Will Anderson
ed564b6dda
Phase 1.5 of time-system. Calendar is pluggable: EarthCalendar (IANA zones, DST, Gregorian) is the default; MarsCalendar, CycleCalendar(period), NoCycleCalendar handle non-Earth cases. Rhythm abstracts recurrence from clock units - rhythm_cycle_phase(0.5) means "midpoint of cycle" whether the cycle is 24 hours on Earth or 30 hours on a station or 300 years on a long-cycle world. Phase 1 (Instant + Duration) unchanged. EarthCalendar(zone_local()) is the user-facing default; nobody who doesn't care about non-Earth calendars sees the abstraction. Self-host fixed point holds at 6339 lines. Snapshot tagged at dist/platform/elc.20260502-1321-self-host. Phase 2 (scheduling primitives every/after/at) lands next, now with Calendar-aware grounding instead of Earth-time hardcoded. Backlog: bl-297f66d8 (supersedes bl-b29b3e60)
21 lines
699 B
EmacsLisp
21 lines
699 B
EmacsLisp
// cycle-30hr.el — CycleCalendar with a 30-hour period.
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// Two CalendarTimes 15 hours apart should have cycle_phase differ by 0.5.
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// We compare phases via float subtraction with format_float for determinism.
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fn run_test() -> String {
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let period: Duration = 30.hours
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let cal: Calendar = cycle_calendar(period)
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let base: Instant = unix_seconds(0)
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let later: Instant = base + 15.hours
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let ct1: CalendarTime = in_calendar(base, cal)
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let ct2: CalendarTime = in_calendar(later, cal)
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let p1: Float = cal_cycle_phase(ct1)
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let p2: Float = cal_cycle_phase(ct2)
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let diff: Float = p2 - p1
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return format_float(diff, 1)
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}
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fn main() -> Void {
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println(run_test())
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}
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