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fix compilation warnings#11522
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dvdplm
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| impl<K: Eq + Hash, V> Len for HashMap<K, V> { | ||
| impl<K: Eq + Hash, V, S: std::hash::BuildHasher> Len for HashMap<K, V, S> { |
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question: does this make it more generic instead of using https://doc.rust-lang.org/std/collections/hash_map/struct.RandomState.html?
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that's what the compiler told me to do
warning: impl for `HashMap` should be generalized over different hashers
--> util/len-caching-lock/src/lib.rs:69:31
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69 | impl<K: Eq + Hash, V> Len for HashMap<K, V> {
| ^^^^^^^^^^^^^
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= note: `#[warn(clippy::implicit_hasher)]` on by default
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#implicit_hasher
help: consider adding a type parameter
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69 | impl<K: Eq + Hash, V, S: ::std::hash::BuildHasher> Len for HashMap<K, V, S> {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^
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Ok, yeah I think what I wrote is correct because https://doc.rust-lang.org/src/std/collections/hash/map.rs.html#202, uses a default type parameter. Then you can't use your custom Hasher.
Clippy lint: https://rust-lang.github.io/rust-clippy/master/#implicit_hasher
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* master: fix compilation warnings (#11522)
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* master: (27 commits) Faster kill_garbage (#11514) [EngineSigner]: don't sign message with only zeroes (#11524) fix compilation warnings (#11522) [ethcore cleanup]: various unrelated fixes from `#11493` (#11507) Add benchmark for transaction execution (#11509) Add Smart Contract License v1.0 Misc fixes (#11510) [dependencies]: unify `rustc-hex` (#11506) Activate on-chain randomness in POA Sokol (#11505) Grab bag of cleanup (#11504) Implement eth/64 (EIP-2364) and drop support for eth/62 (#11472) [dependencies]: remove `util/macros` (#11501) OpenEthereum bootnodes are added (#11499) [ci benches]: use `all-features` (#11496) [verification]: make test-build compile standalone (#11495) complete null-signatures removal (#11491) Include the seal when populating the header for a new block (#11475) fix compilation warnings (#11492) cargo update -p cmake (#11490) update to published rlp-derive (#11489) ...
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