Trait IncrementDecrementMutator 

pub(crate) trait IncrementDecrementMutator:
    Sized
    + Copy
    + Debug {
    const ONE: Self;

    // Required methods
    fn validate(old: Self, new: Self, size: usize) -> Option<Self>;
    fn wrapping_add(self, rhs: Self) -> Self;
    fn wrapping_sub(self, rhs: Self) -> Self;

    // Provided method
    fn increment_decrement(
        self,
        size: usize,
        test_runner: &mut TestRunner,
    ) -> Option<Self> { ... }
}

Mutator that randomly increments or decrements an uint or int.

Required Associated Constants

const ONE: Self

Required Methods

fn validate(old: Self, new: Self, size: usize) -> Option<Self>

fn wrapping_add(self, rhs: Self) -> Self

fn wrapping_sub(self, rhs: Self) -> Self

Provided Methods

fn increment_decrement( self, size: usize, test_runner: &mut TestRunner, ) -> Option<Self>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl IncrementDecrementMutator for I256

const ONE: Self = Self::ONE

fn validate(old: Self, new: Self, size: usize) -> Option<Self>

fn wrapping_add(self, rhs: Self) -> Self

fn wrapping_sub(self, rhs: Self) -> Self

impl IncrementDecrementMutator for U256

const ONE: Self = Self::ONE

fn validate(old: Self, new: Self, size: usize) -> Option<Self>

fn wrapping_add(self, rhs: Self) -> Self

fn wrapping_sub(self, rhs: Self) -> Self

Implementors