8000 `impl PartialEq` between `Slice` and `[]`/arrays by cuviper · Pull Request #376 · indexmap-rs/indexmap · GitHub
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impl PartialEq between Slice and []/arrays #376

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Merged
merged 3 commits into from
Mar 1, 2025
Merged

impl PartialEq between Slice and []/arrays #376

merged 3 commits into from
Mar 1, 2025

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@cuviper cuviper commented Feb 17, 2025 •
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Added comparisons between Slice and bare slices and arrays:

impl<K, V, K2, V2> PartialEq<[(K2, V2)]> for map::Slice<K, V>
where
    K: PartialEq<K2>,
    V: PartialEq<V2>,

impl<K, V, K2, V2> PartialEq<map::Slice<K2, V2>> for [(K, V)]
where
    K: PartialEq<K2>,
    V: PartialEq<V2>,

impl<K, V, K2, V2, const N: usize> PartialEq<[(K2, V2); N]> for map::Slice<K, V>
where
    K: PartialEq<K2>,
    V: PartialEq<V2>,

impl<K, V, const N: usize, K2, V2> PartialEq<map::Slice<K2, V2>> for [(K, V); N]
where
    K: PartialEq<K2>,
    V: PartialEq<V2>,

impl<T, U> PartialEq<[U]> for set::Slice<T>
where
    T: PartialEq<U>,

impl<T, U> PartialEq<set::Slice<U>> for [T]
where
    T: PartialEq<U>,

impl<T, U, const N: usize> PartialEq<[U; N]> for set::Slice<T>
where
    T: PartialEq<U>,

impl<T, const N: usize, U> PartialEq<set::Slice<U>> for [T; N]
where
    T: PartialEq<U>,

Updated Slice-to-Slice with more generic RHS:

impl<K, V, K2, V2> PartialEq<map::Slice<K2, V2>> for map::Slice<K, V>
where
    K: PartialEq<K2>,
    V: PartialEq<V2>,

impl<T, U> PartialEq<set::Slice<U>> for set::Slice<T>
where
    T: PartialEq<U>,

Resolves #375

@cuviper
impl PartialEq between Slice and []
cf9397f 
```rust
impl<K: PartialEq, V: PartialEq> PartialEq<[(K, V)]> for map::Slice<K, V> {...}
impl<K: PartialEq, V: PartialEq> PartialEq<map::Slice<K, V>> for [(K, V)] {...}

impl<T: PartialEq> PartialEq<[T]> for set::Slice<T> {...}
impl<T: PartialEq> PartialEq<set::Slice<T>> for [T] {...}
```

Resolves indexmap-rs#375
@cuviper
impl PartialEq for arrays too
6a83883
@cuviper cuviper mentioned this pull request Feb 17, 2025
Closed
@cuviper cuviper changed the title impl PartialEq between Slice and [] impl PartialEq between Slice and []/arrays Feb 17, 2025
@cuviper cuviper added this pull request to the merge queue Mar 1, 2025
Merged via the queue into indexmap-rs:main with commit 5b133ae Mar 1, 2025
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Feature request: PartialEq<[T]> for set::Slice, PartialEq<[(K, V)]> for map::Slice
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