diff --git a/rsjsonnet-lang/src/program/data.rs b/rsjsonnet-lang/src/program/data.rs
index cdf7685..38178a0 100644
--- a/rsjsonnet-lang/src/program/data.rs
+++ b/rsjsonnet-lang/src/program/data.rs
@@ -500,6 +500,15 @@ impl<'p> ObjectData<'p> {
         })
     }
 
+    #[inline]
+    pub(super) fn get_visible_fields_order(
+        &self,
+    ) -> impl DoubleEndedIterator<Item = InternedStr<'p>> + '_ {
+        self.get_fields_order()
+            .iter()
+            .filter_map(|&(name, visible)| visible.then_some(name))
+    }
+
     pub(super) fn field_is_visible(&self, name: InternedStr<'p>) -> bool {
         if let Some(field) = self.self_layer.fields.get(&name) {
             match field.visibility {
diff --git a/rsjsonnet-lang/src/program/eval/manifest.rs b/rsjsonnet-lang/src/program/eval/manifest.rs
index 03e615f..cc3653d 100644
--- a/rsjsonnet-lang/src/program/eval/manifest.rs
+++ b/rsjsonnet-lang/src/program/eval/manifest.rs
@@ -60,12 +60,8 @@ impl<'p> Evaluator<'_, 'p> {
         };
         let object = object.view();
 
-        let visible_fields: Vec<_> = object
-            .get_fields_order()
-            .iter()
-            .filter_map(|&(name, visible)| visible.then_some(name))
-            .collect();
-        for &field_name in visible_fields.iter().rev() {
+        let visible_fields = object.get_visible_fields_order();
+        for field_name in visible_fields.rev() {
             let field_thunk = self
                 .program
                 .find_object_field_thunk(&object, 0, field_name)
@@ -141,11 +137,7 @@ impl<'p> Evaluator<'_, 'p> {
             }
             ValueData::Object(object) => {
                 let object = object.view();
-                let visible_fields: Vec<_> = object
-                    .get_fields_order()
-                    .iter()
-                    .filter_map(|&(name, visible)| visible.then_some(name))
-                    .collect();
+                let visible_fields: Vec<_> = object.get_visible_fields_order().collect();
                 if visible_fields.is_empty() {
                     result.push_str("{}");
                 } else {
@@ -253,11 +245,7 @@ impl<'p> Evaluator<'_, 'p> {
             }
             ValueData::Object(object) => {
                 let object = object.view();
-                let visible_fields: Vec<_> = object
-                    .get_fields_order()
-                    .iter()
-                    .filter_map(|&(name, visible)| visible.then_some(name))
-                    .collect();
+                let visible_fields: Vec<_> = object.get_visible_fields_order().collect();
                 if visible_fields.is_empty() {
                     if let Some(ref empty_object) = format.empty_object {
                         result.push_str(empty_object);
@@ -427,11 +415,7 @@ impl<'p> Evaluator<'_, 'p> {
             }
             ValueData::Object(object) => {
                 let object = object.view();
-                let visible_fields: Vec<_> = object
-                    .get_fields_order()
-                    .iter()
-                    .filter_map(|&(name, visible)| visible.then_some(name))
-                    .collect();
+                let visible_fields: Vec<_> = object.get_visible_fields_order().collect();
                 if visible_fields.is_empty() {
                     if parent_is_array || parent_is_object {
                         result.push(' ');
@@ -538,12 +522,8 @@ impl<'p> Evaluator<'_, 'p> {
             indent,
         });
 
-        let visible_fields: Vec<_> = object
-            .get_fields_order()
-            .iter()
-            .filter_map(|&(name, visible)| visible.then_some(name))
-            .collect();
-        for &field_name in visible_fields.iter().rev() {
+        let visible_fields = object.get_visible_fields_order();
+        for field_name in visible_fields.rev() {
             let field_thunk = self
                 .program
                 .find_object_field_thunk(&object, 0, field_name)
@@ -563,10 +543,8 @@ impl<'p> Evaluator<'_, 'p> {
         indent: Rc<str>,
     ) {
         let visible_fields: Vec<_> = object
-            .get_fields_order()
-            .iter()
-            .filter(|&&(_, visible)| visible)
-            .map(|&(name, _)| {
+            .get_visible_fields_order()
+            .map(|name| {
                 // Check if the field is an object or an array of objects
                 let (_, field) = object.find_field(0, name).unwrap();
                 let field_value = field.thunk.get().unwrap().view().get_value().unwrap();
@@ -785,11 +763,7 @@ impl<'p> Evaluator<'_, 'p> {
             }
             ValueData::Object(object) => {
                 let object = object.view();
-                let visible_fields: Vec<_> = object
-                    .get_fields_order()
-                    .iter()
-                    .filter_map(|&(name, visible)| visible.then_some(name))
-                    .collect();
+                let visible_fields: Vec<_> = object.get_visible_fields_order().collect();
                 if visible_fields.is_empty() {
                     result.push_str("{  }");
                 } else {
diff --git a/rsjsonnet-lang/src/program/eval/mod.rs b/rsjsonnet-lang/src/program/eval/mod.rs
index 3f13c1d..5410a0f 100644
--- a/rsjsonnet-lang/src/program/eval/mod.rs
+++ b/rsjsonnet-lang/src/program/eval/mod.rs
@@ -997,20 +997,8 @@ impl<'p, 'a> Evaluator<'a, 'p> {
                         (ValueData::Object(lhs), ValueData::Object(rhs)) => {
                             let lhs = lhs.view();
                             let rhs = rhs.view();
-                            let lhs_fields: Vec<_> = lhs
-                                .get_fields_order()
-                                .iter()
-                                .rev()
-                                .filter_map(|(name, visible)| visible.then_some(name))
-                                .cloned()
-                                .collect();
-                            let rhs_fields: Vec<_> = rhs
-                                .get_fields_order()
-                                .iter()
-                                .rev()
-                                .filter_map(|(name, visible)| visible.then_some(name))
-                                .cloned()
-                                .collect();
+                            let lhs_fields: Vec<_> = lhs.get_visible_fields_order().rev().collect();
+                            let rhs_fields: Vec<_> = rhs.get_visible_fields_order().rev().collect();
 
                             if lhs_fields == rhs_fields {
                                 let mut fields = lhs_fields;
diff --git a/rsjsonnet-lang/src/program/eval/stdlib.rs b/rsjsonnet-lang/src/program/eval/stdlib.rs
index c4c553f..5a424be 100644
--- a/rsjsonnet-lang/src/program/eval/stdlib.rs
+++ b/rsjsonnet-lang/src/program/eval/stdlib.rs
@@ -88,11 +88,7 @@ impl<'p> Evaluator<'_, 'p> {
             ValueData::Array(array) => array.view().len(),
             ValueData::Object(object) => {
                 let object = object.view();
-                object
-                    .get_fields_order()
-                    .iter()
-                    .filter_map(|(name, visible)| visible.then_some(name))
-                    .count()
+                object.get_visible_fields_order().count()
             }
             ValueData::Function(func) => func.view().params.order.len(),
             _ => {
@@ -129,10 +125,7 @@ impl<'p> Evaluator<'_, 'p> {
             }
             ValueData::Object(object) => {
                 let object = object.view();
-                let visible_fields = object
-                    .get_fields_order()
-                    .iter()
-                    .filter_map(|&(name, visible)| visible.then_some(name));
+                let visible_fields = object.get_visible_fields_order();
 
                 self.object_stack
                     .push(ObjectData::new_simple(FHashMap::default()));
@@ -1043,12 +1036,8 @@ impl<'p> Evaluator<'_, 'p> {
         };
         let object = object.view();
 
-        let visible_fields: Vec<_> = object
-            .get_fields_order()
-            .iter()
-            .filter_map(|&(name, visible)| visible.then_some(name))
-            .collect();
-        for &field_name in visible_fields.iter().rev() {
+        let visible_fields = object.get_visible_fields_order();
+        for field_name in visible_fields.rev() {
             let field_thunk = self
                 .program
                 .find_object_field_thunk(&object, 0, field_name)
@@ -1078,13 +1067,9 @@ impl<'p> Evaluator<'_, 'p> {
         self.string_stack.push(String::new());
         self.state_stack.push(State::StringToValue);
 
-        let visible_fields: Vec<_> = object
-            .get_fields_order()
-            .iter()
-            .filter_map(|&(name, visible)| visible.then_some(name))
-            .collect();
+        let visible_fields = object.get_visible_fields_order();
 
-        for &field_name in visible_fields.iter().rev() {
+        for field_name in visible_fields.rev() {
             self.state_stack.push(State::AppendToString('\n'.into()));
 
             self.push_trace_item(TraceItem::ManifestObjectField { name: field_name });
@@ -1271,13 +1256,9 @@ impl<'p> Evaluator<'_, 'p> {
                 self.state_stack.push(State::AppendToString('>'.into()));
 
                 let object = object.view();
-                let visible_fields: Vec<_> = object
-                    .get_fields_order()
-                    .iter()
-                    .filter_map(|&(name, visible)| visible.then_some(name))
-                    .collect();
+                let visible_fields = object.get_visible_fields_order();
 
-                for &field_name in visible_fields.iter().rev() {
+                for field_name in visible_fields.rev() {
                     let field_thunk = self
                         .program
                         .find_object_field_thunk(&object, 0, field_name)