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bors 150082b0e3 Auto merge of #14878 - lowr:feat/metavar-expr-count, r=Veykril 
Implement `${count()}` metavariable expression

This PR implements `${count()}` metavariable expression for MBE as described in [RFC 3086][rfc]. See [this section][sec-count] of the RFC for its semantics.

Additionally, this PR changes the type of depth parameter of `${index()}` from u32 to usize so as to match how [rustc parses it][index-usize].

Part of #11952
Fixes #14871

[rfc]: https://github.com/rust-lang/rfcs/pull/3086
[sec-count]: https://github.com/rust-lang/rfcs/blob/master/text/3086-macro-metavar-expr.md#count
[index-usize]:ddad0576ca/compiler/rustc_expand/src/mbe/metavar_expr.rs (L22)
2023-05-28 11:45:42 +00:00
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editors/code fix: add a toggle to disable the dependency explorer. 2023-05-26 11:50:07 -04:00
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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.