Re: [question] Access from UDA constructor to parent symbol

[Jerry via Digitalmars-d-learn]

On Monday, 26 December 2016 at 21:15:03 UTC, Adam D. Ruppe wrote:
On Monday, 26 December 2016 at 20:07:56 UTC, crimaniak wrote:
         // I want to see Foo here and use it's reflection to 
iterate fields and methods.

then pass foo to it....

What do you mean parent symbol? I assumed you mean subclass but 
your example shows one class and one struct. So is it the 
structure containing the class? Or what?


But, the answer of just passing the argument is probably the 
best one anyway. You can use a factory function, or pass the 
type from a constructor to a super method, or something like 
that.

I think he wants the symbol that the UDA is attached to.

So instead of doing:

struct attribN(I, T) { }

@attrib1!(Implement1, MyStructName)
@attrib2!(Implement2, MyStructName)
struct MyStructName
{
}


you could instead possibly add a feature to do this:

struct attribN(I, T = __UDA__)
{
}

// or possibly

class attribN(I) : Attribute // Attribute then contains the 
symbol its connected to
{
}


@attrib1!Implement1
@attrib2!Implement2
struct MyStructName
{
}

Not likely a feature to be added though.