Module storage_slot 

Constants

ADDRESS_TABLE_SUBSPACE

ARBOS_STATE_ADDRESS

ArbOS state storage address (NOT the ArbOS sender address 0xa4b05).

BLOCKHASHES_SUBSPACE

BROTLI_COMPRESSION_LEVEL_OFFSET

CACHE_MANAGERS_KEY

CACHE_MANAGERS_SUBSPACE

Cache managers subspace within ArbOS (PROGRAMS → CACHE_MANAGERS). Not a direct root subspace; derive at runtime via programs_cache_managers_key().

CHAIN_CONFIG_SUBSPACE

CHAIN_ID_OFFSET

CHAIN_OWNER_SUBSPACE

CURRENT_REDEEMER_OFFSET

Scratch slot for the current redeemer (refund_to address) during retry tx. Written by the executor before retry tx EVM execution so GetCurrentRedeemer can return the correct address.

CURRENT_RETRYABLE_OFFSET

Scratch slot for the currently-executing retryable ticket ID. Written by the executor before retry tx EVM execution so the Redeem precompile can reject self-modification attempts. Zero means no retryable is executing.

CURRENT_TX_POSTER_FEE_OFFSET

Scratch slot used to pass per-transaction L1 poster fee from the executor into the EVM where the ArbGasInfo precompile can read it. The value is written before EVM execution and has no long-term significance — it’s overwritten every transaction.

FEATURES_SUBSPACE

FILTERED_FUNDS_RECIPIENT_OFFSET

FILTERED_TX_STATE_ADDRESS

Filtered transactions backing storage account (separate from ArbOS state).

GENESIS_BLOCK_NUM_OFFSET

INFRA_FEE_ACCOUNT_OFFSET

L1_PRICING_SUBSPACE

Subspace keys for ArbOS partitioned storage (matching arbos_state constants).

L2_PRICING_SUBSPACE

NATIVE_TOKEN_ENABLED_FROM_TIME_OFFSET

NATIVE_TOKEN_SUBSPACE

NETWORK_FEE_ACCOUNT_OFFSET

PROGRAMS_DATA_KEY

PROGRAMS_PARAMS_KEY

Subspace keys within the PROGRAMS subspace.

PROGRAMS_SUBSPACE

RETRYABLES_SUBSPACE

ROOT_STORAGE_KEY

The root storage key for ArbOS state (empty, since base_key is B256::ZERO).

SEND_MERKLE_SUBSPACE

TRANSACTION_FILTERER_SUBSPACE

TX_FILTERING_ENABLED_FROM_TIME_OFFSET

UPGRADE_TIMESTAMP_OFFSET

UPGRADE_VERSION_OFFSET

VERSION_OFFSET

Root-level ArbOS state field offsets.

Functions

current_redeemer_slot

Compute the storage slot for the current redeemer address.

current_retryable_slot

Compute the storage slot for the current retryable ticket ID.

current_tx_poster_fee_slot

Compute the storage slot for the per-tx poster fee.

derive_subspace_key

Derive a subspace storage key from a parent key and child key bytes.

gas_constraints_vec_key

Gas constraints vector key.

l2_pricing_subspace

L2 pricing subspace key (root → L2_PRICING_SUBSPACE).

map_slot

Compute the EVM storage slot for an ArbOS field at a given offset within a storage scope defined by storage_key.

map_slot_b256

Compute the EVM storage slot for a B256 key within a storage scope.

multi_gas_base_fees_subspace

Multi-gas base fees subspace key.

multi_gas_constraints_vec_key

Multi-gas constraints vector key.

root_slot

Compute a root-level ArbOS state slot.

subspace_slot

Compute a slot within a subspace of the root ArbOS state.

vector_element_field

Slot for field offset within element index of a vector.

vector_element_key

Subspace key for element index within a vector.

vector_length_slot

Slot for the length of a sub-storage vector.