Re: Does D have class' attributes like C#'s?

[Marc via Digitalmars-d-learn]

On Saturday, 16 December 2017 at 20:05:15 UTC, Anonymouse wrote:
On Saturday, 16 December 2017 at 19:57:30 UTC, Marc wrote:
C# has a quite nice way to store metadata about a property by 
a feature called atributes[1]. For example, I can write 
something like this:

class A {
   [TextSize(256)]
   string Name { get; set; }
}

So using runtime/reflection I can retrieve the TextSize value 
associated to A.name property.

Does D have something similar?

UDAs? User Defined Attributes.

https://dlang.org/spec/attribute.html#UserDefinedAttribute
http://ddili.org/ders/d.en/uda.html

class A {
    @TextSize(256)
    string name() { /* ... */ }
}

I can't "pack" an object, right? In C#, TextSize is a class and 
256 is constructor's first argument. In D it's pretty much an 
array but I guess it's close enough. Thanks!