Trait ValidationCodeHashProvider 

pub trait ValidationCodeHashProvider<Hash> {
    // Required method
    fn code_hash_at(&self, at: Hash) -> Option<ValidationCodeHash>;
}

Provides the hash of validation code used for authoring/execution of blocks at a given hash.

Required Methods

fn code_hash_at(&self, at: Hash) -> Option<ValidationCodeHash>

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl<F, Hash> ValidationCodeHashProvider<Hash> for F

where F: Fn(Hash) -> Option<ValidationCodeHash>,