The provided code appears to define utility functions and data...

August 9, 2025 at 10:01 AM

var ys = Object.create;
var qe = Object.defineProperty;
var bs = Object.getOwnPropertyDescriptor;
var xs = Object.getOwnPropertyNames;
var qs = Object.getPrototypeOf,
    ws = Object.prototype.hasOwnProperty;
var t = (e, r) => qe(e, "name", {
    value: r,
    configurable: !0
});
var i = (e, r) => () => (r || e((r = {
    exports: {}
}).exports, r), r.exports);
var Ps = (e, r, n, a) => {
    if (r && typeof r == "object" || typeof r == "function")
        for (let s of xs(r)) !ws.call(e, s) && s !== n && qe(e, s, {
            get: () => r[s],
            enumerable: !(a = bs(r, s)) || a.enumerable
        });
    return e
};
var g = (e, r, n) => (n = e != null ? ys(qs(e)) : {}, Ps(r || !e || !e.__esModule ? qe(n, "default", {
    value: e,
    enumerable: !0
}) : n, e));
var fr = i((Dh, cr) => {
    function _s() {
        this.__data__ = [], this.size = 0
    }
    t(_s, "listCacheClear");
    cr.exports = _s
});
var ue = i((Nh, dr) => {
    function Ts(e, r) {
        return e === r || e !== e && r !== r
    }
    t(Ts, "eq");
    dr.exports = Ts
});
var k = i((jh, hr) => {
    var As = ue();

    function Ss(e, r) {
        for (var n = e.length; n--;)
            if (As(e[n][0], r)) return n;
        return -1
    }
    t(Ss, "assocIndexOf");
    hr.exports = Ss
});
var mr = i((Bh, gr) => {
    var Os = k(),
        Es = Array.prototype,
        Is = Es.splice;

    function Ms(e) {
        var r = this.__data__,
            n = Os(r, e);
        if (n < 0) return !1;
        var a = r.length - 1;
        return n == a ? r.pop() : Is.call(r, n, 1), --this.size, !0
    }
    t(Ms, "listCacheDelete");
    gr.exports = Ms
});
var yr = i((Hh, vr) => {
    var Cs = k();

    function Rs(e) {
        var r = this.__data__,
            n = Cs(r, e);
        return n < 0 ? void 0 : r[n][1]
    }
    t(Rs, "listCacheGet");
    vr.exports = Rs
});
var xr = i((Kh, br) => {
    var Ds = k();

    function Ls(e) {
        return Ds(this.__data__, e) > -1
    }
    t(Ls, "listCacheHas");
    br.exports = Ls
});
var wr = i((Jh, qr) => {
    var Ns = k();

    function Us(e, r) {
        var n = this.__data__,
            a = Ns(n, e);
        return a < 0 ? (++this.size, n.push([e, r])) : n[a][1] = r, this
    }
    t(Us, "listCacheSet");
    qr.exports = Us
});
var W = i((Wh, Pr) => {
    var js = fr(),
        Gs = mr(),
        Bs = yr(),
        Fs = xr(),
        Hs = wr();

    function L(e) {
        var r = -1,
            n = e == null ? 0 : e.length;
        for (this.clear(); ++r < n;) {
            var a = e[r];
            this.set(a[0], a[1])
        }
    }
    t(L, "ListCache");
    L.prototype.clear = js;
    L.prototype.delete = Gs;
    L.prototype.get = Bs;
    L.prototype.has = Fs;
    L.prototype.set = Hs;
    Pr.exports = L
});
var Tr = i((Xh, _r) => {
    var $s = W();

    function Ks() {
        this.__data__ = new $s, this.size = 0
    }
    t(Ks, "stackClear");
    _r.exports = Ks
});
var Sr = i((Qh, Ar) => {
    function zs(e) {
        var r = this.__data__,
            n = r.delete(e);
        return this.size = r.size, n
    }
    t(zs, "stackDelete");
    Ar.exports = zs
});
var Er = i((eg, Or) => {
    function Js(e) {
        return this.__data__.get(e)
    }
    t(Js, "stackGet");
    Or.exports = Js
});
var Mr = i((tg, Ir) => {
    function ks(e) {
        return this.__data__.has(e)
    }
    t(ks, "stackHas");
    Ir.exports = ks
});
var we = i((ag, Cr) => {
    var Ws = typeof global == "object" && global && global.Object === Object && global;
    Cr.exports = Ws
});
var w = i((ig, Rr) => {
    var Vs = we(),
        Xs = typeof self == "object" && self && self.Object === Object && self,
        Zs = Vs || Xs || Function("return this")();
    Rr.exports = Zs
});
var V = i((sg, Dr) => {
    var Qs = w(),
        Ys = Qs.Symbol;
    Dr.exports = Ys
});
var jr = i((og, Ur) => {
    var Lr = V(),
        Nr = Object.prototype,
        eo = Nr.hasOwnProperty,
        ro = Nr.toString,
        X = Lr ? Lr.toStringTag : void 0;

    function to(e) {
        var r = eo.call(e, X),
            n = e[X];
        try {
            e[X] = void 0;
            var a = !0
        } catch {}
        var s = ro.call(e);
        return a && (r ? e[X] = n : delete e[X]), s
    }
    t(to, "getRawTag");
    Ur.exports = to
});
var Br = i((lg, Gr) => {
    var no = Object.prototype,
        ao = no.toString;

    function io(e) {
        return ao.call(e)
    }
    t(io, "objectToString");
    Gr.exports = io
});
var N = i((cg, $r) => {
    var Fr = V(),
        so = jr(),
        oo = Br(),
        uo = "[object Null]",
        lo = "[object Undefined]",
        Hr = Fr ? Fr.toStringTag : void 0;

    function po(e) {
        return e == null ? e === void 0 ? lo : uo : Hr && Hr in Object(e) ? so(e) : oo(e)
    }
    t(po, "baseGetTag");
    $r.exports = po
});
var U = i((dg, Kr) => {
    function co(e) {
        var r = typeof e;
        return e != null && (r == "object" || r == "function")
    }
    t(co, "isObject");
    Kr.exports = co
});
var Pe = i((gg, zr) => {
    var fo = N(),
        ho = U(),
        go = "[object AsyncFunction]",
        mo = "[object Function]",
        vo = "[object GeneratorFunction]",
        yo = "[object Proxy]";

    function bo(e) {
        if (!ho(e)) return !1;
        var r = fo(e);
        return r == mo || r == vo || r == go || r == yo
    }
    t(bo, "isFunction");
    zr.exports = bo
});
var kr = i((vg, Jr) => {
    var xo = w(),
        qo = xo["__core-js_shared__"];
    Jr.exports = qo
});
var Xr = i((yg, Vr) => {
    var _e = kr(),
        Wr = function() {
            var e = /[^.]+$/.exec(_e && _e.keys && _e.keys.IE_PROTO || "");
            return e ? "Symbol(src)_1." + e : ""
        }();

    function wo(e) {
        return !!Wr && Wr in e
    }
    t(wo, "isMasked");
    Vr.exports = wo
});
var Te = i((xg, Zr) => {
    var Po = Function.prototype,
        _o = Po.toString;

    function To(e) {
        if (e != null) {
            try {
                return _o.call(e)
            } catch {}
            try {
                return e + ""
            } catch {}
        }
        return ""
    }
    t(To, "toSource");
    Zr.exports = To
});
var Yr = i((wg, Qr) => {
    var Ao = Pe(),
        So = Xr(),
        Oo = U(),
        Eo = Te(),
        Io = /[\\^$.*+?()[\]{}|]/g,
        Mo = /^\[object .+?Constructor\]$/,
        Co = Function.prototype,
        Ro = Object.prototype,
        Do = Co.toString,
        Lo = Ro.hasOwnProperty,
        No = RegExp("^" + Do.call(Lo).replace(Io, "\\$&").replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, "$1.*?") + "$");

    function Uo(e) {
        if (!Oo(e) || So(e)) return !1;
        var r = Ao(e) ? No : Mo;
        return r.test(Eo(e))
    }
    t(Uo, "baseIsNative");
    Qr.exports = Uo
});
var rt = i((_g, et) => {
    function jo(e, r) {
        return e?.[r]
    }
    t(jo, "getValue");
    et.exports = jo
});
var E = i((Ag, tt) => {
    var Go = Yr(),
        Bo = rt();

    function Fo(e, r) {
        var n = Bo(e, r);
        return Go(n) ? n : void 0
    }
    t(Fo, "getNative");
    tt.exports = Fo
});
var le = i((Og, nt) => {
    var Ho = E(),
        $o = w(),
        Ko = Ho($o, "Map");
    nt.exports = Ko
});
var Z = i((Eg, at) => {
    var zo = E(),
        Jo = zo(Object, "create");
    at.exports = Jo
});
var ot = i((Ig, st) => {
    var it = Z();

    function ko() {
        this.__data__ = it ? it(null) : {}, this.size = 0
    }
    t(ko, "hashClear");
    st.exports = ko
});
var lt = i((Cg, ut) => {
    function Wo(e) {
        var r = this.has(e) && delete this.__data__[e];
        return this.size -= r ? 1 : 0, r
    }
    t(Wo, "hashDelete");
    ut.exports = Wo
});
var ct = i((Dg, pt) => {
    var Vo = Z(),
        Xo = "__lodash_hash_undefined__",
        Zo = Object.prototype,
        Qo = Zo.hasOwnProperty;

    function Yo(e) {
        var r = this.__data__;
        if (Vo) {
            var n = r[e];
            return n === Xo ? void 0 : n
        }
        return Qo.call(r, e) ? r[e] : void 0
    }
    t(Yo, "hashGet");
    pt.exports = Yo
});
var dt = i((Ng, ft) => {
    var eu = Z(),
        ru = Object.prototype,
        tu = ru.hasOwnProperty;

    function nu(e) {
        var r = this.__data__;
        return eu ? r[e] !== void 0 : tu.call(r, e)
    }
    t(nu, "hashHas");
    ft.exports = nu
});
var gt = i((jg, ht) => {
    var au = Z(),
        iu = "__lodash_hash_undefined__";

    function su(e, r) {
        var n = this.__data__;
        return this.size += this.has(e) ? 0 : 1, n[e] = au && r === void 0 ? iu : r, this
    }
    t(su, "hashSet");
    ht.exports = su
});
var vt = i((Bg, mt) => {
    var ou = ot(),
        uu = lt(),
        lu = ct(),
        pu = dt(),
        cu = gt();

    function j(e) {
        var r = -1,
            n = e == null ? 0 : e.length;
        for (this.clear(); ++r < n;) {
            var a = e[r];
            this.set(a[0], a[1])
        }
    }
    t(j, "Hash");
    j.prototype.clear = ou;
    j.prototype.delete = uu;
    j.prototype.get = lu;
    j.prototype.has = pu;
    j.prototype.set = cu;
    mt.exports = j
});

The provided code appears to define utility functions and data structure implementations, commonly used in JavaScript, for maintaining lightweight and efficient data caches. Here's what this code does:

Utility Wrappers and Aliases:
- var ys = Object.create;, qe = Object.defineProperty;, etc.: Aliases for built-in Object methods for easier referencing.
- Functions such as t, i, Ps, and g are defined as utilities to handle object properties, exports, and inheritance.
ListCache Implementation:
- It starts with creating a ListCache data structure (L).
- The ListCache uses an array (this.__data__) to store key-value pairs and contains methods:
  - listCacheClear: Clears all items.
  - listCacheSet: Adds or updates an item.
  - listCacheGet: Retrieves a value based on a key.
  - listCacheHas: Checks for the existence of a key.
  - listCacheDelete: Removes a key-value pair by its key.
Stack Implementation:
- The Ks function initializes a stack using ListCache internally.
- It provides methods like stackClear, stackGet, stackHas, and stackDelete for managing stack data.
Hash Map Implementation (Hash):
- Implements a Hash data structure (in vt) that uses an object (__data__) to store key-value pairs.
- Methods include:
  - hashClear: Resets the hash.
  - hashSet: Sets or updates key-value pairs.
  - hashGet: Retrieves a value for a key.
  - hashHas: Checks if a key exists.
  - hashDelete: Removes a key-value pair.
Utility to Check Types and Values:
- Utility functions like po, co, bo, Uo, etc., are defined for checking types of objects or determining if functions and properties are native.
- Example: isObject (co) checks if a value is an object or function.
- baseGetTag (po) determines the type of a value using the toString method.
Native Function Checking:
- Functions verify whether a given function or property originates from native JavaScript or is user-defined.
Miscellaneous:
- Various list and mapping mechanisms (assocIndexOf, ListCache, Hash) are implemented for caching mechanisms.
- Utility functions like toSource convert functions to their source code for analysis.

Purpose:

The provided code has utility libraries for managing in-memory cache data structures, such as lists or hash maps. It is modular, ES5-compatible, and optimized for checking and manipulating object structures. It is typically found in frameworks or libraries like lodash for implementing memoization, cache mechanisms, or data validation.

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