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@ -30,12 +30,14 @@ impl Range {
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/// Start of the range.
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#[inline]
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#[must_use]
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pub fn from(&self) -> usize {
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std::cmp::min(self.anchor, self.head)
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}
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/// End of the range.
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#[inline]
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#[must_use]
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pub fn to(&self) -> usize {
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std::cmp::max(self.anchor, self.head)
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}
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@ -47,6 +49,7 @@ impl Range {
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}
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/// Check two ranges for overlap.
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#[must_use]
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pub fn overlaps(&self, other: &Self) -> bool {
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// cursor overlap is checked differently
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if self.is_empty() {
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@ -59,6 +62,7 @@ impl Range {
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// TODO: map
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/// Extend the range to cover at least `from` `to`.
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#[must_use]
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pub fn extend(&self, from: usize, to: usize) -> Self {
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if from <= self.anchor && to >= self.anchor {
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return Range {
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@ -90,12 +94,14 @@ pub struct Selection {
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impl Selection {
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// map
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// eq
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#[must_use]
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pub fn primary(&self) -> Range {
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self.ranges[self.primary_index]
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}
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/// Ensure selection containing only the primary selection.
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pub fn as_single(self) -> Self {
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pub fn into_single(self) -> Self {
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if self.ranges.len() == 1 {
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self
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} else {
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@ -109,6 +115,7 @@ impl Selection {
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// add_range // push
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// replace_range
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#[must_use]
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/// Constructs a selection holding a single range.
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pub fn single(anchor: usize, head: usize) -> Self {
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Self {
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@ -117,11 +124,12 @@ impl Selection {
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}
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}
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#[must_use]
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pub fn new(ranges: SmallVec<[Range; 1]>, primary_index: usize) -> Self {
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fn normalize(mut ranges: SmallVec<[Range; 1]>, primary_index: usize) -> Selection {
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fn normalize(mut ranges: SmallVec<[Range; 1]>, mut primary_index: usize) -> Selection {
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let primary = ranges[primary_index];
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ranges.sort_unstable_by_key(|range| range.from());
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let mut primary_index = ranges.iter().position(|&range| range == primary).unwrap();
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ranges.sort_unstable_by_key(Range::from);
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primary_index = ranges.iter().position(|&range| range == primary).unwrap();
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let mut result: SmallVec<[Range; 1]> = SmallVec::new();
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