Trait Provider 

pub trait Provider<E> {
    type Error;

    // Required method
    fn visit<'m, 'd, V>(
        &self,
        credential: &Checked<'m, 'd, '_, E>,
        open: &[Open<'d>],
        operation: &ScopedReader<'d, '_>,
        visitor: impl for<'value, 'source> FnMut(Need<'value, 'source, 'm, 'd>) -> Result<(), V>,
    ) -> Result<Completeness, VisitError<Self::Error, V>>;
}

Same format owner as authentication, using its actual retained evidence. It discovers ALL credential-specific validation material, including the credential’s own status, using current Work before decoding/copy/allocation or arithmetic. Certificate-free authentication does not waive this step. EN319122-1 §§5.2.6.1, 5.4 and 6.3 require credential validation data in addition to the issuer’s X.509 path/status. https://www.etsi.org/deliver/etsi_en/319100_319199/31912201/01.03.01_60/en_31912201v010301p.pdf

Required Associated Types

type Error

Original processing/resource cause, not a negative completeness result.

Required Methods

fn visit<'m, 'd, V>( &self, credential: &Checked<'m, 'd, '_, E>, open: &[Open<'d>], operation: &ScopedReader<'d, '_>, visitor: impl for<'value, 'source> FnMut(Need<'value, 'source, 'm, 'd>) -> Result<(), V>, ) -> Result<Completeness, VisitError<Self::Error, V>>

Visit dependencies once without reauthenticating or acquiring sources.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors