From 974b83730e0e554d821a025f9d4945061f9d295e Mon Sep 17 00:00:00 2001
From: Kevin Reid <kpreid@google.com>
Date: Fri, 1 Apr 2022 20:17:02 -0700
Subject: [PATCH] impl Debug for StagingBelt

---
 wgpu/src/util/belt.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/wgpu/src/util/belt.rs b/wgpu/src/util/belt.rs
index 0145fb36bb..d735d18474 100644
--- a/wgpu/src/util/belt.rs
+++ b/wgpu/src/util/belt.rs
@@ -2,6 +2,7 @@ use crate::{
     Buffer, BufferAddress, BufferDescriptor, BufferSize, BufferUsages, BufferViewMut,
     CommandEncoder, Device, MapMode,
 };
+use std::fmt;
 use std::pin::Pin;
 use std::task::{self, Poll};
 use std::{future::Future, sync::mpsc};
@@ -182,3 +183,14 @@ impl StagingBelt {
         Join { futures }
     }
 }
+
+impl fmt::Debug for StagingBelt {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.debug_struct("StagingBelt")
+            .field("chunk_size", &self.chunk_size)
+            .field("active_chunks", &self.active_chunks.len())
+            .field("closed_chunks", &self.closed_chunks.len())
+            .field("free_chunks", &self.free_chunks.len())
+            .finish_non_exhaustive()
+    }
+}