57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/*
|
|
** $Id: ldo.h,v 2.7.1.1 2007/12/27 13:02:25 roberto Exp $
|
|
** Stack and Call structure of Lua
|
|
** See Copyright Notice in lua.h
|
|
*/
|
|
|
|
#ifndef ldo_h
|
|
#define ldo_h
|
|
|
|
|
|
#include "lobject.h"
|
|
#include "lstate.h"
|
|
#include "lzio.h"
|
|
|
|
|
|
#define luaD_checkstack(L,n) \
|
|
if ((char *)L->stack_last - (char *)L->top <= (n)*(int)sizeof(TValue)) \
|
|
luaD_growstack(L, n); \
|
|
else condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1));
|
|
|
|
|
|
#define incr_top(L) {luaD_checkstack(L,1); L->top++;}
|
|
|
|
#define savestack(L,p) ((char *)(p) - (char *)L->stack)
|
|
#define restorestack(L,n) ((TValue *)((char *)L->stack + (n)))
|
|
|
|
#define saveci(L,p) ((char *)(p) - (char *)L->base_ci)
|
|
#define restoreci(L,n) ((CallInfo *)((char *)L->base_ci + (n)))
|
|
|
|
|
|
/* results from luaD_precall */
|
|
#define PCRLUA 0 /* initiated a call to a Lua function */
|
|
#define PCRC 1 /* did a call to a C function */
|
|
#define PCRYIELD 2 /* C funtion yielded */
|
|
|
|
|
|
/* type of protected functions, to be ran by `runprotected' */
|
|
typedef void (*Pfunc) (lua_State *L, void *ud);
|
|
|
|
LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name);
|
|
LUAI_FUNC void luaD_callhook (lua_State *L, int event, int line);
|
|
LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults);
|
|
LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults);
|
|
LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u,
|
|
ptrdiff_t oldtop, ptrdiff_t ef);
|
|
LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult);
|
|
LUAI_FUNC void luaD_reallocCI (lua_State *L, int newsize);
|
|
LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
|
|
LUAI_FUNC void luaD_growstack (lua_State *L, int n);
|
|
|
|
LUAI_FUNC void luaD_throw (lua_State *L, int errcode);
|
|
LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);
|
|
|
|
LUAI_FUNC void luaD_seterrorobj (lua_State *L, int errcode, StkId oldtop);
|
|
|
|
#endif
|
|
|