Do not crash on partial calc interpolation

Fixes #12151 Fixes regression introduced by #11924
servo · Jul 2, 2016 · f9a8fe0 · f9a8fe0
1 parent 1ed0677
commit f9a8fe0
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/components/style/properties/helpers/animated_properties.mako.rs b/components/style/properties/helpers/animated_properties.mako.rs
@@ -329,8 +329,8 @@ impl Interpolate for CalcLengthOrPercentage {
     #[inline]
     fn interpolate(&self, other: &Self, time: f64) -> Result<Self, ()> {
         Ok(CalcLengthOrPercentage {
-            length: try!(self.length.interpolate(&other.length, time)),
-            percentage: try!(self.percentage.interpolate(&other.percentage, time)),
+            length: self.length.interpolate(&other.length, time).ok().and_then(|x|x),
+            percentage: self.percentage.interpolate(&other.percentage, time).ok().and_then(|x|x),
         })
     }
 }