pub trait IsSet { }Expand description
Implemented by typestate markers of properties that have been set.
build() on a generated builder requires every required property’s marker
to implement this trait. Markers of unset properties are types named after
the property, so the compile error names exactly which property is missing.
Dyn Compatibility§
This trait is dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".