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 += ''; 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; }