feat(lsp): implement textDocument/foldingRange (#9900)

Co-authored-by: Kitson Kelly <me@kitsonkelly.com>

2 files changed, 14 insertions, 0 deletions

diff --git a/cli/tsc/99_main_compiler.js b/cli/tsc/99_main_compiler.js
index 8aba3dca9..9396ba4ad 100644
--- a/cli/tsc/99_main_compiler.js
+++ b/cli/tsc/99_main_compiler.js
@@ -675,6 +675,14 @@ delete Object.prototype.__proto__;
           languageService.getNavigationTree(request.specifier),
         );
       }
+      case "getOutliningSpans": {
+        return respond(
+          id,
+          languageService.getOutliningSpans(
+            request.specifier,
+          ),
+        );
+      }
       case "getQuickInfo": {
         return respond(
           id,
diff --git a/cli/tsc/compiler.d.ts b/cli/tsc/compiler.d.ts
index bdbc89a87..ec82af1e2 100644
--- a/cli/tsc/compiler.d.ts
+++ b/cli/tsc/compiler.d.ts
@@ -58,6 +58,7 @@ declare global {
     | GetDocumentHighlightsRequest
     | GetImplementationRequest
     | GetNavigationTree
+    | GetOutliningSpans
     | GetQuickInfoRequest
     | GetReferencesRequest
     | GetSignatureHelpItemsRequest
@@ -151,6 +152,11 @@ declare global {
     specifier: string;
   }
 
+  interface GetOutliningSpans extends BaseLanguageServerRequest {
+    method: "getOutliningSpans";
+    specifier: string;
+  }
+
   interface GetQuickInfoRequest extends BaseLanguageServerRequest {
     method: "getQuickInfo";
     specifier: string;