1 files changed, 27 insertions, 0 deletions
diff --git a/cli/lsp/documents.rs b/cli/lsp/documents.rs
index 955ca1c78..4cda1f048 100644
--- a/cli/lsp/documents.rs
+++ b/cli/lsp/documents.rs
@@ -2,6 +2,7 @@
 
 use super::analysis;
 use super::text::LineIndex;
+use super::tsc::NavigationTree;
 
 use crate::import_map::ImportMap;
 use crate::media_type::MediaType;
@@ -33,6 +34,7 @@ impl IndexValid {
 pub struct DocumentData {
   bytes: Option<Vec<u8>>,
   line_index: Option<LineIndex>,
+  navigation_tree: Option<NavigationTree>,
   dependencies: Option<HashMap<String, analysis::Dependency>>,
   version: Option<i32>,
 }
@@ -72,6 +74,7 @@ impl DocumentData {
     } else {
       Some(LineIndex::new(&content))
     };
+    self.navigation_tree = None;
     Ok(())
   }
 
@@ -187,6 +190,14 @@ impl DocumentCache {
     doc.line_index.clone()
   }
 
+  pub fn navigation_tree(
+    &self,
+    specifier: &ModuleSpecifier,
+  ) -> Option<NavigationTree> {
+    let doc = self.docs.get(specifier)?;
+    doc.navigation_tree.clone()
+  }
+
   pub fn open(
     &mut self,
     specifier: ModuleSpecifier,
@@ -218,6 +229,22 @@ impl DocumentCache {
       .collect()
   }
 
+  pub fn set_navigation_tree(
+    &mut self,
+    specifier: &ModuleSpecifier,
+    navigation_tree: NavigationTree,
+  ) -> Result<(), AnyError> {
+    if let Some(mut doc) = self.docs.get_mut(specifier) {
+      doc.navigation_tree = Some(navigation_tree);
+      Ok(())
+    } else {
+      Err(custom_error(
+        "NotFound",
+        "The document \"{}\" was unexpectedly missing.",
+      ))
+    }
+  }
+
   pub fn version(&self, specifier: &ModuleSpecifier) -> Option<i32> {
     self.docs.get(specifier).and_then(|doc| doc.version)
   }