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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:11:38 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:13:23 +0000 |
commit | 20431706a863f92cb37dc512fef6e48d192aaf2c (patch) | |
tree | 2867f13f5fd5437ba628c67d7f87309ccadcd286 /vendor/itertools/src/unique_impl.rs | |
parent | Releasing progress-linux version 1.65.0+dfsg1-2~progress7.99u1. (diff) | |
download | rustc-20431706a863f92cb37dc512fef6e48d192aaf2c.tar.xz rustc-20431706a863f92cb37dc512fef6e48d192aaf2c.zip |
Merging upstream version 1.66.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/itertools/src/unique_impl.rs')
-rw-r--r-- | vendor/itertools/src/unique_impl.rs | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/vendor/itertools/src/unique_impl.rs b/vendor/itertools/src/unique_impl.rs index 2240f36ed..4e81e78ec 100644 --- a/vendor/itertools/src/unique_impl.rs +++ b/vendor/itertools/src/unique_impl.rs @@ -1,6 +1,5 @@ - use std::collections::HashMap; -use std::collections::hash_map::{Entry}; +use std::collections::hash_map::Entry; use std::hash::Hash; use std::fmt; use std::iter::FusedIterator; @@ -12,7 +11,9 @@ use std::iter::FusedIterator; #[must_use = "iterator adaptors are lazy and do nothing unless consumed"] pub struct UniqueBy<I: Iterator, V, F> { iter: I, - // Use a hashmap for the entry API + // Use a Hashmap for the Entry API in order to prevent hashing twice. + // This can maybe be replaced with a HashSet once `get_or_insert_with` + // or a proper Entry API for Hashset is stable and meets this msrv used: HashMap<V, ()>, f: F, } |