anyhow specific lint. Suggest users use bail! macro.

[cowlicks]

Lint explanation

Warn when code has suboptimal usage of anyhow. Specifically tell the user to use the bail! macro instead doing: return Err(anyhow!("...")).

Example code

Bad code

fn foo(x: bool) -> Result<()> {
  if x {
    return Err(anyhow!("x was {x}"));
  }
  Ok(())
}

Good code

fn foo(x: bool) -> Result<()> {
  if x {
    return bail!("x was {x}");
  }
  Ok(())
}

Notes