From 6d14236aa4bc6d72aa2dc1693e4deebdd10534bf Mon Sep 17 00:00:00 2001
From: Daniel Seiller <earthnuker@gmail.com>
Date: Tue, 8 Dec 2020 14:37:28 +0100
Subject: [PATCH] Day 8 minor cleanup

---
 src/day8.rs | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/src/day8.rs b/src/day8.rs
index 4b6883a..bdedf96 100644
--- a/src/day8.rs
+++ b/src/day8.rs
@@ -14,6 +14,18 @@ pub struct CPU {
     acc: i64,
 }
 
+impl Inst {
+    fn flip(&mut self) {
+        if let Some(new_inst) = match &self {
+            Inst::Jmp { offset } => Some(Inst::Nop { unused: *offset }),
+            Inst::Nop { unused } => Some(Inst::Jmp { offset: *unused }),
+            _ => None,
+        } {
+            *self=new_inst;
+        };
+    }
+}
+
 impl From<&str> for Inst {
     fn from(inst: &str) -> Self {
         let mut inst = inst.split_whitespace();
@@ -46,13 +58,7 @@ impl CPU {
     }
 
     fn flip(&mut self, idx: usize) {
-        if let Some(new_inst) = match &self.program[idx] {
-            Inst::Jmp { offset } => Some(Inst::Nop { unused: *offset }),
-            Inst::Nop { unused } => Some(Inst::Jmp { offset: *unused }),
-            _ => None,
-        } {
-            self.program[idx] = new_inst;
-        };
+        self.program[idx].flip();
     }
 
     fn step(&mut self) -> bool {