Commit Graph

5 Commits

Author SHA1 Message Date
Gray Olson
1fb245c926
rename NoPadding to NoUninit and clarify docs (#95) 2022-03-29 21:25:51 -06:00
Gray Olson
1652a2dcd2
Support unions in derive macros (#94)
* allow deriving traits on unions in some cases

* basic union tests for nopadding and anybitpattern

* implement derives for unions for more traits

* remove Pod and AnyBitPattern derives for unions due to possible unsoundness
2022-03-29 20:01:48 -06:00
Gray Olson
b472189ff8
Add NoPadding, AnyBitPattern, and CheckedBitPattern traits (#91)
* add MaybePod and NoPadding traits

* MaybePod and NoPadding derive macros

* fix doctest

* fmt

* fix bad doc link

* move new casting functions into separate modules

* fmt

* fix doctest and derive test

* remove relaxed module, add anybitpattern

* rename MaybePod to CheckedCastFromPod

* rename checked casting functions

* rework CheckedCastFromPod into CheckedBitPattern

* add anybitpattern derive, fix up other derives

* fix doctest

* fix derive trait of bits type

* export AnyBitPattern derive

* export anybitpattern from traits

* actually export derive macro for AnyBitPattern

* make bits struct pub because of type leaking rules

* allow clippy lint in derive

* add copy bound to CheckedBitPattern

* - replace Pod bounds with NoPadding+AnyBitPattern
- add try and panic versions of checked cast functions
- slightly update docs

* fix derive tests

* - adapt the allocation module cast functions as well
- as part of that, make AnyBitPattern a subtrait of Zeroable
- AnyBitPattern derive also derives Zeroable

* @JakobDegen and @zakarumych nits

* superset -> subset on CheckedBitPattern and NoPadding docs

* derive Debug on generated `Bits` structs, which can be useful for debugging failures

* don't derive debug on spirv target arch

* make it work on 1.34

* merge conflicts

* fix erroneous behavior in doctest
2022-03-29 17:01:02 -06:00
Robin Appelman
24b71e078f
add derive macro for Contiguous (#31) 2020-08-21 16:08:34 -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