Support negation of temporal amount instances

ical4j · Jul 20, 2020 · 396df7d · 396df7d
1 parent d05140d
commit 396df7d
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/src/main/groovy/net/fortuna/ical4j/groovy/PeriodExtension.groovy b/src/main/groovy/net/fortuna/ical4j/groovy/PeriodExtension.groovy
@@ -34,6 +34,8 @@ package net.fortuna.ical4j.groovy
 import net.fortuna.ical4j.model.Period
 import net.fortuna.ical4j.model.PeriodList
 
+import java.time.Duration
+
 class PeriodExtension {
 	static Period plus(Period self, Period period) {
 		self.add(period)
@@ -42,4 +44,12 @@ class PeriodExtension {
 	static PeriodList minus(Period self, Period period) {
 		self.subtract(period)
 	}
+
+	static java.time.Period negative(java.time.Period self) {
+		self.negated()
+	}
+
+	static Duration negative(Duration self) {
+		self.negated()
+	}
 }