pl-hlist 1.0.1

Provides support for heterogeneous lists (known as `HList`s), which are functional, tuple-like, strongly-typed data structures that can contain elements of differing types.
Documentation 
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//
// Copyright (c) 2015-2019 Plausible Labs Cooperative, Inc.
// All rights reserved.
//
// HList macro implementations based on:
//   https://github.com/epsilonz/shoggoth.rs
//

/// Shorthand for building an `HList` from the given elements.
///
/// # Examples
///
/// ```
/// use pl_hlist::*;
///
/// # fn main() {
/// let x: HCons<u8, HCons<u32, HNil>> = hlist!(1u8, 666u32);
/// # }
/// ```
#[macro_export]
macro_rules! hlist {
    {} => {
        HNil
    };
    { $head:expr } => {
        HCons($head, HNil)
    };
    { $head:expr, $($tail:expr),+ } => {
        HCons($head, hlist!($($tail),+))
    };
}