From 25956c49c14d8ca3666d48ebeef2c1c4f2e66ce3 Mon Sep 17 00:00:00 2001
From: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Date: Wed, 16 Apr 2025 13:05:53 +0200
Subject: [PATCH] lsp: Register buffers with language server when querying
 inlay hints (#28855)

We register buffers with language servers lazily when in multi-buffer
(when the excerpt is interacted with); this does not account for inlay
hints, of which a mere presence on a screen is enough to query a
language server with a path it does not recognize. This posed a problem
with typescript-language-server, which sent a notification to the user
whenever they had a multibuffer open with inlay hints enabled.

Closes #ISSUE

Release Notes:

- Fixed annoying pop-up with typescript-language-server that happened in
multi-buffers with inlay hints enabled.
---
 crates/editor/src/inlay_hint_cache.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/crates/editor/src/inlay_hint_cache.rs b/crates/editor/src/inlay_hint_cache.rs
index 9eff4fd2a0..fd419b2968 100644
--- a/crates/editor/src/inlay_hint_cache.rs
+++ b/crates/editor/src/inlay_hint_cache.rs
@@ -989,6 +989,16 @@ fn fetch_and_update_hints(
                 }
 
                 let buffer = editor.buffer().read(cx).buffer(query.buffer_id)?;
+                if !editor.registered_buffers.contains_key(&query.buffer_id) {
+                    if let Some(project) = editor.project.as_ref() {
+                        project.update(cx, |project, cx| {
+                            editor.registered_buffers.insert(
+                                query.buffer_id,
+                                project.register_buffer_with_language_servers(&buffer, cx),
+                            );
+                        })
+                    }
+                }
                 editor
                     .semantics_provider
                     .as_ref()?