feat(treesitter): show filetype associated with parser (#17633)

to ease debug. At one point I had an empty filetype and the current message was not helpful enough
neovim · Jan 22, 2023 · 151b9fc · 151b9fc
1 parent 80bede1
commit 151b9fc
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/src/nvim/lua/treesitter.c b/src/nvim/lua/treesitter.c
@@ -182,8 +182,8 @@ int tslua_add_language(lua_State *L)
 
   uv_lib_t lib;
   if (uv_dlopen(path, &lib)) {
-    snprintf(IObuff, IOSIZE, "Failed to load parser: uv_dlopen: %s",
-             uv_dlerror(&lib));
+    snprintf(IObuff, IOSIZE, "Failed to load parser for language '%s': uv_dlopen: %s",
+             lang_name, uv_dlerror(&lib));
     uv_dlclose(&lib);
     lua_pushstring(L, IObuff);
     return lua_error(L);

diff --git a/test/functional/treesitter/language_spec.lua b/test/functional/treesitter/language_spec.lua
@@ -17,7 +17,7 @@ describe('treesitter language API', function()
        pcall_err(exec_lua, "parser = vim.treesitter.get_parser(0, 'borklang')"))
 
     -- actual message depends on platform
-    matches("Failed to load parser: uv_dlopen: .+",
+    matches("Failed to load parser for language 'borklang': uv_dlopen: .+",
        pcall_err(exec_lua, "parser = vim.treesitter.require_language('borklang', 'borkbork.so')"))
 
     -- Should not throw an error when silent