Implement vet for fixed size arrays

src/lib.rs

@@ -102,6 +102,14 @@ pub trait Vet {
     }
 }
 
+impl<T: Vet, const N: usize> Vet for [T; N] {
+    type VetError = T::VetError;
+
+    fn is_valid(&self) -> Result<(), Self::VetError> {
+        self.iter().try_for_each(|i| i.is_valid())
+    }
+}
+
 impl<T: Vet> Vet for Option<T> {
     type VetError = T::VetError;
 

src/tests.rs

@@ -26,6 +26,18 @@ fn vet_type() {
     assert!(foo.is_valid().is_err());
 }
 
+#[test]
+fn vet_array() {
+    let foo: [EvenUsize; 0] = [];
+    assert!(foo.is_valid().is_ok());
+
+    let foo = [EvenUsize(2), EvenUsize(4)];
+    assert!(foo.is_valid().is_ok());
+
+    let foo = [EvenUsize(12), EvenUsize(0), EvenUsize(5)];
+    assert!(foo.is_valid().is_err());
+}
+
 #[test]
 fn vet_option() {
     let foo = None::<EvenUsize>;