Bug: GC checks stack space before running finalizer

If some stack does not have a minimum available space, the GC defers
calling a finalizer until the next cycle. That avoids errors while
running a finalizer that the programmer cannot control.

1 files changed, 1 insertions, 0 deletions

diff --git a/ldo.h b/ldo.h
index 4de9540e..4c8db865 100644
--- a/ldo.h
+++ b/ldo.h
@@ -80,6 +80,7 @@ LUAI_FUNC int luaD_reallocstack (lua_State *L, int newsize, int raiseerror);
 LUAI_FUNC int luaD_growstack (lua_State *L, int n, int raiseerror);
 LUAI_FUNC void luaD_shrinkstack (lua_State *L);
 LUAI_FUNC void luaD_inctop (lua_State *L);
+LUAI_FUNC int luaD_checkminstack (lua_State *L);
 
 LUAI_FUNC l_noret luaD_throw (lua_State *L, int errcode);
 LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);