135 lines
2.8 KiB
Rust
135 lines
2.8 KiB
Rust
use num::bigint::BigInt;
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use std::convert::From;
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use crate::value::IOValue;
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#[derive(Debug)]
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pub enum Error {
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Io(std::io::Error),
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Message(String),
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InvalidUnicodeScalar(u32),
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NumberOutOfRange(BigInt),
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CannotDeserializeAny,
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MissingCloseDelimiter,
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MissingItem,
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Expected(ExpectedKind, Received),
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StreamingSerializationUnsupported,
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}
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#[derive(Debug)]
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pub enum Received {
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ReceivedSomethingElse,
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ReceivedRecordWithLabel(String),
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ReceivedOtherValue(IOValue),
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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(Option<usize>),
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SimpleRecord(String, Option<usize>),
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Sequence,
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Set,
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Dictionary,
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Embedded,
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SequenceOrSet, // Because of hacking up serde's data model: see open_sequence_or_set etc.
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Option,
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UnicodeScalar,
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}
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impl From<std::io::Error> for Error {
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fn from(e: std::io::Error) -> Self {
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Error::Io(e)
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}
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}
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impl From<Error> for std::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) => std::io::Error::new(std::io::ErrorKind::Other, str),
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_ => std::io::Error::new(std::io::ErrorKind::Other, e.to_string()),
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}
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}
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}
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impl serde::ser::Error for Error {
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fn custom<T: std::fmt::Display>(msg: T) -> Self {
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Self::Message(msg.to_string())
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}
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}
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impl serde::de::Error for Error {
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fn custom<T: std::fmt::Display>(msg: T) -> Self {
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Self::Message(msg.to_string())
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}
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}
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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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//---------------------------------------------------------------------------
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pub fn is_io_error(e: &Error) -> bool {
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matches!(e, Error::Io(_))
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}
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pub fn eof() -> Error {
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Error::Io(io_eof())
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}
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pub fn is_eof_error(e: &Error) -> bool {
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if let Error::Io(ioe) = e {
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is_eof_io_error(ioe)
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} else {
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false
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}
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}
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pub fn syntax_error(s: &str) -> Error {
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Error::Io(io_syntax_error(s))
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}
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pub fn is_syntax_error(e: &Error) -> bool {
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if let Error::Io(ioe) = e {
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is_syntax_io_error(ioe)
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} else {
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false
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}
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}
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//---------------------------------------------------------------------------
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pub fn io_eof() -> std::io::Error {
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std::io::Error::new(std::io::ErrorKind::UnexpectedEof, "EOF")
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}
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pub fn is_eof_io_error(e: &std::io::Error) -> bool {
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matches!(e.kind(), std::io::ErrorKind::UnexpectedEof)
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}
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pub fn io_syntax_error(s: &str) -> std::io::Error {
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std::io::Error::new(std::io::ErrorKind::InvalidData, s)
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}
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pub fn is_syntax_io_error(e: &std::io::Error) -> bool {
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matches!(e.kind(), std::io::ErrorKind::InvalidData)
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}
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