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22 changes: 22 additions & 0 deletions src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -269,6 +269,15 @@ impl<'a, E: CLike> IntoIterator for &'a EnumSet<E> {
fn into_iter(self) -> Iter<E> { self.iter() }
}

#[macro_export]
macro_rules! enum_set {
($($x:expr),*) => ({
let mut ret = EnumSet::new();
$(ret.insert($x);)*
ret
});
}

#[cfg(test)]
mod tests {
use self::Foo::*;
Expand Down Expand Up @@ -521,4 +530,17 @@ mod tests {
let mut set = EnumSet::new();
set.insert(Bar::V32);
}

#[test]
fn test_macro() {
let mut e1: EnumSet<Foo> = EnumSet::new();
e1.insert(A);
e1.insert(B);
let e2: EnumSet<Foo> = enum_set!(A, B);
assert_eq!(e1, e2);

let e1: EnumSet<Foo> = EnumSet::new();
let e2: EnumSet<Foo> = enum_set!();
assert_eq!(e1, e2);
}
}