Function toCacheVersion

lib/DefinePlugin.js:313–347

(code)

 * @returns {string | undefined} result
 */
const toCacheVersion = (code) => {
	if (code === null) {
		return class="st">"null";
	}
	if (code === undefined) {
		return class="st">"undefined";
	}
	if (Object.is(code, -0)) {
		return class="st">"-0";
	}
	if (code instanceof RuntimeValue) {
		return code.getCacheVersion();
	}
	if (code instanceof RegExp && code.toString) {
		return code.toString();
	}
	if (typeof code === class="st">"function" && code.toString) {
		return `(${code.toString()})`;
	}
	if (typeof code === class="st">"object") {
		const items = Object.keys(code).map((key) => ({
			key,
			value: toCacheVersion(
				/** @type {Record<string, CodeValue>} */
				(code)[key]
			)
		}));
		if (items.some(({ value }) => value === undefined)) return;
		return `{${items.map(({ key, value }) => `${key}: ${value}`).join(class="st">", ")}}`;
	}
	if (typeof code === class="st">"bigint") {
		return `${code}n`;
	}
	return `${code}`;
};

const PLUGIN_NAME = class="st">"DefinePlugin";
const VALUE_DEP_PREFIX = `webpack/${PLUGIN_NAME} `;