diff --git a/helix-core/src/state.rs b/helix-core/src/state.rs
index ffe88c3f6..aa3770919 100644
--- a/helix-core/src/state.rs
+++ b/helix-core/src/state.rs
@@ -358,7 +358,7 @@ fn skip_over_next<F>(slice: &RopeSlice, pos: &mut usize, fun: F)
 {
     let mut chars = slice.chars_at(*pos);
 
-    while let Some(ch) = chars.next() {
+    for ch in chars {
         if !fun(ch) {
             break;
         }
@@ -372,7 +372,6 @@ fn skip_over_prev<F>(slice: &RopeSlice, pos: &mut usize, fun: F)
 {
     // need to +1 so that prev() includes current char
     let mut chars = slice.chars_at(*pos + 1);
-    let mut chars = slice.chars_at(*pos + 1);
 
     while let Some(ch) = chars.prev() {
         if !fun(ch) {
diff --git a/helix-core/src/syntax.rs b/helix-core/src/syntax.rs
index 3d85ff256..638ec8eea 100644
--- a/helix-core/src/syntax.rs
+++ b/helix-core/src/syntax.rs
@@ -37,11 +37,11 @@ pub fn highlight_config(
 
                 let highlights_query =
                     std::fs::read_to_string(self.path.join("queries/highlights.scm"))
-                        .unwrap_or(String::new());
+                        .unwrap_or_default();
 
                 let injections_query =
                     std::fs::read_to_string(self.path.join("queries/injections.scm"))
-                        .unwrap_or(String::new());
+                        .unwrap_or_default();
 
                 let locals_query = "";
 
@@ -66,7 +66,7 @@ pub fn highlight_config(
 
 use once_cell::sync::Lazy;
 
-pub(crate) static LOADER: Lazy<Loader> = Lazy::new(|| Loader::init());
+pub(crate) static LOADER: Lazy<Loader> = Lazy::new(Loader::init);
 
 pub struct Loader {
     // highlight_names ?
@@ -159,7 +159,7 @@ pub fn new(
         // let grammar = get_language(&language);
         let parser = Parser::new();
 
-        let root_layer = LanguageLayer::new();
+        let root_layer = LanguageLayer { tree: None };
 
         // track markers of injections
         // track scope_descriptor: a Vec of scopes for item in tree
@@ -317,9 +317,9 @@ pub struct LanguageLayer {
 use crate::Tendril;
 
 impl LanguageLayer {
-    pub fn new() -> Self {
-        Self { tree: None }
-    }
+    // pub fn new() -> Self {
+    //     Self { tree: None }
+    // }
 
     fn tree(&self) -> &Tree {
         // TODO: no unwrap
diff --git a/helix-term/src/editor.rs b/helix-term/src/editor.rs
index 131c285ea..a3d6a04ed 100644
--- a/helix-term/src/editor.rs
+++ b/helix-term/src/editor.rs
@@ -209,12 +209,11 @@ fn render(&mut self) {
                     }
                 }
 
-                let mut line = 0;
                 let style: Style = view.theme.get("ui.linenr").into();
-                for i in view.first_line..(last_line as u16) {
+                for (i, line) in (view.first_line..(last_line as u16)).enumerate() {
                     self.surface
-                        .set_stringn(0, line, format!("{:>5}", i + 1), 5, style); // lavender
-                    line += 1;
+                        .set_stringn(0, line, format!("{:>5}", i + 1), 5, style);
+                    // lavender
                 }
 
                 // let lines = state
diff --git a/helix-view/src/commands.rs b/helix-view/src/commands.rs
index d611e4f66..bdfa57ec3 100644
--- a/helix-view/src/commands.rs
+++ b/helix-view/src/commands.rs
@@ -42,7 +42,7 @@ pub fn move_line_down(view: &mut View, count: usize) {
         .move_selection(Direction::Forward, Granularity::Line, count);
 }
 
-pub fn move_line_end(view: &mut View, count: usize) {
+pub fn move_line_end(view: &mut View, _count: usize) {
     // TODO: use a transaction
     let lines = selection_lines(&view.state);
 
@@ -64,7 +64,7 @@ pub fn move_line_end(view: &mut View, count: usize) {
     transaction.apply(&mut view.state);
 }
 
-pub fn move_line_start(view: &mut View, count: usize) {
+pub fn move_line_start(view: &mut View, _count: usize) {
     let lines = selection_lines(&view.state);
 
     let positions = lines
@@ -208,24 +208,24 @@ fn selection_lines(state: &State) -> Vec<usize> {
         .map(|range| state.doc.char_to_line(range.head))
         .collect::<Vec<_>>();
 
-    lines.sort();
+    lines.sort_unstable(); // sorting by usize so _unstable is preferred
     lines.dedup();
 
     lines
 }
 
 // I inserts at the start of each line with a selection
-pub fn prepend_to_line(view: &mut View, _count: usize) {
+pub fn prepend_to_line(view: &mut View, count: usize) {
     view.state.mode = Mode::Insert;
 
-    move_line_start(view, _count);
+    move_line_start(view, count);
 }
 
 // A inserts at the end of each line with a selection
-pub fn append_to_line(view: &mut View, _count: usize) {
+pub fn append_to_line(view: &mut View, count: usize) {
     view.state.mode = Mode::Insert;
 
-    move_line_end(view, _count);
+    move_line_end(view, count);
 }
 
 // o inserts a new line after each line with a selection
diff --git a/helix-view/src/theme.rs b/helix-view/src/theme.rs
index d61457d73..4cc399ed4 100644
--- a/helix-view/src/theme.rs
+++ b/helix-view/src/theme.rs
@@ -173,6 +173,7 @@ pub fn get(&self, scope: &str) -> Style {
             .unwrap_or_else(|| Style::default().fg(Color::Rgb(0, 0, 255)))
     }
 
+    #[inline]
     pub fn scopes(&self) -> &[String] {
         &self.scopes
     }
diff --git a/helix-view/src/view.rs b/helix-view/src/view.rs
index 0900b0ca1..d96752d04 100644
--- a/helix-view/src/view.rs
+++ b/helix-view/src/view.rs
@@ -13,11 +13,11 @@ pub struct View {
 }
 
 impl View {
-    pub fn open(path: PathBuf, size: (u16, u16)) -> Result<View, Error> {
+    pub fn open(path: PathBuf, size: (u16, u16)) -> Result<Self, Error> {
         let theme = Theme::default();
         let state = State::load(path, theme.scopes())?;
 
-        let view = View {
+        let view = Self {
             state,
             first_line: 0,
             size, // TODO: pass in from term