Method getTypes

lib/css/CssGenerator.js:618–676

* Returns the source types available for this module. * @param {NormalModule} module fresh module * @returns {SourceTypes} available types (do not mutate)

(module)

	 * @returns {SourceTypes} available types (do not mutate)
	 */
	getTypes(module) {
		const exportType = /** @type {CssModule} */ (module).exportType || "link";
		if (exportType === "style") {
			return JAVASCRIPT_TYPES;
		}

		let hasJs = false;
		let hasCssText = false;
		const connections = this._moduleGraph.getIncomingConnections(module);

		for (const connection of connections) {
			if (hasJs && hasCssText) break;
			if (
				exportType === "link" &&
				connection.dependency instanceof CssImportDependency
			) {
				continue;
			}

			if (connection.dependency instanceof HarmonyImportSideEffectDependency) {
				continue;
			}

			// HTML inline styles consume CSS_TEXT_TYPE directly.
			if (
				connection.dependency &&
				(connection.dependency.category === "html-style" ||
					connection.dependency.category === "html-style-attribute")
			) {
				hasCssText = true;
				continue;
			}

			if (!connection.originModule) {
				continue;
			}

			if (!connection.originModule.type.startsWith(CSS_TYPE_PREFIX)) {
				hasJs = true;
			} else {
				const originModule = /** @type {CssModule} */ connection.originModule;
				const originExportType =
					/** @type {CssModule} */ (originModule).exportType || "link";
				if (originExportType !== "link") {
					hasJs = true;
				}
			}
		}
		if (this._exportsOnly || exportType !== "link") {
			if (hasJs && hasCssText) return JAVASCRIPT_AND_CSS_TEXT_TYPES;
			if (hasJs) return JAVASCRIPT_TYPES;
			if (hasCssText) return CSS_TEXT_TYPES;
			return NO_TYPES;
		}
		if (hasJs) {
			return JAVASCRIPT_AND_CSS_TYPES;
		}
		return CSS_TYPES;