mrhota

I have included the more recent contributions of @matthewjasper, which brought us up to (roughly) the August timeframe for RFCs. I added all additional RFCs which had been accepted as of 21 Jan 2018.

With full credit where it is due: to @EH2406, who put the original together (here). Note that I'm doing a quick pass and confirming each of these as I get to them.

Legend

• Not Reviewed at all: I simply added items in this list which weren't already in this document. I haven't determined what their stability status is, or whether any documentation exists for them yet
• Need documentation: I (or someone else) determined that the feature is stabilized but no documentation for the feature exists in either the reference or libstd docs. They need documentation as soon as possible.
• If an item is crossed off, I think that means some documentation exists (but maybe it isn'

mrhota

#![feature(plugin)]
#![plugin(regex_macros)]
extern crate regex;
use regex::Regex;

const LANGUAGE_TAG_REGEX: Regex = regex!(r"(?ix)
(?P<language>[:alpha:]{2,3}(-(?P<extlang>[:alpha:]{3}(-[:alpha:]{3}){0,2}))?)
(?P<script>-[:alpha:]{4})?
(?P<region>-([:alpha:]{2}|[:digit:]{3}))?
(?P<variant>-([:alnum:]{5,8}|[:digit:][:alnum:]{3}))*

mrhota

fn foo() {
    let x = &4i;

    match x {
        // wanted to type `e @ &1 ... &4`
        e @ &1 ... 4 => println!("Got a small value: {}", e),
        &val => println!("Got a value: {}", val),
    }
}

mrhota

#![forbid(shadowed_name)]
#![allow(unused_variables)]

pub fn main() {
    let foo = 0i;
    {
        let foo = Some(2.0f64); //~ ERROR foo is shadowed
    }
}

mrhota

#![forbid(shadowed_name)]
#![allow(unused_variables)]

pub fn main() {
    let foo = 0i;
    {
        let foo = Some(2.0f64); //~ ERROR foo is shadowed
    }
}