move direction

sbp/src/euler.rs

@@ -1,6 +1,7 @@
 use super::grid::{Grid, Metrics};
 use super::integrate;
 use super::operators::{InterpolationOperator, SbpOperator2d, UpwindOperator2d};
+use super::utils::Direction;
 use super::Float;
 use ndarray::azip;
 use ndarray::prelude::*;
@@ -605,13 +606,6 @@ pub enum BoundaryCharacteristic {
     Interpolate(usize),
 }
 
-pub struct Direction<T> {
-    pub north: T,
-    pub south: T,
-    pub west: T,
-    pub east: T,
-}
-
 pub type BoundaryTerms<'a> = Direction<ArrayView2<'a, Float>>;
 pub type BoundaryCharacteristics = Direction<BoundaryCharacteristic>;
 

sbp/src/utils.rs

@@ -2,6 +2,13 @@ use crate::grid::Grid;
 use crate::Float;
 use json::JsonValue;
 
+pub struct Direction<T> {
+    pub north: T,
+    pub south: T,
+    pub west: T,
+    pub east: T,
+}
+
 #[derive(Debug, Clone)]
 pub struct ExtendedGrid {
     pub grid: Grid,