Only shift one specific suspect's line range

Author: cruessler

gix-blame/src/lib.rs

@@ -197,17 +197,10 @@ impl UnblamedHunk {
         }
     }
 
-    fn shift_by(&self, offset: Offset) -> Self {
-        let new_suspects = self
-            .suspects
-            .iter()
-            .map(|(suspect, range)| (*suspect, range.shift_by(offset)))
-            .collect();
+    fn shift_by(mut self, suspect: ObjectId, offset: Offset) -> Self {
+        self.suspects.entry(suspect).and_modify(|e| *e = e.shift_by(offset));
 
-        Self {
-            range_in_blamed_file: self.range_in_blamed_file.clone(),
-            suspects: new_suspects,
-        }
+        self
     }
 
     fn split_at(self, suspect: ObjectId, line_number_in_destination: u32) -> Either<Self, (Self, Self)> {
@@ -365,7 +358,7 @@ pub fn process_change(
                     // <-------->     (hunk)
                     //     <------->  (unchanged)
 
-                    new_hunks_to_blame.push(hunk.shift_by(*offset_in_destination));
+                    new_hunks_to_blame.push(hunk.shift_by(suspect, *offset_in_destination));
 
                     (None, Some(Change::Unchanged(unchanged)))
                 }
@@ -392,7 +385,7 @@ pub fn process_change(
                         //    <--->      (hunk)
                         // <---------->  (unchanged)
 
-                        new_hunks_to_blame.push(hunk.shift_by(*offset_in_destination));
+                        new_hunks_to_blame.push(hunk.shift_by(suspect, *offset_in_destination));
 
                         (None, Some(Change::Unchanged(unchanged.clone())))
                     }
@@ -417,7 +410,7 @@ pub fn process_change(
                     let new_hunk = match hunk.split_at(suspect, added.start) {
                         Either::Left(hunk) => hunk,
                         Either::Right((before, after)) => {
-                            new_hunks_to_blame.push(before.shift_by(*offset_in_destination));
+                            new_hunks_to_blame.push(before.shift_by(suspect, *offset_in_destination));
 
                             after
                         }
@@ -446,7 +439,7 @@ pub fn process_change(
                     let new_hunk = match hunk.split_at(suspect, added.start) {
                         Either::Left(hunk) => hunk,
                         Either::Right((before, after)) => {
-                            new_hunks_to_blame.push(before.shift_by(*offset_in_destination));
+                            new_hunks_to_blame.push(before.shift_by(suspect, *offset_in_destination));
 
                             after
                         }
@@ -507,7 +500,7 @@ pub fn process_change(
                         // <-->          (hunk)
                         //       <---->  (added)
 
-                        new_hunks_to_blame.push(hunk.shift_by(*offset_in_destination));
+                        new_hunks_to_blame.push(hunk.shift_by(suspect, *offset_in_destination));
 
                         (None, Some(Change::Added(added.clone(), number_of_lines_deleted)))
                     } else {
@@ -543,7 +536,7 @@ pub fn process_change(
                 let new_hunk = match hunk.split_at(suspect, line_number_in_destination) {
                     Either::Left(hunk) => hunk,
                     Either::Right((before, after)) => {
-                        new_hunks_to_blame.push(before.shift_by(*offset_in_destination));
+                        new_hunks_to_blame.push(before.shift_by(suspect, *offset_in_destination));
 
                         after
                     }
@@ -556,7 +549,7 @@ pub fn process_change(
                 //  <--->     (hunk)
                 //         |  (line_number_in_destination)
 
-                new_hunks_to_blame.push(hunk.shift_by(*offset_in_destination));
+                new_hunks_to_blame.push(hunk.shift_by(suspect, *offset_in_destination));
 
                 (
                     None,
@@ -565,7 +558,7 @@ pub fn process_change(
             }
         }
         (Some(hunk), None) => {
-            new_hunks_to_blame.push(hunk.shift_by(*offset_in_destination));
+            new_hunks_to_blame.push(hunk.shift_by(suspect, *offset_in_destination));
 
             (None, None)
         }