ethereum.forks.bpo5.fork_typesethereum.forks.amsterdam.fork_types

Ethereum Types.

.. contents:: Table of Contents :backlinks: none :local:

Introduction

Types reused throughout the specification, which are specific to Ethereum.

BlockAccessIndex

Position within the set of all changes in a Block.

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BlockAccessIndex = U32

VersionedHash

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VersionedHash = Hash32

Bloom

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Bloom = Bytes256

RegularGas

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RegularGas = NewType("RegularGas", Uint)

StateGas

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StateGas = NewType("StateGas", Uint)

StateGasPerByte

State gas charged per byte of state growth, per EIP-8037.

A rate, not an amount: deliberately not a Uint, since adding a rate to a gas amount is meaningless. Multiplying it by a byte count, in either operand order, yields a StateGas.

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@final
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@slotted_freezable
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@dataclass
class StateGasPerByte:

rate

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    rate: Uint

__mul__

Return the state gas for num_bytes charged at this rate.

def __mul__(​self, ​​num_bytes: Uint​) -> StateGas:
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        <snip>
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        return StateGas(self.rate * num_bytes)

__rmul__

Return the state gas for num_bytes charged at this rate.

def __rmul__(​self, ​​num_bytes: Uint​) -> StateGas:
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        <snip>
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        return StateGas(self.rate * num_bytes)

encode_account

Encode Account dataclass.

Storage is not stored in the Account dataclass, so Accounts cannot be encoded without providing a storage root.

def encode_account(​raw_account_data: Account, ​​storage_root: Bytes​) -> Bytes:
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    <snip>
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    return rlp.encode(
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        (
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            raw_account_data.nonce,
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            raw_account_data.balance,
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            storage_root,
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            raw_account_data.code_hash,
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        )
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    )

Authorization

The authorization for a set code transaction.

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@final
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@slotted_freezable
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@dataclass
class Authorization:

chain_id

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    chain_id: U256

address

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    address: Address

nonce

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    nonce: U64

y_parity

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    y_parity: U8

r

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    r: U256

s

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    s: U256