Source code
Revision control
Copy as Markdown
Other Tools
/*
*/
"use strict";
/** @typedef {import("../Module")} Module */
/** @typedef {import("../ModuleGraph")} ModuleGraph */
/** @typedef {import("../RuntimeTemplate")} RuntimeTemplate */
/**
* Whether an async module is lowered to a generator: the target has no
* `async`/`await` but supports generators, and the module contains no
* top-level `for await…of` (which generators can't express).
* @param {Module} module module
* @param {ModuleGraph} moduleGraph module graph
* @param {RuntimeTemplate} runtimeTemplate runtime template
* @returns {boolean} true when the module should be emitted as a generator
*/
const isGeneratorLowered = (module, moduleGraph, runtimeTemplate) =>
moduleGraph.isAsync(module) &&
!runtimeTemplate.supportsAsyncFunction() &&
Boolean(runtimeTemplate.supportsGenerator()) &&
!(module.buildInfo && module.buildInfo.usesTopLevelAwaitForOf);
module.exports = isGeneratorLowered;