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- 'use strict';
- const mapObj = require('map-obj');
- const camelCase = require('camelcase');
- const QuickLru = require('quick-lru');
- const has = (array, key) => array.some(x => {
- if (typeof x === 'string') {
- return x === key;
- }
- x.lastIndex = 0;
- return x.test(key);
- });
- const cache = new QuickLru({maxSize: 100000});
- const isObject = value =>
- typeof value === 'object' &&
- value !== null &&
- !(value instanceof RegExp) &&
- !(value instanceof Error) &&
- !(value instanceof Date);
- const camelCaseConvert = (input, options) => {
- if (!isObject(input)) {
- return input;
- }
- options = {
- deep: false,
- pascalCase: false,
- ...options
- };
- const {exclude, pascalCase, stopPaths, deep} = options;
- const stopPathsSet = new Set(stopPaths);
- const makeMapper = parentPath => (key, value) => {
- if (deep && isObject(value)) {
- const path = parentPath === undefined ? key : `${parentPath}.${key}`;
- if (!stopPathsSet.has(path)) {
- value = mapObj(value, makeMapper(path));
- }
- }
- if (!(exclude && has(exclude, key))) {
- const cacheKey = pascalCase ? `${key}_` : key;
- if (cache.has(cacheKey)) {
- key = cache.get(cacheKey);
- } else {
- const ret = camelCase(key, {pascalCase});
- if (key.length < 100) {
- cache.set(cacheKey, ret);
- }
- key = ret;
- }
- }
- return [key, value];
- };
- return mapObj(input, makeMapper(undefined));
- };
- module.exports = (input, options) => {
- if (Array.isArray(input)) {
- return Object.keys(input).map(key => camelCaseConvert(input[key], options));
- }
- return camelCaseConvert(input, options);
- };
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