Macro frunk_core::Hlist [−] [src]

macro_rules! Hlist {
    () => { ... };
    ($single: ty) => { ... };
    ($first: ty, $( $repeated: ty ), +) => { ... };
}

Returns a type signature for an HList of the provided types

This is a type macro (introduced in Rust 1.13) that makes it easier to write nested type signatures.


let h: Hlist!(f32, &str, Option<i32>) = hlist![13.5f32, "hello", Some(41)];