ostd

Macro impl_untyped_frame_meta_for

Source 
macro_rules! impl_untyped_frame_meta_for {
    ($t:ty) => { ... };
    ($t:ty, $body:expr) => { ... };
}
Expand description

Makes a structure usable as untyped frame metadata.

If this macro is used for built-in typed frame metadata, it won’t compile.