Struct InMemoryDataFeed 

pub struct InMemoryDataFeed { /* private fields */ }

A fully generic, dependency-free DataFeedAdapter: serves bars from an in-memory table. Useful for backtests, replay, and tests — not tied to any provider.

Implementations

impl InMemoryDataFeed

pub fn new() -> Self

pub fn load(&mut self, symbol: impl Into<String>, bars: Vec<Bar>)

Loads (replacing any existing) bars for symbol. Bars are assumed sorted ascending by timestamp.

Trait Implementations

impl Clone for InMemoryDataFeed

fn clone(&self) -> InMemoryDataFeed

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl DataFeedAdapter for InMemoryDataFeed

fn poll_live(&mut self) -> Result<Vec<Bar>, Self::Error>

“Live” bars for an in-memory feed are simply whatever was loaded beyond the cursor established at subscription time — a deterministic stand-in for a real push feed, useful for testing consumers of DataFeedAdapter without a network dependency.

type Error = String

fn fetch_historical( &mut self, symbol: &str, _timeframe: Timeframe, from: i64, to: i64, ) -> Result<Vec<Bar>, Self::Error>

Fetches historical bars for symbol at timeframe within [from, to] (Unix seconds).

fn subscribe_live( &mut self, symbol: &str, _timeframe: Timeframe, ) -> Result<(), Self::Error>

Registers interest in live updates for symbol/timeframe. A no-op for adapters that only ever serve historical data.

impl Debug for InMemoryDataFeed

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

Formats the value using the given formatter.

impl Default for InMemoryDataFeed

fn default() -> InMemoryDataFeed

Returns the “default value” for a type.