module/lua/ltable.h

   1 /*
   2 ** $Id: ltable.h,v 2.16.1.2 2013/08/30 15:49:41 roberto Exp $
   3 ** Lua tables (hash)
   4 ** See Copyright Notice in lua.h
   5 */
   6
   7 #ifndef ltable_h
   8 #define ltable_h
   9
  10 #include "lobject.h"
  11
  12
  13 #define gnode(t,i)      ((Node *)&(t)->node[i])
  14 #define gkey(n)         (&(n)->i_key.tvk)
  15 #define gval(n)         (&(n)->i_val)
  16 #define gnext(n)        ((n)->i_key.nk.next)
  17
  18 #define invalidateTMcache(t)    ((t)->flags = 0)
  19
  20 /* returns the key, given the value of a table entry */
  21 #define keyfromval(v) \
  22   (gkey(cast(Node *, cast(char *, (v)) - offsetof(Node, i_val))))
  23
  24
  25 LUAI_FUNC const TValue *luaH_getint (Table *t, int key);
  26 LUAI_FUNC void luaH_setint (lua_State *L, Table *t, int key, TValue *value);
  27 LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key);
  28 LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key);
  29 LUAI_FUNC TValue *luaH_newkey (lua_State *L, Table *t, const TValue *key);
  30 LUAI_FUNC TValue *luaH_set (lua_State *L, Table *t, const TValue *key);
  31 LUAI_FUNC Table *luaH_new (lua_State *L);
  32 LUAI_FUNC void luaH_resize (lua_State *L, Table *t, int nasize, int nhsize);
  33 LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, int nasize);
  34 LUAI_FUNC void luaH_free (lua_State *L, Table *t);
  35 LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key);
  36 LUAI_FUNC int luaH_getn (Table *t);
  37
  38
  39 #if defined(LUA_DEBUG)
  40 LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key);
  41 LUAI_FUNC int luaH_isdummy (Node *n);
  42 #endif
  43
  44
  45 #endif