Trait sc_chain_spec::Extension

pub trait Extension: Serialize + DeserializeOwned + Clone {
    type Forks: IsForks;
    fn get<T: 'static>(&self) -> Option<&T>;
    fn get_any(&self, t: TypeId) -> &dyn Any;

    fn forks<BlockNumber, T>(&self) -> Option<Forks<BlockNumber, T>>
    where
        BlockNumber: Ord + Clone + 'static,
        T: Group + 'static,
        <Self::Forks as IsForks>::Extension: Extension,
        <<Self::Forks as IsForks>::Extension as Group>::Fork: Extension,
    { ... }
}

A collection of ChainSpec extensions.

This type can be passed around and allows the core modules to request a strongly-typed, but optional configuration.

Associated Types

type Forks: IsForks

Required methods

fn get<T: 'static>(&self) -> Option<&T>

Get an extension of specific type.

fn get_any(&self, t: TypeId) -> &dyn Any

Get an extension of specific type as refernce to Any

Provided methods

fn forks<BlockNumber, T>(&self) -> Option<Forks<BlockNumber, T>> where
    BlockNumber: Ord + Clone + 'static,
    T: Group + 'static,
    <Self::Forks as IsForks>::Extension: Extension,
    <<Self::Forks as IsForks>::Extension as Group>::Fork: Extension, 

Get forkable extensions of specific type.

Implementors

impl Extension for NoExtension

type Forks = Self

impl<B, E> Extension for Forks<B, E> where
    B: Serialize + DeserializeOwned + Ord + Clone + 'static,
    E: Extension + Group + 'static, 

type Forks = Self