webpack/lib/WarnDeprecatedOptionPlugin.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 Florent Cailhol @ooflorent
*/

"use strict";

const WebpackError = require("./WebpackError");

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

class WarnDeprecatedOptionPlugin {
	/**
	 * Create an instance of the plugin
	 * @param {string} option the target option
	 * @param {string | number} value the deprecated option value
	 * @param {string} suggestion the suggestion replacement
	 */
	constructor(option, value, suggestion) {
		this.option = option;
		this.value = value;
		this.suggestion = suggestion;
	}

	/**
	 * Apply the plugin
	 * @param {Compiler} compiler the compiler instance
	 * @returns {void}
	 */
	apply(compiler) {
		compiler.hooks.thisCompilation.tap(
			"WarnDeprecatedOptionPlugin",
			compilation => {
				compilation.warnings.push(
					new DeprecatedOptionWarning(this.option, this.value, this.suggestion)
				);
			}
		);
	}
}

class DeprecatedOptionWarning extends WebpackError {
	/**
	 * Create an instance deprecated option warning
	 *
	 * @param {string} option the target option
	 * @param {string | number} value the deprecated option value
	 * @param {string} suggestion the suggestion replacement
	 */
	constructor(option, value, suggestion) {
		super();

		this.name = "DeprecatedOptionWarning";
		this.message =
			"configuration\n" +
			`The value '${value}' for option '${option}' is deprecated. ` +
			`Use '${suggestion}' instead.`;
	}
}

module.exports = WarnDeprecatedOptionPlugin;