source: frontend/node_modules/webpack/lib/errors/EnvironmentNotSupportAsyncWarning.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Gengkun He @ahabhgk
*/

"use strict";

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

/** @typedef {import("../Module")} Module */
/** @typedef {import("../RuntimeTemplate")} RuntimeTemplate */
/** @typedef {"asyncWebAssembly" | "topLevelAwait" | "external promise" | "external script" | "external import" | "external module"} Feature */

class EnvironmentNotSupportAsyncWarning extends WebpackError {
        /**
         * Creates an instance of EnvironmentNotSupportAsyncWarning.
         * @param {Module} module module
         * @param {Feature} feature feature
         */
        constructor(module, feature) {
                const message = `The generated code contains 'async/await' because this module is using "${feature}".
However, your target environment does not appear to support 'async/await'.
As a result, the code may not run as expected or may cause runtime errors.`;
                super(message);

                /** @type {string} */
                this.name = "EnvironmentNotSupportAsyncWarning";
                /** @type {Module} */
                this.module = module;
        }

        /**
         * Creates an instance of EnvironmentNotSupportAsyncWarning.
         * @param {Module} module module
         * @param {RuntimeTemplate} runtimeTemplate compilation
         * @param {Feature} feature feature
         */
        static check(module, runtimeTemplate, feature) {
                if (!runtimeTemplate.supportsAsyncFunction()) {
                        module.addWarning(new EnvironmentNotSupportAsyncWarning(module, feature));
                }
        }
}

makeSerializable(
        EnvironmentNotSupportAsyncWarning,
        "webpack/lib/errors/EnvironmentNotSupportAsyncWarning"
);

module.exports = EnvironmentNotSupportAsyncWarning;