cgp-error 0.4.1-alpha

Context-generic programming error components
Documentation 
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use cgp_component::{DelegateComponent, HasCgpProvider, IsProviderFor, UseContext, UseDelegate};
use cgp_macro::cgp_component;

use crate::traits::has_error_type::HasErrorType;

/**
   Used for injecting external error types into [`Self::Error`](HasErrorType::Error).

   As an example, if `Context: CanRaiseError<ParseIntError>`, then we would be
   able to call `Context::raise_error(err)` for an error value
   [`err: ParseIntError`](core::num::ParseIntError) and get back
   a [`Context::Error`](HasErrorType::Error) value.
*/
#[cgp_component {
    provider: ErrorRaiser,
    derive_delegate: UseDelegate<SourceError>,
}]
pub trait CanRaiseError<SourceError>: HasErrorType {
    fn raise_error(error: SourceError) -> Self::Error;
}