ceph/src/civetweb/src/third_party/lua-5.3.3/src/ltable.h

   1 /*
   2 ** $Id: ltable.h,v 2.21 2015/11/03 15:47:30 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 gval(n)         (&(n)->i_val)
  15 #define gnext(n)        ((n)->i_key.nk.next)
  16
  17
  18 /* 'const' to avoid wrong writings that can mess up field 'next' */
  19 #define gkey(n)         cast(const TValue*, (&(n)->i_key.tvk))
  20
  21 /*
  22 ** writable version of 'gkey'; allows updates to individual fields,
  23 ** but not to the whole (which has incompatible type)
  24 */
  25 #define wgkey(n)                (&(n)->i_key.nk)
  26
  27 #define invalidateTMcache(t)    ((t)->flags = 0)
  28
  29
  30 /* returns the key, given the value of a table entry */
  31 #define keyfromval(v) \
  32   (gkey(cast(Node *, cast(char *, (v)) - offsetof(Node, i_val))))
  33
  34
  35 LUAI_FUNC const TValue *luaH_getint (Table *t, lua_Integer key);
  36 LUAI_FUNC void luaH_setint (lua_State *L, Table *t, lua_Integer key,
  37                                                     TValue *value);
  38 LUAI_FUNC const TValue *luaH_getshortstr (Table *t, TString *key);
  39 LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key);
  40 LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key);
  41 LUAI_FUNC TValue *luaH_newkey (lua_State *L, Table *t, const TValue *key);
  42 LUAI_FUNC TValue *luaH_set (lua_State *L, Table *t, const TValue *key);
  43 LUAI_FUNC Table *luaH_new (lua_State *L);
  44 LUAI_FUNC void luaH_resize (lua_State *L, Table *t, unsigned int nasize,
  45                                                     unsigned int nhsize);
  46 LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, unsigned int nasize);
  47 LUAI_FUNC void luaH_free (lua_State *L, Table *t);
  48 LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key);
  49 LUAI_FUNC int luaH_getn (Table *t);
  50
  51
  52 #if defined(LUA_DEBUG)
  53 LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key);
  54 LUAI_FUNC int luaH_isdummy (Node *n);
  55 #endif
  56
  57
  58 #endif