Trait Itertools

pub trait Itertools: Iterator {
    // Provided method
    fn try_collect<T, U, E>(self) -> Result<U, E>
       where Self: Sized + Iterator<Item = Result<T, E>>,
             Result<U, E>: FromIterator<Result<T, E>> { ... }
}

Extra methods for Iterator. Copied from itertools.

Licensed under MIT.

Provided Methods

fn try_collect<T, U, E>(self) -> Result<U, E>

where Self: Sized + Iterator<Item = Result<T, E>>, Result<U, E>: FromIterator<Result<T, E>>,

.try_collect() is more convenient way of writing .collect::<Result<_, _>>()

Example

use std::{fs, io};
use itertools::Itertools;

fn process_dir_entries(entries: &[fs::DirEntry]) {
    // ...
}

fn do_stuff() -> std::io::Result<()> {
    let entries: Vec<_> = fs::read_dir(".")?.try_collect()?;
    process_dir_entries(&entries);

    Ok(())
}

Implementors

impl<T> Itertools for T

where T: Iterator + ?Sized,