Function eval_query

nodedb/src/control/promql/evaluator/mod.rs:207–216

(query: &str, series: Vec<Series>, ts: i64)

    use crate::control::promql::parser;

    fn eval_query(query: &str, series: Vec<Series>, ts: i64) -> Value {
        let tokens = tokenize(query).unwrap();
        let expr = parser::parse(&tokens).unwrap();
        let ctx = EvalContext {
            series,
            timestamp_ms: ts,
            lookback_ms: DEFAULT_LOOKBACK_MS,
        };
        evaluate_instant(&ctx, &expr).unwrap()
    }

    fn make_series(name: &str, labels: &[(&str, &str)], samples: &[(i64, f64)]) -> Series {
        let mut l = Labels::new();