From 13cacbe7794ac4cc2083e6fdfbbf405d4bdc2c16 Mon Sep 17 00:00:00 2001
From: Manish Goregaokar <manishsmail@gmail.com>
Date: Mon, 22 Dec 2025 14:56:38 -0800
Subject: [PATCH] Move more of Duration over to NonZeroSign

---
 src/builtins/core/duration/normalized.rs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/builtins/core/duration/normalized.rs b/src/builtins/core/duration/normalized.rs
index 7e8a472cd..5d020f560 100644
--- a/src/builtins/core/duration/normalized.rs
+++ b/src/builtins/core/duration/normalized.rs
@@ -371,13 +371,14 @@ impl InternalDurationRecord {
         self.norm
     }
 
-    pub(crate) fn sign(&self) -> Sign {
+    pub(crate) fn sign(&self) -> NonZeroSign {
         let date_sign = self.date.sign();
         if date_sign == Sign::Zero {
             self.norm.sign()
         } else {
             date_sign
         }
+        .to_nonzero_sign()
     }
 }
 
@@ -1291,7 +1292,7 @@ impl InternalDurationRecord {
             || (time_zone.is_some() && options.smallest_unit == Unit::Day);
 
         // 4. If InternalDurationSign(duration) < 0, let sign be -1; else let sign be 1.
-        let sign = duration.sign().to_nonzero_sign();
+        let sign = duration.sign();
 
         // 5. If irregularLengthUnit is true, then
         let nudge_result = if irregular_length_unit {
@@ -1351,7 +1352,7 @@ impl InternalDurationRecord {
         // 1. If IsCalendarUnit(unit) is true, or timeZone is not unset and unit is day, then
         if unit.is_calendar_unit() || (time_zone.is_some() && unit == Unit::Day) {
             // a. If InternalDurationSign(duration) < 0, let sign be -1; else let sign be 1
-            let sign = self.sign().to_nonzero_sign();
+            let sign = self.sign();
             // b. Let record be ? NudgeToCalendarUnit(sign, duration, destEpochNs, isoDateTime, timeZone, calendar, 1, unit, trunc).
             // c. Return record.[[Total]].
             return self.nudge_calendar_unit_total(