* MIT License
*
* Copyright (c) 2019 Xu Liangzhan
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
import hasOwn from './hasOwnProp'
import staticHGKeyRE from '../static/staticHGKeyRE'
import helperGetHGSKeys from './helperGetHGSKeys'
const formatterArgs = (matchs, rest, isHas) => {
let arrIndex = matchs[1]
let objProp = matchs[2]
if (arrIndex) {
if (rest[arrIndex]) {
if (hasOwn(rest[arrIndex], objProp)) {
isHas = true
rest = rest[arrIndex][objProp]
}
}
} else {
if (hasOwn(rest, objProp)) {
isHas = true
rest = rest[objProp]
}
}
return { isHas, rest }
}
const has = (obj, property) => {
if (!obj) {
return
}
const compare = (property) => {
let prop, matchs, rest, isHas
let props = helperGetHGSKeys(property)
let index = 0
let len = props.length
let flag = false
for (rest = obj; index < len; index++) {
isHas = false
prop = props[index]
matchs = prop ? prop.match(staticHGKeyRE) : ''
if (matchs) {
const args = formatterArgs(matchs, rest, isHas)
isHas = args.isHas
rest = args.rest
} else {
hasOwn(rest, prop) && ((isHas = true), (rest = rest[prop]))
}
if (isHas) {
index === len - 1 && (flag = true)
} else {
break
}
}
return flag
}
if (hasOwn(obj, property)) {
return true
} else {
return compare(property)
}
}
export default has