| 1 | //! Conversion range error |
| 2 | |
| 3 | use core::fmt; |
| 4 | |
| 5 | use crate::error; |
| 6 | |
| 7 | /// An error type indicating that a conversion failed because the target type could not store the |
| 8 | /// initial value. |
| 9 | #[derive (Debug, Clone, Copy, PartialEq, Eq)] |
| 10 | pub struct ConversionRange; |
| 11 | |
| 12 | impl fmt::Display for ConversionRange { |
| 13 | fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { |
| 14 | f.write_str(data:"Source value is out of range for the target type" ) |
| 15 | } |
| 16 | } |
| 17 | |
| 18 | #[cfg (feature = "std" )] |
| 19 | #[allow (clippy::std_instead_of_core)] |
| 20 | impl std::error::Error for ConversionRange {} |
| 21 | |
| 22 | impl From<ConversionRange> for crate::Error { |
| 23 | fn from(err: ConversionRange) -> Self { |
| 24 | Self::ConversionRange(err) |
| 25 | } |
| 26 | } |
| 27 | |
| 28 | impl TryFrom<crate::Error> for ConversionRange { |
| 29 | type Error = error::DifferentVariant; |
| 30 | |
| 31 | fn try_from(err: crate::Error) -> Result<Self, Self::Error> { |
| 32 | match err { |
| 33 | crate::Error::ConversionRange(err: ConversionRange) => Ok(err), |
| 34 | _ => Err(error::DifferentVariant), |
| 35 | } |
| 36 | } |
| 37 | } |
| 38 | |