Linter issue

Author: 38

plotters-svg/src/svg.rs

@@ -13,6 +13,7 @@ use std::fs::File;
 use std::io::Cursor;
 use std::io::{BufWriter, Error, Write};
 use std::path::Path;
+use std::fmt::Write as _;
 
 fn make_svg_color(color: BackendColor) -> String {
     let (r, g, b) = color.rgb;
@@ -314,7 +315,7 @@ impl<'a> DrawingBackend for SVGBackend<'a> {
                 (
                     "points",
                     &path.into_iter().fold(String::new(), |mut s, (x, y)| {
-                        s.push_str(&format!("{},{} ", x, y));
+                        write!(s, "{},{} ", x, y).ok();
                         s
                     }),
                 ),
@@ -340,7 +341,7 @@ impl<'a> DrawingBackend for SVGBackend<'a> {
                 (
                     "points",
                     &path.into_iter().fold(String::new(), |mut s, (x, y)| {
-                        s.push_str(&format!("{},{} ", x, y));
+                        write!(s, "{},{} ", x, y).ok();
                         s
                     }),
                 ),

plotters/src/chart/builder.rs

@@ -253,7 +253,7 @@ impl<'a, 'b, DB: DrawingBackend> ChartBuilder<'a, 'b, DB> {
         size: S,
     ) -> &mut Self {
         let size = size.in_pixels(self.root_area);
-        self.label_area_size[pos as usize] = size.abs() as u32;
+        self.label_area_size[pos as usize] = size.unsigned_abs();
         self.overlap_plotting_area[pos as usize] = size < 0;
         self
     }

plotters/src/chart/state.rs

@@ -68,7 +68,7 @@ impl<'a, DB: DrawingBackend, CT: CoordTranslate> ChartContext<'a, DB, CT> {
     }
 }
 
-impl<'a, 'b, DB, CT> From<&ChartContext<'a, DB, CT>> for ChartState<CT>
+impl<'a, DB, CT> From<&ChartContext<'a, DB, CT>> for ChartState<CT>
 where
     DB: DrawingBackend,
     CT: CoordTranslate + Clone,

plotters/src/style/font/font_desc.rs

@@ -154,7 +154,7 @@ impl<'a> FontDesc<'a> {
     pub fn box_size(&self, text: &str) -> FontResult<(u32, u32)> {
         let ((min_x, min_y), (max_x, max_y)) = self.layout_box(text)?;
         let (w, h) = self.get_transform().transform(max_x - min_x, max_y - min_y);
-        Ok((w.abs() as u32, h.abs() as u32))
+        Ok((w.unsigned_abs(), h.unsigned_abs()))
     }
 
     /// Actually draws a font with a drawing function