Macro static_assertions::assert_obj_safe
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[src]
macro_rules! assert_obj_safe { ($($xs:ty),+) => { ... }; ($label:ident; $($xs:ty),+) => { ... }; }
Asserts at compile-time that the traits are object-safe.
This is useful for when changes are made to a trait that accidentally prevent it from being used as an object.