module/lua/ldo.h

   1 /* BEGIN CSTYLED */
   2 /*
   3 ** $Id: ldo.h,v 2.20.1.1 2013/04/12 18:48:47 roberto Exp $
   4 ** Stack and Call structure of Lua
   5 ** See Copyright Notice in lua.h
   6 */
   7
   8 #ifndef ldo_h
   9 #define ldo_h
  10
  11
  12 #include "lobject.h"
  13 #include "lstate.h"
  14 #include "lzio.h"
  15
  16
  17 #define luaD_checkstack(L,n)    if (L->stack_last - L->top <= (n)) \
  18                                     luaD_growstack(L, n); else condmovestack(L);
  19
  20
  21 #define incr_top(L) {L->top++; luaD_checkstack(L,0);}
  22
  23 #define savestack(L,p)          ((char *)(p) - (char *)L->stack)
  24 #define restorestack(L,n)       ((TValue *)((char *)L->stack + (n)))
  25
  26
  27 /* type of protected functions, to be ran by `runprotected' */
  28 typedef void (*Pfunc) (lua_State *L, void *ud);
  29
  30 LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name,
  31                                                   const char *mode);
  32 LUAI_FUNC void luaD_hook (lua_State *L, int event, int line);
  33 LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults);
  34 LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults,
  35                                         int allowyield);
  36 LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u,
  37                                         ptrdiff_t oldtop, ptrdiff_t ef);
  38 LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult);
  39 LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
  40 LUAI_FUNC void luaD_growstack (lua_State *L, int n);
  41 LUAI_FUNC void luaD_shrinkstack (lua_State *L);
  42
  43 LUAI_FUNC l_noret luaD_throw (lua_State *L, int errcode);
  44 LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);
  45
  46 #endif
  47 /* END CSTYLED */