• Deewiant (25/25) May 12 2006 I don't know about the rest of you, but I, at least, often tend to try t...
• =?UTF-8?B?SmFyaS1NYXR0aSBNw6RrZWzDpA==?= (15/17) May 12 2006 Java allows enum "members" without the enum "class" name prefix in

Deewiant <deewiant.doesnotlike.spam gmail.com> writes:

I don't know about the rest of you, but I, at least, often tend to try to use
enums somehow like this:

--
enum X { A, B, C }

void main() {
	X x = A;
}
--

Uh oh! "Undefined identifier A" etc.

This came up a while ago in a switch statement where I was testing the state of
an enum. On a whim, I tried the following:

--
switch (x) with (x) {
	case A:
		...
	...
}
--

Only to get the error "with expressions must be class objects, not 'X'". I
checked the docs and got the added information that structs work, too, but enums
don't.

Funnily enough, this is the only case I can recall when I've ever wanted to use
the with statement, and surely enough it doesn't work. Typical. <g>

How about it? Why not make WithStatement work with enums, in the manner shown
above? I, for one, would find it handy.

=?UTF-8?B?SmFyaS1NYXR0aSBNw6RrZWzDpA==?= <jmjmak utu.fi.invalid> writes:

Deewiant wrote:
 How about it? Why not make WithStatement work with enums, in the manner shown
 above? I, for one, would find it handy.

Java allows enum "members" without the enum "class" name prefix in
switch-case-statements. Maybe this would be possible in D too without
greater problems:

enum X { A, B, C }

...

X x = X.A;

switch(x) {
  case A: ...
  case B: ...
}

Currently both Interfaces and Enums are a bit like second class citizens
in D. Hopefully they are "fixed" before DMD 1.0 is out. :)

-- 
Jari-Matti