iteration is possible

Author: molpopgen

src/table_column.rs

@@ -28,6 +28,15 @@ macro_rules! make_table_column {
             }
         }
 
+        impl<'table, T> $name<'table, T>
+        where
+            T: Copy,
+        {
+            pub fn iter(&self) -> impl Iterator<Item = T> + '_ {
+                self.0.iter().map(|&value| value)
+            }
+        }
+
         impl<T> std::ops::Index<usize> for $name<'_, T> {
             type Output = T;
             fn index(&self, index: usize) -> &Self::Output {
@@ -59,3 +68,11 @@ macro_rules! make_table_column {
 
 make_table_column!(NodeTableColumn, NodeId);
 make_table_column!(EdgeTableColumn, EdgeId);
+
+#[test]
+fn test_table_column_iter() {
+    make_table_column!(TestTableColumn, NodeId);
+    let v = vec![1, 2, 3];
+    let c = TestTableColumn(&v);
+    assert_eq!(c.iter().collect::<Vec::<_>>(), [1, 2, 3]);
+}