0867025cc8
deref patterns: bare-bones feature gate and typechecking I am restarting the deref patterns experimentation. This introduces a feature gate under the lang-team [experimental feature](https://github.com/rust-lang/lang-team/blob/master/src/how_to/experiment.md) process, with [````@cramertj```` as lang-team liaison](https://github.com/rust-lang/lang-team/issues/88) (it's been a while though, you still ok with this ````@cramertj?).```` Tracking issue: https://github.com/rust-lang/rust/issues/87121. This is the barest-bones implementation I could think of: - explicit syntax, reusing `box <pat>` because that saves me a ton of work; - use `Deref` as a marker trait (instead of a yet-to-design `DerefPure`); - no support for mutable patterns with `DerefMut` for now; - MIR lowering will come in the next PR. It's the trickiest part. My goal is to let us figure out the MIR lowering part, which might take some work. And hopefully get something working for std types soon. This is in large part salvaged from ````@fee1-dead's```` https://github.com/rust-lang/rust/pull/119467. r? ````@compiler-errors```` |
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The Rust Programming Language
This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
Note: this README is for users rather than contributors. If you wish to contribute to the compiler, you should read CONTRIBUTING.md instead.
Table of Contents
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.
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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.