Function createGetImportPhase

lib/dependencies/ImportPhase.js:82–166

* Creates an import phase resolver. * @param {boolean=} enableDeferPhase enable defer phase detection * @param {boolean=} enableSourcePhase enable source phase detection * @returns {GetImportPhase} evaluates the import phase for ast node

(enableDeferPhase, enableSourcePhase)

 * @returns {GetImportPhase} evaluates the import phase for ast node
 */
function createGetImportPhase(enableDeferPhase, enableSourcePhase) {
	return (parser, node, getCommentOptions) => {
		if (!enableDeferPhase && !enableSourcePhase) return ImportPhase.Evaluation;

		// We now only support `defer import` and `source import` syntax
		const phaseBySyntax =
			"phase" in node
				? node.phase === "defer" && enableDeferPhase
					? ImportPhase.Defer
					: node.phase === "source" && enableSourcePhase
						? ImportPhase.Source
						: ImportPhase.Evaluation
				: ImportPhase.Evaluation;

		if (!node.range) {
			return phaseBySyntax;
		}

		getCommentOptions =
			getCommentOptions ||
			(() => {
				if (!node.range) return null;
				const { options, errors } = parser.parseCommentOptions(node.range);
				if (errors) {
					for (const e of errors) {
						const { comment } = e;
						if (!comment.loc) continue;

						const CommentCompilationWarning = getCommentCompilationWarning();
						parser.state.module.addWarning(
							new CommentCompilationWarning(
								`Compilation error while processing magic comment(-s): /*${comment.value}*/: ${e.message}`,
								comment.loc
							)
						);
					}
				}
				return options;
			});

		const options = getCommentOptions();

		if (!options) {
			return phaseBySyntax;
		}

		if (!options.webpackDefer && !options.webpackSource) {
			return phaseBySyntax;
		}

		const { webpackDefer, webpackSource } = options;

		if (enableDeferPhase && typeof options.webpackDefer !== "undefined") {
			if (typeof webpackDefer === "boolean") {
				return webpackDefer ? ImportPhase.Defer : phaseBySyntax;
			} else if (node.loc) {
				const CommentCompilationWarning = getCommentCompilationWarning();