lib: add parent to ERR_UNKNOWN_FILE_EXTENSION

- default_resolve updated to pass parentURL into error
- ERR_UNKNOWN_FILE_EXTENSION updated to include parentURL
- test added to check for import message in error

PR-URL: #30728
Fixes: #30721
Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

lib/internal/errors.js

@@ -1213,7 +1213,9 @@ E('ERR_UNHANDLED_ERROR',
 E('ERR_UNKNOWN_BUILTIN_MODULE', 'No such built-in module: %s', Error);
 E('ERR_UNKNOWN_CREDENTIAL', '%s identifier does not exist: %s', Error);
 E('ERR_UNKNOWN_ENCODING', 'Unknown encoding: %s', TypeError);
-E('ERR_UNKNOWN_FILE_EXTENSION', 'Unknown file extension: %s', TypeError);
+E('ERR_UNKNOWN_FILE_EXTENSION',
+  'Unknown file extension "%s" for %s imported from %s',
+  TypeError);
 E('ERR_UNKNOWN_MODULE_FORMAT', 'Unknown module format: %s', RangeError);
 E('ERR_UNKNOWN_SIGNAL', 'Unknown signal: %s', TypeError);
 

lib/internal/modules/esm/default_resolve.js

@@ -114,7 +114,10 @@ function resolve(specifier, parentURL) {
         'ExperimentalWarning');
       format = legacyExtensionFormatMap[ext];
     } else {
-      throw new ERR_UNKNOWN_FILE_EXTENSION(fileURLToPath(url));
+      throw new ERR_UNKNOWN_FILE_EXTENSION(
+        ext,
+        fileURLToPath(url),
+        fileURLToPath(parentURL));
     }
   }
   return { url: `${url}`, format };

test/es-module/test-esm-invalid-extension.js

@@ -6,8 +6,10 @@ const { spawnSync } = require('child_process');
 const fixture = fixtures.path('/es-modules/import-invalid-ext.mjs');
 const child = spawnSync(process.execPath, ['--experimental-modules', fixture]);
 const errMsg = 'TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension';
+const importMsg = `imported from ${fixture}`;
 
 assert.strictEqual(child.status, 1);
 assert.strictEqual(child.signal, null);
 assert.strictEqual(child.stdout.toString().trim(), '');
 assert(child.stderr.toString().includes(errMsg));
+assert(child.stderr.toString().includes(importMsg));