pub trait ChangeSetReader {
// Required methods
fn account_block_changeset(
&self,
block_number: u64,
) -> Result<Vec<AccountBeforeTx>, ProviderError>;
fn get_account_before_block(
&self,
block_number: u64,
address: Address,
) -> Result<Option<AccountBeforeTx>, ProviderError>;
fn account_changesets_range(
&self,
range: impl RangeBounds<u64>,
) -> Result<Vec<(u64, AccountBeforeTx)>, ProviderError>;
}Available on crate feature
storage-api only.Expand description
AccountChange reader
Required Methods§
Sourcefn account_block_changeset(
&self,
block_number: u64,
) -> Result<Vec<AccountBeforeTx>, ProviderError>
fn account_block_changeset( &self, block_number: u64, ) -> Result<Vec<AccountBeforeTx>, ProviderError>
Iterate over account changesets and return the account state from before this block.
Sourcefn get_account_before_block(
&self,
block_number: u64,
address: Address,
) -> Result<Option<AccountBeforeTx>, ProviderError>
fn get_account_before_block( &self, block_number: u64, address: Address, ) -> Result<Option<AccountBeforeTx>, ProviderError>
Search the block’s changesets for the given address, and return the result.
Returns None if the account was not changed in this block.
Sourcefn account_changesets_range(
&self,
range: impl RangeBounds<u64>,
) -> Result<Vec<(u64, AccountBeforeTx)>, ProviderError>
fn account_changesets_range( &self, range: impl RangeBounds<u64>, ) -> Result<Vec<(u64, AccountBeforeTx)>, ProviderError>
Get all account changesets in a range of blocks.
Accepts any range type that implements RangeBounds<BlockNumber>, including:
Range<BlockNumber>(e.g.,0..100)RangeInclusive<BlockNumber>(e.g.,0..=99)RangeFrom<BlockNumber>(e.g.,0..) - iterates until exhausted
If there is no start bound, 0 is used as the start block.
Returns a vector of (block_number, changeset) pairs.
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety".