cargo clippy

src/hosts.rs

@@ -28,17 +28,17 @@ impl Hosts {
  while reader.read_line(&mut line)? != 0 {
  let tr_line = line.trim();
 
- if tr_line.starts_with("#")
+ if tr_line.starts_with('#')
  && tr_line
- .trim_start_matches(&['#', ' '])
+ .trim_start_matches(['#', ' '])
  .starts_with("SECTION")
  {
  let new_section_name = match tr_line.split(' ').last() {
  Some(name) if name != "SECTION" => name,
  _ => continue,
  };
 
- if entries.len() > 0 {
+ if !entries.is_empty() {
  sections.insert(current_section, entries.clone());
  entries.clear();
  }
@@ -51,7 +51,7 @@ impl Hosts {
  line.clear();
  }
 
- if entries.len() > 0 {
+ if !entries.is_empty() {
  sections.insert(current_section, entries);
  }
 
@@ -77,7 +77,7 @@ impl Hosts {
  if let Some(entries) = self.sections.remove(&None) {
  for e in entries.iter() {
  writer.write_all(e.as_bytes())?;
- writer.write_all(&['\n' as u8])?;
+ writer.write_all(&[b'\n'])?;
  }
  }
 
@@ -87,7 +87,7 @@ impl Hosts {
 
  for e in entries.iter() {
  writer.write_all(e.as_bytes())?;
- writer.write_all(&['\n' as u8])?;
+ writer.write_all(&[b'\n'])?;
  }
  }
 

src/main.rs

@@ -39,7 +39,7 @@ fn main() -> Result<(), IoError> {
  }
  };
 
- if container_entries.len() == 0 {
+ if container_entries.is_empty() {
  exit(0);
  }