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lua
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new lua_Objects are created below the C2lua stack, so most API functions 

don't need to adjust stack. So lua_getref does not change the stack,
and lua_pushref can use it as a macro.
This commit is contained in:
Roberto Ierusalimschy 1997-06-06 17:54:40 -03:00
parent e1249970c2
commit d68d8287aa
1 changed files with 3 additions and 2 deletions
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5
lua.h
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@ -2,7 +2,7 @@
** LUA - An Extensible Extension Language ** LUA - An Extensible Extension Language
** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil ** TeCGraf: Grupo de Tecnologia em Computacao Grafica, PUC-Rio, Brazil
** e-mail: lua@tecgraf.puc-rio.br ** e-mail: lua@tecgraf.puc-rio.br
** $Id: lua.h,v 4.3 1997/04/15 16:52:20 roberto Exp roberto $ ** $Id: lua.h,v 4.4 1997/05/26 14:42:51 roberto Exp roberto $
*/ */
@ -78,7 +78,6 @@ int lua_tag (lua_Object object);
int lua_ref (int lock); /* In: value */ int lua_ref (int lock); /* In: value */
lua_Object lua_getref (int ref); lua_Object lua_getref (int ref);
void lua_pushref (int ref);
void lua_unref (int ref); void lua_unref (int ref);
lua_Object lua_createtable (void); lua_Object lua_createtable (void);
@ -90,6 +89,8 @@ long lua_collectgarbage (long limit);
/* =============================================================== */ /* =============================================================== */
/* some useful macros */ /* some useful macros */
#define lua_pushref(ref) (lua_pushobject(lua_getref(ref)))
#define lua_refobject(o,l) (lua_pushobject(o), lua_ref(l)) #define lua_refobject(o,l) (lua_pushobject(o), lua_ref(l))
#define lua_register(n,f) (lua_pushcfunction(f), lua_setglobal(n)) #define lua_register(n,f) (lua_pushcfunction(f), lua_setglobal(n))