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-rw-r--r--3rdparty/lua/src/ldo.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/3rdparty/lua/src/ldo.c b/3rdparty/lua/src/ldo.c
index 95efd560684..8804c997775 100644
--- a/3rdparty/lua/src/ldo.c
+++ b/3rdparty/lua/src/ldo.c
@@ -1,5 +1,5 @@
/*
-** $Id: ldo.c,v 2.150 2015/11/19 19:16:22 roberto Exp $
+** $Id: ldo.c,v 2.151 2015/12/16 16:40:07 roberto Exp $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
*/
@@ -242,9 +242,14 @@ void luaD_inctop (lua_State *L) {
/* }================================================================== */
+/*
+** Call a hook for the given event. Make sure there is a hook to be
+** called. (Both 'L->hook' and 'L->hookmask', which triggers this
+** function, can be changed asynchronously by signals.)
+*/
void luaD_hook (lua_State *L, int event, int line) {
lua_Hook hook = L->hook;
- if (hook && L->allowhook) {
+ if (hook && L->allowhook) { /* make sure there is a hook */
CallInfo *ci = L->ci;
ptrdiff_t top = savestack(L, L->top);
ptrdiff_t ci_top = savestack(L, ci->top);