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许杰友 Jieyou Xu (Joe) 765e8c75b0
Rollup merge of #131864 - lrh2000:upcast_reorder, r=WaffleLapkin 
Never emit `vptr` for empty/auto traits

Emiting `vptr`s for empty/auto traits is unnecessary (#114942) and causes unsoundness in `trait_upcasting` (#131813). This PR should ensure that we never emit vtables for such traits. See the linked issues for more details.

I'm not sure if I can add tests for the vtable layout. So this PR only adds tests for the soundness hole (i.e., the segmentation fault will disappear after this PR).

Fixes #114942
Fixes #131813

Cc #65991 (tracking issue for `trait_upcasting`)

r? `@WaffleLapkin`  (per https://github.com/rust-lang/rust/issues/131813#issuecomment-2419969745)
2024-10-18 14:52:25 +01:00
.github Print how much disk space is left after CI build runs 2024-10-13 21:58:24 +02:00
compiler Rollup merge of #131864 - lrh2000:upcast_reorder, r=WaffleLapkin 2024-10-18 14:52:25 +01:00
library Rollup merge of #126207 - devnexen:stack_overflow_libc_upd, r=joboet 2024-10-18 14:52:25 +01:00
LICENSES Rename LICENSES/GPL-2.0.txt into LICENSES/GPL-2.0-only.txt 2024-09-06 16:01:46 +02:00
src Auto merge of #131887 - jieyouxu:rollup-ftik4ni, r=jieyouxu 2024-10-18 11:11:43 +00:00
tests Rollup merge of #131864 - lrh2000:upcast_reorder, r=WaffleLapkin 2024-10-18 14:52:25 +01:00
.clang-format Add .clang-format 2024-06-26 05:56:00 +08:00
.editorconfig Only use max_line_length = 100 for *.rs 2023-07-10 15:18:36 -07:00
.git-blame-ignore-revs Add rustfmt 2024 reformatting to git blame ignore 2024-09-23 10:02:04 +02:00
.gitattributes Rename config.toml.example to config.example.toml 2023-03-11 14:10:00 -08:00
.gitignore Rollup merge of #129620 - WaffleLapkin:flake, r=Noratrieb 2024-10-17 20:47:29 +02:00
.gitmodules Update to LLVM 19.1.0 2024-09-20 14:41:36 -07:00
.ignore Add .ignore file to make config.toml searchable in vscode 2024-06-24 10:15:16 +02:00
.mailmap Add mailmap entry for kobzol 2024-10-17 19:43:13 +02:00
Cargo.lock Auto merge of #131422 - GnomedDev:smallvec-predicate-obligations, r=compiler-errors 2024-10-16 04:06:14 +00:00
Cargo.toml Switch to using the v2 resolver in most workspaces 2024-08-18 13:59:09 -05:00
CODE_OF_CONDUCT.md Remove the code of conduct; instead link https://www.rust-lang.org/conduct.html 2019-10-05 22:55:19 +02:00
config.example.toml bootstrap: add std_features config 2024-10-06 09:59:10 +05:30
configure Ensure ./configure works when configure.py path contains spaces 2024-02-16 18:57:22 +00:00
CONTRIBUTING.md fix: Update CONTRIBUTING.md recommend -> recommended 2023-11-16 23:57:09 +05:30
COPYRIGHT Update COPYRIGHT file 2022-10-30 10:23:14 -04:00
INSTALL.md add clarity for custom path installation 2024-10-06 07:37:00 -05:00
LICENSE-APACHE Remove appendix from LICENCE-APACHE 2019-12-30 14:25:53 +00:00
LICENSE-MIT LICENSE-MIT: Remove inaccurate (misattributed) copyright notice 2017-07-26 16:51:58 -07:00
README.md Use SVG logos in the README.md. 2024-04-03 19:48:20 +02:00
RELEASES.md Remove Waker::waker from 1.82 relnotes 2024-10-16 11:12:55 -07:00
REUSE.toml Fix licensing information in REUSE.toml 2024-09-06 16:01:47 +02:00
rust-bors.toml Increase timeout for new bors bot 2024-03-13 08:31:07 +01:00
rustfmt.toml Use style_edition over version 2024-09-22 19:11:28 -04:00
triagebot.toml triagebot: tag PRs affecting compiletest with A-compiletest 2024-10-14 19:33:58 +08:00
x Make x capable of resolving symlinks 2023-10-14 17:53:33 +03:00
x.ps1 use & instead of start-process in x.ps1 2023-12-09 09:46:16 -05:00
x.py Fix recent python linting errors 2023-08-02 04:40:28 -04:00

README.md

This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.

Why Rust?

  • Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrate with other languages.

  • Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.

  • Productivity: Comprehensive documentation, a compiler committed to providing great diagnostics, and advanced tooling including package manager and build tool (Cargo), auto-formatter (rustfmt), linter (Clippy) and editor support (rust-analyzer).

Quick Start

Read "Installation" from The Book.

Installing from Source

If you really want to install from source (though this is not recommended), see INSTALL.md.

Getting Help

See https://www.rust-lang.org/community for a list of chat platforms and forums.

Contributing

See CONTRIBUTING.md.

License

Rust is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.

See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.

Trademark

The Rust Foundation owns and protects the Rust and Cargo trademarks and logos (the "Rust Trademarks").

If you want to use these names or brands, please read the media guide.

Third-party logos may be subject to third-party copyrights and trademarks. See Licenses for details.