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Diffstat (limited to 'Build/source/libs/luajit/LuaJIT-src/src/lib_base.c')
-rw-r--r--Build/source/libs/luajit/LuaJIT-src/src/lib_base.c664
1 files changed, 664 insertions, 0 deletions
diff --git a/Build/source/libs/luajit/LuaJIT-src/src/lib_base.c b/Build/source/libs/luajit/LuaJIT-src/src/lib_base.c
new file mode 100644
index 00000000000..887fea7a58a
--- /dev/null
+++ b/Build/source/libs/luajit/LuaJIT-src/src/lib_base.c
@@ -0,0 +1,664 @@
+/*
+** Base and coroutine library.
+** Copyright (C) 2005-2015 Mike Pall. See Copyright Notice in luajit.h
+**
+** Major portions taken verbatim or adapted from the Lua interpreter.
+** Copyright (C) 1994-2011 Lua.org, PUC-Rio. See Copyright Notice in lua.h
+*/
+
+#include <stdio.h>
+
+#define lib_base_c
+#define LUA_LIB
+
+#include "lua.h"
+#include "lauxlib.h"
+#include "lualib.h"
+
+#include "lj_obj.h"
+#include "lj_gc.h"
+#include "lj_err.h"
+#include "lj_debug.h"
+#include "lj_str.h"
+#include "lj_tab.h"
+#include "lj_meta.h"
+#include "lj_state.h"
+#if LJ_HASFFI
+#include "lj_ctype.h"
+#include "lj_cconv.h"
+#endif
+#include "lj_bc.h"
+#include "lj_ff.h"
+#include "lj_dispatch.h"
+#include "lj_char.h"
+#include "lj_strscan.h"
+#include "lj_strfmt.h"
+#include "lj_lib.h"
+
+/* -- Base library: checks ------------------------------------------------ */
+
+#define LJLIB_MODULE_base
+
+LJLIB_ASM(assert) LJLIB_REC(.)
+{
+ GCstr *s;
+ lj_lib_checkany(L, 1);
+ s = lj_lib_optstr(L, 2);
+ if (s)
+ lj_err_callermsg(L, strdata(s));
+ else
+ lj_err_caller(L, LJ_ERR_ASSERT);
+ return FFH_UNREACHABLE;
+}
+
+/* ORDER LJ_T */
+LJLIB_PUSH("nil")
+LJLIB_PUSH("boolean")
+LJLIB_PUSH(top-1) /* boolean */
+LJLIB_PUSH("userdata")
+LJLIB_PUSH("string")
+LJLIB_PUSH("upval")
+LJLIB_PUSH("thread")
+LJLIB_PUSH("proto")
+LJLIB_PUSH("function")
+LJLIB_PUSH("trace")
+LJLIB_PUSH("cdata")
+LJLIB_PUSH("table")
+LJLIB_PUSH(top-9) /* userdata */
+LJLIB_PUSH("number")
+LJLIB_ASM_(type) LJLIB_REC(.)
+/* Recycle the lj_lib_checkany(L, 1) from assert. */
+
+/* -- Base library: iterators --------------------------------------------- */
+
+/* This solves a circular dependency problem -- change FF_next_N as needed. */
+LJ_STATIC_ASSERT((int)FF_next == FF_next_N);
+
+LJLIB_ASM(next)
+{
+ lj_lib_checktab(L, 1);
+ return FFH_UNREACHABLE;
+}
+
+#if LJ_52 || LJ_HASFFI
+static int ffh_pairs(lua_State *L, MMS mm)
+{
+ TValue *o = lj_lib_checkany(L, 1);
+ cTValue *mo = lj_meta_lookup(L, o, mm);
+ if ((LJ_52 || tviscdata(o)) && !tvisnil(mo)) {
+ L->top = o+1; /* Only keep one argument. */
+ copyTV(L, L->base-1-LJ_FR2, mo); /* Replace callable. */
+ return FFH_TAILCALL;
+ } else {
+ if (!tvistab(o)) lj_err_argt(L, 1, LUA_TTABLE);
+ if (LJ_FR2) { copyTV(L, o-1, o); o--; }
+ setfuncV(L, o-1, funcV(lj_lib_upvalue(L, 1)));
+ if (mm == MM_pairs) setnilV(o+1); else setintV(o+1, 0);
+ return FFH_RES(3);
+ }
+}
+#else
+#define ffh_pairs(L, mm) (lj_lib_checktab(L, 1), FFH_UNREACHABLE)
+#endif
+
+LJLIB_PUSH(lastcl)
+LJLIB_ASM(pairs) LJLIB_REC(xpairs 0)
+{
+ return ffh_pairs(L, MM_pairs);
+}
+
+LJLIB_NOREGUV LJLIB_ASM(ipairs_aux) LJLIB_REC(.)
+{
+ lj_lib_checktab(L, 1);
+ lj_lib_checkint(L, 2);
+ return FFH_UNREACHABLE;
+}
+
+LJLIB_PUSH(lastcl)
+LJLIB_ASM(ipairs) LJLIB_REC(xpairs 1)
+{
+ return ffh_pairs(L, MM_ipairs);
+}
+
+/* -- Base library: getters and setters ----------------------------------- */
+
+LJLIB_ASM_(getmetatable) LJLIB_REC(.)
+/* Recycle the lj_lib_checkany(L, 1) from assert. */
+
+LJLIB_ASM(setmetatable) LJLIB_REC(.)
+{
+ GCtab *t = lj_lib_checktab(L, 1);
+ GCtab *mt = lj_lib_checktabornil(L, 2);
+ if (!tvisnil(lj_meta_lookup(L, L->base, MM_metatable)))
+ lj_err_caller(L, LJ_ERR_PROTMT);
+ setgcref(t->metatable, obj2gco(mt));
+ if (mt) { lj_gc_objbarriert(L, t, mt); }
+ settabV(L, L->base-1-LJ_FR2, t);
+ return FFH_RES(1);
+}
+
+LJLIB_CF(getfenv) LJLIB_REC(.)
+{
+ GCfunc *fn;
+ cTValue *o = L->base;
+ if (!(o < L->top && tvisfunc(o))) {
+ int level = lj_lib_optint(L, 1, 1);
+ o = lj_debug_frame(L, level, &level);
+ if (o == NULL)
+ lj_err_arg(L, 1, LJ_ERR_INVLVL);
+ if (LJ_FR2) o--;
+ }
+ fn = &gcval(o)->fn;
+ settabV(L, L->top++, isluafunc(fn) ? tabref(fn->l.env) : tabref(L->env));
+ return 1;
+}
+
+LJLIB_CF(setfenv)
+{
+ GCfunc *fn;
+ GCtab *t = lj_lib_checktab(L, 2);
+ cTValue *o = L->base;
+ if (!(o < L->top && tvisfunc(o))) {
+ int level = lj_lib_checkint(L, 1);
+ if (level == 0) {
+ /* NOBARRIER: A thread (i.e. L) is never black. */
+ setgcref(L->env, obj2gco(t));
+ return 0;
+ }
+ o = lj_debug_frame(L, level, &level);
+ if (o == NULL)
+ lj_err_arg(L, 1, LJ_ERR_INVLVL);
+ if (LJ_FR2) o--;
+ }
+ fn = &gcval(o)->fn;
+ if (!isluafunc(fn))
+ lj_err_caller(L, LJ_ERR_SETFENV);
+ setgcref(fn->l.env, obj2gco(t));
+ lj_gc_objbarrier(L, obj2gco(fn), t);
+ setfuncV(L, L->top++, fn);
+ return 1;
+}
+
+LJLIB_ASM(rawget) LJLIB_REC(.)
+{
+ lj_lib_checktab(L, 1);
+ lj_lib_checkany(L, 2);
+ return FFH_UNREACHABLE;
+}
+
+LJLIB_CF(rawset) LJLIB_REC(.)
+{
+ lj_lib_checktab(L, 1);
+ lj_lib_checkany(L, 2);
+ L->top = 1+lj_lib_checkany(L, 3);
+ lua_rawset(L, 1);
+ return 1;
+}
+
+LJLIB_CF(rawequal) LJLIB_REC(.)
+{
+ cTValue *o1 = lj_lib_checkany(L, 1);
+ cTValue *o2 = lj_lib_checkany(L, 2);
+ setboolV(L->top-1, lj_obj_equal(o1, o2));
+ 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);
+ int32_t n, i = lj_lib_optint(L, 2, 1);
+ int32_t e = (L->base+3-1 < L->top && !tvisnil(L->base+3-1)) ?
+ lj_lib_checkint(L, 3) : (int32_t)lj_tab_len(t);
+ if (i > e) return 0;
+ n = e - i + 1;
+ if (n <= 0 || !lua_checkstack(L, n))
+ lj_err_caller(L, LJ_ERR_UNPACK);
+ do {
+ cTValue *tv = lj_tab_getint(t, i);
+ if (tv) {
+ copyTV(L, L->top++, tv);
+ } else {
+ setnilV(L->top++);
+ }
+ } while (i++ < e);
+ return n;
+}
+
+LJLIB_CF(select) LJLIB_REC(.)
+{
+ int32_t n = (int32_t)(L->top - L->base);
+ if (n >= 1 && tvisstr(L->base) && *strVdata(L->base) == '#') {
+ setintV(L->top-1, n-1);
+ return 1;
+ } else {
+ int32_t i = lj_lib_checkint(L, 1);
+ if (i < 0) i = n + i; else if (i > n) i = n;
+ if (i < 1)
+ lj_err_arg(L, 1, LJ_ERR_IDXRNG);
+ return n - i;
+ }
+}
+
+/* -- Base library: conversions ------------------------------------------- */
+
+LJLIB_ASM(tonumber) LJLIB_REC(.)
+{
+ int32_t base = lj_lib_optint(L, 2, 10);
+ if (base == 10) {
+ TValue *o = lj_lib_checkany(L, 1);
+ if (lj_strscan_numberobj(o)) {
+ copyTV(L, L->base-1-LJ_FR2, o);
+ return FFH_RES(1);
+ }
+#if LJ_HASFFI
+ if (tviscdata(o)) {
+ CTState *cts = ctype_cts(L);
+ CType *ct = lj_ctype_rawref(cts, cdataV(o)->ctypeid);
+ if (ctype_isenum(ct->info)) ct = ctype_child(cts, ct);
+ if (ctype_isnum(ct->info) || ctype_iscomplex(ct->info)) {
+ if (LJ_DUALNUM && ctype_isinteger_or_bool(ct->info) &&
+ ct->size <= 4 && !(ct->size == 4 && (ct->info & CTF_UNSIGNED))) {
+ int32_t i;
+ lj_cconv_ct_tv(cts, ctype_get(cts, CTID_INT32), (uint8_t *)&i, o, 0);
+ setintV(L->base-1-LJ_FR2, i);
+ return FFH_RES(1);
+ }
+ lj_cconv_ct_tv(cts, ctype_get(cts, CTID_DOUBLE),
+ (uint8_t *)&(L->base-1-LJ_FR2)->n, o, 0);
+ return FFH_RES(1);
+ }
+ }
+#endif
+ } else {
+ const char *p = strdata(lj_lib_checkstr(L, 1));
+ char *ep;
+ unsigned long ul;
+ if (base < 2 || base > 36)
+ lj_err_arg(L, 2, LJ_ERR_BASERNG);
+ ul = strtoul(p, &ep, base);
+ if (p != ep) {
+ while (lj_char_isspace((unsigned char)(*ep))) ep++;
+ if (*ep == '\0') {
+ if (LJ_DUALNUM && LJ_LIKELY(ul < 0x80000000u))
+ setintV(L->base-1-LJ_FR2, (int32_t)ul);
+ else
+ setnumV(L->base-1-LJ_FR2, (lua_Number)ul);
+ return FFH_RES(1);
+ }
+ }
+ }
+ setnilV(L->base-1-LJ_FR2);
+ return FFH_RES(1);
+}
+
+LJLIB_ASM(tostring) LJLIB_REC(.)
+{
+ TValue *o = lj_lib_checkany(L, 1);
+ cTValue *mo;
+ L->top = o+1; /* Only keep one argument. */
+ if (!tvisnil(mo = lj_meta_lookup(L, o, MM_tostring))) {
+ copyTV(L, L->base-1-LJ_FR2, mo); /* Replace callable. */
+ return FFH_TAILCALL;
+ }
+ lj_gc_check(L);
+ setstrV(L, L->base-1-LJ_FR2, lj_strfmt_obj(L, L->base));
+ return FFH_RES(1);
+}
+
+/* -- Base library: throw and catch errors -------------------------------- */
+
+LJLIB_CF(error)
+{
+ int32_t level = lj_lib_optint(L, 2, 1);
+ lua_settop(L, 1);
+ if (lua_isstring(L, 1) && level > 0) {
+ luaL_where(L, level);
+ lua_pushvalue(L, 1);
+ lua_concat(L, 2);
+ }
+ return lua_error(L);
+}
+
+LJLIB_ASM(pcall) LJLIB_REC(.)
+{
+ lj_lib_checkany(L, 1);
+ lj_lib_checkfunc(L, 2); /* For xpcall only. */
+ return FFH_UNREACHABLE;
+}
+LJLIB_ASM_(xpcall) LJLIB_REC(.)
+
+/* -- Base library: load Lua code ----------------------------------------- */
+
+static int load_aux(lua_State *L, int status, int envarg)
+{
+ if (status == 0) {
+ if (tvistab(L->base+envarg-1)) {
+ GCfunc *fn = funcV(L->top-1);
+ GCtab *t = tabV(L->base+envarg-1);
+ setgcref(fn->c.env, obj2gco(t));
+ lj_gc_objbarrier(L, fn, t);
+ }
+ return 1;
+ } else {
+ setnilV(L->top-2);
+ return 2;
+ }
+}
+
+LJLIB_CF(loadfile)
+{
+ GCstr *fname = lj_lib_optstr(L, 1);
+ GCstr *mode = lj_lib_optstr(L, 2);
+ int status;
+ lua_settop(L, 3); /* Ensure env arg exists. */
+ status = luaL_loadfilex(L, fname ? strdata(fname) : NULL,
+ mode ? strdata(mode) : NULL);
+ return load_aux(L, status, 3);
+}
+
+static const char *reader_func(lua_State *L, void *ud, size_t *size)
+{
+ UNUSED(ud);
+ luaL_checkstack(L, 2, "too many nested functions");
+ copyTV(L, L->top++, L->base);
+ lua_call(L, 0, 1); /* Call user-supplied function. */
+ L->top--;
+ if (tvisnil(L->top)) {
+ *size = 0;
+ return NULL;
+ } else if (tvisstr(L->top) || tvisnumber(L->top)) {
+ copyTV(L, L->base+4, L->top); /* Anchor string in reserved stack slot. */
+ return lua_tolstring(L, 5, size);
+ } else {
+ lj_err_caller(L, LJ_ERR_RDRSTR);
+ return NULL;
+ }
+}
+
+LJLIB_CF(load)
+{
+ GCstr *name = lj_lib_optstr(L, 2);
+ GCstr *mode = lj_lib_optstr(L, 3);
+ int status;
+ if (L->base < L->top && (tvisstr(L->base) || tvisnumber(L->base))) {
+ GCstr *s = lj_lib_checkstr(L, 1);
+ lua_settop(L, 4); /* Ensure env arg exists. */
+ status = luaL_loadbufferx(L, strdata(s), s->len, strdata(name ? name : s),
+ mode ? strdata(mode) : NULL);
+ } else {
+ lj_lib_checkfunc(L, 1);
+ lua_settop(L, 5); /* Reserve a slot for the string from the reader. */
+ status = lua_loadx(L, reader_func, NULL, name ? strdata(name) : "=(load)",
+ mode ? strdata(mode) : NULL);
+ }
+ return load_aux(L, status, 4);
+}
+
+LJLIB_CF(loadstring)
+{
+ return lj_cf_load(L);
+}
+
+LJLIB_CF(dofile)
+{
+ GCstr *fname = lj_lib_optstr(L, 1);
+ setnilV(L->top);
+ L->top = L->base+1;
+ if (luaL_loadfile(L, fname ? strdata(fname) : NULL) != 0)
+ lua_error(L);
+ lua_call(L, 0, LUA_MULTRET);
+ return (int)(L->top - L->base) - 1;
+}
+
+/* -- Base library: GC control -------------------------------------------- */
+
+LJLIB_CF(gcinfo)
+{
+ setintV(L->top++, (int32_t)(G(L)->gc.total >> 10));
+ return 1;
+}
+
+LJLIB_CF(collectgarbage)
+{
+ int opt = lj_lib_checkopt(L, 1, LUA_GCCOLLECT, /* ORDER LUA_GC* */
+ "\4stop\7restart\7collect\5count\1\377\4step\10setpause\12setstepmul");
+ int32_t data = lj_lib_optint(L, 2, 0);
+ if (opt == LUA_GCCOUNT) {
+ setnumV(L->top, (lua_Number)G(L)->gc.total/1024.0);
+ } else {
+ int res = lua_gc(L, opt, data);
+ if (opt == LUA_GCSTEP)
+ setboolV(L->top, res);
+ else
+ setintV(L->top, res);
+ }
+ L->top++;
+ return 1;
+}
+
+/* -- Base library: miscellaneous functions ------------------------------- */
+
+LJLIB_PUSH(top-2) /* Upvalue holds weak table. */
+LJLIB_CF(newproxy)
+{
+ lua_settop(L, 1);
+ lua_newuserdata(L, 0);
+ if (lua_toboolean(L, 1) == 0) { /* newproxy(): without metatable. */
+ return 1;
+ } else if (lua_isboolean(L, 1)) { /* newproxy(true): with metatable. */
+ lua_newtable(L);
+ lua_pushvalue(L, -1);
+ lua_pushboolean(L, 1);
+ lua_rawset(L, lua_upvalueindex(1)); /* Remember mt in weak table. */
+ } else { /* newproxy(proxy): inherit metatable. */
+ int validproxy = 0;
+ if (lua_getmetatable(L, 1)) {
+ lua_rawget(L, lua_upvalueindex(1));
+ validproxy = lua_toboolean(L, -1);
+ lua_pop(L, 1);
+ }
+ if (!validproxy)
+ lj_err_arg(L, 1, LJ_ERR_NOPROXY);
+ lua_getmetatable(L, 1);
+ }
+ lua_setmetatable(L, 2);
+ return 1;
+}
+
+LJLIB_PUSH("tostring")
+LJLIB_CF(print)
+{
+ ptrdiff_t i, nargs = L->top - L->base;
+ cTValue *tv = lj_tab_getstr(tabref(L->env), strV(lj_lib_upvalue(L, 1)));
+ int shortcut;
+ if (tv && !tvisnil(tv)) {
+ copyTV(L, L->top++, tv);
+ } else {
+ setstrV(L, L->top++, strV(lj_lib_upvalue(L, 1)));
+ lua_gettable(L, LUA_GLOBALSINDEX);
+ tv = L->top-1;
+ }
+ shortcut = (tvisfunc(tv) && funcV(tv)->c.ffid == FF_tostring);
+ for (i = 0; i < nargs; i++) {
+ cTValue *o = &L->base[i];
+ char buf[STRFMT_MAXBUF_NUM];
+ const char *str;
+ size_t size;
+ MSize len;
+ if (shortcut && (str = lj_strfmt_wstrnum(buf, o, &len)) != NULL) {
+ size = len;
+ } else {
+ copyTV(L, L->top+1, o);
+ copyTV(L, L->top, L->top-1);
+ L->top += 2;
+ lua_call(L, 1, 1);
+ str = lua_tolstring(L, -1, &size);
+ if (!str)
+ lj_err_caller(L, LJ_ERR_PRTOSTR);
+ L->top--;
+ }
+ if (i)
+ putchar('\t');
+ fwrite(str, 1, size, stdout);
+ }
+ putchar('\n');
+ return 0;
+}
+
+LJLIB_PUSH(top-3)
+LJLIB_SET(_VERSION)
+
+#include "lj_libdef.h"
+
+/* -- Coroutine library --------------------------------------------------- */
+
+#define LJLIB_MODULE_coroutine
+
+LJLIB_CF(coroutine_status)
+{
+ const char *s;
+ lua_State *co;
+ if (!(L->top > L->base && tvisthread(L->base)))
+ lj_err_arg(L, 1, LJ_ERR_NOCORO);
+ co = threadV(L->base);
+ if (co == L) s = "running";
+ else if (co->status == LUA_YIELD) s = "suspended";
+ else if (co->status != 0) s = "dead";
+ else if (co->base > tvref(co->stack)+1+LJ_FR2) s = "normal";
+ else if (co->top == co->base) s = "dead";
+ else s = "suspended";
+ lua_pushstring(L, s);
+ return 1;
+}
+
+LJLIB_CF(coroutine_running)
+{
+#if LJ_52
+ int ismain = lua_pushthread(L);
+ setboolV(L->top++, ismain);
+ return 2;
+#else
+ if (lua_pushthread(L))
+ setnilV(L->top++);
+ return 1;
+#endif
+}
+
+LJLIB_CF(coroutine_create)
+{
+ lua_State *L1;
+ if (!(L->base < L->top && tvisfunc(L->base)))
+ lj_err_argt(L, 1, LUA_TFUNCTION);
+ L1 = lua_newthread(L);
+ setfuncV(L, L1->top++, funcV(L->base));
+ return 1;
+}
+
+LJLIB_ASM(coroutine_yield)
+{
+ lj_err_caller(L, LJ_ERR_CYIELD);
+ return FFH_UNREACHABLE;
+}
+
+static int ffh_resume(lua_State *L, lua_State *co, int wrap)
+{
+ if (co->cframe != NULL || co->status > LUA_YIELD ||
+ (co->status == 0 && co->top == co->base)) {
+ ErrMsg em = co->cframe ? LJ_ERR_CORUN : LJ_ERR_CODEAD;
+ if (wrap) lj_err_caller(L, em);
+ setboolV(L->base-1-LJ_FR2, 0);
+ setstrV(L, L->base-LJ_FR2, lj_err_str(L, em));
+ return FFH_RES(2);
+ }
+ lj_state_growstack(co, (MSize)(L->top - L->base));
+ return FFH_RETRY;
+}
+
+LJLIB_ASM(coroutine_resume)
+{
+ if (!(L->top > L->base && tvisthread(L->base)))
+ lj_err_arg(L, 1, LJ_ERR_NOCORO);
+ return ffh_resume(L, threadV(L->base), 0);
+}
+
+LJLIB_NOREG LJLIB_ASM(coroutine_wrap_aux)
+{
+ return ffh_resume(L, threadV(lj_lib_upvalue(L, 1)), 1);
+}
+
+/* Inline declarations. */
+LJ_ASMF void lj_ff_coroutine_wrap_aux(void);
+#if !(LJ_TARGET_MIPS && defined(ljamalg_c))
+LJ_FUNCA_NORET void LJ_FASTCALL lj_ffh_coroutine_wrap_err(lua_State *L,
+ lua_State *co);
+#endif
+
+/* Error handler, called from assembler VM. */
+void LJ_FASTCALL lj_ffh_coroutine_wrap_err(lua_State *L, lua_State *co)
+{
+ co->top--; copyTV(L, L->top, co->top); L->top++;
+ if (tvisstr(L->top-1))
+ lj_err_callermsg(L, strVdata(L->top-1));
+ else
+ lj_err_run(L);
+}
+
+/* Forward declaration. */
+static void setpc_wrap_aux(lua_State *L, GCfunc *fn);
+
+LJLIB_CF(coroutine_wrap)
+{
+ GCfunc *fn;
+ lj_cf_coroutine_create(L);
+ fn = lj_lib_pushcc(L, lj_ffh_coroutine_wrap_aux, FF_coroutine_wrap_aux, 1);
+ setpc_wrap_aux(L, fn);
+ return 1;
+}
+
+#include "lj_libdef.h"
+
+/* Fix the PC of wrap_aux. Really ugly workaround. */
+static void setpc_wrap_aux(lua_State *L, GCfunc *fn)
+{
+ setmref(fn->c.pc, &L2GG(L)->bcff[lj_lib_init_coroutine[1]+2]);
+}
+
+/* ------------------------------------------------------------------------ */
+
+static void newproxy_weaktable(lua_State *L)
+{
+ /* NOBARRIER: The table is new (marked white). */
+ GCtab *t = lj_tab_new(L, 0, 1);
+ settabV(L, L->top++, t);
+ setgcref(t->metatable, obj2gco(t));
+ setstrV(L, lj_tab_setstr(L, t, lj_str_newlit(L, "__mode")),
+ lj_str_newlit(L, "kv"));
+ t->nomm = (uint8_t)(~(1u<<MM_mode));
+}
+
+LUALIB_API int luaopen_base(lua_State *L)
+{
+ /* NOBARRIER: Table and value are the same. */
+ GCtab *env = tabref(L->env);
+ settabV(L, lj_tab_setstr(L, env, lj_str_newlit(L, "_G")), env);
+ lua_pushliteral(L, LUA_VERSION); /* top-3. */
+ newproxy_weaktable(L); /* top-2. */
+ LJ_LIB_REG(L, "_G", base);
+ LJ_LIB_REG(L, LUA_COLIBNAME, coroutine);
+ return 2;
+}
+