Move function calling to separate source file.

src/utils.rs

@@ -15,7 +15,7 @@ use crate::stdlib::{
     iter::FromIterator,
     mem,
     mem::MaybeUninit,
-    ops::{Add, AddAssign, Deref, Drop, Index, IndexMut},
+    ops::{Add, AddAssign, Deref, DerefMut, Drop, Index, IndexMut},
     str::FromStr,
     string::{String, ToString},
     vec::Vec,
@@ -572,6 +572,19 @@ impl<T> AsMut<[T]> for StaticVec<T> {
     }
 }
 
+impl<T> Deref for StaticVec<T> {
+    type Target = [T];
+    fn deref(&self) -> &Self::Target {
+        self.as_ref()
+    }
+}
+
+impl<T> DerefMut for StaticVec<T> {
+    fn deref_mut(&mut self) -> &mut Self::Target {
+        self.as_mut()
+    }
+}
+
 impl<T> Index<usize> for StaticVec<T> {
     type Output = T;