Crate context

Expand description

Optimism-specific constants, types, and helpers.

Modules§

block: This module contains BlockEnv and it implements Block trait.
cfg: This module contains CfgEnv and implements Cfg trait for it.
context: This module contains Context struct and implements ContextTr trait for it.
either: The enum Either with variants Left and Right is a general purpose sum type with two cases.
evm: This module contains Evm struct.
journal: This module contains Journal struct and implements JournalTr trait for it.
journaled_state
local: Local context that is filled by execution.
result
transaction
tx: This module contains TxEnv struct and implements Transaction trait for it.

BlockEnv: The block environment
CfgEnv: EVM configuration
Context: EVM context contains data that EVM needs for execution.
Evm: Main EVM structure that contains all data needed for execution.
Journal: A journal of state changes internal to the EVM
JournalInner: Inner journal state that contains journal and state changes.
JournalOutput: Output of the journal after finalizing.
LocalContext: Local context that is filled by execution.
TxEnv: The Transaction Environment is a struct that contains all fields that can be found in all Ethereum transaction, including EIP-4844, EIP-7702, EIP-7873, etc. It implements the Transaction trait, which is used inside the EVM to execute a transaction.

CreateScheme: Create scheme
JournalEntry: Journal entries that are used to track changes to the state and are used to revert it.
TransactionType: Transaction types of all Ethereum transaction

Block: Trait for retrieving block information required for execution.
Cfg
ContextSetters
ContextTr: Trait that defines the context of the EVM execution.
DBErrorMarker: Database error marker is needed to implement From conversion for Error type.
Database: EVM database interface.
JournalEntryTr: Trait for tracking and reverting state changes in the EVM. Journal entry contains information about state changes that can be reverted.
JournalTr: Trait that contains database and journal of all changes that were made to the state.
LocalContextTr: Local context used for caching initcode from Initcode transactions.
Transaction: Main Transaction trait that abstracts and specifies all transaction currently supported by Ethereum