Fix clippy warnings

src/buffer.rs

@@ -161,8 +161,7 @@ impl Buffer {
                       x,
                       y,
                       self.area);
-        let index = ((y - self.area.y) * self.area.width + (x - self.area.x)) as usize;
-        index
+        ((y - self.area.y) * self.area.width + (x - self.area.x)) as usize
     }
 
     /// Returns the coordinates of a cell given its index
@@ -188,7 +187,7 @@ impl Buffer {
         for s in graphemes.into_iter().take(max_index) {
             self.content[index].symbol.clear();
             self.content[index].symbol.push_str(s);
-            self.content[index].style = style.clone();
+            self.content[index].style = *style;
             index += 1;
         }
     }

src/style.rs

@@ -143,26 +143,19 @@ impl Color {
 }
 
 fn rgb_to_byte(r: u8, g: u8, b: u8) -> u16 {
-    (((r & 255 & 0xC0) + (g & 255 & 0xE0) >> 2 + (b & 0xE0) >> 5) & 0xFF) as u16
+    ((((r & 255 & 0xC0) + ((g & 255 & 0xE0) >> 2) + ((b & 0xE0) >> 5))) & 0xFF) as u16
 }
 
 impl Into<rustbox::Color> for Color {
     fn into(self) -> rustbox::Color {
         match self {
             Color::Reset => rustbox::Color::Default,
-            Color::Black => rustbox::Color::Black,
-            Color::Red => rustbox::Color::Red,
-            Color::Green => rustbox::Color::Green,
-            Color::Yellow => rustbox::Color::Yellow,
-            Color::Magenta => rustbox::Color::Magenta,
-            Color::Cyan => rustbox::Color::Cyan,
-            Color::Gray => rustbox::Color::Black,
-            Color::DarkGray => rustbox::Color::Black,
-            Color::LightRed => rustbox::Color::Red,
-            Color::LightGreen => rustbox::Color::Green,
-            Color::LightYellow => rustbox::Color::Yellow,
-            Color::LightMagenta => rustbox::Color::Magenta,
-            Color::LightCyan => rustbox::Color::Cyan,
+            Color::Black | Color::Gray | Color::DarkGray => rustbox::Color::Black,
+            Color::Red | Color::LightRed => rustbox::Color::Red,
+            Color::Green | Color::LightGreen => rustbox::Color::Green,
+            Color::Yellow | Color::LightYellow => rustbox::Color::Yellow,
+            Color::Magenta | Color::LightMagenta => rustbox::Color::Magenta,
+            Color::Cyan | Color::LightCyan => rustbox::Color::Cyan,
             Color::White => rustbox::Color::White,
             Color::Rgb(r, g, b) => rustbox::Color::Byte(rgb_to_byte(r, g, b)),
         }
@@ -195,7 +188,6 @@ impl Modifier {
 impl Into<rustbox::Style> for Modifier {
     fn into(self) -> rustbox::Style {
         match self {
-            Modifier::Reset => rustbox::RB_NORMAL,
             Modifier::Bold => rustbox::RB_BOLD,
             Modifier::Underline => rustbox::RB_UNDERLINE,
             Modifier::Invert => rustbox::RB_REVERSE,

src/terminal.rs

@@ -229,7 +229,7 @@ impl<B> Terminal<B>
     /// clean outdated ones at the end of the draw call.
     pub fn compute_layout(&mut self, group: &Group, area: &Rect) -> Vec<Rect> {
         let entry = self.layout_cache
-            .entry((group.clone(), area.clone()))
+            .entry((group.clone(), *area))
             .or_insert_with(|| {
                 let chunks = split(area, &group.direction, group.margin, &group.sizes);
                 debug!("New layout computed:\n* Group = {:?}\n* Chunks = {:?}",
@@ -291,7 +291,7 @@ impl<B> Terminal<B>
         // Clean layout cache
         let hot = self.layout_cache
             .drain()
-            .filter(|&(_, ref v)| v.hot == true)
+            .filter(|&(_, ref v)| v.hot)
             .collect::<Vec<((Group, Rect), LayoutEntry)>>();
 
         for (key, value) in hot {

src/widgets/gauge.rs

@@ -93,7 +93,7 @@ impl<'a> Widget for Gauge<'a> {
                 let label = self.label.unwrap_or(&precent_label);
                 let label_width = label.width() as u16;
                 let middle = (gauge_area.width - label_width) / 2 + gauge_area.left();
-                buf.set_string(middle, y, &label, &self.style);
+                buf.set_string(middle, y, label, &self.style);
             }
 
             // Fix colors

src/widgets/list.rs

@@ -72,7 +72,7 @@ impl<'a, T> Widget for List<'a, T>
                             list_area.top() + i as u16,
                             item.as_ref(),
                             list_area.width as usize,
-                            &style);
+                            style);
         }
     }
 }
@@ -193,7 +193,7 @@ impl<'a> Widget for SelectableList<'a> {
 
         // Render items
         List::default()
-            .block(self.block.unwrap_or(Default::default()))
+            .block(self.block.unwrap_or_default())
             .items(&items)
             .draw(area, buf);
     }