Fix Clippy warnings

src/bin/03.rs

@@ -103,9 +103,9 @@ impl Item {
 
 impl From<char> for Item {
  fn from(c: char) -> Self {
- if ('a'..='z').contains(&c) {
+ if c.is_ascii_lowercase() {
  Item((c as u8) - b'a' + 1)
- } else if ('A'..='Z').contains(&c) {
+ } else if c.is_ascii_uppercase() {
  Item((c as u8) - b'A' + 27)
  } else {
  panic!("unexpected char '{}'", c)

src/bin/22.rs

@@ -100,10 +100,10 @@ fn map_point((a1, _a2): (Point, Point), (b1, b2): (Point, Point), p: Point) -> P
  let b_dx = (b2.x - b1.x).signum();
  let b_dy = (b2.y - b1.y).signum();
 
- return Point {
+ Point {
  x: b1.x + d * b_dx,
  y: b1.y + d * b_dy,
- };
+ }
 }
 
 #[derive(Clone, Copy)]
@@ -234,10 +234,7 @@ fn example_wrap_definitions() -> Vec<WrapDefinition> {
  Boundary::bottom(8, 12, len),
  Boundary::bottom(0, 8, len).reverse(),
  ),
- WrapDefinition::new(
- Boundary::top(4, 4, len),
- Boundary::left(8, 0, len),
- ),
+ WrapDefinition::new(Boundary::top(4, 4, len), Boundary::left(8, 0, len)),
  ]
 }
 
@@ -294,7 +291,7 @@ impl WrapStrategy {
  let (dx, dy) = facing.deltas();
  p = p.towards(dx, dy);
  }
- return (p, facing);
+ (p, facing)
  }
  WrapStrategy::Complex(wraps) => {
  for wrap in wraps {
@@ -390,7 +387,7 @@ impl<'a> MonkeyMap<'a> {
  mut p: Point,
  mut facing: Facing,
  wrap_strategy: &WrapStrategy,
-  ) -> Option<(Point, Facing)> {
+ ) -> Option<(Point, Facing)> {
  let (dx, dy) = facing.deltas();
 
  p = p.towards(dx, dy);

src/bin/scaffold.rs

@@ -8,7 +8,7 @@ use std::{
  process,
 };
 
-const MODULE_TEMPLATE: &str = r###"pub fn part_one(input: &str) -> Option<u32> {
+const MODULE_TEMPLATE: &str = r#"pub fn part_one(input: &str) -> Option<u32> {
  None
 }
 
@@ -38,7 +38,7 @@ mod tests {
  assert_eq!(part_two(&input), None);
  }
 }
-"###;
+"#;
 
 fn parse_args() -> Result<u8, pico_args::Error> {
  let mut args = pico_args::Arguments::from_env();