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docs(provider): More context about Stateprovider (#1124)

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Matthias Seitz
2023-02-01 17:16:25 +01:00
committed by GitHub
parent 9f49beb5e5
commit e683197eac
1 changed files with 7 additions and 5 deletions
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12
crates/storage/provider/src/traits/state.rs
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@ -4,7 +4,7 @@ use auto_impl::auto_impl;
use reth_interfaces::Result;
use reth_primitives::{Address, BlockHash, BlockNumber, Bytes, StorageKey, StorageValue, H256};
/// Function needed for executor.
/// An abstraction for a type that provides state data.
#[auto_impl(&)]
pub trait StateProvider: BlockHashProvider + AccountProvider + Send + Sync {
/// Get storage.
@ -14,7 +14,8 @@ pub trait StateProvider: BlockHashProvider + AccountProvider + Send + Sync {
fn bytecode_by_hash(&self, code_hash: H256) -> Result<Option<Bytes>>;
}
/// Light wrapper that creates StateProvider.
/// Light wrapper that returns `StateProvider` implementations that correspond to the given
/// `BlockNumber` or the latest state.
pub trait StateProviderFactory: Send + Sync {
/// History State provider.
type HistorySP<'a>: StateProvider
@ -24,12 +25,13 @@ pub trait StateProviderFactory: Send + Sync {
type LatestSP<'a>: StateProvider
where
Self: 'a;
/// Storage provider for latest block
/// Storage provider for latest block.
fn latest(&self) -> Result<Self::LatestSP<'_>>;
/// History provider indexed by block number
/// Returns a [StateProvider] indexed by the given block number.
fn history_by_block_number(&self, block: BlockNumber) -> Result<Self::HistorySP<'_>>;
/// History provider indexed by block hash
/// Returns a [StateProvider] indexed by the given block hash.
fn history_by_block_hash(&self, block: BlockHash) -> Result<Self::HistorySP<'_>>;
}