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 hasWeakMap = typeof WeakMap === 'function' && WeakMap.prototype; var weakMapHas = hasWeakMap ? WeakMap.prototype.has : null; var hasWeakSet = typeof WeakSet === 'function' && WeakSet.prototype; var weakSetHas = hasWeakSet ? WeakSet.prototype.has : null; var hasWeakRef = typeof WeakRef === 'function' && WeakRef.prototype; var weakRefDeref = hasWeakRef ? WeakRef.prototype.deref : null; var booleanValueOf = Boolean.prototype.valueOf; var objectToString = Object.prototype.toString; var functionToString = Function.prototype.toString; var $match = String.prototype.match; var $slice = String.prototype.slice; var $replace = String.prototype.replace; var $toUpperCase = String.prototype.toUpperCase; var $toLowerCase = String.prototype.toLowerCase; var $test = RegExp.prototype.test; var $concat = Array.prototype.concat; var $join = Array.prototype.join; var $arrSlice = Array.prototype.slice; var $floor = Math.floor; var bigIntValueOf = typeof BigInt === 'function' ? BigInt.prototype.valueOf : null; var gOPS = Object.getOwnPropertySymbols; var symToString = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol' ? Symbol.prototype.toString : null; var hasShammedSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'object'; // ie, `has-tostringtag/shams var toStringTag = typeof Symbol === 'function' && Symbol.toStringTag && (typeof Symbol.toStringTag === hasShammedSymbols ? 'object' : 'symbol') ? Symbol.toStringTag : null; var isEnumerable = Object.prototype.propertyIsEnumerable; var gPO = (typeof Reflect === 'function' ? Reflect.getPrototypeOf : Object.getPrototypeOf) || ( [].__proto__ === Array.prototype // eslint-disable-line no-proto ? function (O) { return O.__proto__; // eslint-disable-line no-proto } : null ); function addNumericSeparator(num, str) { if ( num === Infinity || num === -Infinity || num !== num || (num && num > -1000 && num < 1000) || $test.call(/e/, str) ) { return str; } var sepRegex = /[0-9](?=(?:[0-9]{3})+(?![0-9]))/g; if (typeof num === 'number') { var int = num < 0 ? -$floor(-num) : $floor(num); // trunc(num) if (int !== num) { var intStr = String(int); var dec = $slice.call(str, intStr.length + 1); return $replace.call(intStr, sepRegex, '$&_') + '.' + $replace.call($replace.call(dec, /([0-9]{3})/g, '$&_'), /_$/, ''); } } return $replace.call(str, sepRegex, '$&_'); } var utilInspect = require('./util.inspect'); var inspectCustom = utilInspect.custom; var inspectSymbol = isSymbol(inspectCustom) ? inspectCustom : null; module.exports = function inspect_(obj, options, depth, seen) { var opts = options || {}; if (has(opts, 'quoteStyle') && (opts.quoteStyle !== 'single' && opts.quoteStyle !== 'double')) { throw new TypeError('option "quoteStyle" must be "single" or "double"'); } if ( has(opts, 'maxStringLength') && (typeof opts.maxStringLength === 'number' ? opts.maxStringLength < 0 && opts.maxStringLength !== Infinity : opts.maxStringLength !== null ) ) { throw new TypeError('option "maxStringLength", if provided, must be a positive integer, Infinity, or `null`'); } var customInspect = has(opts, 'customInspect') ? opts.customInspect : true; if (typeof customInspect !== 'boolean' && customInspect !== 'symbol') { throw new TypeError('option "customInspect", if provided, must be `true`, `false`, or `\'symbol\'`'); } if ( has(opts, 'indent') && opts.indent !== null && opts.indent !== '\t' && !(parseInt(opts.indent, 10) === opts.indent && opts.indent > 0) ) { throw new TypeError('option "indent" must be "\\t", an integer > 0, or `null`'); } if (has(opts, 'numericSeparator') && typeof opts.numericSeparator !== 'boolean') { throw new TypeError('option "numericSeparator", if provided, must be `true` or `false`'); } var numericSeparator = opts.numericSeparator; 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'; } var str = String(obj); return numericSeparator ? addNumericSeparator(obj, str) : str; } if (typeof obj === 'bigint') { var bigIntStr = String(obj) + 'n'; return numericSeparator ? addNumericSeparator(obj, bigIntStr) : bigIntStr; } var maxDepth = typeof opts.depth === 'undefined' ? 5 : opts.depth; if (typeof depth === 'undefined') { depth = 0; } if (depth >= maxDepth && maxDepth > 0 && typeof obj === 'object') { return isArray(obj) ? '[Array]' : '[Object]'; } var indent = getIndent(opts, depth); if (typeof seen === 'undefined') { seen = []; } else if (indexOf(seen, obj) >= 0) { return '[Circular]'; } function inspect(value, from, noIndent) { if (from) { seen = $arrSlice.call(seen); seen.push(from); } if (noIndent) { var newOpts = { depth: opts.depth }; if (has(opts, 'quoteStyle')) { newOpts.quoteStyle = opts.quoteStyle; } return inspect_(value, newOpts, depth + 1, seen); } return inspect_(value, opts, depth + 1, seen); } if (typeof obj === 'function' && !isRegExp(obj)) { // in older engines, regexes are callable var name = nameOf(obj); var keys = arrObjKeys(obj, inspect); return '[Function' + (name ? ': ' + name : ' (anonymous)') + ']' + (keys.length > 0 ? ' { ' + $join.call(keys, ', ') + ' }' : ''); } if (isSymbol(obj)) { var symString = hasShammedSymbols ? $replace.call(String(obj), /^(Symbol\(.*\))_[^)]*$/, '$1') : symToString.call(obj); return typeof obj === 'object' && !hasShammedSymbols ? markBoxed(symString) : symString; } if (isElement(obj)) { var s = '<' + $toLowerCase.call(String(obj.nodeName)); 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 '[]'; } var xs = arrObjKeys(obj, inspect); if (indent && !singleLineValues(xs)) { return '[' + indentedJoin(xs, indent) + ']'; } return '[ ' + $join.call(xs, ', ') + ' ]'; } if (isError(obj)) { var parts = arrObjKeys(obj, inspect); if (!('cause' in Error.prototype) && 'cause' in obj && !isEnumerable.call(obj, 'cause')) { return '{ [' + String(obj) + '] ' + $join.call($concat.call('[cause]: ' + inspect(obj.cause), parts), ', ') + ' }'; } if (parts.length === 0) { return '[' + String(obj) + ']'; } return '{ [' + String(obj) + '] ' + $join.call(parts, ', ') + ' }'; } if (typeof obj === 'object' && customInspect) { if (inspectSymbol && typeof obj[inspectSymbol] === 'function' && utilInspect) { return utilInspect(obj, { depth: maxDepth - depth }); } else if (customInspect !== 'symbol' && typeof obj.inspect === 'function') { return obj.inspect(); } } if (isMap(obj)) { var mapParts = []; if (mapForEach) { mapForEach.call(obj, function (value, key) { mapParts.push(inspect(key, obj, true) + ' => ' + inspect(value, obj)); }); } return collectionOf('Map', mapSize.call(obj), mapParts, indent); } if (isSet(obj)) { var setParts = []; if (setForEach) { setForEach.call(obj, function (value) { setParts.push(inspect(value, obj)); }); } return collectionOf('Set', setSize.call(obj), setParts, indent); } if (isWeakMap(obj)) { return weakCollectionOf('WeakMap'); } if (isWeakSet(obj)) { return weakCollectionOf('WeakSet'); } if (isWeakRef(obj)) { return weakCollectionOf('WeakRef'); } 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 ys = arrObjKeys(obj, inspect); var isPlainObject = gPO ? gPO(obj) === Object.prototype : obj instanceof Object || obj.constructor === Object; var protoTag = obj instanceof Object ? '' : 'null prototype'; var stringTag = !isPlainObject && toStringTag && Object(obj) === obj && toStringTag in obj ? $slice.call(toStr(obj), 8, -1) : protoTag ? 'Object' : ''; var constructorTag = isPlainObject || typeof obj.constructor !== 'function' ? '' : obj.constructor.name ? obj.constructor.name + ' ' : ''; var tag = constructorTag + (stringTag || protoTag ? '[' + $join.call($concat.call([], stringTag || [], protoTag || []), ': ') + '] ' : ''); if (ys.length === 0) { return tag + '{}'; } if (indent) { return tag + '{' + indentedJoin(ys, indent) + '}'; } return tag + '{ ' + $join.call(ys, ', ') + ' }'; } return String(obj); }; function wrapQuotes(s, defaultStyle, opts) { var quoteChar = (opts.quoteStyle || defaultStyle) === 'double' ? '"' : "'"; return quoteChar + s + quoteChar; } function quote(s) { return $replace.call(String(s), /"/g, '"'); } function isArray(obj) { return toStr(obj) === '[object Array]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); } function isDate(obj) { return toStr(obj) === '[object Date]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); } function isRegExp(obj) { return toStr(obj) === '[object RegExp]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); } function isError(obj) { return toStr(obj) === '[object Error]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); } function isString(obj) { return toStr(obj) === '[object String]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); } function isNumber(obj) { return toStr(obj) === '[object Number]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); } function isBoolean(obj) { return toStr(obj) === '[object Boolean]' && (!toStringTag || !(typeof obj === 'object' && toStringTag in obj)); } // Symbol and BigInt do have Symbol.toStringTag by spec, so that can't be used to eliminate false positives function isSymbol(obj) { if (hasShammedSymbols) { return obj && typeof obj === 'object' && obj instanceof Symbol; } if (typeof obj === 'symbol') { return true; } if (!obj || typeof obj !== 'object' || !symToString) { return false; } try { symToString.call(obj); return true; } catch (e) {} return false; } function isBigInt(obj) { if (!obj || typeof obj !== 'object' || !bigIntValueOf) { return false; } try { bigIntValueOf.call(obj); return true; } catch (e) {} return false; } 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 = $match.call(functionToString.call(f), /^function\s*([\w$]+)/); if (m) { return m[1]; } return null; } 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 || !x || typeof x !== 'object') { 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 isWeakMap(x) { if (!weakMapHas || !x || typeof x !== 'object') { return false; } try { weakMapHas.call(x, weakMapHas); try { weakSetHas.call(x, weakSetHas); } catch (s) { return true; } return x instanceof WeakMap; // core-js workaround, pre-v2.5.0 } catch (e) {} return false; } function isWeakRef(x) { if (!weakRefDeref || !x || typeof x !== 'object') { return false; } try { weakRefDeref.call(x); return true; } catch (e) {} return false; } function isSet(x) { if (!setSize || !x || typeof x !== 'object') { 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 isWeakSet(x) { if (!weakSetHas || !x || typeof x !== 'object') { return false; } try { weakSetHas.call(x, weakSetHas); try { weakMapHas.call(x, weakMapHas); } catch (s) { return true; } return x instanceof WeakSet; // 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) { if (str.length > opts.maxStringLength) { var remaining = str.length - opts.maxStringLength; var trailer = '... ' + remaining + ' more character' + (remaining > 1 ? 's' : ''); return inspectString($slice.call(str, 0, opts.maxStringLength), opts) + trailer; } // eslint-disable-next-line no-control-regex var s = $replace.call($replace.call(str, /(['\\])/g, '\\$1'), /[\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' : '') + $toUpperCase.call(n.toString(16)); } function markBoxed(str) { return 'Object(' + str + ')'; } function weakCollectionOf(type) { return type + ' { ? }'; } function collectionOf(type, size, entries, indent) { var joinedEntries = indent ? indentedJoin(entries, indent) : $join.call(entries, ', '); return type + ' (' + size + ') {' + joinedEntries + '}'; } function singleLineValues(xs) { for (var i = 0; i < xs.length; i++) { if (indexOf(xs[i], '\n') >= 0) { return false; } } return true; } function getIndent(opts, depth) { var baseIndent; if (opts.indent === '\t') { baseIndent = '\t'; } else if (typeof opts.indent === 'number' && opts.indent > 0) { baseIndent = $join.call(Array(opts.indent + 1), ' '); } else { return null; } return { base: baseIndent, prev: $join.call(Array(depth + 1), baseIndent) }; } function indentedJoin(xs, indent) { if (xs.length === 0) { return ''; } var lineJoiner = '\n' + indent.prev + indent.base; return lineJoiner + $join.call(xs, ',' + lineJoiner) + '\n' + indent.prev; } function arrObjKeys(obj, inspect) { var isArr = isArray(obj); var xs = []; if (isArr) { xs.length = obj.length; for (var i = 0; i < obj.length; i++) { xs[i] = has(obj, i) ? inspect(obj[i], obj) : ''; } } var syms = typeof gOPS === 'function' ? gOPS(obj) : []; var symMap; if (hasShammedSymbols) { symMap = {}; for (var k = 0; k < syms.length; k++) { symMap['$' + syms[k]] = syms[k]; } } for (var key in obj) { // eslint-disable-line no-restricted-syntax if (!has(obj, key)) { continue; } // eslint-disable-line no-restricted-syntax, no-continue if (isArr && String(Number(key)) === key && key < obj.length) { continue; } // eslint-disable-line no-restricted-syntax, no-continue if (hasShammedSymbols && symMap['$' + key] instanceof Symbol) { // this is to prevent shammed Symbols, which are stored as strings, from being included in the string key section continue; // eslint-disable-line no-restricted-syntax, no-continue } else if ($test.call(/[^\w$]/, key)) { xs.push(inspect(key, obj) + ': ' + inspect(obj[key], obj)); } else { xs.push(key + ': ' + inspect(obj[key], obj)); } } if (typeof gOPS === 'function') { for (var j = 0; j < syms.length; j++) { if (isEnumerable.call(obj, syms[j])) { xs.push('[' + inspect(syms[j]) + ']: ' + inspect(obj[syms[j]], obj)); } } } return xs; }