354 lines
10 KiB
JavaScript
354 lines
10 KiB
JavaScript
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'use strict';
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// Load modules
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const Hoek = require('hoek');
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const Language = require('./language');
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// Declare internals
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const internals = {
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annotations: Symbol('joi-annotations')
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};
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internals.stringify = function (value, wrapArrays) {
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const type = typeof value;
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if (value === null) {
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return 'null';
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}
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if (type === 'string') {
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return value;
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}
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if (value instanceof exports.Err || type === 'function') {
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return value.toString();
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}
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if (type === 'object') {
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if (Array.isArray(value)) {
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let partial = '';
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for (let i = 0; i < value.length; ++i) {
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partial = partial + (partial.length ? ', ' : '') + internals.stringify(value[i], wrapArrays);
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}
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return wrapArrays ? '[' + partial + ']' : partial;
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}
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return value.toString();
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}
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return JSON.stringify(value);
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};
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exports.Err = class {
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constructor(type, context, state, options, flags, message, template) {
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this.isJoi = true;
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this.type = type;
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this.context = context || {};
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this.context.key = state.key;
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this.path = state.path;
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this.options = options;
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this.flags = flags;
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this.message = message;
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this.template = template;
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}
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toString() {
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if (this.message) {
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return this.message;
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}
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let format;
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if (this.template) {
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format = this.template;
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}
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const localized = this.options.language;
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if (this.flags.label) {
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this.context.key = this.flags.label;
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}
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else if (this.context.key === '' || this.context.key === null) {
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this.context.key = localized.root || Language.errors.root;
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}
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format = format || Hoek.reach(localized, this.type) || Hoek.reach(Language.errors, this.type);
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let wrapArrays = Hoek.reach(localized, 'messages.wrapArrays');
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if (typeof wrapArrays !== 'boolean') {
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wrapArrays = Language.errors.messages.wrapArrays;
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}
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if (format === null) {
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const childrenString = internals.stringify(this.context.reason, wrapArrays);
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if (wrapArrays) {
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return childrenString.slice(1, -1);
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}
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return childrenString;
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}
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const hasKey = /\{\{\!?key\}\}/.test(format);
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const skipKey = format.length > 2 && format[0] === '!' && format[1] === '!';
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if (skipKey) {
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format = format.slice(2);
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}
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if (!hasKey && !skipKey) {
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format = (Hoek.reach(localized, 'key') || Hoek.reach(Language.errors, 'key')) + format;
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}
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return format.replace(/\{\{(\!?)([^}]+)\}\}/g, ($0, isSecure, name) => {
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const value = Hoek.reach(this.context, name);
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const normalized = internals.stringify(value, wrapArrays);
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return (isSecure ? Hoek.escapeHtml(normalized) : normalized);
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});
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}
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};
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exports.create = function (type, context, state, options, flags, message, template) {
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return new exports.Err(type, context, state, options, flags, message, template);
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};
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exports.process = function (errors, object) {
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if (!errors || !errors.length) {
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return null;
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}
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// Construct error
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let message = '';
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const details = [];
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const processErrors = function (localErrors, parent) {
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for (let i = 0; i < localErrors.length; ++i) {
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const item = localErrors[i];
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if (item instanceof Error) {
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return item;
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}
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if (item.flags.error && typeof item.flags.error !== 'function') {
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return item.flags.error;
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}
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let itemMessage;
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if (parent === undefined) {
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itemMessage = item.toString();
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message = message + (message ? '. ' : '') + itemMessage;
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}
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// Do not push intermediate errors, we're only interested in leafs
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if (item.context.reason && item.context.reason.length) {
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const override = processErrors(item.context.reason, item.path);
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if (override) {
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return override;
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}
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}
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else {
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details.push({
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message: itemMessage || item.toString(),
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path: internals.getPath(item),
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type: item.type,
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context: item.context
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});
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}
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}
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};
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const override = processErrors(errors);
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if (override) {
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return override;
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}
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const error = new Error(message);
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error.isJoi = true;
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error.name = 'ValidationError';
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error.details = details;
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error._object = object;
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error.annotate = internals.annotate;
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return error;
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};
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internals.getPath = function (item) {
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return item.path || item.context.key;
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};
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// Inspired by json-stringify-safe
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internals.safeStringify = function (obj, spaces) {
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return JSON.stringify(obj, internals.serializer(), spaces);
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};
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internals.serializer = function () {
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const keys = [];
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const stack = [];
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const cycleReplacer = (key, value) => {
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if (stack[0] === value) {
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return '[Circular ~]';
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}
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return '[Circular ~.' + keys.slice(0, stack.indexOf(value)).join('.') + ']';
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};
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return function (key, value) {
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if (stack.length > 0) {
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const thisPos = stack.indexOf(this);
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if (~thisPos) {
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stack.length = thisPos + 1;
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keys.length = thisPos + 1;
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keys[thisPos] = key;
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}
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else {
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stack.push(this);
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keys.push(key);
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}
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if (~stack.indexOf(value)) {
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value = cycleReplacer.call(this, key, value);
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}
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}
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else {
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stack.push(value);
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}
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if (value) {
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const annotations = value[internals.annotations];
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if (annotations) {
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if (Array.isArray(value)) {
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const annotated = [];
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for (let i = 0; i < value.length; ++i) {
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if (annotations.errors[i]) {
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annotated.push(`_$idx$_${annotations.errors[i].sort().join(', ')}_$end$_`);
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}
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annotated.push(value[i]);
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}
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value = annotated;
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}
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else {
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const errorKeys = Object.keys(annotations.errors);
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for (let i = 0; i < errorKeys.length; ++i) {
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const errorKey = errorKeys[i];
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value[`${errorKey}_$key$_${annotations.errors[errorKey].sort().join(', ')}_$end$_`] = value[errorKey];
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value[errorKey] = undefined;
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}
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const missingKeys = Object.keys(annotations.missing);
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for (let i = 0; i < missingKeys.length; ++i) {
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const missingKey = missingKeys[i];
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value[`_$miss$_${missingKey}|${annotations.missing[missingKey]}_$end$_`] = '__missing__';
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}
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}
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return value;
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}
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}
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if (value === Infinity || value === -Infinity || Number.isNaN(value) ||
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typeof value === 'function' || typeof value === 'symbol') {
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return '[' + value.toString() + ']';
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}
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return value;
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};
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};
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internals.annotate = function (stripColorCodes) {
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const redFgEscape = stripColorCodes ? '' : '\u001b[31m';
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const redBgEscape = stripColorCodes ? '' : '\u001b[41m';
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const endColor = stripColorCodes ? '' : '\u001b[0m';
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if (typeof this._object !== 'object') {
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return this.details[0].message;
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}
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const obj = Hoek.clone(this._object || {});
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for (let i = this.details.length - 1; i >= 0; --i) { // Reverse order to process deepest child first
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const pos = i + 1;
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const error = this.details[i];
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const path = error.path.split('.');
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let ref = obj;
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for (let j = 0; ; ++j) {
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const seg = path[j];
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if (ref.isImmutable) {
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ref = ref.clone(); // joi schemas are not cloned by hoek, we have to take this extra step
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}
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if (j + 1 < path.length &&
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ref[seg] &&
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typeof ref[seg] !== 'string') {
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ref = ref[seg];
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}
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else {
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const refAnnotations = ref[internals.annotations] = ref[internals.annotations] || { errors: {}, missing: {} };
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const value = ref[seg];
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if (value !== undefined) {
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refAnnotations.errors[seg] = refAnnotations.errors[seg] || [];
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refAnnotations.errors[seg].push(pos);
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}
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else {
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refAnnotations.missing[seg] = pos;
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}
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break;
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}
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}
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}
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const replacers = {
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key: /_\$key\$_([, \d]+)_\$end\$_\"/g,
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missing: /\"_\$miss\$_([^\|]+)\|(\d+)_\$end\$_\"\: \"__missing__\"/g,
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arrayIndex: /\s*\"_\$idx\$_([, \d]+)_\$end\$_\",?\n(.*)/g,
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specials: /"\[(NaN|Symbol.*|-?Infinity|function.*|\(.*)\]"/g
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};
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let message = internals.safeStringify(obj, 2)
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.replace(replacers.key, ($0, $1) => `" ${redFgEscape}[${$1}]${endColor}`)
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.replace(replacers.missing, ($0, $1, $2) => `${redBgEscape}"${$1}"${endColor}${redFgEscape} [${$2}]: -- missing --${endColor}`)
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.replace(replacers.arrayIndex, ($0, $1, $2) => `\n${$2} ${redFgEscape}[${$1}]${endColor}`)
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.replace(replacers.specials, ($0, $1) => $1);
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message = `${message}\n${redFgEscape}`;
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for (let i = 0; i < this.details.length; ++i) {
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const pos = i + 1;
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message = `${message}\n[${pos}] ${this.details[i].message}`;
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}
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message = message + endColor;
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return message;
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};
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