Trait scrypto::prelude::Categorize
source · pub trait Categorize<X>where
X: CustomValueKind,{
// Required method
fn value_kind() -> ValueKind<X>;
}Expand description
The Categorize trait marks a rust type as having a fixed value kind for SBOR encoding/decoding.
Most rust types will have a fixed value kind in the SBOR model, and so can implement Categorize,
but some (such as the SBOR Value) do not.
Implementing Categorize is required for being able to directly Encode / Decode any
collection containing the rust type - because the value kind is lifted/deduplicated in the encoded payload.
If a type cannot implement Categorize, as a work-around, you can put it into a collection by (eg)
wrapping it in a tuple of size 1.