Allow no parentURL for bare specifiers

vercel · Jun 27, 2024 · 05b5876 · 05b5876
1 parent 07c68a7
commit 05b5876
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Showing 2 changed files with 6 additions and 5 deletions.
diff --git a/src/analyze.ts b/src/analyze.ts
@@ -895,17 +895,18 @@ export default async function analyze(
               break;
             case MODULE_FN:
               if (
-                node.arguments.length > 1 &&
+                node.arguments.length &&
                 // TODO: We only cater for the case where the first argument is a string
                 node.arguments[0].type === 'Literal'
               ) {
                 const pathOrSpecifier = node.arguments[0].value;
                 // It's a relative URL
                 if (pathOrSpecifier.startsWith('.')) {
                   // Compute the parentURL if it's statically analyzable
-                  const computedParentURL = await computePureStaticValue(
-                    node.arguments[1],
-                  );
+                  const computedParentURL =
+                    node.arguments.length > 1
+                      ? await computePureStaticValue(node.arguments[1])
+                      : undefined;
 
                   if (computedParentURL && 'value' in computedParentURL) {
                     const parentURL =

diff --git a/test/unit/module-register/input-esm.mjs b/test/unit/module-register/input-esm.mjs
@@ -3,4 +3,4 @@ import { register } from 'module';
 // Load relative to the current file
 register('./hook.mjs', import.meta.url);
 // Load from a bare specifier
-register('test-pkg', import.meta.url);
+register('test-pkg');