wgpu-hal: Give a more helpful error when no backends are enabled.

gfx-rs · Dec 2, 2022 · 6124f8e · 6124f8e
1 parent 259317d
commit 6124f8e
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/wgpu-hal/src/lib.rs b/wgpu-hal/src/lib.rs
@@ -49,6 +49,15 @@
     clippy::pattern_type_mismatch,
 )]
 
+#[cfg(not(any(
+    feature = "dx11",
+    feature = "dx12",
+    feature = "gles",
+    feature = "metal",
+    feature = "vulkan"
+)))]
+compile_error!("No back ends enabled in `wgpu-hal`. Enable at least one backend feature.");
+
 #[cfg(all(feature = "metal", not(any(target_os = "macos", target_os = "ios"))))]
 compile_error!("Metal API enabled on non-Apple OS. If your project is not using resolver=\"2\" in Cargo.toml, it should.");
 #[cfg(all(feature = "dx12", not(windows)))]