src/tools/clippy/tests/ui/from_str_radix_10.rs

   1 #![warn(clippy::from_str_radix_10)]
   2
   3 mod some_mod {
   4     // fake function that shouldn't trigger the lint
   5     pub fn from_str_radix(_: &str, _: u32) -> Result<(), std::num::ParseIntError> {
   6         unimplemented!()
   7     }
   8 }
   9
  10 // fake function that shouldn't trigger the lint
  11 fn from_str_radix(_: &str, _: u32) -> Result<(), std::num::ParseIntError> {
  12     unimplemented!()
  13 }
  14
  15 // to test parenthesis addition
  16 struct Test;
  17
  18 impl std::ops::Add<Test> for Test {
  19     type Output = &'static str;
  20
  21     fn add(self, _: Self) -> Self::Output {
  22         "304"
  23     }
  24 }
  25
  26 fn main() -> Result<(), Box<dyn std::error::Error>> {
  27     // all of these should trigger the lint
  28     u32::from_str_radix("30", 10)?;
  29     i64::from_str_radix("24", 10)?;
  30     isize::from_str_radix("100", 10)?;
  31     u8::from_str_radix("7", 10)?;
  32     u16::from_str_radix(&("10".to_owned() + "5"), 10)?;
  33     i128::from_str_radix(Test + Test, 10)?;
  34
  35     let string = "300";
  36     i32::from_str_radix(string, 10)?;
  37
  38     let stringier = "400".to_string();
  39     i32::from_str_radix(&stringier, 10)?;
  40
  41     // none of these should trigger the lint
  42     u16::from_str_radix("20", 3)?;
  43     i32::from_str_radix("45", 12)?;
  44     usize::from_str_radix("10", 16)?;
  45     i128::from_str_radix("10", 13)?;
  46     some_mod::from_str_radix("50", 10)?;
  47     some_mod::from_str_radix("50", 6)?;
  48     from_str_radix("50", 10)?;
  49     from_str_radix("50", 6)?;
  50
  51     Ok(())
  52 }