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Diffstat (limited to 'vis-lua.c')
-rw-r--r--vis-lua.c36
1 files changed, 27 insertions, 9 deletions
diff --git a/vis-lua.c b/vis-lua.c
index 4810d7f..eae98b4 100644
--- a/vis-lua.c
+++ b/vis-lua.c
@@ -905,7 +905,7 @@ static int motion(lua_State *L) {
static size_t motion_lua(Vis *vis, Win *win, void *data, size_t pos) {
lua_State *L = vis->lua;
- if (!func_ref_get(L, data) || !obj_ref_new(L, win, VIS_LUA_TYPE_WINDOW))
+ if (!L || !func_ref_get(L, data) || !obj_ref_new(L, win, VIS_LUA_TYPE_WINDOW))
return EPOS;
lua_pushunsigned(L, pos);
@@ -954,7 +954,7 @@ static int operator(lua_State *L) {
static size_t operator_lua(Vis *vis, Text *text, OperatorContext *c) {
lua_State *L = vis->lua;
- if (!func_ref_get(L, c->context))
+ if (!L || !func_ref_get(L, c->context))
return EPOS;
File *file = vis->files;
while (file && (file->internal || file->text != text))
@@ -1012,7 +1012,7 @@ static int textobject(lua_State *L) {
static Filerange textobject_lua(Vis *vis, Win *win, void *data, size_t pos) {
lua_State *L = vis->lua;
- if (!func_ref_get(L, data) || !obj_ref_new(L, win, VIS_LUA_TYPE_WINDOW))
+ if (!L || !func_ref_get(L, data) || !obj_ref_new(L, win, VIS_LUA_TYPE_WINDOW))
return text_range_empty();
lua_pushunsigned(L, pos);
if (pcall(vis, L, 2, 2) != 0 || lua_isnil(L, -1))
@@ -1045,7 +1045,7 @@ static int textobject_register(lua_State *L) {
static bool option_lua(Vis *vis, Win *win, void *context, bool toggle,
enum VisOption flags, const char *name, Arg *value) {
lua_State *L = vis->lua;
- if (!func_ref_get(L, context))
+ if (!L || !func_ref_get(L, context))
return false;
if (flags & VIS_OPTION_TYPE_BOOL)
lua_pushboolean(L, value->b);
@@ -1112,7 +1112,7 @@ static int option_unregister(lua_State *L) {
static bool command_lua(Vis *vis, Win *win, void *data, bool force, const char *argv[], Cursor *cur, Filerange *range) {
lua_State *L = vis->lua;
- if (!func_ref_get(L, data))
+ if (!L || !func_ref_get(L, data))
return false;
lua_newtable(L);
for (size_t i = 0; argv[i]; i++) {
@@ -2357,9 +2357,9 @@ static bool vis_lua_path_strip(Vis *vis) {
}
bool vis_lua_path_add(Vis *vis, const char *path) {
- if (!path)
- return false;
lua_State *L = vis->lua;
+ if (!L || !path)
+ return false;
lua_getglobal(L, "package");
lua_pushstring(L, path);
lua_pushstring(L, "/?.lua;");
@@ -2620,6 +2620,8 @@ void vis_lua_start(Vis *vis) {
* @function quit
*/
void vis_lua_quit(Vis *vis) {
+ if (!vis->lua)
+ return;
vis_lua_event_call(vis, "quit");
lua_close(vis->lua);
vis->lua = NULL;
@@ -2632,9 +2634,9 @@ void vis_lua_quit(Vis *vis) {
* @treturn bool whether the key was cosumed or not
*/
static bool vis_lua_input(Vis *vis, const char *key, size_t len) {
- if (vis->win->file->internal)
- return false;
lua_State *L = vis->lua;
+ if (!L || vis->win->file->internal)
+ return false;
bool ret = false;
vis_lua_event_get(L, "input");
if (lua_isfunction(L, -1)) {
@@ -2666,6 +2668,8 @@ void vis_lua_mode_replace_input(Vis *vis, const char *key, size_t len) {
void vis_lua_file_open(Vis *vis, File *file) {
debug("event: file-open: %s %p %p\n", file->name ? file->name : "unnamed", (void*)file, (void*)file->text);
lua_State *L = vis->lua;
+ if (!L)
+ return;
vis_lua_event_get(L, "file_open");
if (lua_isfunction(L, -1)) {
obj_ref_new(L, file, VIS_LUA_TYPE_FILE);
@@ -2684,6 +2688,8 @@ void vis_lua_file_open(Vis *vis, File *file) {
*/
bool vis_lua_file_save_pre(Vis *vis, File *file, const char *path) {
lua_State *L = vis->lua;
+ if (!L)
+ return true;
vis_lua_event_get(L, "file_save_pre");
if (lua_isfunction(L, -1)) {
obj_ref_new(L, file, VIS_LUA_TYPE_FILE);
@@ -2705,6 +2711,8 @@ bool vis_lua_file_save_pre(Vis *vis, File *file, const char *path) {
*/
void vis_lua_file_save_post(Vis *vis, File *file, const char *path) {
lua_State *L = vis->lua;
+ if (!L)
+ return;
vis_lua_event_get(L, "file_save_post");
if (lua_isfunction(L, -1)) {
obj_ref_new(L, file, VIS_LUA_TYPE_FILE);
@@ -2723,6 +2731,8 @@ void vis_lua_file_save_post(Vis *vis, File *file, const char *path) {
void vis_lua_file_close(Vis *vis, File *file) {
debug("event: file-close: %s %p %p\n", file->name ? file->name : "unnamed", (void*)file, (void*)file->text);
lua_State *L = vis->lua;
+ if (!L)
+ return;
vis_lua_event_get(L, "file_close");
if (lua_isfunction(L, -1)) {
obj_ref_new(L, file, VIS_LUA_TYPE_FILE);
@@ -2743,6 +2753,8 @@ void vis_lua_file_close(Vis *vis, File *file) {
void vis_lua_win_open(Vis *vis, Win *win) {
debug("event: win-open: %s %p %p\n", win->file->name ? win->file->name : "unnamed", (void*)win, (void*)win->view);
lua_State *L = vis->lua;
+ if (!L)
+ return;
vis_lua_event_get(L, "win_open");
if (lua_isfunction(L, -1)) {
obj_ref_new(L, win, VIS_LUA_TYPE_WINDOW);
@@ -2760,6 +2772,8 @@ void vis_lua_win_open(Vis *vis, Win *win) {
void vis_lua_win_close(Vis *vis, Win *win) {
debug("event: win-close: %s %p %p\n", win->file->name ? win->file->name : "unnamed", (void*)win, (void*)win->view);
lua_State *L = vis->lua;
+ if (!L)
+ return;
vis_lua_event_get(L, "win_close");
if (lua_isfunction(L, -1)) {
obj_ref_new(L, win, VIS_LUA_TYPE_WINDOW);
@@ -2779,6 +2793,8 @@ void vis_lua_win_close(Vis *vis, Win *win) {
*/
void vis_lua_win_highlight(Vis *vis, Win *win) {
lua_State *L = vis->lua;
+ if (!L)
+ return;
vis_lua_event_get(L, "win_highlight");
if (lua_isfunction(L, -1)) {
obj_ref_new(L, win, VIS_LUA_TYPE_WINDOW);
@@ -2795,6 +2811,8 @@ void vis_lua_win_highlight(Vis *vis, Win *win) {
*/
void vis_lua_win_status(Vis *vis, Win *win) {
lua_State *L = vis->lua;
+ if (!L)
+ return;
vis_lua_event_get(L, "win_status");
if (lua_isfunction(L, -1)) {
obj_ref_new(L, win, VIS_LUA_TYPE_WINDOW);
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