Fixing lint warnings

src/optimize.rs

@@ -566,7 +566,7 @@ pub(crate) fn optimize<'a>(statements: Vec<Stmt>, engine: &Engine<'a>, scope: &S
 
     // Add back the last statement unless it is a lone No-op
     if let Some(stmt) = last_stmt {
-        if result.len() > 0 || !matches!(stmt, Stmt::Noop(_)) {
+        if !result.is_empty() || !matches!(stmt, Stmt::Noop(_)) {
             result.push(stmt);
         }
     }