Macro path_iter::path

macro_rules! path {
    ([$x:ident ($y:expr)] $([$($z:tt)*])+ $w:expr) => { ... };
    ([$x0:expr , $($x:expr),+ $(,)?] $z:expr) => { ... };
    ([$x:expr] [$x1:expr] [$x2:expr] [$x3:expr] [$x4:expr] [$x5:expr] [$x6:expr] $z:expr) => { ... };
    ([$x:expr] [$x1:expr] [$x2:expr] [$x3:expr] [$x4:expr] [$x5:expr] $z:expr) => { ... };
    ([$x:expr] [$x1:expr] [$x2:expr] [$x3:expr] [$x4:expr] $z:expr) => { ... };
    ([$x:expr] [$x1:expr] [$x2:expr] [$x3:expr] $z:expr) => { ... };
    ([$x:expr] [$x1:expr] [$x2:expr] $z:expr) => { ... };
    ([$x:expr] [$y:expr] $z:expr) => { ... };
    ([$x:ident ($y:expr)] $z:expr) => { ... };
    ([$x:expr] $y:expr) => { ... };
}

Syntax sugar for a path sub-type.

For example:

use path_iter::*;

fn main() {
    for a in path!([And] true) {
        // Prints `(true, true)`
        println!("{:?}", a);
    }
}