9 Commits

Author	SHA1	Message	Date
John Nunley	518baf9c0b	Allow repr(transparent) to be used generically in derive(Pod) (#139) ... * Enabled transparent generics * Move trait checks to implementation block * Replace add_trait_marker impl	2022-11-03 07:53:01 -06:00
Dennis Duda	f1571512d2	fix try_pod_read_unaligned... never having worked correctly (#138) ... It seems like a copy-paste error has happened between `try_from_bytes`/`try_from_bytes_mut` and `try_pod_read_unaligned`, causing `internal::try_pod_read_unaligned` to try to read a &T::Bits instead of a T::Bits, usually failing with a `SizeMismatch` error. In the worst case, this allows UB in safe code by having a type allowing any bit pattern and being pointer-sized.	2022-10-30 16:06:55 -06:00
Daniel Henry-Mantilla	d47d527ac2	Fix regression #127: support align in reprs again (#128)	2022-08-16 12:42:07 -06:00
Tom Dohrmann	2c97676bfc	support deriving Pod for packed generic types. (#123) ... * improve `#[repr]` parsing * allow deriving `Pod` for packed generic types * Revert "Update Cargo.toml" This reverts commit 6632bcef2c.	2022-08-07 14:32:00 -06:00
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