@ethereumjs/vm / VMOpts
Options for instantiating a VM.
• Optional activatePrecompiles: boolean
If true, create entries in the state tree for the precompiled contracts, saving some gas the first time each of them is called.
If this parameter is false, each call to each of them has to pay an extra 25000 gas for creating the account. If the account is still empty after this call, it will be deleted, such that this extra cost has to be paid again.
Setting this to true has the effect of precompiled contracts' gas costs matching mainnet's from the very first call, which is intended for testing networks.
Default: false
• Optional blockchain: BlockchainInterface
A Blockchain object for storing/retrieving blocks
• Optional common: Common
Use a Common instance if you want to change the chain setup.
chain: all chains supported byCommonor a custom chainhardfork:mainnethardforks up to theParishardforkeips:1559(usage e.g.eips: [ 1559, ])
Note: check the associated @ethereumjs/evm instance options
documentation for supported EIPs.
Default setup if no Common instance is provided:
chain:mainnethardfork:pariseips:[]
• Optional evm: EVMInterface
Use a custom EVM to run Messages on. If this is not present, use the default EVM.
• Optional genesisState: GenesisState
A genesisState to generate canonical genesis for the "in-house" created stateManager if external stateManager not provided for the VM, defaults to an empty state
• Optional profilerOpts: VMProfilerOpts
• Optional setHardfork: boolean | BigIntLike
Set the hardfork either by timestamp (for HFs from Shanghai onwards) or by block number for older Hfs.
Additionally it is possible to pass in a specific TD value to support live-Merge-HF transitions. Note that this should only be needed in very rare and specific scenarios.
Default: false (HF is set to whatever default HF is set by the Common instance)
• Optional stateManager: EVMStateManagerInterface
A StateManager instance to use as the state store