target_match/
error.rs

1//! Error type for `target-match`.
2//!
3//! Every fallible entry point returns [`Result`]. The only construction this
4//! crate itself validates is optics/field geometry — coordinate parsing and
5//! domain checks happen in [`skymath`] when the consumer builds an
6//! [`skymath::Equatorial`], and surface as [`skymath::Error`]. Matching and
7//! precession are infallible once inputs are valid values.
8
9use thiserror::Error;
10
11/// Everything that can go wrong constructing `target-match` values.
12#[derive(Debug, Clone, PartialEq, Error)]
13#[non_exhaustive]
14pub enum Error {
15    /// Optics or field inputs were non-positive, non-finite, or insufficient to
16    /// derive a field of view.
17    #[error("invalid optics: {0}")]
18    InvalidOptics(String),
19}
20
21/// Convenience alias for `Result<T, `[`Error`](enum@Error)`>`.
22pub type Result<T> = core::result::Result<T, Error>;
23
24#[cfg(test)]
25mod tests {
26    use super::*;
27
28    #[test]
29    fn display_messages() {
30        assert_eq!(
31            Error::InvalidOptics("focal <= 0".into()).to_string(),
32            "invalid optics: focal <= 0"
33        );
34    }
35}
target_match/error.rs

target_match/
error.rs
