feat: add switzerland calendar

Author: 18AX

crates/RustQuant_time/src/calendar.rs

@@ -85,6 +85,8 @@ pub enum Market {
     UnitedKingdom,
     /// United States national calendar.
     UnitedStates,
+    /// Switzerland national calendar.
+    Switzerland,
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     // MARKETS / EXCHANGES
     // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -432,6 +434,7 @@ impl Calendar {
                 Market::Singapore => is_holiday_impl_singapore(date),
                 Market::UnitedKingdom => is_holiday_impl_united_kingdom(date),
                 Market::UnitedStates => is_holiday_impl_united_states(date),
+                Market::Switzerland => is_holiday_impl_switzerland(date),
                 // Special case markets:
                 Market::None => false,
                 Market::Weekends => false,

crates/RustQuant_time/src/countries/mod.rs

@@ -112,3 +112,7 @@ pub(crate) use united_kingdom::*;
 /// United States holidays and calendars.
 pub mod united_states;
 pub(crate) use united_states::*;
+
+/// Switzerland holidays and calendars.
+pub mod switzerland;
+pub(crate) use switzerland::*;

crates/RustQuant_time/src/countries/switzerland.rs

@@ -0,0 +1,152 @@
+use crate::utilities::unpack_date;
+use time::{Date, Month};
+
+pub(crate) fn is_holiday_impl_switzerland(date: Date) -> bool {
+    let (_, m, d, _, yd, em) = unpack_date(date, false);
+
+    is_new_year(m, d)
+        || is_berchtholdstag(m, d)
+        || is_good_friday(yd, em)
+        || is_easter_monday(yd, em)
+        || is_labour_day(m, d)
+        || is_ascension_day(yd, em)
+        || is_whit_monday(yd, em)
+        || is_national_holiday(m, d)
+        || is_christmas_eve(m, d)
+        || is_christmas_day(m, d)
+        || is_st_stephens_day(m, d)
+        || is_new_year_eve(m, d)
+}
+
+#[inline]
+fn is_new_year(month: Month, day: u8) -> bool {
+    month == Month::January && day == 1
+}
+
+#[inline]
+fn is_berchtholdstag(month: Month, day: u8) -> bool {
+    month == Month::January && day == 2
+}
+
+#[inline]
+fn is_good_friday(yd: u16, em: u16) -> bool {
+    yd == em - 3
+}
+
+#[inline]
+fn is_easter_monday(yd: u16, em: u16) -> bool {
+    yd == em
+}
+
+#[inline]
+fn is_labour_day(month: Month, day: u8) -> bool {
+    month == Month::May && day == 1
+}
+
+#[inline]
+fn is_ascension_day(yd: u16, em: u16) -> bool {
+    yd == em + 38
+}
+
+#[inline]
+fn is_whit_monday(yd: u16, em: u16) -> bool {
+    yd == em + 49
+}
+
+#[inline]
+fn is_national_holiday(month: Month, day: u8) -> bool {
+    month == Month::August && day == 1
+}
+
+#[inline]
+fn is_christmas_eve(month: Month, day: u8) -> bool {
+    month == Month::December && day == 24
+}
+
+#[inline]
+fn is_christmas_day(month: Month, day: u8) -> bool {
+    month == Month::December && day == 25
+}
+
+#[inline]
+fn is_st_stephens_day(month: Month, day: u8) -> bool {
+    month == Month::December && day == 26
+}
+
+#[inline]
+fn is_new_year_eve(month: Month, day: u8) -> bool {
+    month == Month::December && day == 31
+}
+
+#[cfg(test)]
+mod tests_switzerland {
+    use crate::{Calendar, Market};
+
+    const CALENDAR: Calendar = Calendar::new(Market::Switzerland);
+
+    #[test]
+    fn new_years_day_2025() {
+        let date = time::macros::date!(2025 - 01 - 01);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn whit_monday_2025() {
+        let date = time::macros::date!(2025 - 06 - 09);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn regular_day_2025() {
+        let date = time::macros::date!(2025 - 03 - 17);
+        assert!(CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn national_holiday_2025() {
+        let date = time::macros::date!(2025 - 08 - 01);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn good_friday_2025() {
+        let date = time::macros::date!(2025 - 04 - 18);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn berchtholdstag_2025() {
+        let date = time::macros::date!(2025 - 01 - 02);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn ascension_2025() {
+        let date = time::macros::date!(2025 - 05 - 29);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn christmas_2025() {
+        let date = time::macros::date!(2025 - 12 - 25);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn st_stephens_day_2025() {
+        let date = time::macros::date!(2025 - 12 - 26);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn new_years_eve_2025() {
+        let date = time::macros::date!(2025 - 12 - 31);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+
+    #[test]
+    fn christmas_eve_2025() {
+        let date = time::macros::date!(2025 - 12 - 24);
+        assert!(!CALENDAR.is_business_day(date));
+    }
+}