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Merge #84

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84: Implement Eq and PartialEq for Indexmap r=japaric a=XOSplicer

ref #56 

Co-authored-by: Felix Stegmaier <stegmaier.felix@gmail.com>
This commit is contained in:
bors[bot] 2019-02-14 19:41:03 +00:00
commit 773360b5fd
1 changed files with 59 additions and 0 deletions
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59
src/indexmap.rs
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@ -781,6 +781,34 @@ where
}
}
impl<K, V, N, S, N2, S2> PartialEq<IndexMap<K, V, N2, S2>> for IndexMap<K, V, N, S>
where
K: Eq + Hash,
V: Eq,
S: BuildHasher,
N: ArrayLength<Bucket<K, V>> + ArrayLength<Option<Pos>>,
S2: BuildHasher,
N2: ArrayLength<Bucket<K, V>> + ArrayLength<Option<Pos>>,
{
fn eq(&self, other: &IndexMap<K, V, N2, S2>) -> bool {
self.len() == other.len()
&& self
.iter()
.all(|(key, value)| other.get(key).map_or(false, |v| *value == *v))
}
}
impl<K, V, N, S> Eq for IndexMap<K, V, N, S>
where
K: Eq + Hash,
V: Eq,
S: BuildHasher,
N: ArrayLength<Bucket<K, V>> + ArrayLength<Option<Pos>>,
{
}
impl<K, V, N, S> Extend<(K, V)> for IndexMap<K, V, N, S>
where
K: Eq + Hash,
@ -944,4 +972,35 @@ mod tests {
mem::size_of::<usize>() // entries.length
)
}
#[test]
fn partial_eq() {
{
let mut a: FnvIndexMap<_, _, U4> = FnvIndexMap::new();
a.insert("k1", "v1").unwrap();
let mut b: FnvIndexMap<_, _, U4> = FnvIndexMap::new();
b.insert("k1", "v1").unwrap();
assert!(a == b);
b.insert("k2", "v2").unwrap();
assert!(a != b);
}
{
let mut a: FnvIndexMap<_, _, U4> = FnvIndexMap::new();
a.insert("k1", "v1").unwrap();
a.insert("k2", "v2").unwrap();
let mut b: FnvIndexMap<_, _, U4> = FnvIndexMap::new();
b.insert("k2", "v2").unwrap();
b.insert("k1", "v1").unwrap();
assert!(a == b);
}
}
}