capnp::capnp_word!

macro_rules! capnp_word {
    ($b0:expr, $b1:expr, $b2:expr, $b3:expr,
   $b4:expr, $b5:expr, $b6:expr, $b7:expr) => { ... };
}

Constructs a Word from its constituent bytes. This macro can be used to construct constants. In the future, when Rust supports constant functions, this macro will be replaced by such a function.