diff options
Diffstat (limited to 'ldo.c')
| -rw-r--r-- | ldo.c | 8 |
1 files changed, 6 insertions, 2 deletions
@@ -213,7 +213,7 @@ int luaD_reallocstack (lua_State *L, int newsize, int raiseerror) { /* -** Try to grow the stack by at least 'n' elements. when 'raiseerror' +** Try to grow the stack by at least 'n' elements. When 'raiseerror' ** is true, raises any error; otherwise, return 0 in case of errors. */ int luaD_growstack (lua_State *L, int n, int raiseerror) { @@ -247,6 +247,10 @@ int luaD_growstack (lua_State *L, int n, int raiseerror) { } +/* +** Compute how much of the stack is being used, by computing the +** maximum top of all call frames in the stack and the current top. +*/ static int stackinuse (lua_State *L) { CallInfo *ci; int res; @@ -254,7 +258,7 @@ static int stackinuse (lua_State *L) { for (ci = L->ci; ci != NULL; ci = ci->previous) { if (lim < ci->top) lim = ci->top; } - lua_assert(lim <= L->stack_last); + lua_assert(lim <= L->stack_last + EXTRA_STACK); res = cast_int(lim - L->stack) + 1; /* part of stack in use */ if (res < LUA_MINSTACK) res = LUA_MINSTACK; /* ensure a minimum size */ |