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denoland-deno/cli/js/web/console.ts
2020-03-30 19:01:19 -04:00

971 lines
26 KiB
TypeScript

// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { isTypedArray, TypedArray } from "./util.ts";
import { TextEncoder } from "./text_encoding.ts";
import { File, stdout } from "../files.ts";
import { cliTable } from "./console_table.ts";
import { exposeForTest } from "../internals.ts";
import { PromiseState } from "./promise.ts";
type ConsoleContext = Set<unknown>;
type InspectOptions = Partial<{
showHidden: boolean;
depth: number;
colors: boolean;
indentLevel: number;
}>;
const DEFAULT_MAX_DEPTH = 4; // Default depth of logging nested objects
const LINE_BREAKING_LENGTH = 80;
const MAX_ITERABLE_LENGTH = 100;
const MIN_GROUP_LENGTH = 6;
const STR_ABBREVIATE_SIZE = 100;
// Char codes
const CHAR_PERCENT = 37; /* % */
const CHAR_LOWERCASE_S = 115; /* s */
const CHAR_LOWERCASE_D = 100; /* d */
const CHAR_LOWERCASE_I = 105; /* i */
const CHAR_LOWERCASE_F = 102; /* f */
const CHAR_LOWERCASE_O = 111; /* o */
const CHAR_UPPERCASE_O = 79; /* O */
const CHAR_LOWERCASE_C = 99; /* c */
const PROMISE_STRING_BASE_LENGTH = 12;
export class CSI {
static kClear = "\x1b[1;1H";
static kClearScreenDown = "\x1b[0J";
}
/* eslint-disable @typescript-eslint/no-use-before-define */
function cursorTo(stream: File, _x: number, _y?: number): void {
const uint8 = new TextEncoder().encode(CSI.kClear);
stream.writeSync(uint8);
}
function clearScreenDown(stream: File): void {
const uint8 = new TextEncoder().encode(CSI.kClearScreenDown);
stream.writeSync(uint8);
}
function getClassInstanceName(instance: unknown): string {
if (typeof instance !== "object") {
return "";
}
if (!instance) {
return "";
}
const proto = Object.getPrototypeOf(instance);
if (proto && proto.constructor) {
return proto.constructor.name; // could be "Object" or "Array"
}
return "";
}
function createFunctionString(value: Function, _ctx: ConsoleContext): string {
// Might be Function/AsyncFunction/GeneratorFunction
const cstrName = Object.getPrototypeOf(value).constructor.name;
if (value.name && value.name !== "anonymous") {
// from MDN spec
return `[${cstrName}: ${value.name}]`;
}
return `[${cstrName}]`;
}
interface IterablePrintConfig<T> {
typeName: string;
displayName: string;
delims: [string, string];
entryHandler: (
entry: [unknown, T],
ctx: ConsoleContext,
level: number,
maxLevel: number,
next: () => IteratorResult<[unknown, T], unknown>
) => string;
group: boolean;
}
type IterableEntries<T> = Iterable<T> & {
entries(): IterableIterator<[unknown, T]>;
};
function createIterableString<T>(
value: IterableEntries<T>,
ctx: ConsoleContext,
level: number,
maxLevel: number,
config: IterablePrintConfig<T>
): string {
if (level >= maxLevel) {
return `[${config.typeName}]`;
}
ctx.add(value);
const entries: string[] = [];
const iter = value.entries();
let entriesLength = 0;
const next = (): IteratorResult<[unknown, T], unknown> => {
return iter.next();
};
for (const el of iter) {
if (entriesLength < MAX_ITERABLE_LENGTH) {
entries.push(
config.entryHandler(el, ctx, level + 1, maxLevel, next.bind(iter))
);
}
entriesLength++;
}
ctx.delete(value);
if (entriesLength > MAX_ITERABLE_LENGTH) {
const nmore = entriesLength - MAX_ITERABLE_LENGTH;
entries.push(`... ${nmore} more items`);
}
const iPrefix = `${config.displayName ? config.displayName + " " : ""}`;
let iContent: string;
if (config.group && entries.length > MIN_GROUP_LENGTH) {
const groups = groupEntries(entries, level, value);
const initIndentation = `\n${" ".repeat(level + 1)}`;
const entryIndetation = `,\n${" ".repeat(level + 1)}`;
const closingIndentation = `\n${" ".repeat(level)}`;
iContent = `${initIndentation}${groups.join(
entryIndetation
)}${closingIndentation}`;
} else {
iContent = entries.length === 0 ? "" : ` ${entries.join(", ")} `;
if (iContent.length > LINE_BREAKING_LENGTH) {
const initIndentation = `\n${" ".repeat(level + 1)}`;
const entryIndetation = `,\n${" ".repeat(level + 1)}`;
const closingIndentation = `\n`;
iContent = `${initIndentation}${entries.join(
entryIndetation
)}${closingIndentation}`;
}
}
return `${iPrefix}${config.delims[0]}${iContent}${config.delims[1]}`;
}
// Ported from Node.js
// Copyright Node.js contributors. All rights reserved.
function groupEntries<T>(
entries: string[],
level: number,
value: Iterable<T>
): string[] {
let totalLength = 0;
let maxLength = 0;
let entriesLength = entries.length;
if (MAX_ITERABLE_LENGTH < entriesLength) {
// This makes sure the "... n more items" part is not taken into account.
entriesLength--;
}
const separatorSpace = 2; // Add 1 for the space and 1 for the separator.
const dataLen = new Array(entriesLength);
// Calculate the total length of all output entries and the individual max
// entries length of all output entries. In future colors should be taken
// here into the account
for (let i = 0; i < entriesLength; i++) {
const len = entries[i].length;
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 + (level + 1) < LINE_BREAKING_LENGTH &&
(totalLength / actualMax > 5 || maxLength <= 6)
) {
const approxCharHeights = 2.5;
const averageBias = Math.sqrt(actualMax - totalLength / entries.length);
const biasedMax = Math.max(actualMax - 3 - averageBias, 1);
// Dynamically check how many columns seem possible.
const columns = Math.min(
// 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.
Math.round(
Math.sqrt(approxCharHeights * biasedMax * entriesLength) / biasedMax
),
// Do not exceed the breakLength.
Math.floor((LINE_BREAKING_LENGTH - (level + 1)) / actualMax),
// Limit the columns to a maximum of fifteen.
15
);
// Return with the original output if no grouping should happen.
if (columns <= 1) {
return entries;
}
const tmp = [];
const maxLineLength = [];
for (let i = 0; i < columns; i++) {
let lineMaxLength = 0;
for (let j = i; j < entries.length; j += columns) {
if (dataLen[j] > lineMaxLength) lineMaxLength = dataLen[j];
}
lineMaxLength += separatorSpace;
maxLineLength[i] = lineMaxLength;
}
let order = "padStart";
if (value !== undefined) {
for (let i = 0; i < entries.length; i++) {
//@ts-ignore
if (typeof value[i] !== "number" && typeof value[i] !== "bigint") {
order = "padEnd";
break;
}
}
}
// Each iteration creates a single line of grouped entries.
for (let i = 0; i < entriesLength; i += columns) {
// The last lines may contain less entries than columns.
const max = Math.min(i + columns, entriesLength);
let str = "";
let j = i;
for (; j < max - 1; j++) {
// In future, colors should be taken here into the account
const padding = maxLineLength[j - i];
//@ts-ignore
str += `${entries[j]}, `[order](padding, " ");
}
if (order === "padStart") {
const padding =
maxLineLength[j - i] +
entries[j].length -
dataLen[j] -
separatorSpace;
str += entries[j].padStart(padding, " ");
} else {
str += entries[j];
}
tmp.push(str);
}
if (MAX_ITERABLE_LENGTH < entries.length) {
tmp.push(entries[entriesLength]);
}
entries = tmp;
}
return entries;
}
function stringify(
value: unknown,
ctx: ConsoleContext,
level: number,
maxLevel: number
): string {
switch (typeof value) {
case "string":
return value;
case "number":
// Special handling of -0
return Object.is(value, -0) ? "-0" : `${value}`;
case "boolean":
case "undefined":
case "symbol":
return String(value);
case "bigint":
return `${value}n`;
case "function":
return createFunctionString(value as Function, ctx);
case "object":
if (value === null) {
return "null";
}
if (ctx.has(value)) {
return "[Circular]";
}
return createObjectString(value, ctx, level, maxLevel);
default:
return "[Not Implemented]";
}
}
// Print strings when they are inside of arrays or objects with quotes
function stringifyWithQuotes(
value: unknown,
ctx: ConsoleContext,
level: number,
maxLevel: number
): string {
switch (typeof value) {
case "string":
const trunc =
value.length > STR_ABBREVIATE_SIZE
? value.slice(0, STR_ABBREVIATE_SIZE) + "..."
: value;
return JSON.stringify(trunc);
default:
return stringify(value, ctx, level, maxLevel);
}
}
function createArrayString(
value: unknown[],
ctx: ConsoleContext,
level: number,
maxLevel: number
): string {
const printConfig: IterablePrintConfig<unknown> = {
typeName: "Array",
displayName: "",
delims: ["[", "]"],
entryHandler: (entry, ctx, level, maxLevel, next): string => {
const [index, val] = entry as [number, unknown];
let i = index;
if (!value.hasOwnProperty(i)) {
i++;
while (!value.hasOwnProperty(i) && i < value.length) {
next();
i++;
}
const emptyItems = i - index;
const ending = emptyItems > 1 ? "s" : "";
return `<${emptyItems} empty item${ending}>`;
} else {
return stringifyWithQuotes(val, ctx, level + 1, maxLevel);
}
},
group: true,
};
return createIterableString(value, ctx, level, maxLevel, printConfig);
}
function createTypedArrayString(
typedArrayName: string,
value: TypedArray,
ctx: ConsoleContext,
level: number,
maxLevel: number
): string {
const valueLength = value.length;
const printConfig: IterablePrintConfig<unknown> = {
typeName: typedArrayName,
displayName: `${typedArrayName}(${valueLength})`,
delims: ["[", "]"],
entryHandler: (entry, ctx, level, maxLevel): string => {
const [_, val] = entry;
return stringifyWithQuotes(val, ctx, level + 1, maxLevel);
},
group: true,
};
return createIterableString(value, ctx, level, maxLevel, printConfig);
}
function createSetString(
value: Set<unknown>,
ctx: ConsoleContext,
level: number,
maxLevel: number
): string {
const printConfig: IterablePrintConfig<unknown> = {
typeName: "Set",
displayName: "Set",
delims: ["{", "}"],
entryHandler: (entry, ctx, level, maxLevel): string => {
const [_, val] = entry;
return stringifyWithQuotes(val, ctx, level + 1, maxLevel);
},
group: false,
};
return createIterableString(value, ctx, level, maxLevel, printConfig);
}
function createMapString(
value: Map<unknown, unknown>,
ctx: ConsoleContext,
level: number,
maxLevel: number
): string {
const printConfig: IterablePrintConfig<[unknown]> = {
typeName: "Map",
displayName: "Map",
delims: ["{", "}"],
entryHandler: (entry, ctx, level, maxLevel): string => {
const [key, val] = entry;
return `${stringifyWithQuotes(
key,
ctx,
level + 1,
maxLevel
)} => ${stringifyWithQuotes(val, ctx, level + 1, maxLevel)}`;
},
group: false,
};
//@ts-ignore
return createIterableString(value, ctx, level, maxLevel, printConfig);
}
function createWeakSetString(): string {
return "WeakSet { [items unknown] }"; // as seen in Node
}
function createWeakMapString(): string {
return "WeakMap { [items unknown] }"; // as seen in Node
}
function createDateString(value: Date): string {
// without quotes, ISO format
return value.toISOString();
}
function createRegExpString(value: RegExp): string {
return value.toString();
}
/* eslint-disable @typescript-eslint/ban-types */
function createStringWrapperString(value: String): string {
return `[String: "${value.toString()}"]`;
}
function createBooleanWrapperString(value: Boolean): string {
return `[Boolean: ${value.toString()}]`;
}
function createNumberWrapperString(value: Number): string {
return `[Number: ${value.toString()}]`;
}
/* eslint-enable @typescript-eslint/ban-types */
function createPromiseString(
value: Promise<unknown>,
ctx: ConsoleContext,
level: number,
maxLevel: number
): string {
const [state, result] = Deno.core.getPromiseDetails(value);
if (state === PromiseState.Pending) {
return "Promise { <pending> }";
}
const prefix = state === PromiseState.Fulfilled ? "" : "<rejected> ";
const str = `${prefix}${stringifyWithQuotes(
result,
ctx,
level + 1,
maxLevel
)}`;
if (str.length + PROMISE_STRING_BASE_LENGTH > LINE_BREAKING_LENGTH) {
return `Promise {\n${" ".repeat(level + 1)}${str}\n}`;
}
return `Promise { ${str} }`;
}
// TODO: Proxy
function createRawObjectString(
value: { [key: string]: unknown },
ctx: ConsoleContext,
level: number,
maxLevel: number
): string {
if (level >= maxLevel) {
return "[Object]";
}
ctx.add(value);
let baseString = "";
let shouldShowDisplayName = false;
// @ts-ignore
let displayName = value[Symbol.toStringTag];
if (!displayName) {
displayName = getClassInstanceName(value);
}
if (displayName && displayName !== "Object" && displayName !== "anonymous") {
shouldShowDisplayName = true;
}
const entries: string[] = [];
const stringKeys = Object.keys(value);
const symbolKeys = Object.getOwnPropertySymbols(value);
for (const key of stringKeys) {
entries.push(
`${key}: ${stringifyWithQuotes(value[key], ctx, level + 1, maxLevel)}`
);
}
for (const key of symbolKeys) {
entries.push(
`${key.toString()}: ${stringifyWithQuotes(
// @ts-ignore
value[key],
ctx,
level + 1,
maxLevel
)}`
);
}
const totalLength = entries.length + level + entries.join("").length;
ctx.delete(value);
if (entries.length === 0) {
baseString = "{}";
} else if (totalLength > LINE_BREAKING_LENGTH) {
const entryIndent = " ".repeat(level + 1);
const closingIndent = " ".repeat(level);
baseString = `{\n${entryIndent}${entries.join(
`,\n${entryIndent}`
)}\n${closingIndent}}`;
} else {
baseString = `{ ${entries.join(", ")} }`;
}
if (shouldShowDisplayName) {
baseString = `${displayName} ${baseString}`;
}
return baseString;
}
function createObjectString(
value: {},
...args: [ConsoleContext, number, number]
): string {
if (customInspect in value && typeof value[customInspect] === "function") {
try {
return String(value[customInspect]!());
} catch {}
}
if (value instanceof Error) {
return String(value.stack);
} else if (Array.isArray(value)) {
return createArrayString(value, ...args);
} else if (value instanceof Number) {
return createNumberWrapperString(value);
} else if (value instanceof Boolean) {
return createBooleanWrapperString(value);
} else if (value instanceof String) {
return createStringWrapperString(value);
} else if (value instanceof Promise) {
return createPromiseString(value, ...args);
} else if (value instanceof RegExp) {
return createRegExpString(value);
} else if (value instanceof Date) {
return createDateString(value);
} else if (value instanceof Set) {
return createSetString(value, ...args);
} else if (value instanceof Map) {
return createMapString(value, ...args);
} else if (value instanceof WeakSet) {
return createWeakSetString();
} else if (value instanceof WeakMap) {
return createWeakMapString();
} else if (isTypedArray(value)) {
return createTypedArrayString(
Object.getPrototypeOf(value).constructor.name,
value,
...args
);
} else {
// Otherwise, default object formatting
return createRawObjectString(value, ...args);
}
}
export function stringifyArgs(
args: unknown[],
{ depth = DEFAULT_MAX_DEPTH, indentLevel = 0 }: InspectOptions = {}
): string {
const first = args[0];
let a = 0;
let str = "";
let join = "";
if (typeof first === "string") {
let tempStr: string;
let lastPos = 0;
for (let i = 0; i < first.length - 1; i++) {
if (first.charCodeAt(i) === CHAR_PERCENT) {
const nextChar = first.charCodeAt(++i);
if (a + 1 !== args.length) {
switch (nextChar) {
case CHAR_LOWERCASE_S:
// format as a string
tempStr = String(args[++a]);
break;
case CHAR_LOWERCASE_D:
case CHAR_LOWERCASE_I:
// format as an integer
const tempInteger = args[++a];
if (typeof tempInteger === "bigint") {
tempStr = `${tempInteger}n`;
} else if (typeof tempInteger === "symbol") {
tempStr = "NaN";
} else {
tempStr = `${parseInt(String(tempInteger), 10)}`;
}
break;
case CHAR_LOWERCASE_F:
// format as a floating point value
const tempFloat = args[++a];
if (typeof tempFloat === "symbol") {
tempStr = "NaN";
} else {
tempStr = `${parseFloat(String(tempFloat))}`;
}
break;
case CHAR_LOWERCASE_O:
case CHAR_UPPERCASE_O:
// format as an object
tempStr = stringify(args[++a], new Set<unknown>(), 0, depth);
break;
case CHAR_PERCENT:
str += first.slice(lastPos, i);
lastPos = i + 1;
continue;
case CHAR_LOWERCASE_C:
// TODO: applies CSS style rules to the output string as specified
continue;
default:
// any other character is not a correct placeholder
continue;
}
if (lastPos !== i - 1) {
str += first.slice(lastPos, i - 1);
}
str += tempStr;
lastPos = i + 1;
} else if (nextChar === CHAR_PERCENT) {
str += first.slice(lastPos, i);
lastPos = i + 1;
}
}
}
if (lastPos !== 0) {
a++;
join = " ";
if (lastPos < first.length) {
str += first.slice(lastPos);
}
}
}
while (a < args.length) {
const value = args[a];
str += join;
if (typeof value === "string") {
str += value;
} else {
// use default maximum depth for null or undefined argument
str += stringify(value, new Set<unknown>(), 0, depth);
}
join = " ";
a++;
}
if (indentLevel > 0) {
const groupIndent = " ".repeat(indentLevel);
if (str.indexOf("\n") !== -1) {
str = str.replace(/\n/g, `\n${groupIndent}`);
}
str = groupIndent + str;
}
return str;
}
type PrintFunc = (x: string, isErr?: boolean) => void;
const countMap = new Map<string, number>();
const timerMap = new Map<string, number>();
const isConsoleInstance = Symbol("isConsoleInstance");
export class Console {
#printFunc: PrintFunc;
indentLevel: number;
[isConsoleInstance] = false;
constructor(printFunc: PrintFunc) {
this.#printFunc = printFunc;
this.indentLevel = 0;
this[isConsoleInstance] = true;
// ref https://console.spec.whatwg.org/#console-namespace
// For historical web-compatibility reasons, the namespace object for
// console must have as its [[Prototype]] an empty object, created as if
// by ObjectCreate(%ObjectPrototype%), instead of %ObjectPrototype%.
const console = Object.create({}) as Console;
Object.assign(console, this);
return console;
}
log = (...args: unknown[]): void => {
this.#printFunc(
stringifyArgs(args, {
indentLevel: this.indentLevel,
}) + "\n",
false
);
};
debug = this.log;
info = this.log;
dir = (obj: unknown, options: InspectOptions = {}): void => {
this.#printFunc(stringifyArgs([obj], options) + "\n", false);
};
dirxml = this.dir;
warn = (...args: unknown[]): void => {
this.#printFunc(
stringifyArgs(args, {
indentLevel: this.indentLevel,
}) + "\n",
true
);
};
error = this.warn;
assert = (condition = false, ...args: unknown[]): void => {
if (condition) {
return;
}
if (args.length === 0) {
this.error("Assertion failed");
return;
}
const [first, ...rest] = args;
if (typeof first === "string") {
this.error(`Assertion failed: ${first}`, ...rest);
return;
}
this.error(`Assertion failed:`, ...args);
};
count = (label = "default"): void => {
label = String(label);
if (countMap.has(label)) {
const current = countMap.get(label) || 0;
countMap.set(label, current + 1);
} else {
countMap.set(label, 1);
}
this.info(`${label}: ${countMap.get(label)}`);
};
countReset = (label = "default"): void => {
label = String(label);
if (countMap.has(label)) {
countMap.set(label, 0);
} else {
this.warn(`Count for '${label}' does not exist`);
}
};
table = (data: unknown, properties?: string[]): void => {
if (properties !== undefined && !Array.isArray(properties)) {
throw new Error(
"The 'properties' argument must be of type Array. " +
"Received type string"
);
}
if (data === null || typeof data !== "object") {
return this.log(data);
}
const objectValues: { [key: string]: string[] } = {};
const indexKeys: string[] = [];
const values: string[] = [];
const stringifyValue = (value: unknown): string =>
stringifyWithQuotes(value, new Set<unknown>(), 0, 1);
const toTable = (header: string[], body: string[][]): void =>
this.log(cliTable(header, body));
const createColumn = (value: unknown, shift?: number): string[] => [
...(shift ? [...new Array(shift)].map((): string => "") : []),
stringifyValue(value),
];
// eslint-disable-next-line @typescript-eslint/no-explicit-any
let resultData: any;
const isSet = data instanceof Set;
const isMap = data instanceof Map;
const valuesKey = "Values";
const indexKey = isSet || isMap ? "(iteration index)" : "(index)";
if (data instanceof Set) {
resultData = [...data];
} else if (data instanceof Map) {
let idx = 0;
resultData = {};
data.forEach((v: unknown, k: unknown): void => {
resultData[idx] = { Key: k, Values: v };
idx++;
});
} else {
resultData = data!;
}
Object.keys(resultData).forEach((k, idx): void => {
const value: unknown = resultData[k]!;
if (value !== null && typeof value === "object") {
Object.entries(value as { [key: string]: unknown }).forEach(
([k, v]): void => {
if (properties && !properties.includes(k)) {
return;
}
if (objectValues[k]) {
objectValues[k].push(stringifyValue(v));
} else {
objectValues[k] = createColumn(v, idx);
}
}
);
values.push("");
} else {
values.push(stringifyValue(value));
}
indexKeys.push(k);
});
const headerKeys = Object.keys(objectValues);
const bodyValues = Object.values(objectValues);
const header = [
indexKey,
...(properties || [
...headerKeys,
!isMap && values.length > 0 && valuesKey,
]),
].filter(Boolean) as string[];
const body = [indexKeys, ...bodyValues, values];
toTable(header, body);
};
time = (label = "default"): void => {
label = String(label);
if (timerMap.has(label)) {
this.warn(`Timer '${label}' already exists`);
return;
}
timerMap.set(label, Date.now());
};
timeLog = (label = "default", ...args: unknown[]): void => {
label = String(label);
if (!timerMap.has(label)) {
this.warn(`Timer '${label}' does not exists`);
return;
}
const startTime = timerMap.get(label) as number;
const duration = Date.now() - startTime;
this.info(`${label}: ${duration}ms`, ...args);
};
timeEnd = (label = "default"): void => {
label = String(label);
if (!timerMap.has(label)) {
this.warn(`Timer '${label}' does not exists`);
return;
}
const startTime = timerMap.get(label) as number;
timerMap.delete(label);
const duration = Date.now() - startTime;
this.info(`${label}: ${duration}ms`);
};
group = (...label: unknown[]): void => {
if (label.length > 0) {
this.log(...label);
}
this.indentLevel += 2;
};
groupCollapsed = this.group;
groupEnd = (): void => {
if (this.indentLevel > 0) {
this.indentLevel -= 2;
}
};
clear = (): void => {
this.indentLevel = 0;
cursorTo(stdout, 0, 0);
clearScreenDown(stdout);
};
trace = (...args: unknown[]): void => {
const message = stringifyArgs(args, { indentLevel: 0 });
const err = {
name: "Trace",
message,
};
// @ts-ignore
Error.captureStackTrace(err, this.trace);
this.error((err as Error).stack);
};
static [Symbol.hasInstance](instance: Console): boolean {
return instance[isConsoleInstance];
}
}
export const customInspect = Symbol.for("Deno.customInspect");
export function inspect(
value: unknown,
{ depth = DEFAULT_MAX_DEPTH }: InspectOptions = {}
): string {
if (typeof value === "string") {
return value;
} else {
return stringify(value, new Set<unknown>(), 0, depth);
}
}
// Expose these fields to internalObject for tests.
exposeForTest("Console", Console);
exposeForTest("stringifyArgs", stringifyArgs);