From f82eee48ced375cf57d61b814cb8fbdc35c4572e Mon Sep 17 00:00:00 2001
From: Yegor Bugayenko <yegor256@gmail.com>
Date: Mon, 24 Apr 2023 12:16:16 +0300
Subject: [PATCH] #18 less of a Copy

---
 src/debug.rs         |  8 ++------
 src/serialization.rs | 22 +++++++---------------
 2 files changed, 9 insertions(+), 21 deletions(-)

diff --git a/src/debug.rs b/src/debug.rs
index c4fdfe5..f1f55b6 100644
--- a/src/debug.rs
+++ b/src/debug.rs
@@ -22,17 +22,13 @@ use crate::Map;
 use std::fmt;
 use std::fmt::{Debug, Display, Formatter};
 
-impl<K: Copy + PartialEq + Display, V: Clone + Copy + Display, const N: usize> Display
-    for Map<K, V, N>
-{
+impl<K: Clone + PartialEq + Display, V: Clone + Display, const N: usize> Display for Map<K, V, N> {
     fn fmt(&self, f: &mut Formatter) -> fmt::Result {
         <&Self as Debug>::fmt(&self, f)
     }
 }
 
-impl<K: Copy + PartialEq + Display, V: Clone + Copy + Display, const N: usize> Debug
-    for Map<K, V, N>
-{
+impl<K: Clone + PartialEq + Display, V: Clone + Display, const N: usize> Debug for Map<K, V, N> {
     fn fmt(&self, f: &mut Formatter) -> fmt::Result {
         let mut parts = vec![];
         for (k, v) in self.iter() {
diff --git a/src/serialization.rs b/src/serialization.rs
index 5b51921..02e6533 100644
--- a/src/serialization.rs
+++ b/src/serialization.rs
@@ -25,7 +25,7 @@ use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use std::fmt::Formatter;
 use std::marker::PhantomData;
 
-impl<K: Copy + PartialEq + Serialize, V: Clone + Copy + Serialize, const N: usize> Serialize
+impl<K: Clone + PartialEq + Serialize, V: Clone + Serialize, const N: usize> Serialize
     for Map<K, V, N>
 {
     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
@@ -33,8 +33,8 @@ impl<K: Copy + PartialEq + Serialize, V: Clone + Copy + Serialize, const N: usiz
         S: Serializer,
     {
         let mut map = serializer.serialize_map(Some(self.len()))?;
-        for (a, v) in self {
-            map.serialize_entry(&a, &v)?;
+        for (a, v) in self.iter() {
+            map.serialize_entry(a, v)?;
         }
         map.end()
     }
@@ -42,12 +42,8 @@ impl<K: Copy + PartialEq + Serialize, V: Clone + Copy + Serialize, const N: usiz
 
 struct Vi<K, V, const N: usize>(PhantomData<K>, PhantomData<V>);
 
-impl<
-        'de,
-        K: Copy + PartialEq + Deserialize<'de>,
-        V: Clone + Copy + Deserialize<'de>,
-        const N: usize,
-    > Visitor<'de> for Vi<K, V, N>
+impl<'de, K: Clone + PartialEq + Deserialize<'de>, V: Clone + Deserialize<'de>, const N: usize>
+    Visitor<'de> for Vi<K, V, N>
 {
     type Value = Map<K, V, N>;
 
@@ -67,12 +63,8 @@ impl<
     }
 }
 
-impl<
-        'de,
-        K: Copy + PartialEq + Deserialize<'de>,
-        V: Clone + Copy + Deserialize<'de>,
-        const N: usize,
-    > Deserialize<'de> for Map<K, V, N>
+impl<'de, K: Clone + PartialEq + Deserialize<'de>, V: Clone + Deserialize<'de>, const N: usize>
+    Deserialize<'de> for Map<K, V, N>
 {
     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
     where