Shadowing of members

[Benjamin Thaut]

After some refactoring I had a series of bugs that came from renaming 
class members so that the following situation was present.


class foo
{
   float a;

   void doSomething()
   {
     float a;
     a = a * 2.0;
   }
}

The local variable a shadows the member a after the refactoring and 
therefore this code will no longer work as expected. This was quite time 
consuming to track down. So I wanted to ask if we want to prevent that 
with a warning or even an error? D does not allow shadowing of local 
variables, so why is it allowed for members?

Kind Regards
Benjamin Thaut