bors 1be6b13be7 Auto merge of #149079 - zachs18:clone_from_ref, r=Mark-Simulacrum ...

Add `Box::clone_from_ref` and similar under `feature(clone_from_ref)`

Tracking issue: https://github.com/rust-lang/rust/issues/149075

Accepted ACP: https://github.com/rust-lang/libs-team/issues/483

This PR implements `clone_from_ref` (and `try_*` and `_*in` variants), to get a `Box<T>`, `Arc<T>`, or `Rc<T>` by cloning from a `&T` where `T: CloneToUninit`.

The "Implement..." commits replace some ad-hoc conversions with `clone_from_ref` variants, which can be split out to a separate PR if desired.

This PR will conflict with https://github.com/rust-lang/rust/pull/148769 due to usage of `Layout::dangling` (which that PR is renaming to `dangling_ptr`), so they should not be rolled up together, and the one which merges later will need to be amended.

2025-11-26 18:21:00 +00:00

..

backtrace

remove redundant imports

2023-12-10 10:56:22 +08:00

collections

Rollup merge of #149204 - winningMove:patch-1, r=chenyukang

2025-11-22 18:41:25 +01:00

ffi

Implement some conversions using Box::clone_from_ref

2025-11-19 13:34:03 -06:00

fs

test: Use an ignore message for fs Android skips

2025-11-19 16:29:48 -06:00

hash

remove const_hash feature leftovers

2024-11-02 11:27:14 +01:00

io

std: move kernel_copy to sys

2025-11-17 17:44:21 +01:00

net

Rollup merge of #146937 - joboet:gethostname, r=Mark-Simulacrum

2025-09-29 21:42:41 +02:00

num

Expand pow docs with special-case tests

2025-11-10 14:56:05 +09:00

os

Document Error::{new,other} as to be avoided in pre_exec

2025-11-15 12:30:16 +03:00

prelude

Make derive_const usable within libcore again

2025-07-17 15:42:54 +00:00

process

Fix test suite in iOS/tvOS/watchOS/visionOS simulator

2025-09-19 13:55:03 +02:00

sync

Add #[rustc_should_not_be_called_on_const_items] to std methods

2025-11-22 14:48:35 +01:00

sys

Auto merge of #149079 - zachs18:clone_from_ref, r=Mark-Simulacrum

2025-11-26 18:21:00 +00:00

sys_common

Implement Debug for EncodeWide

2025-09-16 13:11:34 -06:00

thread

add link to Builder (code review improvement)

2025-10-16 09:07:57 -04:00

alloc.rs

Support #[alloc_error_handler] without the allocator shim

2025-10-10 13:04:53 +00:00

ascii.rs

Reformat using the new identifier sorting from rustfmt

2024-09-22 19:11:29 -04:00

backtrace.rs

Fix new function_casts_as_integer lint errors in core, std, panic_unwind and compiler crates

2025-11-10 16:38:28 +01:00

bstr.rs

Implement ByteStr and ByteString types

2025-01-11 06:35:21 +02:00

env.rs

Fix missing double-quote in std::env::consts::OS values

2025-11-24 18:02:24 +01:00

error.rs

Move std::error unit tests to integration tests

2025-01-26 10:28:04 +00:00

fs.rs

Add missing trailing period to RustDoc for fn create_dir().

2025-11-19 11:03:00 +01:00

keyword_docs.rs

Document fully-qualified syntax in as' keyword doc

2025-10-03 17:31:55 +03:00

lib.miri.rs

add 'x.py miri', and make it work for 'library/{core,alloc,std}'

2024-04-03 20:27:20 +02:00

lib.rs

Add Box::(try_)clone_from_ref(_in)

2025-11-19 13:34:00 -06:00

macros.rs

Revert "feat: implement hash_map! macro"

2025-10-23 12:37:53 -07:00

panic.rs

Update CURRENT_RUSTC_VERSION post-bump

2025-09-26 18:41:32 -04:00

panicking.rs

std: use a non-poisoning RwLock for the panic hook

2025-11-08 09:27:30 +01:00

pat.rs

Add pattern types to parser

2024-04-08 11:57:17 +00:00

path.rs

Implement some conversions using Box::clone_from_ref

2025-11-19 13:34:03 -06:00

process.rs

std: merge definitions of StdioPipes

2025-09-21 19:45:46 +02:00

random.rs

random: Provide a Distribution<T> trait

2025-07-11 10:21:34 -07:00

rt.rs

Change the cfg to a dash

2025-09-21 13:12:20 -04:00

test_helpers.rs

std: get rid of sys_common::io

2025-02-07 16:54:07 +01:00

time.rs

Fix documentation of Instant::now on mac

2025-10-10 20:01:03 +01:00