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Merge #11623 
11623: fix: Add type variable table to InferenceTableSnapshot r=flodiebold a=tysg

Fixes #11601. 

I observed that removing the `rollback` line in 6fc3d3aa4c fixes the issue.  

Looking at the stacktrace, I believe not restoring `type_variable_table` causes `type_variable_table` and `var_unification_table` to go out of sync, then when `hir_ty::infer::unify::InferenceTable::new_var` tries to extend `type_variable_table` to be the same length as `var_unification_table`, problems will arise.

However, I cannot pinpoint exactly how or where the vector capacity overflow happens, so my understanding might not be correct after all. 

Co-authored-by: Tianyi Song <42670338+tysg@users.noreply.github.com>
2022-03-05 10:32:07 +00:00
.cargo xtask: replace "lint" command by a simply cargo alias 2021-03-14 13:36:45 +01:00
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crates Merge #11623 2022-03-05 10:32:07 +00:00
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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.

Work on rust-analyzer is sponsored by

Ferrous Systems

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.