Trait otter_nodejs_tests::cast_trait_object::GetDynCastConfig

pub trait GetDynCastConfig<T> where
    T: ?Sized, {
    type Config: DynCastConfig
    where
        <Self::Config as DynCastConfig>::Target == T,
        <Self::Config as DynCastConfig>::Source == Self;
}

Get a DynCastConfig type for a source trait that casts to a target trait T.

This is used by the impl_dyn_cast macro to allow specifying only the traits that are being cast from and to instead of a concrete config type that implements the DynCastConfig trait.

This is also needed for the implementation of the DynCastExt trait to ensure that type inference works so that it is ergonomic to use.

Required Associated Types

type Config: DynCastConfig
where
    <Self::Config as DynCastConfig>::Target == T,
    <Self::Config as DynCastConfig>::Source == Self

A config type that casts from the Self trait to the trait T.

Implementors

impl GetDynCastConfig<dyn OutlineTrait + 'static> for dyn OutlineTrait + 'static

type Config = Config

impl GetDynCastConfig<dyn PieceBaseTrait + 'static> for dyn PieceBaseTrait + 'static

type Config = Config