private-members

Define Private field Members and Inheritance in JAVASCRIPT module pattern

由 依然范特西╮ 提交于 2019-11-26 10:02:42
问题 I can define private member fields in module pattern using the code below var myClass = function(){ var private_field1,private_field_2; var private_func1 = function(){ //....... } //......... var myObj = { global_field1:2, global_field2:\"something\", global_func: function(){//......} } return myObj; }; var obj = myClass(); This method works just fine, but the problem with this problem is that whenever I create a new object the copy of all the functions is created and loaded in memory (not

mapping private property entity framework code first

由 痞子三分冷 提交于 2019-11-26 09:34:47
问题 I am using EF 4.1 and was look for a nice workaround for the lack of enum support. A backing property of int seems logical. [Required] public VenueType Type { get { return (VenueType) TypeId; } set { TypeId = (int) value; } } private int TypeId { get; set; } But how can I make this property private and still map it. In other words: How can I map a private property using EF 4.1 code first? 回答1: you can't map private properties in EF code first. You can try it changing it in to protected and

Accessing private members [closed]

由 北慕城南 提交于 2019-11-26 08:19:34
问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 4 years ago . Is it appropriate to access a class\' private members by casting it to a void pointer and then to a struct? I don\'t think I have permissions to modify the class that contains the data members that I need to access. I don\'t want to take a risk accessing the data members in

Can I access private members from outside the class without using friends?

由 为君一笑 提交于 2019-11-26 03:55:00
Disclaimer Yes, I am fully aware that what I am asking about is totally stupid and that anyone who would wish to try such a thing in production code should be fired and/or shot. I'm mainly looking to see if can be done. Now that that's out of the way, is there any way to access private class members in C++ from outside the class? For example, is there any way to do this with pointer offsets? (Naive and otherwise non-production-ready techniques welcome) Update As noted in the comments, I asked this question because I wanted to write a blog post on over-encapsulation (and how it affects TDD). I

Access to private inherited fields via reflection in Java

由 ╄→гoц情女王★ 提交于 2019-11-26 03:50:10
问题 I found a way to get inherited members via class.getDeclaredFields(); and acces to private members via class.getFields() But i\'m looking for private inherited fields. How can i achieve this? 回答1: This should demonstrate how to solve it: import java.lang.reflect.Field; class Super { private int i = 5; } public class B extends Super { public static void main(String[] args) throws Exception { B b = new B(); Field[] fs = b.getClass().getSuperclass().getDeclaredFields(); fs[0].setAccessible(true)

Can I access private members from outside the class without using friends?

由 久未见 提交于 2019-11-26 01:52:31
问题 Disclaimer Yes, I am fully aware that what I am asking about is totally stupid and that anyone who would wish to try such a thing in production code should be fired and/or shot. I\'m mainly looking to see if can be done. Now that that\'s out of the way, is there any way to access private class members in C++ from outside the class? For example, is there any way to do this with pointer offsets? (Naive and otherwise non-production-ready techniques welcome) Update As noted in the comments, I

Why can outer Java classes access inner class private members?

由 落花浮王杯 提交于 2019-11-25 23:34:14
问题 I observed that Outer classes can access inner classes private instance variables. How is this possible? Here is a sample code demonstrating the same: class ABC{ class XYZ{ private int x=10; } public static void main(String... args){ ABC.XYZ xx = new ABC().new XYZ(); System.out.println(\"Hello :: \"+xx.x); ///Why is this allowed?? } } Why is this behavior allowed? 回答1: The inner class is just a way to cleanly separate some functionality that really belongs to the original outer class. They

Why can I use auto on a private type?

由 旧城冷巷雨未停 提交于 2019-11-25 23:28:01
问题 I was somehow surprised that the following code compiles and runs (vc2012 & gcc4.7.2) class Foo { struct Bar { int i; }; public: Bar Baz() { return Bar(); } }; int main() { Foo f; // Foo::Bar b = f.Baz(); // error auto b = f.Baz(); // ok std::cout << b.i; } Is it correct that this code compiles fine? And why is it correct? Why can I use auto on a private type, while I can\'t use its name (as expected)? 回答1: The rules for auto are, for the most part, the same as for template type deduction.

Private properties in JavaScript ES6 classes

由 瘦欲@ 提交于 2019-11-25 22:58:02
问题 Is it possible to create private properties in ES6 classes? Here\'s an example. How can I prevent access to instance.property ? class Something { constructor(){ this.property = \"test\"; } } var instance = new Something(); console.log(instance.property); //=> \"test\" 回答1: Private fields are being implemented in the ECMA standard. You can start using them today with babel 7 and stage 3 preset. See babel REPL example. class Something { #property; constructor(){ this.#property = "test"; } }

Why do objects of the same class have access to each other&#39;s private data?

由 空扰寡人 提交于 2019-11-25 20:55:03
Why do objects of the same class have access to each other's private data? class TrivialClass { public: TrivialClass(const std::string& data) : mData(data) {}; const std::string& getData(const TrivialClass& rhs) const { return rhs.mData; }; private: std::string mData; }; int main() { TrivialClass a("fish"); TrivialClass b("heads"); std::cout << "b via a = " << a.getData(b) << std::endl; return 0; } This codes works. It is perfectly possible for object a to access private data from object b and return it. Why should this be so? I would think that private data is private. (I started out by
订阅 private-members