Skip to content

use partition_point instead of binary_search when looking up source lines #101999

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 22, 2022
+3 −4
Merged

use partition_point instead of binary_search when looking up source lines #101999

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 3 additions & 4 deletions compiler/rustc_span/src/lib.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1631,10 +1631,9 @@ impl SourceFile {
/// number. If the source_file is empty or the position is located before the
/// first line, `None` is returned.
pub fn lookup_line(&self, pos: BytePos) -> Option<usize> {
self.lines(|lines| match lines.binary_search(&pos) {
Ok(idx) => Some(idx),
Err(0) => None,
Err(idx) => Some(idx - 1),
self.lines(|lines| match lines.partition_point(|x| x <= &pos) {
0 => None,
i => Some(i - 1),
})
}

Expand Down