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 38LUAI_FUNC const TValue *luaH_getint (Table *t, lua_Integer key); 39LUAI_FUNC void luaH_setint (lua_State *L, Table *t, lua_Integer key, 40 TValue *value); 41LUAI_FUNC const TValue *luaH_getshortstr (Table *t, TString *key); 42LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key); 43LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key); 44LUAI_FUNC void luaH_newkey (lua_State *L, Table *t, const TValue *key, 45 TValue *value); 46LUAI_FUNC void luaH_set (lua_State *L, Table *t, const TValue *key, 47 TValue *value); 48LUAI_FUNC void luaH_finishset (lua_State *L, Table *t, const TValue *key, 49 const TValue *slot, TValue *value); 50LUAI_FUNC Table *luaH_new (lua_State *L); 51LUAI_FUNC void luaH_resize (lua_State *L, Table *t, unsigned int nasize, 52 unsigned int nhsize); 53LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, unsigned int nasize); 54LUAI_FUNC void luaH_free (lua_State *L, Table *t); 55LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key); 56LUAI_FUNC lua_Unsigned luaH_getn (Table *t); 57LUAI_FUNC unsigned int luaH_realasize (const Table *t); 58 59 60#if defined(LUA_DEBUG) 61LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key); 62#endif 63 64 65#endif 66