zombiezen.com/go/lua@v0.0.0-20231013005828-290725fb9140/internal/lua54/ltable.h (about)

     1  /*
     2  ** $Id: ltable.h $
     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)->u.next)
    16  
    17  
    18  /*
    19  ** Clear all bits of fast-access metamethods, which means that the table
    20  ** may have any of these metamethods. (First access that fails after the
    21  ** clearing will set the bit again.)
    22  */
    23  #define invalidateTMcache(t)	((t)->flags &= ~maskflags)
    24  
    25  
    26  /* true when 't' is using 'dummynode' as its hash part */
    27  #define isdummy(t)		((t)->lastfree == NULL)
    28  
    29  
    30  /* allocated size for hash nodes */
    31  #define allocsizenode(t)	(isdummy(t) ? 0 : sizenode(t))
    32  
    33  
    34  /* returns the Node, given the value of a table entry */
    35  #define nodefromval(v)	cast(Node *, (v))
    36  
    37  
    38  LUAI_FUNC const TValue *luaH_getint (Table *t, lua_Integer key);
    39  LUAI_FUNC void luaH_setint (lua_State *L, Table *t, lua_Integer key,
    40                                                      TValue *value);
    41  LUAI_FUNC const TValue *luaH_getshortstr (Table *t, TString *key);
    42  LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key);
    43  LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key);
    44  LUAI_FUNC void luaH_newkey (lua_State *L, Table *t, const TValue *key,
    45                                                      TValue *value);
    46  LUAI_FUNC void luaH_set (lua_State *L, Table *t, const TValue *key,
    47                                                   TValue *value);
    48  LUAI_FUNC void luaH_finishset (lua_State *L, Table *t, const TValue *key,
    49                                         const TValue *slot, TValue *value);
    50  LUAI_FUNC Table *luaH_new (lua_State *L);
    51  LUAI_FUNC void luaH_resize (lua_State *L, Table *t, unsigned int nasize,
    52                                                      unsigned int nhsize);
    53  LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, unsigned int nasize);
    54  LUAI_FUNC void luaH_free (lua_State *L, Table *t);
    55  LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key);
    56  LUAI_FUNC lua_Unsigned luaH_getn (Table *t);
    57  LUAI_FUNC unsigned int luaH_realasize (const Table *t);
    58  
    59  
    60  #if defined(LUA_DEBUG)
    61  LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key);
    62  #endif
    63  
    64  
    65  #endif