1 files changed, 18 insertions, 3 deletions
diff --git a/engine-macros/src/reflection/struct_impl.rs b/engine-macros/src/reflection/struct_impl.rs
index 2a271e0..b1adea5 100644
--- a/engine-macros/src/reflection/struct_impl.rs
+++ b/engine-macros/src/reflection/struct_impl.rs
@@ -1,7 +1,7 @@
 use quote::quote;
 
 use crate::reflection::field::{generate as generate_field, ReflectionFieldGenOptions};
-use crate::util::find_engine_crate_path;
+use crate::util::{find_engine_crate_path, syn_path, SynPathExt};
 
 pub fn generate(input: syn::ItemStruct) -> proc_macro2::TokenStream
 {
@@ -9,7 +9,22 @@ pub fn generate(input: syn::ItemStruct) -> proc_macro2::TokenStream
 
     let input_ident = input.ident;
 
-    let (impl_generics, type_generics, where_clause) = input.generics.split_for_impl();
+    let type_reflection_optional = input.generics.params.is_empty();
+
+    let mut generics = input.generics;
+
+    for type_param in generics.type_params_mut() {
+        type_param
+            .bounds
+            .push(syn::TypeParamBound::Trait(syn::TraitBound {
+                paren_token: None,
+                modifier: syn::TraitBoundModifier::None,
+                lifetimes: None,
+                path: engine_crate_path.join(syn_path!(reflection::Reflection)),
+            }));
+    }
+
+    let (impl_generics, type_generics, where_clause) = generics.split_for_impl();
 
     let fields = input
         .fields
@@ -29,7 +44,7 @@ pub fn generate(input: syn::ItemStruct) -> proc_macro2::TokenStream
                             quote! { std::mem::offset_of!(Self, #field_index) }
                         }
                     },
-                    type_reflection_optional: input.generics.params.is_empty(),
+                    type_reflection_optional,
                 },
             )
         });