src/tools/clippy/tests/ui/checked_conversions.fixed

   1 // run-rustfix
   2
   3 #![allow(
   4     clippy::cast_lossless,
   5     // Int::max_value will be deprecated in the future
   6     deprecated,
   7 )]
   8 #![warn(clippy::checked_conversions)]
   9
  10 // Positive tests
  11
  12 // Signed to unsigned
  13
  14 pub fn i64_to_u32(value: i64) {
  15     let _ = u32::try_from(value).is_ok();
  16     let _ = u32::try_from(value).is_ok();
  17 }
  18
  19 pub fn i64_to_u16(value: i64) {
  20     let _ = u16::try_from(value).is_ok();
  21     let _ = u16::try_from(value).is_ok();
  22 }
  23
  24 pub fn isize_to_u8(value: isize) {
  25     let _ = u8::try_from(value).is_ok();
  26     let _ = u8::try_from(value).is_ok();
  27 }
  28
  29 // Signed to signed
  30
  31 pub fn i64_to_i32(value: i64) {
  32     let _ = i32::try_from(value).is_ok();
  33     let _ = i32::try_from(value).is_ok();
  34 }
  35
  36 pub fn i64_to_i16(value: i64) {
  37     let _ = i16::try_from(value).is_ok();
  38     let _ = i16::try_from(value).is_ok();
  39 }
  40
  41 // Unsigned to X
  42
  43 pub fn u32_to_i32(value: u32) {
  44     let _ = i32::try_from(value).is_ok();
  45     let _ = i32::try_from(value).is_ok();
  46 }
  47
  48 pub fn usize_to_isize(value: usize) {
  49     let _ = isize::try_from(value).is_ok() && value as i32 == 5;
  50     let _ = isize::try_from(value).is_ok() && value as i32 == 5;
  51 }
  52
  53 pub fn u32_to_u16(value: u32) {
  54     let _ = u16::try_from(value).is_ok() && value as i32 == 5;
  55     let _ = u16::try_from(value).is_ok() && value as i32 == 5;
  56 }
  57
  58 // Negative tests
  59
  60 pub fn no_i64_to_i32(value: i64) {
  61     let _ = value <= (i32::max_value() as i64) && value >= 0;
  62     let _ = value <= (i32::MAX as i64) && value >= 0;
  63 }
  64
  65 pub fn no_isize_to_u8(value: isize) {
  66     let _ = value <= (u8::max_value() as isize) && value >= (u8::min_value() as isize);
  67     let _ = value <= (u8::MAX as isize) && value >= (u8::MIN as isize);
  68 }
  69
  70 pub fn i8_to_u8(value: i8) {
  71     let _ = value >= 0;
  72 }
  73
  74 // Do not lint
  75 pub const fn issue_8898(i: u32) -> bool {
  76     i <= i32::MAX as u32
  77 }
  78
  79 fn main() {}