1 // Copyright © 2017-2018 Mozilla Foundation
2 //
3 // This program is made available under an ISC-style license.  See the
4 // accompanying file LICENSE for details.
5 
6 macro_rules! cubeb_enum {
7     (pub enum $name:ident { $($variants:tt)* }) => {
8         #[cfg(target_env = "msvc")]
9         pub type $name = i32;
10         #[cfg(not(target_env = "msvc"))]
11         pub type $name = u32;
12         cubeb_enum!(gen, $name, 0, $($variants)*);
13     };
14     (pub enum $name:ident: $t:ty { $($variants:tt)* }) => {
15         pub type $name = $t;
16         cubeb_enum!(gen, $name, 0, $($variants)*);
17     };
18     (gen, $name:ident, $val:expr, $variant:ident, $($rest:tt)*) => {
19         pub const $variant: $name = $val;
20         cubeb_enum!(gen, $name, $val+1, $($rest)*);
21     };
22     (gen, $name:ident, $val:expr, $variant:ident = $e:expr, $($rest:tt)*) => {
23         pub const $variant: $name = $e;
24         cubeb_enum!(gen, $name, $e+1, $($rest)*);
25     };
26     (gen, $name:ident, $val:expr, ) => {}
27 }
28