pub trait AreaObjectDesc {
// Required method
fn area(&self) -> &Option<Area>;
}
Expand description
有区域对象
Required Methods§
Implementations on Foreign Types§
Implementors§
impl AreaObjectDesc for SubDescNone
impl<T> AreaObjectDesc for NamedObjectDesc<T>
§NamedObjectDesc 的 AreaObjectDesc 自动实现
如果 T::AreaType 实现了 AreaObjectDesc
则自动为 NamedObjectDesc