8 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	dc35339514	Safe Transmute: Use 'not yet supported', not 'unspecified' in errors ... We can (and will) support analyzing the transmutability of types whose layouts aren't completely specified by its repr. This change ensures that the error messages remain sensible after this support lands.	2024-03-15 17:42:29 +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
许杰友 Jieyou Xu (Joe)	ec2cc761bc	[AUTO-GENERATED] Migrate ui tests from // to //@ directives	2024-02-16 20:02:50 +00:00
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	36febe1f4d	Improve safe transmute error reporting ... This patch updates the error reporting when Safe Transmute is not possible between 2 types by including the reason. Also, fix some small bugs that occur when computing the `Answer` for transmutability.	2023-04-13 21:57:08 +00:00
Michael Goulet	a58682d7cc	Specify what 'this' actually is	2023-02-21 05:21:07 +00:00
Albert Larsan	cf2dff2b1e	Move /src/test to /tests	2023-01-11 09:32:08 +00:00