From 06ce6d7cc3df31193582e26aa924003f174473fb Mon Sep 17 00:00:00 2001
From: Sander Hautvast <shautvast@gmail.com>
Date: Wed, 26 Jan 2022 19:07:26 +0100
Subject: [PATCH] cannot move

---
 src/main.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/main.rs b/src/main.rs
index b0a06ab..c665851 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -29,6 +29,20 @@ impl List {
         };
         self.head = Link::More(Box::new(new_node));
     }
+
+    pub fn pop(&mut self) -> Option<i32> {
+        let result;
+        match &self.head {
+            Link::Empty => {
+                result = None;
+            }
+            Link::More(node) => {
+                result = Some(node.elem);
+                self.head = node.next;
+            }
+        };
+        result
+    }
 }
 
 #[cfg(test)]