119 lines
2.4 KiB
Rust
119 lines
2.4 KiB
Rust
use num_bigint::BigInt;
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use std::convert::From;
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use std::io;
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#[derive(Debug)]
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pub enum Error {
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Io(io::Error),
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Message(String),
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NumberOutOfRange(BigInt),
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MissingCloseDelimiter,
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MissingItem,
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Expected(ExpectedKind),
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}
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#[derive(Debug, PartialEq)]
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pub enum ExpectedKind {
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Boolean,
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Float,
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Double,
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SignedIntegerI128,
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SignedIntegerU128,
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SignedInteger,
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String,
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ByteString,
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Symbol,
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Record,
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SimpleRecord(String),
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Sequence,
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Set,
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Dictionary,
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Embedded,
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Annotation,
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}
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#[derive(Debug)]
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pub enum ReadError {
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UnsupportedFormat,
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Io(io::Error),
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}
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impl From<ExpectedKind> for Error {
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fn from(e: ExpectedKind) -> Self {
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Error::Expected(e)
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}
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}
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impl From<io::Error> for Error {
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fn from(e: io::Error) -> Self {
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Error::Io(e)
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}
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}
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impl From<ReadError> for Error {
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fn from(e: ReadError) -> Self {
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match e {
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ReadError::UnsupportedFormat => Error::Message(format!("{}", e)),
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ReadError::Io(i) => Error::Io(i),
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}
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}
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}
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impl From<ReadError> for io::Error {
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fn from(e: ReadError) -> Self {
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match e {
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ReadError::UnsupportedFormat => Error::from(e).into(),
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ReadError::Io(i) => i,
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}
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}
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}
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impl From<io::Error> for ReadError {
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fn from(e: io::Error) -> Self {
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ReadError::Io(e)
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}
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}
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impl std::fmt::Display for ReadError {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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match self {
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ReadError::UnsupportedFormat => write!(f, "Unsupported Preserves format"),
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ReadError::Io(i) => write!(f, "{}", i),
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}
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}
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}
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impl From<Error> for io::Error {
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fn from(e: Error) -> Self {
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match e {
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Error::Io(ioe) => ioe,
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Error::Message(str) => io::Error::new(io::ErrorKind::Other, str),
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_ => io::Error::new(io::ErrorKind::Other, e),
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}
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}
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}
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impl std::error::Error for ExpectedKind {}
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impl std::error::Error for ReadError {}
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impl std::error::Error for Error {}
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impl std::fmt::Display for Error {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "{:?}", self)
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}
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}
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impl std::fmt::Display for ExpectedKind {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "{:?}", self)
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}
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}
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pub fn io_eof() -> io::Error {
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io::Error::new(io::ErrorKind::UnexpectedEof, "EOF")
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}
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