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** $Id: ldo.h,v 1.3 1997/11/19 17:29:23 roberto Exp roberto $
** Stack and Call structure of Lua
** See Copyright Notice in lua.h
#ifndef ldo_h
#define ldo_h
#include "lobject.h"
#include "lstate.h"
#define MULT_RET 255
** macro to increment stack top.
** There must be always an empty slot at the L->
#define incr_top { if (L-> >= L->stack.last) luaD_checkstack(1); \
L->; }
/* macros to convert from lua_Object to (TObject *) and back */
#define Address(lo) ((lo)+L->stack.stack-1)
#define Ref(st) ((st)-L->stack.stack+1)
void luaD_init (void);
void luaD_adjusttop (StkId newtop);
void luaD_openstack (int nelems);
void luaD_lineHook (int line);
void luaD_callHook (StkId base, TProtoFunc *tf, int isreturn);
void luaD_call (StkId base, int nResults);
void luaD_callTM (TObject *f, int nParams, int nResults);
int luaD_protectedrun (int nResults);
void luaD_gcIM (TObject *o);
void luaD_travstack (int (*fn)(TObject *));
void luaD_checkstack (int n);