From 2b0e3ed01cfcc4bcccc7fd63b2581b260c00b089 Mon Sep 17 00:00:00 2001
From: Jim Blandy <jimb@red-bean.com>
Date: Mon, 15 Apr 2024 17:38:56 -0700
Subject: [PATCH] [core] Don't derive `Default` for `ResourceMaps`.

The derivation is only effective if the generic type parameter `A`
also implements `Default`, which `HalApi` implementations generally
don't, so this derivation never actually took place. (This is why
`ResourceMaps::new` is written out the way it is.)
---
 wgpu-core/src/device/life.rs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/wgpu-core/src/device/life.rs b/wgpu-core/src/device/life.rs
index 78c6c77b1..85bf439f5 100644
--- a/wgpu-core/src/device/life.rs
+++ b/wgpu-core/src/device/life.rs
@@ -23,7 +23,6 @@ use std::sync::Arc;
 use thiserror::Error;
 
 /// A struct that keeps lists of resources that are no longer needed by the user.
-#[derive(Default)]
 pub(crate) struct ResourceMaps<A: HalApi> {
     pub buffers: FastHashMap<TrackerIndex, Arc<Buffer<A>>>,
     pub staging_buffers: FastHashMap<TrackerIndex, Arc<StagingBuffer<A>>>,