xwt
2025-07-04 b76e716ff4656191d73eba398e9eb39ee975e13b
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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Gengkun He @ahabhgk
*/
 
"use strict";
 
const WebpackError = require("./WebpackError");
const makeSerializable = require("./util/makeSerializable");
 
/** @typedef {import("./Module")} Module */
/** @typedef {import("./Compilation")} Compilation */
/** @typedef {import("./RuntimeTemplate")} RuntimeTemplate */
/** @typedef {import("./serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("./serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
/** @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);
 
        this.name = "EnvironmentNotSupportAsyncWarning";
        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/EnvironmentNotSupportAsyncWarning"
);
 
module.exports = EnvironmentNotSupportAsyncWarning;