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//! Error-related types.
use std::fmt::{Display, Formatter};
use thiserror::Error;
/// A validation error.
///
/// This error can be returned during validation of a value, e.g., a tag, atom, etc.
#[derive(Clone, Debug, Eq, Error, Hash, Ord, PartialEq, PartialOrd)]
pub struct ValidationError {
kind: ValidationErrorKind,
}
impl Display for ValidationError {
fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
write!(f, "Validation failed: {}", self.kind)
}
}
#[derive(Clone, Debug, Eq, Error, Hash, Ord, PartialEq, PartialOrd)]
pub(crate) enum ValidationErrorKind {
#[error("Must not be empty")]
Empty,
#[error("Must have at least {min} elements")]
NotEnough { min: usize },
#[error("Invalid value")]
Invalid,
#[error("Invalid byte b'\\x{byte:02x}' at index {at}")]
InvalidByteAt { byte: u8, at: usize },
}
impl ValidationError {
pub(crate) fn new(kind: ValidationErrorKind) -> Self {
Self { kind }
}
}
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