Module core::any::tags

Type tags are used to identify a type using a separate value. This module includes type tags for some very common types.

Currently type tags are not exposed to the user. But in the future, if you want to use the Provider API with more complex types (typically those including lifetime parameters), you will need to write your own tags.

Structs

• MaybeSizedValue
  Type-based tag similar to Value but which may be unsized (i.e., has a ?Sized bound).
• Ref
  Type-based tag for reference types (&'a T, where T is represented by <I as MaybeSizedType<'a>>::Reified.
• Value
  Type-based tag for types bounded by 'static, i.e., with no borrowed elements.

Traits

• MaybeSizedType
  Similar to the Type trait, but represents a type which may be unsized (i.e., has a ?Sized bound). E.g., str.
• Type
  This trait is implemented by specific tag types in order to allow describing a type which can be requested for a given lifetime 'a.