Struct FilterMap

pub struct FilterMap<G: ?Sized, F> { /* private fields */ }

Trait Implementations

impl<G: Clone + ?Sized, F: Clone> Clone for FilterMap<G, F>

fn clone(&self) -> FilterMap<G, F>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<G: Debug + ?Sized, F: Debug> Debug for FilterMap<G, F>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<G: Generate + ?Sized, T, F: Fn(G::Item) -> Option<T> + Clone> Generate for FilterMap<G, F>

type Item = Option<T>

type Shrink = Shrinker<<G as Generate>::Shrink, F>

fn generate(&self, state: &mut State) -> Self::Shrink

Primary method of this trait. It generates a Shrink instance that will be able to produce values of type Generate::Item and shrink itself.

fn constant(&self) -> bool

Returns true if the generator will always produce the same item. This is used in some optimizations to prevent redundant generations.