FAQ for borrow check error with find/insert into containers #6806
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E-easy
Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.
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This seems like something we should make sure to have before unleashing borrow check errors upon the world. Nominating production-ready. |
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There's now a container tutorial, so that's a good place to put this. I already covered freezing as relevant to iterators, but not this. |
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Just a bug. More docs are always good, but we don't need to block on this. |
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Can this be closed? What's the situation with containers now? The borrow checker has changed a lot. |
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It's been a month, and so I'm closing this for inactivity. If there's something still missing here, please let me know. |
flip1995
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Jun 3, 2021
…p1995,phansch Add avoid_breaking_exported_api config option changelog: Add `avoid_breaking_exported_api` config option for [`enum_variant_names`], [`large_types_passed_by_value`], [`trivially_copy_pass_by_ref`], [`unnecessary_wraps`], [`upper_case_acronyms`] and [`wrong_self_convention`]. changelog: Deprecates [`pub_enum_variant_names`] and [`wrong_pub_self_convention`] as the non-pub variants are now configurable. changelog: Fix various false negatives for `pub` items that are not exported from the crate. A couple changes to late passes in order to use `cx.access_levels.is_exported` rather than `item.vis.kind.is_pub`. I'm not sure how to better document the config option or lints that are (not) affected (see comments in rust-lang#6806). Suggestions are welcome. cc `@rust-lang/clippy` I added `/clippy.toml` to use the config internally and `/tests/clippy.toml` to maintain a default config in ui tests. Closes rust-lang#6806 Closes rust-lang#4504
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There's a common borrow check error that results from trying to insert into a container (usually a hash map) in the
Nonebranch after afindcall. We should document the solution to this—namely,find_or_insertand friends.The text was updated successfully, but these errors were encountered: