lua/doxygen/ltable_8h_source.html

/*

** $Id: ltable.h $

** Lua tables (hash)

** See Copyright Notice in lua.h

*/


#ifndef ltable_h

#define ltable_h


#include "lobject.h"


#define gnode(t,i)  (&(t)->node[i])

#define gval(n)     (&(n)->i_val)

#define gnext(n)    ((n)->u.next)


/*

** Clear all bits of fast-access metamethods, which means that the table

** may have any of these metamethods. (First access that fails after the

** clearing will set the bit again.)

*/

#define invalidateTMcache(t)    ((t)->flags &= ~maskflags)


/* true when 't' is using 'dummynode' as its hash part */

#define isdummy(t)      ((t)->lastfree == NULL)


/* allocated size for hash nodes */

#define allocsizenode(t)    (isdummy(t) ? 0 : sizenode(t))


/* returns the Node, given the value of a table entry */

#define nodefromval(v)  cast(Node *, (v))


LUAI_FUNC const TValue *luaH_getint (Table *t, lua_Integer key);

LUAI_FUNC void luaH_setint (lua_State *L, Table *t, lua_Integer key,

                                                    TValue *value);

LUAI_FUNC const TValue *luaH_getshortstr (Table *t, TString *key);

LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key);

LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key);

LUAI_FUNC void luaH_newkey (lua_State *L, Table *t, const TValue *key,

                                                    TValue *value);

LUAI_FUNC void luaH_set (lua_State *L, Table *t, const TValue *key,

                                                 TValue *value);

LUAI_FUNC void luaH_finishset (lua_State *L, Table *t, const TValue *key,

                                       const TValue *slot, TValue *value);

LUAI_FUNC Table *luaH_new (lua_State *L);

LUAI_FUNC void luaH_resize (lua_State *L, Table *t, unsigned int nasize,

                                                    unsigned int nhsize);

LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, unsigned int nasize);

LUAI_FUNC void luaH_free (lua_State *L, Table *t);

LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key);

LUAI_FUNC lua_Unsigned luaH_getn (Table *t);

LUAI_FUNC unsigned int luaH_realasize (const Table *t);


#if defined(LUA_DEBUG)

LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key);

LUAI_FUNC int luaH_isdummy (const Table *t);

#endif


#endif