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LibJS: Start implementing Temporal.PlainYearMonth

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This commit adds the PlainYearMonth object itself, its constructor and
prototype (currently empty), and the CreateTemporalYearMonth and
ISOYearMonthWithinLimits abstract operations.
This commit is contained in:
Linus Groh 2021-08-07 22:40:32 +01:00
parent 5b12542d39
commit 0a8edd5ce7
12 changed files with 360 additions and 10 deletions
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28
Userland/Libraries/LibJS/Runtime/Temporal/PlainYearMonth.h
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@ -6,16 +6,40 @@
#pragma once
#include <LibJS/Runtime/Temporal/AbstractOperations.h>
#include <LibJS/Runtime/Value.h>
#include <LibJS/Runtime/Object.h>
namespace JS::Temporal {
class PlainYearMonth final : public Object {
JS_OBJECT(PlainYearMonth, Object);
public:
PlainYearMonth(i32 iso_year, u8 iso_month, u8 iso_day, Object& calendar, Object& prototype);
virtual ~PlainYearMonth() override = default;
[[nodiscard]] i32 iso_year() const { return m_iso_year; }
[[nodiscard]] u8 iso_month() const { return m_iso_month; }
[[nodiscard]] u8 iso_day() const { return m_iso_day; }
[[nodiscard]] Object const& calendar() const { return m_calendar; }
[[nodiscard]] Object& calendar() { return m_calendar; }
private:
virtual void visit_edges(Visitor&) override;
// 9.4 Properties of Temporal.PlainYearMonth Instances, https://tc39.es/proposal-temporal/#sec-properties-of-temporal-plainyearmonth-instances
i32 m_iso_year { 0 }; // [[ISOYear]]
u8 m_iso_month { 0 }; // [[ISOMonth]]
u8 m_iso_day { 0 }; // [[ISODay]]
Object& m_calendar; // [[Calendar]]
};
struct ISOYearMonth {
i32 year;
u8 month;
};
ISOYearMonth balance_iso_year_month(i32 year, i32 month);
bool iso_year_month_within_limits(i32 year, u8 month);
PlainYearMonth* create_temporal_year_month(GlobalObject&, i32 iso_year, u8 iso_month, Object& calendar, u8 reference_iso_day, FunctionObject* new_target = nullptr);
}