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Introduce a new fingerprint field to TextSummary

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This is calculated in `Rope` and uses the `bromberg_sl2` homomorphic
hash function to determine the fingerprint of a single chunk and
compose each chunk fingerprint into a single fingerprint for the entire
rope that is equivalent to hashing all the rope's bytes at once.
This commit is contained in:
Antonio Scandurra 2022-06-17 11:45:26 +02:00
parent cef85f5d84
commit c31a233aad
6 changed files with 33 additions and 22 deletions
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10
crates/editor/src/multi_buffer.rs
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@ -1923,15 +1923,7 @@ impl MultiBufferSnapshot {
);
if range.end > end_before_newline {
summary.add_assign(&D::from_text_summary(&TextSummary {
bytes: 1,
lines: Point::new(1 as u32, 0),
lines_utf16: PointUtf16::new(1 as u32, 0),
first_line_chars: 0,
last_line_chars: 0,
longest_row: 0,
longest_row_chars: 0,
}));
summary.add_assign(&D::from_text_summary(&TextSummary::from("\n")));
}
cursor.next(&());