Reject PlainYearMonth with different calendar in comparison

fabon-f · fabon-f · commit 197c7c9e2507 · 2024-10-10T13:55:44.000+09:00
diff --git a/src/datetime/_compare.ts b/src/datetime/_compare.ts
@@ -56,6 +56,9 @@ export function compare(a: ComparableDateTimeType, b: ComparableDateTimeType) {
 		return getConstructor(a).compare(a, b);
 	}
 	if (isPlainYearMonth(a) && isPlainYearMonth(b)) {
+		if (a.calendarId !== b.calendarId) {
+			throw new Error("Can't compare PlainYearMonth with different calendar");
+		}
 		return getConstructor(a).compare(a, b);
 	}
 	if (isPlainMonthDay(a) || isPlainMonthDay(b)) {

Original file line number	Diff line number	Diff line change
`@@ -56,6 +56,9 @@ export function compare(a: ComparableDateTimeType, b: ComparableDateTimeType) {`
`56`	`56`	`return getConstructor(a).compare(a, b);`
`57`	`57`	`}`
`58`	`58`	`if (isPlainYearMonth(a) && isPlainYearMonth(b)) {`
	`59`	`+ if (a.calendarId !== b.calendarId) {`
	`60`	`+ throw new Error("Can't compare PlainYearMonth with different calendar");`
	`61`	`+ }`
`59`	`62`	`return getConstructor(a).compare(a, b);`
`60`	`63`	`}`
`61`	`64`	`if (isPlainMonthDay(a) \|\| isPlainMonthDay(b)) {`