Replace map().unwrap_or() with map_or()

Use a `map_or` instead of a `map().unwrap_or()` chain.

alacritty/src/display/hint.rs

@@ -412,7 +412,7 @@ fn hyperlink_at<T>(term: &Term<T>, point: Point) -> Option<(Hyperlink, Match)> {
         // the hyperlink we've found at original `point`.
         let line_contains_hyperlink = grid[next_line]
             .into_iter()
-            .any(|cell| cell.hyperlink().map(|h| h == hyperlink).unwrap_or(false));
+            .any(|cell| cell.hyperlink().map_or(false, |h| h == hyperlink));
 
         // There's no hyperlink on the next line, break.
         if !line_contains_hyperlink {
@@ -428,7 +428,7 @@ fn hyperlink_at<T>(term: &Term<T>, point: Point) -> Option<(Hyperlink, Match)> {
 
         let line_contains_hyperlink = grid[next_line]
             .into_iter()
-            .any(|cell| cell.hyperlink().map(|h| h == hyperlink).unwrap_or(false));
+            .any(|cell| cell.hyperlink().map_or(false, |h| h == hyperlink));
 
         if !line_contains_hyperlink {
             break;

alacritty/src/display/mod.rs

@@ -403,7 +403,7 @@ impl Display {
         // Guess scale_factor based on first monitor. On Wayland the initial frame always renders at
         // a scale factor of 1.
         let estimated_scale_factor = if cfg!(any(target_os = "macos", windows)) || is_x11 {
-            event_loop.available_monitors().next().map(|m| m.scale_factor()).unwrap_or(1.)
+            event_loop.available_monitors().next().map_or(1., |m| m.scale_factor())
         } else {
             1.
         };
@@ -628,7 +628,7 @@ impl Display {
 
         // Update number of column/lines in the viewport.
         let message_bar_lines =
-            message_buffer.message().map(|m| m.text(&self.size_info).len()).unwrap_or(0);
+            message_buffer.message().map_or(0, |m| m.text(&self.size_info).len());
         let search_lines = if search_active { 1 } else { 0 };
         self.size_info.reserve_lines(message_bar_lines + search_lines);
 
@@ -997,7 +997,7 @@ impl Display {
         if highlighted_hint.is_some() {
             // If mouse changed the line, we should update the hyperlink preview, since the
             // highlighted hint could be disrupted by the old preview.
-            dirty = self.hint_mouse_point.map(|p| p.line != point.line).unwrap_or(false);
+            dirty = self.hint_mouse_point.map_or(false, |p| p.line != point.line);
             self.hint_mouse_point = Some(point);
             self.window.set_mouse_cursor(CursorIcon::Hand);
         } else if self.highlighted_hint.is_some() {

alacritty/src/event.rs

@@ -254,7 +254,7 @@ impl<'a, N: Notify + 'a, T: EventListener> input::ActionContext<T> for ActionCon
     }
 
     fn selection_is_empty(&self) -> bool {
-        self.terminal.selection.as_ref().map(Selection::is_empty).unwrap_or(true)
+        self.terminal.selection.as_ref().map_or(true, Selection::is_empty)
     }
 
     fn clear_selection(&mut self) {
@@ -546,7 +546,7 @@ impl<'a, N: Notify + 'a, T: EventListener> input::ActionContext<T> for ActionCon
     fn search_pop_word(&mut self) {
         if let Some(regex) = self.search_state.regex_mut() {
             *regex = regex.trim_end().to_owned();
-            regex.truncate(regex.rfind(' ').map(|i| i + 1).unwrap_or(0));
+            regex.truncate(regex.rfind(' ').map_or(0, |i| i + 1));
             self.update_search();
         }
     }

alacritty/src/input.rs

@@ -717,13 +717,13 @@ impl<T: EventListener, A: ActionContext<T>> Processor<T, A> {
         {
             let size = self.ctx.size_info();
 
-            let current_lines = self.ctx.message().map(|m| m.text(&size).len()).unwrap_or(0);
+            let current_lines = self.ctx.message().map_or(0, |m| m.text(&size).len());
 
             self.ctx.clear_selection();
             self.ctx.pop_message();
 
             // Reset cursor when message bar height changed or all messages are gone.
-            let new_lines = self.ctx.message().map(|m| m.text(&size).len()).unwrap_or(0);
+            let new_lines = self.ctx.message().map_or(0, |m| m.text(&size).len());
 
             let new_icon = match current_lines.cmp(&new_lines) {
                 Ordering::Less => CursorIcon::Default,

alacritty/src/string.rs

@@ -90,7 +90,7 @@ impl<'a> StrShortener<'a> {
         }
 
         // Consume the iterator to count the number of characters in it.
-        let num_chars = iter.last().map(|(idx, _)| idx + 1).unwrap_or(offset);
+        let num_chars = iter.last().map_or(offset, |(idx, _)| idx + 1);
         let skip_chars = num_chars - offset;
 
         let text_action = if num_chars <= max_width || shortener.is_none() {

alacritty_terminal/src/ansi.rs

@@ -1155,8 +1155,9 @@ where
         let mut params_iter = params.iter();
         let handler = &mut self.handler;
 
-        let mut next_param_or = |default: u16| {
-            params_iter.next().map(|param| param[0]).filter(|&param| param != 0).unwrap_or(default)
+        let mut next_param_or = |default: u16| match params_iter.next() {
+            Some(&[param, ..]) if param != 0 => param,
+            _ => default,
         };
 
         match (action, intermediates) {

alacritty_terminal/src/grid/row.rs

@@ -76,7 +76,7 @@ impl<T: Clone + Default> Row<T> {
 
         // Split off cells for a new row.
         let mut new_row = self.inner.split_off(columns);
-        let index = new_row.iter().rposition(|c| !c.is_empty()).map(|i| i + 1).unwrap_or(0);
+        let index = new_row.iter().rposition(|c| !c.is_empty()).map_or(0, |i| i + 1);
         new_row.truncate(index);
 
         self.occ = min(self.occ, columns);

alacritty_terminal/src/tty/unix.rs

@@ -173,7 +173,7 @@ pub fn new(config: &PtyConfig, window_size: WindowSize, window_id: Option<usize>
 
     // Set $SHELL environment variable on macOS, since login does not do it for us.
     #[cfg(target_os = "macos")]
-    builder.env("SHELL", config.shell.as_ref().map(|sh| sh.program()).unwrap_or(pw.shell));
+    builder.env("SHELL", config.shell.as_ref().map_or(pw.shell, Program::program));
 
     if let Some(window_id) = window_id {
         builder.env("WINDOWID", format!("{}", window_id));