external/mit/lua/dist/src/ldo.h

   1 /*      $NetBSD: ldo.h,v 1.4 2015/10/08 13:21:00 mbalmer Exp $  */
   2
   3 /*
   4 ** Id: ldo.h,v 2.22 2015/05/22 17:48:19 roberto Exp
   5 ** Stack and Call structure of Lua
   6 ** See Copyright Notice in lua.h
   7 */
   8
   9 #ifndef ldo_h
  10 #define ldo_h
  11
  12
  13 #include "lobject.h"
  14 #include "lstate.h"
  15 #include "lzio.h"
  16
  17
  18 #define luaD_checkstack(L,n)    if (L->stack_last - L->top <= (n)) \
  19                                     luaD_growstack(L, n); else condmovestack(L);
  20
  21
  22 #define incr_top(L) {L->top++; luaD_checkstack(L,0);}
  23
  24 #define savestack(L,p)          ((char *)(p) - (char *)L->stack)
  25 #define restorestack(L,n)       ((TValue *)((char *)L->stack + (n)))
  26
  27
  28 /* type of protected functions, to be ran by 'runprotected' */
  29 typedef void (*Pfunc) (lua_State *L, void *ud);
  30
  31 LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name,
  32                                                   const char *mode);
  33 LUAI_FUNC void luaD_hook (lua_State *L, int event, int line);
  34 LUAI_FUNC int luaD_precall (lua_State *L, StkId func, int nresults);
  35 LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults,
  36                                         int allowyield);
  37 LUAI_FUNC int luaD_pcall (lua_State *L, Pfunc func, void *u,
  38                                         ptrdiff_t oldtop, ptrdiff_t ef);
  39 LUAI_FUNC int luaD_poscall (lua_State *L, StkId firstResult, int nres);
  40 LUAI_FUNC void luaD_reallocstack (lua_State *L, int newsize);
  41 LUAI_FUNC void luaD_growstack (lua_State *L, int n);
  42 LUAI_FUNC void luaD_shrinkstack (lua_State *L);
  43
  44 LUAI_FUNC l_noret luaD_throw (lua_State *L, int errcode);
  45 LUAI_FUNC int luaD_rawrunprotected (lua_State *L, Pfunc f, void *ud);
  46
  47 #endif
  48