Trait fuzzcheck::MutatorExt

pub trait MutatorExt<T>: Mutator<T> + Sized where
    T: Clone + 'static, {
    fn filter<F>(self, filter: F) -> FilterMutator<Self, F>
    where
        F: Fn(&T) -> bool,
    { ... }
    fn map<To, Map, Parse>(
        self,
        map: Map,
        parse: Parse
    ) -> MapMutator<T, To, Self, Parse, Map, fn(_: &To, _: f64) -> f64>
    where
        To: Clone + 'static,
        Map: Fn(&T) -> To,
        Parse: Fn(&To) -> Option<T>,
    { ... }
}

A trait for convenience methods automatically implemented for all types that conform to Mutator<V>

Provided Methods

fn filter<F>(self, filter: F) -> FilterMutator<Self, F> where
    F: Fn(&T) -> bool, 

Create a mutator which wraps self but only produces values for which the given closure returns true

fn map<To, Map, Parse>(
    self,
    map: Map,
    parse: Parse
) -> MapMutator<T, To, Self, Parse, Map, fn(_: &To, _: f64) -> f64> where
    To: Clone + 'static,
    Map: Fn(&T) -> To,
    Parse: Fn(&To) -> Option<T>, 

Create a mutator which wraps self and transforms the values generated by self using the map closure. The second closure, parse, should apply the opposite transformation.

Implementors

impl<T, M> MutatorExt<T> for M where
    M: Mutator<T>,
    T: Clone + 'static,