api: add textlock check

src/nvim/api/buffer.c

@@ -329,6 +329,7 @@ void nvim_buf_set_lines(uint64_t channel_id,
                         ArrayOf(String) replacement,
                         Error *err)
   FUNC_API_SINCE(1)
+  FUNC_API_CHECK_TEXTLOCK
 {
   buf_T *buf = find_buffer_by_handle(buffer, err);
 
@@ -779,6 +780,7 @@ Boolean nvim_buf_is_loaded(Buffer buffer)
 ///          - unload: Unloaded only, do not delete. See |:bunload|
 void nvim_buf_delete(Buffer buffer, Dictionary opts, Error *err)
   FUNC_API_SINCE(7)
+  FUNC_API_CHECK_TEXTLOCK
 {
   buf_T *buf = find_buffer_by_handle(buffer, err);
 

src/nvim/api/vim.c

@@ -857,6 +857,7 @@ String nvim_get_current_line(Error *err)
 /// @param[out] err Error details, if any
 void nvim_set_current_line(String line, Error *err)
   FUNC_API_SINCE(1)
+  FUNC_API_CHECK_TEXTLOCK
 {
   buffer_set_line(curbuf->handle, curwin->w_cursor.lnum - 1, line, err);
 }
@@ -866,6 +867,7 @@ void nvim_set_current_line(String line, Error *err)
 /// @param[out] err Error details, if any
 void nvim_del_current_line(Error *err)
   FUNC_API_SINCE(1)
+  FUNC_API_CHECK_TEXTLOCK
 {
   buffer_del_line(curbuf->handle, curwin->w_cursor.lnum - 1, err);
 }
@@ -1060,6 +1062,7 @@ Buffer nvim_get_current_buf(void)
 /// @param[out] err Error details, if any
 void nvim_set_current_buf(Buffer buffer, Error *err)
   FUNC_API_SINCE(1)
+  FUNC_API_CHECK_TEXTLOCK
 {
   buf_T *buf = find_buffer_by_handle(buffer, err);
 
@@ -1114,6 +1117,7 @@ Window nvim_get_current_win(void)
 /// @param[out] err Error details, if any
 void nvim_set_current_win(Window window, Error *err)
   FUNC_API_SINCE(1)
+  FUNC_API_CHECK_TEXTLOCK
 {
   win_T *win = find_window_by_handle(window, err);
 
@@ -1263,6 +1267,7 @@ fail:
 Window nvim_open_win(Buffer buffer, Boolean enter, Dictionary config,
                      Error *err)
   FUNC_API_SINCE(6)
+  FUNC_API_CHECK_TEXTLOCK
 {
   FloatConfig fconfig = FLOAT_CONFIG_INIT;
   if (!parse_float_config(config, &fconfig, false, err)) {
@@ -1327,6 +1332,7 @@ Tabpage nvim_get_current_tabpage(void)
 /// @param[out] err Error details, if any
 void nvim_set_current_tabpage(Tabpage tabpage, Error *err)
   FUNC_API_SINCE(1)
+  FUNC_API_CHECK_TEXTLOCK
 {
   tabpage_T *tp = find_tab_by_handle(tabpage, err);
 
@@ -1411,6 +1417,7 @@ Dictionary nvim_get_namespaces(void)
 ///     - false: Client must cancel the paste.
 Boolean nvim_paste(String data, Boolean crlf, Integer phase, Error *err)
   FUNC_API_SINCE(6)
+  FUNC_API_CHECK_TEXTLOCK
 {
   static bool draining = false;
   bool cancel = false;
@@ -1483,6 +1490,7 @@ theend:
 void nvim_put(ArrayOf(String) lines, String type, Boolean after,
               Boolean follow, Error *err)
   FUNC_API_SINCE(6)
+  FUNC_API_CHECK_TEXTLOCK
 {
   yankreg_T *reg = xcalloc(sizeof(yankreg_T), 1);
   if (!prepare_yankreg_from_object(reg, type, lines.size)) {

src/nvim/api/window.c

@@ -44,6 +44,7 @@ Buffer nvim_win_get_buf(Window window, Error *err)
 /// @param[out] err Error details, if any
 void nvim_win_set_buf(Window window, Buffer buffer, Error *err)
   FUNC_API_SINCE(5)
+  FUNC_API_CHECK_TEXTLOCK
 {
   win_T *win = find_window_by_handle(window, err), *save_curwin = curwin;
   buf_T *buf = find_buffer_by_handle(buffer, err);
@@ -500,6 +501,7 @@ Dictionary nvim_win_get_config(Window window, Error *err)
 /// @param[out] err Error details, if any
 void nvim_win_close(Window window, Boolean force, Error *err)
   FUNC_API_SINCE(6)
+  FUNC_API_CHECK_TEXTLOCK
 {
   win_T *win = find_window_by_handle(window, err);
   if (!win) {

src/nvim/func_attr.h

@@ -213,6 +213,8 @@
 # define FUNC_API_REMOTE_ONLY
 /// API function not exposed in VimL/remote.
 # define FUNC_API_LUA_ONLY
+/// API function checked textlock.
+# define FUNC_API_CHECK_TEXTLOCK
 /// API function introduced at the given API level.
 # define FUNC_API_SINCE(X)
 /// API function deprecated since the given API level.

src/nvim/generators/c_grammar.lua

@@ -43,6 +43,7 @@ local c_proto = Ct(
   (fill * Cg((P('FUNC_API_NOEXPORT') * Cc(true)), 'noexport') ^ -1) *
   (fill * Cg((P('FUNC_API_REMOTE_ONLY') * Cc(true)), 'remote_only') ^ -1) *
   (fill * Cg((P('FUNC_API_LUA_ONLY') * Cc(true)), 'lua_only') ^ -1) *
+  (fill * Cg((P('FUNC_API_CHECK_TEXTLOCK') * Cc(true)), 'check_textlock') ^ -1) *
   (fill * Cg((P('FUNC_API_REMOTE_IMPL') * Cc(true)), 'remote_impl') ^ -1) *
   (fill * Cg((P('FUNC_API_BRIDGE_IMPL') * Cc(true)), 'bridge_impl') ^ -1) *
   (fill * Cg((P('FUNC_API_COMPOSITOR_IMPL') * Cc(true)), 'compositor_impl') ^ -1) *

src/nvim/generators/gen_api_dispatch.lua

@@ -260,6 +260,13 @@ for i = 1, #functions do
       args[#args + 1] = converted
     end
 
+    if fn.check_textlock then
+      output:write('\n  if (textlock != 0) {')
+      output:write('\n    api_set_error(error, kErrorTypeException, "%s", e_secure);')
+      output:write('\n    goto cleanup;')
+      output:write('\n  }\n')
+    end
+
     -- function call
     local call_args = table.concat(args, ', ')
     output:write('\n  ')
@@ -393,6 +400,16 @@ local function process_function(fn)
     }
     ]], fn.name))
   end
+
+  if fn.check_textlock then
+    write_shifted_output(output, [[
+    if (textlock != 0) {
+      api_set_error(&err, kErrorTypeException, "%s", e_secure);
+      goto exit_0;
+    }
+    ]])
+  end
+
   local cparams = ''
   local free_code = {}
   for j = #fn.parameters,1,-1 do