[−][src]Trait rkyv_typename::TypeName
Builds a name for a type.
An implementation can be derived automatically with
#[derive(TypeName)]. See TypeName
for more details.
Names cannot be guaranteed to be unique and although they are usually suitable to use as keys, precautions should be taken to ensure that if name collisions happen that they are detected and fixable.
Examples
Most of the time, #[derive(TypeName)] will suit your
needs. However, if you need more control, you can always
implement it manually:
use rkyv_typename::TypeName; struct Example; impl TypeName for Example { fn build_type_name<F: FnMut(&str)>(mut f: F) { f("CoolStruct"); } } struct GenericExample<T, U, V>(T, U, V); impl<T: TypeName, U: TypeName, V: TypeName> TypeName for GenericExample<T, U, V> { fn build_type_name<F: FnMut(&str)>(mut f: F) { f("CoolGeneric<"); T::build_type_name(&mut f); f(", "); U::build_type_name(&mut f); f(", "); V::build_type_name(&mut f); f(">"); } } fn type_name<T: TypeName>() -> String { let mut result = String::new(); T::build_type_name(|piece| result += piece); result } assert_eq!(type_name::<Example>(), "CoolStruct"); assert_eq!(type_name::<GenericExample<i32, Option<String>, Example>>(), "CoolGeneric<i32, Option<String>, CoolStruct>");
Required methods
fn build_type_name<F: FnMut(&str)>(f: F)
Submits the pieces of the type name to the given function.