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tables of globals accessible through pseudo-index in C API

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Roberto Ierusalimschy
2001-10-31 17:58:11 -02:00
parent 46347d768e
commit af59848219
7 changed files with 31 additions and 35 deletions
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13
lua.h
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@@ -1,5 +1,5 @@
/*
** $Id: lua.h,v 1.105 2001/10/17 21:12:57 roberto Exp $
** $Id: lua.h,v 1.106 2001/10/31 19:40:14 roberto Exp roberto $
** Lua - An Extensible Extension Language
** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
** e-mail: info@lua.org
@@ -30,11 +30,12 @@
#define LUA_MULTRET (-1)
/* pseudo-index for registry */
/*
** pseudo-indices
*/
#define LUA_REGISTRYINDEX (-10000)
/* pseudo-indices for upvalues */
#define lua_upvalueindex(i) (LUA_REGISTRYINDEX-(i))
#define LUA_GLOBALSINDEX (-10001)
#define lua_upvalueindex(i) (LUA_GLOBALSINDEX-(i))
/* error codes for `lua_do*' and the like */
@@ -160,7 +161,6 @@ LUA_API void lua_getglobal (lua_State *L, const lua_char *name);
LUA_API void lua_gettable (lua_State *L, int index);
LUA_API void lua_rawget (lua_State *L, int index);
LUA_API void lua_rawgeti (lua_State *L, int index, int n);
LUA_API void lua_getglobals (lua_State *L);
LUA_API void lua_gettagmethod (lua_State *L, int tag, const lua_char *event);
LUA_API void lua_newtable (lua_State *L);
LUA_API void lua_getweakregistry (lua_State *L);
@@ -244,6 +244,7 @@ LUA_API int lua_getweakmode (lua_State *L, int index);
(sizeof(s)/sizeof(lua_char))-1)
#define lua_getregistry(L) lua_pushvalue(L, LUA_REGISTRYINDEX);
#define lua_getglobals(L) lua_pushvalue(L, LUA_GLOBALSINDEX);