Trait mz_repr::fixed_length::FromDatumIter

pub trait FromDatumIter: Sized + Default {
    // Required methods
    fn from_datum_iter<'a, I, D>(&mut self, datum_iter: I) -> Self
       where I: IntoIterator<Item = D>,
             D: Borrow<Datum<'a>>;
    fn try_from_datum_iter<'a, I, D, E>(
        &mut self,
        datum_iter: I,
    ) -> Result<Self, E>
       where I: IntoIterator<Item = Result<D, E>>,
             D: Borrow<Datum<'a>>;
}

A helper trait to construct target values from input Row instances.

Required Methods

fn from_datum_iter<'a, I, D>(&mut self, datum_iter: I) -> Self

where I: IntoIterator<Item = D>, D: Borrow<Datum<'a>>,

Obtains an instance of Self' given an iterator of borrowed datums and a schema provided by types`.

fn try_from_datum_iter<'a, I, D, E>(&mut self, datum_iter: I) -> Result<Self, E>

where I: IntoIterator<Item = Result<D, E>>, D: Borrow<Datum<'a>>,

Obtains an instance of Self' given an iterator of results of borrowed datums and a schema provided by types`.

In the case the iterator produces an error, the pushing of datums is terminated and the error returned.

Object Safety

This trait is not object safe.

Implementors

impl FromDatumIter for Row