# zips  
Just because I was annoyed that I couldn't use `Option<T>::zip` with more than 2 arguments...
Zips provides 2 proc-macros that accept any number of either `Option<T>`s or `Result<T, E>`s as arguments and produces an `Option<(T [, T...])>`.
## Installation
```sh
$> cargo add zips
```
## Usage
### With `Option<T>`:
```rust
use zips::zip;
fn main() -> () {
let i: Option<i32> = Some(0);
let j: Option<usize> = Some(1usize);
let k: Option<()> = None;
// zipped_some: Option<(i32, usize)>
let zipped_some = zip!(i, j);
assert_eq!(zipped_some, Some((0, 1usize)));
// zipped_none: Option<((i32, usize), ())>
let zipped_none = zip!(zipped_some, k);
assert_eq!(zipped_none, None);
}
```
### With `Result<T, E>`:
```rust
use zips::zip_result;
fn main() -> () {
let m: Result<i32, ()> = Ok(1);
let n: Result<usize, ()> = Ok(0usize);
let o: Result<(), &'static str> = Err("I'm an error!");
// zipped_ok: Option<(i32, usize)>
let zipped_ok = zip_result!(m, n);
assert_eq!(zipped_some, Some((1i32, 0usize)));
// zipped_err: Option<((i32, usize), ())>
let zipped_err = zip_result!(zipped_ok, o);
assert_eq!(zipped_err, None);
}
```