bjoernager/rust
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Remove box syntax from Box<dyn Iterator> construction

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The iterators created should be pretty light weight.
This commit is contained in:
est31 2022-07-11 00:16:01 +02:00
parent cb5e94bb62
commit 1ac17fcddb
1 changed files with 8 additions and 6 deletions
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14
src/librustdoc/html/format.rs
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@ -737,21 +737,23 @@ pub(crate) fn href_relative_parts<'fqp>(
if f != r { if f != r {
let dissimilar_part_count = relative_to_fqp.len() - i; let dissimilar_part_count = relative_to_fqp.len() - i;
let fqp_module = &fqp[i..fqp.len()]; let fqp_module = &fqp[i..fqp.len()];
return box iter::repeat(sym::dotdot) return Box::new(
.take(dissimilar_part_count) iter::repeat(sym::dotdot)
.chain(fqp_module.iter().copied()); .take(dissimilar_part_count)
.chain(fqp_module.iter().copied()),
);
} }
} }
// e.g. linking to std::sync::atomic from std::sync // e.g. linking to std::sync::atomic from std::sync
if relative_to_fqp.len() < fqp.len() { if relative_to_fqp.len() < fqp.len() {
box fqp[relative_to_fqp.len()..fqp.len()].iter().copied() Box::new(fqp[relative_to_fqp.len()..fqp.len()].iter().copied())
// e.g. linking to std::sync from std::sync::atomic // e.g. linking to std::sync from std::sync::atomic
} else if fqp.len() < relative_to_fqp.len() { } else if fqp.len() < relative_to_fqp.len() {
let dissimilar_part_count = relative_to_fqp.len() - fqp.len(); let dissimilar_part_count = relative_to_fqp.len() - fqp.len();
box iter::repeat(sym::dotdot).take(dissimilar_part_count) Box::new(iter::repeat(sym::dotdot).take(dissimilar_part_count))
// linking to the same module // linking to the same module
} else { } else {
box iter::empty() Box::new(iter::empty())
} }
} }