85 lines
1.9 KiB
Rust
85 lines
1.9 KiB
Rust
use failure::{Backtrace, Context, Fail};
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use std::fmt;
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use std::fmt::Display;
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use std::io::Error as IOError;
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use std::path::PathBuf;
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// -----------------------------------------------------------------------------
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#[derive(Fail, Debug)]
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pub enum ErrorKind {
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#[fail(display = "IO error")]
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Io,
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#[fail(display = "File error: {:?}", _0)]
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File(PathBuf),
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#[fail(display = "Include error")]
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Include,
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#[fail(display = "Parse error: {:?}", _0)]
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Parse(Option<(PathBuf, usize)>),
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#[fail(display = "Preprocess error")]
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Preprocess,
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#[fail(display = "Define argument not found: {}", _0)]
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DefineArgNotFound(String),
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#[fail(display = "Define text not found: {}", _0)]
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DefineTextNotFound(String),
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#[fail(display = "Define not found: {}", _0)]
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DefineNotFound(String),
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}
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// -----------------------------------------------------------------------------
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#[derive(Debug)]
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pub struct Error {
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inner: Context<ErrorKind>,
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}
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impl Fail for Error {
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fn cause(&self) -> Option<&dyn Fail> {
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self.inner.cause()
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}
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fn backtrace(&self) -> Option<&Backtrace> {
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self.inner.backtrace()
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}
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}
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impl Display for Error {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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Display::fmt(&self.inner, f)
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}
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}
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impl Error {
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pub fn new(inner: Context<ErrorKind>) -> Error {
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Error { inner }
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}
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pub fn kind(&self) -> &ErrorKind {
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self.inner.get_context()
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}
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}
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impl From<ErrorKind> for Error {
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fn from(kind: ErrorKind) -> Error {
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Error {
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inner: Context::new(kind),
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}
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}
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}
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impl From<Context<ErrorKind>> for Error {
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fn from(inner: Context<ErrorKind>) -> Error {
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Error { inner }
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}
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}
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// -----------------------------------------------------------------------------
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impl From<IOError> for Error {
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fn from(error: IOError) -> Error {
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Error {
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inner: error.context(ErrorKind::Io),
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}
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}
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}
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