From 8a68a043400342a02496c4ff622dd86e6f40a89c Mon Sep 17 00:00:00 2001
From: Jan Hrastnik <jan.hrastnik2@gmail.com>
Date: Sun, 21 Feb 2021 23:43:28 +0100
Subject: [PATCH] gotodefiniton now runs but doesnt return anything

---
 helix-lsp/src/client.rs    |  5 ++++-
 helix-term/src/commands.rs | 22 +++++++++++++++++++++-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/helix-lsp/src/client.rs b/helix-lsp/src/client.rs
index a747dc55f..f3d3b7e14 100644
--- a/helix-lsp/src/client.rs
+++ b/helix-lsp/src/client.rs
@@ -603,6 +603,8 @@ impl Client {
 
         let response = self.request::<lsp::request::GotoDefinition>(params).await?;
 
+        println!("{:?}", response);
+
         let items = match response {
             Some(lsp::GotoDefinitionResponse::Scalar(location)) => vec![location],
             Some(lsp::GotoDefinitionResponse::Array(location_vec)) => location_vec,
@@ -613,10 +615,11 @@ impl Client {
                         uri: location_link.target_uri,
                         range: location_link.target_range,
                     };
-                    location_vec.append(&mut link);
+                    location_vec.push(link)
                 });
                 location_vec
             }
+            None => Vec::new(),
         };
 
         Ok(items)
diff --git a/helix-term/src/commands.rs b/helix-term/src/commands.rs
index 98e79b44d..8b7e36000 100644
--- a/helix-term/src/commands.rs
+++ b/helix-term/src/commands.rs
@@ -846,7 +846,27 @@ pub fn exit_select_mode(cx: &mut Context) {
     cx.doc().mode = Mode::Normal;
 }
 
-pub fn goto_definition(cx: &mut Context) {}
+pub fn goto_definition(cx: &mut Context) {
+    let language_server = cx
+        .editor
+        .language_servers
+        .get("source.rust", &cx.executor)
+        .unwrap();
+    use log::info;
+
+    let doc = cx.doc();
+
+    // TODO: blocking here is not ideal
+    let pos = helix_lsp::util::pos_to_lsp_pos(doc.text().slice(..), doc.selection().cursor());
+
+    // TODO: handle fails
+    let res = smol::block_on(language_server.goto_definition(cx.doc().identifier(), pos))
+        .unwrap_or_default();
+
+    println!("{:?}", res);
+
+    cx.doc().mode = Mode::Normal;
+}
 
 // NOTE: Transactions in this module get appended to history when we switch back to normal mode.
 pub mod insert {