random 0.14.1

The package provides sources of randomness.
Documentation 
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use core::marker::PhantomData;

use crate::{Source, Value};

/// A random sequence.
pub struct Sequence<'l, S: ?Sized, V>
where
    S: Source + 'l,
    V: Value + 'l,
{
    source: &'l mut S,
    phantom: PhantomData<&'l V>,
}

impl<'l, S, V> From<&'l mut S> for Sequence<'l, S, V>
where
    S: Source,
    V: Value,
{
    #[inline(always)]
    fn from(source: &'l mut S) -> Self {
        Sequence {
            source,
            phantom: PhantomData,
        }
    }
}

impl<'l, S, V> Iterator for Sequence<'l, S, V>
where
    S: Source,
    V: Value,
{
    type Item = V;

    #[inline(always)]
    fn next(&mut self) -> Option<V> {
        Some(self.source.read())
    }
}