refactor: fix test262

alexander-akait · alexander-akait · commit 7c9b6c9aa583 · 2026-04-08T16:43:01.000+03:00
diff --git a/lib/WebpackOptionsApply.js b/lib/WebpackOptionsApply.js
@@ -486,7 +486,13 @@ class WebpackOptionsApply extends OptionsApply {
 			new HttpUriPlugin(httpOptions).apply(compiler);
 		}
 
-		if (options.experiments.deferImport || options.experiments.sourceImport) {
+		if (
+			!(
+				/** @type {typeof JavascriptParser & { __importPhasesExtended?: true }} */
+				(JavascriptParser).__importPhasesExtended
+			) &&
+			(options.experiments.deferImport || options.experiments.sourceImport)
+		) {
 			const importPhases = require("acorn-import-phases");
 
 			JavascriptParser.extend(importPhases({ source: true, defer: true }));
