fix(linter/plugins): more graceful exit for --experimental-js-plugins CLI option (#13688)

overlookmotel · overlookmotel · commit 68a2280575a9 · 2025-09-11T13:14:31.000Z
`--experimental-js-plugins` option is not supported in `oxlint` at present. Exit more gracefully if it's used.
diff --git a/apps/oxlint/src/lib.rs b/apps/oxlint/src/lib.rs
@@ -55,9 +55,13 @@ pub fn lint(mut external_linter: Option<ExternalLinter>) -> CliRunResult {
 
     command.handle_threads();
 
+    #[expect(clippy::print_stderr)]
     if command.experimental_js_plugins {
-        // If this assertion fails, this function was not called by `napi/oxlint2`.
-        assert!(external_linter.is_some(), "JS plugins are not supported at present");
+        // If no `ExternalLinter`, this function was not called by `napi/oxlint2`
+        if external_linter.is_none() {
+            eprintln!("ERROR: JS plugins are not supported at present");
+            return CliRunResult::InvalidOptionConfig;
+        }
     } else {
         external_linter = None;
     }
