Revert trait derives; add clone_from

src/map.rs

@@ -23,7 +23,6 @@ use alloc::collections::{btree_map, BTreeMap};
 use indexmap::{self, IndexMap};
 
 /// Represents a JSON key/value type.
-#[derive(Debug, Clone, PartialEq, Eq)]
 pub struct Map<K, V> {
     map: MapImpl<K, V>,
 }
@@ -297,6 +296,29 @@ impl Default for Map<String, Value> {
     }
 }
 
+impl Clone for Map<String, Value> {
+    #[inline]
+    fn clone(&self) -> Self {
+        Map {
+            map: self.map.clone(),
+        }
+    }
+
+    #[inline]
+    fn clone_from(&mut self, source: &Self) {
+        self.map.clone_from(&source.map)
+    }
+}
+
+impl PartialEq for Map<String, Value> {
+    #[inline]
+    fn eq(&self, other: &Self) -> bool {
+        self.map.eq(&other.map)
+    }
+}
+
+impl Eq for Map<String, Value> {}
+
 /// Access an element of this map. Panics if the given key is not present in the
 /// map.
 ///
@@ -346,6 +368,13 @@ where
     }
 }
 
+impl Debug for Map<String, Value> {
+    #[inline]
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
+        self.map.fmt(formatter)
+    }
+}
+
 #[cfg(any(feature = "std", feature = "alloc"))]
 impl serde::ser::Serialize for Map<String, Value> {
     #[inline]