59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/*
|
|
** $Id: ldo.h,v 2.28 2015/11/23 11:29:43 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"
|
|
|
|
|
|
/*
|
|
** Macro to check stack size and grow stack if needed. Parameters
|
|
** 'pre'/'pos' allow the macro to preserve a pointer into the
|
|
** stack across reallocations, doing the work only when needed.
|
|
** 'condmovestack' is used in heavy tests to force a stack reallocation
|
|
** at every check.
|
|
*/
|
|
#define luaD_checkstackaux(L,n,pre,pos) \
|
|
if (L->stack_last - L->top <= (n)) \
|
|
{ pre; luaD_growstack(L, n); pos; } else { condmovestack(L,pre,pos); }
|
|
|
|
/* In general, 'pre'/'pos' are empty (nothing to save) */
|
|
#define luaD_checkstack(L,n) luaD_checkstackaux(L,n,,)
|
|
|
|
|
|
|
|
#define savestack(L,p) ((char *)(p) - (char *)L->stack)
|
|
#define restorestack(L,n) ((TValue *)((char *)L->stack + (n)))
|
|
|
|
|
|
/* 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,
|
|
const char *mode);
|
|
LUAI_FUNC void luaD_hook (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 void luaD_callnoyield (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, CallInfo *ci, StkId firstResult,
|
|
int nres);
|
|
LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
|
|
LUAI_FUNC void luaD_growstack (lua_State *L, int n);
|
|
LUAI_FUNC void luaD_shrinkstack (lua_State *L);
|
|
LUAI_FUNC void luaD_inctop (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);
|
|
|
|
#endif
|
|
|