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Undo simplification of tail calls (commit 901d760)

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Not that simpler and slower.
This commit is contained in:
Roberto Ierusalimschy 2021-08-18 11:21:33 -03:00
parent a393ac2554
commit 41871f1803
3 changed files with 48 additions and 48 deletions
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15
ldo.h
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@ -49,18 +49,6 @@
luaD_checkstackaux(L, (fsize), luaC_checkGC(L), (void)0)
/*
** 'luaD_precall' is used for regular calls, when it needs the
** number of results, and in tail calls, when it needs the 'delta'
** (correction of base for vararg functions). The argument 'retdel'
** codes these two options. A number of results is represented by
** itself, while a delta is represented by 'delta2retdel(delta)'
*/
#define delta2retdel(d) (-(d) + LUA_MULTRET - 1)
#define retdel2delta(d) (-(d) + LUA_MULTRET - 1)
#define isdelta(rd) ((rd) < LUA_MULTRET)
/* type of protected functions, to be ran by 'runprotected' */
typedef void (*Pfunc) (lua_State *L, void *ud);
@ -70,7 +58,8 @@ LUAI_FUNC int luaD_protectedparser (lua_State *L, ZIO *z, const char *name,
LUAI_FUNC void luaD_hook (lua_State *L, int event, int line,
int fTransfer, int nTransfer);
LUAI_FUNC void luaD_hookcall (lua_State *L, CallInfo *ci);
LUAI_FUNC CallInfo *luaD_precall (lua_State *L, StkId func, int retdel);
LUAI_FUNC void luaD_pretailcall (lua_State *L, CallInfo *ci, StkId func, int n);
LUAI_FUNC CallInfo *luaD_precall (lua_State *L, StkId func, int nResults);
LUAI_FUNC void luaD_call (lua_State *L, StkId func, int nResults);
LUAI_FUNC void luaD_callnoyield (lua_State *L, StkId func, int nResults);
LUAI_FUNC void luaD_tryfuncTM (lua_State *L, StkId func);