Trait BuiltInTemplate 

pub trait BuiltInTemplate: Sized {
    type Template: Template;
}

Roughly equivalent to FromTemplate, but does not have a blanket implementation for Default + Clone types. This is generally used for common generic collection types like Option and Vec, which have Default + Clone impls and therefore also pick up the FromTemplate behavior. This is fine when the T in Option<T> is not “templated” (ex: does not have an explicit FromTemplate derive). But if T is “templated”, such as Option<Handle<T>>, then it would require a manual #[template(OptionTemplate<HandleTemplate<T>>)] field annotation. This isn’t fun to type out.

BuiltInTemplate enables equivalent “template type inference”, by annotating a field with a type that implements BuiltInTemplate with #[template(built_in)].

Required Associated Types

type Template: Template

The template to consider the “built in” template for this type.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T: FromTemplate> BuiltInTemplate for Option<T>

type Template = OptionTemplate<<T as FromTemplate>::Template>

impl<T: FromTemplate> BuiltInTemplate for Vec<T>

type Template = VecTemplate<<T as FromTemplate>::Template>

Implementors