rustc_typeck: do not overlap a borrow of TypeckTables with method lookup.#42480
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rustc_typeck: do not overlap a borrow of TypeckTables with method lookup.#42480bors merged 1 commit intorust-lang:masterfrom
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Nominating for backport because the bug has already reached beta. |
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r=me w/ or w/o comment
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maybe worth a comment here explaining why the remove-and-then-reinsert?
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📌 Commit b02e3a1 has been approved by |
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rustc_typeck: do not overlap a borrow of TypeckTables with method lookup. If trait selection is reached, it could potentially request a closure signature, which will have to borrow the `TypeckTables` of the current function, and so those tables *should not* be mutably borrowed. Fixes #42463. r? @nikomatsakis
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☀️ Test successful - status-appveyor, status-travis |
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If trait selection is reached, it could potentially request a closure signature, which will have to borrow the
TypeckTablesof the current function, and so those tables should not be mutably borrowed.Fixes #42463.
r? @nikomatsakis