enumiter.rs

enum Foo { a, b, c }
static all_Foo : &'static [Foo] = &'static [a, b, c];
fn iterFoo() -> std::vec::VecIterator<Foo> { all_Foo.iter() }

macro_rules! enum_with_iter (
  ($M:ident $E:ident $F:ident { $($V:ident),* }) =>
  ( mod $M {
      use std;
      pub enum $E { $($V),* }
      static all_E : &'static [$E] = &'static [$($V),*];
      pub fn $F() -> std::vec::VecIterator<$E> { all_E.iter() }
    }
  ))

enum_with_iter!(B Bar iterBar { x, y, z })

fn main() {
    use B::*;

    println("Hello Foo");
    for f in iterFoo() {
        print(fmt!("%? ", *f));
    }

    println("Hello Bar");
    for g in iterBar() {
        print(fmt!("%? ", *g));
    }
    println("End of World");
}

gistfile1.txt

% rustc enumiter.rs && ./enumiter
warning: no debug symbols in executable (-arch x86_64)
Hello Foo
a b c Hello Bar
x y z End of World