }
    }


    public void fieldAccept(String name, String descriptor, MemberVisitor memberVisitor)
    {
        Field field = findField(name, descriptor);
        if (field != null)
        {
            field.accept(this, memberVisitor);
        }
    }


    public void methodsAccept(MemberVisitor memberVisitor)
    {
        for (int index = 0; index < methods.length; index++)
        {
            Method method = methods[index];
            if (method != null)
            {
                method.accept(this, memberVisitor);
            }
        }
    }


    public void methodAccept(String name, String descriptor, MemberVisitor memberVisitor)
    {
        Method method = findMethod(name, descriptor);
        if (method != null)
        {
            method.accept(this, memberVisitor);
        }
    }


    public boolean mayHaveImplementations(Method method)
    {
        return
           (u2accessFlags & ClassConstants.INTERNAL_ACC_FINAL) == 0 &&
           (method == null ||
            ((method.getAccessFlags() & (ClassConstants.INTERNAL_ACC_PRIVATE |
                                         ClassConstants.INTERNAL_ACC_STATIC  |
                                         ClassConstants.INTERNAL_ACC_FINAL)) == 0 &&
                                                                                  !method.getName(this).equals(ClassConstants.INTERNAL_METHOD_NAME_INIT)));
    }


    private boolean isSpecial(Method method)
    {
        return
            (method.getAccessFlags() & (ClassConstants.INTERNAL_ACC_PRIVATE |
                                        ClassConstants.INTERNAL_ACC_STATIC)) != 0 ||
                                                                                  method.getName(this).equals(ClassConstants.INTERNAL_METHOD_NAME_INIT);
    }


    public void methodImplementationsAccept(Method        method,
                                            boolean       visitThisMethod,
                                            MemberVisitor memberVisitor)
    {
        methodImplementationsAccept(method.getName(this),
                                    method.getDescriptor(this),
                                    method,
                                    visitThisMethod,
                                    true,
                                    true,
                                    true,
                                    memberVisitor);
    }


    public void methodImplementationsAccept(String        name,
                                            String        descriptor,
                                            boolean       visitThisMethod,
                                            MemberVisitor memberVisitor)
    {
        methodImplementationsAccept(name,
                                    descriptor,
                                    visitThisMethod,
                                    true,
                                    true,
                                    true,
                                    memberVisitor);
    }


    public void methodImplementationsAccept(String        name,
                                            String        descriptor,
                                            boolean       visitThisMethod,
                                            boolean       visitSpecialMethods,
                                            boolean       visitSuperMethods,
                                            boolean       visitOverridingMethods,
                                            MemberVisitor memberVisitor)
    {
        methodImplementationsAccept(name,
                                    descriptor,
                                    findMethod(name, descriptor),
                                    visitThisMethod,
                                    visitSpecialMethods,
                                    visitSuperMethods,
                                    visitOverridingMethods,
                                    memberVisitor);
    }


    public void methodImplementationsAccept(String        name,
                                            String        descriptor,
                                            Method        method,
                                            boolean       visitThisMethod,
                                            boolean       visitSpecialMethods,
                                            boolean       visitSuperMethods,
                                            boolean       visitOverridingMethods,
                                            MemberVisitor memberVisitor)
    {
        // Do we have the method in this class?
        if (method != null)
        {
            // Is it a special method?
            if (isSpecial(method))
            {
                // Visit the special method in this class, if allowed.
                if (visitSpecialMethods)
                {
                    method.accept(this, memberVisitor);

                    // The method can't have any other implementations.
                    return;
                }
            }
            else
            {
                // Visit the method in this class, if allowed.
                if (visitThisMethod)
                {
                    method.accept(this, memberVisitor);
                }

                // We don't have to look in subclasses if there can't be
                // any overriding implementations.
                if (!mayHaveImplementations(method))
                {
                    visitOverridingMethods = false;
                }

                // We don't have to look in superclasses if we have a concrete
                // implementation here.
                if ((method.getAccessFlags() & ClassConstants.INTERNAL_ACC_ABSTRACT) == 0)
                {
                    visitSuperMethods = false;
                }
            }
        }

        // Then visit the method in its subclasses, recursively.
        if (visitOverridingMethods)
        {
            // Go looking for implementations in all of the subclasses.
            if (subClasses != null)
            {
                for (int index = 0; index < subClasses.length; index++)
                {
                    Clazz subClass = subClasses[index];
                    subClass.methodImplementationsAccept(name,
                                                         descriptor,
                                                         true,
                                                         false,
                                                         visitSuperMethods,
                                                         true,
                                                         memberVisitor);
                }
            }

            // We don't have to look in superclasses right away if we dont't
            // have a concrete class here.
            if ((u2accessFlags & (ClassConstants.INTERNAL_ACC_INTERFACE |
                                  ClassConstants.INTERNAL_ACC_ABSTRACT)) != 0)
            {
                visitSuperMethods = false;
            }
        }

        // Then visit the method in its superclass, recursively.
        if (visitSuperMethods)
        {
            Clazz superClass = getSuperClass();
            if (superClass != null)
            {
                superClass.methodImplementationsAccept(name,
                                                       descriptor,
                                                       true,
                                                       false,
                                                       true,
                                                       false,
                                                       memberVisitor);
            }
        }
    }


    public void attributesAccept(AttributeVisitor attributeVisitor)
    {
        throw new UnsupportedOperationException("Library class ["+thisClassName+"] doesn't store attributes");
    }


    // Implementations for VisitorAccepter.

    public Object getVisitorInfo()
    {
        return visitorInfo;
    }

    public void setVisitorInfo(Object visitorInfo)
    {
        this.visitorInfo = visitorInfo;
    }
}