1 files changed, 7 insertions, 1 deletions
diff --git a/askama_shared/src/input.rs b/askama_shared/src/input.rs
index 25d61e1..a679461 100644
--- a/askama_shared/src/input.rs
+++ b/askama_shared/src/input.rs
@@ -193,11 +193,17 @@ impl TemplateInput<'_> {
         })
     }
 
+    #[inline]
     pub fn extension(&self) -> Option<&str> {
-        self.ext.as_deref().or_else(|| extension(&self.path))
+        ext_default_to_path(self.ext.as_deref(), &self.path)
     }
 }
 
+#[inline]
+pub fn ext_default_to_path<'a>(ext: Option<&'a str>, path: &'a Path) -> Option<&'a str> {
+    ext.or_else(|| extension(path))
+}
+
 fn extension(path: &Path) -> Option<&str> {
     let ext = path.extension().map(|s| s.to_str().unwrap())?;