cargo clippy fix

Author: Neutroni

gnuplot/src/datatype.rs

@@ -72,7 +72,7 @@ impl DataType for Duration
 	}
 }
 
-impl<'l> DataType for &'l Duration
+impl DataType for &Duration
 {
 	fn get(&self) -> f64
 	{

gnuplot/src/figure.rs

@@ -16,7 +16,6 @@ use std::io::{BufWriter, Write};
 use std::path::{Path, PathBuf};
 use std::process::{Child, Command, Stdio};
 use std::str;
-use tempfile;
 
 enum AxesVariant
 {
@@ -175,7 +174,7 @@ impl Figure
 				.as_ref()
 				.and_then(|d| d.path().to_str())
 				.map(|s| s.into()),
-			data_tempdir: data_tempdir,
+			data_tempdir,
 		}
 	}
 
@@ -194,7 +193,7 @@ impl Figure
 		if self
 			.data_directory
 			.as_ref()
-			.map(|s| s == "")
+			.map(|s| s.is_empty())
 			.unwrap_or(false)
 		{
 			self.data_directory = self
@@ -402,7 +401,7 @@ impl Figure
 
 			if let Ok(version_string) = str::from_utf8(&output.stdout)
 			{
-				let parts: Vec<_> = version_string.split(|c| c == ' ' || c == '.').collect();
+				let parts: Vec<_> = version_string.split([' ', '.']).collect();
 				if parts.len() > 2 && parts[0] == "gnuplot"
 				{
 					if let (Ok(major), Ok(minor)) =

gnuplot/src/options.rs

@@ -78,7 +78,7 @@ pub enum PlotOption<T>
 	BoxWidth(Vec<f64>),
 }
 
-impl<'l> OneWayOwned for PlotOption<&'l str>
+impl OneWayOwned for PlotOption<&str>
 {
 	type Output = PlotOption<String>;
 	fn to_one_way_owned(&self) -> Self::Output
@@ -258,7 +258,7 @@ pub enum LabelOption<T>
 	MarkerSize(f64),
 }
 
-impl<'l> OneWayOwned for LabelOption<&'l str>
+impl OneWayOwned for LabelOption<&str>
 {
 	type Output = LabelOption<String>;
 	fn to_one_way_owned(&self) -> Self::Output
@@ -295,7 +295,7 @@ pub enum TickOption<T>
 	Format(T),
 }
 
-impl<'l> OneWayOwned for TickOption<&'l str>
+impl OneWayOwned for TickOption<&str>
 {
 	type Output = TickOption<String>;
 	fn to_one_way_owned(&self) -> Self::Output
@@ -376,7 +376,7 @@ pub enum LegendOption<T>
 	MaxCols(u32),
 }
 
-impl<'l> OneWayOwned for LegendOption<&'l str>
+impl OneWayOwned for LegendOption<&str>
 {
 	type Output = LegendOption<String>;
 	fn to_one_way_owned(&self) -> Self::Output
@@ -433,7 +433,7 @@ pub enum PaletteType<T>
 	Custom(T),
 }
 
-impl<'l> OneWayOwned for PaletteType<&'l [(f32, f32, f32, f32)]>
+impl OneWayOwned for PaletteType<&[(f32, f32, f32, f32)]>
 {
 	type Output = PaletteType<Vec<(f32, f32, f32, f32)>>;
 	fn to_one_way_owned(&self) -> Self::Output
@@ -472,9 +472,9 @@ impl PaletteType<Vec<(f32, f32, f32, f32)>>
 			}
 			Formula(r, g, b) =>
 			{
-				assert!(r >= -36 && r <= 36, "Invalid r formula!");
-				assert!(g >= -36 && g <= 36, "Invalid g formula!");
-				assert!(b >= -36 && b <= 36, "Invalid b formula!");
+				assert!((-36..=36).contains(&r), "Invalid r formula!");
+				assert!((-36..=36).contains(&g), "Invalid g formula!");
+				assert!((-36..=36).contains(&b), "Invalid b formula!");
 				writeln!(w, "set palette rgbformulae {},{},{}", r, g, b);
 			}
 			CubeHelix(start, rev, sat, gamma) =>

gnuplot/src/util.rs

@@ -161,7 +161,7 @@ pub(crate) trait OneWayOwned
 	fn to_one_way_owned(&self) -> Self::Output;
 }
 
-impl<'l, T: OneWayOwned> OneWayOwned for &'l [T]
+impl<T: OneWayOwned> OneWayOwned for &[T]
 {
 	type Output = Vec<<T as OneWayOwned>::Output>;
 	fn to_one_way_owned(&self) -> Self::Output