@dnb/eufemia
Version:
DNB Eufemia Design System UI Library
148 lines (147 loc) • 4.05 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.compile = compile;
exports.dict = dict;
exports.escape = escape;
exports.get = get;
exports.has = has;
exports.parse = parse;
exports.remove = remove;
exports.set = set;
exports.unescape = unescape;
exports.walk = walk;
var _push = _interopRequireDefault(require("core-js-pure/stable/instance/push.js"));
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function get(obj, pointer) {
const refTokens = Array.isArray(pointer) ? pointer : parse(pointer);
for (let i = 0; i < refTokens.length; ++i) {
const tok = refTokens[i];
if (!(typeof obj === 'object' && tok in obj)) {
throw new Error('Invalid reference token: ' + tok);
}
obj = obj[tok];
}
return obj;
}
function set(obj, pointer, value) {
const refTokens = Array.isArray(pointer) ? pointer : parse(pointer);
let nextTok = refTokens[0];
if (refTokens.length === 0) {
throw Error('Cannot set the root object');
}
for (let i = 0; i < refTokens.length - 1; ++i) {
let tok = refTokens[i];
if (typeof tok !== 'string' && typeof tok !== 'number') {
tok = String(tok);
}
if (tok === '__proto__' || tok === 'constructor' || tok === 'prototype') {
continue;
}
if (tok === '-' && Array.isArray(obj)) {
tok = obj.length;
}
nextTok = refTokens[i + 1];
if (!(tok in obj)) {
if (nextTok.match(/^(\d+|-)$/)) {
obj[tok] = [];
} else {
obj[tok] = {};
}
}
if (Object.isFrozen(obj[tok])) {
obj[tok] = {
...obj[tok]
};
}
obj = obj[tok];
}
if (nextTok === '-' && Array.isArray(obj)) {
nextTok = obj.length;
}
obj[nextTok] = value;
}
function remove(obj, pointer) {
const refTokens = Array.isArray(pointer) ? pointer : parse(pointer);
const finalToken = refTokens[refTokens.length - 1];
if (finalToken === undefined) {
throw new Error('Invalid JSON pointer for remove: "' + pointer + '"');
}
const parent = get(obj, refTokens.slice(0, -1));
if (Array.isArray(parent)) {
const index = +finalToken;
if (finalToken === '' && isNaN(index)) {
throw new Error('Invalid array index: "' + finalToken + '"');
}
Array.prototype.splice.call(parent, index, 1);
} else {
delete parent[finalToken];
}
}
function dict(obj, descend = null) {
const results = {};
walk(obj, (value, pointer) => {
results[pointer] = value;
}, descend);
return results;
}
function walk(obj, iterator, descend = null) {
const refTokens = [];
descend = descend || (value => {
const type = Object.prototype.toString.call(value);
return type === '[object Object]' || type === '[object Array]';
});
next(obj, refTokens, iterator, descend);
}
function next(cur, refTokens, iterator, descend) {
if (Array.isArray(cur)) {
cur = cur.reduce((acc, cur, i) => {
acc[i] = cur;
return acc;
}, {});
}
let res;
for (const key in cur) {
(0, _push.default)(refTokens).call(refTokens, String(key));
if (descend(cur[key])) {
res = next(cur[key], refTokens, iterator, descend);
} else {
res = iterator(cur[key], compile(refTokens));
}
if (res === false) {
return false;
}
refTokens.pop();
}
}
function has(obj, pointer) {
try {
get(obj, pointer);
} catch (e) {
return false;
}
return true;
}
function escape(str) {
return str.toString().replace(/~/g, '~0').replace(/\//g, '~1');
}
function unescape(str) {
return str.replace(/~1/g, '/').replace(/~0/g, '~');
}
function parse(pointer) {
if (pointer === '') {
return [];
}
if ((pointer === null || pointer === void 0 ? void 0 : pointer.charAt(0)) !== '/') {
throw new Error('Invalid JSON pointer: ' + pointer);
}
return pointer.substring(1).split(/\//).map(unescape);
}
function compile(refTokens) {
if (refTokens.length === 0) {
return '';
}
return '/' + refTokens.map(escape).join('/');
}
//# sourceMappingURL=json-pointer.js.map