src/tools/clippy/tests/ui/fallible_impl_from.stderr

   1 error: consider implementing `TryFrom` instead
   2   --> $DIR/fallible_impl_from.rs:5:1
   3    |
   4 LL | / impl From<String> for Foo {
   5 LL | |     fn from(s: String) -> Self {
   6 LL | |         Foo(s.parse().unwrap())
   7 LL | |     }
   8 LL | | }
   9    | |_^
  10    |
  11 note: the lint level is defined here
  12   --> $DIR/fallible_impl_from.rs:1:9
  13    |
  14 LL | #![deny(clippy::fallible_impl_from)]
  15    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
  16    = help: `From` is intended for infallible conversions only. Use `TryFrom` if there's a possibility for the conversion to fail
  17 note: potential failure(s)
  18   --> $DIR/fallible_impl_from.rs:7:13
  19    |
  20 LL |         Foo(s.parse().unwrap())
  21    |             ^^^^^^^^^^^^^^^^^^
  22
  23 error: consider implementing `TryFrom` instead
  24   --> $DIR/fallible_impl_from.rs:26:1
  25    |
  26 LL | / impl From<usize> for Invalid {
  27 LL | |     fn from(i: usize) -> Invalid {
  28 LL | |         if i != 42 {
  29 LL | |             panic!();
  30 ...  |
  31 LL | |     }
  32 LL | | }
  33    | |_^
  34    |
  35    = help: `From` is intended for infallible conversions only. Use `TryFrom` if there's a possibility for the conversion to fail
  36 note: potential failure(s)
  37   --> $DIR/fallible_impl_from.rs:29:13
  38    |
  39 LL |             panic!();
  40    |             ^^^^^^^^
  41    = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
  42
  43 error: consider implementing `TryFrom` instead
  44   --> $DIR/fallible_impl_from.rs:35:1
  45    |
  46 LL | / impl From<Option<String>> for Invalid {
  47 LL | |     fn from(s: Option<String>) -> Invalid {
  48 LL | |         let s = s.unwrap();
  49 LL | |         if !s.is_empty() {
  50 ...  |
  51 LL | |     }
  52 LL | | }
  53    | |_^
  54    |
  55    = help: `From` is intended for infallible conversions only. Use `TryFrom` if there's a possibility for the conversion to fail
  56 note: potential failure(s)
  57   --> $DIR/fallible_impl_from.rs:37:17
  58    |
  59 LL |         let s = s.unwrap();
  60    |                 ^^^^^^^^^^
  61 LL |         if !s.is_empty() {
  62 LL |             panic!("42");
  63    |             ^^^^^^^^^^^^
  64 LL |         } else if s.parse::<u32>().unwrap() != 42 {
  65    |                   ^^^^^^^^^^^^^^^^^^^^^^^^^
  66 LL |             panic!("{:?}", s);
  67    |             ^^^^^^^^^^^^^^^^^
  68    = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
  69
  70 error: consider implementing `TryFrom` instead
  71   --> $DIR/fallible_impl_from.rs:53:1
  72    |
  73 LL | / impl<'a> From<&'a mut <Box<u32> as ProjStrTrait>::ProjString> for Invalid {
  74 LL | |     fn from(s: &'a mut <Box<u32> as ProjStrTrait>::ProjString) -> Invalid {
  75 LL | |         if s.parse::<u32>().ok().unwrap() != 42 {
  76 LL | |             panic!("{:?}", s);
  77 ...  |
  78 LL | |     }
  79 LL | | }
  80    | |_^
  81    |
  82    = help: `From` is intended for infallible conversions only. Use `TryFrom` if there's a possibility for the conversion to fail
  83 note: potential failure(s)
  84   --> $DIR/fallible_impl_from.rs:55:12
  85    |
  86 LL |         if s.parse::<u32>().ok().unwrap() != 42 {
  87    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  88 LL |             panic!("{:?}", s);
  89    |             ^^^^^^^^^^^^^^^^^
  90    = note: this error originates in the macro `$crate::panic::panic_2021` (in Nightly builds, run with -Z macro-backtrace for more info)
  91
  92 error: aborting due to 4 previous errors
  93