Function [Hash.symbol]

packages/effect/src/Duration.ts:353–366

(this: Duration)

const DurationProto: Omit<Duration, "value"> = {
  [TypeId]: TypeId,
  [Hash.symbol](this: Duration) {
    // Hash equal finite durations using the same canonical nanoseconds
    // representation used by `equals`.
    switch (this.value._tag) {
      case "Millis": {
        const nanos = this.value.millis * 1_000_000
        return Number.isFinite(nanos) ? Hash.hash(roundTiesAwayFromZero(nanos)) : Hash.number(this.value.millis)
      }
      case "Nanos":
        return Hash.hash(this.value.nanos)
      default:
        return Hash.structure(this.value)
    }
  },
  [Equal.symbol](this: Duration, that: unknown): boolean {
    return isDuration(that) && equals(this, that)
  },