feat!: rename len to order

Author: siliconlad

src/coordinate.rs

@@ -16,7 +16,7 @@ impl Coordinate {
         Ok(Self { indices })
     }
 
-    pub fn len(&self) -> usize {
+    pub fn order(&self) -> usize {
         self.indices.len()
     }
 
@@ -77,9 +77,9 @@ mod tests {
     use super::*;
 
     #[test]
-    fn test_len() {
+    fn test_order() {
         let coord = coord![1, 2, 3].unwrap();
-        assert_eq!(coord.len(), 3);
+        assert_eq!(coord.order(), 3);
     }
 
     #[test]

src/storage.rs

@@ -16,8 +16,8 @@ impl<T> DynamicStorage<T> {
 
     /// For the row-wise maths see: https://bit.ly/3KQjPa3
     pub fn flatten(&self, coord: &Coordinate, shape: &Shape) -> Result<usize, ShapeError> {
-        if coord.len() != shape.order() {
-            let msg = format!("incorrect order ({} vs {}).", coord.len(), shape.order());
+        if coord.order() != shape.order() {
+            let msg = format!("incorrect order ({} vs {}).", coord.order(), shape.order());
             return Err(ShapeError::new(msg.as_str()));
         }