为什么attr_accessor创建了一个属性，而method只是一个方法？

发布于 2024-09-10 02:27:52 字数 885 浏览 9 评论 0原文

我正在研究 C# 和 IronRuby 之间的互操作。我注意到，如果我使用 attr_accessor 在 Ruby 中定义一个属性，它就会作为属性呈现给 C#。另一方面，如果我手动创建完全相同的代码，它会作为方法返回。

例如，采用以下代码：

var engine = IronRuby.Ruby.CreateEngine();
string script = @"
  class Test
    attr_accessor :automatic

    def manual
      @manual
    end

    def manual=(val)
      @manual = val
    end

    def initialize
      @automatic = ""testing""
      @manual = ""testing""
    end
  end

  Test.new
";
var testObject = engine.Execute(script);

var automatic = testObject.automatic;
var manual = testObject.manual;

当您查看 C# automatic 变量时，该值是一个字符串“testing”。如果您查看 C# manual 变量，它的类型为 IronRuby.Builtins.RubyMethod。

最终，我想在 Ruby 中创建可以在 C# 中使用的自己的属性，但我似乎无法像 attr_accessor 那样使它们像属性一样可见。

我认为，Ruby 源代码的模块代码（ModuleOps.cs:DefineAccessor）中发生了一些神奇的事情。有什么方法可以直接在 Ruby 代码中执行此操作吗？

原文

I am playing around with the interop between C# and IronRuby. I have noticed that if I define a property in Ruby using attr_accessor, it is presented to C# as a property. If, on the other hand, I create the exact same code manually, it comes back as a method.

For example, take this code:

var engine = IronRuby.Ruby.CreateEngine();
string script = @"
  class Test
    attr_accessor :automatic

    def manual
      @manual
    end

    def manual=(val)
      @manual = val
    end

    def initialize
      @automatic = ""testing""
      @manual = ""testing""
    end
  end

  Test.new
";
var testObject = engine.Execute(script);

var automatic = testObject.automatic;
var manual = testObject.manual;

When you look at the C# automatic variable, the value is a string of "testing". If you look at the C# manual variable, it is type IronRuby.Builtins.RubyMethod.

Ultimately, I want to create my own properties in Ruby that can be used in C#, but I can't seem to make them be visible as properties like attr_accessor does.

I THINK, that there is some magic going on in the Module code of the Ruby source code (ModuleOps.cs:DefineAccessor). Is there any way to do this in Ruby code directly?

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