7 commits

Author	SHA1	Message	Date
Jack Wrenn	3aa14e3b2e	Compute transmutability from rustc_target::abi::Layout ... In its first step of computing transmutability, `rustc_transmutability` constructs a byte-level representation of type layout (`Tree`). Previously, this representation was computed for ADTs by inspecting the ADT definition and performing our own layout computations. This process was error-prone, verbose, and limited our ability to analyze many types (particularly default-repr types). In this PR, we instead construct `Tree`s from `rustc_target::abi::Layout`s. This helps ensure that layout optimizations are reflected our analyses, and increases the kinds of types we can now analyze, including: - default repr ADTs - transparent unions - `UnsafeCell`-containing types Overall, this PR expands the expressvity of `rustc_transmutability` to be much closer to the transmutability analysis performed by miri. Future PRs will work to close the remaining gaps (e.g., support for `Box`, raw pointers, `NonZero*`, coroutines, etc.).	2024-04-08 15:36:52 +00:00
Jack Wrenn	23ab1bda92	safe transmute: revise safety analysis ... Migrate to a simplified safety analysis that does not use visibility. Closes https://github.com/rust-lang/project-safe-transmute/issues/15	2024-02-27 16:22:32 +00:00
George-lewis	d56cdd48cb	Bless tests ... Update tests	2024-01-13 12:46:58 -05:00
Nilstrieb	41e8d152dc	Show number in error message even for one error ... Co-authored-by: Adrian <adrian.iosdev@gmail.com>	2023-11-24 19:15:52 +01:00
Bryan Garza	f4cf8f65a5	Safe Transmute: Refactor error handling and Answer type ... - Create `Answer` type that is not just a type alias of `Result` - Remove a usage of `map_layouts` to make the code easier to read - Don't hide errors related to Unknown Layout when computing transmutability	2023-06-12 16:56:21 -07:00
Michael Goulet	950b47fb96	Render missing generics suggestion verbosely	2023-01-12 22:04:30 +00:00
Albert Larsan	cf2dff2b1e	Move /src/test to /tests	2023-01-11 09:32:08 +00:00