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'use strict';
const {
AggregateError,
AggregateErrorPrototype,
Array,
ArrayBuffer,
ArrayBufferPrototype,
ArrayIsArray,
ArrayPrototype,
ArrayPrototypeFilter,
ArrayPrototypeForEach,
ArrayPrototypeIncludes,
ArrayPrototypeIndexOf,
ArrayPrototypeJoin,
ArrayPrototypeMap,
ArrayPrototypePop,
ArrayPrototypePush,
ArrayPrototypePushApply,
ArrayPrototypeSlice,
ArrayPrototypeSort,
ArrayPrototypeSplice,
ArrayPrototypeUnshift,
BigIntPrototypeValueOf,
Boolean,
BooleanPrototype,
BooleanPrototypeValueOf,
DataView,
DataViewPrototype,
Date,
DatePrototype,
DatePrototypeGetTime,
DatePrototypeToISOString,
DatePrototypeToString,
Error,
ErrorPrototype,
ErrorPrototypeToString,
Function,
FunctionPrototype,
FunctionPrototypeBind,
FunctionPrototypeCall,
FunctionPrototypeSymbolHasInstance,
FunctionPrototypeToString,
JSONStringify,
Map,
MapPrototype,
MapPrototypeEntries,
MapPrototypeGetSize,
MathFloor,
MathMax,
MathMin,
MathRound,
MathSqrt,
MathTrunc,
Number,
NumberIsFinite,
NumberIsNaN,
NumberParseFloat,
NumberParseInt,
NumberPrototype,
NumberPrototypeToString,
NumberPrototypeValueOf,
Object,
ObjectAssign,
ObjectDefineProperty,
ObjectGetOwnPropertyDescriptor,
ObjectGetOwnPropertyNames,
ObjectGetOwnPropertySymbols,
ObjectGetPrototypeOf,
ObjectIs,
ObjectKeys,
ObjectPrototype,
ObjectPrototypeHasOwnProperty,
ObjectPrototypePropertyIsEnumerable,
ObjectPrototypeToString,
ObjectSeal,
ObjectSetPrototypeOf,
Promise,
PromisePrototype,
RangeError,
RangeErrorPrototype,
ReflectApply,
ReflectOwnKeys,
RegExp,
RegExpPrototype,
RegExpPrototypeExec,
RegExpPrototypeSymbolReplace,
RegExpPrototypeSymbolSplit,
RegExpPrototypeToString,
SafeMap,
SafeSet,
SafeStringIterator,
Set,
SetPrototype,
SetPrototypeGetSize,
SetPrototypeValues,
String,
StringPrototype,
StringPrototypeCharCodeAt,
StringPrototypeCodePointAt,
StringPrototypeEndsWith,
StringPrototypeIncludes,
StringPrototypeIndexOf,
StringPrototypeLastIndexOf,
StringPrototypeNormalize,
StringPrototypePadEnd,
StringPrototypePadStart,
StringPrototypeRepeat,
StringPrototypeReplace,
StringPrototypeReplaceAll,
StringPrototypeSlice,
StringPrototypeSplit,
StringPrototypeStartsWith,
StringPrototypeToLowerCase,
StringPrototypeValueOf,
SymbolIterator,
SymbolPrototypeToString,
SymbolPrototypeValueOf,
SymbolToPrimitive,
SymbolToStringTag,
TypeError,
TypeErrorPrototype,
TypedArray,
TypedArrayPrototype,
TypedArrayPrototypeGetLength,
TypedArrayPrototypeGetSymbolToStringTag,
Uint8Array,
WeakMap,
WeakMapPrototype,
WeakSet,
WeakSetPrototype,
globalThis,
uncurryThis,
} = primordials;
const {
constants: {
ALL_PROPERTIES,
ONLY_ENUMERABLE,
kPending,
kRejected,
},
getOwnNonIndexProperties,
getPromiseDetails,
getProxyDetails,
previewEntries,
getConstructorName: internalGetConstructorName,
getExternalValue,
} = internalBinding('util');
const {
customInspectSymbol,
isError,
join,
removeColors,
} = require('internal/util');
const {
isStackOverflowError,
} = require('internal/errors');
const {
isAsyncFunction,
isGeneratorFunction,
isAnyArrayBuffer,
isArrayBuffer,
isArgumentsObject,
isBoxedPrimitive,
isDataView,
isExternal,
isMap,
isMapIterator,
isModuleNamespaceObject,
isNativeError,
isPromise,
isSet,
isSetIterator,
isWeakMap,
isWeakSet,
isRegExp,
isDate,
isTypedArray,
isStringObject,
isNumberObject,
isBooleanObject,
isBigIntObject,
} = require('internal/util/types');
const assert = require('internal/assert');
const { BuiltinModule } = require('internal/bootstrap/realm');
const {
validateObject,
validateString,
kValidateObjectAllowArray,
} = require('internal/validators');
let hexSlice;
let internalUrl;
function pathToFileUrlHref(filepath) {
internalUrl ??= require('internal/url');
return internalUrl.pathToFileURL(filepath).href;
}
function isURL(value) {
internalUrl ??= require('internal/url');
return typeof value.href === 'string' && value instanceof internalUrl.URL;
}
const builtInObjects = new SafeSet(
ArrayPrototypeFilter(
ObjectGetOwnPropertyNames(globalThis),
(e) => RegExpPrototypeExec(/^[A-Z][a-zA-Z0-9]+$/, e) !== null,
),
);
// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot
const isUndetectableObject = (v) => typeof v === 'undefined' && v !== undefined;
// These options must stay in sync with `getUserOptions`. So if any option will
// be added or removed, `getUserOptions` must also be updated accordingly.
const inspectDefaultOptions = ObjectSeal({
showHidden: false,
depth: 2,
colors: false,
customInspect: true,
showProxy: false,
maxArrayLength: 100,
maxStringLength: 10000,
breakLength: 80,
compact: 3,
sorted: false,
getters: false,
numericSeparator: false,
});
const kObjectType = 0;
const kArrayType = 1;
const kArrayExtrasType = 2;
/* eslint-disable no-control-regex */
const strEscapeSequencesRegExp = /[\x00-\x1f\x27\x5c\x7f-\x9f]|[\ud800-\udbff](?![\udc00-\udfff])|(?<![\ud800-\udbff])[\udc00-\udfff]/;
const strEscapeSequencesReplacer = /[\x00-\x1f\x27\x5c\x7f-\x9f]|[\ud800-\udbff](?![\udc00-\udfff])|(?<![\ud800-\udbff])[\udc00-\udfff]/g;
const strEscapeSequencesRegExpSingle = /[\x00-\x1f\x5c\x7f-\x9f]|[\ud800-\udbff](?![\udc00-\udfff])|(?<![\ud800-\udbff])[\udc00-\udfff]/;
const strEscapeSequencesReplacerSingle = /[\x00-\x1f\x5c\x7f-\x9f]|[\ud800-\udbff](?![\udc00-\udfff])|(?<![\ud800-\udbff])[\udc00-\udfff]/g;
/* eslint-enable no-control-regex */
const keyStrRegExp = /^[a-zA-Z_][a-zA-Z_0-9]*$/;
const numberRegExp = /^(0|[1-9][0-9]*)$/;
const coreModuleRegExp = /^ {4}at (?:[^/\\(]+ \(|)node:(.+):\d+:\d+\)?$/;
const classRegExp = /^(\s+[^(]*?)\s*{/;
// eslint-disable-next-line node-core/no-unescaped-regexp-dot
const stripCommentsRegExp = /(\/\/.*?\n)|(\/\*(.|\n)*?\*\/)/g;
const kMinLineLength = 16;
// Constants to map the iterator state.
const kWeak = 0;
const kIterator = 1;
const kMapEntries = 2;
// Escaped control characters (plus the single quote and the backslash). Use
// empty strings to fill up unused entries.
const meta = [
'\\x00', '\\x01', '\\x02', '\\x03', '\\x04', '\\x05', '\\x06', '\\x07', // x07
'\\b', '\\t', '\\n', '\\x0B', '\\f', '\\r', '\\x0E', '\\x0F', // x0F
'\\x10', '\\x11', '\\x12', '\\x13', '\\x14', '\\x15', '\\x16', '\\x17', // x17
'\\x18', '\\x19', '\\x1A', '\\x1B', '\\x1C', '\\x1D', '\\x1E', '\\x1F', // x1F
'', '', '', '', '', '', '', "\\'", '', '', '', '', '', '', '', '', // x2F
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', // x3F
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', // x4F
'', '', '', '', '', '', '', '', '', '', '', '', '\\\\', '', '', '', // x5F
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '', // x6F
'', '', '', '', '', '', '', '', '', '', '', '', '', '', '', '\\x7F', // x7F
'\\x80', '\\x81', '\\x82', '\\x83', '\\x84', '\\x85', '\\x86', '\\x87', // x87
'\\x88', '\\x89', '\\x8A', '\\x8B', '\\x8C', '\\x8D', '\\x8E', '\\x8F', // x8F
'\\x90', '\\x91', '\\x92', '\\x93', '\\x94', '\\x95', '\\x96', '\\x97', // x97
'\\x98', '\\x99', '\\x9A', '\\x9B', '\\x9C', '\\x9D', '\\x9E', '\\x9F', // x9F
];
// Regex used for ansi escape code splitting
// Ref: https://github.com/chalk/ansi-regex/blob/f338e1814144efb950276aac84135ff86b72dc8e/index.js
// License: MIT by Sindre Sorhus <sindresorhus@gmail.com>
// Matches all ansi escape code sequences in a string
const ansi = new RegExp(
'[\\u001B\\u009B][[\\]()#;?]*' +
'(?:(?:(?:(?:;[-a-zA-Z\\d\\/\\#&.:=?%@~_]+)*' +
'|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/\\#&.:=?%@~_]*)*)?' +
'(?:\\u0007|\\u001B\\u005C|\\u009C))' +
'|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?' +
'[\\dA-PR-TZcf-nq-uy=><~]))', 'g',
);
let getStringWidth;
function getUserOptions(ctx, isCrossContext) {
const ret = {
stylize: ctx.stylize,
showHidden: ctx.showHidden,
depth: ctx.depth,
colors: ctx.colors,
customInspect: ctx.customInspect,
showProxy: ctx.showProxy,
maxArrayLength: ctx.maxArrayLength,
maxStringLength: ctx.maxStringLength,
breakLength: ctx.breakLength,
compact: ctx.compact,
sorted: ctx.sorted,
getters: ctx.getters,
numericSeparator: ctx.numericSeparator,
...ctx.userOptions,
};
// Typically, the target value will be an instance of `Object`. If that is
// *not* the case, the object may come from another vm.Context, and we want
// to avoid passing it objects from this Context in that case, so we remove
// the prototype from the returned object itself + the `stylize()` function,
// and remove all other non-primitives, including non-primitive user options.
if (isCrossContext) {
ObjectSetPrototypeOf(ret, null);
for (const key of ObjectKeys(ret)) {
if ((typeof ret[key] === 'object' || typeof ret[key] === 'function') &&
ret[key] !== null) {
delete ret[key];
}
}
ret.stylize = ObjectSetPrototypeOf((value, flavour) => {
let stylized;
try {
stylized = `${ctx.stylize(value, flavour)}`;
} catch {
// Continue regardless of error.
}
if (typeof stylized !== 'string') return value;
// `stylized` is a string as it should be, which is safe to pass along.
return stylized;
}, null);
}
return ret;
}
/**
* Echos the value of any input. Tries to print the value out
* in the best way possible given the different types.
* @param {any} value The value to print out.
* @param {object} opts Optional options object that alters the output.
*/
/* Legacy: value, showHidden, depth, colors */
function inspect(value, opts) {
// Default options
const ctx = {
budget: {},
indentationLvl: 0,
seen: [],
currentDepth: 0,
stylize: stylizeNoColor,
showHidden: inspectDefaultOptions.showHidden,
depth: inspectDefaultOptions.depth,
colors: inspectDefaultOptions.colors,
customInspect: inspectDefaultOptions.customInspect,
showProxy: inspectDefaultOptions.showProxy,
maxArrayLength: inspectDefaultOptions.maxArrayLength,
maxStringLength: inspectDefaultOptions.maxStringLength,
breakLength: inspectDefaultOptions.breakLength,
compact: inspectDefaultOptions.compact,
sorted: inspectDefaultOptions.sorted,
getters: inspectDefaultOptions.getters,
numericSeparator: inspectDefaultOptions.numericSeparator,
};
if (arguments.length > 1) {
// Legacy...
if (arguments.length > 2) {
if (arguments[2] !== undefined) {
ctx.depth = arguments[2];
}
if (arguments.length > 3 && arguments[3] !== undefined) {
ctx.colors = arguments[3];
}
}
// Set user-specified options
if (typeof opts === 'boolean') {
ctx.showHidden = opts;
} else if (opts) {
const optKeys = ObjectKeys(opts);
for (let i = 0; i < optKeys.length; ++i) {
const key = optKeys[i];
// TODO(BridgeAR): Find a solution what to do about stylize. Either make
// this function public or add a new API with a similar or better
// functionality.
if (
ObjectPrototypeHasOwnProperty(inspectDefaultOptions, key) ||
key === 'stylize') {
ctx[key] = opts[key];
} else if (ctx.userOptions === undefined) {
// This is required to pass through the actual user input.
ctx.userOptions = opts;
}
}
}
}
if (ctx.colors) ctx.stylize = stylizeWithColor;
if (ctx.maxArrayLength === null) ctx.maxArrayLength = Infinity;
if (ctx.maxStringLength === null) ctx.maxStringLength = Infinity;
return formatValue(ctx, value, 0);
}
inspect.custom = customInspectSymbol;
ObjectDefineProperty(inspect, 'defaultOptions', {
__proto__: null,
get() {
return inspectDefaultOptions;
},
set(options) {
validateObject(options, 'options');
return ObjectAssign(inspectDefaultOptions, options);
},
});
// Set Graphics Rendition https://en.wikipedia.org/wiki/ANSI_escape_code#graphics
// Each color consists of an array with the color code as first entry and the
// reset code as second entry.
const defaultFG = 39;
const defaultBG = 49;
inspect.colors = {
__proto__: null,
reset: [0, 0],
bold: [1, 22],
dim: [2, 22], // Alias: faint
italic: [3, 23],
underline: [4, 24],
blink: [5, 25],
// Swap foreground and background colors
inverse: [7, 27], // Alias: swapcolors, swapColors
hidden: [8, 28], // Alias: conceal
strikethrough: [9, 29], // Alias: strikeThrough, crossedout, crossedOut
doubleunderline: [21, 24], // Alias: doubleUnderline
black: [30, defaultFG],
red: [31, defaultFG],
green: [32, defaultFG],
yellow: [33, defaultFG],
blue: [34, defaultFG],
magenta: [35, defaultFG],
cyan: [36, defaultFG],
white: [37, defaultFG],
bgBlack: [40, defaultBG],
bgRed: [41, defaultBG],
bgGreen: [42, defaultBG],
bgYellow: [43, defaultBG],
bgBlue: [44, defaultBG],
bgMagenta: [45, defaultBG],
bgCyan: [46, defaultBG],
bgWhite: [47, defaultBG],
framed: [51, 54],
overlined: [53, 55],
gray: [90, defaultFG], // Alias: grey, blackBright
redBright: [91, defaultFG],
greenBright: [92, defaultFG],
yellowBright: [93, defaultFG],
blueBright: [94, defaultFG],
magentaBright: [95, defaultFG],
cyanBright: [96, defaultFG],
whiteBright: [97, defaultFG],
bgGray: [100, defaultBG], // Alias: bgGrey, bgBlackBright
bgRedBright: [101, defaultBG],
bgGreenBright: [102, defaultBG],
bgYellowBright: [103, defaultBG],
bgBlueBright: [104, defaultBG],
bgMagentaBright: [105, defaultBG],
bgCyanBright: [106, defaultBG],
bgWhiteBright: [107, defaultBG],
};
function defineColorAlias(target, alias) {
ObjectDefineProperty(inspect.colors, alias, {
__proto__: null,
get() {
return this[target];
},
set(value) {
this[target] = value;
},
configurable: true,
enumerable: false,
});
}
defineColorAlias('gray', 'grey');
defineColorAlias('gray', 'blackBright');
defineColorAlias('bgGray', 'bgGrey');
defineColorAlias('bgGray', 'bgBlackBright');
defineColorAlias('dim', 'faint');
defineColorAlias('strikethrough', 'crossedout');
defineColorAlias('strikethrough', 'strikeThrough');
defineColorAlias('strikethrough', 'crossedOut');
defineColorAlias('hidden', 'conceal');
defineColorAlias('inverse', 'swapColors');
defineColorAlias('inverse', 'swapcolors');
defineColorAlias('doubleunderline', 'doubleUnderline');
// Don't use 'blue' not visible on cmd.exe
inspect.styles = ObjectAssign({ __proto__: null }, {
special: 'cyan',
number: 'yellow',
bigint: 'yellow',
boolean: 'yellow',
undefined: 'grey',
null: 'bold',
string: 'green',
symbol: 'green',
date: 'magenta',
// "name": intentionally not styling
regexp: highlightRegExp,
module: 'underline',
});
// Define the palette for RegExp group depth highlighting. Can be changed by users.
inspect.styles.regexp.colors = ['green', 'red', 'yellow', 'cyan', 'magenta'];
const highlightRegExpColors = inspect.styles.regexp.colors.slice();
/**
* Colorize a JavaScript RegExp pattern per ECMAScript grammar.
* This is a tolerant single-pass highlighter using heuristics in some cases.
* It supports: groups (named/unnamed, lookaround), assertions, alternation,
* quantifiers, escapes (incl. Unicode properties), character classes and
* backreferences.
* @param {string} regexpString
* @returns {string}
*/
function highlightRegExp(regexpString) {
let out = '';
let i = 0;
let depth = 0;
let inClass = false;
// TODO(BridgeAR): Add group type tracking. That allows to increase the depth
// in case the same type is next to each other.
// let groupType = 0;
// Verify palette and update cache if user changed colors
const paletteNames = highlightRegExp.colors?.length > 0 ?
highlightRegExp.colors :
highlightRegExpColors;
const palette = paletteNames.reduce((acc, name) => {
const color = inspect.colors[name];
if (color) acc.push([`\u001b[${color[0]}m`, `\u001b[${color[1]}m`]);
return acc;
}, []);
function writeGroup(start, end, decreaseDepth = 1) {
let seq = '';
i++;
// Only checking for the closing delimiter is a fast heuristic for regular
// expressions without the u or v flag. A safer check would verify that the
// read characters are all alphanumeric.
while (i < regexpString.length && regexpString[i] !== end) {
seq += regexpString[i++];
}
if (i < regexpString.length) {
depth -= decreaseDepth;
write(start);
writeDepth(seq, 1, 1);
write(end);
depth += decreaseDepth;
} else {
// The group is not closed which would lead to mistakes in the output.
// This is a workaround to prevent output from being corrupted.
writeDepth(start, 1, -seq.length);
}
}
const write = (str) => {
const idx = depth % palette.length;
// Safeguard against bugs in the implementation.
const color = palette[idx] ?? palette[0];
out += color[0] + str + color[1];
return idx;
};
function writeDepth(str, incDepth, incI) {
depth += incDepth;
write(str);
depth -= incDepth;
i += incI;
}
// Opening '/'
write('/');
depth++;
i = 1;
// Parse pattern until next unescaped '/'
while (i < regexpString.length) {
const ch = regexpString[i];
if (inClass) {
if (ch === '\\') {
let seq = '\\';
i++;
if (i < regexpString.length) {
seq += regexpString[i++];
const next = seq[1];
if (next === 'u' && regexpString[i] === '{') {
writeGroup(`${seq}{`, '}', 0);
continue;
} else if ((next === 'p' || next === 'P') && regexpString[i] === '{') {
writeGroup(`${seq}{`, '}', 0);
continue;
} else if (seq[1] === 'x') {
seq += regexpString.slice(i, i + 2);
i += 2;
}
}
write(seq);
} else if (ch === ']') {
depth--;
write(']');
i++;
inClass = false;
} else if (ch === '-' && regexpString[i - 1] !== '[' &&
i + 1 < regexpString.length && regexpString[i + 1] !== ']') {
writeDepth('-', 1, 1);
} else {
write(ch);
i++;
}
} else if (ch === '[') {
// Enter class
write('[');
depth++;
i++;
inClass = true;
} else if (ch === '(') {
write('(');
depth++;
i++;
if (i < regexpString.length && regexpString[i] === '?') {
// Assertions and named groups
i++;
const a = i < regexpString.length ? regexpString[i] : '';
if (a === ':' || a === '=' || a === '!') {
writeDepth(`?${a}`, -1, 1);
} else {
const b = i + 1 < regexpString.length ? regexpString[i + 1] : '';
if (a === '<' && (b === '=' || b === '!')) {
writeDepth(`?<${b}`, -1, 2);
} else if (a === '<') {
// Named capture: write '?<name>' as a single colored token
i++; // consume '<'
const start = i;
while (i < regexpString.length && regexpString[i] !== '>') {
i++;
}
const name = regexpString.slice(start, i);
if (i < regexpString.length && regexpString[i] === '>') {
depth--;
write('?<');
writeDepth(name, 1, 0);
write('>');
depth++;
i++;
} else {
writeDepth('?<', -1, 0);
write(name);
}
} else {
write('?');
}
}
}
} else if (ch === ')') {
depth--;
write(')');
i++;
} else if (ch === '\\') {
let seq = '\\';
i++;
if (i < regexpString.length) {
seq += regexpString[i++];
const next = seq[1];
if (i < regexpString.length) {
if (next === 'u' && regexpString[i] === '{') {
writeGroup(`${seq}{`, '}', 0);
continue;
} else if (next === 'x') {
seq += regexpString.slice(i, i + 2);
i += 2;
} else if (next >= '0' && next <= '9') {
while (i < regexpString.length && regexpString[i] >= '0' && regexpString[i] <= '9') {
seq += regexpString[i++];
}
} else if (next === 'k' && regexpString[i] === '<') {
writeGroup(`${seq}<`, '>');
continue;
} else if ((next === 'p' || next === 'P') && regexpString[i] === '{') {
// Unicode properties
writeGroup(`${seq}{`, '}', 0);
continue;
}
}
}
writeDepth(seq, 1, 0);
} else if (ch === '|' || ch === '+' || ch === '*' || ch === '?' || ch === ',' || ch === '^' || ch === '$') {
writeDepth(ch, 3, 1);
} else if (ch === '{') {
i++;
let digits = '';
while (i < regexpString.length && regexpString[i] >= '0' && regexpString[i] <= '9') {
digits += regexpString[i++];
}
if (digits) {
write('{');
depth++;
writeDepth(digits, 1, 0);
}
if (i < regexpString.length) {
if (regexpString[i] === ',') {
if (!digits) {
write('{');
depth++;
}
write(',');
i++;
} else if (!digits) {
depth += 1;
write('{');
depth -= 1;
continue;
}
}
let digits2 = '';
while (i < regexpString.length && regexpString[i] >= '0' && regexpString[i] <= '9') {
digits2 += regexpString[i++];
}
if (digits2) {
writeDepth(digits2, 1, 0);
}
if (i < regexpString.length && regexpString[i] === '}') {
depth--;
write('}');
i++;
}
if (i < regexpString.length && regexpString[i] === '?') {
writeDepth('?', 3, 1);
}
} else if (ch === '.') {
writeDepth(ch, 2, 1);
} else if (ch === '/') {
// Stop at closing delimiter (unescaped, outside of character class)
break;
} else {
writeDepth(ch, 1, 1);
}
}
// Closing delimiter and flags
writeDepth('/', -1, 1);
if (i < regexpString.length) {
write(regexpString.slice(i));
}
return out;
}
function addQuotes(str, quotes) {
if (quotes === -1) {
return `"${str}"`;
}
if (quotes === -2) {
return `\`${str}\``;
}
return `'${str}'`;
}
function escapeFn(str) {
const charCode = StringPrototypeCharCodeAt(str);
return meta.length > charCode ? meta[charCode] : `\\u${NumberPrototypeToString(charCode, 16)}`;
}
// Escape control characters, single quotes and the backslash.
// This is similar to JSON stringify escaping.
function strEscape(str) {
let escapeTest = strEscapeSequencesRegExp;
let escapeReplace = strEscapeSequencesReplacer;
let singleQuote = 39;
// Check for double quotes. If not present, do not escape single quotes and
// instead wrap the text in double quotes. If double quotes exist, check for
// backticks. If they do not exist, use those as fallback instead of the
// double quotes.
if (StringPrototypeIncludes(str, "'")) {
// This invalidates the charCode and therefore can not be matched for
// anymore.
if (!StringPrototypeIncludes(str, '"')) {
singleQuote = -1;
} else if (!StringPrototypeIncludes(str, '`') &&
!StringPrototypeIncludes(str, '${')) {
singleQuote = -2;
}
if (singleQuote !== 39) {
escapeTest = strEscapeSequencesRegExpSingle;
escapeReplace = strEscapeSequencesReplacerSingle;
}
}
// Some magic numbers that worked out fine while benchmarking with v8 6.0
if (str.length < 5000 && RegExpPrototypeExec(escapeTest, str) === null)
return addQuotes(str, singleQuote);
if (str.length > 100) {
str = RegExpPrototypeSymbolReplace(escapeReplace, str, escapeFn);
return addQuotes(str, singleQuote);
}
let result = '';
let last = 0;
for (let i = 0; i < str.length; i++) {
const point = StringPrototypeCharCodeAt(str, i);
if (point === singleQuote ||
point === 92 ||
point < 32 ||
(point > 126 && point < 160)) {
if (last === i) {
result += meta[point];
} else {
result += `${StringPrototypeSlice(str, last, i)}${meta[point]}`;
}
last = i + 1;
} else if (point >= 0xd800 && point <= 0xdfff) {
if (point <= 0xdbff && i + 1 < str.length) {
const point = StringPrototypeCharCodeAt(str, i + 1);
if (point >= 0xdc00 && point <= 0xdfff) {
i++;
continue;
}
}
result += `${StringPrototypeSlice(str, last, i)}\\u${NumberPrototypeToString(point, 16)}`;
last = i + 1;
}
}
if (last !== str.length) {
result += StringPrototypeSlice(str, last);
}
return addQuotes(result, singleQuote);
}
function stylizeWithColor(str, styleType) {
const style = inspect.styles[styleType];
if (style !== undefined) {
const color = inspect.colors[style];
if (color !== undefined) {
return `\u001b[${color[0]}m${str}\u001b[${color[1]}m`;
}
if (typeof style === 'function') {
return style(str);
}
}
return str;
}
function stylizeNoColor(str) {
return str;
}
// Return a new empty array to push in the results of the default formatter.
function getEmptyFormatArray() {
return [];
}
function isInstanceof(object, proto) {
try {
return object instanceof proto;
} catch {
return false;
}
}
// Special-case for some builtin prototypes in case their `constructor` property has been tampered.
const wellKnownPrototypes = new SafeMap()
.set(ArrayPrototype, { name: 'Array', constructor: Array })
.set(ArrayBufferPrototype, { name: 'ArrayBuffer', constructor: ArrayBuffer })
.set(FunctionPrototype, { name: 'Function', constructor: Function })
.set(MapPrototype, { name: 'Map', constructor: Map })
.set(SetPrototype, { name: 'Set', constructor: Set })
.set(ObjectPrototype, { name: 'Object', constructor: Object })
.set(TypedArrayPrototype, { name: 'TypedArray', constructor: TypedArray })
.set(RegExpPrototype, { name: 'RegExp', constructor: RegExp })
.set(DatePrototype, { name: 'Date', constructor: Date })
.set(DataViewPrototype, { name: 'DataView', constructor: DataView })
.set(ErrorPrototype, { name: 'Error', constructor: Error })
.set(AggregateErrorPrototype, { name: 'AggregateError', constructor: AggregateError })
.set(RangeErrorPrototype, { name: 'RangeError', constructor: RangeError })
.set(TypeErrorPrototype, { name: 'TypeError', constructor: TypeError })
.set(BooleanPrototype, { name: 'Boolean', constructor: Boolean })
.set(NumberPrototype, { name: 'Number', constructor: Number })
.set(StringPrototype, { name: 'String', constructor: String })
.set(PromisePrototype, { name: 'Promise', constructor: Promise })
.set(WeakMapPrototype, { name: 'WeakMap', constructor: WeakMap })
.set(WeakSetPrototype, { name: 'WeakSet', constructor: WeakSet });
function getConstructorName(obj, ctx, recurseTimes, protoProps) {
let firstProto;
const tmp = obj;
while (obj || isUndetectableObject(obj)) {
const wellKnownPrototypeNameAndConstructor = wellKnownPrototypes.get(obj);
if (wellKnownPrototypeNameAndConstructor !== undefined) {
const { name, constructor } = wellKnownPrototypeNameAndConstructor;
if (FunctionPrototypeSymbolHasInstance(constructor, tmp)) {
if (protoProps !== undefined && firstProto !== obj) {
addPrototypeProperties(
ctx, tmp, firstProto || tmp, recurseTimes, protoProps);
}
return name;
}
}
const descriptor = ObjectGetOwnPropertyDescriptor(obj, 'constructor');
if (descriptor !== undefined &&
typeof descriptor.value === 'function' &&
descriptor.value.name !== '' &&
isInstanceof(tmp, descriptor.value)) {
if (protoProps !== undefined &&
(firstProto !== obj ||
!builtInObjects.has(descriptor.value.name))) {
addPrototypeProperties(
ctx, tmp, firstProto || tmp, recurseTimes, protoProps);
}
return String(descriptor.value.name);
}
obj = ObjectGetPrototypeOf(obj);
if (firstProto === undefined) {
firstProto = obj;
}
}
if (firstProto === null) {
return null;
}
const res = internalGetConstructorName(tmp);
if (recurseTimes > ctx.depth && ctx.depth !== null) {
return `${res} <Complex prototype>`;
}
const protoConstr = getConstructorName(
firstProto, ctx, recurseTimes + 1, protoProps);
if (protoConstr === null) {
return `${res} <${inspect(firstProto, {
...ctx,
customInspect: false,
depth: -1,
})}>`;
}
return `${res} <${protoConstr}>`;
}
// This function has the side effect of adding prototype properties to the
// `output` argument (which is an array). This is intended to highlight user
// defined prototype properties.
function addPrototypeProperties(ctx, main, obj, recurseTimes, output) {
let depth = 0;
let keys;
let keySet;
do {
if (depth !== 0 || main === obj) {
obj = ObjectGetPrototypeOf(obj);
// Stop as soon as a null prototype is encountered.
if (obj === null) {
return;
}
// Stop as soon as a built-in object type is detected.
const descriptor = ObjectGetOwnPropertyDescriptor(obj, 'constructor');
if (descriptor !== undefined &&
typeof descriptor.value === 'function' &&
builtInObjects.has(descriptor.value.name)) {
return;
}
}
if (depth === 0) {
keySet = new SafeSet();
} else {
ArrayPrototypeForEach(keys, (key) => keySet.add(key));
}
// Get all own property names and symbols.
keys = ReflectOwnKeys(obj);
ArrayPrototypePush(ctx.seen, main);
for (const key of keys) {
// Ignore the `constructor` property and keys that exist on layers above.
if (key === 'constructor' ||