polars_ensure

crates/polars-plan/src/dsl/function_expr/ewm.rs

@@ -13,17 +13,14 @@ pub(super) fn ewm_mean_by(
         DataType::Datetime(_, Some(time_zone)) => Some(time_zone.as_str()),
         _ => None,
     };
-    if half_life.negative() {
-        polars_bail!(InvalidOperation: "half_life cannot be negative");
-    }
-    if !half_life.is_constant_duration(time_zone) {
-        polars_bail!(InvalidOperation: "expected `half_life` to be a constant duration \
+    polars_ensure!(!half_life.negative(), InvalidOperation: "half_life cannot be negative");
+    polars_ensure!(half_life.is_constant_duration(time_zone),
+        InvalidOperation: "expected `half_life` to be a constant duration \
         (i.e. one independent of differing month durations or of daylight savings time), got {}.\n\
         \n\
         You may want to try:\n\
         - using `'730h'` instead of `'1mo'`\n\
         - using `'24h'` instead of `'1d'` if your series is time-zone-aware", half_life);
-    }
     // `half_life` is a constant duration so we can safely use `duration_ns()`.
     let half_life = half_life.duration_ns();
     let values = &s[0];