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Fix line index rebuild during incremental changes

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This commit is contained in:
Laurențiu Nicola 2020-05-04 20:04:30 +03:00
parent 191abf3685
commit 7c1d5f286a
1 changed files with 5 additions and 5 deletions
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10
crates/rust-analyzer/src/main_loop.rs
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@ -676,13 +676,13 @@ fn apply_document_changes(
// remember the last valid line in the index and only rebuild it if needed.
enum IndexValid {
All,
UpToLine(u64),
UpToLineExclusive(u64),
}
impl IndexValid {
fn covers(&self, line: u64) -> bool {
match *self {
IndexValid::UpToLine(to) => to >= line,
IndexValid::UpToLineExclusive(to) => to > line,
_ => true,
}
}
@ -692,10 +692,10 @@ fn apply_document_changes(
for change in content_changes {
match change.range {
Some(range) => {
if !index_valid.covers(range.start.line) {
if !index_valid.covers(range.end.line) {
line_index = Cow::Owned(LineIndex::new(&old_text));
}
index_valid = IndexValid::UpToLine(range.start.line);
index_valid = IndexValid::UpToLineExclusive(range.start.line);
let range = range.conv_with(&line_index);
let mut text = old_text.to_owned();
match std::panic::catch_unwind(move || {
@ -713,7 +713,7 @@ fn apply_document_changes(
}
None => {
*old_text = change.text;
index_valid = IndexValid::UpToLine(0);
index_valid = IndexValid::UpToLineExclusive(0);
}
}
}