#newtype #macro #secret #generate #type #fields #numbers

macro typed-fields

A collection of macros that generate newtypes

1 unstable release

0.1.0 Jan 26, 2024

#350 in Procedural macros

33 downloads per month

MIT/Apache

12KB
176 lines

🦀 typed-fields

Do you like strongly-typed structs?

typed-fields is a collection of macros that generate types following the newtype pattern. The following types are currently supported:

  • name! - a string-based type
  • number! - a number-based type
  • secret! - a type for secrets (requires the secret feature)

Example

The following example showcases the number! macro, which generates a new type that is backed by an i64.

use typed_fields::number;

// Define a new type that is backed by an `i64`
number!(UserId);

fn main() {
    // Create a new `UserId` from an `i64`
    let id = UserId::new(42);

    // Common traits like `Display` are automatically implemented for the type
    println!("User ID: {}", id);
}

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Dependencies

~0.3–0.8MB
~19K SLoC