From de8570240892ff84fd53a6ae4867e4fbdf396f86 Mon Sep 17 00:00:00 2001
From: "Jan Alexander Steffens (heftig)" <jsteffens@make.tv>
Date: Wed, 4 Sep 2019 14:34:04 +0200
Subject: [PATCH] Iterator: Manually implement Debug

The derived implementation is restricted to `where T: Debug`, but the
iterator doesn't actually contain a value of type T.
---
 gstreamer/src/iterator.rs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/gstreamer/src/iterator.rs b/gstreamer/src/iterator.rs
index 37c689097..1e7a8e3a5 100644
--- a/gstreamer/src/iterator.rs
+++ b/gstreamer/src/iterator.rs
@@ -48,7 +48,6 @@ impl Error for IteratorError {
 }
 
 // Implemented manually so that we can use generics for the item
-#[derive(Debug)]
 pub struct Iterator<T> {
     iter: ptr::NonNull<gst_sys::GstIterator>,
     borrowed: bool,
@@ -462,6 +461,15 @@ impl<T: StaticType + 'static> Clone for Iterator<T> {
     }
 }
 
+impl<T> fmt::Debug for Iterator<T> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        f.debug_struct("Iterator")
+            .field("iter", &self.iter)
+            .field("borrowed", &self.borrowed)
+            .finish()
+    }
+}
+
 impl<T> Drop for Iterator<T> {
     fn drop(&mut self) {
         if !self.borrowed {