1 files changed, 293 insertions, 0 deletions
diff --git a/ext/node/polyfills/util.ts b/ext/node/polyfills/util.ts
new file mode 100644
index 000000000..32dfcae74
--- /dev/null
+++ b/ext/node/polyfills/util.ts
@@ -0,0 +1,293 @@
+// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
+import { promisify } from "internal:deno_node/polyfills/internal/util.mjs";
+import { callbackify } from "internal:deno_node/polyfills/_util/_util_callbackify.ts";
+import { debuglog } from "internal:deno_node/polyfills/internal/util/debuglog.ts";
+import {
+  format,
+  formatWithOptions,
+  inspect,
+  stripVTControlCharacters,
+} from "internal:deno_node/polyfills/internal/util/inspect.mjs";
+import { codes } from "internal:deno_node/polyfills/internal/error_codes.ts";
+import types from "internal:deno_node/polyfills/util/types.ts";
+import { Buffer } from "internal:deno_node/polyfills/buffer.ts";
+import { isDeepStrictEqual } from "internal:deno_node/polyfills/internal/util/comparisons.ts";
+import process from "internal:deno_node/polyfills/process.ts";
+import { validateString } from "internal:deno_node/polyfills/internal/validators.mjs";
+
+export {
+  callbackify,
+  debuglog,
+  format,
+  formatWithOptions,
+  inspect,
+  promisify,
+  stripVTControlCharacters,
+  types,
+};
+
+/** @deprecated - use `Array.isArray()` instead. */
+export function isArray(value: unknown): boolean {
+  return Array.isArray(value);
+}
+
+/** @deprecated - use `typeof value === "boolean" || value instanceof Boolean` instead. */
+export function isBoolean(value: unknown): boolean {
+  return typeof value === "boolean" || value instanceof Boolean;
+}
+
+/** @deprecated - use `value === null` instead. */
+export function isNull(value: unknown): boolean {
+  return value === null;
+}
+
+/** @deprecated - use `value === null || value === undefined` instead. */
+export function isNullOrUndefined(value: unknown): boolean {
+  return value === null || value === undefined;
+}
+
+/** @deprecated - use `typeof value === "number" || value instanceof Number` instead. */
+export function isNumber(value: unknown): boolean {
+  return typeof value === "number" || value instanceof Number;
+}
+
+/** @deprecated - use `typeof value === "string" || value instanceof String` instead. */
+export function isString(value: unknown): boolean {
+  return typeof value === "string" || value instanceof String;
+}
+
+/** @deprecated - use `typeof value === "symbol"` instead. */
+export function isSymbol(value: unknown): boolean {
+  return typeof value === "symbol";
+}
+
+/** @deprecated - use `value === undefined` instead. */
+export function isUndefined(value: unknown): boolean {
+  return value === undefined;
+}
+
+/** @deprecated - use `value !== null && typeof value === "object"` instead. */
+export function isObject(value: unknown): boolean {
+  return value !== null && typeof value === "object";
+}
+
+/** @deprecated - use `e instanceof Error` instead. */
+export function isError(e: unknown): boolean {
+  return e instanceof Error;
+}
+
+/** @deprecated - use `typeof value === "function"` instead. */
+export function isFunction(value: unknown): boolean {
+  return typeof value === "function";
+}
+
+/** @deprecated Use util.types.RegExp() instead. */
+export function isRegExp(value: unknown): boolean {
+  return types.isRegExp(value);
+}
+
+/** @deprecated Use util.types.isDate() instead. */
+export function isDate(value: unknown): boolean {
+  return types.isDate(value);
+}
+
+/** @deprecated - use `value === null || (typeof value !== "object" && typeof value !== "function")` instead. */
+export function isPrimitive(value: unknown): boolean {
+  return (
+    value === null || (typeof value !== "object" && typeof value !== "function")
+  );
+}
+
+/** @deprecated  Use Buffer.isBuffer() instead. */
+export function isBuffer(value: unknown): boolean {
+  return Buffer.isBuffer(value);
+}
+
+/** @deprecated Use Object.assign() instead. */
+export function _extend(
+  target: Record<string, unknown>,
+  source: unknown,
+): Record<string, unknown> {
+  // Don't do anything if source isn't an object
+  if (source === null || typeof source !== "object") return target;
+
+  const keys = Object.keys(source!);
+  let i = keys.length;
+  while (i--) {
+    target[keys[i]] = (source as Record<string, unknown>)[keys[i]];
+  }
+  return target;
+}
+
+/**
+ * https://nodejs.org/api/util.html#util_util_inherits_constructor_superconstructor
+ * @param ctor Constructor function which needs to inherit the prototype.
+ * @param superCtor Constructor function to inherit prototype from.
+ */
+export function inherits<T, U>(
+  ctor: new (...args: unknown[]) => T,
+  superCtor: new (...args: unknown[]) => U,
+) {
+  if (ctor === undefined || ctor === null) {
+    throw new codes.ERR_INVALID_ARG_TYPE("ctor", "Function", ctor);
+  }
+
+  if (superCtor === undefined || superCtor === null) {
+    throw new codes.ERR_INVALID_ARG_TYPE("superCtor", "Function", superCtor);
+  }
+
+  if (superCtor.prototype === undefined) {
+    throw new codes.ERR_INVALID_ARG_TYPE(
+      "superCtor.prototype",
+      "Object",
+      superCtor.prototype,
+    );
+  }
+  Object.defineProperty(ctor, "super_", {
+    value: superCtor,
+    writable: true,
+    configurable: true,
+  });
+  Object.setPrototypeOf(ctor.prototype, superCtor.prototype);
+}
+
+import {
+  _TextDecoder,
+  _TextEncoder,
+  getSystemErrorName,
+} from "internal:deno_node/polyfills/_utils.ts";
+
+/** The global TextDecoder */
+export type TextDecoder = import("./_utils.ts")._TextDecoder;
+export const TextDecoder = _TextDecoder;
+
+/** The global TextEncoder */
+export type TextEncoder = import("./_utils.ts")._TextEncoder;
+export const TextEncoder = _TextEncoder;
+
+function pad(n: number) {
+  return n.toString().padStart(2, "0");
+}
+
+const months = [
+  "Jan",
+  "Feb",
+  "Mar",
+  "Apr",
+  "May",
+  "Jun",
+  "Jul",
+  "Aug",
+  "Sep",
+  "Oct",
+  "Nov",
+  "Dec",
+];
+
+/**
+ * @returns 26 Feb 16:19:34
+ */
+function timestamp(): string {
+  const d = new Date();
+  const t = [
+    pad(d.getHours()),
+    pad(d.getMinutes()),
+    pad(d.getSeconds()),
+  ].join(":");
+  return `${(d.getDate())} ${months[(d).getMonth()]} ${t}`;
+}
+
+/**
+ * Log is just a thin wrapper to console.log that prepends a timestamp
+ * @deprecated
+ */
+// deno-lint-ignore no-explicit-any
+export function log(...args: any[]) {
+  console.log("%s - %s", timestamp(), format(...args));
+}
+
+// Keep a list of deprecation codes that have been warned on so we only warn on
+// each one once.
+const codesWarned = new Set();
+
+// Mark that a method should not be used.
+// Returns a modified function which warns once by default.
+// If --no-deprecation is set, then it is a no-op.
+// deno-lint-ignore no-explicit-any
+export function deprecate(fn: any, msg: string, code?: any) {
+  if (process.noDeprecation === true) {
+    return fn;
+  }
+
+  if (code !== undefined) {
+    validateString(code, "code");
+  }
+
+  let warned = false;
+  // deno-lint-ignore no-explicit-any
+  function deprecated(this: any, ...args: any[]) {
+    if (!warned) {
+      warned = true;
+      if (code !== undefined) {
+        if (!codesWarned.has(code)) {
+          process.emitWarning(msg, "DeprecationWarning", code, deprecated);
+          codesWarned.add(code);
+        }
+      } else {
+        // deno-lint-ignore no-explicit-any
+        process.emitWarning(msg, "DeprecationWarning", deprecated as any);
+      }
+    }
+    if (new.target) {
+      return Reflect.construct(fn, args, new.target);
+    }
+    return Reflect.apply(fn, this, args);
+  }
+
+  // The wrapper will keep the same prototype as fn to maintain prototype chain
+  Object.setPrototypeOf(deprecated, fn);
+  if (fn.prototype) {
+    // Setting this (rather than using Object.setPrototype, as above) ensures
+    // that calling the unwrapped constructor gives an instanceof the wrapped
+    // constructor.
+    deprecated.prototype = fn.prototype;
+  }
+
+  return deprecated;
+}
+
+export { getSystemErrorName, isDeepStrictEqual };
+
+export default {
+  format,
+  formatWithOptions,
+  inspect,
+  isArray,
+  isBoolean,
+  isNull,
+  isNullOrUndefined,
+  isNumber,
+  isString,
+  isSymbol,
+  isUndefined,
+  isObject,
+  isError,
+  isFunction,
+  isRegExp,
+  isDate,
+  isPrimitive,
+  isBuffer,
+  _extend,
+  getSystemErrorName,
+  deprecate,
+  callbackify,
+  promisify,
+  inherits,
+  types,
+  stripVTControlCharacters,
+  TextDecoder,
+  TextEncoder,
+  log,
+  debuglog,
+  isDeepStrictEqual,
+};