Crates.io | try_default |
lib.rs | try_default |
version | 1.0.1 |
source | src |
created_at | 2021-03-08 18:13:04.683135 |
updated_at | 2023-10-14 16:19:51.198448 |
description | A trait to optionally get the Default if present, or None if there is no Default. |
homepage | |
repository | https://github.com/JosephLenton/TryDefault |
max_upload_size | |
id | 365794 |
size | 5,455 |
A 'try' version of Default
, where it returns an Option::Some
wrapping the default value when present.
It returns Option::None
when there is no Default
available.
You can in theory call this on any type to retrive it's Default, if there is one!
use ::try_default::TryDefault;
// Set to `Some(0)`.
let default_num = <u32>::try_default();
// Set to `None`, as `::std::fs::File` has no `Default`.
let default_file = <::std::fs::File>::try_default();
specialization
feature.