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use {
serde::de,
std::fmt,
};
pub type Result<T> = std::result::Result<T, Error>;
#[derive(Debug, Clone, PartialEq)]
pub enum ErrorCode {
Eof,
ExpectedBoolean,
ExpectedInteger,
ExpectedI8,
ExpectedI16,
ExpectedI32,
ExpectedI64,
ExpectedU8,
ExpectedU16,
ExpectedU32,
ExpectedU64,
ExpectedF32,
ExpectedF64,
ExpectedPositiveInteger,
ExpectedString,
ExpectedNull,
ExpectedArray,
ExpectedArrayComma,
ExpectedArrayEnd,
ExpectedMap,
ExpectedMapColon,
ExpectedMapComma,
ExpectedMapEnd,
ExpectedEnum,
ExpectedSingleChar,
InvalidEscapeSequence,
TrailingCharacters,
UnexpectedChar,
}
#[derive(Clone, Debug, PartialEq)]
pub enum Error {
Syntax {
line: usize,
col: usize,
code: ErrorCode,
at: String,
},
Serde {
line: usize,
col: usize,
message: String,
},
RawSerde(String),
}
impl de::Error for Error {
fn custom<T: fmt::Display>(msg: T) -> Self {
Error::RawSerde(msg.to_string())
}
}
impl fmt::Display for Error {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
match self {
Self::Syntax { line, col, code, at } => {
write!(formatter, "{:?} at {}:{} at {:?}", code, line, col, at)
}
Self::Serde { line, col, message } => {
write!(formatter, "{:?} near {}:{}", message, line, col)
}
Self::RawSerde(msg) => {
write!(formatter, "error message: {:?}", msg)
}
}
}
}
impl std::error::Error for Error {}