diff options
Diffstat (limited to 'engine-ecs-macros/src/lib.rs')
| -rw-r--r-- | engine-ecs-macros/src/lib.rs | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/engine-ecs-macros/src/lib.rs b/engine-ecs-macros/src/lib.rs index 3eb02dd..a304706 100644 --- a/engine-ecs-macros/src/lib.rs +++ b/engine-ecs-macros/src/lib.rs @@ -98,6 +98,46 @@ pub fn component_derive(input: TokenStream) -> TokenStream *#id_var_ident } + fn type_reflection() -> Option<&'static #ecs_path::reflection::Type> + { + struct SpecializationTarget<T>(std::marker::PhantomData<T>); + + trait HasReflection + { + fn type_reflection(&self) + -> Option<&'static #ecs_path::reflection::Type>; + } + + trait NoReflection + { + fn type_reflection(&self) + -> Option<&'static #ecs_path::reflection::Type>; + } + + impl<T> NoReflection for &SpecializationTarget<T> + { + fn type_reflection(&self) + -> Option<&'static #ecs_path::reflection::Type> + { + None + } + } + + impl<T> HasReflection for SpecializationTarget<T> + where + T: #ecs_path::reflection::Reflection + { + fn type_reflection(&self) + -> Option<&'static #ecs_path::reflection::Type> + { + Some(T::type_reflection()) + } + } + + (&SpecializationTarget::<Self>(std::marker::PhantomData)) + .type_reflection() + } + fn name(&self) -> &'static str { std::any::type_name::<Self>() |