source: frontend/node_modules/webpack/lib/WarnDeprecatedOptionPlugin.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Florent Cailhol @ooflorent
*/

"use strict";

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

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

const PLUGIN_NAME = "WarnDeprecatedOptionPlugin";

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;
        }

        /**
         * Applies the plugin by registering its hooks on the compiler.
         * @param {Compiler} compiler the compiler instance
         * @returns {void}
         */
        apply(compiler) {
                compiler.hooks.thisCompilation.tap(PLUGIN_NAME, (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();

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

module.exports = WarnDeprecatedOptionPlugin;