Press n or j to go to the next uncovered block, b, p or k for the previous block.
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153346x 153346x 153346x 153346x 153346x 153346x 153346x 153346x 153346x 153337x 246423x 231741x 246422x 14682x 14682x 246423x 46927x 46927x 246423x 86206x 153346x 153346x 44x 171178x 171178x 171178x 171049x 169677x 169677x 169677x 169677x 169677x 169677x 1065x 1065x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 169677x 153217x 153217x 153217x 153217x 153217x 153217x 86098x 86098x 86096x 86096x 86096x 86098x 153217x 169677x 171049x 171049x 171049x 171049x 171049x 171178x 171178x 171178x 105x 105x 105x 171178x 171178x 171178x 171178x 171178x 171178x 171178x 171178x 171178x 44x 26x 26x 26x 26x 26x 1x 1x 26x 26x 26x 3x 3x 23x 23x 26x 1x 1x 26x 26x 26x 26x 26x 30x 26x 22x 22x 22x 22x 26x 26x 26x 44x 44x 44x 44x 1464x 1464x 1464x 1464x 2x 2x 1x 1x 1x 1x 1x 1x 2x 2x 1x 1x 1x 1x 1464x 44x 9156x 9156x 9156x 44x 44627x 44627x 7x 7x 7x 44627x 44627x 44x 578x 578x 578x 578x 578x 578x 578x 44x 16x 16x 16x 16x 16x 16x 16x 44x 53776x 53776x 53776x 53776x 53776x 53776x 53776x 50750x 37853x 37853x 50685x 50685x 50685x 50748x 234653x 7888x 7888x 7868x 7868x 5851x 5851x 77x 5848x 2x 5774x 5772x 5772x 5760x 5771x 12x 12x 12x 12x 12x 12x 12x 5851x 5851x 7868x 1464x 1464x 7868x 468x 468x 7x 468x 1x 461x 460x 460x 468x 468x 7868x 8x 8x 7868x 20x 20x 20x 20x 20x 20x 20x 7868x 31x 31x 7x 31x 1x 24x 23x 23x 23x 31x 31x 7868x 19x 19x 1x 19x 18x 18x 18x 19x 19x 7868x 2x 2x 2x 7868x 3x 3x 3x 7868x 2x 7868x 7868x 6034x 6034x 7862x 7862x 7888x 4x 4x 4x 7888x 234653x 50750x 6581x 6581x 6581x 2256x 2256x 6581x 50750x 53776x 53776x 21930x 21930x 21930x 21930x 21930x 21930x 15922x 53776x 44x 44x 44x 44x 44x 44x 44x 44x 44x 5907448x 5907448x 5907448x 5907448x 5907448x 6424899x 6424899x 6424899x 6424899x 1195964x 1195964x 1195964x 6424899x 6424899x 5907448x 44x 44x 44x 44x 44x 44x 27044x 27044x 27044x 27044x 27044x 44x 44x 44x 44x 44x 44x 44x 44x 44x | 'use strict';
const {
Array,
ArrayIsArray,
ArrayPrototypeFilter,
ArrayPrototypeForEach,
ArrayPrototypePop,
ArrayPrototypePush,
ArrayPrototypePushApply,
ArrayPrototypeSort,
ArrayPrototypeUnshift,
BigIntPrototypeValueOf,
BooleanPrototypeValueOf,
DatePrototypeGetTime,
DatePrototypeToISOString,
DatePrototypeToString,
ErrorPrototypeToString,
FunctionPrototypeCall,
FunctionPrototypeToString,
JSONStringify,
MapPrototypeGetSize,
MapPrototypeEntries,
MathFloor,
MathMax,
MathMin,
MathRound,
MathSqrt,
MathTrunc,
Number,
NumberIsFinite,
NumberIsNaN,
NumberParseFloat,
NumberParseInt,
NumberPrototypeValueOf,
Object,
ObjectAssign,
ObjectCreate,
ObjectDefineProperty,
ObjectGetOwnPropertyDescriptor,
ObjectGetOwnPropertyNames,
ObjectGetOwnPropertySymbols,
ObjectGetPrototypeOf,
ObjectIs,
ObjectKeys,
ObjectPrototypeHasOwnProperty,
ObjectPrototypePropertyIsEnumerable,
ObjectSeal,
ObjectSetPrototypeOf,
ReflectOwnKeys,
RegExp,
RegExpPrototypeTest,
RegExpPrototypeToString,
SafeStringIterator,
SafeMap,
SafeSet,
SetPrototypeGetSize,
SetPrototypeValues,
String,
StringPrototypeCharCodeAt,
StringPrototypeCodePointAt,
StringPrototypeIncludes,
StringPrototypeNormalize,
StringPrototypePadEnd,
StringPrototypePadStart,
StringPrototypeRepeat,
StringPrototypeReplace,
StringPrototypeSlice,
StringPrototypeSplit,
StringPrototypeToLowerCase,
StringPrototypeTrim,
StringPrototypeValueOf,
SymbolPrototypeToString,
SymbolPrototypeValueOf,
SymbolIterator,
SymbolToStringTag,
TypedArrayPrototypeGetLength,
TypedArrayPrototypeGetSymbolToStringTag,
Uint8Array,
globalThis,
uncurryThis,
} = primordials;
const {
getOwnNonIndexProperties,
getPromiseDetails,
getProxyDetails,
kPending,
kRejected,
previewEntries,
getConstructorName: internalGetConstructorName,
getExternalValue,
propertyFilter: {
ALL_PROPERTIES,
ONLY_ENUMERABLE
}
} = internalBinding('util');
const {
customInspectSymbol,
isError,
join,
removeColors
} = require('internal/util');
const {
codes: {
ERR_INVALID_ARG_TYPE
},
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 { NativeModule } = require('internal/bootstrap/loaders');
const {
validateObject,
validateString,
} = require('internal/validators');
let hexSlice;
const builtInObjects = new SafeSet(
ArrayPrototypeFilter(
ObjectGetOwnPropertyNames(globalThis),
(e) => RegExpPrototypeTest(/^[A-Z][a-zA-Z0-9]+$/, e)
)
);
// https://tc39.es/ecma262/#sec-IsHTMLDDA-internal-slot
const isUndetectableObject = (v) => typeof v === 'undefined' && v !== undefined;
// These options must stay in sync with `getUserOptions`. So if any option will
// be added or removed, `getUserOptions` must also be updated accordingly.
const inspectDefaultOptions = ObjectSeal({
showHidden: false,
depth: 2,
colors: false,
customInspect: true,
showProxy: false,
maxArrayLength: 100,
maxStringLength: 10000,
breakLength: 80,
compact: 3,
sorted: false,
getters: false,
numericSeparator: false,
});
const kObjectType = 0;
const kArrayType = 1;
const kArrayExtrasType = 2;
/* eslint-disable no-control-regex */
const strEscapeSequencesRegExp = /[\x00-\x1f\x27\x5c\x7f-\x9f]|[\ud800-\udbff](?![\udc00-\udfff])|(?<![\ud800-\udbff])[\udc00-\udfff]/;
const strEscapeSequencesReplacer = /[\x00-\x1f\x27\x5c\x7f-\x9f]|[\ud800-\udbff](?![\udc00-\udfff])|(?<![\ud800-\udbff])[\udc00-\udfff]/g;
const strEscapeSequencesRegExpSingle = /[\x00-\x1f\x5c\x7f-\x9f]|[\ud800-\udbff](?![\udc00-\udfff])|(?<![\ud800-\udbff])[\udc00-\udfff]/;
const strEscapeSequencesReplacerSingle = /[\x00-\x1f\x5c\x7f-\x9f]|[\ud800-\udbff](?![\udc00-\udfff])|(?<![\ud800-\udbff])[\udc00-\udfff]/g;
/* eslint-enable no-control-regex */
const keyStrRegExp = /^[a-zA-Z_][a-zA-Z_0-9]*$/;
const numberRegExp = /^(0|[1-9][0-9]*)$/;
const coreModuleRegExp = /^ {4}at (?:[^/\\(]+ \(|)node:(.+):\d+:\d+\)?$/;
const nodeModulesRegExp = /[/\\]node_modules[/\\](.+?)(?=[/\\])/g;
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
// Adopted from https://github.com/chalk/ansi-regex/blob/HEAD/index.js
// License: MIT, authors: @sindresorhus, Qix-, arjunmehta and LitoMore
// Matches all ansi escape code sequences in a string
const ansiPattern = '[\\u001B\\u009B][[\\]()#;?]*' +
'(?:(?:(?:(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]+)*' +
'|[a-zA-Z\\d]+(?:;[-a-zA-Z\\d\\/#&.:=?%@~_]*)*)?\\u0007)' +
'|(?:(?:\\d{1,4}(?:;\\d{0,4})*)?[\\dA-PR-TZcf-ntqry=><~]))';
const ansi = new RegExp(ansiPattern, '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', {
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 = ObjectAssign(ObjectCreate(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, {
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');
// TODO(BridgeAR): Add function style support for more complex styles.
// Don't use 'blue' not visible on cmd.exe
inspect.styles = ObjectAssign(ObjectCreate(null), {
special: 'cyan',
number: 'yellow',
bigint: 'yellow',
boolean: 'yellow',
undefined: 'grey',
null: 'bold',
string: 'green',
symbol: 'green',
date: 'magenta',
// "name": intentionally not styling
// TODO(BridgeAR): Highlight regular expressions properly.
regexp: 'red',
module: 'underline'
});
function addQuotes(str, quotes) {
if (quotes === -1) {
return `"${str}"`;
}
if (quotes === -2) {
return `\`${str}\``;
}
return `'${str}'`;
}
function escapeFn(str) {
const charCode = StringPrototypeCharCodeAt(str);
return meta.length > charCode ? meta[charCode] : `\\u${charCode.toString(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, '${')) {
singleQuote = -2;
}
if (singleQuote !== 39) {
escapeTest = strEscapeSequencesRegExpSingle;
escapeReplace = strEscapeSequencesReplacerSingle;
}
}
// Some magic numbers that worked out fine while benchmarking with v8 6.0
if (str.length < 5000 && !RegExpPrototypeTest(escapeTest, str))
return addQuotes(str, singleQuote);
if (str.length > 100) {
str = StringPrototypeReplace(str, escapeReplace, escapeFn);
return addQuotes(str, singleQuote);
}
let result = '';
let last = 0;
for (let i = 0; i < str.length; i++) {
const point = StringPrototypeCharCodeAt(str, i);
if (point === singleQuote ||
point === 92 ||
point < 32 ||
(point > 126 && point < 160)) {
if (last === i) {
result += meta[point];
} else {
result += `${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)}${`\\u${point.toString(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[${color[1]}m`;
}
return str;
}
function stylizeNoColor(str) {
return str;
}
// Return a new empty array to push in the results of the default formatter.
function getEmptyFormatArray() {
return [];
}
function isInstanceof(object, proto) {
try {
return object instanceof proto;
} catch {
return false;
}
}
function getConstructorName(obj, ctx, recurseTimes, protoProps) {
let firstProto;
const tmp = obj;
while (obj || isUndetectableObject(obj)) {
const descriptor = ObjectGetOwnPropertyDescriptor(obj, 'constructor');
if (descriptor !== undefined &&
typeof descriptor.value === 'function' &&
descriptor.value.name !== '' &&
isInstanceof(tmp, descriptor.value)) {
if (protoProps !== undefined &&
(firstProto !== obj ||
!builtInObjects.has(descriptor.value.name))) {
addPrototypeProperties(
ctx, tmp, firstProto || tmp, recurseTimes, protoProps);
}
return descriptor.value.name;
}
obj = ObjectGetPrototypeOf(obj);
if (firstProto === undefined) {
firstProto = obj;
}
}
if (firstProto === null) {
return null;
}
const res = internalGetConstructorName(tmp);
if (recurseTimes > ctx.depth && ctx.depth !== null) {
return `${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' ||
ObjectPrototypeHasOwnProperty(main, key) ||
(depth !== 0 && keySet.has(key))) {
continue;
}
const desc = ObjectGetOwnPropertyDescriptor(obj, key);
if (typeof desc.value === 'function') {
continue;
}
const value = formatProperty(
ctx, obj, recurseTimes, key, kObjectType, desc, main);
if (ctx.colors) {
// Faint!
ArrayPrototypePush(output, `\u001b[2m${value}\u001b[22m`);
} else {
ArrayPrototypePush(output, value);
}
}
ArrayPrototypePop(ctx.seen);
// Limit the inspection to up to three prototype layers. Using `recurseTimes`
// is not a good choice here, because it's as if the properties are declared
// on the current object from the users perspective.
} while (++depth !== 3);
}
function getPrefix(constructor, tag, fallback, size = '') {
if (constructor === null) {
if (tag !== '' && fallback !== tag) {
return `[${fallback}${size}: null prototype] [${tag}] `;
}
return `[${fallback}${size}: null prototype] `;
}
if (tag !== '' && constructor !== tag) {
return `${constructor}${size} [${tag}] `;
}
return `${constructor}${size} `;
}
// Look up the keys of the object.
function getKeys(value, showHidden) {
let keys;
const symbols = ObjectGetOwnPropertySymbols(value);
if (showHidden) {
keys = ObjectGetOwnPropertyNames(value);
if (symbols.length !== 0)
ArrayPrototypePushApply(keys, symbols);
} else {
// This might throw if `value` is a Module Namespace Object from an
// unevaluated module, but we don't want to perform the actual type
// check because it's expensive.
// TODO(devsnek): track https://github.com/tc39/ecma262/issues/1209
// and modify this logic as needed.
try {
keys = ObjectKeys(value);
} catch (err) {
assert(isNativeError(err) && err.name === 'ReferenceError' &&
isModuleNamespaceObject(value));
keys = ObjectGetOwnPropertyNames(value);
}
if (symbols.length !== 0) {
const filter = (key) => ObjectPrototypePropertyIsEnumerable(value, key);
ArrayPrototypePushApply(keys, ArrayPrototypeFilter(symbols, filter));
}
}
return keys;
}
function getCtxStyle(value, constructor, tag) {
let fallback = '';
if (constructor === null) {
fallback = internalGetConstructorName(value);
if (fallback === tag) {
fallback = 'Object';
}
}
return getPrefix(constructor, tag, fallback);
}
function formatProxy(ctx, proxy, recurseTimes) {
if (recurseTimes > ctx.depth && ctx.depth !== null) {
return ctx.stylize('Proxy [Array]', 'special');
}
recurseTimes += 1;
ctx.indentationLvl += 2;
const res = [
formatValue(ctx, proxy[0], recurseTimes),
formatValue(ctx, proxy[1], recurseTimes),
];
ctx.indentationLvl -= 2;
return reduceToSingleString(
ctx, res, '', ['Proxy [', ']'], kArrayExtrasType, recurseTimes);
}
// Note: using `formatValue` directly requires the indentation level to be
// corrected by setting `ctx.indentationLvL += diff` and then to decrease the
// value afterwards again.
function formatValue(ctx, value, recurseTimes, typedArray) {
// Primitive types cannot have properties.
if (typeof value !== 'object' &&
typeof value !== 'function' &&
!isUndetectableObject(value)) {
return formatPrimitive(ctx.stylize, value, ctx);
}
if (value === null) {
return ctx.stylize('null', 'null');
}
// Memorize the context for custom inspection on proxies.
const context = value;
// Always check for proxies to prevent side effects and to prevent triggering
// any proxy handlers.
const proxy = getProxyDetails(value, !!ctx.showProxy);
if (proxy !== undefined) {
if (ctx.showProxy) {
return formatProxy(ctx, proxy, recurseTimes);
}
value = proxy;
}
// Provide a hook for user-specified inspect functions.
// Check that value is an object with an inspect function on it.
if (ctx.customInspect) {
const maybeCustom = value[customInspectSymbol];
if (typeof maybeCustom === 'function' &&
// Filter out the util module, its inspect function is special.
maybeCustom !== inspect &&
// Also filter out any prototype objects using the circular check.
!(value.constructor && value.constructor.prototype === value)) {
// This makes sure the recurseTimes are reported as before while using
// a counter internally.
const depth = ctx.depth === null ? null : ctx.depth - recurseTimes;
const isCrossContext =
proxy !== undefined || !(context instanceof Object);
const ret = FunctionPrototypeCall(
maybeCustom,
context,
depth,
getUserOptions(ctx, isCrossContext),
inspect
);
// If the custom inspection method returned `this`, don't go into
// infinite recursion.
if (ret !== context) {
if (typeof ret !== 'string') {
return formatValue(ctx, ret, recurseTimes);
}
return ret.replace(/\n/g, `\n${' '.repeat(ctx.indentationLvl)}`);
}
}
}
// Using an array here is actually better for the average case than using
// a Set. `seen` will only check for the depth and will never grow too large.
if (ctx.seen.includes(value)) {
let index = 1;
if (ctx.circular === undefined) {
ctx.circular = new SafeMap();
ctx.circular.set(value, index);
} else {
index = ctx.circular.get(value);
if (index === undefined) {
index = ctx.circular.size + 1;
ctx.circular.set(value, index);
}
}
return ctx.stylize(`[Circular *${index}]`, 'special');
}
return formatRaw(ctx, value, recurseTimes, typedArray);
}
function formatRaw(ctx, value, recurseTimes, typedArray) {
let keys;
let protoProps;
if (ctx.showHidden && (recurseTimes <= ctx.depth || ctx.depth === null)) {
protoProps = [];
}
const constructor = getConstructorName(value, ctx, recurseTimes, protoProps);
// Reset the variable to check for this later on.
if (protoProps !== undefined && protoProps.length === 0) {
protoProps = undefined;
}
let tag = value[SymbolToStringTag];
// Only list the tag in case it's non-enumerable / not an own property.
// Otherwise we'd print this twice.
if (typeof tag !== 'string' ||
(tag !== '' &&
(ctx.showHidden ?
ObjectPrototypeHasOwnProperty :
ObjectPrototypePropertyIsEnumerable)(
value, SymbolToStringTag
))) {
tag = '';
}
let base = '';
let formatter = getEmptyFormatArray;
let braces;
let noIterator = true;
let i = 0;
const filter = ctx.showHidden ? ALL_PROPERTIES : ONLY_ENUMERABLE;
let extrasType = kObjectType;
// Iterators and the rest are split to reduce checks.
// We have to check all values in case the constructor is set to null.
// Otherwise it would not possible to identify all types properly.
if (value[SymbolIterator] || constructor === null) {
noIterator = false;
if (ArrayIsArray(value)) {
// Only set the constructor for non ordinary ("Array [...]") arrays.
const prefix = (constructor !== 'Array' || tag !== '') ?
getPrefix(constructor, tag, 'Array', `(${value.length})`) :
'';
keys = getOwnNonIndexProperties(value, filter);
braces = [`${prefix}[`, ']'];
if (value.length === 0 && keys.length === 0 && protoProps === undefined)
return `${braces[0]}]`;
extrasType = kArrayExtrasType;
formatter = formatArray;
} else if (isSet(value)) {
const size = SetPrototypeGetSize(value);
const prefix = getPrefix(constructor, tag, 'Set', `(${size})`);
keys = getKeys(value, ctx.showHidden);
formatter = constructor !== null ?
formatSet.bind(null, value) :
formatSet.bind(null, SetPrototypeValues(value));
if (size === 0 && keys.length === 0 && protoProps === undefined)
return `${prefix}{}`;
braces = [`${prefix}{`, '}'];
} else if (isMap(value)) {
const size = MapPrototypeGetSize(value);
const prefix = getPrefix(constructor, tag, 'Map', `(${size})`);
keys = getKeys(value, ctx.showHidden);
formatter = constructor !== null ?
formatMap.bind(null, value) :
formatMap.bind(null, MapPrototypeEntries(value));
if (size === 0 && keys.length === 0 && protoProps === undefined)
return `${prefix}{}`;
braces = [`${prefix}{`, '}'];
} else if (isTypedArray(value)) {
keys = getOwnNonIndexProperties(value, filter);
let bound = value;
let fallback = '';
if (constructor === null) {
fallback = TypedArrayPrototypeGetSymbolToStringTag(value);
// Reconstruct the array information.
bound = new primordials[fallback](value);
}
const size = TypedArrayPrototypeGetLength(value);
const prefix = getPrefix(constructor, tag, fallback, `(${size})`);
braces = [`${prefix}[`, ']'];
if (value.length === 0 && keys.length === 0 && !ctx.showHidden)
return `${braces[0]}]`;
// Special handle the value. The original value is required below. The
// bound function is required to reconstruct missing information.
formatter = formatTypedArray.bind(null, bound, size);
extrasType = kArrayExtrasType;
} else if (isMapIterator(value)) {
keys = getKeys(value, ctx.showHidden);
braces = getIteratorBraces('Map', tag);
// Add braces to the formatter parameters.
formatter = formatIterator.bind(null, braces);
} else if (isSetIterator(value)) {
keys = getKeys(value, ctx.showHidden);
braces = getIteratorBraces('Set', tag);
// Add braces to the formatter parameters.
formatter = formatIterator.bind(null, braces);
} else {
noIterator = true;
}
}
if (noIterator) {
keys = getKeys(value, ctx.showHidden);
braces = ['{', '}'];
if (constructor === 'Object') {
if (isArgumentsObject(value)) {
braces[0] = '[Arguments] {';
} else if (tag !== '') {
braces[0] = `${getPrefix(constructor, tag, 'Object')}{`;
}
if (keys.length === 0 && protoProps === undefined) {
return `${braces[0]}}`;
}
} else if (typeof value === 'function') {
base = getFunctionBase(value, constructor, tag);
if (keys.length === 0 && protoProps === undefined)
return ctx.stylize(base, 'special');
} else if (isRegExp(value)) {
// Make RegExps say that they are RegExps
base = RegExpPrototypeToString(
constructor !== null ? value : new RegExp(value)
);
const prefix = getPrefix(constructor, tag, 'RegExp');
if (prefix !== 'RegExp ')
base = `${prefix}${base}`;
if ((keys.length === 0 && protoProps === undefined) ||
(recurseTimes > ctx.depth && ctx.depth !== null)) {
return ctx.stylize(base, 'regexp');
}
} else if (isDate(value)) {
// Make dates with properties first say the date
base = NumberIsNaN(DatePrototypeGetTime(value)) ?
DatePrototypeToString(value) :
DatePrototypeToISOString(value);
const prefix = getPrefix(constructor, tag, 'Date');
if (prefix !== 'Date ')
base = `${prefix}${base}`;
if (keys.length === 0 && protoProps === undefined) {
return ctx.stylize(base, 'date');
}
} else if (isError(value)) {
base = formatError(value, constructor, tag, ctx, keys);
if (keys.length === 0 && protoProps === undefined)
return base;
} else if (isAnyArrayBuffer(value)) {
// Fast path for ArrayBuffer and SharedArrayBuffer.
// Can't do the same for DataView because it has a non-primitive
// .buffer property that we need to recurse for.
const arrayType = isArrayBuffer(value) ? 'ArrayBuffer' :
'SharedArrayBuffer';
const prefix = getPrefix(constructor, tag, arrayType);
if (typedArray === undefined) {
formatter = formatArrayBuffer;
} else if (keys.length === 0 && protoProps === undefined) {
return prefix +
`{ byteLength: ${formatNumber(ctx.stylize, value.byteLength, false)} }`;
}
braces[0] = `${prefix}{`;
ArrayPrototypeUnshift(keys, 'byteLength');
} else if (isDataView(value)) {
braces[0] = `${getPrefix(constructor, tag, 'DataView')}{`;
// .buffer goes last, it's not a primitive like the others.
ArrayPrototypeUnshift(keys, 'byteLength', 'byteOffset', 'buffer');
} else if (isPromise(value)) {
braces[0] = `${getPrefix(constructor, tag, 'Promise')}{`;
formatter = formatPromise;
} else if (isWeakSet(value)) {
braces[0] = `${getPrefix(constructor, tag, 'WeakSet')}{`;
formatter = ctx.showHidden ? formatWeakSet : formatWeakCollection;
} else if (isWeakMap(value)) {
braces[0] = `${getPrefix(constructor, tag, 'WeakMap')}{`;
formatter = ctx.showHidden ? formatWeakMap : formatWeakCollection;
} else if (isModuleNamespaceObject(value)) {
braces[0] = `${getPrefix(constructor, tag, 'Module')}{`;
// Special handle keys for namespace objects.
formatter = formatNamespaceObject.bind(null, keys);
} else if (isBoxedPrimitive(value)) {
base = getBoxedBase(value, ctx, keys, constructor, tag);
if (keys.length === 0 && protoProps === undefined) {
return base;
}
} else {
if (keys.length === 0 && protoProps === undefined) {
if (isExternal(value)) {
const address = getExternalValue(value).toString(16);
return ctx.stylize(`[External: ${address}]`, 'special');
}
return `${getCtxStyle(value, constructor, tag)}{}`;
}
braces[0] = `${getCtxStyle(value, constructor, tag)}{`;
}
}
if (recurseTimes > ctx.depth && ctx.depth !== null) {
let constructorName = getCtxStyle(value, constructor, tag).slice(0, -1);
if (constructor !== null)
constructorName = `[${constructorName}]`;
return ctx.stylize(constructorName, 'special');
}
recurseTimes += 1;
ctx.seen.push(value);
ctx.currentDepth = recurseTimes;
let output;
const indentationLvl = ctx.indentationLvl;
try {
output = formatter(ctx, value, recurseTimes);
for (i = 0; i < keys.length; i++) {
output.push(
formatProperty(ctx, value, recurseTimes, keys[i], extrasType));
}
if (protoProps !== undefined) {
output.push(...protoProps);
}
} catch (err) {
const constructorName = getCtxStyle(value, constructor, tag).slice(0, -1);
return handleMaxCallStackSize(ctx, err, constructorName, indentationLvl);
}
if (ctx.circular !== undefined) {
const index = ctx.circular.get(value);
if (index !== undefined) {
const reference = ctx.stylize(`<ref *${index}>`, 'special');
// Add reference always to the very beginning of the output.
if (ctx.compact !== true) {
base = base === '' ? reference : `${reference} ${base}`;
} else {
braces[0] = `${reference} ${braces[0]}`;
}
}
}
ctx.seen.pop();
if (ctx.sorted) {
const comparator = ctx.sorted === true ? undefined : ctx.sorted;
if (extrasType === kObjectType) {
output = output.sort(comparator);
} else if (keys.length > 1) {
const sorted = output.slice(output.length - keys.length).sort(comparator);
output.splice(output.length - keys.length, keys.length, ...sorted);
}
}
const res = reduceToSingleString(
ctx, output, base, braces, extrasType, recurseTimes, value);
const budget = ctx.budget[ctx.indentationLvl] || 0;
const newLength = budget + res.length;
ctx.budget[ctx.indentationLvl] = newLength;
// If any indentationLvl exceeds this limit, limit further inspecting to the
// minimum. Otherwise the recursive algorithm might continue inspecting the
// object even though the maximum string size (~2 ** 28 on 32 bit systems and
// ~2 ** 30 on 64 bit systems) exceeded. The actual output is not limited at
// exactly 2 ** 27 but a bit higher. This depends on the object shape.
// This limit also makes sure that huge objects don't block the event loop
// significantly.
if (newLength > 2 ** 27) {
ctx.depth = -1;
}
return res;
}
function getIteratorBraces(type, tag) {
if (tag !== `${type} Iterator`) {
if (tag !== '')
tag += '] [';
tag += `${type} Iterator`;
}
return [`[${tag}] {`, '}'];
}
function getBoxedBase(value, ctx, keys, constructor, tag) {
let fn;
let type;
if (isNumberObject(value)) {
fn = NumberPrototypeValueOf;
type = 'Number';
} else if (isStringObject(value)) {
fn = StringPrototypeValueOf;
type = 'String';
// For boxed Strings, we have to remove the 0-n indexed entries,
// since they just noisy up the output and are redundant
// Make boxed primitive Strings look like such
keys.splice(0, value.length);
} else if (isBooleanObject(value)) {
fn = BooleanPrototypeValueOf;
type = 'Boolean';
} else if (isBigIntObject(value)) {
fn = BigIntPrototypeValueOf;
type = 'BigInt';
} else {
fn = SymbolPrototypeValueOf;
type = 'Symbol';
}
let base = `[${type}`;
if (type !== constructor) {
if (constructor === null) {
base += ' (null prototype)';
} else {
base += ` (${constructor})`;
}
}
base += `: ${formatPrimitive(stylizeNoColor, fn(value), ctx)}]`;
if (tag !== '' && tag !== constructor) {
base += ` [${tag}]`;
}
if (keys.length !== 0 || ctx.stylize === stylizeNoColor)
return base;
return ctx.stylize(base, StringPrototypeToLowerCase(type));
}
function getClassBase(value, constructor, tag) {
const hasName = ObjectPrototypeHasOwnProperty(value, 'name');
const name = (hasName && value.name) || '(anonymous)';
let base = `class ${name}`;
if (constructor !== 'Function' && constructor !== null) {
base += ` [${constructor}]`;
}
if (tag !== '' && constructor !== tag) {
base += ` [${tag}]`;
}
if (constructor !== null) {
const superName = ObjectGetPrototypeOf(value).name;
if (superName) {
base += ` extends ${superName}`;
}
} else {
base += ' extends [null prototype]';
}
return `[${base}]`;
}
function getFunctionBase(value, constructor, tag) {
const stringified = FunctionPrototypeToString(value);
if (stringified.startsWith('class') && stringified.endsWith('}')) {
const slice = stringified.slice(5, -1);
const bracketIndex = slice.indexOf('{');
if (bracketIndex !== -1 &&
(!slice.slice(0, bracketIndex).includes('(') ||
// Slow path to guarantee that it's indeed a class.
classRegExp.test(slice.replace(stripCommentsRegExp)))) {
return getClassBase(value, constructor, tag);
}
}
let type = 'Function';
if (isGeneratorFunction(value)) {
type = `Generator${type}`;
}
if (isAsyncFunction(value)) {
type = `Async${type}`;
}
let base = `[${type}`;
if (constructor === null) {
base += ' (null prototype)';
}
if (value.name === '') {
base += ' (anonymous)';
} else {
base += `: ${value.name}`;
}
base += ']';
if (constructor !== type && constructor !== null) {
base += ` ${constructor}`;
}
if (tag !== '' && constructor !== tag) {
base += ` [${tag}]`;
}
return base;
}
function identicalSequenceRange(a, b) {
for (let i = 0; i < a.length - 3; i++) {
// Find the first entry of b that matches the current entry of a.
const pos = b.indexOf(a[i]);
if (pos !== -1) {
const rest = b.length - pos;
if (rest > 3) {
let len = 1;
const maxLen = MathMin(a.length - i, rest);
// Count the number of consecutive entries.
while (maxLen > len && a[i + len] === b[pos + len]) {
len++;
}
if (len > 3) {
return { len, offset: i };
}
}
}
}
return { len: 0, offset: 0 };
}
function getStackString(error) {
return error.stack ? String(error.stack) : ErrorPrototypeToString(error);
}
function getStackFrames(ctx, err, stack) {
const frames = stack.split('\n');
// Remove stack frames identical to frames in cause.
if (err.cause && isError(err.cause)) {
const causeStack = getStackString(err.cause);
const causeStackStart = causeStack.indexOf('\n at');
if (causeStackStart !== -1) {
const causeFrames = causeStack.slice(causeStackStart + 1).split('\n');
const { len, offset } = identicalSequenceRange(frames, causeFrames);
if (len > 0) {
const skipped = len - 2;
const msg = ` ... ${skipped} lines matching cause stack trace ...`;
frames.splice(offset + 1, skipped, ctx.stylize(msg, 'undefined'));
}
}
}
return frames;
}
function improveStack(stack, constructor, name, tag) {
// A stack trace may contain arbitrary data. Only manipulate the output
// for "regular errors" (errors that "look normal") for now.
let len = name.length;
if (constructor === null ||
(name.endsWith('Error') &&
stack.startsWith(name) &&
(stack.length === len || stack[len] === ':' || stack[len] === '\n'))) {
let fallback = 'Error';
if (constructor === null) {
const start = stack.match(/^([A-Z][a-z_ A-Z0-9[\]()-]+)(?::|\n {4}at)/) ||
stack.match(/^([a-z_A-Z0-9-]*Error)$/);
fallback = (start && start[1]) || '';
len = fallback.length;
fallback = fallback || 'Error';
}
const prefix = getPrefix(constructor, tag, fallback).slice(0, -1);
if (name !== prefix) {
if (prefix.includes(name)) {
if (len === 0) {
stack = `${prefix}: ${stack}`;
} else {
stack = `${prefix}${stack.slice(len)}`;
}
} else {
stack = `${prefix} [${name}]${stack.slice(len)}`;
}
}
}
return stack;
}
function removeDuplicateErrorKeys(ctx, keys, err, stack) {
if (!ctx.showHidden && keys.length !== 0) {
for (const name of ['name', 'message', 'stack']) {
const index = keys.indexOf(name);
// Only hide the property in case it's part of the original stack
if (index !== -1 && stack.includes(err[name])) {
keys.splice(index, 1);
}
}
}
}
function formatError(err, constructor, tag, ctx, keys) {
const name = err.name != null ? String(err.name) : 'Error';
let stack = getStackString(err);
removeDuplicateErrorKeys(ctx, keys, err, stack);
if ('cause' in err &&
(keys.length === 0 || !keys.includes('cause'))) {
keys.push('cause');
}
stack = improveStack(stack, constructor, name, tag);
// Ignore the error message if it's contained in the stack.
let pos = (err.message && stack.indexOf(err.message)) || -1;
if (pos !== -1)
pos += err.message.length;
// Wrap the error in brackets in case it has no stack trace.
const stackStart = stack.indexOf('\n at', pos);
if (stackStart === -1) {
stack = `[${stack}]`;
} else {
let newStack = stack.slice(0, stackStart);
const lines = getStackFrames(ctx, err, stack.slice(stackStart + 1));
if (ctx.colors) {
// Highlight userland code and node modules.
for (const line of lines) {
const core = line.match(coreModuleRegExp);
if (core !== null && NativeModule.exists(core[1])) {
newStack += `\n${ctx.stylize(line, 'undefined')}`;
} else {
// This adds underscores to all node_modules to quickly identify them.
let nodeModule;
newStack += '\n';
let pos = 0;
while ((nodeModule = nodeModulesRegExp.exec(line)) !== null) {
// '/node_modules/'.length === 14
newStack += line.slice(pos, nodeModule.index + 14);
newStack += ctx.stylize(nodeModule[1], 'module');
pos = nodeModule.index + nodeModule[0].length;
}
newStack += pos === 0 ? line : line.slice(pos);
}
}
} else {
newStack += `\n${lines.join('\n')}`;
}
stack = newStack;
}
// The message and the stack have to be indented as well!
if (ctx.indentationLvl !== 0) {
const indentation = ' '.repeat(ctx.indentationLvl);
stack = stack.replace(/\n/g, `\n${indentation}`);
}
return stack;
}
function groupArrayElements(ctx, output, value) {
let totalLength = 0;
let maxLength = 0;
let i = 0;
let outputLength = output.length;
if (ctx.maxArrayLength < output.length) {
// This makes sure the "... n more items" part is not taken into account.
outputLength--;
}
const separatorSpace = 2; // Add 1 for the space and 1 for the separator.
const dataLen = new Array(outputLength);
// Calculate the total length of all output entries and the individual max
// entries length of all output entries. We have to remove colors first,
// otherwise the length would not be calculated properly.
for (; i < outputLength; i++) {
const len = getStringWidth(output[i], ctx.colors);
dataLen[i] = len;
totalLength += len + separatorSpace;
if (maxLength < len)
maxLength = len;
}
// Add two to `maxLength` as we add a single whitespace character plus a comma
// in-between two entries.
const actualMax = maxLength + separatorSpace;
// Check if at least three entries fit next to each other and prevent grouping
// of arrays that contains entries of very different length (i.e., if a single
// entry is longer than 1/5 of all other entries combined). Otherwise the
// space in-between small entries would be enormous.
if (actualMax * 3 + ctx.indentationLvl < ctx.breakLength &&
(totalLength / actualMax > 5 || maxLength <= 6)) {
const approxCharHeights = 2.5;
const averageBias = MathSqrt(actualMax - totalLength / output.length);
const biasedMax = MathMax(actualMax - 3 - averageBias, 1);
// Dynamically check how many columns seem possible.
const columns = MathMin(
// Ideally a square should be drawn. We expect a character to be about 2.5
// times as high as wide. This is the area formula to calculate a square
// which contains n rectangles of size `actualMax * approxCharHeights`.
// Divide that by `actualMax` to receive the correct number of columns.
// The added bias increases the columns for short entries.
MathRound(
MathSqrt(
approxCharHeights * biasedMax * outputLength
) / biasedMax
),
// Do not exceed the breakLength.
MathFloor((ctx.breakLength - ctx.indentationLvl) / actualMax),
// Limit array grouping for small `compact` modes as the user requested
// minimal grouping.
ctx.compact * 4,
// Limit the columns to a maximum of fifteen.
15
);
// Return with the original output if no grouping should happen.
if (columns <= 1) {
return output;
}
const tmp = [];
const maxLineLength = [];
for (let i = 0; i < columns; i++) {
let lineMaxLength = 0;
for (let j = i; j < output.length; j += columns) {
if (dataLen[j] > lineMaxLength)
lineMaxLength = dataLen[j];
}
lineMaxLength += separatorSpace;
maxLineLength[i] = lineMaxLength;
}
let order = StringPrototypePadStart;
if (value !== undefined) {
for (let i = 0; i < output.length; i++) {
if (typeof value[i] !== 'number' && typeof value[i] !== 'bigint') {
order = StringPrototypePadEnd;
break;
}
}
}
// Each iteration creates a single line of grouped entries.
for (let i = 0; i < outputLength; i += columns) {
// The last lines may contain less entries than columns.
const max = MathMin(i + columns, outputLength);
let str = '';
let j = i;
for (; j < max - 1; j++) {
// Calculate extra color padding in case it's active. This has to be
// done line by line as some lines might contain more colors than
// others.
const padding = maxLineLength[j - i] + output[j].length - dataLen[j];
str += order(`${output[j]}, `, padding, ' ');
}
if (order === StringPrototypePadStart) {
const padding = maxLineLength[j - i] +
output[j].length -
dataLen[j] -
separatorSpace;
str += StringPrototypePadStart(output[j], padding, ' ');
} else {
str += output[j];
}
ArrayPrototypePush(tmp, str);
}
if (ctx.maxArrayLength < output.length) {
ArrayPrototypePush(tmp, output[outputLength]);
}
output = tmp;
}
return output;
}
function handleMaxCallStackSize(ctx, err, constructorName, indentationLvl) {
if (isStackOverflowError(err)) {
ctx.seen.pop();
ctx.indentationLvl = indentationLvl;
return ctx.stylize(
`[${constructorName}: Inspection interrupted ` +
'prematurely. Maximum call stack size exceeded.]',
'special'
);
}
/* c8 ignore next */
assert.fail(err.stack);
}
function addNumericSeparator(integerString) {
let result = '';
let i = integerString.length;
const start = integerString.startsWith('-') ? 1 : 0;
for (; i >= start + 4; i -= 3) {
result = `_${integerString.slice(i - 3, i)}${result}`;
}
return i === integerString.length ?
integerString :
`${integerString.slice(0, i)}${result}`;
}
function addNumericSeparatorEnd(integerString) {
let result = '';
let i = 0;
for (; i < integerString.length - 3; i += 3) {
result += `${integerString.slice(i, i + 3)}_`;
}
return i === 0 ?
integerString :
`${result}${integerString.slice(i)}`;
}
function formatNumber(fn, number, numericSeparator) {
if (!numericSeparator) {
// Format -0 as '-0'. Checking `number === -0` won't distinguish 0 from -0.
if (ObjectIs(number, -0)) {
return fn('-0', 'number');
}
return fn(`${number}`, 'number');
}
const integer = MathTrunc(number);
const string = String(integer);
if (integer === number) {
if (!NumberIsFinite(number) || string.includes('e')) {
return fn(string, 'number');
}
return fn(`${addNumericSeparator(string)}`, 'number');
}
if (NumberIsNaN(number)) {
return fn(string, 'number');
}
return fn(`${
addNumericSeparator(string)
}.${
addNumericSeparatorEnd(String(number).slice(string.length + 1))
}`, 'number');
}
function formatBigInt(fn, bigint, numericSeparator) {
const string = String(bigint);
if (!numericSeparator) {
return fn(`${string}n`, 'bigint');
}
return fn(`${addNumericSeparator(string)}n`, 'bigint');
}
function formatPrimitive(fn, value, ctx) {
if (typeof value === 'string') {
let trailer = '';
if (value.length > ctx.maxStringLength) {
const remaining = value.length - ctx.maxStringLength;
value = value.slice(0, ctx.maxStringLength);
trailer = `... ${remaining} more character${remaining > 1 ? 's' : ''}`;
}
if (ctx.compact !== true &&
// TODO(BridgeAR): Add unicode support. Use the readline getStringWidth
// function.
value.length > kMinLineLength &&
value.length > ctx.breakLength - ctx.indentationLvl - 4) {
return value
.split(/(?<=\n)/)
.map((line) => fn(strEscape(line), 'string'))
.join(` +\n${' '.repeat(ctx.indentationLvl + 2)}`) + trailer;
}
return fn(strEscape(value), 'string') + trailer;
}
if (typeof value === 'number')
return formatNumber(fn, value, ctx.numericSeparator);
if (typeof value === 'bigint')
return formatBigInt(fn, value, ctx.numericSeparator);
if (typeof value === 'boolean')
return fn(`${value}`, 'boolean');
if (typeof value === 'undefined')
return fn('undefined', 'undefined');
// es6 symbol primitive
return fn(SymbolPrototypeToString(value), 'symbol');
}
function formatNamespaceObject(keys, ctx, value, recurseTimes) {
const output = new Array(keys.length);
for (let i = 0; i < keys.length; i++) {
try {
output[i] = formatProperty(ctx, value, recurseTimes, keys[i],
kObjectType);
} catch (err) {
assert(isNativeError(err) && err.name === 'ReferenceError');
// Use the existing functionality. This makes sure the indentation and
// line breaks are always correct. Otherwise it is very difficult to keep
// this aligned, even though this is a hacky way of dealing with this.
const tmp = { [keys[i]]: '' };
output[i] = formatProperty(ctx, tmp, recurseTimes, keys[i], kObjectType);
const pos = output[i].lastIndexOf(' ');
// We have to find the last whitespace and have to replace that value as
// it will be visualized as a regular string.
output[i] = output[i].slice(0, pos + 1) +
ctx.stylize('<uninitialized>', 'special');
}
}
// Reset the keys to an empty array. This prevents duplicated inspection.
keys.length = 0;
return output;
}
// The array is sparse and/or has extra keys
function formatSpecialArray(ctx, value, recurseTimes, maxLength, output, i) {
const keys = ObjectKeys(value);
let index = i;
for (; i < keys.length && output.length < maxLength; i++) {
const key = keys[i];
const tmp = +key;
// Arrays can only have up to 2^32 - 1 entries
if (tmp > 2 ** 32 - 2) {
break;
}
if (`${index}` !== key) {
if (!numberRegExp.test(key)) {
break;
}
const emptyItems = tmp - index;
const ending = emptyItems > 1 ? 's' : '';
const message = `<${emptyItems} empty item${ending}>`;
output.push(ctx.stylize(message, 'undefined'));
index = tmp;
if (output.length === maxLength) {
break;
}
}
output.push(formatProperty(ctx, value, recurseTimes, key, kArrayType));
index++;
}
const remaining = value.length - index;
if (output.length !== maxLength) {
if (remaining > 0) {
const ending = remaining > 1 ? 's' : '';
const message = `<${remaining} empty item${ending}>`;
output.push(ctx.stylize(message, 'undefined'));
}
} else if (remaining > 0) {
output.push(`... ${remaining} more item${remaining > 1 ? 's' : ''}`);
}
return output;
}
function formatArrayBuffer(ctx, value) {
let buffer;
try {
buffer = new Uint8Array(value);
} catch {
return [ctx.stylize('(detached)', 'special')];
}
if (hexSlice === undefined)
hexSlice = uncurryThis(require('buffer').Buffer.prototype.hexSlice);
let str = StringPrototypeTrim(StringPrototypeReplace(
hexSlice(buffer, 0, MathMin(ctx.maxArrayLength, buffer.length)),
/(.{2})/g, '$1 '));
const remaining = buffer.length - ctx.maxArrayLength;
if (remaining > 0)
str += ` ... ${remaining} more byte${remaining > 1 ? 's' : ''}`;
return [`${ctx.stylize('[Uint8Contents]', 'special')}: <${str}>`];
}
function formatArray(ctx, value, recurseTimes) {
const valLen = value.length;
const len = MathMin(MathMax(0, ctx.maxArrayLength), valLen);
const remaining = valLen - len;
const output = [];
for (let i = 0; i < len; i++) {
// Special handle sparse arrays.
if (!ObjectPrototypeHasOwnProperty(value, i)) {
return formatSpecialArray(ctx, value, recurseTimes, len, output, i);
}
output.push(formatProperty(ctx, value, recurseTimes, i, kArrayType));
}
if (remaining > 0)
output.push(`... ${remaining} more item${remaining > 1 ? 's' : ''}`);
return output;
}
function formatTypedArray(value, length, ctx, ignored, recurseTimes) {
const maxLength = MathMin(MathMax(0, ctx.maxArrayLength), length);
const remaining = value.length - maxLength;
const output = new Array(maxLength);
const elementFormatter = value.length > 0 && typeof value[0] === 'number' ?
formatNumber :
formatBigInt;
for (let i = 0; i < maxLength; ++i) {
output[i] = elementFormatter(ctx.stylize, value[i], ctx.numericSeparator);
}
if (remaining > 0) {
output[maxLength] = `... ${remaining} more item${remaining > 1 ? 's' : ''}`;
}
if (ctx.showHidden) {
// .buffer goes last, it's not a primitive like the others.
// All besides `BYTES_PER_ELEMENT` are actually getters.
ctx.indentationLvl += 2;
for (const key of [
'BYTES_PER_ELEMENT',
'length',
'byteLength',
'byteOffset',
'buffer',
]) {
const str = formatValue(ctx, value[key], recurseTimes, true);
ArrayPrototypePush(output, `[${key}]: ${str}`);
}
ctx.indentationLvl -= 2;
}
return output;
}
function formatSet(value, ctx, ignored, recurseTimes) {
const output = [];
ctx.indentationLvl += 2;
for (const v of value) {
ArrayPrototypePush(output, formatValue(ctx, v, recurseTimes));
}
ctx.indentationLvl -= 2;
return output;
}
function formatMap(value, ctx, ignored, recurseTimes) {
const output = [];
ctx.indentationLvl += 2;
for (const { 0: k, 1: v } of value) {
output.push(
`${formatValue(ctx, k, recurseTimes)} => ${formatValue(ctx, v, recurseTimes)}`
);
}
ctx.indentationLvl -= 2;
return output;
}
function formatSetIterInner(ctx, recurseTimes, entries, state) {
const maxArrayLength = MathMax(ctx.maxArrayLength, 0);
const maxLength = MathMin(maxArrayLength, entries.length);
const output = new Array(maxLength);
ctx.indentationLvl += 2;
for (let i = 0; i < maxLength; i++) {
output[i] = formatValue(ctx, entries[i], recurseTimes);
}
ctx.indentationLvl -= 2;
if (state === kWeak && !ctx.sorted) {
// Sort all entries to have a halfway reliable output (if more entries than
// retrieved ones exist, we can not reliably return the same output) if the
// output is not sorted anyway.
ArrayPrototypeSort(output);
}
const remaining = entries.length - maxLength;
if (remaining > 0) {
ArrayPrototypePush(output,
`... ${remaining} more item${remaining > 1 ? 's' : ''}`);
}
return output;
}
function formatMapIterInner(ctx, recurseTimes, entries, state) {
const maxArrayLength = MathMax(ctx.maxArrayLength, 0);
// Entries exist as [key1, val1, key2, val2, ...]
const len = entries.length / 2;
const remaining = len - maxArrayLength;
const maxLength = MathMin(maxArrayLength, len);
let output = new Array(maxLength);
let i = 0;
ctx.indentationLvl += 2;
if (state === kWeak) {
for (; i < maxLength; i++) {
const pos = i * 2;
output[i] =
`${formatValue(ctx, entries[pos], recurseTimes)} => ${formatValue(ctx, entries[pos + 1], recurseTimes)}`;
}
// Sort all entries to have a halfway reliable output (if more entries than
// retrieved ones exist, we can not reliably return the same output) if the
// output is not sorted anyway.
if (!ctx.sorted)
output = output.sort();
} else {
for (; i < maxLength; i++) {
const pos = i * 2;
const res = [
formatValue(ctx, entries[pos], recurseTimes),
formatValue(ctx, entries[pos + 1], recurseTimes),
];
output[i] = reduceToSingleString(
ctx, res, '', ['[', ']'], kArrayExtrasType, recurseTimes);
}
}
ctx.indentationLvl -= 2;
if (remaining > 0) {
output.push(`... ${remaining} more item${remaining > 1 ? 's' : ''}`);
}
return output;
}
function formatWeakCollection(ctx) {
return [ctx.stylize('<items unknown>', 'special')];
}
function formatWeakSet(ctx, value, recurseTimes) {
const entries = previewEntries(value);
return formatSetIterInner(ctx, recurseTimes, entries, kWeak);
}
function formatWeakMap(ctx, value, recurseTimes) {
const entries = previewEntries(value);
return formatMapIterInner(ctx, recurseTimes, entries, kWeak);
}
function formatIterator(braces, ctx, value, recurseTimes) {
const { 0: entries, 1: isKeyValue } = previewEntries(value, true);
if (isKeyValue) {
// Mark entry iterators as such.
braces[0] = braces[0].replace(/ Iterator] {$/, ' Entries] {');
return formatMapIterInner(ctx, recurseTimes, entries, kMapEntries);
}
return formatSetIterInner(ctx, recurseTimes, entries, kIterator);
}
function formatPromise(ctx, value, recurseTimes) {
let output;
const { 0: state, 1: result } = getPromiseDetails(value);
if (state === kPending) {
output = [ctx.stylize('<pending>', 'special')];
} else {
ctx.indentationLvl += 2;
const str = formatValue(ctx, result, recurseTimes);
ctx.indentationLvl -= 2;
output = [
state === kRejected ?
`${ctx.stylize('<rejected>', 'special')} ${str}` :
str,
];
}
return output;
}
function formatProperty(ctx, value, recurseTimes, key, type, desc,
original = value) {
let name, str;
let extra = ' ';
desc = desc || ObjectGetOwnPropertyDescriptor(value, key) ||
{ value: value[key], enumerable: true };
if (desc.value !== undefined) {
const diff = (ctx.compact !== true || type !== kObjectType) ? 2 : 3;
ctx.indentationLvl += diff;
str = formatValue(ctx, desc.value, recurseTimes);
if (diff === 3 && ctx.breakLength < getStringWidth(str, ctx.colors)) {
extra = `\n${' '.repeat(ctx.indentationLvl)}`;
}
ctx.indentationLvl -= diff;
} else if (desc.get !== undefined) {
const label = desc.set !== undefined ? 'Getter/Setter' : 'Getter';
const s = ctx.stylize;
const sp = 'special';
if (ctx.getters && (ctx.getters === true ||
(ctx.getters === 'get' && desc.set === undefined) ||
(ctx.getters === 'set' && desc.set !== undefined))) {
try {
const tmp = FunctionPrototypeCall(desc.get, original);
ctx.indentationLvl += 2;
if (tmp === null) {
str = `${s(`[${label}:`, sp)} ${s('null', 'null')}${s(']', sp)}`;
} else if (typeof tmp === 'object') {
str = `${s(`[${label}]`, sp)} ${formatValue(ctx, tmp, recurseTimes)}`;
} else {
const primitive = formatPrimitive(s, tmp, ctx);
str = `${s(`[${label}:`, sp)} ${primitive}${s(']', sp)}`;
}
ctx.indentationLvl -= 2;
} catch (err) {
const message = `<Inspection threw (${err.message})>`;
str = `${s(`[${label}:`, sp)} ${message}${s(']', sp)}`;
}
} else {
str = ctx.stylize(`[${label}]`, sp);
}
} else if (desc.set !== undefined) {
str = ctx.stylize('[Setter]', 'special');
} else {
str = ctx.stylize('undefined', 'undefined');
}
if (type === kArrayType) {
return str;
}
if (typeof key === 'symbol') {
const tmp = StringPrototypeReplace(
SymbolPrototypeToString(key),
strEscapeSequencesReplacer, escapeFn
);
name = `[${ctx.stylize(tmp, 'symbol')}]`;
} else if (key === '__proto__') {
name = "['__proto__']";
} else if (desc.enumerable === false) {
const tmp = StringPrototypeReplace(key,
strEscapeSequencesReplacer, escapeFn);
name = `[${tmp}]`;
} else if (RegExpPrototypeTest(keyStrRegExp, key)) {
name = ctx.stylize(key, 'name');
} else {
name = ctx.stylize(strEscape(key), 'string');
}
return `${name}:${extra}${str}`;
}
function isBelowBreakLength(ctx, output, start, base) {
// Each entry is separated by at least a comma. Thus, we start with a total
// length of at least `output.length`. In addition, some cases have a
// whitespace in-between each other that is added to the total as well.
// TODO(BridgeAR): Add unicode support. Use the readline getStringWidth
// function. Check the performance overhead and make it an opt-in in case it's
// significant.
let totalLength = output.length + start;
if (totalLength + output.length > ctx.breakLength)
return false;
for (let i = 0; i < output.length; i++) {
if (ctx.colors) {
totalLength += removeColors(output[i]).length;
} else {
totalLength += output[i].length;
}
if (totalLength > ctx.breakLength) {
return false;
}
}
// Do not line up properties on the same line if `base` contains line breaks.
return base === '' || !StringPrototypeIncludes(base, '\n');
}
function reduceToSingleString(
ctx, output, base, braces, extrasType, recurseTimes, value) {
if (ctx.compact !== true) {
if (typeof ctx.compact === 'number' && ctx.compact >= 1) {
// Memorize the original output length. In case the output is grouped,
// prevent lining up the entries on a single line.
const entries = output.length;
// Group array elements together if the array contains at least six
// separate entries.
if (extrasType === kArrayExtrasType && entries > 6) {
output = groupArrayElements(ctx, output, value);
}
// `ctx.currentDepth` is set to the most inner depth of the currently
// inspected object part while `recurseTimes` is the actual current depth
// that is inspected.
//
// Example:
//
// const a = { first: [ 1, 2, 3 ], second: { inner: [ 1, 2, 3 ] } }
//
// The deepest depth of `a` is 2 (a.second.inner) and `a.first` has a max
// depth of 1.
//
// Consolidate all entries of the local most inner depth up to
// `ctx.compact`, as long as the properties are smaller than
// `ctx.breakLength`.
if (ctx.currentDepth - recurseTimes < ctx.compact &&
entries === output.length) {
// Line up all entries on a single line in case the entries do not
// exceed `breakLength`. Add 10 as constant to start next to all other
// factors that may reduce `breakLength`.
const start = output.length + ctx.indentationLvl +
braces[0].length + base.length + 10;
if (isBelowBreakLength(ctx, output, start, base)) {
const joinedOutput = join(output, ', ');
if (!joinedOutput.includes('\n')) {
return `${base ? `${base} ` : ''}${braces[0]} ${joinedOutput}` +
` ${braces[1]}`;
}
}
}
}
// Line up each entry on an individual line.
const indentation = `\n${StringPrototypeRepeat(' ', ctx.indentationLvl)}`;
return `${base ? `${base} ` : ''}${braces[0]}${indentation} ` +
`${join(output, `,${indentation} `)}${indentation}${braces[1]}`;
}
// Line up all entries on a single line in case the entries do not exceed
// `breakLength`.
if (isBelowBreakLength(ctx, output, 0, base)) {
return `${braces[0]}${base ? ` ${base}` : ''} ${join(output, ', ')} ` +
braces[1];
}
const indentation = StringPrototypeRepeat(' ', ctx.indentationLvl);
// If the opening "brace" is too large, like in the case of "Set {",
// we need to force the first item to be on the next line or the
// items will not line up correctly.
const ln = base === '' && braces[0].length === 1 ?
' ' : `${base ? ` ${base}` : ''}\n${indentation} `;
// Line up each entry on an individual line.
return `${braces[0]}${ln}${join(output, `,\n${indentation} `)} ${braces[1]}`;
}
function hasBuiltInToString(value) {
// Prevent triggering proxy traps.
const getFullProxy = false;
const proxyTarget = getProxyDetails(value, getFullProxy);
if (proxyTarget !== undefined) {
value = proxyTarget;
}
// Count objects that have no `toString` function as built-in.
if (typeof value.toString !== 'function') {
return true;
}
// The object has a own `toString` property. Thus it's not not a built-in one.
if (ObjectPrototypeHasOwnProperty(value, 'toString')) {
return false;
}
// Find the object that has the `toString` property as own property in the
// prototype chain.
let pointer = value;
do {
pointer = ObjectGetPrototypeOf(pointer);
} while (!ObjectPrototypeHasOwnProperty(pointer, 'toString'));
// Check closer if the object is a built-in.
const descriptor = ObjectGetOwnPropertyDescriptor(pointer, 'constructor');
return descriptor !== undefined &&
typeof descriptor.value === 'function' &&
builtInObjects.has(descriptor.value.name);
}
const firstErrorLine = (error) =>
StringPrototypeSplit(error.message, '\n', 1)[0];
let CIRCULAR_ERROR_MESSAGE;
function tryStringify(arg) {
try {
return JSONStringify(arg);
} catch (err) {
// Populate the circular error message lazily
if (!CIRCULAR_ERROR_MESSAGE) {
try {
const a = {}; a.a = a; JSONStringify(a);
} catch (circularError) {
CIRCULAR_ERROR_MESSAGE = firstErrorLine(circularError);
}
}
if (err.name === 'TypeError' &&
firstErrorLine(err) === CIRCULAR_ERROR_MESSAGE) {
return '[Circular]';
}
throw err;
}
}
function format(...args) {
return formatWithOptionsInternal(undefined, args);
}
function formatWithOptions(inspectOptions, ...args) {
if (typeof inspectOptions !== 'object' || inspectOptions === null) {
throw new ERR_INVALID_ARG_TYPE(
'inspectOptions', 'object', inspectOptions);
}
return formatWithOptionsInternal(inspectOptions, args);
}
function formatNumberNoColor(number, options) {
return formatNumber(
stylizeNoColor,
number,
options?.numericSeparator ?? inspectDefaultOptions.numericSeparator
);
}
function formatBigIntNoColor(bigint, options) {
return formatBigInt(
stylizeNoColor,
bigint,
options?.numericSeparator ?? inspectDefaultOptions.numericSeparator
);
}
function formatWithOptionsInternal(inspectOptions, args) {
const first = args[0];
let a = 0;
let str = '';
let join = '';
if (typeof first === 'string') {
if (args.length === 1) {
return first;
}
let tempStr;
let lastPos = 0;
for (let i = 0; i < first.length - 1; i++) {
if (StringPrototypeCharCodeAt(first, i) === 37) { // '%'
const nextChar = StringPrototypeCharCodeAt(first, ++i);
if (a + 1 !== args.length) {
switch (nextChar) {
case 115: { // 's'
const tempArg = args[++a];
if (typeof tempArg === 'number') {
tempStr = formatNumberNoColor(tempArg, inspectOptions);
} else if (typeof tempArg === 'bigint') {
tempStr = formatBigIntNoColor(tempArg, inspectOptions);
} else if (typeof tempArg !== 'object' ||
tempArg === null ||
!hasBuiltInToString(tempArg)) {
tempStr = String(tempArg);
} else {
tempStr = inspect(tempArg, {
...inspectOptions,
compact: 3,
colors: false,
depth: 0
});
}
break;
}
case 106: // 'j'
tempStr = tryStringify(args[++a]);
break;
case 100: { // 'd'
const tempNum = args[++a];
if (typeof tempNum === 'bigint') {
tempStr = formatBigIntNoColor(tempNum, inspectOptions);
} else if (typeof tempNum === 'symbol') {
tempStr = 'NaN';
} else {
tempStr = formatNumberNoColor(Number(tempNum), inspectOptions);
}
break;
}
case 79: // 'O'
tempStr = inspect(args[++a], inspectOptions);
break;
case 111: // 'o'
tempStr = inspect(args[++a], {
...inspectOptions,
showHidden: true,
showProxy: true,
depth: 4
});
break;
case 105: { // 'i'
const tempInteger = args[++a];
if (typeof tempInteger === 'bigint') {
tempStr = formatBigIntNoColor(tempInteger, inspectOptions);
} else if (typeof tempInteger === 'symbol') {
tempStr = 'NaN';
} else {
tempStr = formatNumberNoColor(
NumberParseInt(tempInteger), inspectOptions);
}
break;
}
case 102: { // 'f'
const tempFloat = args[++a];
if (typeof tempFloat === 'symbol') {
tempStr = 'NaN';
} else {
tempStr = formatNumberNoColor(
NumberParseFloat(tempFloat), inspectOptions);
}
break;
}
case 99: // 'c'
a += 1;
tempStr = '';
break;
case 37: // '%'
str += StringPrototypeSlice(first, lastPos, i);
lastPos = i + 1;
continue;
default: // Any other character is not a correct placeholder
continue;
}
if (lastPos !== i - 1) {
str += StringPrototypeSlice(first, lastPos, i - 1);
}
str += tempStr;
lastPos = i + 1;
} else if (nextChar === 37) {
str += StringPrototypeSlice(first, lastPos, i);
lastPos = i + 1;
}
}
}
if (lastPos !== 0) {
a++;
join = ' ';
if (lastPos < first.length) {
str += StringPrototypeSlice(first, lastPos);
}
}
}
while (a < args.length) {
const value = args[a];
str += join;
str += typeof value !== 'string' ? inspect(value, inspectOptions) : value;
join = ' ';
a++;
}
return str;
}
if (internalBinding('config').hasIntl) {
const icu = internalBinding('icu');
// icu.getStringWidth(string, ambiguousAsFullWidth, expandEmojiSequence)
// Defaults: ambiguousAsFullWidth = false; expandEmojiSequence = true;
// TODO(BridgeAR): Expose the options to the user. That is probably the
// best thing possible at the moment, since it's difficult to know what
// the receiving end supports.
getStringWidth = function getStringWidth(str, removeControlChars = true) {
let width = 0;
if (removeControlChars)
str = stripVTControlCharacters(str);
for (let i = 0; i < str.length; i++) {
// Try to avoid calling into C++ by first handling the ASCII portion of
// the string. If it is fully ASCII, we skip the C++ part.
const code = str.charCodeAt(i);
if (code >= 127) {
width += icu.getStringWidth(str.slice(i).normalize('NFC'));
break;
}
width += code >= 32 ? 1 : 0;
}
return width;
};
} else {
/**
* Returns the number of columns required to display the given string.
*/
getStringWidth = function getStringWidth(str, removeControlChars = true) {
let width = 0;
if (removeControlChars)
str = stripVTControlCharacters(str);
str = StringPrototypeNormalize(str, 'NFC');
for (const char of new SafeStringIterator(str)) {
const code = StringPrototypeCodePointAt(char, 0);
if (isFullWidthCodePoint(code)) {
width += 2;
} else if (!isZeroWidthCodePoint(code)) {
width++;
}
}
return width;
};
/**
* Returns true if the character represented by a given
* Unicode code point is full-width. Otherwise returns false.
*/
const isFullWidthCodePoint = (code) => {
// Code points are partially derived from:
// https://www.unicode.org/Public/UNIDATA/EastAsianWidth.txt
return code >= 0x1100 && (
code <= 0x115f || // Hangul Jamo
code === 0x2329 || // LEFT-POINTING ANGLE BRACKET
code === 0x232a || // RIGHT-POINTING ANGLE BRACKET
// CJK Radicals Supplement .. Enclosed CJK Letters and Months
(code >= 0x2e80 && code <= 0x3247 && code !== 0x303f) ||
// Enclosed CJK Letters and Months .. CJK Unified Ideographs Extension A
(code >= 0x3250 && code <= 0x4dbf) ||
// CJK Unified Ideographs .. Yi Radicals
(code >= 0x4e00 && code <= 0xa4c6) ||
// Hangul Jamo Extended-A
(code >= 0xa960 && code <= 0xa97c) ||
// Hangul Syllables
(code >= 0xac00 && code <= 0xd7a3) ||
// CJK Compatibility Ideographs
(code >= 0xf900 && code <= 0xfaff) ||
// Vertical Forms
(code >= 0xfe10 && code <= 0xfe19) ||
// CJK Compatibility Forms .. Small Form Variants
(code >= 0xfe30 && code <= 0xfe6b) ||
// Halfwidth and Fullwidth Forms
(code >= 0xff01 && code <= 0xff60) ||
(code >= 0xffe0 && code <= 0xffe6) ||
// Kana Supplement
(code >= 0x1b000 && code <= 0x1b001) ||
// Enclosed Ideographic Supplement
(code >= 0x1f200 && code <= 0x1f251) ||
// Miscellaneous Symbols and Pictographs 0x1f300 - 0x1f5ff
// Emoticons 0x1f600 - 0x1f64f
(code >= 0x1f300 && code <= 0x1f64f) ||
// CJK Unified Ideographs Extension B .. Tertiary Ideographic Plane
(code >= 0x20000 && code <= 0x3fffd)
);
};
const isZeroWidthCodePoint = (code) => {
return code <= 0x1F || // C0 control codes
(code >= 0x7F && code <= 0x9F) || // C1 control codes
(code >= 0x300 && code <= 0x36F) || // Combining Diacritical Marks
(code >= 0x200B && code <= 0x200F) || // Modifying Invisible Characters
// Combining Diacritical Marks for Symbols
(code >= 0x20D0 && code <= 0x20FF) ||
(code >= 0xFE00 && code <= 0xFE0F) || // Variation Selectors
(code >= 0xFE20 && code <= 0xFE2F) || // Combining Half Marks
(code >= 0xE0100 && code <= 0xE01EF); // Variation Selectors
};
}
/**
* Remove all VT control characters. Use to estimate displayed string width.
*/
function stripVTControlCharacters(str) {
validateString(str, 'str');
return str.replace(ansi, '');
}
module.exports = {
inspect,
format,
formatWithOptions,
getStringWidth,
inspectDefaultOptions,
stripVTControlCharacters
};
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