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Only print the fields that are relevant to iterators for Debug of IntoKeys and IntoValues

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Nazım Can Altınova 2020-08-07 13:47:04 +02:00
parent 29d9233cf6
commit 25545ed180
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1 changed files with 2 additions and 2 deletions
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library/std/src/collections/hash/map.rs
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@ -1921,7 +1921,7 @@ impl<K, V> FusedIterator for IntoKeys<K, V> {}
#[unstable(feature = "map_into_keys_values", issue = "55214")]
impl<K: Debug, V: Debug> fmt::Debug for IntoKeys<K, V> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_list().entries(self.inner.iter()).finish()
f.debug_list().entries(self.inner.iter().map(|(k, _)| k)).finish()
}
}
@ -1951,7 +1951,7 @@ impl<K, V> FusedIterator for IntoValues<K, V> {}
#[unstable(feature = "map_into_keys_values", issue = "55214")]
impl<K: Debug, V: Debug> fmt::Debug for IntoValues<K, V> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_list().entries(self.inner.iter()).finish()
f.debug_list().entries(self.inner.iter().map(|(_, v)| v)).finish()
}
}