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  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)      (&(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
  46.