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Diffstat (limited to 'vendor/time/src/error/different_variant.rs')
-rw-r--r-- | vendor/time/src/error/different_variant.rs | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/vendor/time/src/error/different_variant.rs b/vendor/time/src/error/different_variant.rs new file mode 100644 index 000000000..22e21cb0c --- /dev/null +++ b/vendor/time/src/error/different_variant.rs @@ -0,0 +1,34 @@ +//! Different variant error + +use core::fmt; + +/// An error type indicating that a [`TryFrom`](core::convert::TryFrom) call failed because the +/// original value was of a different variant. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub struct DifferentVariant; + +impl fmt::Display for DifferentVariant { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + write!(f, "value was of a different variant than required") + } +} + +#[cfg(feature = "std")] +impl std::error::Error for DifferentVariant {} + +impl From<DifferentVariant> for crate::Error { + fn from(err: DifferentVariant) -> Self { + Self::DifferentVariant(err) + } +} + +impl TryFrom<crate::Error> for DifferentVariant { + type Error = Self; + + fn try_from(err: crate::Error) -> Result<Self, Self::Error> { + match err { + crate::Error::DifferentVariant(err) => Ok(err), + _ => Err(Self), + } + } +} |