Check if LSP help is empty

Then do not display anything and warn user with a message that
no help was available.

1 files changed, 7 insertions, 2 deletions

diff --git a/src/main/lsp/help.c b/src/main/lsp/help.c
index e5bcc28..ea89f23 100644
--- a/src/main/lsp/help.c
+++ b/src/main/lsp/help.c
@@ -36,6 +36,13 @@ static void handle_help_response(struct lsp_server *server,
     return;
   }
 
+  struct hover help = hover_from_json(&response->value.result);
+  if (s8empty(help.contents)) {
+    minibuffer_echo_timeout(4, "help: no help found");
+    hover_free(&help);
+    return;
+  }
+
   struct buffer *b = buffers_find(buffers, "*lsp-help*");
   if (b == NULL) {
     b = buffers_add(buffers, buffer_create("*lsp-help*"));
@@ -52,8 +59,6 @@ static void handle_help_response(struct lsp_server *server,
     buffer_add_keymap(b, km);
   }
 
-  struct hover help = hover_from_json(&response->value.result);
-
   buffer_set_readonly(b, false);
   buffer_clear(b);
   buffer_add(b, buffer_end(b), help.contents.s, help.contents.l);