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Trait sc_chain_spec::Extension

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pub trait Extension: Serialize + DeserializeOwned + Clone {
    type Forks: IsForks;

    // Required methods
    fn get<T: 'static>(&self) -> Option<&T>;
    fn get_any(&self, t: TypeId) -> &dyn Any;
    fn get_any_mut(&mut self, t: TypeId) -> &mut dyn Any;

    // Provided method
    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 { ... }
}
Expand description

A collection of ChainSpec extensions.

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

Required Associated Types§

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type Forks: IsForks

Required Methods§

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

Get an extension of specific type.

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

Get an extension of specific type as reference to Any.

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

Get an extension of specific type as mutable reference to Any.

Provided Methods§

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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.

Object Safety§

This trait is not object safe.

Implementors§

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impl Extension for NoExtension

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type Forks = Option<()>

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

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type Forks = Forks<B, E>