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From Lua 5.2: Add rawlen(). Needs -DLUAJIT_ENABLE_LUA52COMPAT.

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This commit is contained in:
Mike Pall 2012-09-24 17:33:32 +02:00
parent 4c7c2c8319
commit ca0bb4881f
2 changed files with 27 additions and 0 deletions
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14
src/lib_base.c
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@ -199,6 +199,20 @@ LJLIB_CF(rawequal) LJLIB_REC(.)
return 1;
}
#if LJ_52
LJLIB_CF(rawlen) LJLIB_REC(.)
{
cTValue *o = L->base;
int32_t len;
if (L->top > o && tvisstr(o))
len = (int32_t)strV(o)->len;
else
len = (int32_t)lj_tab_len(lj_lib_checktab(L, 1));
setintV(L->top-1, len);
return 1;
}
#endif
LJLIB_CF(unpack)
{
GCtab *t = lj_lib_checktab(L, 1);

13
src/lj_ffrecord.c
View File

@ -213,6 +213,19 @@ static void LJ_FASTCALL recff_rawequal(jit_State *J, RecordFFData *rd)
} /* else: Interpreter will throw. */
}
#if LJ_52
static void LJ_FASTCALL recff_rawlen(jit_State *J, RecordFFData *rd)
{
TRef tr = J->base[0];
if (tref_isstr(tr))
J->base[0] = emitir(IRTI(IR_FLOAD), tr, IRFL_STR_LEN);
else if (tref_istab(tr))
J->base[0] = lj_ir_call(J, IRCALL_lj_tab_len, tr);
/* else: Interpreter will throw. */
UNUSED(rd);
}
#endif
/* Determine mode of select() call. */
int32_t lj_ffrecord_select_mode(jit_State *J, TRef tr, TValue *tv)
{