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Fix invalid suggestion on &mut iterators yielding & references - #70264
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estebank
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…r=estebank Fix invalid suggestion on `&mut` iterators yielding `&` references Fixesrust-lang#69789. rustc suggested an invalid code when `&` reference from `&mut` iterator is mutated. The compiler knew we're mutating a value behind `&` reference, but as the assignment RHS is from desugaring, it could only see the iterator expression from source and inserted `mut` there. r? @estebank
Centril added a commit
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…r=estebank Fix invalid suggestion on `&mut` iterators yielding `&` references Fixesrust-lang#69789. rustc suggested an invalid code when `&` reference from `&mut` iterator is mutated. The compiler knew we're mutating a value behind `&` reference, but as the assignment RHS is from desugaring, it could only see the iterator expression from source and inserted `mut` there. r? @estebank
This was referenced Mar 23, 2020
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Rollup of 11 pull requests Successful merges: - rust-lang#67761 (Move the dep_graph construction to a dedicated crate.) - rust-lang#69740 (Replace some desc logic in librustc_lint with article_and_desc) - rust-lang#69981 (Evaluate repeat expression lengths as late as possible) - rust-lang#70087 (Remove const eval loop detector) - rust-lang#70242 (Improve E0308 error message wording) - rust-lang#70264 (Fix invalid suggestion on `&mut` iterators yielding `&` references) - rust-lang#70267 (get rid of ConstPropUnsupported; use ZST marker structs instead) - rust-lang#70277 (Remove `ReClosureBound`) - rust-lang#70283 (Add regression test for rust-lang#70155.) - rust-lang#70294 (Account for bad placeholder types in where clauses) - rust-lang#70309 (Clean up E0452 explanation) Failed merges: r? @ghost
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Fixes#69789.
rustc suggested an invalid code when
&reference from&mutiterator is mutated. The compiler knew we're mutating a value behind&reference, but as the assignment RHS is from desugaring, it could only see the iterator expression from source and insertedmutthere.r? @estebank