64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
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/*
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** $Id: ltable.h $
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** Lua tables (hash)
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** See Copyright Notice in lua.h
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*/
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#ifndef ltable_h
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#define ltable_h
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#include "lobject.h"
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#define gnode(t,i) (&(t)->node[i])
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#define gval(n) (&(n)->i_val)
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#define gnext(n) ((n)->u.next)
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/*
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** Clear all bits of fast-access metamethods, which means that the table
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** may have any of these metamethods. (First access that fails after the
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** clearing will set the bit again.)
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*/
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#define invalidateTMcache(t) ((t)->flags &= ~maskflags)
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/* true when 't' is using 'dummynode' as its hash part */
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#define isdummy(t) ((t)->lastfree == NULL)
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/* allocated size for hash nodes */
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#define allocsizenode(t) (isdummy(t) ? 0 : sizenode(t))
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/* returns the Node, given the value of a table entry */
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#define nodefromval(v) cast(Node *, (v))
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LUAI_FUNC const TValue *luaH_getint (Table *t, lua_Integer key);
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LUAI_FUNC void luaH_setint (lua_State *L, Table *t, lua_Integer key,
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TValue *value);
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LUAI_FUNC const TValue *luaH_getshortstr (Table *t, TString *key);
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LUAI_FUNC const TValue *luaH_getstr (Table *t, TString *key);
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LUAI_FUNC const TValue *luaH_get (Table *t, const TValue *key);
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LUAI_FUNC void luaH_set (lua_State *L, Table *t, const TValue *key,
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TValue *value);
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LUAI_FUNC void luaH_finishset (lua_State *L, Table *t, const TValue *key,
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const TValue *slot, TValue *value);
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LUAI_FUNC Table *luaH_new (lua_State *L);
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LUAI_FUNC void luaH_resize (lua_State *L, Table *t, unsigned int nasize,
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unsigned int nhsize);
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LUAI_FUNC void luaH_resizearray (lua_State *L, Table *t, unsigned int nasize);
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LUAI_FUNC void luaH_free (lua_State *L, Table *t);
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LUAI_FUNC int luaH_next (lua_State *L, Table *t, StkId key);
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LUAI_FUNC lua_Unsigned luaH_getn (Table *t);
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LUAI_FUNC unsigned int luaH_realasize (const Table *t);
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#if defined(LUA_DEBUG)
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LUAI_FUNC Node *luaH_mainposition (const Table *t, const TValue *key);
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#endif
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#endif
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