fixup! Add diagnostics to Declaration

Author: thomasmarshall

rust/rubydex/src/diagnostic.rs

@@ -2,7 +2,7 @@
 use crate::model::document::Document;
 use crate::{model::ids::UriId, offset::Offset};
 
-#[derive(Debug)]
+#[derive(Debug, Clone)]
 pub struct Diagnostic {
     rule: Rule,
     uri_id: UriId,

rust/rubydex/src/model/declaration.rs

@@ -127,6 +127,7 @@ macro_rules! namespace_declaration {
                 self.definition_ids.extend(other.definitions());
                 self.references.extend(other.references());
                 self.members.extend(other.members());
+                self.diagnostics.extend(other.diagnostics().iter().cloned());
             }
 
             pub fn set_singleton_class_id(&mut self, declaration_id: DeclarationId) {
@@ -228,6 +229,7 @@ macro_rules! simple_declaration {
             pub fn extend(&mut self, other: Declaration) {
                 self.definition_ids.extend(other.definitions());
                 self.references.extend(other.references());
+                self.diagnostics.extend(other.diagnostics().iter().cloned());
             }
         }
     };
@@ -393,6 +395,11 @@ impl Namespace {
         all_namespaces!(self, it => &it.members)
     }
 
+    #[must_use]
+    pub fn diagnostics(&self) -> &[Diagnostic] {
+        all_namespaces!(self, it => &it.diagnostics)
+    }
+
     /// # Panics
     ///
     /// Panics if the declaration is not a namespace or a constant