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bors b61ad343e9 Auto merge of #100260 - ehuss:compiletest-target-cfg, r=Mark-Simulacrum 
compiletest: use target cfg instead of hard-coded tables

This changes compiletest to use `rustc --print=cfg` to dynamically determine the properties of a target when matching `ignore` and `only` rules instead of using hard-coded tables or target-triple parsing (which don't always follow the `<arch><sub>-<vendor>-<sys>-<abi>` pattern). The benefit here is that it will more accurately match the target properties, and not require maintaining these extra tables.

This also adds matching the `target_family` in ignore rules. The primary benefit here is so that `ignore-wasm` works as expected (matching all wasm-like targets). There were already several tests that had `ignore-wasm` in them (which previously had no effect), so it is evident that some people expected that to work. This also adds `ignore-unix/only-unix`.

There is some risk that this changes the behavior from before since the tables aren't quite the same as the target properties. However, I did fairly extensive comparisons to see what would be different. https://gist.github.com/ehuss/5bf7ab347605160cefb6f84ba5ea5f6b contains a full list of differences for all targets for all tests. I do not think any of the affected target/test combinations are things that are actually tested in CI. I tested several of the more unusual test images (test-various, dist-various-1, wasm32), and they seem fine.

A summary of most of the reasons behind the differences:

- wasm64-unknown-unknown wasm32-wasi now match "wasm"
- Targets now match "gnu" because they have target_env=gnu
    - aarch64-wrs-vxworks
    - armv7-wrs-vxworks-eabihf
    - i686-wrs-vxworks
    - powerpc-wrs-vxworks
    - powerpc64-wrs-vxworks
    - x86_64-wrs-vxworks
- wasm64-unknown-unknown now matches wasm64
- x86_64-unknown-none-linuxkernel no longer matches "linux", but will match "gnu" and "none"
- Various arm targets now match "aarch64" or "arm":
    - arm64_32-apple-watchos
    - armebv7r-none-eabi
    - armv6-unknown-freebsd
    - armv6-unknown-netbsd-eabihf
    - armv6k-nintendo-3ds
    - armv7-wrs-vxworks-eabihf
    - armv7a-kmc-solid_asp3-eabi
    - armv7a-kmc-solid_asp3-eabihf
    - armv7a-none-eabi
    - armv7a-none-eabihf
    - armv7k-apple-watchos
    - armv7r-none-eabi
    - armv7r-none-eabihf
- Now matches "thumb" and "arm"
    - thumbv4t-none-eabi
    - thumbv6m-none-eabi
    - thumbv7a-pc-windows-msvc
    - thumbv7a-uwp-windows-msvc
    - thumbv7em-none-eabi
    - thumbv7em-none-eabihf
    - thumbv7m-none-eabi
    - thumbv7neon-linux-androideabi
    - thumbv7neon-unknown-linux-gnueabihf
    - thumbv7neon-unknown-linux-musleabihf
    - thumbv8m.base-none-eabi
    - thumbv8m.main-none-eabi
- asmjs-unknown-emscripten now matches "wasm32" because that it is its defined arch
- avr-unknown-gnu-atmega328 now matches "none" (because target_os="none")
- now matches 64bit:
    - bpfeb-unknown-none
    - bpfel-unknown-none
    - sparcv9-sun-solaris
- now matches endian-big:
    - m68k-unknown-linux-gnu
- now matches 16bit:
    - msp430-none-elf
- now matches 32bit:
    - arm64_32-apple-watchos
- now matches riscv32 (and needs-asm-support):
    - riscv32gc-unknown-linux-gnu
    - riscv32gc-unknown-linux-musl
    - riscv32i-unknown-none-elf
    - riscv32im-unknown-none-elf
    - riscv32imac-unknown-none-elf
    - riscv32imac-unknown-xous-elf
    - riscv32imc-esp-espidf
    - riscv32imc-unknown-none-elf
    - riscv64imac-unknown-none-elf
2022-08-10 15:22:26 +00:00
.cargo Add CARGO_WORKSPACE_DIR env var in .cargo/config.toml 2022-07-19 13:02:16 +02:00
.github Update bug_report.md 2022-08-05 09:04:27 +02:00
.vscode Add "Win Attach to Server" debug configuration 2021-01-25 17:46:03 +03:00
assets Automatically change text color in logo based on dark mode 2022-03-06 23:06:53 +11:00
bench_data Add benchmark test for mbe 2021-02-25 05:47:13 +08:00
crates ⬆️ rust-analyzer 2022-08-09 07:23:57 +03:00
docs Fix r-a spelling in some places 2022-08-01 13:47:09 +02:00
editors/code Auto merge of #12934 - Veykril:typing, r=Veykril 2022-08-03 16:23:49 +00:00
lib Returns the old value for la_arena::ArenaMap::insert 2022-08-07 04:53:23 +08:00
xtask Use the release branch in xtask promote 2022-08-03 09:48:44 +03:00
.editorconfig prettier config 2022-05-17 18:12:49 +01:00
.git-blame-ignore-revs add prettier format commit to ignored revisions 2022-05-17 18:15:51 +01:00
.gitattributes Fix .gitattributes for test_data 2022-07-24 14:05:35 +02:00
.gitignore internal: add "Shuffle Crate Graph" command 2021-12-07 16:37:19 +01:00
Cargo.lock Add a proc-macro-srv-cli crate 2022-07-25 15:19:57 +02:00
Cargo.toml style: rename crates to kebab case 2022-05-01 10:48:58 +00:00
LICENSE-APACHE Licenses 2018-01-10 22:47:04 +03:00
LICENSE-MIT Licenses 2018-01-10 22:47:04 +03:00
PRIVACY.md Update privacy note 2021-12-23 14:04:15 +02:00
README.md Fix r-a spelling in some places 2022-08-01 13:47:09 +02:00
rustfmt.toml Remove forcing \n via rustfmt 2019-11-02 22:19:59 +03:00
triagebot.toml Add triagebot.toml 2022-04-21 17:43:12 +02:00

README.md

rust-analyzer logo

rust-analyzer is a modular compiler frontend for the Rust language. It is a part of a larger rls-2.0 effort to create excellent IDE support for Rust.

Quick Start

https://rust-analyzer.github.io/manual.html#installation

Documentation

If you want to contribute to rust-analyzer or are just curious about how things work under the hood, check the ./docs/dev folder.

If you want to use rust-analyzer's language server with your editor of choice, check the manual folder. It also contains some tips & tricks to help you be more productive when using rust-analyzer.

Security and Privacy

See the corresponding sections of the manual.

Communication

For usage and troubleshooting requests, please use "IDEs and Editors" category of the Rust forum:

https://users.rust-lang.org/c/ide/14

For questions about development and implementation, join rust-analyzer working group on Zulip:

https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer

Quick Links

License

rust-analyzer is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE and LICENSE-MIT for details.