From eb7abc70eaf8c7a70a72f8db3e775c2947ddf566 Mon Sep 17 00:00:00 2001
From: Bert Peters <bert@bertptrs.nl>
Date: Sat, 8 May 2021 14:28:51 +0200
Subject: [PATCH] Derive Default more rather than implement it

---
 src/lib.rs     |  6 ++++++
 src/stdsync.rs | 17 ++++-------------
 2 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 1dbd923..13ca527 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -137,6 +137,12 @@ impl MutexId {
     }
 }
 
+impl Default for MutexId {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl fmt::Debug for MutexId {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(f, "MutexID({:?})", self.0)
diff --git a/src/stdsync.rs b/src/stdsync.rs
index d38bad6..41c1806 100644
--- a/src/stdsync.rs
+++ b/src/stdsync.rs
@@ -53,7 +53,7 @@ pub type DebugRwLock<T> = RwLock<T>;
 ///
 /// Refer to the [crate-level][`crate`] documentaiton for the differences between this struct and
 /// the one it wraps.
-#[derive(Debug)]
+#[derive(Debug, Default)]
 pub struct TracingMutex<T> {
     inner: Mutex<T>,
     id: MutexId,
@@ -139,12 +139,6 @@ impl<T> TracingMutex<T> {
     }
 }
 
-impl<T: ?Sized + Default> Default for TracingMutex<T> {
-    fn default() -> Self {
-        Self::new(T::default())
-    }
-}
-
 impl<T> From<T> for TracingMutex<T> {
     fn from(t: T) -> Self {
         Self::new(t)
@@ -241,12 +235,9 @@ impl<T> TracingRwLock<T> {
     }
 }
 
-impl<T> Default for TracingRwLock<T>
-where
-    T: Default,
-{
-    fn default() -> Self {
-        Self::new(T::default())
+impl<T> From<T> for TracingRwLock<T> {
+    fn from(t: T) -> Self {
+        Self::new(t)
     }
 }