Struct boulder::Some

pub struct Some<T>(pub T);

Wrap sequence of T in Option<T>.

This converts a generator of T into a stream of Option<T> by wrapping each value in Some.

Example:

use boulder::{Generator, Inc, Some as GSome};

let mut g = GSome(Inc(2));
assert_eq!(g.generate(), Some(2));
assert_eq!(g.generate(), Some(3));
assert_eq!(g.generate(), Some(4));

Tuple Fields

0: T

Trait Implementations

impl<T: Generator> Generator for Some<T>

type Output = Option<<T as Generator>::Output>

The output type.

fn generate(&mut self) -> Self::Output

Make a new object.

impl<C, T> GeneratorWithPersianRug<C> for Some<T> where
    T: GeneratorWithPersianRug<C>,
    C: Context, 

type Output = Option<<T as GeneratorWithPersianRug<C>>::Output>

Available on crate feature persian-rug only.

The output type.

fn generate<'b, B>(&mut self, context: B) -> (Self::Output, B) where
    B: 'b + Mutator<Context = C>, 

Available on crate feature persian-rug only.

Make a new object.