feat(lsp): include source in auto import completion label (#20523)

cli/lsp/language_server.rs

@@ -2440,6 +2440,7 @@ impl Inner {
           &self.config.workspace_settings().suggest,
           &specifier,
           position,
+          self,
         );
         Some(results)
       } else {

cli/lsp/tsc.rs

@@ -2603,6 +2603,7 @@ impl CompletionInfo {
     settings: &config::CompletionSettings,
     specifier: &ModuleSpecifier,
     position: u32,
+    language_server: &language_server::Inner,
   ) -> lsp::CompletionResponse {
     let items = self
       .entries
@@ -2614,6 +2615,7 @@ impl CompletionInfo {
           settings,
           specifier,
           position,
+          language_server,
         )
       })
       .collect();
@@ -2808,8 +2810,10 @@ impl CompletionEntry {
     settings: &config::CompletionSettings,
     specifier: &ModuleSpecifier,
     position: u32,
+    language_server: &language_server::Inner,
   ) -> lsp::CompletionItem {
     let mut label = self.name.clone();
+    let mut label_details: Option<lsp::CompletionItemLabelDetails> = None;
     let mut kind: Option<lsp::CompletionItemKind> =
       Some(self.kind.clone().into());
 
@@ -2865,6 +2869,30 @@ impl CompletionEntry {
       }
     }
 
+    if let Some(source) = &self.source {
+      let mut source = source.clone();
+      if let Some(data) = &self.data {
+        if let Ok(import_data) =
+          serde_json::from_value::<CompletionEntryDataImport>(data.clone())
+        {
+          if let Ok(import_specifier) =
+            normalize_specifier(import_data.file_name)
+          {
+            if let Some(new_module_specifier) = language_server
+              .get_ts_response_import_mapper()
+              .check_specifier(&import_specifier, specifier)
+              .or_else(|| relative_specifier(specifier, &import_specifier))
+            {
+              source = new_module_specifier;
+            }
+          }
+        }
+      }
+      label_details
+        .get_or_insert_with(Default::default)
+        .description = Some(source);
+    }
+
     let text_edit =
       if let (Some(text_span), Some(new_text)) = (range, &insert_text) {
         let range = text_span.to_range(line_index);
@@ -2889,6 +2917,7 @@ impl CompletionEntry {
 
     lsp::CompletionItem {
       label,
+      label_details,
       kind,
       sort_text,
       preselect,

cli/tests/integration/lsp_tests.rs

@@ -5212,6 +5212,9 @@ fn lsp_completions_auto_import() {
 
   let req = json!({
     "label": "foo",
+    "labelDetails": {
+      "description": "./b.ts",
+    },
     "kind": 6,
     "sortText": "￿16",
     "commitCharacters": [
@@ -5243,6 +5246,9 @@ fn lsp_completions_auto_import() {
     res,
     json!({
       "label": "foo",
+      "labelDetails": {
+        "description": "./b.ts",
+      },
       "kind": 6,
       "detail": "const foo: \"foo\"",
       "documentation": {
@@ -5323,6 +5329,9 @@ fn lsp_npm_completions_auto_import_and_quick_fix_no_import_map() {
     res,
     json!({
       "label": "getClient",
+      "labelDetails": {
+        "description": "npm:@denotest/types-exports-subpaths@1/client",
+      },
       "kind": 3,
       "detail": "function getClient(): 5",
       "documentation": {
@@ -5435,6 +5444,9 @@ fn lsp_npm_completions_auto_import_and_quick_fix_no_import_map() {
     res,
     json!({
       "label": "chalk",
+      "labelDetails": {
+        "description": "npm:chalk@5.0",
+      },
       "kind": 6,
       "sortText": "￿16",
       "additionalTextEdits": [
@@ -5635,6 +5647,9 @@ fn lsp_completions_auto_import_and_quick_fix_with_import_map() {
     res,
     json!({
       "label": "getClient",
+      "labelDetails": {
+        "description": "types-exports-subpaths/client",
+      },
       "kind": 3,
       "detail": "function getClient(): 5",
       "documentation": {
@@ -5747,6 +5762,9 @@ fn lsp_completions_auto_import_and_quick_fix_with_import_map() {
     res,
     json!({
       "label": "chalk",
+      "labelDetails": {
+        "description": "chalk",
+      },
       "kind": 6,
       "sortText": "￿16",
       "additionalTextEdits": [
@@ -5854,6 +5872,9 @@ fn lsp_completions_auto_import_and_quick_fix_with_import_map() {
     res,
     json!({
       "label": "printHello",
+      "labelDetails": {
+        "description": "print_hello",
+      },
       "kind": 3,
       "sortText": "￿16",
       "additionalTextEdits": [