@feugene/mu
Version:
Helpful TS utilities without dependencies
46 lines • 1.52 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = getRawTag;
const root_1 = __importDefault(require("./root"));
/** Built-in value references. */
const symToStringTag = root_1.default.Symbol ? root_1.default.Symbol.toStringTag : undefined;
/** Used for built-in method references. */
const objectProto = Object.prototype;
/** Used to check objects for own properties. */
const hasOwnProperty = objectProto.hasOwnProperty;
/**
* Used to resolve the
* [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
* of values.
*/
const nativeObjectToString = objectProto.toString;
/**
* A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
*
* @private
* @param {*} value The value to query.
* @returns {string} Returns the raw `toStringTag`.
*/
function getRawTag(value) {
const isOwn = hasOwnProperty.call(value, symToStringTag), tag = value[symToStringTag];
let unmasked = false;
try {
value[symToStringTag] = undefined;
unmasked = true;
}
catch (error) { }
const result = nativeObjectToString.call(value);
if (unmasked) {
if (isOwn) {
value[symToStringTag] = tag;
}
else {
delete value[symToStringTag];
}
}
return result;
}
//# sourceMappingURL=getRawTag.js.map