refactor(utils): inline defaults and isArguments helpers

lib/utils/defaults.ts

@@ -0,0 +1,158 @@
+/*
+ * Derived from `src/compat/object/defaults.ts` in es-toolkit
+ * (https://github.com/toss/es-toolkit).
+ *
+ * Copyright (c) 2024 Viva Republica, Inc
+ * Copyright OpenJS Foundation and other contributors
+ *
+ * Parts of the compatibility layer in `es-toolkit/compat` are derived from
+ * Lodash (https://github.com/lodash/lodash) by the OpenJS Foundation
+ * (https://openjsf.org/) and Underscore.js by Jeremy Ashkenas, DocumentCloud
+ * and Investigative Reporters & Editors (http://underscorejs.org/).
+ *
+ * This file has been modified from the original source to create a standalone
+ * adaptation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+const IS_UNSIGNED_INTEGER = /^(?:0|[1-9]\d*)$/;
+
+type DefaultSource = object | null | undefined;
+
+function isNil(value: unknown): value is null | undefined {
+  return value == null;
+}
+
+function eq(value: unknown, other: unknown): boolean {
+  return value === other || (Number.isNaN(value) && Number.isNaN(other));
+}
+
+function isLength(value?: unknown): value is number {
+  return Number.isSafeInteger(value) && (value as number) >= 0;
+}
+
+function isArrayLike(value?: unknown): value is { length: number } {
+  return (
+    value != null &&
+    typeof value !== "function" &&
+    isLength((value as ArrayLike<unknown>).length)
+  );
+}
+
+function isObject(value?: unknown): value is object {
+  return (
+    value !== null && (typeof value === "object" || typeof value === "function")
+  );
+}
+
+function isIndex(
+  value: PropertyKey,
+  length = Number.MAX_SAFE_INTEGER,
+): boolean {
+  switch (typeof value) {
+    case "number":
+      return Number.isInteger(value) && value >= 0 && value < length;
+    case "symbol":
+      return false;
+    case "string":
+      return IS_UNSIGNED_INTEGER.test(value);
+  }
+}
+
+function isIterateeCall(
+  value: unknown,
+  index: unknown,
+  object: unknown,
+): boolean {
+  if (!isObject(object)) {
+    return false;
+  }
+
+  if (
+    (typeof index === "number" &&
+      isArrayLike(object) &&
+      isIndex(index) &&
+      index < object.length) ||
+    (typeof index === "string" && index in object)
+  ) {
+    return eq((object as any)[index], value);
+  }
+
+  return false;
+}
+
+export function defaults<T, S>(object: T, source: S): NonNullable<S & T>;
+export function defaults<T, S1, S2>(
+  object: T,
+  source1: S1,
+  source2: S2,
+): NonNullable<S2 & S1 & T>;
+export function defaults<T, S1, S2, S3>(
+  object: T,
+  source1: S1,
+  source2: S2,
+  source3: S3,
+): NonNullable<S3 & S2 & S1 & T>;
+export function defaults<T, S1, S2, S3, S4>(
+  object: T,
+  source1: S1,
+  source2: S2,
+  source3: S3,
+  source4: S4,
+): NonNullable<S4 & S3 & S2 & S1 & T>;
+export function defaults<T>(object: T): NonNullable<T>;
+export function defaults(object: any, ...sources: any[]): any;
+export function defaults<T extends object, S extends object>(
+  object: T,
+  ...sources: DefaultSource[]
+): object {
+  object = Object(object);
+  const objectProto = Object.prototype;
+
+  let length = sources.length;
+  const guard = length > 2 ? sources[2] : undefined;
+  if (guard && isIterateeCall(sources[0], sources[1], guard)) {
+    length = 1;
+  }
+
+  for (let i = 0; i < length; i++) {
+    if (isNil(sources[i])) {
+      continue;
+    }
+
+    const source = sources[i] as Record<string, unknown>;
+    const keys = Object.keys(source);
+
+    for (let j = 0; j < keys.length; j++) {
+      const key = keys[j];
+      const value = (object as any)[key];
+
+      if (
+        value === undefined ||
+        (!objectProto.hasOwnProperty.call(object, key) &&
+          eq(value, objectProto[key as keyof typeof objectProto]))
+      ) {
+        (object as any)[key] = source[key];
+      }
+    }
+  }
+
+  return object;
+}

lib/utils/index.ts

@@ -1,7 +1,7 @@
 import { promises as fsPromises } from "fs";
 import { resolve } from "path";
 import { parse as urllibParse } from "url";
-import { defaults, noop } from "./lodash";
+import { defaults, isArguments, noop } from "./lodash";
 import { Callback } from "../types";
 import Debug from "./debug";
 
@@ -358,4 +358,4 @@ export async function getPackageMeta() {
   }
 }
 
-export { Debug, defaults, noop };
+export { Debug, defaults, isArguments, noop };

lib/utils/isArguments.ts

@@ -0,0 +1,49 @@
+/*
+ * Derived from `src/compat/predicate/isArguments.ts` in es-toolkit
+ * (https://github.com/toss/es-toolkit).
+ *
+ * Copyright (c) 2024 Viva Republica, Inc
+ * Copyright OpenJS Foundation and other contributors
+ *
+ * Parts of the compatibility layer in `es-toolkit/compat` are derived from
+ * Lodash (https://github.com/lodash/lodash) by the OpenJS Foundation
+ * (https://openjsf.org/) and Underscore.js by Jeremy Ashkenas, DocumentCloud
+ * and Investigative Reporters & Editors (http://underscorejs.org/).
+ *
+ * This file has been modified from the original source to create a standalone
+ * adaptation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+function getTag(value: unknown) {
+  if (value == null) {
+    return value === undefined ? "[object Undefined]" : "[object Null]";
+  }
+
+  return Object.prototype.toString.call(value);
+}
+
+export function isArguments(value?: unknown): value is IArguments {
+  return (
+    value !== null &&
+    typeof value === "object" &&
+    getTag(value) === "[object Arguments]"
+  );
+}

lib/utils/lodash.ts

@@ -1,6 +1,4 @@
-import defaults = require("lodash.defaults");
-import isArguments = require("lodash.isarguments");
-
 export function noop() {}
 
-export { defaults, isArguments };
+export * from "./defaults";
+export * from "./isArguments";

package.json

@@ -47,8 +47,6 @@
     "cluster-key-slot": "1.1.1",
     "debug": "4.4.3",
     "denque": "2.1.0",
-    "lodash.defaults": "4.2.0",
-    "lodash.isarguments": "3.1.0",
     "redis-errors": "1.2.0",
     "redis-parser": "3.0.0",
     "standard-as-callback": "2.1.0"
@@ -61,8 +59,6 @@
     "@types/chai": "^4.3.0",
     "@types/chai-as-promised": "^7.1.5",
     "@types/debug": "^4.1.5",
-    "@types/lodash.defaults": "^4.2.7",
-    "@types/lodash.isarguments": "^3.1.7",
     "@types/mocha": "^9.1.0",
     "@types/node": "^14.18.12",
     "@types/redis-errors": "^1.2.1",