mirror of
https://github.com/lua/lua.git
synced 2024-11-24 02:33:48 +08:00
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/*
|
|
** $Id: ltable.h,v 2.20 2014/09/04 18:15:29 roberto Exp roberto $
|
|
** 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)->i_key.nk.next)
|
|
|
|
|
|
/* 'const' to avoid wrong writings that can mess up field 'next' */
|
|
#define gkey(n) cast(const TValue*, (&(n)->i_key.tvk))
|
|
|
|
/*
|
|
** writable version of 'gkey'; allows updates to individual fields,
|
|
** but not to the whole (which has incompatible type)
|
|
*/
|
|
#define wgkey(n) (&(n)->i_key.nk)
|
|
|
|
#define invalidateTMcache(t) ((t)->flags = 0)
|
|
|
|
|
|
/* returns the key, given the value of a table entry */
|
|
#define keyfromval(v) \
|
|
(gkey(cast(Node *, cast(char *, (v)) - offsetof(Node, i_val))))
|
|
|
|
|
|
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 TValue *luaH_newkey (lua_State *L, Table *t, const TValue *key);
|
|
LUAI_FUNC TValue *luaH_set (lua_State *L, Table *t, const TValue *key);
|
|
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 int luaH_getn (Table *t);
|
|
|
|
|
|
#if defined(LUA_DEBUG)
|
|
LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key);
|
|
LUAI_FUNC int luaH_isdummy (Node *n);
|
|
#endif
|
|
|
|
|
|
#endif
|