Module handler 

Tempo EVM Handler implementation.

Structs

TempoEvmHandler

Tempo EVM [Handler] implementation with Tempo specific modifications:

Constants

EXPIRING_NONCE_GAS

Gas cost for expiring nonce transactions (replay check + insert).

KEYCHAIN_VALIDATION_GAS 🔒

Additional gas for Keychain signatures (key validation overhead: COLD_SLOAD_COST + 900 processing)

KEY_AUTH_BASE_GAS 🔒

Base gas for KeyAuthorization (22k storage + 5k buffer), signature gas added at runtime

KEY_AUTH_PER_LIMIT_GAS 🔒

Gas per spending limit in KeyAuthorization

P256_VERIFY_GAS 🔒

Additional gas for P256 signature verification P256 precompile cost (6900 from EIP-7951) + 1100 for 129 bytes extra signature size - ecrecover savings (3000)

Functions

adjusted_initial_gas 🔒

Computes the adjusted initial gas for AA transaction execution.

calculate_aa_batch_intrinsic_gas

Calculates intrinsic gas for an AA transaction batch using revm helpers.

calculate_key_authorization_gas 🔒

Calculates the intrinsic gas cost for a KeyAuthorization.

check_gas_limit 🔒

Checks if gas limit is sufficient and returns OOG frame result if not.

get_token_balance

IMPORTANT: the caller must ensure token is a valid TIP20Token address.

oog_frame_result 🔒

Helper function to create a frame result for an out of gas error.

primitive_signature_verification_gas 🔒

Calculates the gas cost for verifying a primitive signature.

tempo_signature_verification_gas 🔒

Calculates the gas cost for verifying an AA signature.

validate_aa_initial_tx_gas 🔒

Validates and calculates initial transaction gas for AA transactions.

validate_time_window

Validates time window for AA transactions