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Use row range while building buffer range during diff line iteration

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Julia 2022-09-15 16:17:17 -04:00
parent 03b6f3e0bf
commit 446bf88655
1 changed files with 14 additions and 13 deletions
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27
crates/language/src/git.rs
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@ -1,7 +1,7 @@
use std::ops::Range;
use sum_tree::SumTree;
use text::{Anchor, BufferSnapshot, OffsetRangeExt, Point, ToOffset, ToPoint};
use text::{Anchor, BufferSnapshot, OffsetRangeExt, Point, ToPoint};
pub use git2 as libgit;
use libgit::{DiffLineType as GitDiffLineType, DiffOptions as GitOptions, Patch as GitPatch};
@ -203,7 +203,7 @@ impl BufferDiff {
assert!(line_item_count > 0);
let mut first_deletion_buffer_row: Option<u32> = None;
let mut buffer_byte_range: Option<Range<usize>> = None;
let mut buffer_row_range: Option<Range<u32>> = None;
let mut head_byte_range: Option<Range<usize>> = None;
for line_index in 0..line_item_count {
@ -212,15 +212,16 @@ impl BufferDiff {
let content_offset = line.content_offset() as isize;
let content_len = line.content().len() as isize;
match (kind, &mut buffer_byte_range, &mut head_byte_range) {
match (kind, &mut buffer_row_range, &mut head_byte_range) {
(GitDiffLineType::Addition, None, _) => {
let end = content_offset + content_len;
buffer_byte_range = Some(content_offset as usize..end as usize);
//guarenteed to be present for additions
let row = line.new_lineno().unwrap().saturating_sub(1);
buffer_row_range = Some(row..row + 1);
}
(GitDiffLineType::Addition, Some(buffer_byte_range), _) => {
let end = content_offset + content_len;
buffer_byte_range.end = end as usize;
let row = line.new_lineno().unwrap().saturating_sub(1);
buffer_byte_range.end = row + 1;
}
(GitDiffLineType::Deletion, _, None) => {
@ -245,20 +246,20 @@ impl BufferDiff {
}
//unwrap_or deletion without addition
let buffer_byte_range = buffer_byte_range.unwrap_or_else(|| {
let buffer_byte_range = buffer_row_range.unwrap_or_else(|| {
//we cannot have an addition-less hunk without deletion(s) or else there would be no hunk
let row = first_deletion_buffer_row.unwrap();
let anchor = buffer.anchor_before(Point::new(row, 0));
let offset = anchor.to_offset(buffer);
offset..offset
row..row
});
//unwrap_or addition without deletion
let head_byte_range = head_byte_range.unwrap_or(0..0);
let start = Point::new(buffer_byte_range.start, 0);
let end = Point::new(buffer_byte_range.end, 0);
let buffer_range = buffer.anchor_before(start)..buffer.anchor_before(end);
DiffHunk {
buffer_range: buffer.anchor_before(buffer_byte_range.start)
..buffer.anchor_before(buffer_byte_range.end),
buffer_range,
head_byte_range,
}
}