Module spec 

Available on crate feature reth only.

Structs

TempoChainSpec

Tempo chain spec type.

TempoChainSpecParser

Tempo chain specification parser.

TempoGenesisInfo

Tempo genesis info extracted from genesis extra_fields

Constants

SSTORE_CREATE_COST

TIP-1000 storage creation component for a zero-to-nonzero SSTORE.

SSTORE_SET_COST

TIP-1060 SSTORE residual: EVM 0→x base cost paid even when a credit applies.

STORAGE_CREDIT_VALUE

TIP-1060 value credited for clearing one occupied storage slot.

SUPPORTED_CHAINS

Chains supported by Tempo. First value should be used as the default.

SYSTEM_TX_ADDRESSES

SYSTEM_TX_COUNT

TEMPO_T0_BASE_FEE

T0 base fee: 10 billion attodollars (1×10^10).

TEMPO_T1_BASE_FEE

T1 base fee: 20 billion attodollars (2×10^10).

TEMPO_T1_EXISTING_NONCE_KEY_GAS

Gas cost for using an existing 2D nonce key (cold SLOAD + warm SSTORE reset).

TEMPO_T1_GENERAL_GAS_LIMIT

TIP-1010 general (non-payment) gas limit: 30 million gas per block. Cap for non-payment transactions.

TEMPO_T1_NEW_NONCE_KEY_GAS

Gas cost for using a new 2D nonce key (cold SLOAD + SSTORE set for 0 -> non-zero).

TEMPO_T1_TX_GAS_LIMIT_CAP

TIP-1010 per-transaction gas limit cap: 30 million gas. Allows maximum-sized contract deployments under TIP-1000 state creation costs.

TEMPO_T2_EXISTING_NONCE_KEY_GAS

T2 adds 2 warm SLOADs for the extended nonce key lookup.

TEMPO_T2_NEW_NONCE_KEY_GAS

T2 adds 2 warm SLOADs for the extended nonce key lookup.

TEMPO_T7_BASE_FEE_CAP

TIP-1067 base fee cap: below the T1 fixed base fee.

TEMPO_T7_BASE_FEE_FLOOR

TIP-1067 base fee floor: one twentieth of the TIP-1067 cap.

TEMPO_T7_BASE_FEE_GAS_TARGET

TIP-1067 gas target for the dynamic base fee controller.

TEMPO_T7_BASE_FEE_PARAMS

TIP-1067 uses EIP-1559’s base-fee update formula with a fixed 10M gas target.

Statics

DEV

Development chainspec with funded dev accounts and activated tempo hardforks

MODERATO

PRESTO

Functions

chain_value_parsercli

Clap value parser for [ChainSpec]s.

chainspec_from_chain_id

Resolve a TempoChainSpec from a chain id.

tempo_t7_next_block_base_fee

Returns the TIP-1067 base fee for the child of a block.