Allow dropping dyn principal by WaffleLapkin · Pull Request #131857 · rust-lang/rust (original) (raw)

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service andprivacy statement. We’ll occasionally send you account related emails.

Already on GitHub?Sign in to your account

Conversation7 Commits2 Checks0 Files changed

Conversation

This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.Learn more about bidirectional Unicode characters

[ Show hidden characters]({{ revealButtonHref }})

Some changes occurred in compiler/rustc_codegen_cranelift

cc @bjorn3

The Miri subtree was changed

cc @rust-lang/miri

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

yay thanks for testing this one specifically :3

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

This was actually @Jules-Bertholet :D
I only added a dyn* test as asked by lcnr.

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

ty jules :3

r=me after ci passes, unless you want a review from lcnr specifically

📌 Commit c4bce0b has been approved by compiler-errors

It is now in the queue for this repository.

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

Oct 18, 2024

bors added a commit to rust-lang-ci/rust that referenced this pull request

Oct 18, 2024

rust-timer added a commit to rust-lang-ci/rust that referenced this pull request

Oct 18, 2024

Rollup merge of rust-lang#131857 - WaffleLapkin:dyn-drop-principal-3, r=compiler-errors

Allow dropping dyn principal

Revival of rust-lang#126660, which was a revival of rust-lang#114679. Fixes rust-lang#126313.

Allows dropping principal when coercing trait objects, e.g. dyn Debug + Send -> dyn Send.

cc @compiler-errors @Jules-Bertholet r? @lcnr

lcnr added the relnotes

Marks issues that should be documented in the release notes of the next release.

label

Oct 18, 2024

tmeijn pushed a commit to tmeijn/dotfiles that referenced this pull request

Jan 22, 2025

This MR contains the following updates:

MR created with the help of el-capitano/tools/renovate-bot.

Proposed changes to behavior should be submitted there as MRs.

Release Notes

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.

• If you want to rebase/retry this MR, check this box

This MR has been generated by Renovate Bot.

wip-sync pushed a commit to NetBSD/pkgsrc-wip that referenced this pull request

Feb 2, 2025

Pkgsrc changes:

• Adapt patches, one of the patched files were restructured upstream.
• Checksum changes.

Upstream changes:

Version 1.84.1 (2025-01-30)

• [Fix ICE 132920 in duplicate-crate diagnostics.] (rust-lang/rust#133304)
• [Fix errors for overlapping impls in incremental rebuilds.] (rust-lang/rust#133828)
• [Fix slow compilation related to the next-generation trait solver.] (rust-lang/rust#135618)
• [Fix debuginfo when LLVM's location discriminator value limit is exceeded.] (rust-lang/rust#135643)
• Fixes for building Rust from source:
  • [Only try to distribute llvm-objcopy if llvm tools are enabled.] (rust-lang/rust#134240)
  • [Add Profile Override for Non-Git Sources.] (rust-lang/rust#135433)
  • [Resolve symlinks of LLVM tool binaries before copying them.] (rust-lang/rust#135585)
  • [Make it possible to use ci-rustc on tarball sources.] (rust-lang/rust#135722)

Version 1.84.0 (2025-01-09)

Language

• [Allow #[deny] inside #[forbid] as a no-op] (rust-lang/rust#121560)
• [Show a warning when -Ctarget-feature is used to toggle features that can lead to unsoundness due to ABI mismatches] (rust-lang/rust#129884)
• [Use the next-generation trait solver in coherence] (rust-lang/rust#130654)
• [Allow coercions to drop the principal of trait objects] (rust-lang/rust#131857)
• [Support / as the path separator for include!() in all cases on Windows] (rust-lang/rust#125205)
• [Taking a raw ref (raw (const|mut)) of a deref of a pointer (*ptr) is now safe] (rust-lang/rust#129248)
• [Stabilize s390x inline assembly] (rust-lang/rust#131258)
• [Stabilize Arm64EC inline assembly] (rust-lang/rust#131781)
• [Lint against creating pointers to immediately dropped temporaries] (rust-lang/rust#128985)
• [Execute drop glue when unwinding in an extern "C" function] (rust-lang/rust#129582)

Compiler

• [Add --print host-tuple flag to print the host target tuple and affirm the "target tuple" terminology over "target triple"] (rust-lang/rust#125579)
• [Declaring functions with a calling convention not supported on the current target now triggers a hard error] (rust-lang/rust#129935)
• [Set up indirect access to external data for loongarch64-unknown-linux-{musl,ohos}] (rust-lang/rust#131583)
• [Enable XRay instrumentation for LoongArch Linux targets] (rust-lang/rust#131818)
• [Extend the unexpected_cfgs lint to also warn in external macros] (rust-lang/rust#132577)
• [Stabilize WebAssembly multivalue, reference-types, and tail-call target features] (rust-lang/rust#131080)
• [Added Tier 2 support for the wasm32v1-none target] (rust-lang/rust#131487)

Libraries

• [Implement From<&mut {slice}> for Box/Rc/Arc<{slice}>] (rust-lang/rust#129329)
• [Move <float>::copysign, <float>::abs, <float>::signum to core] (rust-lang/rust#131304)
• [Add LowerExp and UpperExp implementations to NonZero] (rust-lang/rust#131377)
• [Implement FromStr for CString and TryFrom<CString> for String] (rust-lang/rust#130608)
• [std::os::darwin has been made public] (rust-lang/rust#130635)

Stabilized APIs

• [Ipv6Addr::is_unique_local] (https://doc.rust-lang.org/stable/core/net/struct.Ipv6Addr.html#method.is_unique_local)
• [Ipv6Addr::is_unicast_link_local] (https://doc.rust-lang.org/stable/core/net/struct.Ipv6Addr.html#method.is_unicast_link_local)
• [core::ptr::with_exposed_provenance] (https://doc.rust-lang.org/stable/core/ptr/fn.with_exposed_provenance.html)
• [core::ptr::with_exposed_provenance_mut] (https://doc.rust-lang.org/stable/core/ptr/fn.with_exposed_provenance_mut.html)
• [<ptr>::addr] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.addr)
• [<ptr>::expose_provenance] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.expose_provenance)
• [<ptr>::with_addr] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.with_addr)
• [<ptr>::map_addr] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.map_addr)
• [<int>::isqrt] (https://doc.rust-lang.org/stable/core/primitive.i32.html#method.isqrt)
• [<int>::checked_isqrt] (https://doc.rust-lang.org/stable/core/primitive.i32.html#method.checked_isqrt)
• [<uint>::isqrt] (https://doc.rust-lang.org/stable/core/primitive.u32.html#method.isqrt)
• [NonZero::isqrt] (https://doc.rust-lang.org/stable/core/num/struct.NonZero.html#impl-NonZero%3Cu128%3E/method.isqrt)
• [core::ptr::without_provenance] (https://doc.rust-lang.org/stable/core/ptr/fn.without_provenance.html)
• [core::ptr::without_provenance_mut] (https://doc.rust-lang.org/stable/core/ptr/fn.without_provenance_mut.html)
• [core::ptr::dangling] (https://doc.rust-lang.org/stable/core/ptr/fn.dangling.html)
• [core::ptr::dangling_mut] (https://doc.rust-lang.org/stable/core/ptr/fn.dangling_mut.html)

These APIs are now stable in const contexts

• [AtomicBool::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicBool.html#method.from_ptr)
• [AtomicPtr::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicPtr.html#method.from_ptr)
• [AtomicU8::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicU8.html#method.from_ptr)
• [AtomicU16::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicU16.html#method.from_ptr)
• [AtomicU32::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicU32.html#method.from_ptr)
• [AtomicU64::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicU64.html#method.from_ptr)
• [AtomicUsize::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicUsize.html#method.from_ptr)
• [AtomicI8::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicI8.html#method.from_ptr)
• [AtomicI16::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicI16.html#method.from_ptr)
• [AtomicI32::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicI32.html#method.from_ptr)
• [AtomicI64::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicI64.html#method.from_ptr)
• [AtomicIsize::from_ptr] (https://doc.rust-lang.org/stable/core/sync/atomic/struct.AtomicIsize.html#method.from_ptr)
• [<ptr>::is_null] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.is_null-1)
• [<ptr>::as_ref] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.as_ref-1)
• [<ptr>::as_mut] (https://doc.rust-lang.org/stable/core/primitive.pointer.html#method.as_mut)
• [Pin::new] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.new)
• [Pin::new_unchecked] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.new_unchecked)
• [Pin::get_ref] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.get_ref)
• [Pin::into_ref] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.into_ref)
• [Pin::get_mut] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.get_mut)
• [Pin::get_unchecked_mut] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.get_unchecked_mut)
• [Pin::static_ref] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.static_ref)
• [Pin::static_mut] (https://doc.rust-lang.org/stable/core/pin/struct.Pin.html#method.static_mut)

Cargo

• [Stabilize MSRV-aware resolver config] (rust-lang/cargo#14639)
• [Stabilize resolver v3] (rust-lang/cargo#14754)

Rustdoc

• [rustdoc-search: improve type-driven search] (rust-lang/rust#127589)

Compatibility Notes

• [Enable by default the LSX target feature for LoongArch Linux targets] (rust-lang/rust#132140)
• The unstable -Zprofile flag ("gcov-style" coverage instrumentation) has been removed. This does not affect the stable flags for coverage instrumentation (-Cinstrument-coverage) and profile-guided optimization (-Cprofile-generate, -Cprofile-use), which are unrelated and remain available.
• Support for the target named wasm32-wasi has been removed as the target is now named wasm32-wasip1. This completes the [transition] (rust-lang/compiler-team#607) plan for this target following [the introduction of wasm32-wasip1] (rust-lang/rust#120468) in Rust 1.78. Compiler warnings on [use of wasm32-wasi] (rust-lang/rust#126662) introduced in Rust 1.81 are now gone as well as the target is removed.
• [The syntax &pin (mut|const) T is now parsed as a type which in theory could affect macro expansion results in some edge cases] (rust-lang/rust#130635 (comment))
• [Legacy syntax for calling std::arch functions is no longer permitted to declare items or bodies (such as closures, inline consts, or async blocks).] (rust-lang/rust#130443 (comment))
• The wasm32-unknown-emscripten target's binary release of the standard library is now [built with the latest emsdk 3.1.68] (rust-lang/rust#131533), which fixes an ABI-incompatibility with Emscripten >= 3.1.42. If you are locally using a version of emsdk with an incompatible ABI (e.g. before 3.1.42 or a future one), you should build your code with -Zbuild-std to ensure that std uses the correct ABI.
• [Declaring functions with a calling convention not supported on the current target now triggers a hard error] (rust-lang/rust#129935)
• [The next-generation trait solver is now enabled for coherence, fixing multiple soundness issues] (rust-lang/rust#130654)

lqd mentioned this pull request

Aug 23, 2025

Labels

relnotes

Marks issues that should be documented in the release notes of the next release.

S-waiting-on-bors

Status: Waiting on bors to run and complete tests. Bors will change the label on completion.

T-compiler

Relevant to the compiler team, which will review and decide on the PR/issue.

WG-trait-system-refactor

The Rustc Trait System Refactor Initiative (-Znext-solver)