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- var hasMap = typeof Map === 'function' && Map.prototype;
- var mapSizeDescriptor = Object.getOwnPropertyDescriptor && hasMap ? Object.getOwnPropertyDescriptor(Map.prototype, 'size') : null;
- var mapSize = hasMap && mapSizeDescriptor && typeof mapSizeDescriptor.get === 'function' ? mapSizeDescriptor.get : null;
- var mapForEach = hasMap && Map.prototype.forEach;
- var hasSet = typeof Set === 'function' && Set.prototype;
- var setSizeDescriptor = Object.getOwnPropertyDescriptor && hasSet ? Object.getOwnPropertyDescriptor(Set.prototype, 'size') : null;
- var setSize = hasSet && setSizeDescriptor && typeof setSizeDescriptor.get === 'function' ? setSizeDescriptor.get : null;
- var setForEach = hasSet && Set.prototype.forEach;
- var booleanValueOf = Boolean.prototype.valueOf;
- var objectToString = Object.prototype.toString;
- var bigIntValueOf = typeof BigInt === 'function' ? BigInt.prototype.valueOf : null;
-
- var inspectCustom = require('./util.inspect').custom;
- var inspectSymbol = (inspectCustom && isSymbol(inspectCustom)) ? inspectCustom : null;
-
- module.exports = function inspect_ (obj, opts, depth, seen) {
- if (!opts) opts = {};
-
- if (has(opts, 'quoteStyle') && (opts.quoteStyle !== 'single' && opts.quoteStyle !== 'double')) {
- throw new TypeError('option "quoteStyle" must be "single" or "double"');
- }
-
- if (typeof obj === 'undefined') {
- return 'undefined';
- }
- if (obj === null) {
- return 'null';
- }
- if (typeof obj === 'boolean') {
- return obj ? 'true' : 'false';
- }
-
- if (typeof obj === 'string') {
- return inspectString(obj, opts);
- }
- if (typeof obj === 'number') {
- if (obj === 0) {
- return Infinity / obj > 0 ? '0' : '-0';
- }
- return String(obj);
- }
- if (typeof obj === 'bigint') {
- return String(obj) + 'n';
- }
-
- var maxDepth = typeof opts.depth === 'undefined' ? 5 : opts.depth;
- if (typeof depth === 'undefined') depth = 0;
- if (depth >= maxDepth && maxDepth > 0 && typeof obj === 'object') {
- return '[Object]';
- }
-
- if (typeof seen === 'undefined') seen = [];
- else if (indexOf(seen, obj) >= 0) {
- return '[Circular]';
- }
-
- function inspect (value, from) {
- if (from) {
- seen = seen.slice();
- seen.push(from);
- }
- return inspect_(value, opts, depth + 1, seen);
- }
-
- if (typeof obj === 'function') {
- var name = nameOf(obj);
- return '[Function' + (name ? ': ' + name : '') + ']';
- }
- if (isSymbol(obj)) {
- var symString = Symbol.prototype.toString.call(obj);
- return typeof obj === 'object' ? markBoxed(symString) : symString;
- }
- if (isElement(obj)) {
- var s = '<' + String(obj.nodeName).toLowerCase();
- var attrs = obj.attributes || [];
- for (var i = 0; i < attrs.length; i++) {
- s += ' ' + attrs[i].name + '=' + wrapQuotes(quote(attrs[i].value), 'double', opts);
- }
- s += '>';
- if (obj.childNodes && obj.childNodes.length) s += '...';
- s += '</' + String(obj.nodeName).toLowerCase() + '>';
- return s;
- }
- if (isArray(obj)) {
- if (obj.length === 0) return '[]';
- return '[ ' + arrObjKeys(obj, inspect).join(', ') + ' ]';
- }
- if (isError(obj)) {
- var parts = arrObjKeys(obj, inspect);
- if (parts.length === 0) return '[' + String(obj) + ']';
- return '{ [' + String(obj) + '] ' + parts.join(', ') + ' }';
- }
- if (typeof obj === 'object') {
- if (inspectSymbol && typeof obj[inspectSymbol] === 'function') {
- return obj[inspectSymbol]();
- } else if (typeof obj.inspect === 'function') {
- return obj.inspect();
- }
- }
- if (isMap(obj)) {
- var parts = [];
- mapForEach.call(obj, function (value, key) {
- parts.push(inspect(key, obj) + ' => ' + inspect(value, obj));
- });
- return collectionOf('Map', mapSize.call(obj), parts);
- }
- if (isSet(obj)) {
- var parts = [];
- setForEach.call(obj, function (value ) {
- parts.push(inspect(value, obj));
- });
- return collectionOf('Set', setSize.call(obj), parts);
- }
- if (isNumber(obj)) {
- return markBoxed(inspect(Number(obj)));
- }
- if (isBigInt(obj)) {
- return markBoxed(inspect(bigIntValueOf.call(obj)));
- }
- if (isBoolean(obj)) {
- return markBoxed(booleanValueOf.call(obj));
- }
- if (isString(obj)) {
- return markBoxed(inspect(String(obj)));
- }
- if (!isDate(obj) && !isRegExp(obj)) {
- var xs = arrObjKeys(obj, inspect);
- if (xs.length === 0) return '{}';
- return '{ ' + xs.join(', ') + ' }';
- }
- return String(obj);
- };
-
- function wrapQuotes (s, defaultStyle, opts) {
- var quoteChar = (opts.quoteStyle || defaultStyle) === 'double' ? '"' : "'";
- return quoteChar + s + quoteChar;
- }
-
- function quote (s) {
- return String(s).replace(/"/g, '"');
- }
-
- function isArray (obj) { return toStr(obj) === '[object Array]'; }
- function isDate (obj) { return toStr(obj) === '[object Date]'; }
- function isRegExp (obj) { return toStr(obj) === '[object RegExp]'; }
- function isError (obj) { return toStr(obj) === '[object Error]'; }
- function isSymbol (obj) { return toStr(obj) === '[object Symbol]'; }
- function isString (obj) { return toStr(obj) === '[object String]'; }
- function isNumber (obj) { return toStr(obj) === '[object Number]'; }
- function isBigInt (obj) { return toStr(obj) === '[object BigInt]'; }
- function isBoolean (obj) { return toStr(obj) === '[object Boolean]'; }
-
- var hasOwn = Object.prototype.hasOwnProperty || function (key) { return key in this; };
- function has (obj, key) {
- return hasOwn.call(obj, key);
- }
-
- function toStr (obj) {
- return objectToString.call(obj);
- }
-
- function nameOf (f) {
- if (f.name) return f.name;
- var m = String(f).match(/^function\s*([\w$]+)/);
- if (m) return m[1];
- }
-
- function indexOf (xs, x) {
- if (xs.indexOf) return xs.indexOf(x);
- for (var i = 0, l = xs.length; i < l; i++) {
- if (xs[i] === x) return i;
- }
- return -1;
- }
-
- function isMap (x) {
- if (!mapSize) {
- return false;
- }
- try {
- mapSize.call(x);
- try {
- setSize.call(x);
- } catch (s) {
- return true;
- }
- return x instanceof Map; // core-js workaround, pre-v2.5.0
- } catch (e) {}
- return false;
- }
-
- function isSet (x) {
- if (!setSize) {
- return false;
- }
- try {
- setSize.call(x);
- try {
- mapSize.call(x);
- } catch (m) {
- return true;
- }
- return x instanceof Set; // core-js workaround, pre-v2.5.0
- } catch (e) {}
- return false;
- }
-
- function isElement (x) {
- if (!x || typeof x !== 'object') return false;
- if (typeof HTMLElement !== 'undefined' && x instanceof HTMLElement) {
- return true;
- }
- return typeof x.nodeName === 'string'
- && typeof x.getAttribute === 'function'
- ;
- }
-
- function inspectString (str, opts) {
- var s = str.replace(/(['\\])/g, '\\$1').replace(/[\x00-\x1f]/g, lowbyte);
- return wrapQuotes(s, 'single', opts);
- }
-
- function lowbyte (c) {
- var n = c.charCodeAt(0);
- var x = { 8: 'b', 9: 't', 10: 'n', 12: 'f', 13: 'r' }[n];
- if (x) return '\\' + x;
- return '\\x' + (n < 0x10 ? '0' : '') + n.toString(16);
- }
-
- function markBoxed (str) {
- return 'Object(' + str + ')';
- }
-
- function collectionOf (type, size, entries) {
- return type + ' (' + size + ') {' + entries.join(', ') + '}';
- }
-
- function arrObjKeys (obj, inspect) {
- var isArr = isArray(obj);
- var xs = [];
- if (isArr) {
- xs.length = obj.length;
- for (var i = 0; i < obj.length; i++) {
- xs[i] = has(obj, i) ? inspect(obj[i], obj) : '';
- }
- }
- for (var key in obj) {
- if (!has(obj, key)) continue;
- if (isArr && String(Number(key)) === key && key < obj.length) continue;
- if (/[^\w$]/.test(key)) {
- xs.push(inspect(key, obj) + ': ' + inspect(obj[key], obj));
- } else {
- xs.push(key + ': ' + inspect(obj[key], obj));
- }
- }
- return xs;
- }
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