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CallInfo has different fields for C functions and Lua functions

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Roberto Ierusalimschy
2002-07-16 11:26:56 -03:00
parent ce6b930464
commit e5146fb01f
5 changed files with 71 additions and 62 deletions
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21
lstate.h
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@@ -1,5 +1,5 @@
/*
** $Id: lstate.h,v 1.87 2002/07/08 18:21:33 roberto Exp roberto $
** $Id: lstate.h,v 1.88 2002/07/08 20:22:08 roberto Exp roberto $
** Global State
** See Copyright Notice in lua.h
*/
@@ -87,13 +87,22 @@ typedef struct stringtable {
*/
typedef struct CallInfo {
StkId base; /* base for called function */
const Instruction *savedpc;
StkId top; /* top for this function (when it's a Lua function) */
const Instruction **pc; /* points to `pc' variable in `luaV_execute' */
StkId *pb; /* points to `base' variable in `luaV_execute' */
int yield_results;
StkId top; /* top for this function */
const Instruction *savedpc; /* NULL means not a Lua function */
union {
struct { /* for Lua functions */
const Instruction **pc; /* points to `pc' variable in `luaV_execute' */
StkId *pb; /* points to `base' variable in `luaV_execute' */
} l;
struct { /* for C functions */
int yield_results;
} c;
} u;
} CallInfo;
#define isLua(ci) ((ci)->savedpc != NULL)
#define ci_func(ci) (clvalue((ci)->base - 1))