Derive Macro lain::Mutatable

#[derive(Mutatable)]
{
    // Attributes available to this derive:
    #[lain]
}

Automatically implements lain::traits::Mutatable with basic randomization

Notes

• Any bitfields will automatically be set within the appropriate ranges.
• Min/max values for primitives can be specified using #[lain(min = 10, max = 20)].
• Fields can be ignored using #[lain(ignore)].
• Custom initializers can be specified using #[lain(initializer = “my_initializer_func()”)]

Example

extern crate lain;
use lain::prelude::*;
use lain::rand;

#[derive(RandomChoice)]
enum ChoiceValue {
    FirstChoice = 1,
    SecondChoice = 2,
}

#[derive(Default, Mutatable)]
struct Foo {
    field1: u8,
    #[lain(bits = 7)]
    field2: u8,
    #[lain(bits = 1)]
    field3: u8,
    #[lain(max = 300)]
    field4: u32,
    choice_field: ChoiceValue,
}

let mutator = Mutator::new(rand::thread_rng());
let my_struct: Foo = Default::default();
my_struct.mutate()