rgwml/
error.rs

1use std::fmt;
2
3#[derive(Debug, Clone, PartialEq, Eq)]
4pub enum Error {
5    Schema(String),
6    ColumnNotFound(String),
7    TypeMismatch { expected: String, actual: String },
8    InvalidSelection(String),
9    InvalidArgument(String),
10    Unsupported(String),
11    NotImplemented(&'static str),
12    Io(String),
13    Parse(String),
14}
15
16impl fmt::Display for Error {
17    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
18        match self {
19            Self::Schema(message) => write!(f, "schema error: {message}"),
20            Self::ColumnNotFound(name) => write!(f, "column not found: {name}"),
21            Self::TypeMismatch { expected, actual } => {
22                write!(f, "type mismatch: expected {expected}, got {actual}")
23            }
24            Self::InvalidSelection(message) => write!(f, "invalid selection: {message}"),
25            Self::InvalidArgument(message) => write!(f, "invalid argument: {message}"),
26            Self::Unsupported(message) => write!(f, "unsupported: {message}"),
27            Self::NotImplemented(message) => write!(f, "not implemented: {message}"),
28            Self::Io(message) => write!(f, "io error: {message}"),
29            Self::Parse(message) => write!(f, "parse error: {message}"),
30        }
31    }
32}
33
34impl std::error::Error for Error {}
35
36impl From<std::io::Error> for Error {
37    fn from(value: std::io::Error) -> Self {
38        Self::Io(value.to_string())
39    }
40}
41
42impl From<csv::Error> for Error {
43    fn from(value: csv::Error) -> Self {
44        Self::Io(value.to_string())
45    }
46}
47
48pub type Result<T> = std::result::Result<T, Error>;
rgwml/error.rs

rgwml/
error.rs
