From 6485e81f4bb542c60e931d27e8bb55901578db6f Mon Sep 17 00:00:00 2001
From: Gordon-F <ishaposhnik@icloud.com>
Date: Thu, 25 Mar 2021 21:56:22 +0300
Subject: [PATCH] [rs] Enable EXPERIMENTAL_TRANSLATION with GL backend for some
 examples

---
 wgpu/examples/boids/main.rs         | 2 +-
 wgpu/examples/cube/main.rs          | 2 +-
 wgpu/examples/hello-compute/main.rs | 2 +-
 wgpu/src/backend/error.rs           | 3 +--
 4 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/wgpu/examples/boids/main.rs b/wgpu/examples/boids/main.rs
index c84dd6cd58..7048d6fb18 100644
--- a/wgpu/examples/boids/main.rs
+++ b/wgpu/examples/boids/main.rs
@@ -37,7 +37,7 @@ impl framework::Example for Example {
         // load and compile the shader
         let mut flags = wgpu::ShaderFlags::VALIDATION;
         match adapter.get_info().backend {
-            wgt::Backend::Vulkan | wgt::Backend::Metal => {
+            wgt::Backend::Vulkan | wgt::Backend::Metal | wgt::Backend::Gl => {
                 flags |= wgpu::ShaderFlags::EXPERIMENTAL_TRANSLATION;
             }
             _ => {} //TODO
diff --git a/wgpu/examples/cube/main.rs b/wgpu/examples/cube/main.rs
index bb6670dda0..df565702cc 100644
--- a/wgpu/examples/cube/main.rs
+++ b/wgpu/examples/cube/main.rs
@@ -250,7 +250,7 @@ impl framework::Example for Example {
 
         let mut flags = wgpu::ShaderFlags::VALIDATION;
         match adapter.get_info().backend {
-            wgpu::Backend::Metal | wgpu::Backend::Vulkan => {
+            wgpu::Backend::Metal | wgpu::Backend::Vulkan | wgpu::Backend::Gl => {
                 flags |= wgpu::ShaderFlags::EXPERIMENTAL_TRANSLATION
             }
             _ => (), //TODO
diff --git a/wgpu/examples/hello-compute/main.rs b/wgpu/examples/hello-compute/main.rs
index 6e70c0236c..79523677a2 100644
--- a/wgpu/examples/hello-compute/main.rs
+++ b/wgpu/examples/hello-compute/main.rs
@@ -58,7 +58,7 @@ async fn execute_gpu(numbers: Vec<u32>) -> Vec<u32> {
     // Loads the shader from the SPIR-V file.arrayvec
     let mut flags = wgpu::ShaderFlags::VALIDATION;
     match adapter.get_info().backend {
-        wgpu::Backend::Vulkan | wgpu::Backend::Metal => {
+        wgpu::Backend::Vulkan | wgpu::Backend::Metal | wgpu::Backend::Gl => {
             flags |= wgpu::ShaderFlags::EXPERIMENTAL_TRANSLATION;
         }
         _ => {}
diff --git a/wgpu/src/backend/error.rs b/wgpu/src/backend/error.rs
index e02fa2170a..df4ac0e037 100644
--- a/wgpu/src/backend/error.rs
+++ b/wgpu/src/backend/error.rs
@@ -22,8 +22,7 @@ impl Error for ContextError {
 
 impl super::Context {
     pub(super) fn format_error(&self, err: &(impl Error + 'static)) -> String {
-        let mut err_descs = Vec::new();
-        err_descs.push(self.format_pretty_any(err));
+        let mut err_descs = vec![self.format_pretty_any(err)];
 
         let mut source_opt = err.source();
         while let Some(source) = source_opt {