Properties don't behave like variables?

[Steven Schveighoffer]

On Sun, 06 May 2012 22:05:20 -0400, Mehrdad <wfunction at hotmail.com> wrote:

> Why doesn't this compile?
>
> @property int foo() { return 1; }
> @property void foo(int v) { }
>
> void main()
> {
> 	foo |= 2;
> }

It's like this in C#.

I can't decide whether I like it better in D or C#.  Clearly the compiler  
lowering of foo |= 2 to foo = foo | 2 would be benficial in terms of less  
code to write.

But I also like having control over how properties can implement  
operators.  For example, the above is two function calls, but it may be  
easier/more efficient written as one.  The issue is, how do you do that?

The current definition syntax doesn't lend itself well to extension...

-Steve