more-convert: more convert utilities

This crate provides utilities for convert

Usage

more-convert provides a derive macro

• EnumRepr automatically implements TryFrom and Into for enums
  • Ideal for managing Type, etc.
  • Example: test code
• Convert automatically implements From or Into for named structs
  • Leave the very cumbersome From and Into implementations to us!
  • Example From: from's test code
  • Example Into: into's test code

Example

EnumRepr

• enum_attributes
  • serde: automatically implements serde::Serialize and serde::Deserialize

use more_convert::EnumRepr;

#[derive(EnumRepr, Clone, Copy, Debug, PartialEq)]
#[repr(u8)]
#[enum_repr(implicit)]
pub enum Test {
    Zero,
    Three = 3,
    Four,
}

assert_eq!(0u8, Test::Zero.into());
assert_eq!(3u8, Test::Three.into());
assert_eq!(4u8, Test::Four.into());

assert_eq!(0u8.try_into(), Ok(Test::Zero));
assert_eq!(3u8.try_into(), Ok(Test::Three));
assert_eq!(4u8.try_into(), Ok(Test::Four));

Convert

• field_attributes
  • ignore: skip the field
  • rename: rename the field
  • map
    • map: map of expr
    • map_field: map of field
    • map_struct: map of struct

use more_convert::Convert;

#[derive(Convert)]
#[convert(from(B))]
pub struct A {
    pub a: u8,
    pub b: u8,
}

pub struct B {
    pub a: u8,
    pub b: u8,
}

let b = B {
    a: 1u8,
    b: 2u8,
};

let a: A = b.into();

assert_eq!(a.a, 1u8);
assert_eq!(a.b, 2u8);

more Into examples are here
more From examples are here

License

Licensed under

• MIT license