Macro selection 

macro_rules! selection {
    ( $s:expr, { $($n:ident),+ $(,)? } ) => { ... };
    ( $s:expr, [{ $($n:ident),+ $(,)? }] ) => { ... };
}

Available on crate feature serde only.

Specta compatible selection of struct fields.

use specta::{selection, ts::inline_ref};

#[derive(Clone)]
struct MyStruct {
    name: String,
    age: i32,
    is_verified: bool,
    password: String,
}

let person = MyStruct {
    name: "Monty".into(),
    age: 7,
    is_verified: true,
    password: "password".into(),
};
let people = vec![person.clone(), person.clone()];

// Selection creates an anonymous struct with the subset of fields you want.
assert_eq!(inline_ref(&selection!(person, {
    name,
    age
}), &Default::default()).unwrap(), "{ name: string; age: number }");

// You can apply the selection to an array.
assert_eq!(inline_ref(&selection!(people, [{
    name,
    age
}]), &Default::default()).unwrap(), "{ name: string; age: number }[]");