webrender: Directly return let result.

webrender/src/clip_scroll_tree.rs

@@ -251,14 +251,13 @@ impl ClipScrollTree {
                 scroll_node_at_point_index
             }
             (_, scroll_node_at_point_index, Some(cached_node_index)) => {
-                let node_index = match self.nodes.get(cached_node_index.0) {
+                match self.nodes.get(cached_node_index.0) {
                     Some(_) => cached_node_index,
                     None => {
                         self.currently_scrolling_node_index = Some(scroll_node_at_point_index);
                         scroll_node_at_point_index
                     }
-                };
-                node_index
+                }
             }
             (_, _, None) => return false,
         };

webrender/src/display_list_flattener.rs

@@ -870,16 +870,14 @@ impl<'a> DisplayListFlattener<'a> {
             Some(self.clip_store.insert(ClipSources::new(clip_sources)))
         };
 
-        let prim_index = self.prim_store.add_primitive(
+        self.prim_store.add_primitive(
             &info.rect,
             &info.clip_rect,
             info.is_backface_visible && stacking_context.is_backface_visible,
             clip_sources,
             info.tag,
             container,
-        );
-
-        prim_index
+        )
     }
 
     pub fn add_primitive_to_hit_testing_list(

webrender/src/platform/macos/font.rs

@@ -147,16 +147,14 @@ fn get_glyph_metrics(
     let width = right - left;
     let height = top - bottom;
 
-    let metrics = GlyphMetrics {
+    GlyphMetrics {
         rasterized_left: left,
         rasterized_width: width as u32,
         rasterized_height: height as u32,
         rasterized_ascent: top,
         rasterized_descent: -bottom,
         advance: advance.width as f32,
-    };
-
-    metrics
+    }
 }
 
 #[link(name = "ApplicationServices", kind = "framework")]

webrender/src/render_task.rs

@@ -508,7 +508,7 @@ impl RenderTask {
 
         let blur_task_v_id = render_tasks.add(blur_task_v);
 
-        let blur_task_h = RenderTask {
+        RenderTask {
             children: vec![blur_task_v_id],
             location: RenderTaskLocation::Dynamic(None, adjusted_blur_target_size),
             kind: RenderTaskKind::HorizontalBlur(BlurTask {
@@ -518,9 +518,7 @@ impl RenderTask {
             }),
             clear_mode,
             saved_index: None,
-        };
-
-        blur_task_h
+        }
     }
 
     pub fn new_scaling(

webrender/src/spring.rs

@@ -100,8 +100,7 @@ fn next(cur: f32, prev: f32, dest: f32, stiffness: f32, damping: f32) -> f32 {
     let nextv = vel + acc;
 
     // Calculate next position by integrating velocity. Scale to framerate.
-    let next = cur + nextv;
-    next
+    cur + nextv
 }
 
 /// Given numbers, calculate if a spring is at rest.