Module bal 

Block Access List (BAL) data structures for efficient state access in blockchain execution.

This module provides types for managing Block Access Lists, which optimize state access by pre-computing and organizing data that will be accessed during block execution.

Key Types

• BlockAccessIndex: block access index
• BalAccountInfo: account fields a BAL changed, each None when not written
• BalAccountLookup: complete, partial, or uncovered account information at a read position
• Bal: Main BAL structure containing a map of accounts
• BalWrites<T>: Array of (index, value) pairs representing sequential writes to a state item
• AccountBal: Complete BAL structure for an account (balance, nonce, code, and storage)
• AccountInfoBal: Account info BAL data (nonce, balance, code)
• StorageBal: Storage-level BAL data for an account

Modules

account

BAL builder module

alloy

Alloy BAL types conversions.

writes

BAL containing writes.

Structs

AccountBal

Account BAL structure.

AccountInfoBal

Account info bal structure.

Bal

BAL structure.

BalAccountInfo

The post-block account-level state recorded by an AccountChanges entry.

BalWrites

Use to store values

BlockAccessIndex

Block access index within a block.

StorageBal

Storage BAL

Enums

BalAccountLookup

Account information available from a BAL at a read position.

BalError

Error returned when a BAL (Block Access List, EIP-7928) lookup cannot find data the caller expected to be present.