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March 29, 2007
attributes
Hi all!

is there a way to get all attributes and their types in a class at runtime? Comming from the c# world I'm missing something like meta tags [attributes] - something like reflection. I wonder how this issue can be solved in d?
March 29, 2007
Re: attributes
macky wrote:
> Hi all!
> 
> is there a way to get all attributes and their types in a class at runtime? Comming from the c# world I'm missing something like meta tags [attributes] - something like reflection. I wonder how this issue can be solved in d?

Perhaps something like this:

import std.stdio;

class A {
  int a;
  float b;
  C c;
}

class C {
  int i;
}

void main() {
  A a = new A;
  foreach (i, attrib; a.tupleof) {
    writefln("attribute ", i, " is of type ", typeid(typeof(attrib)), " 
and value ", attrib);
  }
}

Output:

attribute 0 is of type int and value 0
attribute 1 is of type float and value nan
attribute 2 is of type attribList.C and value null
March 30, 2007
Re: attributes
Thanx, this seems like a nice solution. I will look into it!

Bradley Smith Wrote:

> macky wrote:
> > Hi all!
> > 
> > is there a way to get all attributes and their types in a class at runtime? Comming from the c# world I'm missing something like meta tags [attributes] - something like reflection. I wonder how this issue can be solved in d?
> 
> Perhaps something like this:
> 
> import std.stdio;
> 
> class A {
>    int a;
>    float b;
>    C c;
> }
> 
> class C {
>    int i;
> }
> 
> void main() {
>    A a = new A;
>    foreach (i, attrib; a.tupleof) {
>      writefln("attribute ", i, " is of type ", typeid(typeof(attrib)), " 
> and value ", attrib);
>    }
> }
> 
> Output:
> 
> attribute 0 is of type int and value 0
> attribute 1 is of type float and value nan
> attribute 2 is of type attribList.C and value null
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