1use thiserror::Error;
2
3#[derive(Clone, Debug, PartialEq)]
4pub enum SolverStatus {
5 Optimal,
6 Feasible,
7 Infeasible,
8 Unbounded,
9 TimeLimit,
10 NumericError,
11 NotSolved,
12 Other(String),
13}
14
15impl SolverStatus {
16 pub fn has_solution(&self) -> bool {
17 matches!(self, Self::Optimal | Self::Feasible)
18 }
19}
20
21#[derive(Debug, Error)]
22pub enum SolverError {
23 #[error("solver does not support model kind {0:?}")]
24 UnsupportedKind(oximo_core::ModelKind),
25 #[error("model is missing an objective")]
26 NoObjective,
27 #[error("nonlinear constructs are not supported by this backend")]
28 Nonlinear,
29 #[error("backend error: {0}")]
30 Backend(String),
31 #[error(transparent)]
32 Core(#[from] oximo_core::Error),
33}