error: usage of `contains_key` followed by `insert` on a `HashMap` --> $DIR/entry_with_else.rs:16:5 | LL | / if !m.contains_key(&k) { LL | | m.insert(k, v); LL | | } else { LL | | m.insert(k, v2); LL | | } | |_____^ | = note: `-D clippy::map-entry` implied by `-D warnings` help: try this | LL ~ match m.entry(k) { LL + std::collections::hash_map::Entry::Vacant(e) => { LL + e.insert(v); LL + } LL + std::collections::hash_map::Entry::Occupied(mut e) => { LL + e.insert(v2); ... error: usage of `contains_key` followed by `insert` on a `HashMap` --> $DIR/entry_with_else.rs:22:5 | LL | / if m.contains_key(&k) { LL | | m.insert(k, v); LL | | } else { LL | | m.insert(k, v2); LL | | } | |_____^ | help: try this | LL ~ match m.entry(k) { LL + std::collections::hash_map::Entry::Occupied(mut e) => { LL + e.insert(v); LL + } LL + std::collections::hash_map::Entry::Vacant(e) => { LL + e.insert(v2); ... error: usage of `contains_key` followed by `insert` on a `HashMap` --> $DIR/entry_with_else.rs:28:5 | LL | / if !m.contains_key(&k) { LL | | m.insert(k, v); LL | | } else { LL | | foo(); LL | | } | |_____^ | help: try this | LL ~ if let std::collections::hash_map::Entry::Vacant(e) = m.entry(k) { LL + e.insert(v); LL + } else { LL + foo(); LL + } | error: usage of `contains_key` followed by `insert` on a `HashMap` --> $DIR/entry_with_else.rs:34:5 | LL | / if !m.contains_key(&k) { LL | | foo(); LL | | } else { LL | | m.insert(k, v); LL | | } | |_____^ | help: try this | LL ~ if let std::collections::hash_map::Entry::Occupied(mut e) = m.entry(k) { LL + e.insert(v); LL + } else { LL + foo(); LL + } | error: usage of `contains_key` followed by `insert` on a `HashMap` --> $DIR/entry_with_else.rs:40:5 | LL | / if !m.contains_key(&k) { LL | | m.insert(k, v); LL | | } else { LL | | m.insert(k, v2); LL | | } | |_____^ | help: try this | LL ~ match m.entry(k) { LL + std::collections::hash_map::Entry::Vacant(e) => { LL + e.insert(v); LL + } LL + std::collections::hash_map::Entry::Occupied(mut e) => { LL + e.insert(v2); ... error: usage of `contains_key` followed by `insert` on a `HashMap` --> $DIR/entry_with_else.rs:46:5 | LL | / if m.contains_key(&k) { LL | | if true { m.insert(k, v) } else { m.insert(k, v2) } LL | | } else { LL | | m.insert(k, v) LL | | }; | |_____^ | help: try this | LL ~ match m.entry(k) { LL + std::collections::hash_map::Entry::Occupied(mut e) => { LL + if true { Some(e.insert(v)) } else { Some(e.insert(v2)) } LL + } LL + std::collections::hash_map::Entry::Vacant(e) => { LL + e.insert(v); ... error: usage of `contains_key` followed by `insert` on a `HashMap` --> $DIR/entry_with_else.rs:52:5 | LL | / if m.contains_key(&k) { LL | | foo(); LL | | m.insert(k, v) LL | | } else { LL | | None LL | | }; | |_____^ | help: try this | LL ~ if let std::collections::hash_map::Entry::Occupied(mut e) = m.entry(k) { LL + foo(); LL + Some(e.insert(v)) LL + } else { LL + None LL ~ }; | error: aborting due to 7 previous errors