46 lines
1.3 KiB
Rust
46 lines
1.3 KiB
Rust
use std::fmt::{self, Display};
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#[cfg(feature = "serde")]
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use serde::{de, ser};
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pub type Result<T> = std::result::Result<T, Error>;
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// This is a bare-bones implementation. A real library would provide additional
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// information in its error type, for example the line and column at which the
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// error occurred, the byte offset into the input, or the current key being
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// processed.
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#[derive(Clone, Debug, PartialEq)]
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pub enum Error {
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Message(String),
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Eof,
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InvalidInteger,
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InvalidBoolean(String),
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}
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#[cfg(feature = "serde")]
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impl ser::Error for Error {
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fn custom<T: Display>(msg: T) -> Self {
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Error::Message(msg.to_string())
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}
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}
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#[cfg(feature = "serde")]
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impl de::Error for Error {
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fn custom<T: Display>(msg: T) -> Self {
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Error::Message(msg.to_string())
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}
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}
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impl Display for Error {
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fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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match self {
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Error::Message(msg) => formatter.write_str(msg),
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Error::Eof => formatter.write_str("unexpected end of input"),
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Error::InvalidInteger => formatter.write_str("invalid integer given"),
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Error::InvalidBoolean(_) => formatter.write_str("invalid boolean given"),
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}
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}
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}
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impl std::error::Error for Error {}
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