#ifndef ltm_h
#define ltm_h
#include "third_party/lua/lobject.h"
#include "third_party/lua/luaconf.h"
#include "third_party/lua/tms.h"
/* clang-format off */

/*
** Mask with 1 in all fast-access methods. A 1 in any of these bits
** in the flag of a (meta)table means the metatable does not have the
** corresponding metamethod field. (Bit 7 of the flag is used for
** 'isrealasize'.)
*/
#define maskflags	(~(~0u << (TM_EQ + 1)))


/*
** Test whether there is no tagmethod.
** (Because tagmethods use raw accesses, the result may be an "empty" nil.)
*/
#define notm(tm)	ttisnil(tm)


#define gfasttm(g,et,e) ((et) == NULL ? NULL : \
  ((et)->flags & (1u<<(e))) ? NULL : luaT_gettm(et, e, (g)->tmname[e]))

#define fasttm(l,et,e)	gfasttm(G(l), et, e)

#define ttypename(x)	luaT_typenames_[(x) + 1]

LUAI_DDEC(const char *const luaT_typenames_[LUA_TOTALTYPES];)


LUAI_FUNC const char *luaT_objtypename (lua_State *L, const TValue *o);

LUAI_FUNC const TValue *luaT_gettm (Table *events, TMS event, TString *ename);
LUAI_FUNC const TValue *luaT_gettmbyobj (lua_State *L, const TValue *o,
                                                       TMS event);
LUAI_FUNC void luaT_init (lua_State *L);

LUAI_FUNC void luaT_callTM (lua_State *L, const TValue *f, const TValue *p1,
                            const TValue *p2, const TValue *p3);
LUAI_FUNC void luaT_callTMres (lua_State *L, const TValue *f,
                            const TValue *p1, const TValue *p2, StkId p3);
LUAI_FUNC void luaT_trybinTM (lua_State *L, const TValue *p1, const TValue *p2,
                              StkId res, TMS event);
LUAI_FUNC void luaT_tryconcatTM (lua_State *L);
LUAI_FUNC void luaT_trybinassocTM (lua_State *L, const TValue *p1,
       const TValue *p2, int inv, StkId res, TMS event);
LUAI_FUNC void luaT_trybiniTM (lua_State *L, const TValue *p1, lua_Integer i2,
                               int inv, StkId res, TMS event);
LUAI_FUNC int luaT_callorderTM (lua_State *L, const TValue *p1,
                                const TValue *p2, TMS event);
LUAI_FUNC int luaT_callorderiTM (lua_State *L, const TValue *p1, int v2,
                                 int inv, int isfloat, TMS event);

LUAI_FUNC void luaT_adjustvarargs (lua_State *L, int nfixparams,
                                   struct CallInfo *ci, const Proto *p);
LUAI_FUNC void luaT_getvarargs (lua_State *L, struct CallInfo *ci,
                                              StkId where, int wanted);


#endif
