Merge #265

265: VariantMetadata blanket impl for EngineEnum r=Bromeon a=Mercerenies

Fix for #264.

Co-authored-by: Silvio Mayolo <[email protected]>

Author: bors[bot]

godot-core/src/builtin/variant/impls.rs

@@ -254,3 +254,12 @@ impl<T: EngineEnum> FromVariant for T {
             .and_then(|int| Self::try_from_ord(int).ok_or(VariantConversionError))
     }
 }
+
+impl<T: EngineEnum> VariantMetadata for T {
+    fn variant_type() -> VariantType {
+        VariantType::Int
+    }
+    fn param_metadata() -> sys::GDExtensionClassMethodArgumentMetadata {
+        sys::GDEXTENSION_METHOD_ARGUMENT_METADATA_INT_IS_INT32
+    }
+}

itest/rust/build.rs

@@ -84,6 +84,9 @@ fn collect_inputs() -> Vec<Input> {
     push!(inputs; int, InstanceId, -1, InstanceId::from_nonzero(0xFFFFFFFFFFFFFFF));
     push!(inputs; Variant, Variant, 123, 123i64.to_variant());
 
+    // EngineEnum
+    push!(inputs; int, Error, 0, Error::OK);
+
     inputs
 }
 
@@ -94,6 +97,7 @@ fn main() {
     let rust_tokens = quote::quote! {
         use godot::builtin::*;
         use godot::obj::InstanceId;
+        use godot::engine::global::Error;
 
         #[derive(godot::bind::GodotClass)]
         #[class(init)]