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75 lines
1.4 KiB
75 lines
1.4 KiB
//! Config parsing error
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use super::*;
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use std::{
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io,
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path::PathBuf,
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};
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#[derive(Debug)]
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pub enum Error {
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IO(io::Error),
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Syntax(sexp::Error),
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NotFound(PathBuf),
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InvalidUtf8,
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InvalidSexp,
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Unknown,
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}
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impl std::error::Error for Error
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{
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fn source(&self) -> Option<&(dyn std::error::Error + 'static)>
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{
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Some(match &self {
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Self::IO(io) => io,
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Self::Syntax(sy) => sy,
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_ => return None,
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})
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}
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}
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impl std::fmt::Display for Error
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{
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
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{
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match self {
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Self::IO(io) => write!(f, "i/o error: {}", io),
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Self::Syntax(sy) => write!(f, "s-expression syntax error: {}", sy),
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Self::NotFound(path) => write!(f, "File not found: {:?}", path),
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Self::InvalidUtf8 => write!(f, "Invalid UTF8 decoded string or some such"),
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Self::InvalidSexp => write!(f, "Invalid s-expression"),
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_ => write!(f, "unknown error")
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}
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}
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}
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impl From<io::Error> for Error
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{
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fn from(from: io::Error) -> Self
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{
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Self::IO(from)
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}
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}
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impl From<sexp::Error> for Error
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{
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fn from(from: sexp::Error) -> Self
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{
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Self::Syntax(from)
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}
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}
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impl From<Box<sexp::Error>> for Error
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{
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fn from(from: Box<sexp::Error>) -> Self
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{
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Self::Syntax(*from)
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}
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}
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impl From<std::str::Utf8Error> for Error
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{
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fn from(from: std::str::Utf8Error) -> Self
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{
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Self::InvalidUtf8
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}
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}
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