Function applyExperimentsDefaults

lib/config/defaults.js:575–612

(
	experiments,
	{ production, development, targetProperties }
)

 * @returns {void}
 */
const applyExperimentsDefaults = (
	experiments,
	{ production, development, targetProperties }
) => {
	D(experiments, "futureDefaults", false);
	D(experiments, "backCompat", !experiments.futureDefaults);
	// TODO do we need sync web assembly in webpack@6?
	D(experiments, "syncWebAssembly", false);
	D(experiments, "asyncWebAssembly", experiments.futureDefaults);
	// the universal target (web + node, neither specific) only works as ESM
	const universal =
		Boolean(targetProperties) &&
		/** @type {TargetProperties} */ (targetProperties).node === null &&
		/** @type {TargetProperties} */ (targetProperties).web === null;
	// the deno and bun targets only emit ECMAScript modules
	const deno =
		Boolean(targetProperties) &&
		/** @type {TargetProperties} */ (targetProperties).deno === true;
	const bun =
		Boolean(targetProperties) &&
		/** @type {TargetProperties} */ (targetProperties).bun === true;
	D(experiments, "outputModule", universal || deno || bun);
	D(experiments, "lazyCompilation", undefined);
	D(experiments, "buildHttp", undefined);
	D(experiments, "cacheUnaffected", experiments.futureDefaults);
	D(experiments, "deferImport", false);
	D(experiments, "sourceImport", false);
	F(experiments, "css", () => (experiments.futureDefaults ? true : undefined));
	F(experiments, "html", () => (experiments.futureDefaults ? true : undefined));
	F(experiments, "typescript", () =>
		experiments.futureDefaults ? true : undefined
	);

	if (typeof experiments.buildHttp === "object") {
		D(experiments.buildHttp, "frozen", production);
		D(experiments.buildHttp, "upgrade", false);
	}
};

/**
 * Apply cache defaults.