Skip to content

Remove feature const_option from std #98617

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
Jun 28, 2022
Merged

Remove feature const_option from std #98617

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
2ee9241
Remove feature `const_option` from std
ChrisDenton Jun 28, 2022
720c430
Add a fixme comment
ChrisDenton Jun 28, 2022
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 0 additions & 1 deletion library/std/src/lib.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -335,7 +335,6 @@
#![feature(const_ip)]
#![feature(const_ipv4)]
#![feature(const_ipv6)]
#![feature(const_option)]
#![feature(const_socketaddr)]
#![feature(thread_local_internals)]
//
Expand Down
16 changes: 12 additions & 4 deletions library/std/src/sys/windows/args.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,14 @@ use crate::vec;

use core::iter;

/// This is the const equivalent to `NonZeroU16::new(n).unwrap()`
const fn non_zero_u16(n: u16) -> NonZeroU16 {
match NonZeroU16::new(n) {
Some(n) => n,
None => panic!("called `unwrap` on a `None` value"),
}
}

pub fn args() -> Args {
// SAFETY: `GetCommandLineW` returns a pointer to a null terminated UTF-16
// string so it's safe for `WStrUnits` to use.
Expand Down Expand Up @@ -58,10 +66,10 @@ fn parse_lp_cmd_line<'a, F: Fn() -> OsString>(
lp_cmd_line: Option<WStrUnits<'a>>,
exe_name: F,
) -> Vec<OsString> {
const BACKSLASH: NonZeroU16 = NonZeroU16::new(b'\\' as u16).unwrap();
const QUOTE: NonZeroU16 = NonZeroU16::new(b'"' as u16).unwrap();
const TAB: NonZeroU16 = NonZeroU16::new(b'\t' as u16).unwrap();
const SPACE: NonZeroU16 = NonZeroU16::new(b' ' as u16).unwrap();
const BACKSLASH: NonZeroU16 = non_zero_u16(b'\\' as u16);
const QUOTE: NonZeroU16 = non_zero_u16(b'"' as u16);
const TAB: NonZeroU16 = non_zero_u16(b'\t' as u16);
const SPACE: NonZeroU16 = non_zero_u16(b' ' as u16);

let mut ret_val = Vec::new();
// If the cmd line pointer is null or it points to an empty string then
Expand Down