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new API for registry and C upvalues + new implementation for references

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Roberto Ierusalimschy
2001-10-17 19:12:57 -02:00
parent 7cd37142f4
commit 1e81da51ba
10 changed files with 111 additions and 123 deletions
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18
lua.h
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@@ -1,5 +1,5 @@
/*
** $Id: lua.h,v 1.103 2001/08/31 19:46:07 roberto Exp $
** $Id: lua.h,v 1.104 2001/10/11 21:41:21 roberto Exp $
** Lua - An Extensible Extension Language
** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
** e-mail: info@lua.org
@@ -35,6 +35,13 @@
#define LUA_MULTRET (-1)
/* pseudo-index for registry */
#define LUA_REGISTRYINDEX (-10000)
/* pseudo-indices for upvalues */
#define lua_upvalueindex(i) (LUA_REGISTRYINDEX-(i))
/* error codes for `lua_do*' and the like */
#define LUA_ERRRUN 1
#define LUA_ERRFILE 2
@@ -160,9 +167,7 @@ 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 int lua_getref (lua_State *L, int ref);
LUA_API void lua_newtable (lua_State *L);
LUA_API void lua_getregistry (lua_State *L);
LUA_API void lua_getweakregistry (lua_State *L);
@@ -246,14 +251,19 @@ LUA_API int lua_getweakmode (lua_State *L, int index);
#define lua_pushliteral(L, s) lua_pushlstring(L, s, \
(sizeof(s)/sizeof(lua_char))-1)
#define lua_getregistry(L) lua_pushvalue(L, LUA_REGISTRYINDEX);
#define lua_getref(L,ref) lua_rawgeti(L, LUA_REGISTRYINDEX, ref)
/*
** compatibility macros
** compatibility macros and functions
*/
#define lua_newtag(L) lua_newtype(L, NULL, LUA_TNONE)
#define lua_typename lua_tag2name
LUA_API void lua_pushupvalues (lua_State *L);
#endif