Skip to main content

sidereon_core/
error.rs

1//! Crate error type.
2//!
3//! The variants cover broad parsing, lookup, interpolation, and invalid-input
4//! failures across the crate.
5
6use core::fmt;
7
8/// Result alias for fallible `sidereon-core` operations.
9pub type Result<T> = core::result::Result<T, Error>;
10
11/// Errors produced by the `sidereon-core` crate.
12#[derive(Debug, Clone, PartialEq, Eq)]
13#[non_exhaustive]
14pub enum Error {
15    /// A product (SP3/RINEX/IONEX) could not be parsed.
16    Parse(String),
17    /// A requested satellite is not present in the product.
18    UnknownSatellite(crate::GnssSatelliteId),
19    /// A GLONASS G1/G2 frequency lookup did not receive an FDMA channel.
20    MissingGlonassChannel,
21    /// A requested terrain tile is not present in the terrain store.
22    MissingTerrainTile {
23        /// Integer latitude tile id.
24        lat_index: i32,
25        /// Integer longitude tile id.
26        lon_index: i32,
27    },
28    /// An IONEX slant-delay query lies outside the product coverage.
29    IonexOutOfCoverage(crate::ionex::IonexCoverageError),
30    /// A requested epoch lies outside the sampled / valid span.
31    EpochOutOfRange,
32    /// An operation received inputs it cannot combine (e.g. an empty set of
33    /// products to merge, or products on mismatched time scales, epoch grids, or
34    /// coordinate-system labels).
35    InvalidInput(String),
36}
37
38impl fmt::Display for Error {
39    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
40        match self {
41            Error::Parse(msg) => write!(f, "parse error: {msg}"),
42            Error::UnknownSatellite(id) => write!(f, "unknown satellite: {id}"),
43            Error::MissingGlonassChannel => write!(f, "missing GLONASS FDMA channel"),
44            Error::MissingTerrainTile {
45                lat_index,
46                lon_index,
47            } => write!(f, "missing terrain tile ({lat_index},{lon_index})"),
48            Error::IonexOutOfCoverage(error) => write!(f, "IONEX out of coverage: {error}"),
49            Error::EpochOutOfRange => write!(f, "epoch out of range"),
50            Error::InvalidInput(msg) => write!(f, "invalid input: {msg}"),
51        }
52    }
53}
54
55impl std::error::Error for Error {}