Split core's PanicInfo and std's PanicInfo by m-ou-se · Pull Request #115974 · rust-lang/rust
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…try> Split core's PanicInfo and std's PanicInfo This experimental PR is based on some thoughts I was having here: rust-lang#115561 (comment) --- `PanicInfo` is used in two ways: 1. As argument to the `#[panic_handler]` in `no_std` context. 2. As argument to the [panic hook](https://doc.rust-lang.org/stable/std/panic/fn.set_hook.html) in `std` context. In situation 1, the `PanicInfo` always has a *message* (of type `fmt::Arguments`), but never a *payload* (of type `&dyn Any`). In situation 2, the `PanicInfo` always has a *payload* (which is often a `String`), but not always a *message*. Having these as the same type is annoying. It means we can't add `.message()` to the first one without also finding a way to properly support it on the second one. (Which is what rust-lang#66745 is blocked on.) It also means that, because the implementation is in `core`, the implementation cannot make use of the `String` type (which doesn't exist in `core`): https://github.com/rust-lang/rust/blob/0692db1a9082380e027f354912229dfd6af37e78/library/core/src/panic/panic_info.rs#L171-L172 This also means that we cannot easily add a useful method like `PanicInfo::payload_as_str() -> Option<&str>` that works for both `&'static str` and `String` payloads. I don't see any good reasons for these to be the same type, other than historical reasons. This PR is an experiment to see what happens if we make 1 and 2 separate types. To try to avoid breaking existing code, they are still named `core::panic::PanicInfo` and `std::panic::PanicInfo`, in the hope that people write the former when used in `#[panic_handler]` (since then they'd be using `no_std`) and the latter when used in a panic hook (since then they're definitely using `std`). Let's see how much explodes. :)
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…try> Split core's PanicInfo and std's PanicInfo This experimental PR is based on some thoughts I was having here: rust-lang#115561 (comment) --- `PanicInfo` is used in two ways: 1. As argument to the `#[panic_handler]` in `no_std` context. 2. As argument to the [panic hook](https://doc.rust-lang.org/stable/std/panic/fn.set_hook.html) in `std` context. In situation 1, the `PanicInfo` always has a *message* (of type `fmt::Arguments`), but never a *payload* (of type `&dyn Any`). In situation 2, the `PanicInfo` always has a *payload* (which is often a `String`), but not always a *message*. Having these as the same type is annoying. It means we can't add `.message()` to the first one without also finding a way to properly support it on the second one. (Which is what rust-lang#66745 is blocked on.) It also means that, because the implementation is in `core`, the implementation cannot make use of the `String` type (which doesn't exist in `core`): https://github.com/rust-lang/rust/blob/0692db1a9082380e027f354912229dfd6af37e78/library/core/src/panic/panic_info.rs#L171-L172 This also means that we cannot easily add a useful method like `PanicInfo::payload_as_str() -> Option<&str>` that works for both `&'static str` and `String` payloads. I don't see any good reasons for these to be the same type, other than historical reasons. This PR is an experiment to see what happens if we make 1 and 2 separate types. To try to avoid breaking existing code, they are still named `core::panic::PanicInfo` and `std::panic::PanicInfo`, in the hope that people write the former when used in `#[panic_handler]` (since then they'd be using `no_std`) and the latter when used in a panic hook (since then they're definitely using `std`). Let's see how much explodes. :)
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Status: This is awaiting some action (such as code changes or more information) from the author. Status: Ongoing experiment that does not require reviewing and won't be merged in its current state.labels
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Aug 20, 2024bors added a commit to rust-lang-ci/rust that referenced this pull request
Aug 24, 2024
Pass `fmt::Arguments` by reference to `PanicInfo` and `PanicMessage` Resolves rust-lang#129330 For some reason after rust-lang#115974 and rust-lang#126732 optimizations applied to panic handler became worse and compiler stopped removing panic locations if they are not used in the panic message. This PR fixes that and maybe we can merge it into beta before rust 1.81 is released. Note: optimization only works with `lto = "fat"`. r? libs-api
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tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request
Sep 11, 2024
This MR contains the following updates: | Package | Update | Change | |---|---|---| | [rust](https://github.com/rust-lang/rust) | minor | `1.80.1` -> `1.81.0` | MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot). **Proposed changes to behavior should be submitted there as MRs.** --- ### Release Notes <details> <summary>rust-lang/rust (rust)</summary> ### [`v1.81.0`](https://github.com/rust-lang/rust/blob/HEAD/RELEASES.md#Version-1810-2024-09-05) [Compare Source](rust-lang/rust@1.80.1...1.81.0) \========================== <a id="1.81.0-Language"></a> ## Language - [Abort on uncaught panics in `extern "C"` functions.](rust-lang/rust#116088) - [Fix ambiguous cases of multiple `&` in elided self lifetimes.](rust-lang/rust#117967) - [Stabilize `#[expect]` for lints (RFC 2383),](rust-lang/rust#120924) like `#[allow]` with a warning if the lint is *not* fulfilled. - [Change method resolution to constrain hidden types instead of rejecting method candidates.](rust-lang/rust#123962) - [Bump `elided_lifetimes_in_associated_constant` to deny.](rust-lang/rust#124211) - [`offset_from`: always allow pointers to point to the same address.](rust-lang/rust#124921) - [Allow constraining opaque types during subtyping in the trait system.](rust-lang/rust#125447) - [Allow constraining opaque types during various unsizing casts.](rust-lang/rust#125610) - [Deny keyword lifetimes pre-expansion.](rust-lang/rust#126762) <a id="1.81.0-Compiler"></a> ## Compiler - [Make casts of pointers to trait objects stricter.](rust-lang/rust#120248) - [Check alias args for well-formedness even if they have escaping bound vars.](rust-lang/rust#123737) - [Deprecate no-op codegen option `-Cinline-threshold=...`.](rust-lang/rust#124712) - [Re-implement a type-size based limit.](rust-lang/rust#125507) - [Properly account for alignment in `transmute` size checks.](rust-lang/rust#125740) - [Remove the `box_pointers` lint.](rust-lang/rust#126018) - [Ensure the interpreter checks bool/char for validity when they are used in a cast.](rust-lang/rust#126265) - [Improve coverage instrumentation for functions containing nested items.](rust-lang/rust#127199) - Target changes: - [Add Tier 3 `no_std` Xtensa targets:](rust-lang/rust#125141) `xtensa-esp32-none-elf`, `xtensa-esp32s2-none-elf`, `xtensa-esp32s3-none-elf` - [Add Tier 3 `std` Xtensa targets:](rust-lang/rust#126380) `xtensa-esp32-espidf`, `xtensa-esp32s2-espidf`, `xtensa-esp32s3-espidf` - [Add Tier 3 i686 Redox OS target:](rust-lang/rust#126192) `i686-unknown-redox` - [Promote `arm64ec-pc-windows-msvc` to Tier 2.](rust-lang/rust#126039) - [Promote `loongarch64-unknown-linux-musl` to Tier 2 with host tools.](rust-lang/rust#126298) - [Enable full tools and profiler for LoongArch Linux targets.](rust-lang/rust#127078) - [Unconditionally warn on usage of `wasm32-wasi`.](rust-lang/rust#126662) (see compatibility note below) - Refer to Rust's \[platform support page]\[platform-support-doc] for more information on Rust's tiered platform support. <a id="1.81.0-Libraries"></a> ## Libraries - [Split core's `PanicInfo` and std's `PanicInfo`.](rust-lang/rust#115974) (see compatibility note below) - [Generalize `{Rc,Arc}::make_mut()` to unsized types.](rust-lang/rust#116113) - [Replace sort implementations with stable `driftsort` and unstable `ipnsort`.](rust-lang/rust#124032) All `slice::sort*` and `slice::select_nth*` methods are expected to see significant performance improvements. See the [research project](https://github.com/Voultapher/sort-research-rs) for more details. - [Document behavior of `create_dir_all` with respect to empty paths.](rust-lang/rust#125112) - [Fix interleaved output in the default panic hook when multiple threads panic simultaneously.](rust-lang/rust#127397) <a id="1.81.0-Stabilized-APIs"></a> ## Stabilized APIs - [`core::error`](https://doc.rust-lang.org/stable/core/error/index.html) - [`hint::assert_unchecked`](https://doc.rust-lang.org/stable/core/hint/fn.assert_unchecked.html) - [`fs::exists`](https://doc.rust-lang.org/stable/std/fs/fn.exists.html) - [`AtomicBool::fetch_not`](https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicBool.html#method.fetch_not) - [`Duration::abs_diff`](https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.abs_diff) - [`IoSlice::advance`](https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance) - [`IoSlice::advance_slices`](https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance_slices) - [`IoSliceMut::advance`](https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance) - [`IoSliceMut::advance_slices`](https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance_slices) - [`PanicHookInfo`](https://doc.rust-lang.org/stable/std/panic/struct.PanicHookInfo.html) - [`PanicInfo::message`](https://doc.rust-lang.org/stable/core/panic/struct.PanicInfo.html#method.message) - [`PanicMessage`](https://doc.rust-lang.org/stable/core/panic/struct.PanicMessage.html) These APIs are now stable in const contexts: - [`char::from_u32_unchecked`](https://doc.rust-lang.org/stable/core/char/fn.from_u32\_unchecked.html) (function) - [`char::from_u32_unchecked`](https://doc.rust-lang.org/stable/core/primitive.char.html#method.from_u32\_unchecked) (method) - [`CStr::count_bytes`](https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.count_bytes) - [`CStr::from_ptr`](https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.from_ptr) <a id="1.81.0-Cargo"></a> ## Cargo - [Generated `.cargo_vcs_info.json` is always included, even when `--allow-dirty` is passed.](rust-lang/cargo#13960) - [Disallow `package.license-file` and `package.readme` pointing to non-existent files during packaging.](rust-lang/cargo#13921) - [Disallow passing `--release`/`--debug` flag along with the `--profile` flag.](rust-lang/cargo#13971) - [Remove `lib.plugin` key support in `Cargo.toml`. Rust plugin support has been deprecated for four years and was removed in 1.75.0.](rust-lang/cargo#13902) <a id="1.81.0-Compatibility-Notes"></a> ## Compatibility Notes - Usage of the `wasm32-wasi` target will now issue a compiler warning and request users switch to the `wasm32-wasip1` target instead. Both targets are the same, `wasm32-wasi` is only being renamed, and this [change to the WASI target](https://blog.rust-lang.org/2024/04/09/updates-to-rusts-wasi-targets.html) is being done to enable removing `wasm32-wasi` in January 2025. - We have renamed `std::panic::PanicInfo` to `std::panic::PanicHookInfo`. The old name will continue to work as an alias, but will result in a deprecation warning starting in Rust 1.82.0. `core::panic::PanicInfo` will remain unchanged, however, as this is now a *different type*. The reason is that these types have different roles: `std::panic::PanicHookInfo` is the argument to the [panic hook](https://doc.rust-lang.org/stable/std/panic/fn.set_hook.html) in std context (where panics can have an arbitrary payload), while `core::panic::PanicInfo` is the argument to the [`#[panic_handler]`](https://doc.rust-lang.org/nomicon/panic-handler.html) in no_std context (where panics always carry a formatted *message*). Separating these types allows us to add more useful methods to these types, such as `std::panic::PanicHookInfo::payload_as_str()` and `core::panic::PanicInfo::message()`. - The new sort implementations may panic if a type's implementation of [`Ord`](https://doc.rust-lang.org/std/cmp/trait.Ord.html) (or the given comparison function) does not implement a [total order](https://en.wikipedia.org/wiki/Total_order) as the trait requires. `Ord`'s supertraits (`PartialOrd`, `Eq`, and `PartialEq`) must also be consistent. The previous implementations would not "notice" any problem, but the new implementations have a good chance of detecting inconsistencies, throwing a panic rather than returning knowingly unsorted data. - [In very rare cases, a change in the internal evaluation order of the trait solver may result in new fatal overflow errors.](rust-lang/rust#126128) <a id="1.81.0-Internal-Changes"></a> ## Internal Changes These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools. - [Add a Rust-for Linux `auto` CI job to check kernel builds.](rust-lang/rust#125209) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this MR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this MR, check this box --- This MR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy40NDAuNyIsInVwZGF0ZWRJblZlciI6IjM3LjQ0MC43IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJSZW5vdmF0ZSBCb3QiXX0=-->
bors added a commit to rust-lang-ci/rust that referenced this pull request
Sep 18, 2024
…u-se Pass `fmt::Arguments` by reference to `PanicInfo` and `PanicMessage` Resolves rust-lang#129330 For some reason after rust-lang#115974 and rust-lang#126732 optimizations applied to panic handler became worse and compiler stopped removing panic locations if they are not used in the panic message. This PR fixes that and maybe we can merge it into beta before rust 1.81 is released. Note: optimization only works with `lto = "fat"`. r? libs-api
wip-sync pushed a commit to NetBSD/pkgsrc-wip that referenced this pull request
Sep 22, 2024
Pkgsrc changes: * Adapt patches, apply to new vendored crates where needed. * Back-port rust pull request 130110, "make dist vendoring configurable" * Disable "dist vendoring", otherwise cargo would try to access the network during the build phase. Upstream changes: Version 1.81.0 (2024-09-05) ========================== Language -------- - [Abort on uncaught panics in `extern "C"` functions.] (rust-lang/rust#116088) - [Fix ambiguous cases of multiple `&` in elided self lifetimes.] (rust-lang/rust#117967) - [Stabilize `#[expect]` for lints (RFC 2383),] (rust-lang/rust#120924) like `#[allow]` with a warning if the lint is _not_ fulfilled. - [Change method resolution to constrain hidden types instead of rejecting method candidates.] (rust-lang/rust#123962) - [Bump `elided_lifetimes_in_associated_constant` to deny.] (rust-lang/rust#124211) - [`offset_from`: always allow pointers to point to the same address.] (rust-lang/rust#124921) - [Allow constraining opaque types during subtyping in the trait system.] (rust-lang/rust#125447) - [Allow constraining opaque types during various unsizing casts.] (rust-lang/rust#125610) - [Deny keyword lifetimes pre-expansion.] (rust-lang/rust#126762) Compiler -------- - [Make casts of pointers to trait objects stricter.] (rust-lang/rust#120248) - [Check alias args for well-formedness even if they have escaping bound vars.] (rust-lang/rust#123737) - [Deprecate no-op codegen option `-Cinline-threshold=...`.] (rust-lang/rust#124712) - [Re-implement a type-size based limit.] (rust-lang/rust#125507) - [Properly account for alignment in `transmute` size checks.] (rust-lang/rust#125740) - [Remove the `box_pointers` lint.] (rust-lang/rust#126018) - [Ensure the interpreter checks bool/char for validity when they are used in a cast.] (rust-lang/rust#126265) - [Improve coverage instrumentation for functions containing nested items.] (rust-lang/rust#127199) - Target changes: - [Add Tier 3 `no_std` Xtensa targets:] (rust-lang/rust#125141) `xtensa-esp32-none-elf`, `xtensa-esp32s2-none-elf`, `xtensa-esp32s3-none-elf` - [Add Tier 3 `std` Xtensa targets:] (rust-lang/rust#126380) `xtensa-esp32-espidf`, `xtensa-esp32s2-espidf`, `xtensa-esp32s3-espidf` - [Add Tier 3 i686 Redox OS target:] (rust-lang/rust#126192) `i686-unknown-redox` - [Promote `arm64ec-pc-windows-msvc` to Tier 2.] (rust-lang/rust#126039) - [Promote `wasm32-wasip2` to Tier 2.] (rust-lang/rust#126967) - [Promote `loongarch64-unknown-linux-musl` to Tier 2 with host tools.] (rust-lang/rust#126298) - [Enable full tools and profiler for LoongArch Linux targets.] (rust-lang/rust#127078) - [Unconditionally warn on usage of `wasm32-wasi`.] (rust-lang/rust#126662) (see compatibility note below) - Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Split core's `PanicInfo` and std's `PanicInfo`.] (rust-lang/rust#115974) (see compatibility note below) - [Generalize `{Rc,Arc}::make_mut()` to unsized types.] (rust-lang/rust#116113) - [Replace sort implementations with stable `driftsort` and unstable `ipnsort`.] (rust-lang/rust#124032) All `slice::sort*` and `slice::select_nth*` methods are expected to see significant performance improvements. See the [research project] (https://github.com/Voultapher/sort-research-rs) for more details. - [Document behavior of `create_dir_all` with respect to empty paths.] (rust-lang/rust#125112) - [Fix interleaved output in the default panic hook when multiple threads panic simultaneously.] (rust-lang/rust#127397) - Fix `Command`'s batch files argument escaping not working when file name has trailing whitespace or periods (CVE-2024-43402). Stabilized APIs --------------- - [`core::error`] (https://doc.rust-lang.org/stable/core/error/index.html) - [`hint::assert_unchecked`] (https://doc.rust-lang.org/stable/core/hint/fn.assert_unchecked.html) - [`fs::exists`] (https://doc.rust-lang.org/stable/std/fs/fn.exists.html) - [`AtomicBool::fetch_not`] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicBool.html#method.fetch_not) - [`Duration::abs_diff`] (https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.abs_diff) - [`IoSlice::advance`] (https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance) - [`IoSlice::advance_slices`] (https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance_slices) - [`IoSliceMut::advance`] (https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance) - [`IoSliceMut::advance_slices`] (https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance_slices) - [`PanicHookInfo`] (https://doc.rust-lang.org/stable/std/panic/struct.PanicHookInfo.html) - [`PanicInfo::message`] (https://doc.rust-lang.org/stable/core/panic/struct.PanicInfo.html#method.message) - [`PanicMessage`] (https://doc.rust-lang.org/stable/core/panic/struct.PanicMessage.html) These APIs are now stable in const contexts: - [`char::from_u32_unchecked`] (https://doc.rust-lang.org/stable/core/char/fn.from_u32_unchecked.html) (function) - [`char::from_u32_unchecked`] (https://doc.rust-lang.org/stable/core/primitive.char.html#method.from_u32_unchecked) (method) - [`CStr::count_bytes`] (https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.count_bytes) - [`CStr::from_ptr`] (https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.from_ptr) Cargo ----- - [Generated `.cargo_vcs_info.json` is always included, even when `--allow-dirty` is passed.] (rust-lang/cargo#13960) - [Disallow `package.license-file` and `package.readme` pointing to non-existent files during packaging.] (rust-lang/cargo#13921) - [Disallow passing `--release`/`--debug` flag along with the `--profile` flag.] (rust-lang/cargo#13971) - [Remove `lib.plugin` key support in `Cargo.toml`. Rust plugin support has been deprecated for four years and was removed in 1.75.0.] (rust-lang/cargo#13902) Compatibility Notes ------------------- * Usage of the `wasm32-wasi` target will now issue a compiler warning and request users switch to the `wasm32-wasip1` target instead. Both targets are the same, `wasm32-wasi` is only being renamed, and this [change to the WASI target] (https://blog.rust-lang.org/2024/04/09/updates-to-rusts-wasi-targets.html) is being done to enable removing `wasm32-wasi` in January 2025. * We have renamed `std::panic::PanicInfo` to `std::panic::PanicHookInfo`. The old name will continue to work as an alias, but will result in a deprecation warning starting in Rust 1.82.0. `core::panic::PanicInfo` will remain unchanged, however, as this is now a *different type*. The reason is that these types have different roles: `std::panic::PanicHookInfo` is the argument to the [panic hook](https://doc.rust-lang.org/stable/std/panic/fn.set_hook.html) in std context (where panics can have an arbitrary payload), while `core::panic::PanicInfo` is the argument to the [`#[panic_handler]`](https://doc.rust-lang.org/nomicon/panic-handler.html) in no_std context (where panics always carry a formatted *message*). Separating these types allows us to add more useful methods to these types, such as `std::panic::PanicHookInfo::payload_as_str()` and `core::panic::PanicInfo::message()`. * The new sort implementations may panic if a type's implementation of [`Ord`](https://doc.rust-lang.org/std/cmp/trait.Ord.html) (or the given comparison function) does not implement a [total order](https://en.wikipedia.org/wiki/Total_order) as the trait requires. `Ord`'s supertraits (`PartialOrd`, `Eq`, and `PartialEq`) must also be consistent. The previous implementations would not "notice" any problem, but the new implementations have a good chance of detecting inconsistencies, throwing a panic rather than returning knowingly unsorted data. * [In very rare cases, a change in the internal evaluation order of the trait solver may result in new fatal overflow errors.] (rust-lang/rust#126128) Internal Changes ---------------- These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools. - [Add a Rust-for Linux `auto` CI job to check kernel builds.] (rust-lang/rust#125209)
netbsd-srcmastr pushed a commit to NetBSD/pkgsrc that referenced this pull request
Nov 24, 2024
Pkgsrc changes: * Adapt patches, apply to new vendored crates where needed. * Back-port rust pull request 130110, "make dist vendoring configurable" * Disable "dist vendoring", otherwise cargo would try to access the network during the build phase. Upstream changes: Version 1.81.0 (2024-09-05) ========================== Language -------- - [Abort on uncaught panics in `extern "C"` functions.] (rust-lang/rust#116088) - [Fix ambiguous cases of multiple `&` in elided self lifetimes.] (rust-lang/rust#117967) - [Stabilize `#[expect]` for lints (RFC 2383),] (rust-lang/rust#120924) like `#[allow]` with a warning if the lint is _not_ fulfilled. - [Change method resolution to constrain hidden types instead of rejecting method candidates.] (rust-lang/rust#123962) - [Bump `elided_lifetimes_in_associated_constant` to deny.] (rust-lang/rust#124211) - [`offset_from`: always allow pointers to point to the same address.] (rust-lang/rust#124921) - [Allow constraining opaque types during subtyping in the trait system.] (rust-lang/rust#125447) - [Allow constraining opaque types during various unsizing casts.] (rust-lang/rust#125610) - [Deny keyword lifetimes pre-expansion.] (rust-lang/rust#126762) Compiler -------- - [Make casts of pointers to trait objects stricter.] (rust-lang/rust#120248) - [Check alias args for well-formedness even if they have escaping bound vars.] (rust-lang/rust#123737) - [Deprecate no-op codegen option `-Cinline-threshold=...`.] (rust-lang/rust#124712) - [Re-implement a type-size based limit.] (rust-lang/rust#125507) - [Properly account for alignment in `transmute` size checks.] (rust-lang/rust#125740) - [Remove the `box_pointers` lint.] (rust-lang/rust#126018) - [Ensure the interpreter checks bool/char for validity when they are used in a cast.] (rust-lang/rust#126265) - [Improve coverage instrumentation for functions containing nested items.] (rust-lang/rust#127199) - Target changes: - [Add Tier 3 `no_std` Xtensa targets:] (rust-lang/rust#125141) `xtensa-esp32-none-elf`, `xtensa-esp32s2-none-elf`, `xtensa-esp32s3-none-elf` - [Add Tier 3 `std` Xtensa targets:] (rust-lang/rust#126380) `xtensa-esp32-espidf`, `xtensa-esp32s2-espidf`, `xtensa-esp32s3-espidf` - [Add Tier 3 i686 Redox OS target:] (rust-lang/rust#126192) `i686-unknown-redox` - [Promote `arm64ec-pc-windows-msvc` to Tier 2.] (rust-lang/rust#126039) - [Promote `wasm32-wasip2` to Tier 2.] (rust-lang/rust#126967) - [Promote `loongarch64-unknown-linux-musl` to Tier 2 with host tools.] (rust-lang/rust#126298) - [Enable full tools and profiler for LoongArch Linux targets.] (rust-lang/rust#127078) - [Unconditionally warn on usage of `wasm32-wasi`.] (rust-lang/rust#126662) (see compatibility note below) - Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Split core's `PanicInfo` and std's `PanicInfo`.] (rust-lang/rust#115974) (see compatibility note below) - [Generalize `{Rc,Arc}::make_mut()` to unsized types.] (rust-lang/rust#116113) - [Replace sort implementations with stable `driftsort` and unstable `ipnsort`.] (rust-lang/rust#124032) All `slice::sort*` and `slice::select_nth*` methods are expected to see significant performance improvements. See the [research project] (https://github.com/Voultapher/sort-research-rs) for more details. - [Document behavior of `create_dir_all` with respect to empty paths.] (rust-lang/rust#125112) - [Fix interleaved output in the default panic hook when multiple threads panic simultaneously.] (rust-lang/rust#127397) - Fix `Command`'s batch files argument escaping not working when file name has trailing whitespace or periods (CVE-2024-43402). Stabilized APIs --------------- - [`core::error`] (https://doc.rust-lang.org/stable/core/error/index.html) - [`hint::assert_unchecked`] (https://doc.rust-lang.org/stable/core/hint/fn.assert_unchecked.html) - [`fs::exists`] (https://doc.rust-lang.org/stable/std/fs/fn.exists.html) - [`AtomicBool::fetch_not`] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicBool.html#method.fetch_not) - [`Duration::abs_diff`] (https://doc.rust-lang.org/stable/core/time/struct.Duration.html#method.abs_diff) - [`IoSlice::advance`] (https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance) - [`IoSlice::advance_slices`] (https://doc.rust-lang.org/stable/std/io/struct.IoSlice.html#method.advance_slices) - [`IoSliceMut::advance`] (https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance) - [`IoSliceMut::advance_slices`] (https://doc.rust-lang.org/stable/std/io/struct.IoSliceMut.html#method.advance_slices) - [`PanicHookInfo`] (https://doc.rust-lang.org/stable/std/panic/struct.PanicHookInfo.html) - [`PanicInfo::message`] (https://doc.rust-lang.org/stable/core/panic/struct.PanicInfo.html#method.message) - [`PanicMessage`] (https://doc.rust-lang.org/stable/core/panic/struct.PanicMessage.html) These APIs are now stable in const contexts: - [`char::from_u32_unchecked`] (https://doc.rust-lang.org/stable/core/char/fn.from_u32_unchecked.html) (function) - [`char::from_u32_unchecked`] (https://doc.rust-lang.org/stable/core/primitive.char.html#method.from_u32_unchecked) (method) - [`CStr::count_bytes`] (https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.count_bytes) - [`CStr::from_ptr`] (https://doc.rust-lang.org/stable/core/ffi/c_str/struct.CStr.html#method.from_ptr) Cargo ----- - [Generated `.cargo_vcs_info.json` is always included, even when `--allow-dirty` is passed.] (rust-lang/cargo#13960) - [Disallow `package.license-file` and `package.readme` pointing to non-existent files during packaging.] (rust-lang/cargo#13921) - [Disallow passing `--release`/`--debug` flag along with the `--profile` flag.] (rust-lang/cargo#13971) - [Remove `lib.plugin` key support in `Cargo.toml`. Rust plugin support has been deprecated for four years and was removed in 1.75.0.] (rust-lang/cargo#13902) Compatibility Notes ------------------- * Usage of the `wasm32-wasi` target will now issue a compiler warning and request users switch to the `wasm32-wasip1` target instead. Both targets are the same, `wasm32-wasi` is only being renamed, and this [change to the WASI target] (https://blog.rust-lang.org/2024/04/09/updates-to-rusts-wasi-targets.html) is being done to enable removing `wasm32-wasi` in January 2025. * We have renamed `std::panic::PanicInfo` to `std::panic::PanicHookInfo`. The old name will continue to work as an alias, but will result in a deprecation warning starting in Rust 1.82.0. `core::panic::PanicInfo` will remain unchanged, however, as this is now a *different type*. The reason is that these types have different roles: `std::panic::PanicHookInfo` is the argument to the [panic hook](https://doc.rust-lang.org/stable/std/panic/fn.set_hook.html) in std context (where panics can have an arbitrary payload), while `core::panic::PanicInfo` is the argument to the [`#[panic_handler]`](https://doc.rust-lang.org/nomicon/panic-handler.html) in no_std context (where panics always carry a formatted *message*). Separating these types allows us to add more useful methods to these types, such as `std::panic::PanicHookInfo::payload_as_str()` and `core::panic::PanicInfo::message()`. * The new sort implementations may panic if a type's implementation of [`Ord`](https://doc.rust-lang.org/std/cmp/trait.Ord.html) (or the given comparison function) does not implement a [total order](https://en.wikipedia.org/wiki/Total_order) as the trait requires. `Ord`'s supertraits (`PartialOrd`, `Eq`, and `PartialEq`) must also be consistent. The previous implementations would not "notice" any problem, but the new implementations have a good chance of detecting inconsistencies, throwing a panic rather than returning knowingly unsorted data. * [In very rare cases, a change in the internal evaluation order of the trait solver may result in new fatal overflow errors.] (rust-lang/rust#126128) Internal Changes ---------------- These changes do not affect any public interfaces of Rust, but they represent significant improvements to the performance or internals of rustc and related tools. - [Add a Rust-for Linux `auto` CI job to check kernel builds.] (rust-lang/rust#125209)
har7an added a commit to zellij-org/zellij that referenced this pull request
Jan 25, 2025
* chore: Remove deprecated `Makefile.toml` which really should have been deleted as part of #2012. This hasn't been updated for more than 2 years now and I don't expect anyone to still use this. Our build process is now managed by `cargo xtask`. * Cargo: Update the Rust toolchain to 1.84.0 from 1.75.0 which has been deprecated for a while now. Along with this change, the `wasm32-wasi` target is no longer available (see subsequent commit for additional info). * chore: Rename `wasm32-wasi` to `wasm32-wasip1` as required by the Rust project. The `wasm32-wasi` target name has been retired and will likely be reused at a later time, although to express an entirely different target (i.e. implementation of the WASI standard). For additional information, see: - https://blog.rust-lang.org/2024/04/09/updates-to-rusts-wasi-targets.html - https://blog.rust-lang.org/2024/09/05/Rust-1.81.0.html#wasi-01-target-naming-changed * chore: Drop `rust-analysis` component from the `rust-toolchain.toml` definition. This was added way back in 2021 via 8688569, and while I'm not sure what it expressed back then, nowadays it refers to [Metadata for RLS][1], which apparently was an early language server implementation and has long since been replaced by *rust-analyzer*. We don't want to propose or enforce the use of a specific toolchain and in any case, setting this up properly is the job of a developers IDE/Editor. [1]: https://github.com/rust-lang/rustup/blob/1f06e3b31d444f3649dd51225a9d38362f7313e0/doc/user-guide/src/concepts/components.md#previous-components * chore: Adhere to type rename from `std::panic::PanicInfo` to `std::panic::PanicHookInfo`, which was introduced in Rust 1.81.0. For additional information, see: - https://releases.rs/docs/1.81.0/#compatibility-notes - rust-lang/rust#115974 * fix(utils/data): Adhere to expected case in match arm patterns, since the expression being matched against has been modified using `to_ascii_lowercase`. Hence, we cannot have upper case ASCII chars in the expressions (these arms were previously no-ops). * fix(utils): Derive `Hash` manually in `input/layout` since the `PartialEq` trait is also implemented manually. Previously the `Hash` impl wasn't consistent with the `Eq` impl, which can have weird effects when using these types in e.g. `HashMap`s or similar types. For additional information, see: - https://rust-lang.github.io/rust-clippy/master/index.html#derived_hash_with_manual_eq - https://doc.rust-lang.org/stable/std/hash/trait.Hash.html#hash-and-eq * fix(utils): Derive `Hash` manually in `pane_size` since the `PartialEq` trait is also implemented manually. Previously the `Hash` impl wasn't consistent with the `Eq` impl, which can have weird effects when using these types in e.g. `HashMap`s or similar types. For additional information, see: - https://rust-lang.github.io/rust-clippy/master/index.html#derived_hash_with_manual_eq - https://doc.rust-lang.org/stable/std/hash/trait.Hash.html#hash-and-eq * fix(server): Don't redeclare variables with their same names. Latest rust toolchains reject this code. * chore(actions): Use non-archived toolchain setup for the Rust toolchain. The previously used action has been archived over a year ago. The new one should also support reading our `rust-toolchain.toml`, so we no longer have to keep track of the toolchain in multiple places. * chore(actions): Add some space to YAML files to make them better visually parsable. * ci: Remove toolchain update Job since as far as I can tell, this isn't used any more. * ci: Fix invalid actions specification and only request an action without running other code. * CHANGELOG: Add PR #3945.
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