reformat csv code

Author: lovasoa

src/render.rs

@@ -515,20 +515,19 @@ impl CsvBodyRenderer {
         }
 
         if let Some(obj) = data.as_object() {
-            self.writer
-                .write_record(self.columns.iter().map(|s| {
-                    let val = obj.get(s);
-                    if let Some(val) = val {
-                        if let Some(s) = val.as_str() {
-                            Cow::Borrowed(s.as_bytes())
-                        } else {
-                            Cow::Owned(val.to_string().into_bytes())
-                        }
-                    } else {
-                        Cow::Borrowed(&b""[..])
-                    }
-                }))
-                .await?;
+            let col2bytes = |s| {
+                let val = obj.get(s);
+                let Some(val) = val else {
+                    return Cow::Borrowed(&b""[..]);
+                };
+                if let Some(s) = val.as_str() {
+                    Cow::Borrowed(s.as_bytes())
+                } else {
+                    Cow::Owned(val.to_string().into_bytes())
+                }
+            };
+            let record = self.columns.iter().map(col2bytes);
+            self.writer.write_record(record).await?;
         }
 
         Ok(())