ocpi 0.3.5

Unofficial, in progress, OCPI implementation
Documentation 
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use std::{fmt, str::FromStr};

pub struct FromStrVisitor<T> {
    expecting: &'static str,
    _marker: std::marker::PhantomData<T>,
}

impl<T> FromStrVisitor<T> {
    pub fn expecting(expecting: &'static str) -> Self {
        Self {
            expecting,
            _marker: std::marker::PhantomData::default(),
        }
    }
}

impl<'de, T: 'de> serde::de::Visitor<'de> for FromStrVisitor<T>
where
    T: FromStr,
    <T as FromStr>::Err: fmt::Display,
{
    type Value = T;

    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
        formatter.write_str(self.expecting)
    }

    fn visit_str<E>(self, s: &str) -> Result<Self::Value, E>
    where
        E: serde::de::Error,
    {
        s.parse::<T>().map_err(E::custom)
    }
}