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I googled for a bit and didn't find anything current about Rust's region system from an implementation perspective. Is there a good place to read more in depth

I googled for a bit and didn't find anything current about Rust's region system from an implementation perspective. Is there a good place to read more in depth about design decisions, but containing less process than the RFCs and PRs?

eddyb 10y ago
The only document I can think of outside of Niko Matsakis' blog (http://smallcultfollowing.com/babysteps/ http://smallcultfollowing.com/babysteps/) would be https://github.com/rust-lang/rust/blob/master/src/librustc/infer/region_inference/README.md https://github.com/rust-lang/rust/blob/master/src/librustc/i...
stjepang 10y ago
There is a chapter in Rustonomicon on subtyping and variance: https://doc.rust-lang.org/nomicon/subtyping.html https://doc.rust-lang.org/nomicon/subtyping.html