style: simplify string interpolation

src/export/asciidoc.rs

@@ -32,7 +32,7 @@ impl MarkupExporter for AsciidocExporter {
     }
 
     fn command(&self, cmd: &str) -> String {
-        format!("`{}`", cmd)
+        format!("`{cmd}`")
     }
 }
 
@@ -71,8 +71,7 @@ fn test_asciidoc_exporter_table_header() {
 #[cfg(test)]
 fn cfg_test_table_header(unit_short_name: &str) -> String {
     format!(
-        "[cols=\"<,>,>,>,>\"]\n|===\n| Command \n| Mean [{unit}] \n| Min [{unit}] \n| Max [{unit}] \n| Relative \n",
-        unit = unit_short_name
+        "[cols=\"<,>,>,>,>\"]\n|===\n| Command \n| Mean [{unit_short_name}] \n| Min [{unit_short_name}] \n| Max [{unit_short_name}] \n| Relative \n"
     )
 }
 

src/export/csv.rs

@@ -31,7 +31,7 @@ impl Exporter for CsvExporter {
             .collect();
             if let Some(res) = results.first() {
                 for param_name in res.parameters.keys() {
-                    headers.push(Cow::Owned(format!("parameter_{}", param_name).into_bytes()));
+                    headers.push(Cow::Owned(format!("parameter_{param_name}").into_bytes()));
                 }
             }
             writer.write_record(headers)?;

src/export/markdown.rs

@@ -24,7 +24,7 @@ impl MarkupExporter for MarkdownExporter {
     }
 
     fn command(&self, cmd: &str) -> String {
-        format!("`{}`", cmd)
+        format!("`{cmd}`")
     }
 }
 
@@ -53,8 +53,7 @@ fn test_markdown_formatter_table_divider() {
 #[cfg(test)]
 fn cfg_test_table_header(unit_short_name: String) -> String {
     format!(
-        "| Command | Mean [{unit}] | Min [{unit}] | Max [{unit}] | Relative |\n|:---|---:|---:|---:|---:|\n",
-        unit = unit_short_name
+        "| Command | Mean [{unit_short_name}] | Min [{unit_short_name}] | Max [{unit_short_name}] | Relative |\n|:---|---:|---:|---:|---:|\n"
     )
 }
 

src/export/markup.rs

@@ -32,9 +32,9 @@ pub trait MarkupExporter {
         // emit table header data
         table.push_str(&self.table_row(&[
             "Command",
-            &format!("Mean {}", notation),
-            &format!("Min {}", notation),
-            &format!("Max {}", notation),
+            &format!("Mean {notation}"),
+            &format!("Min {notation}"),
+            &format!("Max {notation}"),
             "Relative",
         ]));
 
@@ -59,7 +59,7 @@ pub trait MarkupExporter {
             let rel_stddev_str = if entry.is_fastest {
                 "".into()
             } else if let Some(stddev) = entry.relative_speed_stddev {
-                format!(" ± {:.2}", stddev)
+                format!(" ± {stddev:.2}")
             } else {
                 "".into()
             };
@@ -67,10 +67,10 @@ pub trait MarkupExporter {
             // prepare table row entries
             table.push_str(&self.table_row(&[
                 &self.command(&cmd_str),
-                &format!("{}{}", mean_str, stddev_str),
+                &format!("{mean_str}{stddev_str}"),
                 &min_str,
                 &max_str,
-                &format!("{}{}", rel_str, rel_stddev_str),
+                &format!("{rel_str}{rel_stddev_str}"),
             ]))
         }
 

src/export/mod.rs

@@ -108,7 +108,7 @@ impl ExportManager {
                 ExportTarget::Stdout
             } else {
                 let _ = File::create(filename)
-                    .with_context(|| format!("Could not create export file '{}'", filename))?;
+                    .with_context(|| format!("Could not create export file '{filename}'"))?;
                 ExportTarget::File(filename.to_string())
             },
         });
@@ -153,5 +153,5 @@ impl ExportManager {
 fn write_to_file(filename: &str, content: &[u8]) -> Result<()> {
     let mut file = OpenOptions::new().write(true).open(filename)?;
     file.write_all(content)
-        .with_context(|| format!("Failed to export results to '{}'", filename))
+        .with_context(|| format!("Failed to export results to '{filename}'"))
 }

src/export/orgmode.rs

@@ -18,7 +18,7 @@ impl MarkupExporter for OrgmodeExporter {
     }
 
     fn command(&self, cmd: &str) -> String {
-        format!("={}=", cmd)
+        format!("={cmd}=")
     }
 }
 
@@ -58,8 +58,7 @@ fn test_orgmode_formatter_table_line() {
 #[cfg(test)]
 fn cfg_test_table_header(unit_short_name: String) -> String {
     format!(
-        "| Command  |  Mean [{unit}] |  Min [{unit}] |  Max [{unit}] |  Relative |\n|--+--+--+--+--|\n",
-        unit = unit_short_name
+        "| Command  |  Mean [{unit_short_name}] |  Min [{unit_short_name}] |  Max [{unit_short_name}] |  Relative |\n|--+--+--+--+--|\n"
     )
 }