Chore: removed uneeded lifetime annotation and needless type cast

src/buffer.rs

@@ -306,7 +306,7 @@ impl Buffer {
         (x_offset as u16, y)
     }
 
-    pub fn set_spans<'a>(&mut self, x: u16, y: u16, spans: &Spans<'a>, width: u16) -> (u16, u16) {
+    pub fn set_spans(&mut self, x: u16, y: u16, spans: &Spans<'_>, width: u16) -> (u16, u16) {
         let mut remaining_width = width;
         let mut x = x;
         for span in &spans.0 {
@@ -327,7 +327,7 @@ impl Buffer {
         (x, y)
     }
 
-    pub fn set_span<'a>(&mut self, x: u16, y: u16, span: &Span<'a>, width: u16) -> (u16, u16) {
+    pub fn set_span(&mut self, x: u16, y: u16, span: &Span<'_>, width: u16) -> (u16, u16) {
         self.set_stringn(x, y, span.content.as_ref(), width as usize, span.style)
     }
 

src/widgets/list.rs

@@ -243,11 +243,11 @@ impl<'a> StatefulWidget for List<'a> {
                         list_area.width as usize,
                         item_style,
                     );
-                    (elem_x, (list_area.width - (elem_x - x)) as u16)
+                    (elem_x, (list_area.width - (elem_x - x)))
                 } else {
                     (x, list_area.width)
                 };
-                buf.set_spans(elem_x, y + j as u16, line, max_element_width as u16);
+                buf.set_spans(elem_x, y + j as u16, line, max_element_width);
             }
             if is_selected {
                 buf.set_style(area, self.highlight_style);