be7c6a3b43
`ResultsCursor` currently owns its `Results`. But sometimes the `Results` is needed again afterwards. So there is `ResultsCursor::into_results` for extracting the `Results`, which leads to some awkwardness. This commit adds `ResultsHandle`, a `Cow`-like type that can either borrow or own a a `Results`. `ResultsCursor` now uses it. This is good because some `ResultsCursor`s really want to own their `Results`, while others just want to borrow it. We end with with a few more lines of code, but get some nice cleanups. - `ResultsCursor::into_results` and `Formatter::into_results` are removed. - `write_graphviz_results` now just borrows a `Results`, instead of the awkward "take ownership of a `Results` and then return it unchanged" pattern. This reinstates the cursor flexibility that was lost in #118230 -- which removed the old `ResultsRefCursor` and `ResultsCloneCursor` types -- but in a much simpler way. Hooray! |
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This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
Why Rust?
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Performance: Fast and memory-efficient, suitable for critical services, embedded devices, and easily integrate with other languages.
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Reliability: Our rich type system and ownership model ensure memory and thread safety, reducing bugs at compile-time.
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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.