converting the parameters

src/renderer/parameters_context.rs

@@ -29,8 +29,8 @@ pub struct OwnedPath {
     pub keys: Vec<String>,
 }
 
-impl From<RValue<'_>> for OwnedRValue {
+impl From<&RValue<'_>> for OwnedRValue {
-    fn from(original: RValue<'_>) -> Self {
+    fn from(original: &RValue<'_>) -> Self {
         match original {
             RValue::RVString(text) => OwnedRValue::RVString(text.to_owned()),
             RValue::RVPath(path) => OwnedRValue::RVPath(OwnedPath {
@@ -42,6 +42,24 @@ impl From<RValue<'_>> for OwnedRValue {
 
 pub struct NewParametersContext {
     params: HashMap<String, OwnedRValue>,
+    breadcrumbs: Vec<Box<dyn ContextElement>>,
+}
+
+impl NewParametersContext {
+    pub fn new(
+        breadcrumbs: &Vec<&dyn ContextElement>,
+        params: &Vec<KVPair>,
+    ) -> NewParametersContext {
+        let owned_params: HashMap<String, OwnedRValue> = params
+            .iter()
+            .map(|kvpair| (kvpair.key.to_string(), OwnedRValue::from(&kvpair.value)))
+            .collect();
+
+        NewParametersContext {
+            params: owned_params,
+            breadcrumbs: Vec::new(),
+        }
+    }
 }
 
 #[derive(Clone, Debug)]