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-rw-r--r--src/lj_obj.h229
1 files changed, 119 insertions, 110 deletions
diff --git a/src/lj_obj.h b/src/lj_obj.h
index 819930c6..f29ecb0b 100644
--- a/src/lj_obj.h
+++ b/src/lj_obj.h
@@ -211,111 +211,6 @@ typedef const TValue cTValue;
211#define LJ_TISGCV (LJ_TSTR+1) 211#define LJ_TISGCV (LJ_TSTR+1)
212#define LJ_TISTABUD LJ_TTAB 212#define LJ_TISTABUD LJ_TTAB
213 213
214/* -- TValue getters/setters ---------------------------------------------- */
215
216/* Macros to test types. */
217#define itype(o) ((o)->it)
218#define tvisnil(o) (itype(o) == LJ_TNIL)
219#define tvisfalse(o) (itype(o) == LJ_TFALSE)
220#define tvistrue(o) (itype(o) == LJ_TTRUE)
221#define tvisbool(o) (tvisfalse(o) || tvistrue(o))
222#if LJ_64
223#define tvislightud(o) (((int32_t)itype(o) >> 15) == -2)
224#else
225#define tvislightud(o) (itype(o) == LJ_TLIGHTUD)
226#endif
227#define tvisstr(o) (itype(o) == LJ_TSTR)
228#define tvisfunc(o) (itype(o) == LJ_TFUNC)
229#define tvisthread(o) (itype(o) == LJ_TTHREAD)
230#define tvisproto(o) (itype(o) == LJ_TPROTO)
231#define tvistab(o) (itype(o) == LJ_TTAB)
232#define tvisudata(o) (itype(o) == LJ_TUDATA)
233#define tvisnum(o) (itype(o) <= LJ_TISNUM)
234
235#define tvistruecond(o) (itype(o) < LJ_TISTRUECOND)
236#define tvispri(o) (itype(o) >= LJ_TISPRI)
237#define tvistabud(o) (itype(o) <= LJ_TISTABUD) /* && !tvisnum() */
238#define tvisgcv(o) ((itype(o) - LJ_TISGCV) > (LJ_TNUMX - LJ_TISGCV))
239
240/* Special macros to test numbers for NaN, +0, -0, +1 and raw equality. */
241#define tvisnan(o) ((o)->n != (o)->n)
242#define tvispzero(o) ((o)->u64 == 0)
243#define tvismzero(o) ((o)->u64 == U64x(80000000,00000000))
244#define tvispone(o) ((o)->u64 == U64x(3ff00000,00000000))
245#define rawnumequal(o1, o2) ((o1)->u64 == (o2)->u64)
246
247/* Macros to convert type ids. */
248#if LJ_64
249#define itypemap(o) \
250 (tvisnum(o) ? ~LJ_TNUMX : tvislightud(o) ? ~LJ_TLIGHTUD : ~itype(o))
251#else
252#define itypemap(o) (tvisnum(o) ? ~LJ_TNUMX : ~itype(o))
253#endif
254
255/* Macros to get tagged values. */
256#define gcval(o) (gcref((o)->gcr))
257#define boolV(o) check_exp(tvisbool(o), (LJ_TFALSE - (o)->it))
258#if LJ_64
259#define lightudV(o) check_exp(tvislightud(o), \
260 (void *)((o)->u64 & U64x(00007fff,ffffffff)))
261#else
262#define lightudV(o) check_exp(tvislightud(o), gcrefp((o)->gcr, void))
263#endif
264#define gcV(o) check_exp(tvisgcv(o), gcval(o))
265#define strV(o) check_exp(tvisstr(o), &gcval(o)->str)
266#define funcV(o) check_exp(tvisfunc(o), &gcval(o)->fn)
267#define threadV(o) check_exp(tvisthread(o), &gcval(o)->th)
268#define protoV(o) check_exp(tvisproto(o), &gcval(o)->pt)
269#define tabV(o) check_exp(tvistab(o), &gcval(o)->tab)
270#define udataV(o) check_exp(tvisudata(o), &gcval(o)->ud)
271#define numV(o) check_exp(tvisnum(o), (o)->n)
272
273/* Macros to set tagged values. */
274#define setitype(o, i) ((o)->it = (i))
275#define setnilV(o) ((o)->it = LJ_TNIL)
276#define setboolV(o, x) ((o)->it = LJ_TFALSE-(x))
277
278#if LJ_64
279#define checklightudptr(L, p) \
280 (((uint64_t)(p) >> 47) ? (lj_err_msg(L, LJ_ERR_BADLU), NULL) : (p))
281#define setlightudV(o, x) \
282 ((o)->u64 = (uint64_t)(x) | (((uint64_t)0xffff) << 48))
283#define setcont(o, x) \
284 ((o)->u64 = (uint64_t)(x) - (uint64_t)lj_vm_asm_begin)
285#else
286#define checklightudptr(L, p) (p)
287#define setlightudV(o, x) \
288 { TValue *i_o = (o); \
289 setgcrefp(i_o->gcr, (x)); i_o->it = LJ_TLIGHTUD; }
290#define setcont(o, x) \
291 { TValue *i_o = (o); \
292 setgcrefp(i_o->gcr, (x)); i_o->it = LJ_TLIGHTUD; }
293#endif
294
295#define tvchecklive(g, o) \
296 lua_assert(!tvisgcv(o) || \
297 ((~itype(o) == gcval(o)->gch.gct) && !isdead(g, gcval(o))))
298
299#define setgcV(L, o, x, itype) \
300 { TValue *i_o = (o); \
301 setgcrefp(i_o->gcr, &(x)->nextgc); i_o->it = itype; \
302 tvchecklive(G(L), i_o); }
303#define setstrV(L, o, x) setgcV(L, o, x, LJ_TSTR)
304#define setthreadV(L, o, x) setgcV(L, o, x, LJ_TTHREAD)
305#define setprotoV(L, o, x) setgcV(L, o, x, LJ_TPROTO)
306#define setfuncV(L, o, x) setgcV(L, o, &(x)->l, LJ_TFUNC)
307#define settabV(L, o, x) setgcV(L, o, x, LJ_TTAB)
308#define setudataV(L, o, x) setgcV(L, o, x, LJ_TUDATA)
309
310#define setnumV(o, x) ((o)->n = (x))
311#define setnanV(o) ((o)->u64 = U64x(fff80000,00000000))
312#define setintV(o, i) ((o)->n = cast_num((int32_t)(i)))
313
314/* Copy tagged values. */
315#define copyTV(L, o1, o2) \
316 { cTValue *i_o2 = (o2); TValue *i_o1 = (o1); \
317 *i_o1 = *i_o2; tvchecklive(G(L), i_o1); }
318
319/* -- String object ------------------------------------------------------- */ 214/* -- String object ------------------------------------------------------- */
320 215
321/* String object header. String payload follows. */ 216/* String object header. String payload follows. */
@@ -694,7 +589,125 @@ typedef union GCobj {
694#define gco2ud(o) check_exp((o)->gch.gct == ~LJ_TUDATA, &(o)->ud) 589#define gco2ud(o) check_exp((o)->gch.gct == ~LJ_TUDATA, &(o)->ud)
695 590
696/* Macro to convert any collectable object into a GCobj pointer. */ 591/* Macro to convert any collectable object into a GCobj pointer. */
697#define obj2gco(v) (cast(GCobj *, (v))) 592#define obj2gco(v) ((GCobj *)(v))
593
594/* -- TValue getters/setters ---------------------------------------------- */
595
596#ifdef LUA_USE_ASSERT
597#include "lj_gc.h"
598#endif
599
600/* Macros to test types. */
601#define itype(o) ((o)->it)
602#define tvisnil(o) (itype(o) == LJ_TNIL)
603#define tvisfalse(o) (itype(o) == LJ_TFALSE)
604#define tvistrue(o) (itype(o) == LJ_TTRUE)
605#define tvisbool(o) (tvisfalse(o) || tvistrue(o))
606#if LJ_64
607#define tvislightud(o) (((int32_t)itype(o) >> 15) == -2)
608#else
609#define tvislightud(o) (itype(o) == LJ_TLIGHTUD)
610#endif
611#define tvisstr(o) (itype(o) == LJ_TSTR)
612#define tvisfunc(o) (itype(o) == LJ_TFUNC)
613#define tvisthread(o) (itype(o) == LJ_TTHREAD)
614#define tvisproto(o) (itype(o) == LJ_TPROTO)
615#define tvistab(o) (itype(o) == LJ_TTAB)
616#define tvisudata(o) (itype(o) == LJ_TUDATA)
617#define tvisnum(o) (itype(o) <= LJ_TISNUM)
618
619#define tvistruecond(o) (itype(o) < LJ_TISTRUECOND)
620#define tvispri(o) (itype(o) >= LJ_TISPRI)
621#define tvistabud(o) (itype(o) <= LJ_TISTABUD) /* && !tvisnum() */
622#define tvisgcv(o) ((itype(o) - LJ_TISGCV) > (LJ_TNUMX - LJ_TISGCV))
623
624/* Special macros to test numbers for NaN, +0, -0, +1 and raw equality. */
625#define tvisnan(o) ((o)->n != (o)->n)
626#define tvispzero(o) ((o)->u64 == 0)
627#define tvismzero(o) ((o)->u64 == U64x(80000000,00000000))
628#define tvispone(o) ((o)->u64 == U64x(3ff00000,00000000))
629#define rawnumequal(o1, o2) ((o1)->u64 == (o2)->u64)
630
631/* Macros to convert type ids. */
632#if LJ_64
633#define itypemap(o) \
634 (tvisnum(o) ? ~LJ_TNUMX : tvislightud(o) ? ~LJ_TLIGHTUD : ~itype(o))
635#else
636#define itypemap(o) (tvisnum(o) ? ~LJ_TNUMX : ~itype(o))
637#endif
638
639/* Macros to get tagged values. */
640#define gcval(o) (gcref((o)->gcr))
641#define boolV(o) check_exp(tvisbool(o), (LJ_TFALSE - (o)->it))
642#if LJ_64
643#define lightudV(o) \
644 check_exp(tvislightud(o), (void *)((o)->u64 & U64x(00007fff,ffffffff)))
645#else
646#define lightudV(o) check_exp(tvislightud(o), gcrefp((o)->gcr, void))
647#endif
648#define gcV(o) check_exp(tvisgcv(o), gcval(o))
649#define strV(o) check_exp(tvisstr(o), &gcval(o)->str)
650#define funcV(o) check_exp(tvisfunc(o), &gcval(o)->fn)
651#define threadV(o) check_exp(tvisthread(o), &gcval(o)->th)
652#define protoV(o) check_exp(tvisproto(o), &gcval(o)->pt)
653#define tabV(o) check_exp(tvistab(o), &gcval(o)->tab)
654#define udataV(o) check_exp(tvisudata(o), &gcval(o)->ud)
655#define numV(o) check_exp(tvisnum(o), (o)->n)
656
657/* Macros to set tagged values. */
658#define setitype(o, i) ((o)->it = (i))
659#define setnilV(o) ((o)->it = LJ_TNIL)
660#define setboolV(o, x) ((o)->it = LJ_TFALSE-(uint32_t)(x))
661
662static LJ_AINLINE void setlightudV(TValue *o, void *p)
663{
664#if LJ_64
665 o->u64 = (uint64_t)p | (((uint64_t)0xffff) << 48);
666#else
667 setgcrefp(o->gcr, p); setitype(o, LJ_TLIGHTUD);
668#endif
669}
670
671#if LJ_64
672#define checklightudptr(L, p) \
673 (((uint64_t)(p) >> 47) ? (lj_err_msg(L, LJ_ERR_BADLU), NULL) : (p))
674#define setcont(o, f) \
675 ((o)->u64 = (uint64_t)(void *)(f) - (uint64_t)lj_vm_asm_begin)
676#else
677#define checklightudptr(L, p) (p)
678#define setcont(o, f) setlightudV((o), (void *)(f))
679#endif
680
681#define tvchecklive(L, o) \
682 UNUSED(L), lua_assert(!tvisgcv(o) || \
683 ((~itype(o) == gcval(o)->gch.gct) && !isdead(G(L), gcval(o))))
684
685static LJ_AINLINE void setgcV(lua_State *L, TValue *o, GCobj *v, uint32_t itype)
686{
687 setgcref(o->gcr, v); setitype(o, itype); tvchecklive(L, o);
688}
689
690#define define_setV(name, type, tag) \
691static LJ_AINLINE void name(lua_State *L, TValue *o, type *v) \
692{ \
693 setgcV(L, o, obj2gco(v), tag); \
694}
695define_setV(setstrV, GCstr, LJ_TSTR)
696define_setV(setthreadV, lua_State, LJ_TTHREAD)
697define_setV(setprotoV, GCproto, LJ_TPROTO)
698define_setV(setfuncV, GCfunc, LJ_TFUNC)
699define_setV(settabV, GCtab, LJ_TTAB)
700define_setV(setudataV, GCudata, LJ_TUDATA)
701
702#define setnumV(o, x) ((o)->n = (x))
703#define setnanV(o) ((o)->u64 = U64x(fff80000,00000000))
704#define setintV(o, i) ((o)->n = cast_num((int32_t)(i)))
705
706/* Copy tagged values. */
707static LJ_AINLINE void copyTV(lua_State *L, TValue *o1, const TValue *o2)
708{
709 *o1 = *o2; tvchecklive(L, o1);
710}
698 711
699/* -- Number to integer conversion ---------------------------------------- */ 712/* -- Number to integer conversion ---------------------------------------- */
700 713
@@ -722,8 +735,4 @@ LJ_DATA const char *const lj_obj_itypename[~LJ_TNUMX+1];
722/* Compare two objects without calling metamethods. */ 735/* Compare two objects without calling metamethods. */
723LJ_FUNC int lj_obj_equal(cTValue *o1, cTValue *o2); 736LJ_FUNC int lj_obj_equal(cTValue *o1, cTValue *o2);
724 737
725#ifdef LUA_USE_ASSERT
726#include "lj_gc.h"
727#endif
728
729#endif 738#endif