| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 | 'use strict';const Hoek = require('@hapi/hoek');const internals = {};exports.create = function (key, options) {    Hoek.assert(typeof key === 'string', 'Invalid reference key:', key);    const settings = Hoek.clone(options);         // options can be reused and modified    const ref = function (value, validationOptions) {        return Hoek.reach(ref.isContext ? validationOptions.context : value, ref.key, settings);    };    ref.isContext = (key[0] === ((settings && settings.contextPrefix) || '$'));    ref.key = (ref.isContext ? key.slice(1) : key);    ref.path = ref.key.split((settings && settings.separator) || '.');    ref.depth = ref.path.length;    ref.root = ref.path[0];    ref.isJoi = true;    ref.toString = function () {        return (ref.isContext ? 'context:' : 'ref:') + ref.key;    };    return ref;};exports.isRef = function (ref) {    return typeof ref === 'function' && ref.isJoi;};exports.push = function (array, ref) {    if (exports.isRef(ref) &&        !ref.isContext) {        array.push(ref.root);    }};
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