Crate quick_impl

quick-impl

quick-impl is a Rust procedural macro that simplifies working with enums and structures by generating common methods and traits for each variant/field. This helps reduce boilerplate code and enhances the ergonomics of using enums and structures in your Rust projects.

Features

Enums methods

• as_ref - Returns an immutable reference to the associated data of the enum variant.
• as_ref_mut - Returns a mutable reference to the associated data of the enum variant.
• from - Creates an instance of the enum variant from the associated data.
• into - Converts the enum into the variant associated data, returning an Option.
• is - Checks if the enum variant matches a specified variant.
• try_into - Converts the enum into the variant associated data, returning a Result.

Enums traits

• Default - Implements the Default trait.
• From - Implements the From trait.
• TryInto - Implements the TryInto trait.

Structures methods

• get - A getter for the field. Returns a reference to the field.
• get_clone - A getter for the field. Returns a clone of the field.
• get_mut - A mutable getter for the field.
• into - Converts the structure into the field.
• set - A setter for the field.
• take - Returns the field and replaces it with its default value.
• with - Returns the sutrcture with the field modified.

Structures traits

• AsRef - Implements the AsRef trait.
• AsMut - Implements the AsMut trait.
• Deref - Implements the Deref trait.
• DerefMut - Implements the DerefMut trait.
• Into - Implements the Into trait.

Usage

Add quick-impl to your Cargo.toml:

[dependencies]
quick-impl = "0.1"

In your Rust code:

use quick_impl::QuickImpl;

#[derive(QuickImpl)]
enum YourEnum {
    #[quick_impl(pub const is)]
    Variant1,
    #[quick_impl(pub as_ref, pub(crate) as_ref_mut, impl From)]
    Variant2(i32),
    // ... add attributes to other variants as needed
}

fn main() {
    let instance = YourEnum::Variant1;

    // Use generated methods on enum instances
    assert!(instance.is_variant1());

    let variant2_instance = YourEnum::from(42);
    assert_eq!(*variant2_instance.as_variant2().unwrap(), 42);
}

More examples can be found in examples.

Derive Macros

• QuickImpl