Commit Graph

16 Commits

Author SHA1 Message Date
zachs18
09dd2ffd68
Add cast_{arc,rc} (and slice and try), and {wrap,peel}_{arc,rc}. (#132)
* Add `allocation::{try_,}cast_{arc,rc}`, and add `{wrap,peel}_{arc,rc}` to `TransparentWrapperAlloc`.

* Avoid intermediate slice reference in `try_cast_slice_{arc,rc}`.

* remove `unsafe` block; run `cargo +nightly fmt` (ignoring files I didn't modify)

* Make `cast_rc` (etc) have the same bounds as `cast_mut`, due to the existence of `Rc::get_mut_unchecked`.
2022-09-01 17:23:28 -06:00
Waffle Maybe
331762b014
run cargo fmt (#120) 2022-07-24 09:27:49 -06:00
Waffle Maybe
0fe2b2c568
Add {wrap,peel}_box functions to TransparentWrapperAlloc (#119)
* Add `{wrap,peel}_box` functions to `TransparentWrapperAlloc`

* Add tests for `{wrap,peel}_box`
2022-07-23 21:09:32 -06:00
Edward
abe55e525e
feat: add TransparentWrapperAlloc trait (#111)
* feat: add TransparentWrapperAlloc trait

* implements wrap_vec and peel_vec

* fix: review comments

* remote asserts as they don't do anything
* avoid issue with stacked borrows
2022-06-28 17:55:31 -06:00
Christopher Durham
1a4c11a675
Replace unsound usage of transmute_copy (#72)
* Use transmute! to enforce safer transmute_copy use

* Test fix for #71
2021-07-22 23:12:56 -06:00
Lokathor
99ecb1f6cb rename "unwrap" to "peel". 2021-06-10 14:05:15 -06:00
Connor Horman
cd8dbd64e9
Attach min_const_generics to a crate feature (#63)
* Attach min_const_generics to a crate feature

* Remove `min_const_generics` detection logic
2021-06-05 08:25:57 -06:00
Luis Wirth
30a96066fa
[Feature] extend TransparentWrapper conversion functions (#58)
* update rustfmt.toml

replace `merge_imports = true` (deprecated) with `imports_granularity = "Crate"`

* run `cargo +nightly fmt`

* rewrite docs and rename `Wrapped` to `Inner`

rewriting some docs for conciseness

rename `Wrapped` to `Inner`, because it's hard to visually differentiate between
`Wrapper` and `Wrapped`

* impl missing `TransparentWrapper::wrap_{}` fns

Implement 3 new wrapping functions on `TransparentWrapper` providing new
conversions.

- `TransparentWrapper::wrap(s: Inner) -> Self`
- `TransparentWrapper::wrap_slice(s: &[Inner]) -> &[Self]`
- `TransparentWrapper::wrap_slice_mut(s: &mut [Inner]) -> &mut [Self]`

* impl `TransparentWrapper::unwrap_{}` fns

Implement counterparts to `TransparentWrapper::wrap_{}` functions
providing reverse conversions.

- `TransparentWrapper::unwrap(self) -> Inner`
- `TransparentWrapper::unwrap_ref(&self) -> &Inner`
- `TransparentWrapper::unwrap_mut(&mut self) -> &mut Inner`
- `TransparentWrapper::unwrap_slice(s: &[Self]) -> &[Inner]`
- `TransparentWrapper::unwrap_slice_mut(s: &mut [Self]) -> &mut [Inner]`

* add `TransparentWrapper` UB test

This test is only for MIRI to check all trait functions on
`TransparentWrapper` if they cause any UB.
The output of the functions is not checked.

* small `TransparentWrapper` doc adjustments

* change fn signature on `TransparentWrapper`

Methods on `TransparentWrapper` trait are now associated functions.
They now take `Self` instead of `self` as argument)

- `TransparentWrapper::unwrap(s: Self)`
- `TransparentWrapper::unwrap_ref(s: &Self)`
- `TransparentWrapper::unwrap_mut(s: &mut Self)`
2021-03-28 23:11:13 -06:00
Marvin Löbel
92ce415317
Prevent try_zeroed_box<T>() from reserving size_of<T>() space on the stack. (#43)
* Add test

* Change try_zeroed_box implementation to not allocate space for T on the stack

* Add second test
2020-10-21 14:11:09 -06:00
Thom Chiovoloni
64cc5973c4
Add more tests, overhaul CI, and fix plug soundness hole in bytemuck::offset_of! (#38)
* Ensure functions that take generic <A, B> don't call them <T, U>

* Plug soundness hole in offset_of with safe_packed_borrows lint

* Add some more tests I noticed were missing (still many missing)

* Make CI way more thorough

* Fix running MSRV tests with unsupported `--feature`s

* Disable derive tests in sanitizers, and fix miri ci
2020-09-06 18:56:41 -06:00
Robin Appelman
cf944452b7
add basic derive macro for Pod, Zeroable and TransparentWrapper for structs (#30)
* add basic derive macro for Pod and Zeroable for structs

* add derive macro for TransparentWrapper

* use core::mem::size_of instead of std::mem::size_of in generated code

* cleanup error handling a bit

* remove unneeded iter logic

* remove unneeded clone and order impl

* fix generics

* fix doc typo

Co-authored-by: Lucien Greathouse <me@lpghatguy.com>

* remove unneeded lifetime anotation

* use unreachable for already rejected patch

Co-authored-by: Lucien Greathouse <me@lpghatguy.com>
2020-08-20 19:04:36 -06:00
Lokathor
c9a387a8da update offset_of to have 2-arg and 3-arg versions. 2020-07-23 20:21:09 -06:00
Thom Chiovoloni
e415a28966 Duplicate the doctests for the sake of miri 2020-01-11 08:01:58 -08:00
Lokathor
79143a6295 cargo fmt is a strict one 2019-11-03 23:55:51 -07:00
Lokathor
0e3948b8b8
Update cast_slice_tests.rs 2019-11-01 10:39:32 -06:00
Lokathor
b199fad411 Create cast_slice_tests.rs 2019-10-26 04:22:15 -06:00