Use variables directly in format expressions (Clippy lint)

src/game.rs

@@ -20,7 +20,7 @@ pub fn get_count_for_value(value: Value) -> u32 {
         2 | 3 | 4 => 2,
         5 => 1,
         _ => {
-            panic!("Unexpected value: {}", value);
+            panic!("Unexpected value: {value}");
         }
     }
 }
@@ -78,11 +78,11 @@ impl CardCounts {
 impl fmt::Display for CardCounts {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         for &color in COLORS.iter() {
-            write!(f, "{}: ", color)?;
+            write!(f, "{color}: ")?;
             for &value in VALUES.iter() {
                 let count = self.get_count(&Card::new(color, value));
                 let total = get_count_for_value(value);
-                write!(f, "{}/{} {}s", count, total, value)?;
+                write!(f, "{count}/{total} {value}s")?;
                 if value != FINAL_VALUE {
                     f.write_str(", ")?;
                 }
@@ -188,10 +188,10 @@ impl fmt::Display for Hinted {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         match *self {
             Hinted::Color(color) => {
-                write!(f, "{}", color)
+                write!(f, "{color}")
             }
             Hinted::Value(value) => {
-                write!(f, "{}", value)
+                write!(f, "{value}")
             }
         }
     }
@@ -537,9 +537,9 @@ impl fmt::Display for GameState {
         f.write_str("======\n")?;
         for player in self.board.get_players() {
             let hand = &self.hands.get(&player).unwrap();
-            write!(f, "player {}:", player)?;
+            write!(f, "player {player}:")?;
             for card in hand.iter() {
-                write!(f, "    {}", card)?;
+                write!(f, "    {card}")?;
             }
             f.write_str("\n")?;
         }

src/helpers.rs

@@ -268,7 +268,7 @@ impl fmt::Display for SimpleCardInfo {
         //}
         for &value in &VALUES {
             if self.value_info.is_possible(value) {
-                write!(string, "{}", value).unwrap();
+                write!(string, "{value}").unwrap();
             }
         }
         f.pad(&string)
@@ -304,7 +304,7 @@ impl CardPossibilityTable {
             let weight = self
                 .possible
                 .get_mut(card)
-                .unwrap_or_else(|| panic!("Decrementing weight for impossible card: {}", card));
+                .unwrap_or_else(|| panic!("Decrementing weight for impossible card: {card}"));
             *weight -= 1;
             *weight == 0
         };
@@ -401,7 +401,7 @@ impl CardInfo for CardPossibilityTable {
 impl fmt::Display for CardPossibilityTable {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         for (card, weight) in &self.possible {
-            write!(f, "{} {}, ", weight, card)?;
+            write!(f, "{weight} {card}, ")?;
         }
         Ok(())
     }

src/main.rs

@@ -34,7 +34,7 @@ impl log::Log for SimpleLogger {
 }
 
 fn print_usage(program: &str, opts: Options) {
-    print!("{}", opts.usage(&format!("Usage: {} [options]", program)));
+    print!("{}", opts.usage(&format!("Usage: {program} [options]")));
 }
 
 fn main() {
@@ -115,7 +115,7 @@ fn main() {
         "error" => log::LogLevelFilter::Error,
         _ => {
             print_usage(&program, opts);
-            panic!("Unexpected log level argument {}", log_level_str);
+            panic!("Unexpected log level argument {log_level_str}");
         }
     };
 
@@ -162,7 +162,7 @@ fn sim_games(
         4 => 4,
         5 => 4,
         _ => {
-            panic!("There should be 2 to 5 players, not {}", n_players);
+            panic!("There should be 2 to 5 players, not {n_players}");
         }
     };
 
@@ -185,7 +185,7 @@ fn sim_games(
         "info" => Box::new(strategies::information::InformationStrategyConfig::new())
             as Box<dyn strategy::GameStrategyConfig + Sync>,
         _ => {
-            panic!("Unexpected strategy argument {}", strategy_str);
+            panic!("Unexpected strategy argument {strategy_str}");
         }
     };
     simulator::simulate(
@@ -206,13 +206,12 @@ fn get_results_table() -> String {
     let n_threads = 8;
 
     let intro = format!(
-        "On the first {} seeds, we have these scores and win rates (average ± standard error):\n\n",
-        n_trials
+        "On the first {n_trials} seeds, we have these scores and win rates (average ± standard error):\n\n"
     );
-    let format_name = |x| format!(" {:7} ", x);
-    let format_players = |x| format!("   {}p    ", x);
-    let format_percent = |x, stderr| format!(" {:05.2} ± {:.2} % ", x, stderr);
-    let format_score = |x, stderr| format!(" {:07.4} ± {:.4} ", x, stderr);
+    let format_name = |x| format!(" {x:7} ");
+    let format_players = |x| format!("   {x}p    ");
+    let format_percent = |x, stderr| format!(" {x:05.2} ± {stderr:.2} % ");
+    let format_score = |x, stderr| format!(" {x:07.4} ± {stderr:.4} ");
     let space = String::from("         ");
     let dashes = String::from("---------");
     let dashes_long = String::from("------------------");
@@ -288,7 +287,7 @@ time cargo run --release -- --write-results-table
     let readme_init = {
         let parts = readme_contents.splitn(2, separator).collect::<Vec<_>>();
         if parts.len() != 2 {
-            panic!("{} has been modified in the Results section!", readme);
+            panic!("{readme} has been modified in the Results section!");
         }
         parts[0]
     };