1 files changed, 13 insertions, 4 deletions
diff --git a/rprt-engine/src/selection.rs b/rprt-engine/src/selection.rs
index 9e619a4..341c6ad 100644
--- a/rprt-engine/src/selection.rs
+++ b/rprt-engine/src/selection.rs
@@ -83,6 +83,15 @@ where
     SelectionError(SelectionError),
 }
 
+impl<E> From<E> for VectoriseError<E>
+where
+    E: std::error::Error + 'static,
+{
+    fn from(err: E) -> Self {
+        VectoriseError::ProcessingError(err)
+    }
+}
+
 impl Selection {
     pub fn empty() -> Self {
         Self::MultiRanges {
@@ -273,10 +282,10 @@ impl Selection {
     }
 
     pub fn vectorise<S, E>(
-        fn_rank_zero: impl Fn(&S, BufferID, usize) -> Result<Selection, E>,
-        fn_rank_one: impl Fn(&S, BufferID, &Interval) -> Result<Selection, E>,
+        &self,
         state: &S,
-        selection: &Selection,
+        fn_rank_zero: impl Fn(&S, BufferID, usize) -> Result<Selection, E> + 'static,
+        fn_rank_one: impl Fn(&S, BufferID, &Interval) -> Result<Selection, E> + 'static,
     ) -> Result<Selection, VectoriseError<E>>
     where
         E: std::error::Error + 'static,
@@ -289,7 +298,7 @@ impl Selection {
                 .collect::<Result<_, _>>()
         };
 
-        match selection {
+        match self {
             &Self::Position { buffer_id, pos } => {
                 fn_rank_zero(state, buffer_id, pos).map_err(ProcessingError)
             }