From 05f2f402f867cc24fc130ff1299d8eed5d56213b Mon Sep 17 00:00:00 2001
From: Lukas Reineke <lukas@reineke.jp>
Date: Mon, 7 Oct 2024 12:05:02 +0900
Subject: [PATCH] fix: don't allow empty scope

There seems to be a bug in treesitter that allows an infinite loop of
node parents, if the node is empty.
IBL doesn't care about the node if it's empty anyway, so we can just
ignore them.

fix #930
---
 lua/ibl/init.lua  | 1 +
 lua/ibl/scope.lua | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/lua/ibl/init.lua b/lua/ibl/init.lua
index 0d3333e..85c41fc 100644
--- a/lua/ibl/init.lua
+++ b/lua/ibl/init.lua
@@ -244,6 +244,7 @@ M.refresh = function(bufnr)
     local scope_row_start, scope_col_start, scope_row_end, scope_col_end = -1, -1, -1, -1
     local scope_index = -1
     if scope then
+        ---@diagnostic disable-next-line: cast-local-type
         scope_row_start, scope_col_start, scope_row_end, scope_col_end = scope:range()
         scope_row_start, scope_col_start, scope_row_end = scope_row_start + 1, scope_col_start + 1, scope_row_end + 1
     end
diff --git a/lua/ibl/scope.lua b/lua/ibl/scope.lua
index 122c170..2e7dcfe 100644
--- a/lua/ibl/scope.lua
+++ b/lua/ibl/scope.lua
@@ -72,7 +72,7 @@ M.get = function(bufnr, config)
     local include_node_types =
         utils.tbl_join(config.scope.include.node_type["*"] or {}, config.scope.include.node_type[lang] or {})
 
-    while node do
+    while node and node:byte_length() > 0 do
         local type = node:type()
 
         if