diff --git a/kclvm/sema/src/resolver/global.rs b/kclvm/sema/src/resolver/global.rs
index 240a90f14..edde5f235 100644
--- a/kclvm/sema/src/resolver/global.rs
+++ b/kclvm/sema/src/resolver/global.rs
@@ -9,7 +9,6 @@ use crate::ty::{
 };
 use indexmap::IndexMap;
 use kclvm_ast::ast;
-use kclvm_ast::walker::MutSelfTypedResultWalker;
 use kclvm_ast_pretty::{print_ast_node, print_schema_expr, ASTNode};
 use kclvm_error::*;
 
diff --git a/kclvm/tools/src/LSP/src/find_refs.rs b/kclvm/tools/src/LSP/src/find_refs.rs
index 38e2db1ad..a2bd06b1a 100644
--- a/kclvm/tools/src/LSP/src/find_refs.rs
+++ b/kclvm/tools/src/LSP/src/find_refs.rs
@@ -16,9 +16,6 @@ pub(crate) fn find_refs<F: Fn(String) -> Result<(), anyhow::Error>>(
     cursor_path: String,
     logger: F,
 ) -> anyhow::Result<Option<Vec<Location>>> {
-    // todo: decide the scope by the workspace root and the kcl.mod both, use the narrower scope
-    // todo: should use the current file path
-
     let mut ref_locations = vec![];
 
     for (_, word_index) in word_index_map {
diff --git a/kclvm/tools/src/LSP/src/main.rs b/kclvm/tools/src/LSP/src/main.rs
index 62e576694..501bee468 100644
--- a/kclvm/tools/src/LSP/src/main.rs
+++ b/kclvm/tools/src/LSP/src/main.rs
@@ -1,7 +1,6 @@
 use crate::main_loop::main_loop;
 use config::Config;
 use main_loop::app;
-use std::collections::HashMap;
 
 mod analysis;
 mod capabilities;
diff --git a/kclvm/tools/src/LSP/src/notification.rs b/kclvm/tools/src/LSP/src/notification.rs
index a4a279ec3..3830968ad 100644
--- a/kclvm/tools/src/LSP/src/notification.rs
+++ b/kclvm/tools/src/LSP/src/notification.rs
@@ -101,23 +101,6 @@ impl LanguageServerState {
                 word_index_add(value, new_word_index.clone());
             }
         }
-        // let root = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
-        // let url = lsp_types::Url::from_file_path(root.clone()).unwrap();
-        // let mm = self.word_index_map.get(&url).unwrap();
-        // println!("word_index_map: {:?}", mm);
-
-        // let file = from_lsp::file_path_from_url(&text_document.uri)?;
-        // let old_word_index = build_word_index_for_file_content(old_text, &text_document.uri);
-        // let new_word_index = build_word_index_for_file_content(text.clone(), &text_document.uri);
-
-        // let file_path = Path::new(&text_document.uri.path());
-        // for (key, mut value) in &self.word_index_map {
-        //     let workspace_folder_path = Path::new(key.path());
-        //     if file_path.starts_with(workspace_folder_path) {
-        //         value = &word_index_subtract(value, old_word_index.clone());
-        //         value = &word_index_add(value, new_word_index.clone());
-        //     }
-        // }
 
         Ok(())
     }