2 files changed, 6 insertions, 5 deletions

diff --git a/crates/ra_ide_db/Cargo.toml b/crates/ra_ide_db/Cargo.toml
index bcddad60c..2716a38cc 100644
--- a/crates/ra_ide_db/Cargo.toml
+++ b/crates/ra_ide_db/Cargo.toml
@@ -16,10 +16,11 @@ log = "0.4.8"
 rayon = "1.3.0"
 fst = { version = "0.4", default-features = false }
 rustc-hash = "1.1.0"
-superslice = "1.0.0"
 once_cell = "1.3.1"
 either = "1.5.3"
 
+stdx = { path = "../stdx" }
+
 ra_syntax = { path = "../ra_syntax" }
 ra_text_edit = { path = "../ra_text_edit" }
 ra_db = { path = "../ra_db" }
diff --git a/crates/ra_ide_db/src/line_index.rs b/crates/ra_ide_db/src/line_index.rs
index c7c744fce..2ab662098 100644
--- a/crates/ra_ide_db/src/line_index.rs
+++ b/crates/ra_ide_db/src/line_index.rs
@@ -4,7 +4,7 @@ use std::iter;
 
 use ra_syntax::{TextRange, TextSize};
 use rustc_hash::FxHashMap;
-use superslice::Ext;
+use stdx::partition_point;
 
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct LineIndex {
@@ -89,7 +89,7 @@ impl LineIndex {
     }
 
     pub fn line_col(&self, offset: TextSize) -> LineCol {
-        let line = self.newlines.upper_bound(&offset) - 1;
+        let line = partition_point(&self.newlines, |&it| it <= offset) - 1;
         let line_start_offset = self.newlines[line];
         let col = offset - line_start_offset;
 
@@ -103,8 +103,8 @@ impl LineIndex {
     }
 
     pub fn lines(&self, range: TextRange) -> impl Iterator<Item = TextRange> + '_ {
-        let lo = self.newlines.lower_bound(&range.start());
-        let hi = self.newlines.upper_bound(&range.end());
+        let lo = partition_point(&self.newlines, |&it| it < range.start());
+        let hi = partition_point(&self.newlines, |&it| it <= range.end());
         let all = iter::once(range.start())
             .chain(self.newlines[lo..hi].iter().copied())
             .chain(iter::once(range.end()));