transmutability: shift abstraction boundary #142040
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☔ The latest upstream changes (presumably #142099) made this pull request unmergeable. Please resolve the merge conflicts. |
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Previously, `rustc_transmute`'s layout representations were genericized over `R`, a reference. Now, it's instead genericized over representations of type and region. This allows us to move reference transmutability logic from `rustc_trait_selection` to `rustc_transmutability` (and thus unit test it independently of the compiler), and — in a follow-up PR — will make it possible to support analyzing function pointer transmutability with minimal surgery.
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@bors r+ rollup |
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Rollup of 10 pull requests Successful merges: - #141307 (Add method to retrieve body of closure in stable-mir) - #142040 (transmutability: shift abstraction boundary) - #142066 (More simple 2015 edition test decoupling) - #142157 (rustc_resolve: Improve `resolve_const_param_in_non_trivial_anon_const` wording) - #142217 (`tests/ui`: A New Order [10/N]) - #142219 (`tests/ui`: A New Order [11/N]) - #142261 (use correct edition when warning for unsafe attributes) - #142303 (Assorted bootstrap cleanups (step 1)) - #142318 (Cleanup `rust-src` remapping and real dir) - #142352 (compiler: Make `c_int_width` an integer) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of #142040 - jswrenn:transmute-ty-region-generic, r=compiler-errors transmutability: shift abstraction boundary Previously, `rustc_transmute`'s layout representations were genericized over `R`, a reference. Now, it's instead genericized over representations of type and region. This allows us to move reference transmutability logic from `rustc_trait_selection` to `rustc_transmutability` (and thus unit test it independently of the compiler), and — in a follow-up PR — will make it possible to support analyzing function pointer transmutability with minimal surgery. r? `@compiler-errors`
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Previously,
rustc_transmute's layout representations were genericized overR, a reference. Now, it's instead genericized over representations of type and region. This allows us to move reference transmutability logic fromrustc_trait_selectiontorustc_transmutability(and thus unit test it independently of the compiler), and — in a follow-up PR — will make it possible to support analyzing function pointer transmutability with minimal surgery.r? @compiler-errors