fix(api): use text_locked() to check textlock

Problem: some API functions that check textlock (usually those that can change
curwin or curbuf) can break the cmdwin.

Solution: make FUNC_API_CHECK_TEXTLOCK call text_locked() instead, which already
checks for textlock, cmdwin and `<expr>` status.

Add FUNC_API_TEXTLOCK_ALLOW_CMDWIN to allow such functions to be usable in the
cmdwin if they can work properly there; the opt-in nature of this attribute
should hopefully help mitigate future bugs.

Also fix a regression in #22634 that made functions checking textlock usable in
`<expr>` mappings, and rename FUNC_API_CHECK_TEXTLOCK to FUNC_API_TEXTLOCK.

4 files changed, 13 insertions, 13 deletions

diff --git a/src/nvim/api/buffer.c b/src/nvim/api/buffer.c
index 8774aee20b..7cd9686544 100644
--- a/src/nvim/api/buffer.c
+++ b/src/nvim/api/buffer.c
@@ -347,7 +347,7 @@ end:
 void nvim_buf_set_lines(uint64_t channel_id, Buffer buffer, Integer start, Integer end,
                         Boolean strict_indexing, ArrayOf(String) replacement, Error *err)
   FUNC_API_SINCE(1)
-  FUNC_API_CHECK_TEXTLOCK
+  FUNC_API_TEXTLOCK_ALLOW_CMDWIN
 {
   buf_T *buf = find_buffer_by_handle(buffer, err);
 
@@ -1061,7 +1061,7 @@ 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
+  FUNC_API_TEXTLOCK
 {
   buf_T *buf = find_buffer_by_handle(buffer, err);
 
diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c
index 8d34a34e8a..eacc833c58 100644
--- a/src/nvim/api/vim.c
+++ b/src/nvim/api/vim.c
@@ -612,7 +612,7 @@ 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
+  FUNC_API_TEXTLOCK_ALLOW_CMDWIN
 {
   buffer_set_line(curbuf->handle, curwin->w_cursor.lnum - 1, line, err);
 }
@@ -622,7 +622,7 @@ 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
+  FUNC_API_TEXTLOCK_ALLOW_CMDWIN
 {
   buffer_del_line(curbuf->handle, curwin->w_cursor.lnum - 1, err);
 }
@@ -803,7 +803,7 @@ 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
+  FUNC_API_TEXTLOCK
 {
   buf_T *buf = find_buffer_by_handle(buffer, err);
 
@@ -858,7 +858,7 @@ 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
+  FUNC_API_TEXTLOCK
 {
   win_T *win = find_window_by_handle(window, err);
 
@@ -1084,7 +1084,7 @@ 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
+  FUNC_API_TEXTLOCK
 {
   tabpage_T *tp = find_tab_by_handle(tabpage, err);
 
@@ -1126,7 +1126,7 @@ void nvim_set_current_tabpage(Tabpage tabpage, Error *err)
 ///     - 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
+  FUNC_API_TEXTLOCK_ALLOW_CMDWIN
 {
   static bool draining = false;
   bool cancel = false;
@@ -1197,7 +1197,7 @@ theend:
 /// @param[out] err Error details, if any
 void nvim_put(ArrayOf(String) lines, String type, Boolean after, Boolean follow, Error *err)
   FUNC_API_SINCE(6)
-  FUNC_API_CHECK_TEXTLOCK
+  FUNC_API_TEXTLOCK_ALLOW_CMDWIN
 {
   yankreg_T *reg = xcalloc(1, sizeof(yankreg_T));
   VALIDATE_S((prepare_yankreg_from_object(reg, type, lines.size)), "type", type.data, {
diff --git a/src/nvim/api/win_config.c b/src/nvim/api/win_config.c
index 8e4fbb6779..6ca36a0daf 100644
--- a/src/nvim/api/win_config.c
+++ b/src/nvim/api/win_config.c
@@ -158,7 +158,7 @@
 /// @return Window handle, or 0 on error
 Window nvim_open_win(Buffer buffer, Boolean enter, Dict(float_config) *config, Error *err)
   FUNC_API_SINCE(6)
-  FUNC_API_CHECK_TEXTLOCK
+  FUNC_API_TEXTLOCK
 {
   FloatConfig fconfig = FLOAT_CONFIG_INIT;
   if (!parse_float_config(config, &fconfig, false, true, err)) {
diff --git a/src/nvim/api/window.c b/src/nvim/api/window.c
index e5a824fec9..5fb07ecbc8 100644
--- a/src/nvim/api/window.c
+++ b/src/nvim/api/window.c
@@ -48,7 +48,7 @@ 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
+  FUNC_API_TEXTLOCK
 {
   win_set_buf(window, buffer, false, err);
 }
@@ -351,7 +351,7 @@ Boolean nvim_win_is_valid(Window window)
 /// @param[out] err Error details, if any
 void nvim_win_hide(Window window, Error *err)
   FUNC_API_SINCE(7)
-  FUNC_API_CHECK_TEXTLOCK
+  FUNC_API_TEXTLOCK
 {
   win_T *win = find_window_by_handle(window, err);
   if (!win) {
@@ -383,7 +383,7 @@ void nvim_win_hide(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
+  FUNC_API_TEXTLOCK_ALLOW_CMDWIN
 {
   win_T *win = find_window_by_handle(window, err);
   if (!win) {