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use std::fmt::{self, Debug, Display};
/// Errors that can occur when serializing or deserializing TOML.
pub struct Error(Box<ErrorInner>);
pub(crate) enum ErrorInner {
Ser(crate::ser::Error),
De(crate::de::Error),
}
impl Error {
/// Produces a (line, column) pair of the position of the error if
/// available.
///
/// All indexes are 0-based.
pub fn line_col(&self) -> Option<(usize, usize)> {
match &*self.0 {
ErrorInner::Ser(_) => None,
ErrorInner::De(error) => error.line_col(),
}
}
}
impl From<crate::ser::Error> for Error {
fn from(error: crate::ser::Error) -> Self {
Error(Box::new(ErrorInner::Ser(error)))
}
}
impl From<crate::de::Error> for Error {
fn from(error: crate::de::Error) -> Self {
Error(Box::new(ErrorInner::De(error)))
}
}
impl Display for Error {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
match &*self.0 {
ErrorInner::Ser(error) => Display::fmt(error, formatter),
ErrorInner::De(error) => Display::fmt(error, formatter),
}
}
}
impl Debug for Error {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
match &*self.0 {
ErrorInner::Ser(error) => Debug::fmt(error, formatter),
ErrorInner::De(error) => Debug::fmt(error, formatter),
}
}
}
impl std::error::Error for Error {}