melib/backends.rs: impl Into<BTreeSet<EnvelopeHash>> for EnvelopeHashBatch
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a7a50d3078
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b87d54ea3f
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@ -663,6 +663,12 @@ impl std::convert::TryFrom<&[EnvelopeHash]> for EnvelopeHashBatch {
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}
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}
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impl Into<BTreeSet<EnvelopeHash>> for &EnvelopeHashBatch {
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fn into(self) -> BTreeSet<EnvelopeHash> {
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self.iter().collect::<BTreeSet<EnvelopeHash>>()
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}
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}
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impl EnvelopeHashBatch {
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pub fn iter(&self) -> impl std::iter::Iterator<Item = EnvelopeHash> + '_ {
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std::iter::once(self.first).chain(self.rest.iter().cloned())
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@ -671,6 +677,10 @@ impl EnvelopeHashBatch {
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pub fn len(&self) -> usize {
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1 + self.rest.len()
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}
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pub fn to_set(&self) -> BTreeSet<EnvelopeHash> {
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self.into()
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}
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}
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#[derive(Default, Clone)]
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