Use 128 bits for TypeId hash #109953

thomcc · 2023-04-05T01:21:32Z

Preliminary/Draft impl of rust-lang/compiler-team#608

Prior art (probably incomplete list)

rustbot · 2023-04-05T01:21:38Z

(rustbot has picked a reviewer for you, use r? to override)

thomcc · 2023-04-05T01:33:30Z

~~There are a couple test failures that hit locally. Just two, really: https://gist.github.com/thomcc/514a6b46f9636af96cf0c5f9fdd0f37f. Not sure about them.~~ These were caused by tracing-subscriber depending on TypeId's size.

~~Other things I wasn't sure about:~~

Why do I need to handle the intrinsic in rustc_codegen_llvm (I thought that it should be lowered already, since I did so in rustc_codegen_ssa). But if I don't handle there, it complains that I haven't lowered it yet, so I handled it in both places. This seems to have been my imaginination.
If there's some way to avoid adding type_id128 as an intrinsic, and instead just change the return type of type_id. I couldn't see a clean way to make that work in the compiler with bootstrapping, but maybe I didn't try hard enough or just confused myself with it. It turns out I had confused myself.

thomcc · 2023-04-05T01:38:02Z

Oh, it fails because tracing-subscriber relies on TypeId being u64. :|

thomcc · 2023-04-05T01:50:42Z

I've added a hacky impl Hash for TypeId which should avoid upsetting tracing-subscriber. I don't really know if that's the approach we want to use long-term (t-libs question -- this might be more efficient in many hashers, honestly), but this probably will fix those test failures.

compiler/rustc_codegen_llvm/src/intrinsic.rs

compiler/rustc_middle/src/ty/util.rs

compiler/rustc_codegen_llvm/src/intrinsic.rs

library/core/src/any.rs

thomcc · 2023-04-05T05:20:02Z

Going to do a perf run, since it was mentioned as a concern.

@bors try @rust-timer queue

bors · 2023-04-05T05:20:12Z

⌛ Trying commit 50ae15ede9be80c090a51d6a89218a32169b50df with merge 95d90d2f6d4495fee62f69cf14fe3ec6d009965e...

bors · 2023-04-05T07:04:42Z

☀️ Try build successful - checks-actions
Build commit: 95d90d2f6d4495fee62f69cf14fe3ec6d009965e (95d90d2f6d4495fee62f69cf14fe3ec6d009965e)

rust-timer · 2023-04-05T09:10:37Z

Finished benchmarking commit (95d90d2f6d4495fee62f69cf14fe3ec6d009965e): comparison URL.

Overall result: no relevant changes - no action needed

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR may lead to changes in compiler perf.

@bors rollup=never
@rustbot label: -S-waiting-on-perf -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	3.8%	[3.8%, 3.8%]	1
Regressions ❌ (secondary)	3.0%	[3.0%, 3.0%]	1
Improvements ✅ (primary)	-1.8%	[-3.5%, -0.0%]	2
Improvements ✅ (secondary)	-2.2%	[-3.4%, -1.1%]	2
All ❌✅ (primary)	0.1%	[-3.5%, 3.8%]	3

Cycles

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	2.1%	[2.1%, 2.1%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

rustbot · 2023-04-05T09:18:24Z

Some changes occurred to the CTFE / Miri engine

cc @rust-lang/miri

Hey! It looks like you've submitted a new PR for the library teams!

If this PR contains changes to any rust-lang/rust public library APIs then please comment with @rustbot label +T-libs-api -T-libs to tag it appropriately. If this PR contains changes to any unstable APIs please edit the PR description to add a link to the relevant API Change Proposal or create one if you haven't already. If you're unsure where your change falls no worries, just leave it as is and the reviewer will take a look and make a decision to forward on if necessary.

Examples of T-libs-api changes:

Stabilizing library features
Introducing insta-stable changes such as new implementations of existing stable traits on existing stable types
Introducing new or changing existing unstable library APIs (excluding permanently unstable features / features without a tracking issue)
Changing public documentation in ways that create new stability guarantees
Changing observable runtime behavior of library APIs

Some changes occurred to the CTFE / Miri engine

cc @rust-lang/miri

thomcc · 2023-04-05T09:29:23Z

library/core/src/any.rs

+        //   (especially given the previous point about the lower 64 bits being
+        //   high quality on their own).
+        //
+        // That said, this is a bit of a hack. (FIXME(thom): nominate this for


Don't land without me doing this (but it probably would be premature before the MCP completes).

ping: the MCP was completed, do you still want to nominate this for T-libs?

(IMO this impl can be changed after/asynchronously to this PR — as discussed here previously, this implementation is totally fine for the Hash trait)

bjorn3 · 2023-04-05T09:45:44Z

cc @alice-i-cecile maybe this should be benchmarked with Bevy?

eddyb · 2023-04-05T10:16:50Z

cc-ing @Badel2 @CAD97 @m-ou-se @digama0 @RalfJung @nikomatsakis @joshtriplett (based on comments you each had on #95845 regarding hashes - apologies if this PR isn't relevant, but I wanted to at least connect those dots)

davidtwco

Implementation LGTM

Badel2 · 2023-04-05T11:09:57Z

Wow, so excited to see this finally being fixed!

Regarding hashing only the lower u64 in the Hash impl, that it is a common and perfectly valid way to truncate a cryptographically secure hash function, it is even in the standard for SHA-2. And even if the hash function used by TypeId is not cryptographically secure, the worst attack which is creating hash collisions will have the same cost as if we were hashing the full u128 since the output of Hash::finish is a u64 anyway.

The only problem is that it is possible to create a TypeId using transmute, and in that case creating a collision is free because we can modify the output of the first hash function. (transmute TypeId to u128, modify without touching lower u64, transmute back to TypeId). The impact of that problem is that you can make a hashmap O(n^2), but only in your own code, so I will let someone else decide if it is worth to fix it.

After taking a look at the offending code that breaks, here: https://github.com/tokio-rs/tracing/blob/3392be93cb9262a5da54c23e5772e79a8736d50e/tracing-subscriber/src/registry/extensions.rs#L27

I propose to just call write_u64 twice. This will avoid worrying about the hash collisions created using transmute, and it will not break tracing-subscriber, which will only use the input of the second call as the hash.

Also the last time I remember talking about this, the problem was that some crates are using transmute between TypeId and u64, how is that fixed here? Was that fixed in those crates at some point?

Thank you for moving this issue forward!

thomcc · 2023-04-05T15:14:01Z

I propose to just call write_u64 twice. This will avoid worrying about the hash collisions created using transmute, and it will not break tracing-subscriber, which will only use the input of the second call as the hash.

This is what I did initially, after looking at the same code. That said, I find @eddyb's argument that it's fine to just use 64 bits pretty compelling.

the worst attack which is creating hash collisions will have the same cost as if we were hashing the full u128 since the output of Hash::finish is a u64 anyway

We're not really concerned about attacks, so much as accidental collisions.

the problem was that some crates are using transmute between TypeId and u64, how is that fixed here

It's not. Those crates are going to be broken no matter how we fix this issue (even the string pointer approach probably won't work right for them, although I suppose on 64 bit targets they might be less broken), the only way to keep them working is to decide this never changes, which seems unreasonable.

In the past we haven't really considered that reason to avoid a motivated fix; for example, plenty of code used to do type punning between std::net types and libc... although it's possible the breakage in this case could be too much to bear.

It's worth doing a crater run for this at least, if for no other reason than to give such code a heads up.

WaffleLapkin · 2023-06-08T08:57:22Z

Given the T-libs approval modulo comment in #109953 (comment) and the comment being fixed,

@bors r+ rollup

🎉

bors · 2023-06-08T08:57:24Z

📌 Commit b512004 has been approved by WaffleLapkin

It is now in the queue for this repository.

…iaskrgr Rollup of 4 pull requests Successful merges: - rust-lang#109953 (Use 128 bits for TypeId hash) - rust-lang#112333 (Don't hold the active queries lock while calling `make_query`) - rust-lang#112339 (Fix rust-analyzer proc macro server) - rust-lang#112410 (Do `fix_*_builtin_expr` hacks on the writeback results) r? `@ghost` `@rustbot` modify labels: rollup

rust-lang/rust#109953 made std TypeId 128 bits and its new Hash impl prevents the use of TypeIdHasher so I'll be using a pointer cast going forward

Version 1.72.0 (2023-08-24) ========================== Language -------- - [Replace const eval limit by a lint and add an exponential backoff warning](rust-lang/rust#103877) - [expand: Change how `#![cfg(FALSE)]` behaves on crate root](rust-lang/rust#110141) - [Stabilize inline asm for LoongArch64](rust-lang/rust#111235) - [Uplift `clippy::undropped_manually_drops` lint](rust-lang/rust#111530) - [Uplift `clippy::invalid_utf8_in_unchecked` lint](rust-lang/rust#111543) - [Uplift `clippy::cast_ref_to_mut` lint](rust-lang/rust#111567) - [Uplift `clippy::cmp_nan` lint](rust-lang/rust#111818) - [resolve: Remove artificial import ambiguity errors](rust-lang/rust#112086) - [Don't require associated types with Self: Sized bounds in `dyn Trait` objects](rust-lang/rust#112319) Compiler -------- - [Remember names of `cfg`-ed out items to mention them in diagnostics](rust-lang/rust#109005) - [Support for native WASM exceptions](rust-lang/rust#111322) - [Add support for NetBSD/aarch64-be (big-endian arm64).](rust-lang/rust#111326) - [Write to stdout if `-` is given as output file](rust-lang/rust#111626) - [Force all native libraries to be statically linked when linking a static binary](rust-lang/rust#111698) - [Add Tier 3 support for `loongarch64-unknown-none*`](rust-lang/rust#112310) - [Prevent `.eh_frame` from being emitted for `-C panic=abort`](rust-lang/rust#112403) - [Support 128-bit enum variant in debuginfo codegen](rust-lang/rust#112474) - [compiler: update solaris/illumos to enable tsan support.](rust-lang/rust#112039) Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Document memory orderings of `thread::{park, unpark}`](rust-lang/rust#99587) - [io: soften ‘at most one write attempt’ requirement in io::Write::write](rust-lang/rust#107200) - [Specify behavior of HashSet::insert](rust-lang/rust#107619) - [Relax implicit `T: Sized` bounds on `BufReader<T>`, `BufWriter<T>` and `LineWriter<T>`](rust-lang/rust#111074) - [Update runtime guarantee for `select_nth_unstable`](rust-lang/rust#111974) - [Return `Ok` on kill if process has already exited](rust-lang/rust#112594) - [Implement PartialOrd for `Vec`s over different allocators](rust-lang/rust#112632) - [Use 128 bits for TypeId hash](rust-lang/rust#109953) - [Don't drain-on-drop in DrainFilter impls of various collections.](rust-lang/rust#104455) - [Make `{Arc,Rc,Weak}::ptr_eq` ignore pointer metadata](rust-lang/rust#106450) Rustdoc ------- - [Allow whitespace as path separator like double colon](rust-lang/rust#108537) - [Add search result item types after their name](rust-lang/rust#110688) - [Search for slices and arrays by type with `[]`](rust-lang/rust#111958) - [Clean up type unification and "unboxing"](rust-lang/rust#112233) Stabilized APIs --------------- - [`impl<T: Send> Sync for mpsc::Sender<T>`](https://doc.rust-lang.org/nightly/std/sync/mpsc/struct.Sender.html#impl-Sync-for-Sender%3CT%3E) - [`impl TryFrom<&OsStr> for &str`](https://doc.rust-lang.org/nightly/std/primitive.str.html#impl-TryFrom%3C%26'a+OsStr%3E-for-%26'a+str) - [`String::leak`](https://doc.rust-lang.org/nightly/alloc/string/struct.String.html#method.leak) These APIs are now stable in const contexts: - [`CStr::from_bytes_with_nul`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes_with_nul`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_str`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) Cargo ----- - Enable `-Zdoctest-in-workspace` by default. When running each documentation test, the working directory is set to the root directory of the package the test belongs to. [docs](https://doc.rust-lang.org/nightly/cargo/commands/cargo-test.html#working-directory-of-tests) [openwrt#12221](rust-lang/cargo#12221) [openwrt#12288](rust-lang/cargo#12288) - Add support of the "default" keyword to reset previously set `build.jobs` parallelism back to the default. [openwrt#12222](rust-lang/cargo#12222) Compatibility Notes ------------------- - [Alter `Display` for `Ipv6Addr` for IPv4-compatible addresses](rust-lang/rust#112606) - Cargo changed feature name validation check to a hard error. The warning was added in Rust 1.49. These extended characters aren't allowed on crates.io, so this should only impact users of other registries, or people who don't publish to a registry. [openwrt#12291](rust-lang/cargo#12291) Refreshed patches. Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>

Summary: * `TypeId` is `u128` [in Rust 1.72](rust-lang/rust#109953) * `u128` is 16 bytes aligned on Apple Silicon * we require 8 byte alignment for `StarlarkValue` Maybe we should fix heap allocations: insert padding to allow any alignment. But practically we don't need it and should not do it: generated machine code is identical for aligned and 8-byte aligned `u128`: [compiler explorer](https://rust.godbolt.org/z/96KsnjW77) (note it is identical if we load it from memory not pass by value, but this is what we do). So for now just force 8 byte alignment on `TypeId`. Fixes issue facebook/buck2#408 Reviewed By: ndmitchell, shayne-fletcher Differential Revision: D49019964 fbshipit-source-id: 62c8d7db83e9e4bdbe58fe7a62d5daae41996e61

Summary: * `TypeId` is `u128` [in Rust 1.72](rust-lang/rust#109953) * `u128` is 16 bytes aligned on Apple Silicon * we require 8 byte alignment for `StarlarkValue` Maybe we should fix heap allocations: insert padding to allow any alignment. But practically we don't need it and should not do it: generated machine code is identical for aligned and 8-byte aligned `u128`: [compiler explorer](https://rust.godbolt.org/z/96KsnjW77) (note it is identical if we load it from memory not pass by value, but this is what we do). So for now just force 8 byte alignment on `TypeId`. Fixes issue #408 Reviewed By: ndmitchell, shayne-fletcher Differential Revision: D49019964 fbshipit-source-id: 62c8d7db83e9e4bdbe58fe7a62d5daae41996e61

Version 1.72.0 (2023-08-24) ========================== Language -------- - [Replace const eval limit by a lint and add an exponential backoff warning](rust-lang/rust#103877) - [expand: Change how `#![cfg(FALSE)]` behaves on crate root](rust-lang/rust#110141) - [Stabilize inline asm for LoongArch64](rust-lang/rust#111235) - [Uplift `clippy::undropped_manually_drops` lint](rust-lang/rust#111530) - [Uplift `clippy::invalid_utf8_in_unchecked` lint](rust-lang/rust#111543) - [Uplift `clippy::cast_ref_to_mut` lint](rust-lang/rust#111567) - [Uplift `clippy::cmp_nan` lint](rust-lang/rust#111818) - [resolve: Remove artificial import ambiguity errors](rust-lang/rust#112086) - [Don't require associated types with Self: Sized bounds in `dyn Trait` objects](rust-lang/rust#112319) Compiler -------- - [Remember names of `cfg`-ed out items to mention them in diagnostics](rust-lang/rust#109005) - [Support for native WASM exceptions](rust-lang/rust#111322) - [Add support for NetBSD/aarch64-be (big-endian arm64).](rust-lang/rust#111326) - [Write to stdout if `-` is given as output file](rust-lang/rust#111626) - [Force all native libraries to be statically linked when linking a static binary](rust-lang/rust#111698) - [Add Tier 3 support for `loongarch64-unknown-none*`](rust-lang/rust#112310) - [Prevent `.eh_frame` from being emitted for `-C panic=abort`](rust-lang/rust#112403) - [Support 128-bit enum variant in debuginfo codegen](rust-lang/rust#112474) - [compiler: update solaris/illumos to enable tsan support.](rust-lang/rust#112039) Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Document memory orderings of `thread::{park, unpark}`](rust-lang/rust#99587) - [io: soften ‘at most one write attempt’ requirement in io::Write::write](rust-lang/rust#107200) - [Specify behavior of HashSet::insert](rust-lang/rust#107619) - [Relax implicit `T: Sized` bounds on `BufReader<T>`, `BufWriter<T>` and `LineWriter<T>`](rust-lang/rust#111074) - [Update runtime guarantee for `select_nth_unstable`](rust-lang/rust#111974) - [Return `Ok` on kill if process has already exited](rust-lang/rust#112594) - [Implement PartialOrd for `Vec`s over different allocators](rust-lang/rust#112632) - [Use 128 bits for TypeId hash](rust-lang/rust#109953) - [Don't drain-on-drop in DrainFilter impls of various collections.](rust-lang/rust#104455) - [Make `{Arc,Rc,Weak}::ptr_eq` ignore pointer metadata](rust-lang/rust#106450) Rustdoc ------- - [Allow whitespace as path separator like double colon](rust-lang/rust#108537) - [Add search result item types after their name](rust-lang/rust#110688) - [Search for slices and arrays by type with `[]`](rust-lang/rust#111958) - [Clean up type unification and "unboxing"](rust-lang/rust#112233) Stabilized APIs --------------- - [`impl<T: Send> Sync for mpsc::Sender<T>`](https://doc.rust-lang.org/nightly/std/sync/mpsc/struct.Sender.html#impl-Sync-for-Sender%3CT%3E) - [`impl TryFrom<&OsStr> for &str`](https://doc.rust-lang.org/nightly/std/primitive.str.html#impl-TryFrom%3C%26'a+OsStr%3E-for-%26'a+str) - [`String::leak`](https://doc.rust-lang.org/nightly/alloc/string/struct.String.html#method.leak) These APIs are now stable in const contexts: - [`CStr::from_bytes_with_nul`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes_with_nul`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_str`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) Cargo ----- - Enable `-Zdoctest-in-workspace` by default. When running each documentation test, the working directory is set to the root directory of the package the test belongs to. [docs](https://doc.rust-lang.org/nightly/cargo/commands/cargo-test.html#working-directory-of-tests) [openwrt#12221](rust-lang/cargo#12221) [openwrt#12288](rust-lang/cargo#12288) - Add support of the "default" keyword to reset previously set `build.jobs` parallelism back to the default. [openwrt#12222](rust-lang/cargo#12222) Compatibility Notes ------------------- - [Alter `Display` for `Ipv6Addr` for IPv4-compatible addresses](rust-lang/rust#112606) - Cargo changed feature name validation check to a hard error. The warning was added in Rust 1.49. These extended characters aren't allowed on crates.io, so this should only impact users of other registries, or people who don't publish to a registry. [openwrt#12291](rust-lang/cargo#12291) Refreshed patches. Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org> (cherry picked from commit 846ee0b) Signed-off-by: Jeffery To <jeffery.to@gmail.com>

Version 1.72.0 (2023-08-24) ========================== Language -------- - [Replace const eval limit by a lint and add an exponential backoff warning](rust-lang/rust#103877) - [expand: Change how `#![cfg(FALSE)]` behaves on crate root](rust-lang/rust#110141) - [Stabilize inline asm for LoongArch64](rust-lang/rust#111235) - [Uplift `clippy::undropped_manually_drops` lint](rust-lang/rust#111530) - [Uplift `clippy::invalid_utf8_in_unchecked` lint](rust-lang/rust#111543) - [Uplift `clippy::cast_ref_to_mut` lint](rust-lang/rust#111567) - [Uplift `clippy::cmp_nan` lint](rust-lang/rust#111818) - [resolve: Remove artificial import ambiguity errors](rust-lang/rust#112086) - [Don't require associated types with Self: Sized bounds in `dyn Trait` objects](rust-lang/rust#112319) Compiler -------- - [Remember names of `cfg`-ed out items to mention them in diagnostics](rust-lang/rust#109005) - [Support for native WASM exceptions](rust-lang/rust#111322) - [Add support for NetBSD/aarch64-be (big-endian arm64).](rust-lang/rust#111326) - [Write to stdout if `-` is given as output file](rust-lang/rust#111626) - [Force all native libraries to be statically linked when linking a static binary](rust-lang/rust#111698) - [Add Tier 3 support for `loongarch64-unknown-none*`](rust-lang/rust#112310) - [Prevent `.eh_frame` from being emitted for `-C panic=abort`](rust-lang/rust#112403) - [Support 128-bit enum variant in debuginfo codegen](rust-lang/rust#112474) - [compiler: update solaris/illumos to enable tsan support.](rust-lang/rust#112039) Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Document memory orderings of `thread::{park, unpark}`](rust-lang/rust#99587) - [io: soften ‘at most one write attempt’ requirement in io::Write::write](rust-lang/rust#107200) - [Specify behavior of HashSet::insert](rust-lang/rust#107619) - [Relax implicit `T: Sized` bounds on `BufReader<T>`, `BufWriter<T>` and `LineWriter<T>`](rust-lang/rust#111074) - [Update runtime guarantee for `select_nth_unstable`](rust-lang/rust#111974) - [Return `Ok` on kill if process has already exited](rust-lang/rust#112594) - [Implement PartialOrd for `Vec`s over different allocators](rust-lang/rust#112632) - [Use 128 bits for TypeId hash](rust-lang/rust#109953) - [Don't drain-on-drop in DrainFilter impls of various collections.](rust-lang/rust#104455) - [Make `{Arc,Rc,Weak}::ptr_eq` ignore pointer metadata](rust-lang/rust#106450) Rustdoc ------- - [Allow whitespace as path separator like double colon](rust-lang/rust#108537) - [Add search result item types after their name](rust-lang/rust#110688) - [Search for slices and arrays by type with `[]`](rust-lang/rust#111958) - [Clean up type unification and "unboxing"](rust-lang/rust#112233) Stabilized APIs --------------- - [`impl<T: Send> Sync for mpsc::Sender<T>`](https://doc.rust-lang.org/nightly/std/sync/mpsc/struct.Sender.html#impl-Sync-for-Sender%3CT%3E) - [`impl TryFrom<&OsStr> for &str`](https://doc.rust-lang.org/nightly/std/primitive.str.html#impl-TryFrom%3C%26'a+OsStr%3E-for-%26'a+str) - [`String::leak`](https://doc.rust-lang.org/nightly/alloc/string/struct.String.html#method.leak) These APIs are now stable in const contexts: - [`CStr::from_bytes_with_nul`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes_with_nul`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_str`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) Cargo ----- - Enable `-Zdoctest-in-workspace` by default. When running each documentation test, the working directory is set to the root directory of the package the test belongs to. [docs](https://doc.rust-lang.org/nightly/cargo/commands/cargo-test.html#working-directory-of-tests) [#12221](rust-lang/cargo#12221) [#12288](rust-lang/cargo#12288) - Add support of the "default" keyword to reset previously set `build.jobs` parallelism back to the default. [#12222](rust-lang/cargo#12222) Compatibility Notes ------------------- - [Alter `Display` for `Ipv6Addr` for IPv4-compatible addresses](rust-lang/rust#112606) - Cargo changed feature name validation check to a hard error. The warning was added in Rust 1.49. These extended characters aren't allowed on crates.io, so this should only impact users of other registries, or people who don't publish to a registry. [#12291](rust-lang/cargo#12291) Refreshed patches. Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org> (cherry picked from commit 846ee0b) Signed-off-by: Jeffery To <jeffery.to@gmail.com>

Pkgsrc changes: * Adjust patches and cargo checksums to new versions. Upstream changes: Version 1.72.0 (2023-08-24) ========================== Language -------- - [Replace const eval limit by a lint and add an exponential backoff warning] (rust-lang/rust#103877) - [expand: Change how `#![cfg(FALSE)]` behaves on crate root] (rust-lang/rust#110141) - [Stabilize inline asm for LoongArch64] (rust-lang/rust#111235) - [Uplift `clippy::undropped_manually_drops` lint] (rust-lang/rust#111530) - [Uplift `clippy::invalid_utf8_in_unchecked` lint] (rust-lang/rust#111543) - [Uplift `clippy::cast_ref_to_mut` lint] (rust-lang/rust#111567) - [Uplift `clippy::cmp_nan` lint] (rust-lang/rust#111818) - [resolve: Remove artificial import ambiguity errors] (rust-lang/rust#112086) - [Don't require associated types with Self: Sized bounds in `dyn Trait` objects] (rust-lang/rust#112319) Compiler -------- - [Remember names of `cfg`-ed out items to mention them in diagnostics] (rust-lang/rust#109005) - [Support for native WASM exceptions] (rust-lang/rust#111322) - [Add support for NetBSD/aarch64-be (big-endian arm64).] (rust-lang/rust#111326) - [Write to stdout if `-` is given as output file] (rust-lang/rust#111626) - [Force all native libraries to be statically linked when linking a static binary] (rust-lang/rust#111698) - [Add Tier 3 support for `loongarch64-unknown-none*`] (rust-lang/rust#112310) - [Prevent `.eh_frame` from being emitted for `-C panic=abort`] (rust-lang/rust#112403) - [Support 128-bit enum variant in debuginfo codegen] (rust-lang/rust#112474) - [compiler: update solaris/illumos to enable tsan support.] (rust-lang/rust#112039) Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Document memory orderings of `thread::{park, unpark}`] (rust-lang/rust#99587) - [io: soften â<80><98>at most one write attemptâ<80><99> requirement in io::Write::write] (rust-lang/rust#107200) - [Specify behavior of HashSet::insert] (rust-lang/rust#107619) - [Relax implicit `T: Sized` bounds on `BufReader<T>`, `BufWriter<T>` and `LineWriter<T>`] (rust-lang/rust#111074) - [Update runtime guarantee for `select_nth_unstable`] (rust-lang/rust#111974) - [Return `Ok` on kill if process has already exited] (rust-lang/rust#112594) - [Implement PartialOrd for `Vec`s over different allocators] (rust-lang/rust#112632) - [Use 128 bits for TypeId hash] (rust-lang/rust#109953) - [Don't drain-on-drop in DrainFilter impls of various collections.] (rust-lang/rust#104455) - [Make `{Arc,Rc,Weak}::ptr_eq` ignore pointer metadata] (rust-lang/rust#106450) Rustdoc ------- - [Allow whitespace as path separator like double colon] (rust-lang/rust#108537) - [Add search result item types after their name] (rust-lang/rust#110688) - [Search for slices and arrays by type with `[]`] (rust-lang/rust#111958) - [Clean up type unification and "unboxing"] (rust-lang/rust#112233) Stabilized APIs --------------- - [`impl<T: Send> Sync for mpsc::Sender<T>`] (https://doc.rust-lang.org/nightly/std/sync/mpsc/struct.Sender.html#impl-Sync-for-Sender%3CT%3E) - [`impl TryFrom<&OsStr> for &str`] (https://doc.rust-lang.org/nightly/std/primitive.str.html#impl-TryFrom%3C%26'a+OsStr%3E-for-%26'a+str) - [`String::leak`] (https://doc.rust-lang.org/nightly/alloc/string/struct.String.html#method.leak) These APIs are now stable in const contexts: - [`CStr::from_bytes_with_nul`] (https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes`] (https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes_with_nul`] (https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_str`] (https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) Cargo ----- - Enable `-Zdoctest-in-workspace` by default. When running each documentation test, the working directory is set to the root directory of the package the test belongs to. [docs](https://doc.rust-lang.org/nightly/cargo/commands/cargo-test.html#working-directory-of-tests) [#12221](rust-lang/cargo#12221) [#12288](rust-lang/cargo#12288) - Add support of the "default" keyword to reset previously set `build.jobs` parallelism back to the default. [#12222](rust-lang/cargo#12222) Compatibility Notes ------------------- - [Alter `Display` for `Ipv6Addr` for IPv4-compatible addresses] (rust-lang/rust#112606) - Cargo changed feature name validation check to a hard error. The warning was added in Rust 1.49. These extended characters aren't allowed on crates.io, so this should only impact users of other registries, or people who don't publish to a registry. [#12291](rust-lang/cargo#12291)

Version 1.72.0 (2023-08-24) ========================== Language -------- - [Replace const eval limit by a lint and add an exponential backoff warning](rust-lang/rust#103877) - [expand: Change how `#![cfg(FALSE)]` behaves on crate root](rust-lang/rust#110141) - [Stabilize inline asm for LoongArch64](rust-lang/rust#111235) - [Uplift `clippy::undropped_manually_drops` lint](rust-lang/rust#111530) - [Uplift `clippy::invalid_utf8_in_unchecked` lint](rust-lang/rust#111543) - [Uplift `clippy::cast_ref_to_mut` lint](rust-lang/rust#111567) - [Uplift `clippy::cmp_nan` lint](rust-lang/rust#111818) - [resolve: Remove artificial import ambiguity errors](rust-lang/rust#112086) - [Don't require associated types with Self: Sized bounds in `dyn Trait` objects](rust-lang/rust#112319) Compiler -------- - [Remember names of `cfg`-ed out items to mention them in diagnostics](rust-lang/rust#109005) - [Support for native WASM exceptions](rust-lang/rust#111322) - [Add support for NetBSD/aarch64-be (big-endian arm64).](rust-lang/rust#111326) - [Write to stdout if `-` is given as output file](rust-lang/rust#111626) - [Force all native libraries to be statically linked when linking a static binary](rust-lang/rust#111698) - [Add Tier 3 support for `loongarch64-unknown-none*`](rust-lang/rust#112310) - [Prevent `.eh_frame` from being emitted for `-C panic=abort`](rust-lang/rust#112403) - [Support 128-bit enum variant in debuginfo codegen](rust-lang/rust#112474) - [compiler: update solaris/illumos to enable tsan support.](rust-lang/rust#112039) Refer to Rust's [platform support page][platform-support-doc] for more information on Rust's tiered platform support. Libraries --------- - [Document memory orderings of `thread::{park, unpark}`](rust-lang/rust#99587) - [io: soften ‘at most one write attempt’ requirement in io::Write::write](rust-lang/rust#107200) - [Specify behavior of HashSet::insert](rust-lang/rust#107619) - [Relax implicit `T: Sized` bounds on `BufReader<T>`, `BufWriter<T>` and `LineWriter<T>`](rust-lang/rust#111074) - [Update runtime guarantee for `select_nth_unstable`](rust-lang/rust#111974) - [Return `Ok` on kill if process has already exited](rust-lang/rust#112594) - [Implement PartialOrd for `Vec`s over different allocators](rust-lang/rust#112632) - [Use 128 bits for TypeId hash](rust-lang/rust#109953) - [Don't drain-on-drop in DrainFilter impls of various collections.](rust-lang/rust#104455) - [Make `{Arc,Rc,Weak}::ptr_eq` ignore pointer metadata](rust-lang/rust#106450) Rustdoc ------- - [Allow whitespace as path separator like double colon](rust-lang/rust#108537) - [Add search result item types after their name](rust-lang/rust#110688) - [Search for slices and arrays by type with `[]`](rust-lang/rust#111958) - [Clean up type unification and "unboxing"](rust-lang/rust#112233) Stabilized APIs --------------- - [`impl<T: Send> Sync for mpsc::Sender<T>`](https://doc.rust-lang.org/nightly/std/sync/mpsc/struct.Sender.html#impl-Sync-for-Sender%3CT%3E) - [`impl TryFrom<&OsStr> for &str`](https://doc.rust-lang.org/nightly/std/primitive.str.html#impl-TryFrom%3C%26'a+OsStr%3E-for-%26'a+str) - [`String::leak`](https://doc.rust-lang.org/nightly/alloc/string/struct.String.html#method.leak) These APIs are now stable in const contexts: - [`CStr::from_bytes_with_nul`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_bytes_with_nul`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) - [`CStr::to_str`](https://doc.rust-lang.org/nightly/std/ffi/struct.CStr.html#method.from_bytes_with_nul) Cargo ----- - Enable `-Zdoctest-in-workspace` by default. When running each documentation test, the working directory is set to the root directory of the package the test belongs to. [docs](https://doc.rust-lang.org/nightly/cargo/commands/cargo-test.html#working-directory-of-tests) [openwrt#12221](rust-lang/cargo#12221) [openwrt#12288](rust-lang/cargo#12288) - Add support of the "default" keyword to reset previously set `build.jobs` parallelism back to the default. [openwrt#12222](rust-lang/cargo#12222) Compatibility Notes ------------------- - [Alter `Display` for `Ipv6Addr` for IPv4-compatible addresses](rust-lang/rust#112606) - Cargo changed feature name validation check to a hard error. The warning was added in Rust 1.49. These extended characters aren't allowed on crates.io, so this should only impact users of other registries, or people who don't publish to a registry. [openwrt#12291](rust-lang/cargo#12291) Refreshed patches. Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>

rustbot assigned davidtwco Apr 5, 2023

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Apr 5, 2023

thomcc mentioned this pull request Apr 5, 2023

Increase TypeId's hash from 64 bits to 128 bits. rust-lang/compiler-team#608

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scottmcm reviewed Apr 5, 2023

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thomcc marked this pull request as ready for review April 5, 2023 09:18

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bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jun 8, 2023

matthiaskrgr mentioned this pull request Jun 8, 2023

Rollup of 4 pull requests #112420

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bors merged commit 8747c0e into rust-lang:master Jun 8, 2023

rustbot added this to the 1.72.0 milestone Jun 8, 2023

udoprog mentioned this pull request Jun 9, 2023

Stop relying on layout of TypeId rune-rs/rune#550

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andersk mentioned this pull request Jun 21, 2023

Release build fails in assert_eq_size! with Rust nightly ≥ 2023-06-09 astral-sh/ruff#5263

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leudz added a commit to leudz/shipyard that referenced this pull request Jun 21, 2023

Change TypeId size to 128 bits

09f820f

rust-lang/rust#109953 made std TypeId 128 bits and its new Hash impl prevents the use of TypeIdHasher so I'll be using a pointer cast going forward

celinval mentioned this pull request Jun 21, 2023

Upgrade rust toolchain to nightly-2023-06-20 model-checking/kani#2551

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bjorn3 mentioned this pull request Aug 17, 2023

A unique string key for TypeId rust-lang/rfcs#694

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oscartbeaumont mentioned this pull request Aug 21, 2023

Widen Specta TypeID to u128? specta-rs/specta#115

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dtolnay mentioned this pull request Aug 26, 2023

mismatched types: TypeId size changes #114426

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SimonSapin mentioned this pull request Aug 26, 2023

rusty_v8 fails to build with Rust 1.72.0 (128-bit TypeId) apollographql/router#3684

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direc85 mentioned this pull request Aug 27, 2023

Compilation fails with Rust 1.72 woboq/qmetaobject-rs#299

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cormacrelf mentioned this pull request Sep 6, 2023

Starlark alloc alignment assertions fail following rustc 1.72 TypeId changes facebook/buck2#408

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SichangHe mentioned this pull request Jul 22, 2024

Collisions in type_id #10389

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engusmaze mentioned this pull request Sep 23, 2024

Add new builtin: @typeId ziglang/zig#19858

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Use 128 bits for TypeId hash #109953

Use 128 bits for TypeId hash #109953

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Use 128 bits for TypeId hash #109953

Use 128 bits for TypeId hash #109953

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