domain_block_builder

Struct BlockBuilder

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pub struct BlockBuilder<Client, Block: BlockT, Backend: Backend<Block>, Exec> { /* private fields */ }
Expand description

Utility for building new (valid) blocks from a stream of extrinsics.

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impl<Client, Block, Backend, Exec> BlockBuilder<Client, Block, Backend, Exec>
where Block: BlockT, Client: ProvideRuntimeApi<Block> + ExecutorProvider<Block>, Client::Api: BlockBuilderApi<Block>, Backend: Backend<Block>, Exec: CodeExecutor,

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pub fn new( client: Arc<Client>, parent_hash: Block::Hash, parent_number: NumberFor<Block>, inherent_digests: Digest, backend: Arc<Backend>, exec: Arc<Exec>, extrinsics: VecDeque<Block::Extrinsic>, maybe_inherent_data: Option<InherentData>, ) -> Result<Self, Error>

Create a new instance of builder based on the given parent_hash and parent_number.

While proof recording is enabled, all accessed trie nodes are saved. These recorded trie nodes can be used by a third party to prove the output of this block builder without having access to the full storage.

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pub fn prepare_storage_changes_before( &mut self, extrinsic_index: usize, ) -> Result<CollectedStorageChanges<HashingFor<Block>>, Error>

Returns the state before executing the extrinsic at given extrinsic index.

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pub fn prepare_storage_changes_before_finalize_block( &mut self, ) -> Result<CollectedStorageChanges<HashingFor<Block>>, Error>

Returns the state before finalizing the block.

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pub fn build(self) -> Result<BuiltBlock<Block>, Error>

Consume the builder to build a valid Block containing all pushed extrinsics.

Returns the build Block, the changes to the storage and an optional StorageProof supplied by self.api, combined as BuiltBlock. The storage proof will be Some(_) when proof recording was enabled.

Auto Trait Implementations§

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impl<Client, Block, Backend, Exec> Freeze for BlockBuilder<Client, Block, Backend, Exec>
where <Block as Block>::Hash: Freeze, <<Block as Block>::Header as Header>::Number: Freeze, <Backend as Backend<Block>>::State: Freeze,

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impl<Client, Block, Backend, Exec> RefUnwindSafe for BlockBuilder<Client, Block, Backend, Exec>
where <Block as Block>::Hash: RefUnwindSafe, <<Block as Block>::Header as Header>::Number: RefUnwindSafe, <Backend as Backend<Block>>::State: RefUnwindSafe, <Block as Block>::Extrinsic: RefUnwindSafe, Client: RefUnwindSafe, Exec: RefUnwindSafe, <<Block as Block>::Header as Header>::Hashing: RefUnwindSafe,

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impl<Client, Block, Backend, Exec> Send for BlockBuilder<Client, Block, Backend, Exec>
where Client: Sync + Send, Exec: Sync + Send,

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impl<Client, Block, Backend, Exec> Sync for BlockBuilder<Client, Block, Backend, Exec>
where <Backend as Backend<Block>>::State: Sync, Client: Sync + Send, Exec: Sync + Send,

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impl<Client, Block, Backend, Exec> Unpin for BlockBuilder<Client, Block, Backend, Exec>
where <Block as Block>::Hash: Unpin, <<Block as Block>::Header as Header>::Number: Unpin, <Backend as Backend<Block>>::State: Unpin, <Block as Block>::Extrinsic: Unpin, <<Block as Block>::Header as Header>::Hashing: Unpin,

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impl<Client, Block, Backend, Exec> UnwindSafe for BlockBuilder<Client, Block, Backend, Exec>
where <Block as Block>::Hash: UnwindSafe, <<Block as Block>::Header as Header>::Number: UnwindSafe, <Backend as Backend<Block>>::State: UnwindSafe, Client: RefUnwindSafe, Exec: RefUnwindSafe, <Block as Block>::Extrinsic: UnwindSafe, <<Block as Block>::Header as Header>::Hashing: UnwindSafe,

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