webpack/lib/runtime/HasOwnPropertyRuntimeModule.js

Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Sergey Melyukov @smelukov
*/

"use strict";

const RuntimeGlobals = require("../RuntimeGlobals");
const RuntimeModule = require("../RuntimeModule");
const Template = require("../Template");

/** @typedef {import("../Compilation")} Compilation */

class HasOwnPropertyRuntimeModule extends RuntimeModule {
	constructor() {
		super("hasOwnProperty shorthand");
	}

	/**
	 * @returns {string | null} runtime code
	 */
	generate() {
		const compilation = /** @type {Compilation} */ (this.compilation);
		const { runtimeTemplate } = compilation;

		return Template.asString([
			`${RuntimeGlobals.hasOwnProperty} = ${runtimeTemplate.returningFunction(
				"Object.prototype.hasOwnProperty.call(obj, prop)",
				"obj, prop"
			)}`
		]);
	}
}

module.exports = HasOwnPropertyRuntimeModule;