Struct ChainlinkOcr2StorageAdapter 

pub struct ChainlinkOcr2StorageAdapter;

Verified direct-storage adapter for Chainlink OCR2 aggregators.

This adapter targets the AccessControlledOCR2Aggregator 1.0.0 storage layout:

• s_hotVars at slot 11, with latestAggregatorRoundId packed at byte offset 6 and latestEpochAndRound packed at byte offset 1.
• s_transmissions at slot 12, keyed by the aggregator-local uint32 round id.

The adapter is enabled by registration-time layout detection. If the packed hot-vars slot is cold in StateView, the adapter declines the event and the caller should fall back to purge/refetch.

Implementations

impl ChainlinkOcr2StorageAdapter

pub fn new() -> Self

Create an OCR2 storage adapter.

pub fn hot_vars_slot() -> U256

Storage slot for OCR2 s_hotVars.

pub fn latest_aggregator_round_id_mask() -> U256

Mask selecting the packed s_hotVars.latestAggregatorRoundId field.

pub fn latest_epoch_and_round_mask() -> U256

Mask selecting the packed s_hotVars.latestEpochAndRound field.

pub fn latest_aggregator_round_id_value(round_id: u32) -> U256

Masked value for s_hotVars.latestAggregatorRoundId.

pub fn latest_epoch_and_round_value( epoch_and_round: u64, ) -> Result<U256, OracleStorageError>

Masked value for s_hotVars.latestEpochAndRound.

pub fn transmission_slot(round_id: u32) -> U256

Mapping slot for OCR2 s_transmissions[round_id].

pub fn pack_transmission_from_event( answer: I256, updated_at: u64, ) -> Result<U256, OracleStorageError>

Pack OCR2 transmission from a legacy AnswerUpdated timestamp.

AnswerUpdated exposes one timestamp, so this compatibility path can only seed startedAt and updatedAt with the same value. The preferred OCR2 path is NewTransmission, which carries both timestamps.

pub fn pack_transmission( answer: I256, observations_timestamp: u32, transmission_timestamp: u32, ) -> Result<U256, OracleStorageError>

Pack an OCR2 transmission word with explicit observation/transmission timestamps.

Trait Implementations

impl Clone for ChainlinkOcr2StorageAdapter

fn clone(&self) -> ChainlinkOcr2StorageAdapter

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChainlinkOcr2StorageAdapter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ChainlinkOcr2StorageAdapter

fn default() -> ChainlinkOcr2StorageAdapter

Returns the “default value” for a type.

impl OracleStorageAdapter for ChainlinkOcr2StorageAdapter

fn name(&self) -> &'static str

Stable adapter name for diagnostics.

fn warm_slots_for_registration( &self, registration: &FeedRegistration, ) -> Vec<(Address, U256)>

Storage slots that should be warmed before live event handling.

fn state_updates_for_answer( &self, registration: &FeedRegistration, update: &OraclePriceUpdate, state: &dyn StateView, ) -> Result<Option<Vec<StateUpdate>>, OracleStorageError>

Produce direct state updates for a detected oracle layout.

fn state_updates_for_ocr2_transmission( &self, registration: &FeedRegistration, update: &Ocr2TransmissionStorageUpdate, state: &dyn StateView, ) -> Result<Option<Vec<StateUpdate>>, OracleStorageError>

Produce direct state updates for a detected OCR2 NewTransmission event.

fn prefers_ocr2_new_transmission(&self, registration: &FeedRegistration) -> bool

Return true when this adapter wants OCR2 NewTransmission as the primary event.

fn state_updates_for_ocr1_transmission( &self, _registration: &FeedRegistration, _update: &Ocr1TransmissionStorageUpdate, _state: &dyn StateView, ) -> Result<Option<Vec<StateUpdate>>, OracleStorageError>

Produce direct state updates for a detected OCR1 NewTransmission event.

fn prefers_ocr1_new_transmission( &self, _registration: &FeedRegistration, ) -> bool

Return true when this adapter wants OCR1 NewTransmission as the primary event.