Trait CanUseComponent 

pub trait CanUseComponent<Component, Params = ()>
where
    Params: ?Sized,
{ }

This is a convenient type alias that is used in the same way as IsProviderFor, but with the Self type being the Context type rather than the Provider type that implements the provider trait.

The CanUseComponent trait is automatically implemented for any CGP Context type that implements the DelegateComponent<Component> trait, and when Contex::Delegate implements IsProviderFor<Component, Context, Params>.

This trait is used by check_components! to check whether a Context implements a given Component through its provider. When there are unsatisfied constraints, Rust would show the error messages from the IsProviderFor implementation.

Implementors

impl<Context, Component, Params> CanUseComponent<Component, Params> for Context

where Context: DelegateComponent<Component>, <Context as DelegateComponent<Component>>::Delegate: IsProviderFor<Component, Context, Params>, Params: ?Sized,