https://github.com/naokim03/derive_newtype

This derive macro provides Deref, DerefMut, and From for the newtype pattern.
https://github.com/naokim03/derive_newtype

crate derive macro newtype

Last synced: over 1 year ago
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This derive macro provides Deref, DerefMut, and From for the newtype pattern.

• Host: GitHub
• URL: https://github.com/naokim03/derive_newtype
• Owner: NaokiM03
• License: mit
• Created: 2022-05-03T01:38:55.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2022-05-03T13:35:08.000Z (about 4 years ago)
• Last Synced: 2025-01-29T04:19:47.175Z (over 1 year ago)
• Topics: crate, derive, macro, newtype
• Language: Rust
• Homepage:
• Size: 2.93 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# derive_newtype

## About

This derive macro provides `Deref`, `DerefMut`, and `From` for the newtype pattern.

A similar crate exists but has not been updated.

## Notice

This library has no plans to add further functionality at this time. Only version updates of dependent libraries will be followed.

## How to use

```rust

use derive_newtype::Newtype;

#[derive(Newtype)]

struct Foo(u8);

```

This macro will generate the following code:

```rust

impl core::ops::Deref for Foo {

    type Target = u8;

    fn deref(&self) -> &Self::Target {

        &self.0

    }

}

impl core::ops::DerefMut for Foo {

    fn deref_mut(&mut self) -> &mut Self::Target {

        &mut self.0

    }

}

impl From for Foo {        

    fn from(inner: u8) -> Foo {

        Foo(inner)

    }

}

```

## License

derive_newtype is released under the MIT License