small steps towards yields in iterators and tag methods

1 files changed, 8 insertions, 2 deletions

diff --git a/ldo.h b/ldo.h
index fc13692c..8e2e026b 100644
--- a/ldo.h
+++ b/ldo.h
@@ -1,5 +1,5 @@
 /*
-** $Id: ldo.h,v 1.58 2003/08/27 21:01:44 roberto Exp roberto $
+** $Id: ldo.h,v 2.1 2003/12/10 12:13:36 roberto Exp roberto $
 ** Stack and Call structure of Lua
 ** See Copyright Notice in lua.h
 */
@@ -38,13 +38,19 @@
 #define restoreci(L,n)          ((CallInfo *)((char *)L->base_ci + (n)))
 
 
+/* results from luaD_precall */
+#define PCRLUA          0       /* initiated a call to a Lua function */
+#define PCRC            1       /* did a call to a C function */
+#define PCRYIELD        2       /* C funtion yielded */
+
+
 /* type of protected functions, to be ran by `runprotected' */
 typedef void (*Pfunc) (lua_State *L, void *ud);
 
 void luaD_resetprotection (lua_State *L);
 int luaD_protectedparser (lua_State *L, ZIO *z, const char *name);
 void luaD_callhook (lua_State *L, int event, int line);
-StkId luaD_precall (lua_State *L, StkId func);
+int luaD_precall (lua_State *L, StkId func, int nresults);
 void luaD_call (lua_State *L, StkId func, int nResults);
 int luaD_pcall (lua_State *L, Pfunc func, void *u,
                 ptrdiff_t oldtop, ptrdiff_t ef);