aaa684fd1d
typeck: catch `continue`s pointing to blocks This taints the typeck results with errors if a `continue` is found not pointing to a loop. A few things were going wrong here. First, since this wasn't caught in typeck, we'd end up building the THIR and then running liveness lints on ill-formed HIR. Since liveness assumes all `continue`s point to loops, it wasn't setting a live node for the `continue`'s destination. There was a fallback for if it couldn't retrieve that live node, but it was faulty; it would create a new live node to represent an erroneous state after the analysis's RWU table had already been built. This would ICE if the new live node was used in operations, such as merging results from the arms of a match. I've removed this error-recovery since it was buggy, and we should really catch bad labels before liveness. I've also replaced an outdated comment about when liveness lints are run. At this point, I think the call to `check_liveness` could be moved elsewhere, but if it can be run when the typeck results are tainted by errors, it'll need some slight refactoring so it can bail out in that case. In lieu of that, I've added an assert. Fixes #113379 Fixes #121623 |
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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 integrated 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.
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If you really want to install from source (though this is not recommended), see INSTALL.md.
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Contributing
See CONTRIBUTING.md.
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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 Rust language trademark policy.
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