shadowfacts/grass
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

remove superfluous clones in weave()

Browse Source
This commit is contained in:
Connor Skees 2020-07-04 13:43:09 -04:00
parent 05f5bc141a
commit fc36a7a1e8
1 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/selector/extend/functions.rs
View File

@ -66,28 +66,25 @@ pub(crate) fn unify_complex(
///
/// The selector `.D (.A .B)` is represented as the list `[[.D], [.A, .B]]`.
pub(crate) fn weave(
complexes: Vec<Vec<ComplexSelectorComponent>>,
mut complexes: Vec<Vec<ComplexSelectorComponent>>,
) -> Vec<Vec<ComplexSelectorComponent>> {
let mut prefixes: Vec<Vec<ComplexSelectorComponent>> = vec![complexes.first().unwrap().clone()];
let mut prefixes: Vec<Vec<ComplexSelectorComponent>> = vec![complexes.remove(0)];
for complex in complexes.into_iter().skip(1) {
for mut complex in complexes.into_iter() {
if complex.is_empty() {
continue;
}
let target = complex.last().unwrap().clone();
let target = complex.pop().unwrap();
let complex_len = complex.len();
if complex_len == 1 {
if complex.is_empty() {
for prefix in &mut prefixes {
prefix.push(target.clone());
}
continue;
}
let parents: Vec<ComplexSelectorComponent> =
complex.into_iter().take(complex_len - 1).collect();
let parents: Vec<ComplexSelectorComponent> = complex;
let mut new_prefixes: Vec<Vec<ComplexSelectorComponent>> = Vec::new();
for prefix in prefixes {