Trait sp_inherents::CreateInherentDataProviders

pub trait CreateInherentDataProviders<Block: BlockT, ExtraArgs>: Send + Sync {
    type InherentDataProviders: InherentDataProvider;

    // Required method
    fn create_inherent_data_providers<'life0, 'async_trait>(
        &'life0 self,
        parent: Block::Hash,
        extra_args: ExtraArgs,
    ) -> Pin<Box<dyn Future<Output = Result<Self::InherentDataProviders, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}

Something that can create inherent data providers.

It is possible for the caller to provide custom arguments to the callee by setting the ExtraArgs generic parameter.

The crate already provides some convince implementations of this trait for Box<dyn CreateInherentDataProviders> and closures. So, it should not be required to implement this trait manually.

Required Associated Types

type InherentDataProviders: InherentDataProvider

The inherent data providers that will be created.

Required Methods

fn create_inherent_data_providers<'life0, 'async_trait>( &'life0 self, parent: Block::Hash, extra_args: ExtraArgs, ) -> Pin<Box<dyn Future<Output = Result<Self::InherentDataProviders, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Create the inherent data providers at the given parent block using the given extra_args.

Trait Implementations

impl<Block: BlockT, ExtraArgs: Send, IDPS: InherentDataProvider> CreateInherentDataProviders<Block, ExtraArgs> for Box<dyn CreateInherentDataProviders<Block, ExtraArgs, InherentDataProviders = IDPS>>

type InherentDataProviders = IDPS

The inherent data providers that will be created.

fn create_inherent_data_providers<'life0, 'async_trait>( &'life0 self, parent: Block::Hash, extra_args: ExtraArgs, ) -> Pin<Box<dyn Future<Output = Result<Self::InherentDataProviders, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Create the inherent data providers at the given parent block using the given extra_args.

Implementations on Foreign Types

impl<Block: BlockT, ExtraArgs: Send, IDPS: InherentDataProvider> CreateInherentDataProviders<Block, ExtraArgs> for Box<dyn CreateInherentDataProviders<Block, ExtraArgs, InherentDataProviders = IDPS>>

type InherentDataProviders = IDPS

fn create_inherent_data_providers<'life0, 'async_trait>( &'life0 self, parent: Block::Hash, extra_args: ExtraArgs, ) -> Pin<Box<dyn Future<Output = Result<Self::InherentDataProviders, Box<dyn Error + Send + Sync>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Implementors

impl<F, Block, IDP, ExtraArgs, Fut> CreateInherentDataProviders<Block, ExtraArgs> for F

where Block: BlockT, F: Fn(Block::Hash, ExtraArgs) -> Fut + Sync + Send, Fut: Future<Output = Result<IDP, Box<dyn Error + Send + Sync>>> + Send + 'static, IDP: InherentDataProvider + 'static, ExtraArgs: Send + 'static,

type InherentDataProviders = IDP