diff --git a/.gitmodules b/.gitmodules
index e6a1deb..c21b6dc 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,6 @@
 [submodule "sv-parser"]
 	path = sv-parser
 	url = https://github.com/Digital-EDA/sv-parser
-[submodule "rust_hdl"]
-	path = rust_hdl
-	url = https://github.com/Digital-EDA/rust_hdl
+[submodule "vhdl-parser"]
+	path = vhdl-parser
+	url = https://github.com/Digital-EDA/vhdl-parser
diff --git a/Cargo.toml b/Cargo.toml
index 06f1401..3402eb3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 sv-parser = { version = "0.13.3", path = "sv-parser/sv-parser"}
-vhdl_lang = { version = "^0.83.0", path = "rust_hdl/vhdl_lang" }
+vhdl_lang = { version = "^0.83.0", path = "vhdl-parser/vhdl_lang" }
 dirs-next = "2.0"
 bincode = "1.3"
 percent-encoding = "2.1.0"
diff --git a/rust_hdl b/rust_hdl
deleted file mode 160000
index 69fba9a..0000000
--- a/rust_hdl
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 69fba9af8cb981ce1aaeacd20ca74771f12d9aa1
diff --git a/src/completion/mod.rs b/src/completion/mod.rs
index 95ebbe3..6f5ee52 100644
--- a/src/completion/mod.rs
+++ b/src/completion/mod.rs
@@ -11,8 +11,16 @@ impl LSPServer {
     pub fn completion(&self, params: CompletionParams) -> Option<CompletionResponse> {        
         let language_id = get_language_id_by_uri(&params.text_document_position.text_document.uri);
         match language_id.as_str() {
-            "vhdl" => vhdl::completion(self, &params),
-            "verilog" | "systemverilog" => sv::completion(self, &params),
+            "vhdl" => vhdl::completion(
+                self,
+                &params
+            ),
+
+            "verilog" | "systemverilog" => sv::completion(
+                self,
+                &params
+            ),
+            
             _ => None
         }
     }
diff --git a/src/core/cache_storage.rs b/src/core/cache_storage.rs
index 4636c70..419b578 100644
--- a/src/core/cache_storage.rs
+++ b/src/core/cache_storage.rs
@@ -1,5 +1,4 @@
-use core::hash;
-use std::{borrow::{Borrow, Cow}, collections::HashMap, fs::{self}, hash::{DefaultHasher, Hash, Hasher}, os::unix::thread, path::PathBuf, sync::{Arc, RwLock}};
+use std::{collections::HashMap, fs::{self}, hash::{DefaultHasher, Hash, Hasher}, path::PathBuf, sync::{Arc, RwLock}};
 
 use log::info;
 use serde::{Deserialize, Serialize};
@@ -11,10 +10,7 @@ use super::hdlparam::FastHdlparam;
 pub enum CacheResult<T> {
     Ok(T),
     NotNeedCache,
-    CacheNotFound,
-    NotHit,
-    FailDeserialize,
-    Error(String)    
+    CacheNotFound
 }
 
 #[derive(Debug, Serialize, Deserialize, Clone)]
@@ -139,10 +135,10 @@ impl CacheManager {
         
         std::thread::spawn(move || {
             info!("save meta to {meta_save_path:?}");
-            k_serialize(&meta_save_path, meta);
+            let _ = k_serialize(&meta_save_path, meta);
 
             info!("save index to {cache_save_path:?}");
-            k_serialize(&cache_save_path, fast);
+            let _ = k_serialize(&cache_save_path, fast);
         });
     }
 
diff --git a/src/core/sv_parser.rs b/src/core/sv_parser.rs
index 9ca74b0..00518cc 100644
--- a/src/core/sv_parser.rs
+++ b/src/core/sv_parser.rs
@@ -28,7 +28,7 @@ pub fn sv_parser(path: &str) -> Option<FastHdlparam> {
     let uri = Url::from_file_path(&path).unwrap();
     let result = recovery_sv_parse(&doc, &uri, &None, &includes);
 
-    println!("result: {result:?}");
+    // println!("result: {result:?}");
     
     if let Some(syntax_tree) = result {
         if let Ok(hdlparam) = make_fast_from_syntaxtree(&syntax_tree, &path) {
diff --git a/src/definition/mod.rs b/src/definition/mod.rs
index f6583ef..161a866 100644
--- a/src/definition/mod.rs
+++ b/src/definition/mod.rs
@@ -10,7 +10,6 @@ pub mod def_types;
 pub use def_types::*;
 
 pub mod feature;
-pub use feature::*;
 
 pub mod extract_defs;
 pub use extract_defs::*;
@@ -22,8 +21,16 @@ impl LSPServer {
     pub fn goto_definition(&self, params: GotoDefinitionParams) -> Option<GotoDefinitionResponse> {
         let language_id = get_language_id_by_uri(&params.text_document_position_params.text_document.uri);
         match language_id.as_str() {
-            "vhdl" => vhdl::goto_vhdl_definition(self, &params),
-            "verilog" | "systemverilog" => sv::goto_definition(self, &params),
+            "vhdl" => vhdl::goto_vhdl_definition(
+                self,
+                &params
+            ),
+
+            "verilog" | "systemverilog" => sv::goto_definition(
+                self,
+                &params
+            ),
+            
             _ => None
         }
     }
diff --git a/src/document_highlight/mod.rs b/src/document_highlight/mod.rs
index 1530789..a4b9fdf 100644
--- a/src/document_highlight/mod.rs
+++ b/src/document_highlight/mod.rs
@@ -1,11 +1,8 @@
-use crate::{definition::Scope, server::LSPServer, sources::{LSPSupport, ParseIR, Source}, utils::{get_definition_token, get_language_id_by_uri}};
-use log::info;
-use sv_parser::{RefNode, SyntaxTree};
-use vhdl::vhdl_document_highlight;
-use crate::definition::extract_defs::get_ident;
+use crate::{server::LSPServer, utils::{get_definition_token, get_language_id_by_uri}};
 use tower_lsp::lsp_types::*;
 
-pub mod vhdl;
+mod sv;
+mod vhdl;
 
 impl LSPServer {
     pub fn document_highlight(
@@ -24,8 +21,12 @@ impl LSPServer {
         let language_id = get_language_id_by_uri(&uri);
         
         match language_id.as_str() {
-            "vhdl" => vhdl_document_highlight(self, &params.text_document_position_params),
-            "verilog" | "systemverilog" => sv_document_highlight(
+            "vhdl" => vhdl::document_highlight(
+                self,
+                &params.text_document_position_params
+            ),
+            
+            "verilog" | "systemverilog" => sv::document_highlight(
                 self,
                 &token,
                 &file,
@@ -35,56 +36,4 @@ impl LSPServer {
             _ => None
         }
     }
-}
-
-fn sv_document_highlight(
-    server: &LSPServer,
-    token: &str,
-    file: &Source,
-    pos: Position,
-    uri: &Url
-) -> Option<Vec<DocumentHighlight>> {
-    let scope_tree = server.srcs.scope_tree.read().ok()?;
-
-    // use the byte_idx of the definition if possible, otherwise use the cursor
-    let byte_idx =
-        match scope_tree
-            .as_ref()?
-            .get_definition(token, file.text.pos_to_byte(&pos), uri)
-        {
-            Some(def) => def.byte_idx,
-            None => file.text.pos_to_byte(&pos),
-        };
-    let syntax_tree = file.parse_ir.as_ref()?;
-    match syntax_tree {
-        ParseIR::SyntaxTree(syntax_tree) => {
-            let references = all_identifiers(&syntax_tree, &token);
-            Some(
-                scope_tree
-                    .as_ref()?
-                    .document_highlights(&uri, &file.text, references, byte_idx),
-            )
-        },
-        _ => {
-            info!("error happen in [sv_document_highlight]");
-            None
-        }
-    }
-}
-
-
-
-/// return all identifiers in a syntax tree matching a given token
-fn all_identifiers(syntax_tree: &SyntaxTree, token: &str) -> Vec<(String, usize)> {
-    let mut idents: Vec<(String, usize)> = Vec::new();
-    for node in syntax_tree {
-        if let RefNode::Identifier(_) = node {
-            
-            let (ident, byte_idx) = get_ident(syntax_tree, node);
-            if ident == token {
-                idents.push((ident, byte_idx));
-            }
-        }
-    }
-    idents
 }
\ No newline at end of file
diff --git a/src/document_highlight/sv.rs b/src/document_highlight/sv.rs
new file mode 100644
index 0000000..999b938
--- /dev/null
+++ b/src/document_highlight/sv.rs
@@ -0,0 +1,58 @@
+#[allow(unused)]
+use log::info;
+use sv_parser::{RefNode, SyntaxTree};
+use tower_lsp::lsp_types::*;
+
+use crate::{definition::{get_ident, Scope}, server::LSPServer, sources::{LSPSupport, ParseIR, Source}};
+
+pub fn document_highlight(
+    server: &LSPServer,
+    token: &str,
+    file: &Source,
+    pos: Position,
+    uri: &Url
+) -> Option<Vec<DocumentHighlight>> {
+    let scope_tree = server.srcs.scope_tree.read().ok()?;
+
+    // use the byte_idx of the definition if possible, otherwise use the cursor
+    let byte_idx =
+        match scope_tree
+            .as_ref()?
+            .get_definition(token, file.text.pos_to_byte(&pos), uri)
+        {
+            Some(def) => def.byte_idx,
+            None => file.text.pos_to_byte(&pos),
+        };
+    let syntax_tree = file.parse_ir.as_ref()?;
+    match syntax_tree {
+        ParseIR::SyntaxTree(syntax_tree) => {
+            let references = all_identifiers(&syntax_tree, &token);
+            Some(
+                scope_tree
+                    .as_ref()?
+                    .document_highlights(&uri, &file.text, references, byte_idx),
+            )
+        },
+        _ => {
+            info!("error happen in [sv_document_highlight]");
+            None
+        }
+    }
+}
+
+
+
+/// return all identifiers in a syntax tree matching a given token
+fn all_identifiers(syntax_tree: &SyntaxTree, token: &str) -> Vec<(String, usize)> {
+    let mut idents: Vec<(String, usize)> = Vec::new();
+    for node in syntax_tree {
+        if let RefNode::Identifier(_) = node {
+            
+            let (ident, byte_idx) = get_ident(syntax_tree, node);
+            if ident == token {
+                idents.push((ident, byte_idx));
+            }
+        }
+    }
+    idents
+}
\ No newline at end of file
diff --git a/src/document_highlight/vhdl.rs b/src/document_highlight/vhdl.rs
index dba8828..48d75c1 100644
--- a/src/document_highlight/vhdl.rs
+++ b/src/document_highlight/vhdl.rs
@@ -5,7 +5,7 @@ use tower_lsp::lsp_types::*;
 
 use crate::{server::LSPServer, utils::{from_lsp_pos, to_escape_path, to_lsp_range}};
 
-pub fn vhdl_document_highlight(
+pub fn document_highlight(
     server: &LSPServer,
     params: &TextDocumentPositionParams
 ) -> Option<Vec<DocumentHighlight>> {
diff --git a/src/document_symbol/mod.rs b/src/document_symbol/mod.rs
index 8d20f8c..3f46f83 100644
--- a/src/document_symbol/mod.rs
+++ b/src/document_symbol/mod.rs
@@ -1,22 +1,24 @@
 use tower_lsp::lsp_types::*;
 
-use crate::{definition::Scope, server::LSPServer};
-pub mod vhdl;
+use crate::{server::LSPServer, utils::get_language_id_by_uri};
+
+mod sv;
+mod vhdl;
 
 impl LSPServer {
     pub fn document_symbol(&self, params: DocumentSymbolParams) -> Option<DocumentSymbolResponse> {
-        let uri = params.text_document.uri;
-        let file_id = self.srcs.get_id(&uri).to_owned();
-        self.srcs.wait_parse_ready(file_id, false);
-        let file = self.srcs.get_file(file_id)?;
-        let file = file.read().ok()?;
-        let scope_tree = self.srcs.scope_tree.read().ok()?;
-
-
-
-        Some(DocumentSymbolResponse::Nested(
-            scope_tree.as_ref()?.document_symbols(&uri, &file.text),
-        ))
+        let uri = &params.text_document.uri;
+        let language_id = get_language_id_by_uri(uri);
+        match language_id.as_str() {
+            "vhdl" => vhdl::document_symbol(
+                self,
+                &params
+            ),
+            "verilog" | "systemverilog" => sv::document_symbol(
+                self,
+                &params
+            ),
+            _ => None
+        }
     }
 }
-
diff --git a/src/document_symbol/sv.rs b/src/document_symbol/sv.rs
new file mode 100644
index 0000000..9bbae29
--- /dev/null
+++ b/src/document_symbol/sv.rs
@@ -0,0 +1,18 @@
+use crate::{definition::Scope, server::LSPServer};
+use tower_lsp::lsp_types::*;
+
+pub fn document_symbol(
+    server: &LSPServer,
+    params: &DocumentSymbolParams
+) -> Option<DocumentSymbolResponse> {
+    let uri = &params.text_document.uri;
+    let file_id = server.srcs.get_id(uri).to_owned();
+    server.srcs.wait_parse_ready(file_id, false);
+    let file = server.srcs.get_file(file_id)?;
+    let file = file.read().ok()?;
+    let scope_tree = server.srcs.scope_tree.read().ok()?;
+
+    Some(DocumentSymbolResponse::Nested(
+        scope_tree.as_ref()?.document_symbols(uri, &file.text),
+    ))
+}
\ No newline at end of file
diff --git a/src/document_symbol/vhdl.rs b/src/document_symbol/vhdl.rs
index 716c7e9..7f996cd 100644
--- a/src/document_symbol/vhdl.rs
+++ b/src/document_symbol/vhdl.rs
@@ -7,7 +7,7 @@ use std::path::PathBuf;
 use std::str::FromStr;
 use vhdl_lang::{EntHierarchy, Token};
 
-pub fn vhdl_document_symbol(server: &LSPServer, params: &DocumentSymbolParams) -> Option<DocumentSymbolResponse> {
+pub fn document_symbol(server: &LSPServer, params: &DocumentSymbolParams) -> Option<DocumentSymbolResponse> {
     let uri = &params.text_document.uri;
     let file_id = server.srcs.get_id(&uri).to_owned();
     server.srcs.wait_parse_ready(file_id, false);
diff --git a/src/hover/feature.rs b/src/hover/feature.rs
index b2dd1c0..4c93fd1 100644
--- a/src/hover/feature.rs
+++ b/src/hover/feature.rs
@@ -5,7 +5,7 @@ use regex::Regex;
 use ropey::RopeSlice;
 use tower_lsp::lsp_types::{Hover, HoverContents, LanguageString, MarkedString, Position, Range, Url};
 
-use crate::{core::hdlparam::{Define, FastHdlparam, Module}, definition::{DefinitionType, GenericDec}, server::LSPServer};
+use crate::{core::hdlparam::{Define, FastHdlparam}, definition::{DefinitionType, GenericDec}, server::LSPServer};
 
 use super::{get_word_range_at_position, resolve_path, to_escape_path};
 
@@ -343,28 +343,49 @@ pub fn hover_module_declaration(
     definition: &GenericDec,
     language_id: &str
 ) -> Option<Hover> {
-    // let module_info = match definition.def_type {
-    //     DefinitionType::GenericScope => {
-    //         let pathbuf = PathBuf::from_str(definition.url.path()).unwrap();
-    //         let path_string = to_escape_path(&pathbuf).to_str().unwrap();
-    //         let hdlparam = &server.srcs.hdl_param;
-    //         let mut result: Option<(Module, String)> = None;
+    let module_info = match definition.def_type {
+        DefinitionType::GenericScope => {
+            let pathbuf = PathBuf::from_str(definition.url.path()).unwrap();
+            let pathbuf = to_escape_path(&pathbuf);
+            let path_string = pathbuf.to_str().unwrap();
+
+            let hdlparam = &server.srcs.hdl_param;
+            let search_result = || {
+                if let Some(hdl_file) = hdlparam.path_to_hdl_file.read().unwrap().get(path_string) {
+                    for module in &hdl_file.fast.content {
+                        if module.name == definition.ident {
+                            return Some((module.clone(), path_string.to_string()));
+                        }
+                    }
+                }
+                
+                None
+            };
+            search_result()
+        }
+
+        _ => {
+            let search_result = || {
+                if let Some(module) = server.srcs.hdl_param.find_module_by_name(token_name) {
+                    let path_string = server.srcs.hdl_param.find_module_definition_path(&module.name).unwrap_or("unknown".to_string());
+                    return Some((module, path_string));
+                }
+                None
+            };
+            search_result()
+        }
+    };
+
+    if let Some((module, path_string)) = module_info {
+        let path_uri = Url::from_file_path(path_string.to_string()).unwrap().to_string();
+        let def_row = module.range.start.line;
+        let def_col = module.range.start.character;
+        let define_info = format!("Definition [{path_string}]({path_uri}#L{def_row}:{def_col})");
 
-    //         if let Some(hdl_file) = hdlparam.path_to_hdl_file.read().unwrap().get(path_string) {
-    //             for module in &hdl_file.fast.content {
-    //                 if module.name == definition.ident {
-    //                     return Some((module.clone(), path_string.to_string()))
-    //                 }
-    //             }
-    //         }
-    //         None
-    //     }
-    //     _ => None
-    // };
-    if let Some(module) = server.srcs.hdl_param.find_module_by_name(token_name) {
         let port_num = module.ports.len();
         let param_num = module.params.len();
         let instance_num = module.instances.len();
+
         let port_desc = format!("`port` {port_num}, `param` {param_num}, `instantiation` {instance_num}");
 
         // 统计 dir
@@ -382,9 +403,6 @@ pub fn hover_module_declaration(
         }
 
         let io_desc = format!("`input` {input_count}, `output` {output_count}, `inout` {inout_count}");
-        
-        let path_string = server.srcs.hdl_param.find_module_definition_path(&module.name).unwrap_or("unknown".to_string());
-        let define_info = format!("define in {path_string}");
 
         let mut markdowns = Vec::<MarkedString>::new();
         markdowns.push(MarkedString::String(port_desc));
diff --git a/src/hover/mod.rs b/src/hover/mod.rs
index ac20a77..47f4681 100644
--- a/src/hover/mod.rs
+++ b/src/hover/mod.rs
@@ -13,8 +13,16 @@ impl LSPServer {
     pub fn hover(&self, params: HoverParams) -> Option<Hover> {
         let language_id = get_language_id_by_uri(&params.text_document_position_params.text_document.uri);
         match language_id.as_str() {
-            "vhdl" => vhdl::hover(self, &params),
-            "verilog" | "systemverilog" => sv::hover(self, &params),
+            "vhdl" => vhdl::hover(
+                self,
+                &params
+            ),
+
+            "verilog" | "systemverilog" => sv::hover(
+                self,
+                &params
+            ),
+            
             _ => None
         }
     }
diff --git a/src/hover/sv.rs b/src/hover/sv.rs
index fc9d680..405bbb5 100644
--- a/src/hover/sv.rs
+++ b/src/hover/sv.rs
@@ -2,7 +2,7 @@ use log::info;
 use regex::Regex;
 use ropey::Rope;
 use tower_lsp::lsp_types::*;
-use crate::{core::hdlparam::{HdlFile, Instance, Module}, hover::{to_escape_path, BracketMatchResult, BracketMatcher}, server::LSPServer, sources::LSPSupport};
+use crate::{core::hdlparam::{Instance, Module}, hover::{to_escape_path, BracketMatchResult, BracketMatcher}, server::LSPServer, sources::LSPSupport};
 use super::feature::*;
 use std::{path::PathBuf, str::FromStr, sync::RwLockReadGuard};
 
diff --git a/src/sources.rs b/src/sources.rs
index 06a854d..50023ad 100644
--- a/src/sources.rs
+++ b/src/sources.rs
@@ -127,7 +127,7 @@ pub struct Source {
 }
 
 pub enum ParseIR {
-    /// 基于 rust_hdl 的IR，存放 VHDL
+    /// 基于 vhdl-parser 的IR，存放 VHDL
     #[allow(unused)]
     VHDLProject(vhdl_lang::Project),
     /// 存放 sv 的 IR
@@ -487,7 +487,7 @@ pub fn recovery_sv_parse(
                         let com_define = Define {
                             identifier: not_found_macro_name.to_string(),
                             arguments: Vec::new(),
-                            text: Some(DefineText {text: "dide-undefined".to_string(), origin: None})
+                            text: Some(DefineText {text: "UNKNOWN_MACRO".to_string(), origin: None})
                         };
                         defines.insert(not_found_macro_name, Some(com_define));
                         parse_iterations += 1;
diff --git a/src/test/mod.rs b/src/test/mod.rs
index 3c57d2b..acf6eb0 100644
--- a/src/test/mod.rs
+++ b/src/test/mod.rs
@@ -54,7 +54,7 @@ mod test_fast {
 
     #[test]
     fn test_parent() {
-        let fast = sv_parser("/home/dide/project/Digital-Test/Digital-IDE-temp/user/src/vlog/bigfile/axil_crossbar.v");
+        let fast = sv_parser("/home/dide/project/Digital-Test/Digital-IDE-temp/user/src/svlog/std2017/dependence/parent.sv");
         let fast = fast.unwrap();
         println!("{:#?}", fast.content);
     }
@@ -427,7 +427,6 @@ mod test_file {
 
     #[test]
     fn test_cache() {
-        let test_path = "/home/dide/project/digital-lsp-server/.cache";
-        fs::create_dir_all("/home/dide/project/digital-lsp-server/.cache");
+        let _ = fs::create_dir_all("/home/dide/project/digital-lsp-server/.cache");
     }
 }
\ No newline at end of file
diff --git a/src/utils/fast.rs b/src/utils/fast.rs
index 139ccbe..3fc8326 100644
--- a/src/utils/fast.rs
+++ b/src/utils/fast.rs
@@ -1,4 +1,4 @@
-
+#[allow(unused)]
 use log::info;
 
 use crate::{core::hdlparam::Define, server::LSPServer};
diff --git a/vhdl-parser b/vhdl-parser
new file mode 160000
index 0000000..8593bef
--- /dev/null
+++ b/vhdl-parser
@@ -0,0 +1 @@
+Subproject commit 8593beff8c21bd3d3e417ac893b9f317f5386070