cutlass 0.1.0

Macro based library to take the boilerplate out of configuration handling
# cutlass

> experimental auto-currying for rust functions

### example

this currently works only on nightly with the
`type_alias_impl_trait` feature enabled.


fn add(x: u32, y: u32, z: u32) -> u32 {
    return x + y + z;

fn main() {
    let plus_3 = add(1)(2);
    let v: Vec<u32> = (1..=3).map(plus_3).collect();
    assert_eq!(v, vec![4, 5, 6]);

### how it works

the `#[curry]` proc-macro expands the above `add` function to
something like this (roughly):

type T0 = u32;
type T1 = impl Fn(u32) -> T0;
type T2 = impl Fn(u32) -> T1;
fn add(x: u32) -> T2 {
    return (move |y| move |z| x + y + z);

### gotchas

 - doesn't yet work for method functions (signatures with
 - the function has to have a return value
 - works only on nightly with `type_alias_impl_trait`

### testing

test this crate with `cargo +nightly test`. 

to view macro expansions, install `cargo-expand` and run `cargo expand
--test <test name>`. expand `tests/` for example:

cargo expand --test smoke