Module externalptr_std 

TypedExternal implementations for standard library types.

This module provides TypedExternal implementations for common std types, allowing them to be stored in ExternalPtr<T> without manual implementation.

Generic Types

For generic types like Vec<T>, the type name does not include the type parameter (e.g., Vec<i32> and Vec<String> both have type name “Vec”). This means type checking at the R level won’t distinguish between different instantiations. If you need stricter type safety, create a newtype wrapper and derive ExternalPtr.

Macros

impl_te 🔒

Implement TypedExternal for a concrete type. For standard library types, we use the simple name for both display and ID.

impl_te_generic 🔒

Implement TypedExternal for a generic type with ’static bounds. For standard library types, we prefix the ID with “std::” for clarity.