wtf is this

ipjs/src/utils/iter.rs

@@ -0,0 +1,35 @@
+use std::iter::Fuse;
+
+/// wrap ts into a [Fuse][std::iter::Fuse] or something
+pub struct Real<A: Clone, B: Iterator<Item = A>> {
+    prepend: A,
+    iter: B,
+    my_turn: bool,
+}
+
+impl<A: Clone, B: Iterator<Item = A>> Real<A, B> {
+    pub fn new(prepend: A, iter: B) -> Self {
+        Self {
+            prepend,
+            iter,
+            my_turn: true,
+        }
+    }
+    pub fn fuse(prepend: A, iter: B) -> Fuse<Self> {
+        Self::new(prepend, iter).fuse()
+    }
+}
+
+impl<A: Clone, B: Iterator<Item = A>> Iterator for Real<A, B> {
+    type Item = A;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        let a = if self.my_turn {
+            Some(self.prepend.clone())
+        } else {
+            self.iter.next()
+        };
+        self.my_turn = !self.my_turn;
+        a
+    }
+}

ipjs/src/utils/mod.rs

@@ -1 +1,2 @@
+pub mod iter;
 pub mod serialize;

ipjs/src/utils/serialize/mac.rs

@@ -1,4 +1,3 @@
-
 use macaddr::MacAddr;
 use serde::{self, Deserialize, Deserializer, de::Error as DeError};
 use serde::{Serialize, Serializer, de};